Explore our database of over 4000 laboratory markers.

Search and Understand 4000+ Biomarkers

GAMMA AMINO BUTYRIC ACID

Urine

Amino Acid Analysis, LC/MS, Quest Diagnostics

Optimal range:   0 - 2 mmol/mol creatinine

Gamma-aminobutyric acid (GABA) is an amino acid that functions as an inhibitory neurotransmitter. It serves one-third of brain neurons and is involved in depression and mania. Although there are some dietary supplement and food sources for GABA (cruciferous vegetables, spinach, tomatoes, beans, and rice), the primary source may be endogenous prodution.

Nervous tissue, the gut microbiome, the liver, pancreas, and endothelial cells are important sources for production. Endogenous GABA is produced by the decarboxylation of the excitatory neurotransmitter glutamic acid.

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Gamma Aminobutyric Acid

Amino Acid Analysis, Quest Diagnostics

Optimal range:   0 - 3 umol/L

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Gamma Gliadin IgG

VibrantAmerica (various), Vibrant America

Optimal range:   0 - 0.9 Units

Gliadin constitutes a class of proteins that are present in wheat and other cereal which give it the ability to rise properly when baked. The main types of gliadin are alpha, beta, gamma and omega gliadins. Research has suggested that antibody reactivity against all the above mentioned forms of gliadin are found in individuals with ‘Wheat related disorders.’

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Gamma Globulin, Serum

Liver Health

Optimal range:   0.4 - 1.8 g/dL , 4.00 - 18.00 g/L

Gamma globulin is a major class of immunoglobulins found in the blood, including many of the most common antibodies circulating in the blood.

The gamma globulin band consists of 5 immunoglobulins:

- 80% is immunoglobulin G (IgG)

- 15% is immunoglobulin A (IgA)

- 5% is immunoglobulin M (IgM)

- 0.2% is immunoglobulin D (IgD)

- A trace is immunoglobulin E (IgE)

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Gamma Globulin, Urine

Urinalysis

Optimal range:   0 - 0 %

The gamma-globulin fraction contains the immunoglobulins, a family of proteins that function as antibodies.

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Gamma interferon (IFN-gamma)

Cytokine assay panel for immune profile, SYNLAB

Optimal range:   0 - 8.41 pg/mL

IFN-γ is a helper T-cell 1 (Th1)-derived cytokine and plays a critical role for both innate and adaptive immunity against viral and intracellular bacterial infections and tumor control.

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Gamma Linolenic (Genova)

Genova Diagnostics (various), Genova Diagnostics

Optimal range:   5 - 46 µmol/L

Gamma-linolenic acid (GLA) is an omega-6 fatty acid. The body converts linoleic acid to gamma-linolenic acid and then to arachidonic acid (AA). 

You can get gamma-linolenic acid from several plant-based oils, including evening primrose oil (EPO), borage oil, and black currant seed oil. Most of these oils also contain some linoleic acid.

Gamma-linolenic acid contains 18 carbons and 3 double bonds. It is synthesized from linoleic acid by adding a double bond using the delta-6-desaturase enzyme. This enzymatic reaction is very slow and further impaired in vitamin and mineral deficiencies such as zinc and cobalt. Stress, smoking, alcohol, and systemic inflammatory conditions can also slow this conversion.

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gamma Linolenic Acid

Blood

NutriStat Basic Profile, US BioTek

Optimal range:   0.05 - 0.72 %

Gamma-linolenic acid (GLA) is an omega-6 fatty acid. The body converts linoleic acid to gamma-linolenic acid and then to arachidonic acid (AA). 

You can get gamma-linolenic acid from several plant-based oils, including evening primrose oil (EPO), borage oil, and black currant seed oil. Most of these oils also contain some linoleic acid.

Gamma-linolenic acid contains 18 carbons and 3 double bonds. It is synthesized from linoleic acid by adding a double bond using the delta-6-desaturase enzyme. This enzymatic reaction is very slow and further impaired in vitamin and mineral deficiencies such as zinc and cobalt. Stress, smoking, alcohol, and systemic inflammatory conditions can also slow this conversion.

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Gamma-aminobutyrate

Urine

Amino Acids; Urine 24-hour (Doctor's Data), Doctor's Data

Optimal range:   0 - 7 qmol/24 hours

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Gamma-aminobutyrate

Amino Acids test [Great Plains Laboratory / Doctor's Data], Doctor's Data

Optimal range:   0 - 7 qM/g creatinine

Gamma-aminobutyrate (GABA) is the major inhibitory neurotransmitter found in the CNS and, as such, is important for balancing excitatory action of other neurotransmitters.

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Gamma-aminobutyrate

Amino Acid Profile, Qn (Plasma), LabCorp

Optimal range:   0 - 0.6 umol/L

Gamma-aminobutyrate (GABA) is the major inhibitory neurotransmitter found in the CNS and, as such, is important for balancing excitatory action of other neurotransmitters.

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Gamma-aminobutyrate

Amino Acid Profile, Qn (Urine), LabCorp

Optimal range:   0.5 - 13.1 umol/g Cr

Gamma-aminobutyrate (GABA) is the major inhibitory neurotransmitter found in the CNS and, as such, is important for balancing excitatory action of other neurotransmitters.

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Gamma-aminobutyrate (GABA)

Urine

Neuro Basic Profile (Labrix, Doctor's Data), Doctor's Data

Optimal range:   2 - 5.6 qmol/g

Gamma-aminobutyrate (GABA) is the major inhibitory neurotransmitter found in the CNS and, as such, is important for balancing excitatory action of other neurotransmitters.

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Gamma-aminobutyric acid (GABA)

Neurotransmitters

Optimal range:   2.4 - 12.7 uMol/gCr

GABA stands for Gamma-aminobutyric acid (γ-Aminobutyric Acid) and is a nonessential protein amino acid. GABA is an inhibitory neurotransmitter in the central nervous system.

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Gamma-Gliadin-15-mer IgA

Array 3X - Wheat/Gluten Proteome Reactivity & Autoimmunity Screen, Cyrex Laboratories

Optimal range:   0.1 - 1.5 ELISA Index

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Gamma-Gliadin-15-mer IgA+IgM

Array 14 - Mucosal Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.1 - 2.1 ELISA Index

Gliadin is a glycoprotein. It is an alcohol-soluble protein present in wheat and occurring in various forms (a-, g-, and w-gliadins). g-Gliadins-15-mer are considered to be the most ancient of the gluten family. This group of gliadins works with gluten proteins to determine the functional properties of wheat flour.

Known Cross-Reactions: Cerebellar

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Gamma-Gliadin-15-mer IgG

Array 3X - Wheat/Gluten Proteome Reactivity & Autoimmunity Screen, Cyrex Laboratories

Optimal range:   0 - 1.2 ELISA Index

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Gamma-Glutamyl Transferase (GGT)

Liver Health

Optimal range:   0 - 65 U/L , 0.00 - 65.00 IU/L

Gamma-Glutamyl Transferase (GGT) is an enzyme most commonly associated with the liver. GGT tests are often run to determine the cause and extent of liver damage or to monitor treatment of alcohol abuse disorders. While an elevated GGT score may be a cause for concern, a normal or low score is generally not.

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gamma-Tocopherol

3102 ION (Blood/Urine) Amino Acids 40, Genova Diagnostics

Optimal range:   0.7 - 4.9 mg/L

Gamma-tocopherol is part of the Vitamin E classification group.

The term vitamin E refers to a group of eight naturally occurring compounds, all with different potencies:

– alpha-, beta-, gamma- and delta-tocopherol and

– alpha-, beta-, gamma- and delta-tocotrienol.

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gamma-Tocopherol (Genova)

Genova Diagnostics (various), Genova Diagnostics

Optimal range:   0.06 - 2.99 mg/L

Gamma-tocopherol is part of the Vitamin E classification group.

The term vitamin E refers to a group of eight naturally occurring compounds, all with different potencies:

– alpha-, beta-, gamma- and delta-tocopherol and

– alpha-, beta-, gamma- and delta-tocotrienol.

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