The beneficial effects of ivabradine against myocardial damage induced by isoproterenol in rats

Autor: Seyhan Polat, Miray Altuntas, Mehmet Gunata, Alaadin Polat, Lokman Hekim Tanriverdi, Azibe Yildiz, Merve Durhan, Nigar Vardi, Yilmaz Cigremis, Haci Ahmet Acet, Hakan Parlakpinar
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Medicine Science, Vol 12, Iss 3, Pp 667-73 (2023)
Druh dokumentu: article
ISSN: 2147-0634
DOI: 10.5455/medscience.2023.03.042
Popis: We aimed to investigate the potential benefits of two doses of ivabradine (IVA)-an If sodium channel blocker against isoproterenol (ISO)-induced myocardial damage in rats.The rats were randomly divided into 4 groups: Control group (n=8); Saline was administered, ISO group (n=12); 150 mg/kg ISO was administered for 2 days, ISO+IVA (1 mg/kg) group (n=12); 1 mg/kg IVA was administered for 4 days in addition to ISO. ISO+IVA (10 mg/kg) group (n=12): 10 mg/kg IVA was administered for 4 days in addition to ISO. Thereafter, hemodynamic, histopathological, and biochemical studies were performed. In the ISO+IVA (1 mg/kg) and ISO+IVA (10 mg/kg) groups, ISO-induced myocardial changes including an increase in density of granulation tissue and degenerated cardiomyocyte were equally decreased. HR was mildly reduced, and arterial blood pressures were slightly increased in the IVA-treated groups versus the ISO group. In the hearts of IVA-treated groups, malondialdehyde (MDA) levels were significantly reduced and glutathione (GSH) level and catalase (CAT) activity were mildly increased compared to the ISO group. Elevation of GSH and CAT activity were more pronounced in the ISO+IVA (10 mg/kg) group. Our results indicate that both 1 mg/kg and 10 mg/kg doses of IVA are effective against heart damage induced by ISO via its negative chronotropic, anti-oxidant (dose-dependent), anti-inflammatory and anti-degenerative properties. [Med-Science 2023; 12(3.000): 667-73]
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