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Ann Transl Med ; 8(10): 643, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32566580

RESUMO

BACKGROUND: Currently, the role of interleukin-10 (IL-10) as an anti-inflammatory factor in the occurrence and development of heart disease is still unclear. This study aimed to observe the dynamic changes in the expression of IL-10 in serum and myocardial tissues and to investigate the relationship of IL-10 expression with macrophage activation and cardiomyocyte apoptosis during the occurrence of myocardial infarction (MI). METHODS: Mice models with MI were prepared by ligating the anterior descending branch of the coronary artery. The animals were classified into the sham operation group (the control group), and the day 1, 7, 14, and 28 MI groups based. RESULTS: On days 7 and 14, the cells with positive IL-10 expression were largely distributed in the infarct areas, while cells with positive IL-10 expression were decreased on day 28. Serum IL-10 was significantly positively correlated with IL-10 protein expression in myocardial tissues. Moreover, Bcl-2 and Bax protein expression in myocardial tissues, along with the ratio of Bcl-2/Bax proteins, were gradually elevated with prolonged time of infarction. The expression of arginase protein increased gradually too. There were positive correlations between IL-10 and arginase expressions, and between the expressions of Bcl-2 and Bax proteins. CONCLUSIONS: After the occurrence of MI, the expression of IL-10 first increased and then decreased in serum and myocardial tissues, with this likely affecting macrophage activation, phenotypic transformation, and the occurrence of cardiomyocyte apoptosis.

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