ArticleAntioxidants (Basel, Switzerland)2026
Caloric Restriction Attenuates Gentamicin-Induced Acute Kidney Injury and Is Associated with Changes in Oxidative Stress and Mitochondrial DNA Damage.
Article in Antioxidants (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Caloric restriction (CR) is known to activate a broad spectrum of cytoprotective signaling pathways and enhance tissue tolerance to various stressors, including those associated with the cytotoxic effects of pharmaceutical agents. Nephrotoxic drugs, such as aminoglycoside antibiotics, remain a major clinical concern due to their frequent use and potential to cause acute kidney injury (AKI), for which effective preventive strategies are still limited. In this study, we investigated whether CR applied for 5 weeks (4-week pretreatment + 1-week concurrent with AKI induction) can alleviate AKI triggered by the antibiotic gentamicin, with a focus on evaluating changes in antioxidant-related parameters and autophagy-associated signaling during CR-mediated nephroprotection. CR's nephroprotective effects were evaluated using diagnostic assays, Western blotting, and histological analysis. Additionally, oxidative stress markers and mitochondrial integrity were assessed to analyze the impact of CR on antioxidant-related pathways. CR significantly improved renal function and structure, with reduced kidney injury markers (KIM-1, NGAL) and alleviated histological damage. Critically, CR mitigated oxidative stress, evidenced by decreased thiobarbituric acid reactive substances (TBARS) and protein carbonylation, as well as increased levels of the reduced form of glutathione and activity of glutathione peroxidase (GPx). A lowered Bcl-X
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