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Glutathione replenishment

Molecular classification
Metabolic pathway, Redox homeostasis
01

Overview

Glutathione (GSH) replenishment aims to restore cellular redox balance by increasing intracellular glutathione levels. GSH is a critical antioxidant involved in detoxification, redox signaling, and amino acid storage. Strategies include direct supplementation with precursors like NAC, induction or stabilization of biosynthetic enzymes, and inhibition of pathways leading to excessive depletion. Impaired glutathione levels are implicated in numerous diseases, including neurodegenerative disorders, liver disease, and cancer.

02

Mechanism of action

Replenishing glutathione levels via precursor administration, modulation of de novo synthesis, or salvage pathways.

03

Biological functions

Antioxidant defenseDetoxificationRedox signalingProtein regulationAmino acid reservoir
04

Disease associations

Neurodegenerative disordersLiver diseaseCancerImmune dysfunctionsAging-related pathologiesOxidative stress disorders
05

Safety considerations

NAC side effects (e.g., nausea, vomiting)Potential for pro-oxidant effects at high doses
06

Interacting drugs

N-acetylcysteine (NAC)
07

Biomarkers

GSH/GSSG ratioGlutathione levels

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