Title : Metoprolol protects against myocardial infarction by inhibiting miR-1 expression in rats.

Pub. Date : 2020 Jan

PMID : 31702064






6 Functional Relationships(s)
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1 The effect of metoprolol on the expression of miR-1 and connexin43 (Cx43) was quantified by real-time PCR and western blot, respectively. Metoprolol gap junction protein, alpha 1 Rattus norvegicus
2 The effect of metoprolol on the expression of miR-1 and connexin43 (Cx43) was quantified by real-time PCR and western blot, respectively. Metoprolol gap junction protein, alpha 1 Rattus norvegicus
3 Metoprolol reversed the up-regulation of miR-1 and down-regulation of Cx43 in MI heart. Metoprolol gap junction protein, alpha 1 Rattus norvegicus
4 Moreover, in H2 O2 -stimulated cardiomyocytes, overexpression of miR-1 abolished the effects of metoprolol on Cx43 up-regulation and increased intercellular communication, indicating that miR-1 may be a necessary mediator for the cardiac protective function of metoprolol. Metoprolol gap junction protein, alpha 1 Rattus norvegicus
5 Moreover, in H2 O2 -stimulated cardiomyocytes, overexpression of miR-1 abolished the effects of metoprolol on Cx43 up-regulation and increased intercellular communication, indicating that miR-1 may be a necessary mediator for the cardiac protective function of metoprolol. Metoprolol gap junction protein, alpha 1 Rattus norvegicus
6 CONCLUSIONS: Metoprolol relieves MI injury via suppression miR-1, thus increasing its target protein Cx43 and improving intercellular communication. Metoprolol gap junction protein, alpha 1 Rattus norvegicus