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The -1131T>C polymorphism in the apolipoprotein A5 gene is related to hypertriglyceridemia in Taiwanese aborigines.

Authors
  • Huang, Meng-Chuan
  • Wang, Tsu-Nai
  • Wang, Huan-Sen
  • Sung, Yi-Ching
  • Ko, Ying-Chin
  • Chiang, Hung-Che
Type
Published Article
Journal
The Kaohsiung Journal of Medical Sciences
Publisher
Elsevier
Publication Date
Apr 01, 2008
Volume
24
Issue
4
Pages
171–179
Identifiers
DOI: 10.1016/S1607-551X(08)70114-1
PMID: 18424353
Source
Medline
License
Unknown

Abstract

The prevalence of hypertriglyceridemia, considered to be an independent risk factor for the development of cardiovascular disease, is high in Taiwanese aborigines. This study was undertaken to examine the effect of the -1131T>C polymorphism in the apolipoprotein A5 gene on serum triglyceride levels in female Taiwanese aborigines. This was a cross-sectional study, and a total of 316 unrelated female Taiwanese aborigines were genotyped at the -1131T>C polymorphism in apolipoprotein A5 using the polymerase chain reaction-restriction fragment length polymorphism method. Serum triglyceride > or = 150 mg/dL was defined as the hypertriglyceridemia group and triglyceride < 150 mg/dL was considered to be the control group. The frequency of the minor C allele was significantly higher in the hypertriglyceridemia group (0.53) than in the control group (0.35) (p < 0.001). The frequency of this rare allele was comparable to that in Japanese and Han Chinese, but was higher than that in Caucasians. In a multiple logistic model adjusted for possible confounders, C allele-containing variants were independently associated with greater risks (CT genotype: OR = 3.28, 95% CI = 1.43-7.56; CC genotype: OR = 5.86, 95% CI = 2.15-15.99) of hypertriglyceridemia than the TT genotype (p < 0.01), notably with the CC homozygote exhibiting the greatest risks. The genotype polymorphisms were also associated with serum triglyceride concentrations in a linear fashion (for trend, p < 0.05). Our results indicate that the -1131T>C polymorphism of the Apo A5 gene influences serum triglyceride levels in female Taiwanese aborigines, and that differences exist in the frequency of the C allele among people of various ethnicities.

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