Effects of saponin H isolated form Polygala tenuifolia Willd on isolated smooth muscle and heart / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 241-1999.
Article
in Chinese
| WPRIM
| ID: wpr-583576
ABSTRACT
OBJECTIVE:
To study the pharmacological effects of saponin H,a new saponin isolated from Polygala tenuifolia Willd,on isolated smooth muscle and herat.METHODS:
Isolated rabbit ileum,aorta strip,Langendorff heart,guinea pig trachea,and rat uterus were prepared.Their changes in tension 3 min after administration of H were recorded.RESULTS:
19 and 76 μmol.L-1of H showed contracting on above-mentioned smooth muscles,with increasing their tensions by 64% and 167%,30% and 118%,20% and 50%,100% and 118%,respectively.19,38 and 76μmol.L-1 of H showed dose-dependent inhibition on heart,decreased contractile force by 20%,23% and 34%,and reduced the heart rate by 17%,20% and 35%,respectively,but failed to affect the coronary flow.The contracting action of H on uterus was not influnced by diphenhydramine,but partly attenuated by indomethacin.CONCLUSION:
H excited the isolated smooth muscles but inhibited the heart.Its action on uterus was partly related to the activation of prostaglandin synthetase.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Pharmaceutical Journal
Year:
1999
Type:
Article
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