SCH00013, a novel Ca(2+) sensitizer with positive inotropic and no chronotropic action in heart failure.
SCH00013, a novel Ca(2+) sensitizer with positive inotropic and no chronotropic action in heart failure.
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SCH00013,一种新型 Ca(2) 敏化剂,对心力衰竭具有正性肌力作用,但无变时作用。
DOI:
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发表时间:
2005
影响因子:
3.5
通讯作者:
T. Sasaguri
中科院分区:
文献类型:
--
作者:
N. Tadano;S. Morimoto;A. Yoshimura;M. Miura;K. Yoshioka;M. Sakato;I. Ohtsuki;Y. Miwa;F. Takahashi;T. Sasaguri
We investigated the effects of the agent SCH00013 on Ca(2+)-induced force generation in rabbit skinned cardiac muscle fibers and in vivo cardiac function in high-pacing-induced heart failure dogs. The Ca(2+)-induced force generation in skinned cardiac muscle fibers was determined at pH 6.2 - 7.4, and SCH00013 was found to have a significant Ca(2+) sensitizing effect at pH 7.2 to 7.4. There was no significant difference in the Ca(2+) sensitizing action between the enantiomers of SCH00013. The Ca(2+) sensitizing effect of SCH00013 was dependent on the sarcomere length, being significant only at a long sarcomere length. SCH00013 elicited a positive inotropic effect at more than 0.3 and 1 mg/kg, i.v. in normal and heart failure dogs, respectively, with no chronotropic action. These results strongly suggested that SCH00013 is a novel Ca(2+) sensitizer that elicits a positive inotropic and no chronotropic effect in heart failure, probably through enhancing the Frank-Starling mechanism.
DOI:
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发表时间:
1988
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
Fujino,K;Sperelakis,N;Solaro,RJ
通讯作者:
Solaro,RJ
影响因子:
37.8
作者:
Katz,AM
通讯作者:
Katz,AM