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Current Diabetes Reviews

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ISSN (Print): 1573-3998
ISSN (Online): 1875-6417

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Research Article

Downregulation of Tnf-α and Cat Expression in a Wistar Rat Diabetic Model during Diabetes Onset

In Press, (this is not the final "Version of Record"). Available online 20 June, 2024
Author(s): Catherine Giovanna Costas Arcia, Jessica Freitas Araujo Encinas, Joyce Regina Santos Raimundo, Katharyna Cardoso de Gois, Beatriz da Costa Aguiar Alves, Matheus Moreira Perez, Thais Moura Gascon, Fernando Luiz Affonso Fonseca and Glaucia Luciano da Veiga*
Published on: 20 June, 2024

Article ID: e200624231125

DOI: 10.2174/0115733998264880230919062657

Price: $95

Abstract

Introduction: Diabetes Mellitus (DM) is a metabolic disorder characterized by persistent hyperglycemia and/or insulin resistance. If left uncontrolled, it can lead to a combination of cardiac and renal alterations known as cardiorenal syndrome. Additionally, oxidative stress and inflammation contribute to tissue damage, thereby reducing the life expectancy of individuals with diabetes.

Aim: The aim of this study was to identify early molecular markers associated with cardiorenal syndrome, oxidative stress, and inflammation, and to investigate their correlation with the duration of exposure to DM.

Methods: An experimental DM model was employed using Wistar rats. The rats were divided into four groups: diabetic rats at 7 days (DM7), diabetic rats at 30 days (DM30), control sham at 7 days (CS7), and control sham at 30 days (CS30). Blood and brain tissue from the brainstem region were collected at 7 and 30 days after confirming DM induction. Gene expression analysis of Bnp, Anp, Cat, Gpx, Sod, Tnf-α, and Il-6 was performed.

Results: The analysis revealed lower expression values of Cat in the brainstem tissue of the DM7 group compared to the NDS7 group. Moreover, diabetic animals exhibited statistically lower levels of Tnf-α in their peripheral blood compared to the control animals.

Conclusion: This study concluded that DM alters the oxidative balance in the brainstem after 7 days of DM induction, resulting in lower Cat expression levels. Although some genes did not show statistical differences after 30 days of DM induction, other genes exhibited no expression values, indicating possible gene silencing. The study identified an imbalance in the studied pathways and concluded that the organism undergoes a compensatory state in response to the initial metabolic alterations caused by DM.

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