Effects of Naftopidil' ramification-BWYJ on intracellularlar free Ca~(2+) in smooth cells / 中国临床药理学与治疗学
Chinese Journal of Clinical Pharmacology and Therapeutics
;
(12)2004.
Article
in Chinese
| WPRIM
| ID: wpr-556902
ABSTRACT
AIM:
To observed the effects of BWYJ (a naftopidil ramification) on intracellularlar free Ca~(2+)([Ca~(2+)]_i) in smooth cells (SMCs) in order to further explore its vasodilative mechanisms.METHODS:
The [Ca~(2+)]_i was determined with the Fura-2/AM loaded SMCs in aorta of rabbit, and the effects of BWYJ on the elevation induced by NA, and high potassium and 5-HT were observe.RESULTS:
In the Fura-2/AM loaded SMCs, BWYJ had no effect on the resting [Ca~(2+)]_i, but it reduced the increase of [Ca~(2+)]_i induced by NA and 5-HT, and there was no influence on the increase of [Ca~(2+)]_i induced by high potassium.CONCLUSION:
The vasodilative mechanisms of BWYJ may be related to its inhibitive effects on the Ca~(2+)-influx and Ca~(2+)-release mediated by ?_1- and 5-HT_(2A) receptors. It inhibits the release of intracellular calcium, and the result is it decrease the [Ca~(2+)]_i in SMCs.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Clinical Pharmacology and Therapeutics
Year:
2004
Type:
Article
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