Characterization of the α1‐adrenoceptors of the rat prostate gland

Caroline Couldwell; Andrea Jackson; Helen O'Brien; Russell Chess‐Williams

doi:10.1111/j.2042-7158.1993.tb05623.x

Characterization of the α₁‐adrenoceptors of the rat prostate gland

Caroline Couldwell, Andrea Jackson, Helen O'Brien, Russell Chess‐Williams^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Research › peer-review

19 Citations (Scopus)

Abstract

Abstract— The α₁‐adrenoceptor‐mediated responses of the rat prostate to phenylephrine have been examined in‐vitro. Phenylephrine induced concentration‐dependent contractions of the isolated prostate gland which were antagonized by WB4101 (1–30 nm). Schild plot analysis of the antagonism yielded a straight line with a slope not significantly different from unity. The pK_B value of 9·2 was similar to that obtained for WB4101 on the rat vas deferens (9·4) but was greater than that obtained on the rat spleen (8·4). Chloroethyl‐clonidine depressed responses to phenylephrine of the rat spleen but not the prostate or the vas deferens. These results indicate that the rat prostate gland possesses a typical α_1A‐adrenoceptor similar to that found in the vas deferens. 1993 Royal Pharmaceutical Society of Great Britain

Original language	English
Pages (from-to)	922-924
Number of pages	3
Journal	Journal of Pharmacy and Pharmacology
Volume	45
Issue number	10
DOIs	https://doi.org/10.1111/j.2042-7158.1993.tb05623.x
Publication status	Published - Oct 1993
Externally published	Yes

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title = "Characterization of the α1‐adrenoceptors of the rat prostate gland",

abstract = "Abstract— The α1‐adrenoceptor‐mediated responses of the rat prostate to phenylephrine have been examined in‐vitro. Phenylephrine induced concentration‐dependent contractions of the isolated prostate gland which were antagonized by WB4101 (1–30 nm). Schild plot analysis of the antagonism yielded a straight line with a slope not significantly different from unity. The pKB value of 9·2 was similar to that obtained for WB4101 on the rat vas deferens (9·4) but was greater than that obtained on the rat spleen (8·4). Chloroethyl‐clonidine depressed responses to phenylephrine of the rat spleen but not the prostate or the vas deferens. These results indicate that the rat prostate gland possesses a typical α1A‐adrenoceptor similar to that found in the vas deferens. 1993 Royal Pharmaceutical Society of Great Britain",

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AU - Couldwell, Caroline

AU - Jackson, Andrea

AU - O'Brien, Helen

AU - Chess‐Williams, Russell

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N2 - Abstract— The α1‐adrenoceptor‐mediated responses of the rat prostate to phenylephrine have been examined in‐vitro. Phenylephrine induced concentration‐dependent contractions of the isolated prostate gland which were antagonized by WB4101 (1–30 nm). Schild plot analysis of the antagonism yielded a straight line with a slope not significantly different from unity. The pKB value of 9·2 was similar to that obtained for WB4101 on the rat vas deferens (9·4) but was greater than that obtained on the rat spleen (8·4). Chloroethyl‐clonidine depressed responses to phenylephrine of the rat spleen but not the prostate or the vas deferens. These results indicate that the rat prostate gland possesses a typical α1A‐adrenoceptor similar to that found in the vas deferens. 1993 Royal Pharmaceutical Society of Great Britain

AB - Abstract— The α1‐adrenoceptor‐mediated responses of the rat prostate to phenylephrine have been examined in‐vitro. Phenylephrine induced concentration‐dependent contractions of the isolated prostate gland which were antagonized by WB4101 (1–30 nm). Schild plot analysis of the antagonism yielded a straight line with a slope not significantly different from unity. The pKB value of 9·2 was similar to that obtained for WB4101 on the rat vas deferens (9·4) but was greater than that obtained on the rat spleen (8·4). Chloroethyl‐clonidine depressed responses to phenylephrine of the rat spleen but not the prostate or the vas deferens. These results indicate that the rat prostate gland possesses a typical α1A‐adrenoceptor similar to that found in the vas deferens. 1993 Royal Pharmaceutical Society of Great Britain

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Characterization of the α₁‐adrenoceptors of the rat prostate gland

Abstract

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