The spasmogenic effect of 11 biogenic polypeptides, 2 prostaglandins and 3 amines was assayed, in parallel, on the isolated seminal vesicles and deferent ducts of the rat, guinea pig and hamster. The smooth muscle preparations were contracted by most of the examined compounds, but none of the preparations appeared to be particularly sensitive, and not infrequently bioassay was made difficult by tachyphylaxis. Thus, the smooth muscle preparations of the male genital tract, although containing receptors for biogenic polypeptides and amines, cannot be considered as test objects of first choice in the qualitative and quantitative bioassay of these compounds.
The action of polypeptides, amines and prostaglandins on isolated smooth muscle preparations of seminal vesicles and deferent ducts / Negri, Lucia; G., Falconieri Erspamer; D., Piccinelli. - In: ARCHIVES INTERNATIONALES DE PHARMACODYNAMIE ET DE THERAPIE. - ISSN 0003-9780. - STAMPA. - 205:1(1973), pp. 23-28.
The action of polypeptides, amines and prostaglandins on isolated smooth muscle preparations of seminal vesicles and deferent ducts
NEGRI, Lucia;
1973
Abstract
The spasmogenic effect of 11 biogenic polypeptides, 2 prostaglandins and 3 amines was assayed, in parallel, on the isolated seminal vesicles and deferent ducts of the rat, guinea pig and hamster. The smooth muscle preparations were contracted by most of the examined compounds, but none of the preparations appeared to be particularly sensitive, and not infrequently bioassay was made difficult by tachyphylaxis. Thus, the smooth muscle preparations of the male genital tract, although containing receptors for biogenic polypeptides and amines, cannot be considered as test objects of first choice in the qualitative and quantitative bioassay of these compounds.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.