NLRP3 and chronic kidney disease: There was a moderate direct correlation between the presence of CKD and the level of NLRP3 protein in IRA (r = 0.348; p = 0.019), peripheral arterial (r = 0.378; p = 0.011) and venous blood plasma obtained on day 1 (r = 0.439; p = 0.006), day 3 (r = 0.330; p = 0.030) and day 7 (r = 0.554; p = 0.0002) of MI.