IL6 and Ventricular arrhythmia: Compared with the I/R model group, NC group-1 and NC group-2 showed significantly reduced serum levels of Interleukin-6 (IL-6), Tumour Necrosis Factor (TNF-α), Creatine kinase-MB (CK-MB), cardiac troponin T (cTnT), left ventricular infarction size, and frequency and duration of ventricular arrhythmia.