RBP4 variants are significantly associated with plasma RBP4 levels and hypertriglyceridemia risk in Chinese Hans

Ying Wu, Huaixing Li, Ruth J F Loos, Qibin Qi, Frank B. Hu, Yong Liu, Xu Lin

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We previously found that plasma RBP4 levels were strongly associated with metabolic syndrome components. This study aimed to determine whether RBP4 variants are associated with the metabolic syndrome components and plasma RBP4 levels, and to investigate whether the associations between plasma RBP4 and the metabolic syndrome components are causal. Five tagSNPs were tested for their associations with plasma RBP4 levels and metabolic syndrome components in a population-based sample of 3,210 Chinese Hans. A possible causal relationship between plasma RBP4 levels and hypertriglyceridemia was explored by Mendelian randomization. Plasma RBP4 levels were significantly associated with rs10882273 (βz -0.10SD[2 -0.17, -0.03], P = 0.0050), rs3758538 (βz -0.13SD[ -0.24, -0.02], P = 0.0249) in all participants, and with rs17108993 in Shanghai participants (βz -0.19SD[ -0.32, -0.05], P = 0.0061). The single nucleotide polymorphism (SNP) rs3758538 was significantly associated with hypertriglyceridemia (OR 0.62 [0.45-0.85], P = 0.0026) and triglycerides (βz -0.19SD [-0.30, -0.07], P = 0.001) in all participants. In Mendelian randomization analysis, the observed effect size of association between rs3758538 and hypertriglyceridemia was different from the expected effect size (P = 0.0213). This is the first study to show that the RBP4 variants are significantly associated with plasma RBP4 levels and hypertriglyceridemia risk in Chinese Hans. However, results of Mendelian randomization do not support the hypothesis thatRBP4 levels are causally related to hypertriglyceridemia risk.

Original languageEnglish (US)
Pages (from-to)1479-1486
Number of pages8
JournalJournal of Lipid Research
Volume50
Issue number7
DOIs
StatePublished - Jul 2009
Externally publishedYes

Fingerprint

Hypertriglyceridemia
Plasmas
Random Allocation
Mendelian Randomization Analysis
Polymorphism
Single Nucleotide Polymorphism
Triglycerides
Nucleotides
Population

Keywords

  • Mendelian randomization
  • SNP

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Endocrinology

Cite this

RBP4 variants are significantly associated with plasma RBP4 levels and hypertriglyceridemia risk in Chinese Hans. / Wu, Ying; Li, Huaixing; Loos, Ruth J F; Qi, Qibin; Hu, Frank B.; Liu, Yong; Lin, Xu.

In: Journal of Lipid Research, Vol. 50, No. 7, 07.2009, p. 1479-1486.

Research output: Contribution to journalArticle

Wu, Ying ; Li, Huaixing ; Loos, Ruth J F ; Qi, Qibin ; Hu, Frank B. ; Liu, Yong ; Lin, Xu. / RBP4 variants are significantly associated with plasma RBP4 levels and hypertriglyceridemia risk in Chinese Hans. In: Journal of Lipid Research. 2009 ; Vol. 50, No. 7. pp. 1479-1486.
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abstract = "We previously found that plasma RBP4 levels were strongly associated with metabolic syndrome components. This study aimed to determine whether RBP4 variants are associated with the metabolic syndrome components and plasma RBP4 levels, and to investigate whether the associations between plasma RBP4 and the metabolic syndrome components are causal. Five tagSNPs were tested for their associations with plasma RBP4 levels and metabolic syndrome components in a population-based sample of 3,210 Chinese Hans. A possible causal relationship between plasma RBP4 levels and hypertriglyceridemia was explored by Mendelian randomization. Plasma RBP4 levels were significantly associated with rs10882273 (βz -0.10SD[2 -0.17, -0.03], P = 0.0050), rs3758538 (βz -0.13SD[ -0.24, -0.02], P = 0.0249) in all participants, and with rs17108993 in Shanghai participants (βz -0.19SD[ -0.32, -0.05], P = 0.0061). The single nucleotide polymorphism (SNP) rs3758538 was significantly associated with hypertriglyceridemia (OR 0.62 [0.45-0.85], P = 0.0026) and triglycerides (βz -0.19SD [-0.30, -0.07], P = 0.001) in all participants. In Mendelian randomization analysis, the observed effect size of association between rs3758538 and hypertriglyceridemia was different from the expected effect size (P = 0.0213). This is the first study to show that the RBP4 variants are significantly associated with plasma RBP4 levels and hypertriglyceridemia risk in Chinese Hans. However, results of Mendelian randomization do not support the hypothesis thatRBP4 levels are causally related to hypertriglyceridemia risk.",
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