Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum

1. 1. Systemic administration of angiotensin II (10 μg/kg) to fully hydrated toads decreased urine production but did not affect natripheric or hydrosmotic water fluxes across the skin. 2. 2. The antidiuretic response was not modified by the simultaneous α-adrenergic blocking with tolazoline (5 mg/k...

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Publicado: 1989
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03009629_v93_n3_p505_Reboreda
http://hdl.handle.net/20.500.12110/paper_03009629_v93_n3_p505_Reboreda
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spelling paper:paper_03009629_v93_n3_p505_Reboreda2023-06-08T15:27:46Z Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum angiotensin saralasin tolazoline animal experiment controlled study fluid balance intracerebroventricular drug administration intralymphatic drug administration male nonhuman osmoregulation toad uropoiesis 1. 1. Systemic administration of angiotensin II (10 μg/kg) to fully hydrated toads decreased urine production but did not affect natripheric or hydrosmotic water fluxes across the skin. 2. 2. The antidiuretic response was not modified by the simultaneous α-adrenergic blocking with tolazoline (5 mg/kg). 3. 3. In a similar way, single intracerebroventricular injections of 1 μl 10-4M angiotensin II, decreased urine production but did not affect water uptake. 4. 4. Finally, systemic injections of the angiotensin blocker salarasin (100 μg/kg) did not affect the cutaneous hydrosmotic response of dehydrated toads. 5. 5. We conclude that angiotensin II has no effects on water uptake in this species. The antidiuretic response to angiotensin II, and the involvement of adrenergic mechanisms are discussed. © 1989. 1989 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03009629_v93_n3_p505_Reboreda http://hdl.handle.net/20.500.12110/paper_03009629_v93_n3_p505_Reboreda
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic angiotensin
saralasin
tolazoline
animal experiment
controlled study
fluid balance
intracerebroventricular drug administration
intralymphatic drug administration
male
nonhuman
osmoregulation
toad
uropoiesis
spellingShingle angiotensin
saralasin
tolazoline
animal experiment
controlled study
fluid balance
intracerebroventricular drug administration
intralymphatic drug administration
male
nonhuman
osmoregulation
toad
uropoiesis
Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum
topic_facet angiotensin
saralasin
tolazoline
animal experiment
controlled study
fluid balance
intracerebroventricular drug administration
intralymphatic drug administration
male
nonhuman
osmoregulation
toad
uropoiesis
description 1. 1. Systemic administration of angiotensin II (10 μg/kg) to fully hydrated toads decreased urine production but did not affect natripheric or hydrosmotic water fluxes across the skin. 2. 2. The antidiuretic response was not modified by the simultaneous α-adrenergic blocking with tolazoline (5 mg/kg). 3. 3. In a similar way, single intracerebroventricular injections of 1 μl 10-4M angiotensin II, decreased urine production but did not affect water uptake. 4. 4. Finally, systemic injections of the angiotensin blocker salarasin (100 μg/kg) did not affect the cutaneous hydrosmotic response of dehydrated toads. 5. 5. We conclude that angiotensin II has no effects on water uptake in this species. The antidiuretic response to angiotensin II, and the involvement of adrenergic mechanisms are discussed. © 1989.
title Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum
title_short Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum
title_full Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum
title_fullStr Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum
title_full_unstemmed Water balance effects of systemic and intracerebroventricular administration of angiotensin II in the toad Bufo arenarum
title_sort water balance effects of systemic and intracerebroventricular administration of angiotensin ii in the toad bufo arenarum
publishDate 1989
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03009629_v93_n3_p505_Reboreda
http://hdl.handle.net/20.500.12110/paper_03009629_v93_n3_p505_Reboreda
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