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      Gender Disparities in Osteoporosis

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      Publication date (Electronic):
      Journal: Journal of Clinical Medicine Research
      Publisher: Elmer Press
      Keywords: Osteoporosis, Men, Fracture and dual energy X-ray absorptiometry

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          Abstract

          Osteoporosis is a growing health concern worldwide and its complications are as prevalent as other common chronic disease complications such as hypertension and diabetes. In this review, we will discuss the role of gender in osteoporosis, especially related to peak bone mass and maturation, rate of annual bone loss, screening, prevalence of osteoporosis and its related fractures, mortality after osteoporosis-related fracture, fracture risk predication using different technologies and the impact of gender on osteoporosis management.

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          Assessment of fracture risk and its application to screening for postmenopausal osteoporosis. Report of a WHO Study Group.

          of the World Health Organization World Health Organization Constitution (1994)
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            Pathogenesis of bone fragility in women and men.

            Ego Seeman (2002)
            There is no one cause of bone fragility; genetic and environmental factors play a part in development of smaller bones, fewer or thinner trabeculae, and thin cortices, all of which result in low peak bone density. Material and structural strength is maintained in early adulthood by remodelling; the focal replacement of old with new bone. However, as age advances less new bone is formed than resorbed in each site remodelled, producing bone loss and structural damage. In women, menopause-related oestrogen deficiency increases remodelling, and at each remodelled site more bone is resorbed and less is formed, accelerating bone loss and causing trabecular thinning and disconnection, cortical thinning and porosity. There is no equivalent midlife event in men, though reduced bone formation and subsequent trabecular and cortical thinning do result in bone loss. Hypogonadism contributes to bone loss in 20-30% of elderly men, and in both sexes hyperparathyroidism secondary to calcium malabsorption increases remodelling, worsening the cortical thinning and porosity and predisposing to hip fractures. Concurrent bone formation on the outer (periosteal) cortical bone surface during ageing partly compensates for bone loss and is greater in men than in women, so internal bone loss is better offset in men. More women than men sustain fractures because their smaller skeleton incurs greater architectural damage and adapts less effectively by periosteal bone formation. The structural basis of bone fragility is determined before birth, takes root during growth, and gains full expression during ageing in both sexes.
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              Fracture incidence and association with bone mineral density in elderly men and women: the Rotterdam Study.

              A Uitterlinden, Digna van Schaik, Petra E W de Haas … (2003)
              The incidence of all non-vertebral fractures, as well as the relation to bone mineral density (BMD), was quantified in 7806 men and women from the Rotterdam Study, a prospective, population-based cohort study of men and women aged 55 years and older. In addition, the sensitivity of using a T-score at or below -2.5 for identifying subjects at risk for fractures was assessed. At baseline, between 1990 and 1993, femoral neck BMD was measured by dual energy X-ray absorptiometry (DXA). Subsequently, gender-specific T-scores were calculated using the NHANES reference population. During a mean follow-up of 6.8 years, information on incident non-vertebral fractures was gathered. In general, hip, wrist and upper humerus fractures are the most frequent fractures in both men and women. Femoral neck BMD appears to be an equally important risk factor in both genders, and is especially related to hip fractures. For all non-vertebral fractures, the age-adjusted hazard ratio (95% confidence interval) per standard deviation decrease in femoral neck BMD was 1.5 (1.4-1.6) for women and 1.4 (1.2-1.6) for men. For hip fractures, the hazard ratios were 2.1 (1.7-2.5) for women and 2.3 (1.6-3.3) for men. Only 44% of all non-vertebral fractures occurred in women with a T-score below -2.5; in men, this percentage was even lower (21%). Thus, there is a clear need for the development of more sensitive risk assessment tools, using not only BMD, but also other clinical predictors of fractures.
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                Author and article information

                Journal
                Journal ID (nlm-ta): J Clin Med Res
                Journal ID (iso-abbrev): J Clin Med Res
                Journal ID (publisher-id): Elmer Press
                Title: Journal of Clinical Medicine Research
                Publisher: Elmer Press
                ISSN (Print): 1918-3003
                ISSN (Electronic): 1918-3011
                Publication date (Print): May 2017
                Publication date (Electronic): 01 April 2017
                Volume: 9
                Issue: 5
                Pages: 382-387
                Affiliations
                Department of Internal Medicine, Taif University School of Medicine, Taif, Saudi Arabia. Email: kalswat@ 123456hotmail.com
                Article
                DOI: 10.14740/jocmr2970w
                PMC ID: 5380170
                PubMed ID: 28392857
                SO-VID: b83b7ed2-5369-4683-942b-099c448a86fb
                Copyright © Copyright 2017, Alswat et al.
                License:

                This article is distributed under the terms of the Creative Commons Attribution Non-Commercial 4.0 International License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date accepted : 01 March 2017
                Categories
                Subject: Review

                ScienceOpen disciplines: Medicine
                Keywords: osteoporosis,men,fracture and dual energy x-ray absorptiometry
                Data availability:
                ScienceOpen disciplines: Medicine
                Keywords: osteoporosis, men, fracture and dual energy x-ray absorptiometry

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