Positive inotropic action of dimethylamiloride in normal rat isolated hearts and papillary muscle and its primary mechanism / 中国药理学通报
Chinese Pharmacological Bulletin
;
(12)2003.
Article
in Chinese
| WPRIM
| ID: wpr-562712
ABSTRACT
Aim To study the inotropic action of DMA in normal rat isolated hearts and papillary muscle and search for its primary mechanism.Methods With Lansendorff-perfusion and isolated papillary muscle perfusion,cardiac performance and the systolic function of papillary muscle were measured to estimate the inotropic action of DMA;L-calcium channel blocker and sodium calcium exchanger(NCX)inhibitor were used to search for its primary mechanism.Results ①(1~20)?mol?L-1 DMA exerted a positive inotropic action in normal rat isolated hearts,that is in Langendorff-perfused hearts,DMA enhanced cardiac performance,i.e.LVSP-LVDP,+dp/dtmax,-dp/dtmax significantly(P
Full text:
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Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Pharmacological Bulletin
Year:
2003
Type:
Article
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