IL10 and Myocardial fibrosis: Forty rats were divided into four groups: a control group, an azithromycin treatment group, selenium and vitamin E treatment group, and a combined treatment group receiving both azithromycin, selenium, and vitamin E. Results showed that the azithromycin-treated group exhibited significant increases in interleukin-10 levels, myocardial fibrosis, and cell structure degeneration, while combined selenium and vitamin E treatment markedly reduced these adverse effects, indicating a protective effect.