Artículo
Altered expression of Aquaporin-2 in one-kidney, one-clip hypertension
Albertoni Borghese, Maria Florencia
; Hope, Sandra Ingrid; Ortiz, Maria del Carmen; Barchuk, Magalí
; Kessler, Camila; Davio, Carlos Alberto
; Vatta, Marcelo Sergio
; Majowicz, Mónica Patricia
Fecha de publicación:
09/2018
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Life Sciences
ISSN:
0024-3205
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Aims: The aim of the present study was to evaluate the regulation of Aquaporin-2 (AQP2) water channel in the kidney of one-kidney, one-clip rats (Goldblatt-1 model). In addition, some mechanisms that underlie the role of AQP2 in the Goldblatt-1 model were evaluated. Main methods: Sprague-Dawley rats were divided in three groups: control two-kidney, no clip (C, 2 K-NC); nephrectomized one-kidney, no clip (N, 1 K-NC) and Goldblatt one-kidney, one-clip (G, 1 K-1C). AQP2 expression (by westernblot, real time PCR, immunohistochemistry and immunofluorescence), vasopressin V2 receptor expression (by real time PCR), cAMP concentration, NFkB and TonEBP (cytosol to nucleus ratio) were evaluated in the renal medulla. Key findings: AQP2 expression, V2 receptor expression and cAMP concentration were decreased in the renal medulla of 1 K-1C rats, NFkB translocation was favoured towards the nucleus suggesting its activation while TonEBP translocation was not altered in this model of hypertension. Significance: In this model of hypertension the decrease of AQP2 expression could be a mechanism that counteracts the high blood pressure promoting water excretion and this may be consequence of decreased vasopressin sensitivity and/or the increased activity of NFkB at renomedullary collecting duct level. Given that renovascular hypertension is among the most common causes of secondary hypertension, it is important to elucidate all the relevant mechanisms involved in the generation or in the compensation of the hypertensive state in order to improve the diagnoses and treatment of the patients.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IQUIMEFA)
Articulos de INST.QUIMICA Y METABOLISMO DEL FARMACO (I)
Articulos de INST.QUIMICA Y METABOLISMO DEL FARMACO (I)
Articulos(OCA HOUSSAY)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA HOUSSAY
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA HOUSSAY
Citación
Albertoni Borghese, Maria Florencia; Hope, Sandra Ingrid; Ortiz, Maria del Carmen; Barchuk, Magalí; Kessler, Camila; et al.; Altered expression of Aquaporin-2 in one-kidney, one-clip hypertension; Pergamon-Elsevier Science Ltd; Life Sciences; 208; 9-2018; 72-78
Compartir
Altmétricas