Urinary Glutaric Acid (Glutarate)
Five-carbon dicarboxylic acid intermediate formed during the catabolism of lysine, hydroxylysine, and tryptophan via glutaryl-CoA.
Standard vs. Optimal Reference Rangesug/mg Cr
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.
<2.5 ug/mg Cr
General reference distribution across unselected commercial populations.
<1.0 ug/mg Cr
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Converted to crotonyl-CoA by mitochondrial glutaryl-CoA dehydrogenase (GCDH); block causes severe neurotoxic glutarate accumulation.
Differential Diagnosis
Elevated Levels (Glutarate High)
- •Glutaric Aciduria Type I (GCDH gene defect)
- •Multiple Acyl-CoA Dehydrogenase Deficiency (MADD / Glutaric Aciduria Type II)
- •Severe riboflavin deficiency
Low Levels (Glutarate Low)
- •Normal mitochondrial lysine/tryptophan degradation
- •Intact GCDH enzyme
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 Glutarate
- Targeted organ system imaging or functional dynamic testing related to lysine & tryptophan catabolism
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Urinary Glutaric Acid - The New England Journal of Medicine (2021). PMID: 34190124
- [2]Glutarate Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35422901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Urinary Glutaric Acid (Glutarate) into overall healthspan optimization.