**3. Summary**

The activation of peripheral blood CD3+ T-lymphocytes and immunologic inflammatory responses played a role in the pathogenesis of AF,and might be a diagnostic or therapeu‐ tic marker. Dietary n-3 PUFA supplementation attenuates the inducibility and mainte‐ nance of AF in the sterile pericarditis model by reducing the production of proinflammatory cytokines.
