Monday, December 1, 2025

Role of NAD(P)H Oxidase in Superoxide Generation and Endothelial Dysfunction in Goto-Kakizaki (GK) Rats as a Model of Nonobese NIDDM

Authors: Sachin Gupte, Nazar Labinskyy, Rakhee Gupte, Anna Csiszar, Zoltan Ungvari, John G. Edwards

DOI: 10.1371/journal.pone.0011800

Abstract Summary

Chronic hyperglycemia triggers vascular dysfunction through NADPH oxidase-driven superoxide production, not increased enzyme expression. In diabetic rats, elevated superoxide levels impaired blood vessel relaxation—a key marker of endothelial dysfunction. Crucially, blocking superoxide with apocynin reversed this damage, suggesting NADPH oxidase activation as a therapeutic target for preventing cardiovascular complications in diabetes.

Why Brain? 🧠

Chronic hyperglycemia in diabetic rats causes vascular dysfunction through increased superoxide production via NADPH oxidase activation, not increased enzyme expression, offering new therapeutic targets.


The image is AI-generated for illustrative purposes only. Courtesy of Midjourney.

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