Which tests measure Glutamate, 24-Hour Urine?

Glutamate, 24-Hour Urine is measured in 1 test on BiomarkersLabs.com, including NeuroBasic Profile — 24 Hour Urine.

Biomarker Reference · Glu

What does the Glutamate, 24-Hour Urine test measure?

Q: What is the reference range for Glutamate, 24-Hour Urine?

The standard reference range for Glutamate, 24-Hour Urine is # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glutamate — values are highly platform-specific. Urinary glutamate is present in substantially higher concentrations than GABA; confirm units and range before publication.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Glutamate, 24-Hour Urine (Glu) is a clinical biomarker used in neurological-mental-health assessment. Glutamate is the primary excitatory neurotransmitter of the central nervous system and is also central to nitrogen metabolism, protein synthesis, and the urea cycle peripherally. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glutamate — values are highly platform-specific. Urinary glutamate is present in substantially higher concentrations than GABA; confirm units and range before publication.
Units: µmol/24h
Measured In: 1 test
Category: Neurological

Functional medicine optimalInterpreted in balance with GABA rather than as an independent absolute value; no standardised optimal range. # REVIEWER FLAG: Confirm Doctor's Data documentation.

What is Glutamate, 24-Hour Urine?

Glutamate is the primary excitatory neurotransmitter of the central nervous system and is also central to nitrogen metabolism, protein synthesis, and the urea cycle peripherally. Urinary glutamate is derived largely from renal tubular metabolism and dietary protein catabolism rather than central glutamatergic neurotransmission. It serves as the direct biosynthetic precursor to GABA via glutamic acid decarboxylase.

Why is Glutamate, 24-Hour Urine measured?

In functional medicine, urinary glutamate is interpreted in the context of the inhibitory/excitatory balance alongside GABA. Disproportionately elevated urinary glutamate relative to GABA is associated in integrative frameworks with excitatory neurological symptoms, sensitivity reactions, and poor stress tolerance. Pyridoxal-5-phosphate (B6) deficiency impairs conversion of glutamate to GABA, producing elevated glutamate output that is considered a cofactor deficiency signal in this context.

Reference ranges

Standard reference: # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glutamate — values are highly platform-specific. Urinary glutamate is present in substantially higher concentrations than GABA; confirm units and range before publication.
Functional medicine optimal: Interpreted in balance with GABA rather than as an independent absolute value; no standardised optimal range. # REVIEWER FLAG: Confirm Doctor's Data documentation.
Units: µmol/24h

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Glutamate, 24-Hour Urine

1 test on BiomarkersLabs.com include this biomarker.

BML-NMH-001Comprehensive

NeuroBasic Profile — 24 Hour Urine

Glutamate, 24-Hour Urine reference range in this test: # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glutamate — values are highly platform-specific. Urinary glutamate is present in substantially higher concentrations than GABA; confirm units and range before publication.

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