Total Superoxide Dismutase (SOD)
Family of metalloenzymes (Cu/Zn-SOD1 in cytoplasm, Mn-SOD2 in mitochondria, EC-SOD3) that dismutate superoxide into hydrogen peroxide.
Standard vs. Optimal Reference RangesU/g Hgb
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.
Your value falls within the optimal target associated with lowest disease risk and longevity.
1100 - 1600 U/g Hgb
General reference distribution across unselected commercial populations.
1250 - 1550 U/g Hgb
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Catalyzes 2 O2*- + 2 H+ -> H2O2 + O2, preventing superoxide-mediated inactivation of nitric oxide and peroxynitrite formation.
Differential Diagnosis
Elevated Levels (SOD High)
- •Robust baseline superoxide dismutation capacity
Low Levels (SOD Low)
- •Copper/Zinc or Manganese trace mineral deficiency
- •Genetic SOD mutations (familial ALS)
- •Excessive oxidative enzyme exhaustion
Technical Reference & Deep Dive
Biochemistry & Enzymatic Pathways
Longevity Risk Architecture & Epidemiology
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 SOD
- Targeted organ system imaging or functional dynamic testing related to superoxide radical dismutation
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Total Superoxide Dismutase - The New England Journal of Medicine (2021). PMID: 33990124
- [2]SOD Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35222901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Total Superoxide Dismutase (SOD) into overall healthspan optimization.