Immunohistochemical analysis for chemerin in EAT and SAT. (A): the representative slides of EAT and SAT are from a patient with CAD (a and b) and a patient without CAD (c and d) separately (magnified × 400). Negative control with omission of primary antibody (e). (B): the result of quantitative analysis of immunohistochemistry for chemerin in EAT and SAT of the two groups (CAD group, n = 6; NCAD group, n = 6). * indicates P < 0.05, EAT of CAD group vs. EAT of NCAD group. ** indicates P < 0.01 as determined by paired t-test, EAT of CAD group vs. SAT of CAD group. Abbreviations: EAT, epicardial adipose tissue; SAT, subcutaneous adipose tissue; IOD, integrated optical density.