Computational Analysis of Antioxidant Effects on Stress Response Mechanisms in Candida albicans

Sublethal hydrogen peroxide treatment in Candida albicans significantly regulates Sir2 and SIRT3 expression, linking NAD-dependent deacetylases to oxidative stress adaptation.

• Why it matters: Oxidative stress and aging pathways need tractable targets, and Sir2/SIRT3 regulation under mild stress suggests antioxidant-linked mechanisms worth identifying.
• What they did: Sir2 and SIRT3 structures were docked with antioxidant natural ligands, yielding binding free energies mostly between -5.0 and -11 kcal/mol, followed by ADME, PASS/SOM, and interaction visualization.
• The result: Naringenin and quercetin are highlighted as promising modulators of Sir2/SIRT3–mediated metabolic pathways, with stable hydrophobic interactions and hydrogen bonds plus predicted antioxidant/anti-aging activity and favorable gastrointestinal absorption.

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