International Journal of Medical Sciences

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24 September 2018

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Int J Med Sci 2018; 15(12):1373-1383. doi:10.7150/ijms.26571

Review

The Relationship between Follicle-stimulating Hormone and Bone Health: Alternative Explanation for Bone Loss beyond Oestrogen?

Kok-Yong Chin

Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Malaysia.

Abstract

Bone loss in women commences before the onset of menopause and oestrogen deficiency. The increase of follicle-stimulating hormone (FSH) precedes oestrogen decline and may be a cause for bone loss before menopause. This review summarizes the current evidence on the relationship between FSH and bone derived from cellular, animal and human studies. Cellular studies found that FSH receptor (FSHR) was present on osteoclasts, osteoclast precursors and mesenchymal stem cells but not osteoblasts. FSH promoted osteoclast differentiation, activity and survival but exerted negligible effects on osteoblasts. Transgenic FSHR or FSH knockout rodents showed heterogenous skeletal phenotypes. Supplementation of FSH enhanced bone deterioration and blocking of FSH action protected bone of rodents. Human epidemiological studies revealed a negative relationship between FSH and bone health in perimenopausal women and elderly men but the association was attenuated in postmenopausal women. In conclusion, FSH may have a direct action on bone health independent of oestrogen by enhancing bone resorption. Its effects may be attenuated in the presence of overt sex hormone deficiency. More longitudinal studies pertaining to the effects of FSH on bone health, especially on fracture risk, should be conducted to validate this speculation.

Keywords: follicotropin, gonadotropins, menopause, osteopenia, osteoporosis, skeleton.

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How to cite this article:
Chin KY. The Relationship between Follicle-stimulating Hormone and Bone Health: Alternative Explanation for Bone Loss beyond Oestrogen?. Int J Med Sci 2018; 15(12):1373-1383. doi:10.7150/ijms.26571. Available from http://www.medsci.org/v15p1373.htm