Effects of carvedilol at different doses on cardiac myocyte apoptosis and apoptosis-associated gene in rats with pressure overload / 中国临床药理学与治疗学
Chinese Journal of Clinical Pharmacology and Therapeutics
;
(12)2004.
Artigo
em Chinês
| WPRIM
| ID: wpr-555218
ABSTRACT
AIM:
To study the effects and mechanism of carvedilol (CAR) at different doses on cardiac myocyte apoptosis in rats with myocardial hypertrophy of CHF.METHODS:
Using the animal model of CHF, induced by abdominal aortic constriction in male Wistar rats, hemodyanmics parameters, cardiac myocyte apoptosis, and the expression of Bcl-2 and P53 were investigated in the untreated experimental group (CHF group) at 1 week after operation and treated experimental groups in which rats were treated with CAR at a lower dose (LCAR group, 0.1 mg?kg -1?d -1) and at a higher dose (HCAR group, 10 mg?kg -1?d -1) for 7 weeks since 1 week after operation. The sham-operated rats were as controls (SH group, n=8).RESULTS:
Either doses improved heart function and decreased apoptosis index in rats with CHF. The number of myocytes apoptosis and the level of Bcl-2 were significantly higher and P53 was markedly lower in HCAR group than those in LCAR and MCAR groups.CONCLUSION:
CAR can effectively decrease myocardiocyte apoptosis, prevent and cure CHF. The effects are dose-dependent, associated with changes of the expression of apoptosis-associated gene.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Clinical Pharmacology and Therapeutics
Ano de publicação:
2004
Tipo de documento:
Artigo
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