Control of Water Movement in Flounder Urinary Bladder by Prolactin

THE role of the amphibian urinary bladder in osmoregulation is well documented 1,2 . In fish, however, maintenance of water and ion balance has been attributed almost entirely to the gill, kidney and intestine. Modification of ionic composition has been reported in the bladder urine of Lophius ameri...

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Bibliographic Details
Published in:Nature (London) 1971-04, Vol.230 (5294), p.469-471
Main Authors: HIRANO, TETSUYA, JOHNSON, DONALD W, BERN, HOWARD A
Format: Article
Language:English
Subjects:
Animals
Biological Transport, Active
Cell Membrane Permeability
Fishes
Humanities and Social Sciences
letter
multidisciplinary
Osmolar Concentration
Prolactin - pharmacology
Science
Science (multidisciplinary)
Seawater
Sodium - metabolism
Urinary Bladder - drug effects
Urinary Bladder - metabolism
Water
Water-Electrolyte Balance - drug effects
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Summary:THE role of the amphibian urinary bladder in osmoregulation is well documented 1,2 . In fish, however, maintenance of water and ion balance has been attributed almost entirely to the gill, kidney and intestine. Modification of ionic composition has been reported in the bladder urine of Lophius americanus 3 , Platichthys flesus 4 and Opsanus tau 5 , and there has been one report of a transient effect of arginine vasotocin on water reabsorption from the bladder of Tilapia mossambica 6 ; there has, however, been no direct Physiological evidence of osmoregulatory activity of the teleost urinary bladder.
ISSN:0028-0836
1476-4687
DOI:10.1038/230469a0