Plasma Glutamic Acid (Glutamate)
Most abundant excitatory neurotransmitter and metabolic intermediate synthesized from glutamine via glutaminase.
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.
Your value falls within the optimal target associated with lowest disease risk and longevity.
20 - 70 umol/L
General reference distribution across unselected commercial populations.
25 - 55 umol/L
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Acts on NMDA, AMPA, and kainate ionotropic receptors; excess extracellular accumulation triggers excitotoxic calcium influx and neuronal death.
Differential Diagnosis
Elevated Levels (Glutamate High)
- •Visceral obesity and metabolic syndrome
- •Excessive excitotoxic amino acid flux
- •Acute cerebral ischemia
Low Levels (Glutamate Low)
- •Severe protein malnutrition
- •Impaired nitrogen balance
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 Glutamate
- Targeted organ system imaging or functional dynamic testing related to excitatory amino acid & nitrogen pool
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Plasma Glutamic Acid - The New England Journal of Medicine (2021). PMID: 33990124
- [2]Glutamate 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 Plasma Glutamic Acid (Glutamate) into overall healthspan optimization.