Erythrocyte Catalase Activity (Catalase)
Heme-containing homotetrameric enzyme that decomposes millions of hydrogen peroxide molecules per second into water and molecular oxygen.
Standard vs. Optimal Reference RangeskU/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.
100 - 250 kU/g Hgb
General reference distribution across unselected commercial populations.
130 - 220 kU/g Hgb
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Catalyzes 2 H2O2 -> 2 H2O + O2 without requiring secondary electron donors, operating primarily within peroxisomes.
Differential Diagnosis
Elevated Levels (Catalase High)
- •Optimal hydrogen peroxide clearance capacity
Low Levels (Catalase Low)
- •Acatalasemia (Takahara disease)
- •Iron deficiency anemia (decreased heme cofactor)
- •Accelerated hair graying and vitiligo
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 Catalase
- Targeted organ system imaging or functional dynamic testing related to high-capacity hydrogen peroxide clearance
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Erythrocyte Catalase Activity - The New England Journal of Medicine (2021). PMID: 33990124
- [2]Catalase 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 Erythrocyte Catalase Activity (Catalase) into overall healthspan optimization.