too. While, obvious differences were Рnot found between MI control group and IgG group. Statistic analysis showed that there was Рa positive linear correlation between expression of IL-17 and the evoked rate(r=+0.88,РP<0.05). Compared to 2 weeks,the evoked rates of 4 weeks and 8 weeks in MI control group, РIgG group and Antibody group did not change (P>0.05) Р Conclusion IL-17 expression was significantly increased after MI. There is relationship Рbetween a large number of IL-17 expression and ventricular arrhythmias in Post-Myocardial Рinfarction Rats. High expression of IL-17 may induce or promote the formation of the Рreentrant circuit of ventricular arrhythmias in Post-Myocardial infarction Rats. Р Key words myocardial infarction; Interleukin-17(IL-17); ventricular arrhythmia. Р - 6 -