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In vitro effects of prolactin and cortisol on water permeability of the urinary bladder of the teleostGillichthys mirabilis

✍ Scribed by Doneen, Byron A. ;Bern, Howard A.

Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
276 KB
Volume
187
Category
Article
ISSN
0022-104X

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✦ Synopsis

Abstract

Urinary bladders of the euryhaline teleost Gillichthys mirabilis were maintained in organ culture under defined conditions for four days. Examination of bladders cultured in medium containing cortisol or prolactin or both hormones indicates that cortisol increases bladder water permeability and that prolactin antagonizes the cortisol effect, causing a reduction in water permeability. Bladders co‐cultured with teleost pituitaries or with teleost rostral pars distalis is show a pronounced reduction in osmotic permeability. The effects of prolactin and cortisol in vivo appear to be reproducible in vitro.

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