Urinary trans,trans-Muconic Acid (tt-MA)
Ring-opened conjugated diene dicarboxylic acid metabolite produced from hepatic CYP2E1 oxidation of volatile organic benzene.
Standard vs. Optimal Reference Rangesug/g 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.
<500 ug/g Cr
General reference distribution across unselected commercial populations.
<100 ug/g Cr
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Benzene metabolites (benzene oxide, 1,4-benzoquinone) form covalent DNA adducts and induce topoisomerase II alpha double-strand breaks.
Differential Diagnosis
Elevated Levels (tt-MA High)
- •Active cigarette smoking or secondhand smoke exposure
- •Occupational petrochemical, solvent, and adhesive exposure
- •Urban gasoline vapor inhalation
Low Levels (tt-MA Low)
- •Non-smoking, low VOC environment
- •Optimal phase-II glutathione conjugation
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 tt-MA
- Targeted organ system imaging or functional dynamic testing related to volatile benzene metabolite
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Urinary trans,trans-Muconic Acid - The New England Journal of Medicine (2021). PMID: 34090124
- [2]tt-MA Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35322901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Urinary trans,trans-Muconic Acid (tt-MA) into overall healthspan optimization.