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  4. Association between Secreted Phosphoprotein-1 (SPP1) polymorphisms and low bone mineral density in women
 
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Association between Secreted Phosphoprotein-1 (SPP1) polymorphisms and low bone mineral density in women

Journal
PLoS ONE
Journal Volume
9
Journal Issue
5
Pages
e97428
Date Issued
2014
Author(s)
JEN-HAU CHEN  
YEN-CHING CHEN  
Mao C.-L.
JENG-MIN CHIOU  
Tsao C.K.
KEH-SUNG TSAI  
DOI
10.1371/journal.pone.0097428
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901306522&doi=10.1371%2fjournal.pone.0097428&partnerID=40&md5=074e08fa23a99f333c5f33da2720f239
https://scholars.lib.ntu.edu.tw/handle/123456789/523048
Abstract
Background: A recent meta-analysis found that secreted phosphoprotein-1 (SPP1) can predict the risk of both osteoporosis and fracture. No study has explored the association of SPP1 haplotype-tagging single nucleotide polymorphisms (htSNPs) and haplotypes with bone mineral density (BMD). Methods: This is a cross-sectional study. A total of 1,313 healthy Taiwanese women aged 40 to 55 years were recruited from MJ Health Management Institute from 2009 to 2010. BMD was dichotomized into high and low BMD groups. Three common (allele frequency ?5%) htSNPs were selected to examine the association between sequence variants of SPP1 and BMD. Results: Homozygosity for the T allele of rs4754 were protective from low BMD [TT vs. CC: adjusted OR (AOR) = 0.58, 95% confidence interval (CI) = 0.83-0.89]. A protective effect was also found for women carrying 2 copies of Hap3 TCT (AOR = 0.57, 95% CI = 0.34-0.95). Menopausal status marginally interacted with SPP1 rs6839524 on BMD (p = 0.049). Postmenopausal women carrying variant rs6839524 (GG+GC vs. CC: AOR = 2.35, 95% CI = 1.06-5.20) or Hap1 TGC (AOR = 2.36, 95% CI = 1.06-5.24) were associated with 2.4-fold risk of low BMD. For women with low BMI (<18.5 kg/m 2), variant rs6839524 (AOR = 7.64) and Hap1 (AOR = 6.42) were associated with increased risk of low BMD. These findings did not reach statistical significance after correction for multiple tests. Conclusions: SPP1 htSNP protected against low BMD in middle-aged women. SPP1 genetic markers may be important for the prediction of osteoporosis at an early age. ? 2014 Chen et al.
SDGs

[SDGs]SDG3

Other Subjects
osteopontin; osteopontin; SPP1 protein, human; adult; allele; article; body mass; bone density; cross-sectional study; female; gene frequency; genetic marker; haplotype; homozygosity; human; normal human; osteoporosis; postmenopause; prediction; risk factor; single nucleotide polymorphism; SPP1 gene; Taiwan; bone density; genetic polymorphism; genetics; homozygote; menopause; metabolism; middle aged; questionnaire; Adult; Alleles; Body Mass Index; Bone Density; Cross-Sectional Studies; Female; Haplotypes; Homozygote; Humans; Menopause; Middle Aged; Osteopontin; Osteoporosis; Polymorphism, Genetic; Polymorphism, Single Nucleotide; Questionnaires; Taiwan
Publisher
Public Library of Science
Type
journal article

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