检验医学 ›› 2022, Vol. 37 ›› Issue (6): 543-546.DOI: 10.3969/j.issn.1673-8640.2022.06.009

• 临床应用研究·论著 • 上一篇    下一篇

MTHFR基因C677T位点多态性及血脂水平与GDM的关系

王玲玲1, 任春丽2   

  1. 1.承德医学院附属医院检验科,河北 承德 067000
    2.承德医学院附属医院产科,河北 承德 067000
  • 收稿日期:2021-01-25 修回日期:2021-12-10 出版日期:2022-06-30 发布日期:2022-07-28
  • 作者简介:王玲玲,女,1989年生,硕士,主管技师,主要从事临床检验工作。
  • 基金资助:
    承德市科学技术研究与发展计划项目(201804A016)

Correlation of MTHFR gene C677T polymorphism and blood lipid levels with GDM

WANG Lingling1, REN Chunli2   

  1. 1. epartment of Clinical Laboratory,the Affiliated Hospital of Chengde Medical College,Chengde 067000,Hebei,China
    2. Department of Obstetrics,the Affiliated Hospital of Chengde Medical College,Chengde 067000,Hebei,China
  • Received:2021-01-25 Revised:2021-12-10 Online:2022-06-30 Published:2022-07-28

摘要:

目的 探讨亚甲基四氢叶酸还原酶(MTHFR)基因C677T位点多态性及血脂水平与妊娠糖尿病(GDM)的关系。方法 选取GDM患者144例(GDM组),以142例正常孕妇作为对照组。检测所有对象的MTHFR基因C677T位点多态性及血脂[总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)和高密度脂蛋白胆固醇(HDL-C)]水平,计算非高密度脂蛋白胆固醇(non-HDL-C)水平。结果 GDM组MTHFR基因型分布及等位基因频率与对照组比较,差异均有统计学意义(P<0.01)。与对照组比较,GDM组TG、TC、LDL-C和non-HDL-C水平显著升高(P<0.05),HDL-C水平显著降低(P<0.01)。与CC基因型的GDM患者比较,TT基因型的GDM患者TC、non-HDL-C水平升高(P<0.05),HDL-C水平降低(P<0.01);CT基因型的GDM患者TG、TC、LDL-C和non-HDL-C水平升高(P<0.05),HDL-C水平降低(P<0.01)。与CC基因型的正常孕妇比较,TT和CT基因型的正常孕妇TG、TC和non-HDL-C水平均升高(P<0.01)。二元Logistic回归分析结果显示,MTHFR T等位基因频率及LDL-C、non-HDL-C水平升高是GDM发生的危险因素[比值比(OR)值分别为5.25、2.44、1.65,95%可信区间分别为3.66~7.53、1.69~3.53、1.41~1.92],HDL-C升高是GDM发生的保护因素(OR=0.05,95%可信区间为0.02~0.13)。结论 MTHFR基因C677T位点多态性可能与GDM患者血脂异常有关,MTHFR T等位基因频率升高是GDM发生的危险因素。

关键词: 亚甲基四氢叶酸还原酶, 基因多态性, 妊娠糖尿病

Abstract:

Objective To investigate the relationship between the polymorphism of methylene tetrahydrofolate reductase(MTHFR) gene C677T polymorphism,blood lipid levels and gestational diabetes mellitus(GDM). Methods Totally,144 patients with GDM and 142 healthy pregnant women were enrolled as case group and control group,respectively. The polymorphism of MTHFR gene C677T and blood lipid levels [total cholesterol(TC),triglyceride(TG),low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol(HDL-C)] were determined,and non- high-density lipoprotein cholesterol(non-HDL-C) levels were calculated. Results There was statistical significance in genotype distribution and allele frequency of MTHFR gene in GDM group compared with control group(P<0.01). Compared with control group,the levels of TG,TC,LDL-C,non-HLD-C in GDM group were increased(P<0.05),and the HDL-C level was decreased(P<0.01). Compared with CC genotype GDM patients,TT genotype GDM patients had higher TC and non-HDL-C levels(P<0.05) and lower HDL-C levels(P<0.01). The levels of TG,TC,LDL-C and non-HDL-C in GDM patients with CT genotype were increased(P<0.05),while HDL-C was decreased(P<0.01). Compared with CC genotype,TG,TC and non-HDL-C levels were increased in healthy pregnant women with TT and CT genotype. T allele frequency,LDL-C levels and non-HDL-C levels were positively correlated with GDM [odds ratio(OR)=5.25,95% confidence interval 3.66-7.53;OR=2.44,95% confidence interval 1.69-3.53;OR=1.65,95%confidence interval 1.41-1.92]. HDL-C was negatively correlated with GDM(OR=0.05,95% confidence interval 0.02-0.13). Conclusions The polymorphism of MTHFR gene C677T may be related tso the abnormality of blood lipid in GDM,and increased MTHFR T allele frequency may be a risk factor for GDM.

Key words: Methylene tetrahydrofolate reductase, Gene polymorphism, Gestational diabetes mellitus

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