LRP5 Polymorphisms and response to risedronate treatment in osteoporotic men

Calcified Tissue International
Marcin KrukOmar M E Albagha

Abstract

Genetic factors are important in the pathogenesis of osteoporosis, but little is known about the genetic determinants of treatment response. Previous studies have shown that polymorphisms of the LRP5 gene are associated with bone mineral density (BMD), but the relationship between LRP5 polymorphisms and response to bisphosphonate treatment in osteoporosis has not been studied. In this study we investigated LRP5 polymorphisms in relation to treatment response in a group of 249 osteoporotic or osteopenic men who participated in a 24-month randomized double blind placebo-controlled trial of risedronate treatment. BMD and biochemical markers of bone turnover were measured at baseline and after 6, 12, and 24 months of follow-up. We analyzed two coding polymorphisms of LRP5, which have previously been associated with BMD, V667M (rs4988321) and A1330V (rs3736228), and found a significant association between the A1330V polymorphism and hip BMD at baseline. Subjects with the 1330 Val/Val genotype had 8.4% higher total-hip BMD compared with the other genotype groups (P = 0.009), and similar associations were observed at the femoral neck (P = 0.01) and trochanter (P = 0.002). There was no association between A1330V and spine BMD, however,...Continue Reading

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Jul 5, 2012·Current Osteoporosis Reports·Francesca Marini, Maria Luisa Brandi
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Jul 9, 2021·Calcified Tissue International·Outi Mäkitie, M Carola Zillikens

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