Teng Ming-Sheng, Wu Semon, Er Leay-Kiaw, Hsu Lung-An, Chou Hsin-Hua, Ko Yu-Lin
1Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, 23142 Taiwan.
2Department of Life Science, Chinese Culture University, Taipei, 11114 Taiwan.
Diabetol Metab Syndr. 2018 Nov 6;10:79. doi: 10.1186/s13098-018-0383-9. eCollection 2018.
Visceral adiposity indicators and the product of triglyceride and fasting plasma glucose (TyG) index-related parameters are effective surrogate markers for insulin resistance (IR) and are predictors of metabolic syndrome and diabetes mellitus. However, their genetic determinants have not been previously reported. Pleiotropic associations of variants have been observed in lipid profiles and atherosclerotic cardiovascular diseases. We aimed to investigate polymorphisms as the genetic determinants of adiposity status, visceral adiposity indicators and TyG index-related parameters.
A total of 592 participants from Taiwan were genotyped for three single nucleotide polymorphisms (SNPs).
The SNPs rs2043085 and rs1532085 were significantly associated with body mass index (BMI), waist circumference (WC), lipid accumulation product, visceral adiposity index, and TyG index-related parameters [including the TyG index, TyG with adiposity status (TyG-BMI), and TyG-WC index], whereas the rs1800588 SNP was only significantly associated with the TyG index. The associations became nonsignificant after further adjustment for serum TG levels. No significant association was observed between any the studied SNPs and IR status.
Our data revealed a pleiotropic association between the variants and visceral adiposity indicators and TyG index-related parameters, which are mediated by serum TG levels.
内脏脂肪指标以及甘油三酯与空腹血糖乘积(TyG)指数相关参数是胰岛素抵抗(IR)的有效替代标志物,也是代谢综合征和糖尿病的预测指标。然而,此前尚未报道过它们的遗传决定因素。已观察到基因变异在血脂谱和动脉粥样硬化性心血管疾病中存在多效性关联。我们旨在研究这些多态性作为肥胖状态、内脏脂肪指标和TyG指数相关参数的遗传决定因素。
对来自台湾的592名参与者进行了三种单核苷酸多态性(SNP)的基因分型。
SNP rs2043085和rs1532085与体重指数(BMI)、腰围(WC)、脂质蓄积产物、内脏脂肪指数以及TyG指数相关参数[包括TyG指数、伴有肥胖状态的TyG(TyG-BMI)和TyG-WC指数]显著相关,而SNP rs1800588仅与TyG指数显著相关。在进一步校正血清TG水平后,这些关联变得不显著。在所研究的任何SNP与IR状态之间未观察到显著关联。
我们的数据揭示了这些变异与内脏脂肪指标和TyG指数相关参数之间的多效性关联,这是由血清TG水平介导的。