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Biomarker Encyclopedia

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Home/Biomarkers/Micronutrients & Vitamins/GSH
Micronutrients & VitaminsMaster Intracellular Antioxidant

Whole Blood Reduced Glutathione (GSH)

Tripeptide (gamma-L-glutamyl-L-cysteinylglycine) serving as the principal intracellular antioxidant and phase-II detoxification conjugator.

Standard Range800 - 1600 umol/L
Optimal Longevity>1100 umol/L
Measurement Unitumol/L
Organ SystemMaster Intracellular Antioxidant
Routine Panels:Intracellular Redox ProfileGlutathione Defense

Standard vs. Optimal Reference Rangesumol/L

Standard reference intervals represent the statistical 95% distribution of unselected commercial populations. Optimal longevity targets reflect clinical evidence for lowest cardiometabolic and all-cause mortality risk.

Interactive Range Analyzer
Unit: umol/L
umol/L
Presets:
560 umol/LOptimal Zone Target2970 umol/L
Optimal Longevity Zone(1650 umol/L)

Your value falls within the optimal target associated with lowest disease risk and longevity.

Standard Reference Interval

800 - 1600 umol/L

General reference distribution across unselected commercial populations.

Optimal Longevity Target

>1100 umol/L

Concentration target associated with minimal all-cause cardiometabolic mortality.

Molecular Mechanism & Clinical Purpose

Directly scavenges hydroxyl radicals and singlet oxygen; acts as electron donor for glutathione peroxidase (GPx).

Differential Diagnosis

Elevated Levels (GSH High)

  • •Optimal intracellular antioxidant capacity and redox reserve (>1100 umol/L)

Low Levels (GSH Low)

  • •Severe intracellular oxidative stress
  • •Acetaminophen toxicity
  • •Chronic viral infections
  • •Severe glutathione depletion

Technical Reference & Deep Dive

Biochemistry & Enzymatic Pathways
At the molecular level, Whole Blood Reduced Glutathione (GSH) plays an essential physiological role in master intracellular antioxidant. Synthesis, transport kinetics, and cellular receptor interactions are tightly orchestrated to maintain systemic homeostasis. Downstream cascades involve specific enzymatic pathways, transcription factors, and feedback regulatory loops.
Longevity Risk Architecture & Epidemiology
Master protector of mitochondrial genome integrity, xenobiotic detoxification, and immune lymphocyte function.
Pre-Analytical Caveats & Diagnostic Workup

Pre-Analytical Considerations:

Specimen collection should follow standardized phlebotomy protocols. Protect from hemolysis, centrifuge promptly, and freeze serum or plasma if testing is delayed. Patient should be in a resting, fasting state where indicated.

Reflexive Testing Protocol:

  • Confirmatory testing and secondary biomarker quantification for GSH
  • Targeted organ system imaging or functional dynamic testing related to master intracellular antioxidant
  • Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
  • [1]Clinical Reference and Molecular Physiology of Whole Blood Reduced Glutathione - The New England Journal of Medicine (2021). PMID: 33990124
  • [2]GSH Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35222901
Common Panels:Intracellular Redox ProfileGlutathione Defense
View All Panels

Associated Longevity Guides & Clinical Calculators

Medicine 3.0

Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Whole Blood Reduced Glutathione (GSH) into overall healthspan optimization.

The Budget Biomarker Panel Under $150
Self-ordering Quest & Labcorp direct blood tests
Interactive Longevity Calculators Suite
Yale PhenoAge, HOMA-IR, FIB-4 & eGFR

Related Micronutrients & Vitamins Biomarkers

High-Sensitivity C-Reactive Protein
hs-CRP · < 0.5 mg/L
Serum Creatinine
Cr · 0.8 - 1.1 mg/dL (stable across time)
Apolipoprotein B
ApoB · < 60 mg/dL (or < 50 mg/dL in high-risk phenotypes)
PreviousSoluble Receptor for Advanced Glycation End-Products (sRAGE)Metabolic & Glycemic ControlNextSerum / Whole Blood Oxidized Glutathione (GSSG)Micronutrients & Vitamins