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The association between BsmI polymorphism and bone mineral density in young patients with epilepsy who are taking phenytoin.
MedLine Citation:
PMID:  23281616     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Purpose:  This study sought to determine the association between BsmI polymorphism and bone mineral density, 25-hydroxyvitamin D, and parathyroid hormone levels in patients with epilepsy. Methods:  We recruited ambulatory young adults with epilepsy who were taking phenytoin. Data regarding demographics, basic laboratory studies, history of clinical epilepsy, parathyroid hormone, and vitamin D levels, as well as BsmI polymorphism of the vitamin D receptor (VDR) gene, were obtained. The bone mineral density (BMD) of the lumbar spine and left femur were measured using dual-energy x-ray absorptiometry. Key Findings:  Ninety-four patients were included in the study. BsmI polymorphism had a statistically significant lower T-score of the lumbar spine and left femoral neck than patients with wild-type VDR gene (p < 0.01 and p < 0.01, respectively). In addition, patients with BsmI polymorphism had a statistically significant lower z-score of the lumbar spine and left femoral neck than patients with wild-type VDR gene (p < 0.01 and p < 0.01, respectively). The 25-hydroxyvitamin D level in patients with wild-type genes was higher than in epileptic patients with BsmI polymorphism (p < 0.01 and p < 0.01, respectively). Parathyroid hormone level in patients with wild-type VDR gene or patients having BsmI polymorphism was not correlated with BMD at either site. Significance:  In patients with epilepsy taking phenytoin, having BsmI polymorphism was associated with lower BMD.
Authors:
Kanitpong Phabphal; Alan Geater; Kitti Limapichart; Pornchai Sathirapanya; Suwanna Setthawatcharawanich; Natthawan Witeerungrot; Natawan Thammakumpee; Ratana Leelawattana
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-2
Journal Detail:
Title:  Epilepsia     Volume:  -     ISSN:  1528-1167     ISO Abbreviation:  Epilepsia     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2983306R     Medline TA:  Epilepsia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 International League Against Epilepsy.
Affiliation:
Neurology Unit, Department of Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand Epidemiology Unit, Department of Epidemiology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand Endocrinology and Metabolism Unit, Department of Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand.
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