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<title>International Journal of Medical Sciences</title> 
<link>http://www.medsci.org</link> 
<description>International Journal of Medical Sciences RSS feed -- Volume 4</description> 
<language>en-us</language> 
<pubDate>Tue, 20 Nov 2012 04:00:00 GMT</pubDate>
<lastBuildDate>Tue, 20 Nov 2012 04:00:00 GMT</lastBuildDate> 

<item>
<link>http://www.medsci.org/v04p0288.htm</link> 
<title>Association of Adiposity, Cardiorespiratory Fitness and Exercise Practice with the Prevalence of Type 2 Diabetes in Brazilian Elderly Women</title> 
<description><![CDATA[ <p><b>Background: </b>Diabetes incidence in people with advanced age is increasing at an alarming rate, and for this reason the screening of high-risk individuals such as elderly women is critically important. <b>Objective: </b>To analyze the association of adiposity, cardiorespiratory fitness and exercise practice with type 2 diabetes (T2D) in elderly Brazilian women. <b>Methods: </b>Participated of this cross sectional study 1,059 elderly women (mean 69.5 yr; SD 6.1), who self-reported family history of cardiovascular disease, smoking status, hypertension, and T2D diagnosed previously by a physician. The following independent variables were assessed: exercise practice, body mass index, waist circumference, and cardiorespiratory fitness. Logistic regression analysis was used to investigate the association between each independent variable with T2D using adjusted-models. <b>Results: </b>T2D prevalence was 16%. General and central adiposity were directly associated with T2D, whereas cardiorespiratory fitness was inversely related with T2D. The joint effect of exercise practice and central adiposity showed that inactive women had higher odds ratio for T2D when compared with active ones, within the same WC group. Inactive women with WC &#8805; 94.0 cm had an odds ratio of 5.8 (95%IC 1.3-25.3). <b>Conclusions: </b>A direct positive association was found between general and central adiposity, as well as an inverse relation between CRF and exercise practice with T2D. Elderly women who practice exercise regularly had lower odds for T2D. Health professionals should encourage individuals of all ages to engage on regular exercise practice, which could reduce body fatness and may be beneficial in reducing the prevalence of T2D in older ages.</p> ]]></description>  
<dc:creator>Maressa P. Krause, Tatiane Hallage, Mirnaluci Paulino Ribeiro Gama, Fredric L. Goss, Robert Robertson, Sergio G. da Silva</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>288</prism:startingPage> 
<prism:endingPage>292</prism:endingPage> 
<pubDate>2007-11-21</pubDate>
<category>Short Research Communication</category>
</item>

<item>
<link>http://www.medsci.org/v04p0278.htm</link> 
<title>Self-rated health showed a consistent association with serum HDL-cholesterol in the cross-sectional Oslo Health Study</title> 
<description><![CDATA[ <p><b>Objective</b>: To examine the association between serum HDL-cholesterol concentration (HDL-C) and self rated health (SRH) in several age groups of men and women.</p> <p><b>Study design and setting:</b> The study had a cross-sectional design and included 18,770 men and women of the Oslo Health Study aged 30; 40 and 45; 69-60; 75-76 years.</p> <p><b>Results</b>: In both sexes and all age groups, SRH (3 categories: poor, good, very good) was positively correlated with HDL-C. Logistic regression analysis on dichotomized values of SRH (i.e. poor vs. good health) in each age group of men and women showed that increasing HDL-C values were associated with increasing odds for reporting good health; the odds ratio (OR) was highest in young men, and was generally lower in women than in men. Odds ratios in the 4 age groups of men were 4.94 (2.63-9.29), 2.25 (1.63-3.09), 2.12 (1.58-2.86), 1.87 (1.37-2.54); and in women: 3.58 (2.46-5.21), 2.81 (2.23-3.53), 2.28 (1.84-2.82), 1.61 (1.31-1.99). In the whole material, 1 mmol/L increase in HDL-C increased the odds for reporting good health by 2.27 (2.06-2.50; p&#60;0.001), when adjusting for sex, age group, time since food intake and use of cholesterol lowering drugs. Chronic diseases, pain, psychological distress, smoking, alcohol, length of education, and dietary items did not have any major influence on the pattern of the HDL-C vs. SRH association.</p> <p><b>Conclusion:</b> There was a consistent positive association between HDL-C and SRH, in both men and women in four different age groups, with the strongest association in young people.</p> ]]></description>  
<dc:creator>Sissel E. Tomten, Arne T. H&#248;stmark</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>278</prism:startingPage> 
<prism:endingPage>287</prism:endingPage> 
<pubDate>2007-11-20</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0267.htm</link> 
<title>BioShuttle-mediated Plasmid Transfer</title> 
<description><![CDATA[ <p>An efficient gene transfer into target tissues and cells is needed for safe and effective treatment of genetic diseases like cancer. In this paper, we describe the development of a transport system and show its ability for transporting plasmids. This non-viral peptide-based BioShuttle-mediated transfer system consists of a nuclear localization address sequence realizing the delivery of the plasmid phNIS-IRES-EGFP coding for two independent reporter genes into nuclei of HeLa cells. The quantification of the transfer efficiency was achieved by measurements of the sodium iodide symporter activity. EGFP gene expression was measured with Confocal Laser Scanning Microscopy and quantified with biostatistical methods by analysis of the frequency of the amplitude distribution in the CLSM images. The results demonstrate that the &#8220;BioShuttle&#8221;-Technology is an appropriate tool for an effective transfer of genetic material carried by a plasmid.</p> ]]></description>  
<dc:creator>Klaus Braun, Leonie von Brasch, Ruediger Pipkorn, Volker Ehemann, Juergen Jenne, Herbert Spring, Juergen Debus, Bernd Didinger, Werner Rittgen, Waldemar Waldeck</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>267</prism:startingPage> 
<prism:endingPage>277</prism:endingPage> 
<pubDate>2007-10-30</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0264.htm</link> 
<title>Immunohistochemical Characteristics of Bone Forming Cells in Pleomorphic Adenoma</title> 
<description><![CDATA[ <p>Histopathological and immunohistochemical examinations were carried out in a case of pleomorphic adenoma with bone formation, occurring in the chin of a 34-year-old Japanese man. Examination results showed the modified neoplastic myoepithelial cells reacted positively to S-100 protein. The S-100-positive modified neoplastic myoepithelial cells were proliferated in the closely related area of the bone tissue. Furthermore, positive reaction was detected in the bone forming cells: osteoblasts and osteocytes. These cells also reacted positively to Runx2 as a marker of bone forming cells. These results suggest that the origin of the bone forming cells in this case of pleomorphic adenoma was modified neoplastic myoepithelial cells.</p> ]]></description>  
<dc:creator>Keisuke Nakano, Takehiro Watanabe, Takako Shimizu, Toshiyuki Kawakami</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>264</prism:startingPage> 
<prism:endingPage>266</prism:endingPage> 
<pubDate>2007-10-16</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0249.htm</link> 
<title>Computerized two-lead resting ECG analysis for the detection of coronary artery stenosis</title> 
<description><![CDATA[ <p><i>Background</i>: Resting electrocardiogram (ECG) shows limited sensitivity and specificity for the detection of coronary artery disease (CAD). Several methods exist to enhance sensitivity and specificity of resting ECG for diagnosis of CAD, but such methods are not better than a specialist's judgement. We compared a new computer-enhanced, resting ECG analysis device, 3DMP, to coronary angiography to evaluate the device's accuracy in detecting hemodynamically relevant CAD.</p> <p><i>Methods</i>: A convenience sample of 423 patients without prior coronary revascularization was evaluated with 3DMP before coronary angiography. 3DMP's sensitivity and specificity in detecting hemodynamically relevant coronary stenosis as diagnosed with coronary angiography were calculated as well as odds ratios for the 3DMP severity score and coronary artery disease risk factors.</p> <p><i>Results</i>: 3DMP identified 179 of 201 patients with hemodynamically relevant stenosis (sensitivity 89.1%, specificity 81.1%). The positive and negative predictive values for identification of coronary stenosis as diagnosed in coronary angiograms were 79% and 90% respectively. CAD risk factors in a logistic regression model had markedly lower predictive power for the presence of coronary stenosis in patients than did 3DMP severity score (odds ratio 3.35 [2.24-5.01] vs. 34.87 [20.00-60.79]). Logistic regression combining severity score with risk factors did not add significantly to the prediction quality (odds ratio 36.73 [20.92-64.51]).</p> <p><i>Conclusions</i>: 3DMP's computer-based, mathematically derived analysis of resting two-lead ECG data provides detection of hemodynamically relevant CAD with high sensitivity and specificity that appears to be at least as good as those reported for other resting and/or stress ECG methods currently used in clinical practice.</p> ]]></description>  
<dc:creator>Eberhard Grube, Andreas Bootsveld, Seyrani Yuecel, Joseph T. Shen, Michael Imhoff</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>249</prism:startingPage> 
<prism:endingPage>263</prism:endingPage> 
<pubDate>2007-10-16</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0247.htm</link> 
<title>Comment on Childhood Febrile Seizures: Overview and Implications by Tonia Jones and Steven J. Jacobsen</title> 
<description><![CDATA[  ]]></description>  
<dc:creator>Efterpi Pavlidou, Christos P. Panteliadis</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>247</prism:startingPage> 
<prism:endingPage>248</prism:endingPage> 
<pubDate>2007-10-15</pubDate>
<category>Letter To The Editor</category>
</item>

<item>
<link>http://www.medsci.org/v04p0242.htm</link> 
<title>Do tonic and burst TMS modulate the lemniscal and extralemniscal system differentially?</title> 
<description><![CDATA[ <p>Introduction: Tinnitus is an auditory phantom percept related to tonic and burst hyperactivity of the auditory system. Two parallel pathways supply auditory information to the cerebral cortex: the tonotopically organised lemniscal system, and the non-tonotopic extralemniscal system, firing in tonic mode and burst mode respectively. Transcranial magnetic stimulation (TMS) is a non-invasive method capable of modulating activity of the human cortex, by delivering tonic or burst stimuli. Burst stimulation is shown to be more powerful in activating the cerebral cortex than tonic stimulation and bursts may activate neurons that are not activated by tonic stimulations.</p> <p>Methods: The effect of both tonic and burst TMS in 14 placebo-negative patients presenting narrow band/white noise tinnitus were analysed.</p> <p>Results: Our TMS results show that narrow band/white noise tinnitus is better suppressed with burst TMS in comparison to tonic TMS, <i>t</i>(13)=6.4, <i>p</i>=.000. For pure tone tinnitus no difference is found between burst or tonic TMS, <i>t</i>(13)=.3, <i>ns.</i></p> <p>Discussion: Based on the hypothesis that white noise is the result of hyperactivity in the non-tonotopic system and pure tone tinnitus of the tonotopic system, we suggest that burst stimulation modulates the extralemniscal system and lemniscal system and tonic stimulation only the lemniscal system.</p> ]]></description>  
<dc:creator>Dirk De Ridder, Elsa van der Loo, Karolien Van der Kelen, Tomas Menovsky, Paul van de Heyning, Aage Moller</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>242</prism:startingPage> 
<prism:endingPage>246</prism:endingPage> 
<pubDate>2007-10-9</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0237.htm</link> 
<title>Theta, alpha and beta burst transcranial magnetic stimulation: brain modulation in tinnitus</title> 
<description><![CDATA[ <p>Introduction: Some forms of tinnitus are considered to be auditory phantom phenomena related to reorganization and hyperactivity of the auditory central nervous system. Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive tool capable of modulating human brain activity, using single pulse or burst stimuli. Burst rTMS has only been performed in the theta range, and has not been used clinically. The authors analyze whether burst TMS at theta (5 Hz), alpha (10 Hz) and beta (20 Hz) frequencies can temporarily suppress narrow band noise/white noise tinnitus, which has been demonstrated to be intractable to tonic stimulation.</p> <p>Methods: rTMS is performed both in tonic and burst mode in 46 patients contralateral to the tinnitus side, at 5, 10 and 20 Hz. Fourteen placebo negative rTMS responders are further analyzed.</p> <p>Results: In 5 patients, maximal tinnitus suppression is obtained with theta, in 2 with alpha and in 7 with beta burst stimulation. Burst rTMS suppresses narrow band/white tinnitus much better than tonic rTMS<i> t</i>(13)=6.4, <i>p</i>&#60;.000. Women experience greater suppression of their tinnitus with burst stimulation than men, <i>t</i>(12)=2.9, <i>p</i>&#60;.05. Furthermore left sided tinnitus is perceived as more distressing on the TQ than right sided tinnitus, <i>t</i>(12)=3.2, p&#60;.01. The lower the tinnitus pitch the more effectively rTMS suppresses tinnitus(<i>r</i>=-0.65, <i>p</i>&#60;0.05).</p> <p>Discussion: Burst rTMS can be used clinically, not only theta burst, but also alpha and beta burst. Burst rTMS is capable of suppressing narrow band/white noise tinnitus very much better than tonic rTMS. This could be due the simple fact that burst neuromodulation is more powerful than tonic neuromodulation or to a differential effect of burst and tonic stimulation on the lemniscal and extralemniscal auditory system. In some patients only alpha or beta burst rTMS is capable of suppressing tinnitus, and theta burst not. Therefore in future rTMS studies it could be worthwhile not to limit burst stimulation to theta burst rTMS.</p> ]]></description>  
<dc:creator>Dirk De Ridder, Elsa van der Loo, Karolien Van der Kelen, Tomas Menovsky, Paul van de Heyning, Aage Moller</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>5</prism:number> 
<prism:startingPage>237</prism:startingPage> 
<prism:endingPage>241</prism:endingPage> 
<pubDate>2007-10-9</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0232.htm</link> 
<title>Familial Polycythemia Caused by a Novel Mutation in the Beta Globin Gene: Essential Role of P50 in Evaluation of Familial Polycythemia</title> 
<description><![CDATA[ <p>Two polycythemic subjects from a family with multiple polycythemic subjects were evaluated. Estimation of oxygen affinity of Hb from venous blood gas parameters (P50) revealed low P50 suggesting a high affinity Hb variant. Further work up, which included beta globin gene sequencing, revealed a novel mutation changing a codon to the previously reported high affinity Hb - Hb Johnstown (beta109 Val-&#62;Leu). Polycythemic subjects with high affinity Hb variant are asymptomatic with normal life expectancy. Their differentiation from polycythemia vera (PV) is crucial to avoid therapy which is otherwise reserved for PV patients. We provide an electronic version (in Microsoft excel program) of a previously reported mathematical formula for rapid calculation of P50 from venous blood gases. Estimation of P50 is an essential initial step in the evaluation of a subject with personal and family history of polycythemia.</p> ]]></description>  
<dc:creator>Neeraj Agarwal, Mariluz P. Mojica-Henshaw, Elizabeth. D. Simmons, Dottie Hussey, Ching N. Ou, Josef T. Prchal</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>232</prism:startingPage> 
<prism:endingPage>236</prism:endingPage> 
<pubDate>2007-10-4</pubDate>
<category>Short Research Communication</category>
</item>

<item>
<link>http://www.medsci.org/v04p0223.htm</link> 
<title>Chlamydia trachomatis Infection of Human Trophoblast Alters Estrogen and Progesterone Biosynthesis: an insight into role of infection in pregnancy sequelae</title> 
<description><![CDATA[ <p>The trophoblast cells are in direct contact with endometrial tissues throughout gestation, playing important early roles in implantation and placentation. The physiologic significance and the operating mechanisms involved in probable altered trophoblast functions following <i>Chlamydia trachomatis</i> infection were investigated to determine if <i>C. trachomatis</i> initiates productive infection in trophoblast, effects of such event on the biosynthesis of cholesterol and its derivatives estrogen and progesterone; and the regulator of the biosynthesis of these hormones, human chorionic gonadotropin. <i>Chlamydia trachomatis</i> exhibited productive infection in trophoblast typified by inclusion formation observed when chlamydia elementary bodies were harvested from trophoblast and titrated onto HEp-2 cells. Assessment of the status of <i>C. trachomatis</i> in trophoblast showed a relative increase in protein of HSP-60 compared with MOMP, features suggestive of chlamydial chronicity. There was a decrease in cellular cholesterol of chlamydia infected trophoblast and a down regulation of HMG-CoA reductase. The levels of estrogen and progesterone were decreased, while the expression of aromatase and adrenodoxin reductase was up regulated. Also, there was a decrease in human chorionic gonadotropin expression. The implications of these findings are that <i>C. trachomatis</i> infection of trophoblast may compromise cellular cholesterol biosynthesis, thus depleting the substrate pool for estrogen and progesterone synthesis. This defect may impair trophoblast functions of implantation and placentation, and consequently affect pregnancy sequelae.</p> ]]></description>  
<dc:creator>Anthony A. Azenabor, Patrick Kennedy, Salvatore Balistreri</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>223</prism:startingPage> 
<prism:endingPage>231</prism:endingPage> 
<pubDate>2007-9-6</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0216.htm</link> 
<title>Association between vitamin D receptor gene haplotypes and chronic periodontitis among Japanese men</title> 
<description><![CDATA[ <p><b>Background:</b> The vitamin D receptor (VDR) is involved in a variety of biological processes, such as bone metabolism and modulation of the immune response. Recent findings suggest that the pathway involving bone mineral density-mediated effects is important for the development of periodontitis, but their effects of combined VDR gene polymorphisms have not been confirmed on periodontitis. We assessed the relationship between <i>Apa</i>I, <i>Bsm</i>I, and <i>Fok</i>I VDR polymorphisms and the risk of severe chronic periodontitis among Japanese adult men.</p> <p><b>Materials and Methods:</b> In a cross-sectional study, we examined 97 unrelated healthy Japanese men (mean age: 45.6 years, range: 22-59). A clinical examination was performed at a worksite health checkup, and information was obtained using a self-reported questionnaire. DNA was extracted from whole blood, and the VDR <i>Apa</i>I, <i>Bsm</i>I, and <i>Fok</i>I polymorphisms were genotyped using polymerase chain reaction.</p> <p><b>Results:</b> F-carriers of <i>Fok</i>I VDR polymorphisms were less likely to develop severe chronic periodontitis than non-F-carriers (p = 0.09). The <i>Apa</i>I and <i>Bsm</i>I VDR polymorphisms did not show significant differences in the alleles or genotypes between the subjects with or without severe chronic periodontitis. The haplotype analysis of the three combined VDR polymorphisms revealed that the Abf homozygote had a notably higher prevalence of severe chronic periodontitis than the others, and adjustments for age, smoking status, number of teeth present, and prevalence of diabetes did not change this association (OR = 7.5; 95% CI = 1.6-34.4; p = 0.01).</p> <p><b>Conclusion:</b> The VDR haplotype constructed from the <i>Apa</i>I, <i>Bsm</i>I, and <i>Fok</i>I polymorphisms is related to the risk of severe chronic periodontitis in Japanese men.</p> ]]></description>  
<dc:creator>Mariko Naito, Koichi Miyaki, Toru Naito, Ling Zhang, Keika Hoshi, Asako Hara, Katsunori Masaki, Shugo Tohyama, Masaaki Muramatsu, Nobuyuki Hamajima, Takeo Nakayama</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>216</prism:startingPage> 
<prism:endingPage>222</prism:endingPage> 
<pubDate>2007-8-22</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0209.htm</link> 
<title>Inhibition by Natural Dietary Substances of Gastrointestinal Absorption of Starch and Sucrose in Rats 2. Subchronic Studies</title> 
<description><![CDATA[ <p>Acute oral consumption of various natural inhibitors of amylase (bean and hibiscus extracts) and sucrase (L-arabinose) reduce absorption of starch and sucrose respectively in rats and pigs measured by lessened appearance of circulating glucose levels. The present subchronic study was designed to determine whether these selected inhibitors of gastrointestinal starch and sucrose absorption (so-called &#8220;carb blockers&#8221;) remain effective with continued use and to assess their metabolic influences after prolonged intake. Sprague-Dawley rats were gavaged twice daily over nine weeks with either water or an equal volume of water containing a formula that included bean and hibiscus extracts and L-arabinose. To estimate CHO absorption, control and treated Sprague-Dawley rats were gavaged with either water alone or an equal volume of water containing glucose, rice starch, sucrose, or combined rice starch and sucrose. Circulating glucose was measured at timed intervals over four hours. The ability to decrease starch and sucrose absorption use. No toxic effects (hepatic, renal, hematologic) were evident. Blood chemistries revealed significantly lower circulating glucose levels and a trend toward decreased HbA1C in the nondiabetic rats receiving the natural formulation compared to control. Subchronic administration of enzyme inhibitors was also associated with many metabolic changes including lowered systolic blood pressure and altered fluid-electrolyte balance. We postulate that proper intake of natural amylase and sucrase inhibitors may be useful in the prevention and treatment of many chronic disorders associated with perturbations in glucose-insulin homeostasis secondary to the rapid absorption of refined CHO.</p> ]]></description>  
<dc:creator>Harry G. Preuss, Bobby Echard, Debasis Bagchi, Sidney Stohs</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>209</prism:startingPage> 
<prism:endingPage>215</prism:endingPage> 
<pubDate>2007-8-10</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0203.htm</link> 
<title>In vivo bactericidal activities of Japanese rice-fluid against H. pylori in a Mongolian gerbil model</title> 
<description><![CDATA[ <p>Purpose: The antibiotic effect of rice-fluid on <i>Helicobacter pylori </i>infection was investigated using a Mongolian gerbil model.</p> <p>Methods: Gerbils were divided into four groups: <i>H. pylori</i> -infected, rice-fluid-treated animals (group A); <i>H. pylori</i> -infected, untreated animals (group B); uninfected, rice-fluid-treated animals (group C); and uninfected, untreated animals (group D). Group A and B animals were killed 14 weeks after <i>H. pylori</i> infection and group C and D animals were killed at the same age. The stomachs were examined for histology, 5'-bromo-2'-deoxyuridine (BrdU) labeling, and the bacterial burden. Serum anti-<i>H. pylori</i> antibody titers were also tested.</p> <p>Results: The positive incidence of <i>H. pylori</i> -culture was 25 and 84 % in groups A and B, respectively (p&#60;0.01). Both the degree of inflammation and the BrdU labeling index in group A were significantly lower than those in group B.</p> <p>Conclusions: Rice-fluid showed an antibiotic effect on <i>H. pylori</i> and an anti-inflammatory effect on the <i>H. pylori</i> -associated gastritis.</p> ]]></description>  
<dc:creator>Satoshi Ishizone, Fukuto Maruta, Kazufumi Suzuki, Shinichi Miyagawa, Masahiko Takeuchi, Kiyomi Kanaya, Kozue Oana, Masayoshi Hayama, Yoshiyuki Kawakami, Hiroyoshi Ota</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>203</prism:startingPage> 
<prism:endingPage>208</prism:endingPage> 
<pubDate>2007-8-10</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0196.htm</link> 
<title>Inhibition by Natural Dietary Substances of Gastrointestinal Absorption of Starch and Sucrose in Rats and Pigs: 1. Acute Studies</title> 
<description><![CDATA[ <p>Rapid gastrointestinal absorption of refined carbohydrates (CHO) is linked to perturbed glucose-insulin metabolism that is, in turn, associated with many chronic health disorders. We assessed the ability of various natural substances, commonly referred to as &#8220;CHO blockers,&#8221; to influence starch and sucrose absorption <i>in vivo</i> in ninety-six rats and two pigs. These natural enzyme inhibitors of amylase/sucrase reportedly lessen breakdown of starches and sucrose in the gastrointestinal tract, limiting their absorption. To estimate absorption, groups of nine SD rats were gavaged with water or water plus rice starch and/or sucrose; and circulating glucose was measured at timed intervals thereafter. For each variation in the protocol a total of at least nine different rats were studied with an equal number of internal controls on three different occasions. The pigs rapidly drank CHO and inhibitors in their drinking water. In rats, glucose elevations above baseline over four hours following rice starch challenge as estimated by area-under-curve (AUC) were 40%, 27%, and 85% of their internal control after ingesting bean extract, hibiscus extract, and l-arabinose respectively in addition to the rice starch. The former two were significantly different from control. L-Arabinose virtually eliminated the rising circulating glucose levels after sucrose challenge, whereas hibiscus and bean extracts were associated with lesser decreases than l-arabinose that were still significantly lower than control. The glucose elevations above baseline over four hours in rats receiving sucrose (AUC) were 51%, 43% and 2% of control for bean extract, hibiscus extract, and L-arabinose, respectively. Evidence for dose-response of bean and hibiscus extracts is reported. Giving the natural substances minus CHO challenge caused no significant changes in circulating glucose concentrations, indicating no major effects on overall metabolism. A formula combining these natural products significantly decreased both starch and sucrose absorption, even when the CHO were given simultaneously. These results support the hypothesis that the enzyme inhibitors examined here at reasonable doses can safely lower the glycemic loads starch and sucrose.</p> ]]></description>  
<dc:creator>Harry G. Preuss, Bobby Echard, Debasis Bagchi, Sidney Stohs</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>196</prism:startingPage> 
<prism:endingPage>202</prism:endingPage> 
<pubDate>2007-8-6</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0190.htm</link> 
<title>Effect of 1,25-dihydroxy-vitamin D3 in experimental sepsis</title> 
<description><![CDATA[ <p><i>Background:</i> In addition to the regulation of calcium homeostasis, vitamin D affects the cellular immune system, targets the TNF-&#945; pathway and increases vasoconstrictor response to angiotensin II. We therefore examined the effect of 1,25-dihydroxy-vitamin D<sub>3</sub> on coagulation and organ failure in experimental sepsis in the rat.</p> <p><i>Methods:</i> Three series of placebo-controlled studies were conducted. All rats were pre-treated with daily SC injections of 1,25-dihydroxy-vitamin D<sub>3</sub> 100 ng/kg or placebo vehicle for 3 days. In study 1, sepsis was accomplished by abdominal surgery comprising a coecal ligation and puncture with a 1,2 mm needle, or sham surgery. In study 2, the rats had a single IP injection of lipopolysaccharide from E. Coli 0111:B4 (LPS) 8 mg/kg, or placebo. In study 3, an hour-long IV infusion of LPS 7 mg/kg, or placebo was given.</p> <p><i>Results:</i> All three models of sepsis showed significant effects on coagulation and liver function with reduced thrombocyte count and prothrombin time together with elevated ALT and bilirubin (p&#60;0.05) as compared to controls. In study 1, the vitamin D treated rats maintained normal platelet count, whereas the vehicle treated rats showed a significant reduction (p&#60;0.05). This effect of vitamin D on platelets was not found in the LPS-treated groups. We found no significant differences between vitamin D and placebo-treated rats with regards to liver function.</p> <p><i>Conclusion: </i>The present data suggest a positive modulating effect of 1,25-dihydroxy-vitamin D<sub>3</sub> supplementation on sepsis-induced coagulation disturbances in the coecal ligation and puncture model. No such effect was found in LPS-induced sepsis.</p> ]]></description>  
<dc:creator>S&#248;ren M&#248;ller, Finn Laigaard, Klaus Olgaard, Claus Hemmingsen</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>190</prism:startingPage> 
<prism:endingPage>195</prism:endingPage> 
<pubDate>2007-7-10</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0179.htm</link> 
<title>The Geography of Chronic Obstructive Pulmonary Disease Across Time: California in 1993 and 1999</title> 
<description><![CDATA[ <p>We investigated changes in the geography of Chronic Obstructuve Pulmonary Disease (COPD) hospitalization charges in California over the period of 1993 and 1999. There is little information available at less than the county level for this increasingly costly disease in California. We found, using a uniform grid unit method, (4X4 and 16X16 mile urban and rural grids respectively, using zip codes as the base source for information) positive relationships between COPD charges and age, percentage Hispanics, and number of tobacco outlets. Further, inverse relationships were found between the incidence of COPD charges and income level and the percentage of the population with undergraduate degrees. When examining &#8220;hotspot&#8221; grid units, we found that COPD was clearly associated with minority/immigrant status and depressed socio-economic measures, suggesting the need for better smoking interventions among persons of color and the poor. In summary, the Los Angeles area had a marked increase in hotspots both in 1993 and 1999, and also experienced a significant increase in COPD hospitalization charges between 1993 and 1999. Transforming zip code level data into a uniform grid allows for relatively simple comparisons across time, without such a transformation, such temporal comparisons are extremely difficult to implement. This more, &#8220;fine grained&#8221; geographical analysis allows public health planners a better platform than is typically available to assess changes in COPD.</p> ]]></description>  
<dc:creator>Robert Lipton, Anirudhha Banerjee</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>4</prism:number> 
<prism:startingPage>179</prism:startingPage> 
<prism:endingPage>189</prism:endingPage> 
<pubDate>2007-6-28</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0174.htm</link> 
<title>Evidence-Based Dentistry: What's New?</title> 
<description><![CDATA[ <p>The importance of evidence for every branch of medicine in teaching in order to orient the practitioners among the great amount of most actual scientific information's, and to support clinical decisions, is well established in health care, including dentistry.</p> <p>The practice of evidence-based medicine is a process of lifelong, self-directed, problem-based learning which leads to the need for clinically important information about diagnosis, prognosis, therapy and other clinical and health care issues. Nowadays the practice of dentistry is becoming more complex and challenging because of the continually changing in dental materials and equipments, an increasingly litigious society, an increase in the emphasis of continuing professional development, the information explosion and the consumer movement associated with advances on the Internet.</p> <p>The need for reliable information and the electronic revolution have come together to allow the &#8220;paradigm shift&#8221; towards evidence-based health care. Recent years have seen an increase in the importance of evidence-based dentistry, aiming to reduce to the maximum the gap between clinical research and real world dental practice. Aim of evidence-based practice is the systematic literature review, which synthesizes the best evidences and provides the basis for clinical practice guidelines. These practice guidelines give a brief review of what evidence-based dentistry is and how to use it.</p> ]]></description>  
<dc:creator>A. Ballini, S. Capodiferro, M. Toia, S. Cantore, G. Favia, G. De Frenza, F.R. Grassi</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>174</prism:startingPage> 
<prism:endingPage>178</prism:endingPage> 
<pubDate>2007-6-6</pubDate>
<category>Review</category>
</item>

<item>
<link>http://www.medsci.org/v04p0164.htm</link> 
<title>Cancer control through principles of systems science, complexity, and chaos theory: A model</title> 
<description><![CDATA[ <p>Cancer is a significant medical and societal problem. This reality arises from the fact that an exponential and an unrestricted cellular growth destabilizes human body as a system. From this perspective, cancer is a manifestation of a system-in-failing.</p> <p>A model of normal and abnormal cell cycle oscillations has been developed incorporating systems science, complexity, and chaos theories. Using this model, cancer expresses a failing subsystem and is characterized by a positive exponential growth taking place in the outer edge of chaos. The overall survival of human body as a system is threatened. This model suggests, however, that cancer's exponential cellular growth and disorganized complexity could be controlled through the process of induction of differentiation of cancer stem cells into cells of low and basic functionality.</p> <p>This concept would imply reorientation of current treatment principles from cellular killing (cyto-toxic therapies) to cellular retraining (cyto-education).</p> ]]></description>  
<dc:creator>Ivo P. Janecka</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>164</prism:startingPage> 
<prism:endingPage>173</prism:endingPage> 
<pubDate>2007-6-5</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0159.htm</link> 
<title>Efficiency of vibration exercise for glycemic control in type 2 diabetes patients</title> 
<description><![CDATA[ <p>Although it is well documented that persons suffering from diabetes type 2 profit from muscular activities, just a negligible amount of patients take advantage of physical exercises. During the last decade, vibration exercise (VE) could be established as an effective measure to prevent muscular atrophy and osteoporosis with low expenditure of overall exercise-time. Unfortunately, little is known about the metabolic effects of VE. In the present study we compared VE with the influence of strength training and a control group (flexibility training) on glycemic control in type 2 diabetes patients. Forty adult non-insulin dependent patients participated in the intervention. Fasting glucose concentration, an oral glucose tolerance test (OGTT), haemoglobin A1c (HbA1c), the isometric maximal torque of quadriceps muscles, and endurance capacity were evaluated at baseline and after 12 weeks of training with three training sessions per week. The main findings are: Fasting glucose concentrations remind unchanged after training. The area under curve and maximal glucose concentration of OGTT were reduced in the vibration and strength training group. HbA1c values tended to decrease below baseline date in the vibration training group while it increased in the two other intervention groups. Theses findings suggest that vibration exercise may be an effective and low time consuming tool to enhance glycemic control in type 2 diabetes patients.</p> ]]></description>  
<dc:creator>Klaus Baum, Tim Votteler, J&#252;rgen Schiab</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>159</prism:startingPage> 
<prism:endingPage>163</prism:endingPage> 
<pubDate>2007-5-31</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0153.htm</link> 
<title>Self-reported sickness absence as a risk marker of future disability pension. Prospective findings from the DWECS/DREAM study 1990-2004</title> 
<description><![CDATA[ <p>Objectives: This prospective cohort study examines number of self-reported days of sickness absence as a risk marker for future disability pension among a representative sample of employees in Denmark 1990-2004.</p> <p>Material and methods: 4177 employees between 18 and 45 years were interviewed using a self-administered questionnaire in 1990 regarding sickness absence, age, gender, socioeconomic position, health behaviour, and physical and psychosocial work environment. They were followed for 168 months in a national disability pension register. Logistic regression analysis was performed in order to assess risk estimates for levels of absence and future disability pension.</p> <p>Results: During follow-up, a total of 140 persons (3.4%) received disability pension. Of these, 82 (58.6%) were women, 58 (41.4%) were men. There was a 2.5 fold risk of future disability pension for the part of the population reporting more than 6 days of sickness absence per annum at baseline, when taking into account gender, age, socioeconomic position, health behaviour, physical and psychosocial work environment.</p> <p>Conclusion: The findings suggest that information on self-reported days of sickness absence can be used to effectively identify &#8220;at risk&#8221; groups for disability pension.</p> ]]></description>  
<dc:creator>Merete Labriola, Thomas Lund</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>153</prism:startingPage> 
<prism:endingPage>158</prism:endingPage> 
<pubDate>2007-5-17</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0146.htm</link> 
<title>A Novel Variable Number of Tandem Repeat of the Natriuretic Peptide Precursor B gene's 5'-Flanking Region is Associated with Essential Hypertension among Japanese Females</title> 
<description><![CDATA[ <p>Background: Brain natriuretic peptide (BNP) acts primarily as a cardiac hormone; it is produced by the ventricle and has both vasodilatory and natriuretic actions. Therefore, the BNP gene is thought to be a candidate gene for essential hypertension (EH). The present study identified variants in the 5'-flanking region of natriuretic peptide precursor B (<i>NPPB</i>) gene and assessed the relationship between gene variants and EH.</p> <p>Methods: The polymerase chain reaction-single strand conformation polymorphism method and nucleotide sequencing were used to identify variants.</p> <p>Results: A novel variable number of tandem repeat (VNTR) polymorphism in the 5'-flanking region (-1241 nucleotides from the major transcriptional initiation site) was discovered. This VNTR polymorphism is a tandem repeat of the 4-nucleotide sequence TTTC. There were 8 alleles, ranging from 9-repeat to 19-repeat. An association study was done involving 317 EH patients and 262 age-matched normotensive (NT) subjects. The 11-repeat allele was the most frequent (88.2%); the 16-repeat allele was the second most frequent (10.5%) in the NT group. The observed and expected genotypes were in agreement with the predicted Hardy-Weinberg equilibrium values (P=0.972). Among females, the overall distribution of genotypes was significantly different between the EH and NT groups (p=0.039). The frequency of the 16-repeat allele was significantly lower in the female EH group (6.5%) than in the female NT group (12.2%, p=0.046).</p> <p>Conclusions: The 16-repeat allele of the VNTR in the 5'-flanking region of <i>NPPB</i> appears to be a useful genetic marker of EH in females.</p> ]]></description>  
<dc:creator>Kotoko Kosuge, Masayoshi Soma, Tomohiro Nakayama, Noriko Aoi, Mikano Sato, Yoichi Izumi, Koichi Matsumoto</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>146</prism:startingPage> 
<prism:endingPage>152</prism:endingPage> 
<pubDate>2007-5-16</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0140.htm</link> 
<title>BRCA1 May Modulate Neuronal Cell Cycle Re-Entry in Alzheimer Disease</title> 
<description><![CDATA[ <p>In Alzheimer disease, neuronal degeneration and the presence of neurofibrillary tangles correlate with the severity of cognitive decline. Neurofibrillary tangles contain the antigenic profile of many cell cycle markers, reflecting a re-entry into the cell cycle by affected neurons. However, while such a cell cycle re-entry phenotype is an early and consistent feature of Alzheimer disease, the mechanisms responsible for neuronal cell cycle are unclear. In this regard, given that a dysregulated cell cycle is a characteristic of cancer, we speculated that alterations in oncogenic proteins may play a role in neurodegeneration. To this end, in this study, we examined brain tissue from cases of Alzheimer disease for the presence of BRCA1, a known regulator of cell cycle, and found intense and specific localization of BRCA1 to neurofibrillary tangles, a hallmark lesion of the disease. Analysis of clinically normal aged brain tissue revealed systematically less BRCA1, and surprisingly in many cases with apparent phosphorylated tau-positive neurofibrillary tangles, BRCA1 was absent, yet BRCA1 was present in all cases of Alzheimer disease. These findings not only further define the cell cycle reentry phenotype in Alzheimer disease but also indicate that the neurofibrillary tangles which define Alzheimer disease may have a different genesis from the neurofibrillary tangles of normal aging.</p> ]]></description>  
<dc:creator>Teresa A. Evans, Arun K. Raina, Andr&#233; Delacourte, Olga Aprelikova, Hyoung-gon Lee, Xiongwei Zhu, George Perry, Mark A. Smith</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>140</prism:startingPage> 
<prism:endingPage>145</prism:endingPage> 
<pubDate>2007-5-12</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0131.htm</link> 
<title>Thioglycosides as inhibitors of hSGLT1 and hSGLT2: Potential therapeutic agents for the control of hyperglycemia in diabetes</title> 
<description><![CDATA[ <p>The treatment of diabetes has been mainly focused on maintaining normal blood glucose concentrations. Insulin and hypoglycemic agents have been used as standard therapeutic strategies. However, these are characterized by limited efficacy and adverse side effects, making the development of new therapeutic alternatives mandatory. Inhibition of glucose reabsorption in the kidney, mediated by SGLT1 or SGLT2, represents a promising therapeutic approach. Therefore, the aim of the present study was to evaluate the effect of thioglycosides on human SGLT1 and SGLT2. For this purpose, stably transfected Chinese hamster ovary (CHO) cells expressing human SGLT1 and SGLT2 were used. The inhibitory effect of thioglycosides was assessed in transport studies and membrane potential measurements, using &#945;-methyl-glucoside uptake and fluorescence resonance energy transfer, respectively. We found that some thioglycosides inhibited hSGLT more strongly than phlorizin. Specifically, thioglycoside I (phenyl-1'-thio-&#946;-D-glucopyranoside) inhibited hSGLT2 stronger than hSGLT1 and to a larger extent than phlorizin. Thioglycoside VII (2-hydroxymethyl-phenyl-1'-thio-&#946;-D-galacto-pyranoside) had a pronounced inhibitory effect on hSGLT1 but not on hSGLT2. Kinetic studies confirmed the inhibitory effect of these thioglycosides on hSGLT1 or hSGLT2, demonstrating competitive inhibition as the mechanism of action. Therefore, these thioglycosides represent promising therapeutic agents for the control of hyperglycemia in patients with diabetes.</p> ]]></description>  
<dc:creator>Francisco Castaneda, Antje Burse, Wilhelm Boland, Rolf K-H. Kinne</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>131</prism:startingPage> 
<prism:endingPage>139</prism:endingPage> 
<pubDate>2007-5-5</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0124.htm</link> 
<title>Relationships between free radical levels during carotid endarterectomy and markers of arteriosclerotic disease</title> 
<description><![CDATA[ <p><i>Background</i>: Free radical production is elevated in jugular venous blood emerging from the brain in conjunction with carotid endarterectomy. This study explores the relationships between markers for lesion progression in arteriosclerosis, production of radicals and clinical characteristics.</p> <p><i>Methods</i>: The radical production during carotid endarterectomy was studied in 13 patients with an ex vivo spin trap method using OXANOH as a spin trap. MCP-1, ICAM-1, MMP-9 and oxLDL were determined in venous blood samples before, during and after clamping of the carotid artery. Principal component analysis (PCA) as well as partial least square regression analysis (PLS) was applied to interpret the data.</p> <p><i>Results</i>: PCA and PLS analysis revealed that high values of MMP-9 and low values of ICAM-1 were associated with high radical production whereas MCP-1 and oxLDL were not correlated to radical production. MMP-9 was elevated at diabetes, high haemoglobin, high leucocyte counts and thrombocyte counts as well as at contralateral stenosis, whereas ICAM-1 showed reversed relationships to these clinical variables. MCP-1 increased during surgery.</p> <p><i>Conclusions</i>: The main finding in our study is that MMP-9 in plasma is asscociated with radical production during carotid endarterectomy, suggesting that this enzyme might be involved in the pathogenesis of brain damage in conjunction with ischaemia-reperfusion.</p> ]]></description>  
<dc:creator>Jagdish Gondalia, Bj&#246;rn Fagerberg, Johannes Hulthe, Lars Karlstr&#246;m, Ulf Nilsson, Susanna Waters, Olof Jonsson</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>3</prism:number> 
<prism:startingPage>124</prism:startingPage> 
<prism:endingPage>130</prism:endingPage> 
<pubDate>2007-4-14</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0115.htm</link> 
<title>The characterisation of mucin in a mature ovarian teratoma occurring in an eight year old patient</title> 
<description><![CDATA[ <p><b>Introduction:</b> The presence of MUC5AC (M1 antigen) and MUC6 have previously been found in ovarian mucinous cyst. We characterized the mucins in the crude mucus and tissue of a mature ovarian teratoma in an 8 year old girl. <b>Materials and Methods:</b> Mucins were purified from crude mucus by density gradient ultra-centrifugation in CsCl and analysed by gel-filtration and SDS-PAGE analysis. Mucin identification and expression was by western blotting and immunohistochemistry. <b>Results:</b> Histology showed a tumour with solid and cystic areas, with the cysts lined by colonic and respiratory mucosae. Equal volumes of 'sol' and 'gel' phases of approximately 10.0ml of crude mucus were obtained. Gel filtration and SDS-PAGE analyses suggested that the mucin was mainly of the large polymeric type which dissociated upon reduction of disulphide bonds with DTT. The colonic and respiratory epithelia predominantly expressed acidic mucin of the sialated and sulphated types respectively. MUC1 and MUC1c were expressed exclusively in respiratory epithelium, MUC2 and some MUC6 (focal) in the colonic tissue and MUC5AC in both tissues. Western blotting confirmed the presence of MUC2, MUC5AC and MUC5B in the secreted gel. Serine, threonine and proline made up the bulk of the amino acids in the sample. <b>Discussion:</b> Ovarian teratoma produced a highly viscous mucus secretion in which the mucin was largely polymeric and of the MUC2, MUC5AC and MUC5B type. The respiratory component of the teratoma expressed MUC1 and MUC1c and the colonic components of the teratoma expressed MUC2 and some MUC6. MUC5AC was expressed in both components.</p> ]]></description>  
<dc:creator>Anwar Suleman Mall, Marilyn Tyler, Zoe Lotz, Alan Davidson, Jerry Rodrigues, George van der Watt, Delawir Kahn, Dhirendra Govender</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>115</prism:startingPage> 
<prism:endingPage>123</prism:endingPage> 
<pubDate>2007-4-10</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0110.htm</link> 
<title>Childhood Febrile Seizures: Overview and Implications</title> 
<description><![CDATA[ <p>This article provides an overview of the latest knowledge and understanding of childhood febrile seizures. This review also discusses childhood febrile seizure occurrence, health services utilization and treatment costs. Parental reactions associated with its occurrence and how healthcare providers can assist parents with dealing effectively with this potentially frightening and anxiety-producing event are also discussed.</p> ]]></description>  
<dc:creator>Tonia Jones, Steven J. Jacobsen</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>110</prism:startingPage> 
<prism:endingPage>114</prism:endingPage> 
<pubDate>2007-4-7</pubDate>
<category>Review</category>
</item>

<item>
<link>http://www.medsci.org/v04p0105.htm</link> 
<title>Characterization of erythrovirus B19 genomes isolated in liver tissues from patients with fulminant hepatitis and biliary atresia who underwent liver transplantation</title> 
<description><![CDATA[ <p>Background: Fulminant hepatitis and biliary atresia are serious problems and their causes have not been explained well. We investigated whether or not erythrovirus B19 is a candidate etiologic agent in such liver disease patients who had undergone liver transplantation.</p> <p>Methods: Liver tissues from 47 patients consisted of 28 fulminant hepatitis and 19 biliary atresia were examined to detect B19 genes by PCR and further analyzed their genomic characterization.</p> <p>Results: B19 DNA was detected by nested PCR in 10 of 28 cases (35.7%) livers in the fulminant hepatitis group and 7 of 19 (36.8%) livers in the biliary atresia group, respectively (statistically not significant). Importantly, among the 8 hepatic B19 DNA-positive patients who had paired samples of liver and serum, the serum B19 genome was detectable in only one case. B19 mRNA was identified in all of 10 fulminant hepatitis cases with hepatic B19 DNA, but only 1 out of 7 (14.3%) cases in biliary atresia tested. Furthermore, we obtained ten isolates having the B19 genome with nearly full-length sequences. Interestingly, phylogenetic analysis based on the NS1 gene revealed three different clusters: two for isolates from fulminant hepatitis and the other for isolates from biliary atresia.</p> <p>Conclusions: Our results presented here suggested that B19 may be an etiologic agent of fulminant hepatitis.</p> ]]></description>  
<dc:creator>Kenji Abe, Tetsuya Kiuchi, Koichi Tanaka, Yoshihiro Edamoto, Naoto Aiba, Tetsutaro Sata</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>105</prism:startingPage> 
<prism:endingPage>109</prism:endingPage> 
<pubDate>2007-4-5</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0098.htm</link> 
<title>No associations of Helicobacter pylori infection and gastric atrophy with plasma total homocysteine in Japanese</title> 
<description><![CDATA[ <p>Recent studies have suggested that <i>Helicobacter pylori</i> (<i>H. pylori</i>) infection might be a risk factor for atherosclerosis. Since the bacterium has not been isolated from atherosclerotic lesions, a direct role in atherogenesis is not plausible. We examined associations of plasma total homocysteine (tHcy) and serum folate, independent risk factors for atherosclerosis, with <i>H. pylori </i>infection and subsequent gastric atrophy among 174 patients (78 males and 96 females) aged 20 to 73 years, who visited an <i>H. pylori</i> eradication clinic of Nagoya University from July 2004 to October 2005. Polymorphism genotyping was conducted for <i>methylenetetrahydrofolate reductase</i> (<i>MTHFR</i>) C677T and <i>thymidylate synthase</i> (<i>TS</i>) 28-bp tandem repeats by PCR with confronting two-pair primers and PCR, respectively. <i>H. pylori</i> infection and gastric atrophy were not significantly associated with hyperhomocysteinemia (tHcy &#8805; 12 nmol/ml), when adjusted by sex, age, smoking, alcohol, and genotypes of <i>MTHFR</i> and <i>TS</i>. The adjusted odds ratio of gastric atrophy for low folate level (&#8804; 4mg/ml) was 0.21 (95% confidence interval = 0.05-0.78). The associations of tHcy with serum folate and <i>MTHFR</i> genotype were clearly observed in this dataset. The present study demonstrated that folate and <i>MTHFR</i> genotype were the deterministic factors of plasma tHcy, but not <i>H. pylori</i> infection and subsequent gastric atrophy, indicating that even if <i>H. pylori</i> infection influences the risk of atherosclerosis, the influence may not be through the elevation of homocysteine.</p> ]]></description>  
<dc:creator>Simon Itou, Yasuyuki Goto, Takaaki Kondo, Kazuko Nishio, Sayo Kawai, Yoshiko Ishida, Mariko Naito, Nobuyuki Hamajima</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>98</prism:startingPage> 
<prism:endingPage>104</prism:endingPage> 
<pubDate>2007-3-14</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0094.htm</link> 
<title>Alterations in Arterial Blood Parameters in Patients with Liver Cirrhosis and Ascites</title> 
<description><![CDATA[ <p>In cirrhotic patients, in addition to hepatocytes and Kuppfer cells dysfunction circulatory anatomic shunt and ventilation/perfusion (V<sub>A</sub>/ Q) ratio abnormalities can induce decrease in partial pressure of oxygen in arterial blood (PaO<sub>2</sub>), in oxygen saturation of hemoglobin (SaO<sub>2</sub>) as well as various acid-base disturbances. We studied 49 cases of liver cirrhosis (LC) with ascites compared to 50 normal controls. Causes were: posthepatic 37 (75.51%), alcoholic 7 (14.24%), cardiac 2 (4.08%), and cryptogenic 3 (6.12%). Complications were: upper gastrointestinal bleeding 24 (48.97), hepatic encephalopathy 20 (40.81%), gastritis 28 (57.14%), hepatoma 5 (10.2%), renal hepatic syndrome 2 (4.01%), HbsAg (+) 24 (48.97%), and hepatic pleural effusions 7 (14.28%). Average PaO<sub>2</sub> and SaO<sub>2</sub> were 75.2 mmHg and 94.5 mmHg, respectively, compared to 94.2 mmHg and 97.1 mmHg of the control group, respectively (p value in both PaO<sub>2</sub> and SaO<sub>2 </sub>was p&#60;0.01). Respiratory alkalosis, metabolic alkalosis, metabolic acidosis, respiratory acidosis and metabolic acidosis with respiratory alkalosis were acid-base disturbances observed. In conclusion, portopulmonary shunt, intrapulmonary arteriovenous shunt and V<sub>A</sub>/Q inequality can induce a decrease in PaO<sub>2</sub> and SaO<sub>2</sub> as well as various acid-base disturbances. As a result, pulmonary resistance is impaired and patients more likely succumb to infections and adult respiratory distress syndrome.</p> ]]></description>  
<dc:creator>Konstantinos Charalabopoulos, Dimitrios Peschos, Leonidas Zoganas, George Bablekos, Christos Golias, Alexander Charalabopoulos, Dimitrios Stagikas, Angi Karakosta, Athanasios Papathanasopoulos, George Karachalios, Anna Batistatou</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>94</prism:startingPage> 
<prism:endingPage>97</prism:endingPage> 
<pubDate>2007-3-6</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0083.htm</link> 
<title>Rasburicase represents a new tool for hyperuricemia in tumor lysis syndrome and in gout</title> 
<description><![CDATA[ <p>Hyperuricemia is a feature of several pathologies and requires an appropriate and often early treatment, owing to the severe consequences that it may cause. A rapid and massive raise of uric acid, during tumor lysis syndrome (TLS), and also a lower and chronic hyperuricemia, as in gout, mainly damage the kidney. To prevent or treat these consequences, a new therapeutic option is represented by rasburicase, a recombinant form of an enzyme, urate oxidase. This enzyme converts hypoxanthine and xanthine into allantoin, a more soluble molecule, easily cleared by kidney. The several types of urate oxidase have followed each other, with progressive reduction of adverse reactions. The most important among them are allergenicity and the development of antibodies which compromise their effectiveness. Nevertheless, a limit of rasburicase's use remains its cost, which obliges to a judicious choice to prevent TLS in high risk patients with cancer and in case of allergy or impossibility to take allopurinol orally both in TLS and in gout. A large body of evidence confirms the efficacy and safety of rasburicase, even in comparison to the standard drugs used in the aforementioned pathologies.</p> ]]></description>  
<dc:creator>Lisa Cammalleri, Mariano Malaguarnera</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>83</prism:startingPage> 
<prism:endingPage>93</prism:endingPage> 
<pubDate>2007-3-2</pubDate>
<category>Review</category>
</item>

<item>
<link>http://www.medsci.org/v04p0072.htm</link> 
<title>Role of Dietary Soy Protein in Obesity</title> 
<description><![CDATA[ <p>Soy protein is an important component of soybeans and provides an abundant source of dietary protein. Among the dietary proteins, soy protein is considered a complete protein in that it contains ample amounts of all the essential amino acids plus several other macronutrients with a nutritional value roughly equivalent to that of animal protein of high biological value. Soy protein is unique among the plant-based proteins because it is associated with isoflavones, a group of compounds with a variety of biological properties that may potentially benefit human health. An increasing body of literature suggests that soy protein and its isoflavones may have a beneficial role in obesity. Several nutritional intervention studies in animals and humans indicate that consumption of soy protein reduces body weight and fat mass in addition to lowering plasma cholesterol and triglycerides. In animal models of obesity, soy protein ingestion limits or reduces body fat accumulation and improves insulin resistance, the hallmark of human obesity. In obese humans, dietary soy protein also reduces body weight and body fat mass in addition to reducing plasma lipids. Several potential mechanisms whereby soy protein may improve insulin resistance and lower body fat and blood lipids are discussed and include a wide spectrum of biochemical and molecular activities that favorably affect fatty acid metabolism and cholesterol homeostasis. The biologic actions of certain constituents of soy protein, particularly conglycinin, soyasaponins, phospholipids, and isoflavones, that relate to obesity are also discussed. In addition, the potential of soy protein in causing food allergy in humans is briefly discussed.</p> ]]></description>  
<dc:creator>Manuel T. Velasquez, Sam J. Bhathena</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>72</prism:startingPage> 
<prism:endingPage>82</prism:endingPage> 
<pubDate>2007-2-26</pubDate>
<category>Review</category>
</item>

<item>
<link>http://www.medsci.org/v04p0059.htm</link> 
<title>Genetic polymorphisms in the nucleotide excision repair pathway and lung cancer risk: A meta-analysis</title> 
<description><![CDATA[ <p>Various DNA alterations can be caused by exposure to environmental and endogenous carcinogens. Most of these alterations, if not repaired, can result in genetic instability, mutagenesis and cell death. DNA repair mechanisms are important for maintaining DNA integrity and preventing carcinogenesis. Recent lung cancer studies have focused on identifying the effects of single nucleotide polymorphisms (SNPs) in candidate genes, among which DNA repair genes are increasingly being studied. Genetic variations in DNA repair genes are thought to modulate DNA repair capacity and are suggested to be related to lung cancer risk. We identified a sufficient number of epidemiologic studies on lung cancer to conduct a meta-analysis for genetic polymorphisms in nucleotide excision repair pathway genes, focusing on xeroderma pigmentosum group A (XPA), excision repair cross complementing group 1 (ERCC1), ERCC2/XPD, ERCC4/XPF and ERCC5/XPG. We found an increased risk of lung cancer among subjects carrying the <i>ERCC2</i> 751Gln/Gln genotype (odds ratio (OR) = 1.30, 95% confidence interval (CI) = 1.14 - 1.49). We found a protective effect of the <i>XPA</i> 23G/G genotype (OR = 0.75, 95% CI = 0.59 - 0.95). Considering the data available, it can be conjectured that if there is any risk association between a single SNP and lung cancer, the risk fluctuation will probably be minimal. Advances in the identification of new polymorphisms and in high-throughput genotyping techniques will facilitate the analysis of multiple genes in multiple DNA repair pathways. Therefore, it is likely that the defining feature of future epidemiologic studies will be the simultaneous analysis of large samples.</p> ]]></description>  
<dc:creator>Chikako Kiyohara, Kouichi Yoshimasu</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>2</prism:number> 
<prism:startingPage>59</prism:startingPage> 
<prism:endingPage>71</prism:endingPage> 
<pubDate>2007-2-1</pubDate>
<category>Review</category>
</item>

<item>
<link>http://www.medsci.org/v04p0053.htm</link> 
<title>Does Flavanol Intake Influence Mortality from Nitric Oxide-Dependent Processes? Ischemic Heart Disease, Stroke, Diabetes Mellitus, and Cancer in Panama</title> 
<description><![CDATA[ <p>Substantial data suggest that flavonoid-rich food could help prevent cardiovascular disease and cancer. Cocoa is the richest source of flavonoids, but current processing reduces the content substantially. The Kuna living in the San Blas drink a flavanol-rich cocoa as their main beverage, contributing more than 900 mg/day and thus probably have the most flavonoid-rich diet of any population. We used diagnosis on death certificates to compare cause-specific death rates from year 2000 to 2004 in mainland and the San Blas islands where only Kuna live. Our hypothesis was that if the high flavanoid intake and consequent nitric oxide system activation were important the result would be a reduction in the frequency of ischemic heart disease, stroke, diabetes mellitus, and cancer &#8211; all nitric oxide sensitive processes. There were 77,375 deaths in mainland Panama and 558 deaths in the San Blas. In mainland Panama, as anticipated, cardiovascular disease was the leading cause of death (83.4 &#177; 0.70 age adjusted deaths/100,000) and cancer was second (68.4 &#177; 1.6). In contrast, the rate of CVD and cancer among island-dwelling Kuna was much lower (9.2 &#177; 3.1) and (4.4 &#177; 4.4) respectively. Similarly deaths due to diabetes mellitus were much more common in the mainland (24.1 &#177; 0.74) than in the San Blas (6.6 &#177; 1.94). This comparatively lower risk among Kuna in the San Blas from the most common causes of morbidity and mortality in much of the world, possibly reflects a very high flavanol intake and sustained nitric oxide synthesis activation. However, there are many risk factors and an observational study cannot provide definitive evidence.</p> ]]></description>  
<dc:creator>Vicente Bayard, Fermina Chamorro, Jorge Motta, Norman K. Hollenberg</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>53</prism:startingPage> 
<prism:endingPage>58</prism:endingPage> 
<pubDate>2007-1-27</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0045.htm</link> 
<title>A Dietary Supplement Containing Standardized Phaseolus vulgaris Extract Influences Body Composition of Overweight Men and Women</title> 
<description><![CDATA[ <p><b>Background: </b>More than one billion human adults worldwide are overweight and, therefore, are at higher risk of developing cardiovascular diseases, diabetes, and a variety of other chronic perturbations. Many believe that use of natural dietary supplements could aid in the struggle against obesity. So-called &#34;starch blockers&#34; are listed among natural weight loss supplements. Theoretically, they may promote weight loss by interfering with the breakdown of complex carbohydrates thereby reducing, or at least slowing, the digestive availability of carbohydrate-derived calories and/or by providing resistant starches to the lower gastrointestinal tract.</p> <p><b>Aims: </b>The present research study examines a dietary supplement containing 445 mg of <i>Phaseolus vulgaris</i> extract derived from the white kidney bean, previously shown to inhibit the activity of the digestive enzyme alpha amylase, on body composition of overweight human subjects.</p> <p><b>Methods: </b>A randomized, double-blinded, placebo-controlled study was conducted on 60 pre-selected, slightly overweight volunteers, whose weight had been essentially stable for at least six months. The volunteers were divided into two groups, homogeneous for age, gender, and body weight. The test product containing <i>Phaseolus vulgaris</i> extract and the placebo were taken one tablet per day for 30 consecutive days before a main meal rich in carbohydrates. Each subject's body weight, fat and non-fat mass, skin fold thickness, and waist/hip/thigh circumferences were measured.</p> <p><b>Results: </b>After 30 days, subjects receiving <i>Phaseolus vulgaris</i> extract with a carbohydrate-rich, 2000- to 2200-calorie diet had significantly (p&#60;0.001) greater reduction of body weight, BMI, fat mass, adipose tissue thickness, and waist,/hip/ thigh circumferences while maintaining lean body mass compared to subjects receiving placebo.</p> <p><b>Conclusion: </b>The results indicate that <i>Phaseolus vulgaris </i>extract produces significant decrements in body weight and suggest decrements in fat mass in the face of maintained lean body mass.</p> ]]></description>  
<dc:creator>Leonardo Celleno, Maria Vittoria Tolaini, Alessandra D'Amore, Nicholas V. Perricone, Harry G. Preuss</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>45</prism:startingPage> 
<prism:endingPage>52</prism:endingPage> 
<pubDate>2007-1-24</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0036.htm</link> 
<title>Proteomic analysis of mechanisms of hypoxia-induced apoptosis in trophoblastic cells</title> 
<description><![CDATA[ <p>Preeclampsia is often accompanied by hypoxia of the placenta and this condition induces apoptosis in trophoblastic cells. The aim of this study was to characterize global changes of apoptosis-related proteins induced by hypoxia in trophoblastic cells so as to clarify the mechanism of hypoxia-induced apoptosis by using the PoweBlot, an antibody-based Western array. Human choriocarcinoma cell line JAR was cultured for 24 hours under aerobic and hypoxic conditions. Hypoxia induced apoptosis accompanied by increased expression of Bcl-x, Caspase-3 and -9, Hsp70, PTEN, and Bag-1. Bad, pan-JNK/SAPK-1, Bcl-2, Bid, and Caspase-8 showed decreased expression. Hypoxia-induced apoptosis was increased with the transfection of a<i> bag-1</i> antisense oligonucleotide. The <i>bag-1</i> antisense oligonucleotide affected the expression of Bid, Bad, Bcl-2, JNK, and phosphorylated JNK, although expression of PTEN and Bcl-X did not change. Bag-1 may inhibit apoptosis by suppressing the expression of Bid and Bad. It may also enhance apoptosis by inhibiting the expression of Bcl-2 and by modulating phosphorylation of JNK. Both mitochondrial and stress-activated apoptosis pathways played important roles in the hypoxia induced cell death of trophoblastic cells. These findings will contribute to establish new approach to detect hypoxic stress of the placenta, which leads to preeclampsia and other hypoxia-related obstetrics complications.</p> ]]></description>  
<dc:creator>Shin-ichi Ishioka, Yoshiaki Ezaka, Kota Umemura, Takuhiro Hayashi, Toshiaki Endo, Tsuyoshi Saito</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>36</prism:startingPage> 
<prism:endingPage>44</prism:endingPage> 
<pubDate>2006-12-29</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0028.htm</link> 
<title>Functional genomics analysis of low concentration of ethanol in human hepatocellular carcinoma (HepG2) cells. Role of genes involved in transcriptional and translational processes</title> 
<description><![CDATA[ <p>We previously found that ethanol at millimolar level (1 mM) activates the expression of transcription factors with subsequent regulation of apoptotic genes in human hepatocellular carcinoma (HCC) HepG2 cells. However, the role of ethanol on the expression of genes implicated in transcriptional and translational processes remains unknown. Therefore, the aim of this study was to characterize the effect of low concentration of ethanol on gene expression profiling in HepG2 cells using cDNA microarrays with especial interest in genes with transcriptional and translational function. The gene expression pattern observed in the ethanol-treated HepG2 cells revealed a relatively similar pattern to that found in the untreated control cells. The pairwise comparison analysis demonstrated four significantly up-regulated (<i>COBRA1, ITGB4</i>,<i> STAU2</i>, and <i>HMGN3</i>) genes and one down-regulated (<i>ANK3</i>) gene. All these genes exert their function on transcriptional and translational processes and until now none of these genes have been associated with ethanol. This functional genomic analysis demonstrates the reported interaction between ethanol and ethanol-regulated genes. Moreover, it confirms the relationship between ethanol-regulated genes and various signaling pathways associated with ethanol-induced apoptosis. The data presented in this study represents an important contribution toward the understanding of the molecular mechanisms of ethanol at low concentration in HepG2 cells, a HCC-derived cell line.</p> ]]></description>  
<dc:creator>Francisco Castaneda, Sigrid Rosin-Steiner, Klaus Jung</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>28</prism:startingPage> 
<prism:endingPage>35</prism:endingPage> 
<pubDate>2006-12-21</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0019.htm</link> 
<title>Strength training improves muscle quality and insulin sensitivity in Hispanic older adults with type 2 diabetes</title> 
<description><![CDATA[ <p>Hispanics are at increased risk of morbidity and mortality due to their high prevalence of diabetes and poor glycemic control. Strength training is the most effective lifestyle intervention to increase muscle mass but limited data is available in older adults with diabetes. We determined the influence of strength training on muscle quality (strength per unit of muscle mass), skeletal muscle fiber hypertrophy, and metabolic control including insulin resistance (Homeostasis Model Assessment &#8211;HOMA-IR), C-Reactive Protein (CRP), adiponectin and Free Fatty Acid (FFA) levels in Hispanic older adults. Sixty-two community-dwelling Hispanics (&#62;55 y) with type 2 diabetes were randomized to 16 weeks of strength training plus standard care (ST group) or standard care alone (CON group). Skeletal muscle biopsies and biochemical measures were taken at baseline and 16 weeks. The ST group show improved muscle quality (mean&#177;SE: 28&#177;3) vs CON (-4&#177;2, p&#60;0.001) and increased type I (860&#177;252&#181;m<sup>2</sup>) and type II fiber cross-sectional area (720&#177;285&#181;m<sup>2</sup>) compared to CON (type I: -164&#177;290&#181;m<sup>2</sup>, p=0.04; and type II: -130&#177;336&#181;m<sup>2</sup>, p=0.04). This was accompanied by reduced insulin resistance [ST: median (interquartile range) -0.7(3.6) vs CON: 0.8(3.8), p=0.05]; FFA (ST: -84&#177;30&#181;mol/L vs CON: 149&#177;48&#181;mol/L, p=0.02); and CRP [ST: -1.3(2.9)mg/L vs CON: 0.4(2.3)mg/L, p=0.05]. Serum adiponectin increased with ST [1.0(1.8)&#181;g/mL] compared to CON [-1.2(2.2)&#181;g/mL, p&#60;0.001]. Strength training improved muscle quality and whole-body insulin sensitivity. Decreased inflammation and increased adiponectin levels were related with improved metabolic control. Further studies are needed to understand the mechanisms associated with these findings. However, these data show that strength training is an exercise modality to consider as an adjunct of standard of care in high risk populations with type 2 diabetes.</p> ]]></description>  
<dc:creator>Naomi Brooks, Jennifer E. Layne, Patricia L. Gordon, Ronenn Roubenoff, Miriam E. Nelson, Carmen Castaneda-Sceppa</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>19</prism:startingPage> 
<prism:endingPage>27</prism:endingPage> 
<pubDate>2006-12-18</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0013.htm</link> 
<title>HIV DNA and Dementia in Treatment-Na&#239;ve HIV-1-Infected Individuals in Bangkok, Thailand</title> 
<description><![CDATA[ <p>High HIV-1 DNA (HIV DNA) levels in peripheral blood mononuclear cells (PBMC) correlate with HIV-1-associated dementia (HAD) in patients on highly active antiretroviral therapy (HAART). If this relationship also exists among HAART-na&#239;ve patients, then HIV DNA may be implicated in the pathogenesis of HAD. In this study, we evaluated the relationship between HIV DNA and cognition in subjects na&#239;ve to HAART in a neuro AIDS cohort in Bangkok, Thailand. Subjects with and without HAD were recruited and matched for age, gender, education, and CD4 cell count. PBMC and cellular subsets were analyzed for HIV DNA using real-time PCR. The median log<sub>10</sub> HIV DNA copies per 10<sup>6</sup> PBMC for subjects with HAD (n=15) was 4.27, which was higher than that found in subjects without dementia (ND; n=15), 2.28, <i>p</i>&#60;0.001. This finding was unchanged in a multivariate model adjusting for plasma HIV-1 RNA levels. From a small subset of individuals, in which adequate number of cells were available, more HIV DNA was in monocytes/macrophages from those with HAD compared to those with ND. These results are consistent with a previous report among HAART-experienced subjects, thus further implicating HIV DNA in the pathogenesis of HAD.</p> ]]></description>  
<dc:creator>Bruce Shiramizu, Silvia Ratto-Kim, Pasiri Sithinamsuwan, Samart Nidhinandana, Sataporn Thitivichianlert, George Watt, Mark deSouza, Thippawan Chuenchitra, Suchitra Sukwit, Suwicha Chitpatima, Kevin Robertson, Robert Paul, Cecilia Shikuma, Victor Valcour</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>13</prism:startingPage> 
<prism:endingPage>18</prism:endingPage> 
<pubDate>2006-12-6</pubDate>
<category>Short Research Communication</category>
</item>

<item>
<link>http://www.medsci.org/v04p0007.htm</link> 
<title>Low socio-economic status, smoking, mental stress and obesity predict obstructive symptoms in women, but only smoking also predicts subsequent experience of poor health</title> 
<description><![CDATA[ <p>This study was conducted among female subjects to assess the possible association between selected risk factors and lung function as well as airway symptoms in a 32-year perspective. The Prospective Population Study of Women was initiated in 1968-1969 in G&#246;teborg, Sweden (population about 450 000) with follow-ups in 1974-1975, 1980-1981, 1992-1993 and 2000-2001. Women born in 1930, representative of women of the same age in the general population in 1968, were selected. Initially, 372 participants were included in the cohort. In 2000-2001, 231 of these women (73%), now 70 years old, underwent lung function tests. The main outcome measures were lung function values, airway symptoms and health outcome in 2000-2001 in relation to self-reported exposures in 1968-1969 including smoking status. Smoking in 1968-1969 was associated with self-reported chronic bronchitis, obstructive symptoms and poor health 32 years later as well as lower lung function values, compared to non-smokers. Obesity, low socio-economic status and self-reported mental stress in 1968-1969 were associated with obstructive symptoms 32 years later. There are only a few longitudinal studies concerning women's health problems in this field and epidemiological studies of lung function impairment in women and risk factors in a long-term perspective are scarce. The results of the study suggest that life-style factors such as mental stress, obesity and smoking among women are related to airway symptoms and also quality of life many years later.</p> ]]></description>  
<dc:creator>J&#246;rgen Thorn, Cecilia Bj&#246;rkelund, Calle Bengtsson, Xinxin Guo, Lauren Lissner, Valter Sundh</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>7</prism:startingPage> 
<prism:endingPage>12</prism:endingPage> 
<pubDate>2006-11-3</pubDate>
<category>Research Paper</category>
</item>

<item>
<link>http://www.medsci.org/v04p0001.htm</link> 
<title>Grb2-associated binder 1 polymorphism was associated with the risk of Helicobactor pylori infection and gastric atrophy</title> 
<description><![CDATA[ <p><b>Background</b>: Various single nucleotide polymorphisms (SNPs) have explained the association between<i> Helicobacter pylori</i> (<i>H. pylori)</i> and gastric atrophy and cancer. This study investigated the associations of <i>Grb2 associated binder 1 </i>(<i>Gab1</i>) polymorphism and the combination of <i>PTPN11</i> gene encoding src homology 2 domain-containing protein tyrosine phosphatase-2 (SHP2) and<i> Gab1</i> gene with gastric cancer and gastric atrophy among<i> H. pylori</i> seropositive subjects.</p> <p><b>Methods</b>: A single nucleotide polymorphism at intron 2 of <i>Gab1 </i>(JST164345) was examined for 454 Japanese health checkup examinees (126 males and 328 females) aged 35 to 85 without a history of gastric cancer and 202 gastric cancer patients (134 males and 68 females) aged 33 to 94 with pathologically confirmed diagnosis of gastric adenocarcinoma.</p> <p><b>Results</b>: The decreased OR of the Gab1 A/A for <i>H. pylori </i>seropositivity was 0.25 (95% confidence interval (CI): 0.08-0.71). Among seropositive healthy controls, the OR of the Gab1 G/A+A/A for gastric atrophy was significant (OR=1.95, 95% CI: 1.12 -3.40). Seropositive individuals with PTPN11 G/G and Gab1 G/A+A/A demonstrated the highest risk of gastric atrophy with significance (OR=3.49, 95% CI: 1.54-7.90) relative to PTPN11 G/A+A/A and Gab1 G/G, the lowest risk combination, as a reference. However, the gene-gene interaction between <i>PTPN11 </i>and<i> Gab1 </i>was not observed (OR=1.39, 95% CI: 0.41-4.66). Compared to gastric cancer case, the <i>Gab1 </i>did not influence the step of atrophy/metaplasia-gastric cancer sequence.</p> <p><b>Conclusions</b>: This study represents that the <i>Gab1</i> polymorphism was associated with the low risk of <i>H. pylori </i>infection and the high risk of gastric atrophy among seropositive healthy controls, and that seropositive individuals with PTPN11 G/G and Gab1 G/A+G/G were associated with the greatest risk of gastric atrophy. These findings require confirmation in much larger studies.</p> ]]></description>  
<dc:creator>Yasuyuki Goto, Takafumi Ando, Kazuko Nishio, Sayo Kawai, Yoshiko Ishida, Mariko Naito, Hidemi Goto, Nobuyuki Hamajima</dc:creator>
<dc:source>International Journal of Medical Sciences</dc:source>
<dc:publisher>Ivyspring International Publisher</dc:publisher> 
<prism:volume>4</prism:volume> 
<prism:number>1</prism:number> 
<prism:startingPage>1</prism:startingPage> 
<prism:endingPage>6</prism:endingPage> 
<pubDate>2006-11-1</pubDate>
<category>Research Paper</category>
</item>

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