Beneficial Effects of the Angiotensin-Converting Enzyme 2 Activator Dize in Renovascular Hypertension

Author(s): Lucas Miranda Kangussu*, Tatiane Cristine S. de Almeida, Thiago Ruiz R. Prestes, Marilda Luz de Andrade De Maria, Roberta da Silva Filha, Maria Aparecida Ribeiro Vieira, Ana Cristina Simões e Silva, Anderson José Ferreira*

Journal Name: Protein & Peptide Letters

Volume 26 , Issue 7 , 2019

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Graphical Abstract:


Background: Angiotensin Converting Enzyme (ACE) 2 is an important modulator of the Renin Angiotensin System (RAS) and the RAS plays a central role in renovascular hypertension. Very few studies investigated the role of components of the counterregulatory RAS axis (ACE2, Ang-(1-7) and Mas receptor) in renovascular hypertension and the results are controversial.

Objective: The aim of this study was to investigate the effects of Diminazene Aceturate (DIZE) administration on renal function and renal inflammation parameters in 2K1C hypertensive rats.

Methods: Male Wistar rats were divided into three experimental groups: sham-operated animals, 2K1C+saline and 2K1C+DIZE orally (1 mg/kg/day). At the end of the 30 days of treatment, renal function was analyzed and kidneys from all the groups were collected and processed separately for measurement of N-acetyl-beta-D-glucosaminidase (NAG) and Myeloperoxidase (MPO) activities, cytokines, chemokines and nitric oxide levels.

Results: Oral DIZE administration for 4 weeks in hypertensive rats attenuated renal dysfunction and reduced the levels of MPO and NAG, cytokines and chemokines (IL1β, IL-6, TNF-α and MCP-1) and increased urinary nitrate/nitrite levels in 2K1C hypertensive rats.

Conclusion: Our findings showed that ACE2 activation may effectively improve renal alterations and inflammation induced by renovascular hypertension.

Keywords: ACE2 activation, diminazene aceturate, angiotensin-(1-7), renoprotection, renovascular hypertension, renin angiotensin system.

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Year: 2019
Published on: 05 April, 2019
Page: [523 - 531]
Pages: 9
DOI: 10.2174/0929866526666190405123422
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