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Science 4 May 1979:
Vol. 204. no. 4392, pp. 519 - 521
DOI: 10.1126/science.432657
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Articles

Science, Vol 204, Issue 4392, 519-521
Copyright © 1979 by American Association for the Advancement of Science

articles

Teleostean urophysis: urotensin II and ion transport across the isolated skin of a marine teleost

WS Marshall and HA Bern

The caudal neurosecretory peptide urotensin II rapidly inhibits by 30 percent the short-circuit current across the isolated skin of a marine teleost. The effect appears to be specific and cannot be attributed to actions of epinephrine, urotensin I, or arginine vasotocin. The results strongly suggest that urotensin II may act directly on ion-transporting cells involved in teleostean hypoosmoregulation.


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