Mineralocorticoid receptor blockade improved gut microbiota dysbiosis by reducing gut sympathetic tone in spontaneously hypertensive rats
Metadatos
Afficher la notice complèteAuteur
González Correa, Cristina; Moleón Moya, Javier; Miñano, Sofía; Sánchez Santos, Manuel; Gómez Guzmán, Manuel; Jiménez Moleón, Rosario; Romero Pérez, Miguel; Duarte Pérez, Juan ManuelEditorial
Elsevier
Materia
Spironolactone Gut dysbiosis Oxidative stress Inflammation SHR
Date
2022-12-23Referencia bibliográfica
C. González-Correa et al. Mineralocorticoid receptor blockade improved gut microbiota dysbiosis by reducing gut sympathetic tone in spontaneously hypertensive rats.Biomedicine & Pharmacotherapy 158 (2023) 114149[https://doi.org/10.1016/j.biopha.2022.114149]
Patrocinador
Comision Interministerial de Ciencia y Tecnologia, Ministerio de Economia y competitividad PID2020-116347RB-I00; Junta de Andalucia CTS 164 P20_00193 A-CTS-318-UGR20; European Commission; Ministerio de Economia y Competitividad, Instituto de Salud Carlos III (CIBER-CV), Spain; European Union (Fondo Europeo de Desarrollo Regional, FEDER, "FEDER una manera de hacer Europa")Résumé
Microbiota has a crucial role in the host blood pressure (BP) regulation. The present study analyzes whether the
mineralocorticoid receptor antagonist spironolactone ameliorates the dysbiosic state in a genetic model of
neurogenic hypertension. Twenty-week-old male Wistar Kyoto rats (WKY) and spontaneously hypertensive rats
(SHR) were randomly allocated into three groups: untreated WKY, untreated SHR, and SHR treated with spi ronolactone for 5 weeks. Spironolactone restored the Firmicutes/Bacteroidetes proportion, and acetate producing bacteria populations to WKY levels. Spironolactone reduced the percentage of intestinal aerobic
bacteria. The amelioration of gut dysbiosis was linked to a reduction in the gut pathology, an enhanced colonic
integrity, a reduced gut permeability and an attenuated sympathetic drive in the gut. Spironolactone was unable
to reduce neuroinflammation and oxidative stress in the paraventricular nuclei in the hypothalamus. Spi ronolactone reduced the higher Th17 cells proportion in mesenteric lymph nodes and Th17 infiltration in aorta,
improved aortic endothelial function and reduced systolic BP. This study demonstrates for the first time that
spironolactone reduces gut dysbiosis in SHR. This effect could be related to its capability to improve gut integrity
and pathology due to reduced sympathetic drive in the gut.