Interaction between microRNA expression and classical risk factors in the risk of coronary heart disease

نویسندگان

  • Xiao-Qing Ding
  • Peng-Cheng Ge
  • Zhe Liu
  • Heng Jia
  • Xi Chen
  • Feng-Hui An
  • Li-Hua Li
  • Zhao-Hong Chen
  • Hong-Wei Mao
  • Zhao-Yang Li
  • Yan Gu
  • Tie-Bing Zhu
  • Chun-Jian Li
  • Lian-Sheng Wang
  • Wen-Zhu Ma
  • Zhi-Jian Yang
  • En-Zhi Jia
چکیده

The aim of this study was to identify the synergistic effect of microRNA expression with classical risk factors of coronary heart disease (CHD) and to explore their diagnostic value for coronary stenotic lesions in subjects with CHD. Plasma samples were obtained from 66 subjects with CHD and from 58 control individuals. A quantitative reverse-transcription PCR (RT-qPCR) assay was conducted to confirm the relative expressions of the known CHD-related miRNAs. The severity of coronary atherosclerosis was based on the Gensini scoring system. The expression of miR-125b in plasma of the CHD group was lower than that of the non-CHD group (0.14 ± 0.09 vs. 0.18 ± 0.10, p = 0.055), and the miR-125b levels significantly decreased following an increasing Gensini score (P = 0.037). Spearman correlation analyses indicated the Gensini score was negatively associated with miR-125b (r = -0.215, p = 0.017). Of all the miRNAs, miR-125b showed the lowest AUC (0.405; 95% CI: 0.305 ~ 0.506, p = 0.070). We found several synergistic effects between miR-125b and classical risk factors, such as age, sex, CR, FBG and HDL-C; the proportion of CHD attributable to the interaction of miR-125b and age was as high as 80%. Therefore, miR-125b was shown to play an important role in individual's susceptibility to developing CHD.

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عنوان ژورنال:

دوره 5  شماره 

صفحات  -

تاریخ انتشار 2015