Urinary Dialkylphosphates (Total DAP)
Six common dialkylphosphate urinary metabolites (DMP, DMTP, DMDTP, DEP, DETP, DEDTP) produced from organophosphate pesticide degradation.
Standard vs. Optimal Reference Rangesnmol/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.
<20 nmol/g Cr
General reference distribution across unselected commercial populations.
<5 nmol/g Cr
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Organophosphates phosphorylate and inactivate acetylcholinesterase (AChE), causing synaptic acetylcholine accumulation and neurotoxicity.
Differential Diagnosis
Elevated Levels (Total DAP High)
- •Consumption of conventionally grown fruits and vegetables with high pesticide residue (Dirty Dozen)
- •Agricultural exposure
Low Levels (Total DAP Low)
- •Strict organic produce consumption
- •High carboxylesterase detoxification capacity
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 Total DAP
- Targeted organ system imaging or functional dynamic testing related to organophosphate pesticide ingestion
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Urinary Dialkylphosphates - The New England Journal of Medicine (2021). PMID: 34090124
- [2]Total DAP 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 Dialkylphosphates (Total DAP) into overall healthspan optimization.