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- W2043074361 abstract "The mechanism(s) of the development of response to catecholamines (CA) by Leydig cells in culture was investigated with the use of primary culture of purified Leydig cells of adult rats. The interactions of a CA agonist, isoproterenol (ISOP), with luteinizing hormone (LH) and a luteinizing hormone-releasing hormone agonist analog (LHRHa) on production of androgen by the Leydig cells were also studied. Cells incubated with ISOP for 3 h increased release of cyclic adenosine 3′,5′-monophosphate (cAMP) to similar extents at 0, 3, and 24 h of culture. The β-agonist did not increase androgen release at 0 h but had a concentration-dependent effect at 3, 24, and 48 h of culture, with maximal effects at 24 h. LH stimulated high increases in production of cAMP and androgen by the cells at 0–24 h of culture. Leydig cell β-receptors decreased with culture time. Low concentrations but not high levels of LH had additive effects with ISOP on androgen release. ISOP showed a complex interaction with LHRHa on androgen release. Chronic exposure of Leydig cells to LHRHa reduced basal androgen release as well as release of androgen stimulated by ISOP, forskolin, and LH. These studies suggest that the development of response to CA by rat Leydig cells is a postreceptor, postcAMP event and showed that CA can interact with LH or LHRH to regulate Leydig cell function." @default.
- W2043074361 created "2016-06-24" @default.
- W2043074361 creator A5034192537 @default.
- W2043074361 date "1986-11-01" @default.
- W2043074361 modified "2023-09-25" @default.
- W2043074361 title "Catecholamine stimulation of androgen production by rat Leydig cells. Interactions with luteinizing hormone and luteinizing hormone-releasing hormone" @default.
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- W2043074361 doi "https://doi.org/10.1095/biolreprod35.4.806" @default.
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