Ci Song, S. Burgess, J. Eicher, C. O’Donnell, Jie Huang, M. Sabater-Lleal, F. Asselbergs, D. Tregouet, So-Youn Shin, Jingzhong Ding, Tiphaine Oudot-Mellakh, L. Folkersen, Scott M. Williams, M. Ikram, M. Kleber, D. Becker, V. Truong, J. Mychaleckyj, Weihong Tang, Qiong Yang, B. Sennblad, J. Moore, F. Williams, G. Silbernagel, Elisabeth M. C. Schrijvers, Shelly G. Smith, M. Karakas, G. Tofler, A. Silveira, G. Navis, K. Lohman, A. Peters, P. Lundmark, R. Strawbridge, B. Boehm, A. Carter, B. McKnight, J. Öhrvik, M. Franzosi, U. Seedorf, R. Collins, A. Franco-Cereceda, A. Syvänen, A. Goodall, L. Yanek, M. Cushman, M. Müller-Nurasyid, A. Folsom, S. Basu, N. Matijevic, J. Meigs, B. Winkelmann, P. Grant, H. Hillege, T. Spector, L. Becker, R. Tracy, W. März, P. Eriksson, F. Cambien, P. Morange, G. Ehret, P. Munroe, K. Rice, M. Bochud, D. Chasman, M. Tobin, G. Verwoert, Vasyl Pihur, P. Vollenweider, P. O’Reilly, N. Amin, J. Bragg-Gresham, A. Teumer, L. Launer, Jing Hua Zhao, Y. Aulchenko, S. 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Howard, U. Hoffmann, U. Schminke, V. Salomaa, Vijay Nambi, V. Gudnason, Yongmei Liu, Yan V. Sun, W. Post, W. Koenig, W. Rathmann, Xia Li, Yuching Cheng
tlooto Summary
The study indicates a causal effect of elevated PAI‐1 level on CHD risk, which may be mediated by glucose dysfunction, which is indicated by the systematic meta‐analysis.
Abstract
Background Plasminogen activator inhibitor type 1 (PAI‐1) plays an essential role in the fibrinolysis system and thrombosis. Population studies have reported that blood PAI‐1 levels are associated with increased risk of coronary heart disease (CHD). However, it is unclear whether the association reflects a causal influence of PAI‐1 on CHD risk. Methods and Results To evaluate the association between PAI‐1 and CHD, we applied a 3‐step strategy. First, we investigated the observational association between PAI‐1 and CHD incidence using a systematic review based on a literature search for PAI‐1 and CHD studies. Second, we explored the causal association between PAI‐1 and CHD using a Mendelian randomization approach using summary statistics from large genome‐wide association studies. Finally, we explored the causal effect of PAI‐1 on cardiovascular risk factors including metabolic and subclinical atherosclerosis measures. In the systematic meta‐analysis, the highest quantile of blood PAI‐1 level was associated with higher CHD risk comparing with the lowest quantile (odds ratio=2.17; 95% CI: 1.53, 3.07) in an age‐ and sex‐adjusted model. The effect size was reduced in studies using a multivariable‐adjusted model (odds ratio=1.46; 95% CI: 1.13, 1.88). The Mendelian randomization analyses suggested a causal effect of increased PAI‐1 level on CHD risk (odds ratio=1.22 per unit increase of log‐transformed PAI‐1; 95% CI: 1.01, 1.47). In addition, we also detected a causal effect of PAI‐1 on elevating blood glucose and high‐density lipoprotein cholesterol. Conclusions Our study indicates a causal effect of elevated PAI‐1 level on CHD risk, which may be mediated by glucose dysfunction.
Citation format
SONG, Ci, et al. Causal effect of plasminogen activator inhibitor type 1 on coronary heart disease. Journal of the American Heart Association, 2017, 6 6.