Obestatin modulates ghrelin's effects on the basal and stimulated testosterone secretion by the testis of rat: an in vitro study

Title:

Obestatin modulates ghrelin's effects on the basal and stimulated testosterone secretion by the testis of rat: an in vitro study

Creator:

Afsar, T., Jahan, S., Razak, S., Almajwal, A., Abulmeaty, M., Wazir, H., and Majeed, A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4315f09a-f8bc-4c9f-901c-3a86f787a944
uuid:4315f09a-f8bc-4c9f-901c-3a86f787a944
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, testosteron, rozmnožování (biologie), testosterone, reproduction, obestatin, ghrelin, hCG, testicular strips, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The functional antagonism between obestatin and ghrelin in the testis is under investigation. We investigated the ability of obestatin to counteract the inhibitory effect of ghrelin on basal and stimulated testosterone (T) secretion in vitro. Testicular strips from adult rats were incubated with 10 ng/ml and 100 ng /ml of obestatin alone, ghrelin alone and obestatin + ghrelin. Obestatin modulation of stimulated T secretion was evaluated by incubation of testicular samples with 10 ng/ml and 100 ng/ml obestatin, ghrelin and obestatin + ghrelin in the absence and presen ce of 10 IU of human chorionic gonadotrophin (hCG). T concentrations in the hCG treated groups were significantly (P<0.0001) higher than those in the control groups. Obestatin caused a significant increase in basal T secretion in a dose-dependent manner; however, obestatin at the both 10 ng /ml and 100 ng/ml significantly (P<0.0001) in creased hCG-stimulated T secretion. In contrast, ghrelin in a dose-dependent manner significantly (P<0.001) decreased both basal and hCG-induced T secretion by testicular slices. Obestatin opposed the inhibitory effect of ghrelin on T secretion under both basal and hCG-stimulated conditions at all doses tested. In conclusions, administration of obestatin was able to antagonize the inhibitory effect of ghrelin on testosterone secretion in vitro ., T. Afsar, S. Jahan, S. Razak, A. Almajwal, M. Abulmeaty, H. Wazir, A. Majeed., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

Physiological research | 2017 Volume:66 | Number:1

Harvested from:

CDK

Metadata only:

false