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Assessment of the bone status of Nigerian women by ultrasound and biochemical markers

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Abstract

Ultrasound analysis of the calcaneus and serum markers of bone turnover were used to examine the bone status of healthy Nigerian women who reside in an area of the world where dietary calcium intake is generally low and estrogen replacement therapy is not widely available. A total of 218 women (108 premenopausal and 110 postmenopausal) between the ages of 16 and 95 years were enrolled in the study. Broadband ultrasound attenuation (BUA) and speed of sound velocity (SOS) were measured and used to calculate the stiffness index (SI) of the calcaneus. In this cross-sectional study, the Nigerian women exhibited a marked age-dependent decline in SI that was defined by the regression equation SI=105.9–6.62E-3×Age2. SI was significantly correlated with age (r=−0.41,P<0.001) and with serum NTx concentrations (r=−0.26,P<0.001), but not with serum levels of bone specific alkaline phosphatase (BSAP). Years since menopause was also significantly correlated with SI (r=0.40,P<0.001). A significant increase in serum NTx concentration occurred at least a decade before a significant decline in SI was evident. In the total study group, 24% of the women had T-scores indicative of osteopenia and 9% had T-scores indicative of osteoporosis, based on US reference data. Although the reported current incidence of fracture is low in women in sub-Saharan West Africa, these data show that after menopause Nigerian women have a decline in bone quality and increase in bone turnover similar to North American Caucasian women.

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Authors and Affiliations

  1. Department of Biochemistry and Molecular Biology, University of New Mexico School of Medicine, Room 245, BMSB, 87131, Albuquerque, NM, USA

    D. J. VanderJagt, B. Bond, R. Dulai, A. Pickel, J. K. Scariano & R. H. Glew

  2. Department of Obstetrics and Gynaecology, Jos University Teaching Hospital, Jos, Nigeria

    I. O. A. Ujah & W. W. Wadinga

Authors
  1. D. J. VanderJagt
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  2. B. Bond
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  3. R. Dulai
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  4. A. Pickel
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  5. I. O. A. Ujah
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  6. W. W. Wadinga
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  7. J. K. Scariano
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  8. R. H. Glew
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VanderJagt, D.J., Bond, B., Dulai, R. et al. Assessment of the bone status of Nigerian women by ultrasound and biochemical markers. Calcif Tissue Int 68, 277–284 (2001). https://doi.org/10.1007/BF02390834

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  • DOI: https://doi.org/10.1007/BF02390834

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