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Effects of vitamin E on bone remodeling in perimenopausal women: Mini review

  • Onur Guralp
    Correspondence
    Corresponding author at: Akademiler Sit. B/37, Kat. 8 Beşiktaş, Istanbul, Turkey. Tel.: +90 5066319529; fax: +90 2123226955.
    Affiliations
    Obstetrics and Gynecology, Bozova State Hospital, Sanliurfa, Turkey
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Published:September 06, 2014DOI:https://doi.org/10.1016/j.maturitas.2014.08.012

      Abstract

      Vitamin E is known to be the most important antioxidant in the body, protecting against the effects of toxic radicals. The main idea behind the studies on vitamin E and bone metabolism stems from the concept that oxidative stress may interfere with the bone formation activity of osteoblasts which in turn can lead to osteoporosis. This mini-review, summarizes the studies on the effects of vitamin E on bone mineral density, fracture risk, bone formation, and resorption markers in perimenopausal women. Current evidence does not the support daily use of vitamin E for protection against osteoporosis and hip fracture risk in perimenopausal women. However some benefit has been shown in some observational studies. Low vitamin E (>6.2 mg/day) intake seems to be associated with an OR of 3.0 of hip fracture in current smokers. Compared with the highest quintile of alpha-tocopherol intake, the lowest quintile of intake conferred a multivariable-adjusted HR of 1.86 for hip fracture and 1.20 for any fracture. Alpha-tocopherol supplementation may alter the alpha-tocopherol/gamma-tocopherol ratio; which in turn may be associated with decreased osteoblastic activity. Interventional studies, especially randomized controlled trials (RCT), evaluating a possible causal relationship between serum vitamin E levels and BMD and hip fracture risk in perimenopausal women are needed.

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