Ivabradine treatment lowers blood pressure and promotes cardiac and renal protection in spontaneously hypertensive rats.

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Autor(es): dc.creatorGomes, Fabiana Aparecida Rodrigues-
Autor(es): dc.creatorNoronha, Sylvana Izaura Salyba Rendeiro de Noronha-
Autor(es): dc.creatorSilva, Sabrina Carla Alves e-
Autor(es): dc.creatorMachado Júnior, Pedro Alves-
Autor(es): dc.creatorOstolin, Thais Lopes Valentim Di Paschoale-
Autor(es): dc.creatorChírico, Máira Tereza Talma-
Autor(es): dc.creatorRibeiro, Marcelo C.-
Autor(es): dc.creatorReis, Alexandre Barbosa-
Autor(es): dc.creatorCangussú, Silvia Dantas-
Autor(es): dc.creatorMontano, Nicola-
Autor(es): dc.creatorSilva, Valdo Jose Dias da-
Autor(es): dc.creatorMenezes, Rodrigo Cunha Alvim de-
Autor(es): dc.creatorSilva, Fernanda Cacilda dos Santos-
Autor(es): dc.creatorChianca Júnior, Deoclécio Alves-
Data de aceite: dc.date.accessioned2025-08-21T15:24:01Z-
Data de disponibilização: dc.date.available2025-08-21T15:24:01Z-
Data de envio: dc.date.issued2023-10-06-
Data de envio: dc.date.issued2023-10-06-
Data de envio: dc.date.issued2021-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/17532-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0024320522006191-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.lfs.2022.120919-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1013322-
Descrição: dc.descriptionHypertension is linked to hyperpolarization-activated cyclic nucleotide-gated (HCN) function, expressed in excitable and non-excitable cells. Considering that the reduction in heart rate (HR) improves coronary perfusion and cardiac performance, ivabradine (IVA) emerged as an important drug for the treatment of cardiovascular diseases. Aim: Evaluate if IVA chronic treatment effect can mitigate hypertension and reverse the cardiac and renal damage in SHR. Main methods: Rats were divided into 4 groups treated for 14 days with PBS (1 ml/kg; i.p) or IVA (1 mg/kg; i.p): 1) WKY PBS; 2) SHR PBS; 3) WKY IVA; and 4) SHR IVA. The systolic blood pressure (SBP) was measured, indirectly, before and during the treatment period with IVA (day 0, 1, 7 and 11). Rats were subjected to artery cannulation for direct blood pressure (BP) measurement. Morphofunctional and gene expression were evaluated in the heart and kidneys. Key findings: IVA reduced SBP only in SHR on the 7th day. Direct blood pressure measurement showed that IVA chronic treatment reduced HR in the SHR. Interestingly, mean arterial pressure (MAP) was reduced in SHR IVA when compared to SHR PBS. Serum and urinary biochemical data were not altered by IVA. Moreover, IVA reduced the renal inflammatory infiltrates and increased glomerular density, besides preventing the cardiac inflammatory and hypertrophic responses. Significance: IVA treatment lowered blood pressure, improved cardiac remodeling and inflammation, as well as decreasing renal damage in SHR. Further, IVA increased renal HCN2 mRNA and reduced cardiac HCN4 mRNA.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectIvabradine-
Palavras-chave: dc.subjectHCN channels-
Palavras-chave: dc.subjectBlood pressure-
Palavras-chave: dc.subjectHypertension-
Palavras-chave: dc.subjectRenal and cardiac inflammatory response-
Título: dc.titleIvabradine treatment lowers blood pressure and promotes cardiac and renal protection in spontaneously hypertensive rats.-
Aparece nas coleções:Repositório Institucional - UFOP

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