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首页> 外文期刊>Эκспериментальная и κлиничесκая фармаκология >Acute and chronic amiodarone effects on the dynamics of force-interval relationship in rat papillary muscle
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Acute and chronic amiodarone effects on the dynamics of force-interval relationship in rat papillary muscle

机译:急性和慢性胺碘酮对大鼠乳头肌肉中力间关系动态的影响

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摘要

Effects of acute and chronic amiodarone treatment on the force-interval relationship were investigated in rat papillary muscle. It was found that both acute and chronic amiodarone treatment decreased the amplitude of extrasystoles. At the same time, only short-term administgration of amiodarone increased postextrasystols and post-rest potentiations of twitch force in rat myocardium. It is concluded that the acute and chronic amiodarone treatment suppress the excitability of cardiomyocytes, but only the chronic treatment increases the effective refractory period. The results suggest that the acute administration of amiodarone can influence the intracellular calcium homeostasis.
机译:大鼠乳头状肌肉研究了急性和慢性胺碘酮处理对力间关系的影响。 发现急性和慢性胺碘酮处理均降低了额外溶剂的幅度。 同时,只有短期促进胺碘酮的疗效增加,大鼠心肌的术后术后醇和休息后强力。 得出结论,急性和慢性胺碘酮治疗抑制了心肌细胞的兴奋性,但只有慢性治疗增加了有效的耐火剂期。 结果表明,急性胺酮施用胺碘酮可以影响细胞内钙稳态。

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