trans-Polydatin protects the mouse heart against ischemia/reperfusion injury via inhibition of the renin-angiotensin system (RAS) and Rho kinase (ROCK) activity.
Food Funct
; 8(6): 2309-2321, 2017 Jun 21.
Article
em En
| MEDLINE
| ID: mdl-28589995
ABSTRACT
BACKGROUND:
Recent studies highlighted the protective benefits of a Chinese herb extract from polygonum cuspidatum, trans-polydatin, on cardiac disease. We investigated the therapeutic effect of trans-polydatin on myocardial ischemia/reperfusion (IR) injury and the underlying mechanisms related to the renin-angiotensin system (RAS) and RhoA kinase (ROCK) pathway. METHODS ANDRESULTS:
Experiments were performed on neonatal rats' ventricular myocytes that were subjected to hypoxia-reoxygenation (simulated IR, SIR) and on adult mice which were subjected to left anterior descending coronary artery occlusion for 45 min followed by a one-week reperfusion. trans-Polydatin significantly increased cell viability and reduced apoptosis in SIR cardiomyocytes. It was also observed to reduce the infarct size and increase the cardiac function in IR mice. trans-Polydatin decreased the expression of angiotensin and inhibited the activities of renin and angiotensin-converting enzyme. Furthermore, trans-polydatin inhibited ROCK activity, especially the angiotensin I receptor-activated ROCK pathway.CONCLUSIONS:
trans-Polydatin exerts a cardio-protection against myocardial IR injury likely through inhibiting both RAS and the downstream ROCK pathway.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
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6_ODS3_enfermedades_notrasmisibles
Base de dados:
MEDLINE
Assunto principal:
Sistema Renina-Angiotensina
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Estilbenos
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Traumatismo por Reperfusão Miocárdica
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Quinases Associadas a rho
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Glucosídeos
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Coração
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Isquemia
Limite:
Animals
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Humans
/
Male
Idioma:
En
Revista:
Food Funct
Ano de publicação:
2017
Tipo de documento:
Article