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Prediction of bone density from vitamin D receptor alleles


Bone density achieved in early adulthood is the major determinant of risk of osteoporotic fracture. Up to 60% of women suffer osteoporotic fractures as a result of low bone density, which is under strong genetic control acting through effects on bone turnover. Here we show that common allelic variants in the gene encoding the vitamin D receptor can be used to predict differences in bone density, accounting for up to 75% of the total genetic effect on bone density in healthy individuals. The genotype associated with lower bone density was overrepresented in postmenopausal women with bone densities more than 2 standard deviations below values in young normal women. The molecular mechanisms by which bone density is regulated by the vitamin D receptor gene are not certain, although allelic differences in the 3' untranslated region may alter messenger RNA levels. These findings could open new avenues to the development and targeting of prophylactic interventions. It follows that other pathophysiological processes considered to be subject to complex multifactorial genetic regulation may also be modulated by a single gene with pleiotropic transcriptional actions.

Type Journal
ISBN 0028-0836 (Print)
Authors Morrison, N. A.;Qi, J. C.;Tokita, A.;Kelly, P. J.;Crofts, L.;Nguyen, T. V.;Sambrook, P. N.;Eisman, J. A. :
Garvan Authors Prof Tuan Nguyen
Publisher Name NATURE
Published Date 1994-01-01 00:00:00
Published Volume 367
Published Issue 6460
Published Pages 284-7
Status Published In-print