Increase in protein expression levels of NLRP3 inflammasome and secretion of its downstream interleukins in PBMCs of patients with SAP and AMI, compared with non-CHD controls. (A) Western blotting was used to detect the protein expression of NLRP3, ASC and caspase-1 in PBMCs of each group. (B) Quantitative results are illustrated for the three indicators using western blot analysis. (C) Plasma levels of IL-1β and IL-18 from each group were measured by ELISA. *P<0.05; **P<0.01. NLRP3, nucleotide-binding oligomerization domain, leucine rich repeat, and pyrin domain-containing protein 3; PBMCs, peripheral blood monocytes; SAP, stable angina pectoris; AMI, acute myocardial infarction; CHD, coronary heart disease; ASC, apoptosis-associated speck-like protein containing a CARD; ELISA, enzyme-linked immunosorbent assay.