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Evaluation of chronic sodium overload and N-acetylcysteine or mesenchymal stem cells treatment in rats submitted to renal ischemia and reperfusion

Grant number: 13/25909-1
Support type:Regular Research Grants
Duration: August 01, 2014 - July 31, 2017
Field of knowledge:Health Sciences - Medicine - Medical Clinics
Principal Investigator:Luzia Naoko Shinohara Furukawa
Grantee:Luzia Naoko Shinohara Furukawa
Home Institution: Faculdade de Medicina (FM). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Ivone Braga de Oliveira ; Joel Claudio Heimann ; Maria Heloisa Massola Shimizu

Abstract

The acute kidney injury (AKI) can be defined as a sudden loss of renal function. AKI was considered as completely reversible, however recent studies have shown that the structure and renal function do not recover totally, and it is can contribute to chronic renal diseases development. It has been shown that overload of dietary sodium administered after renal ischemia and reperfusion (I/R) in animal models can cause hypertension and increased albuminuria. Taking together these effects and oxidative stress, inflammation and renal fibrosis could be factors account to the development of disease secondary to AKI. From this information, in order to understand the mechanism of the chronic kidney disease development, we propose to evaluate I/R during chronic consumption of salt and the role of renin angiotensin and aldosterone system (RAAS. Furthermore, we propose two distinct therapeutic treatments: N-acetylcysteine (NAC) administration or the mesenchymal stem cells (MSC) application after I/R in order to prevent, minimize or block the advance of secondary complications caused by I/R and submitted on sodium overload. NAC is a powerful antioxidant and is widely used due its lower cost and its fewer side effects. Due infiltrated of cells and vascular lesions present in AKI, the MSC can act as its paracrine anti-inflammation properties, immune modulation, pro-angiogenic, and also it's accelerate capacity in repair kidney cells by releasing growth factors and cytokines. Therefore, the aim of this study is to evaluate the effects of long term high salt intake on I/R renal in animal model and the therapeutic effects of NAC or MSC treatments. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ROMAO, CAROLINA MARTINEZ; PEREIRA, RAFAEL CANAVEL; MASSOLA SHIMIZU, MARIA HELOISA; SHINOHARA FURUKAWA, LUZIA NAOKO. N-acetyl-L-cysteine exacerbates kidney dysfunction caused by a chronic high-sodium diet in renal ischemia and reperfusion rats. Life Sciences, v. 231, AUG 15 2019. Web of Science Citations: 0.

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