PLG and atrial fibrillation: Taken together, our MR analyses identified 29 plasma proteins as causal, with PLG being implicated in both MI (OR:0.79, 95% CI:0.74–0.85, FDR = 5.47 × 10-7) and AF (OR:0.86, 95%CI:0.81–0.93, FDR = 1.11 × 10-2).