AT1 receptor role in the hypothalamic and renal function interaction

Autores
Celia, Ruberto; Occhieppo, Victoria Belen; Bregonzio Diaz, Claudia; Baiardi, Gustavo Carlos
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Angiotensin II (ANG II) is involved in renal sodium homeostasis under normal and pathological conditions in close relation with the sympathetic nervous system. Vasopressin, a hormone that modulates renal sodium and water reabsorption, is synthesized and released in the supraoptic and paraventricular nucleus under the influence of ANG II. We hypothesized that brain ANG II (AT1) receptors regulate renal sodium and water reabsorption and excretion through the sympathetic nervous system. In this study, male Wistar rats with renal denervation/sham were fed a hypersodic (4%) or normal (0.4%) diet and evaluated during 5 days in metabolic cages. On day 5, they were injected in the lateral ventricle with an AT1 receptor antagonist, losartan, and sacrificed 12 h later; blood samples and brains were obtained for evaluation. The urine was collected daily. The neuronal activation was analyzed in the nucleus of the supraoptic, paraventricular, subfornical, and organum vasculosum of the lamina terminalis. Activation of vasopressin neurons was evaluated in the supraoptic nucleus. Depending on renal nerve integrity, the hypersodic diet or losartan administration differentially affected neuronal activation. In sham animals, losartan prevented the stimulatory effects induced by the hypersodic diet in water intake and the neuronal activation in vasopressin-positive neurons. Renal denervation modified the effect of the hypersodic diet on water intake, urinary volume, and creatinine excretion, and losartan administration was able to prevent these alterations. Food intake was similar in all groups. Our results suggest that brain AT1 receptors regulate renal sodium and water reabsorption through the sympathetic nervous system in close interaction with vasopressin.
Fil: Celia, Ruberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Occhieppo, Victoria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Farmacología Experimental de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Farmacología Experimental de Córdoba; Argentina
Fil: Bregonzio Diaz, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Farmacología Experimental de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Farmacología Experimental de Córdoba; Argentina
Fil: Baiardi, Gustavo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Materia
RENAL DENERVATION
KIDNEY
VASOPRESSIN
LOSARTAN
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/230571
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/230571
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling AT1 receptor role in the hypothalamic and renal function interactionCelia, RubertoOcchieppo, Victoria BelenBregonzio Diaz, ClaudiaBaiardi, Gustavo CarlosRENAL DENERVATIONKIDNEYVASOPRESSINLOSARTANhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Angiotensin II (ANG II) is involved in renal sodium homeostasis under normal and pathological conditions in close relation with the sympathetic nervous system. Vasopressin, a hormone that modulates renal sodium and water reabsorption, is synthesized and released in the supraoptic and paraventricular nucleus under the influence of ANG II. We hypothesized that brain ANG II (AT1) receptors regulate renal sodium and water reabsorption and excretion through the sympathetic nervous system. In this study, male Wistar rats with renal denervation/sham were fed a hypersodic (4%) or normal (0.4%) diet and evaluated during 5 days in metabolic cages. On day 5, they were injected in the lateral ventricle with an AT1 receptor antagonist, losartan, and sacrificed 12 h later; blood samples and brains were obtained for evaluation. The urine was collected daily. The neuronal activation was analyzed in the nucleus of the supraoptic, paraventricular, subfornical, and organum vasculosum of the lamina terminalis. Activation of vasopressin neurons was evaluated in the supraoptic nucleus. Depending on renal nerve integrity, the hypersodic diet or losartan administration differentially affected neuronal activation. In sham animals, losartan prevented the stimulatory effects induced by the hypersodic diet in water intake and the neuronal activation in vasopressin-positive neurons. Renal denervation modified the effect of the hypersodic diet on water intake, urinary volume, and creatinine excretion, and losartan administration was able to prevent these alterations. Food intake was similar in all groups. Our results suggest that brain AT1 receptors regulate renal sodium and water reabsorption through the sympathetic nervous system in close interaction with vasopressin.Fil: Celia, Ruberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Occhieppo, Victoria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Farmacología Experimental de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Farmacología Experimental de Córdoba; ArgentinaFil: Bregonzio Diaz, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Farmacología Experimental de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Farmacología Experimental de Córdoba; ArgentinaFil: Baiardi, Gustavo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaAccScience Publishing2023-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/230571Celia, Ruberto; Occhieppo, Victoria Belen; Bregonzio Diaz, Claudia; Baiardi, Gustavo Carlos; AT1 receptor role in the hypothalamic and renal function interaction; AccScience Publishing; advanced neurology; 2; 2; 5-2023; 1-142810-9619CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://accscience.com/journal/AN/2/2/10.36922/an.393info:eu-repo/semantics/altIdentifier/doi/10.36922/an.393info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:27:17Zoai:ri.conicet.gov.ar:11336/230571instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-12-23 13:27:17.943CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv AT1 receptor role in the hypothalamic and renal function interaction
title AT1 receptor role in the hypothalamic and renal function interaction
spellingShingle AT1 receptor role in the hypothalamic and renal function interaction
Celia, Ruberto
RENAL DENERVATION
KIDNEY
VASOPRESSIN
LOSARTAN
title_short AT1 receptor role in the hypothalamic and renal function interaction
title_full AT1 receptor role in the hypothalamic and renal function interaction
title_fullStr AT1 receptor role in the hypothalamic and renal function interaction
title_full_unstemmed AT1 receptor role in the hypothalamic and renal function interaction
title_sort AT1 receptor role in the hypothalamic and renal function interaction
dc.creator.none.fl_str_mv Celia, Ruberto
Occhieppo, Victoria Belen
Bregonzio Diaz, Claudia
Baiardi, Gustavo Carlos
author Celia, Ruberto
author_facet Celia, Ruberto
Occhieppo, Victoria Belen
Bregonzio Diaz, Claudia
Baiardi, Gustavo Carlos
author_role author
author2 Occhieppo, Victoria Belen
Bregonzio Diaz, Claudia
Baiardi, Gustavo Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv RENAL DENERVATION
KIDNEY
VASOPRESSIN
LOSARTAN
topic RENAL DENERVATION
KIDNEY
VASOPRESSIN
LOSARTAN
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Angiotensin II (ANG II) is involved in renal sodium homeostasis under normal and pathological conditions in close relation with the sympathetic nervous system. Vasopressin, a hormone that modulates renal sodium and water reabsorption, is synthesized and released in the supraoptic and paraventricular nucleus under the influence of ANG II. We hypothesized that brain ANG II (AT1) receptors regulate renal sodium and water reabsorption and excretion through the sympathetic nervous system. In this study, male Wistar rats with renal denervation/sham were fed a hypersodic (4%) or normal (0.4%) diet and evaluated during 5 days in metabolic cages. On day 5, they were injected in the lateral ventricle with an AT1 receptor antagonist, losartan, and sacrificed 12 h later; blood samples and brains were obtained for evaluation. The urine was collected daily. The neuronal activation was analyzed in the nucleus of the supraoptic, paraventricular, subfornical, and organum vasculosum of the lamina terminalis. Activation of vasopressin neurons was evaluated in the supraoptic nucleus. Depending on renal nerve integrity, the hypersodic diet or losartan administration differentially affected neuronal activation. In sham animals, losartan prevented the stimulatory effects induced by the hypersodic diet in water intake and the neuronal activation in vasopressin-positive neurons. Renal denervation modified the effect of the hypersodic diet on water intake, urinary volume, and creatinine excretion, and losartan administration was able to prevent these alterations. Food intake was similar in all groups. Our results suggest that brain AT1 receptors regulate renal sodium and water reabsorption through the sympathetic nervous system in close interaction with vasopressin.
Fil: Celia, Ruberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Occhieppo, Victoria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Farmacología Experimental de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Farmacología Experimental de Córdoba; Argentina
Fil: Bregonzio Diaz, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Farmacología Experimental de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Farmacología Experimental de Córdoba; Argentina
Fil: Baiardi, Gustavo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
description Angiotensin II (ANG II) is involved in renal sodium homeostasis under normal and pathological conditions in close relation with the sympathetic nervous system. Vasopressin, a hormone that modulates renal sodium and water reabsorption, is synthesized and released in the supraoptic and paraventricular nucleus under the influence of ANG II. We hypothesized that brain ANG II (AT1) receptors regulate renal sodium and water reabsorption and excretion through the sympathetic nervous system. In this study, male Wistar rats with renal denervation/sham were fed a hypersodic (4%) or normal (0.4%) diet and evaluated during 5 days in metabolic cages. On day 5, they were injected in the lateral ventricle with an AT1 receptor antagonist, losartan, and sacrificed 12 h later; blood samples and brains were obtained for evaluation. The urine was collected daily. The neuronal activation was analyzed in the nucleus of the supraoptic, paraventricular, subfornical, and organum vasculosum of the lamina terminalis. Activation of vasopressin neurons was evaluated in the supraoptic nucleus. Depending on renal nerve integrity, the hypersodic diet or losartan administration differentially affected neuronal activation. In sham animals, losartan prevented the stimulatory effects induced by the hypersodic diet in water intake and the neuronal activation in vasopressin-positive neurons. Renal denervation modified the effect of the hypersodic diet on water intake, urinary volume, and creatinine excretion, and losartan administration was able to prevent these alterations. Food intake was similar in all groups. Our results suggest that brain AT1 receptors regulate renal sodium and water reabsorption through the sympathetic nervous system in close interaction with vasopressin.
publishDate 2023
dc.date.none.fl_str_mv 2023-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/230571
Celia, Ruberto; Occhieppo, Victoria Belen; Bregonzio Diaz, Claudia; Baiardi, Gustavo Carlos; AT1 receptor role in the hypothalamic and renal function interaction; AccScience Publishing; advanced neurology; 2; 2; 5-2023; 1-14
2810-9619
CONICET Digital
CONICET
url http://hdl.handle.net/11336/230571
identifier_str_mv Celia, Ruberto; Occhieppo, Victoria Belen; Bregonzio Diaz, Claudia; Baiardi, Gustavo Carlos; AT1 receptor role in the hypothalamic and renal function interaction; AccScience Publishing; advanced neurology; 2; 2; 5-2023; 1-14
2810-9619
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://accscience.com/journal/AN/2/2/10.36922/an.393
info:eu-repo/semantics/altIdentifier/doi/10.36922/an.393
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv AccScience Publishing
publisher.none.fl_str_mv AccScience Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.952241

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