PurpleDaisy Logo
PurpleDaisyResources
BiomarkersReference MatrixLab PanelsCalculatorsCompareGuidesBlog
Download on the App Store
BiomarkersReference MatrixLab PanelsCalculatorsCompareGuidesBlog

Biomarker Encyclopedia

500+ Items
Master Catalogs
  • All 500+ Biomarkers Directory
  • Longevity Reference MatrixPDF
Categories (500+ Markers)
  • Cardiovascular & Lipidology
  • Metabolic & Glycemic Control
  • Renal Physiology & Electrolytes
  • Hepatic & Biliary Function
  • Hematology & CBC
  • Iron Metabolism & Oxygen Transport
  • Endocrinology & Hormones
  • Micronutrients & Vitamins
  • Immunology & Longevity Clocks
Download Meridian on the App Store
Home/Biomarkers/Endocrinology & Hormones/Taurine
Endocrinology & HormonesOsmoregulation & Bile Conjugation

Plasma Taurine (Taurine)

Sulfur-containing beta-amino acid synthesized from cysteine, acting as an essential organic osmolyte and antioxidant.

Standard Range35 - 120 umol/L
Optimal Longevity50 - 100 umol/L
Measurement Unitumol/L
Organ SystemOsmoregulation & Bile Conjugation
Routine Panels:Amino Acid ProfileCardiometabolic Health

Standard vs. Optimal Reference Rangesumol/L

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.

Interactive Range Analyzer
Unit: umol/L
umol/L
Presets:
24 umol/LOptimal Zone Target162 umol/L
Optimal Longevity Zone(75 umol/L)

Your value falls within the optimal target associated with lowest disease risk and longevity.

Standard Reference Interval

35 - 120 umol/L

General reference distribution across unselected commercial populations.

Optimal Longevity Target

50 - 100 umol/L

Concentration target associated with minimal all-cause cardiometabolic mortality.

Molecular Mechanism & Clinical Purpose

Conjugates bile acids (taurochenodeoxycholic acid), modulates mitochondrial tRNA translation, and regulates intracellular calcium flux.

Differential Diagnosis

Elevated Levels (Taurine High)

  • •High dietary intake (seafood, meat)
  • •Taurine supplementation (1 to 3g daily)

Low Levels (Taurine Low)

  • •Dietary taurine deficiency (strict long-term veganism without synthesis support)
  • •Impaired bile conjugation
  • •Cardiomyopathy risk

Technical Reference & Deep Dive

Biochemistry & Enzymatic Pathways
At the molecular level, Plasma Taurine (Taurine) plays an essential physiological role in osmoregulation & bile conjugation. Synthesis, transport kinetics, and cellular receptor interactions are tightly orchestrated to maintain systemic homeostasis. Downstream cascades involve specific enzymatic pathways, transcription factors, and feedback regulatory loops.
Longevity Risk Architecture & Epidemiology
Abundant in myocardium and retina; supplementation enhances cardiac stroke volume, exercise capacity, and lifespan in animal models.
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 Taurine
  • Targeted organ system imaging or functional dynamic testing related to osmoregulation & bile conjugation
  • Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
  • [1]Clinical Reference and Molecular Physiology of Plasma Taurine - The New England Journal of Medicine (2021). PMID: 33990124
  • [2]Taurine Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35222901
Common Panels:Amino Acid ProfileCardiometabolic Health
View All Panels

Associated Longevity Guides & Clinical Calculators

Medicine 3.0

Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Plasma Taurine (Taurine) into overall healthspan optimization.

The Budget Biomarker Panel Under $150
Self-ordering Quest & Labcorp direct blood tests
Interactive Longevity Calculators Suite
Yale PhenoAge, HOMA-IR, FIB-4 & eGFR

Related Endocrinology & Hormones Biomarkers

High-Sensitivity C-Reactive Protein
hs-CRP · < 0.5 mg/L
Serum Creatinine
Cr · 0.8 - 1.1 mg/dL (stable across time)
Apolipoprotein B
ApoB · < 60 mg/dL (or < 50 mg/dL in high-risk phenotypes)
PreviousGlutamate-to-GABA Ratio (Glu/GABA)Endocrinology & HormonesNext1,25-Dihydroxyvitamin D (Calcitriol) (1,25(OH)2D)Endocrinology & Hormones