Explore our database of over 4000 laboratory markers.

Search and Understand 4000+ Biomarkers

Trypsin

Pancreas Health

Optimal range:   169 - 773 ng/mL

Trypsin is an enzyme made in the pancreas that helps digest protein foods. In pancreatitis, trypsin levels increase in the blood. The trypsin test is the most accurate test for acute pancreatitis.

LEARN MORE

Tryptamine

Urine

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

Optimal range:   0.2 - 0.9 umol/g

LEARN MORE

Tryptase

Immune System

Optimal range:   2.2 - 13.2 ug/L

Tryptase is an enzyme that is released, along with histamine and other chemicals, from mast cells when they are activated as part of a normal immune response as well as in allergic (hypersensitivity) responses.

LEARN MORE

TRYPTASE

Quest Diagnostics, Quest Diagnostics

Optimal range:   0 - 10.99 mcg/L

Tryptase is an enzyme that is released, along with histamine and other chemicals, from mast cells when they are activated as part of a normal immune response as well as in allergic (hypersensitivity) responses.

LEARN MORE

Tryptophan

Urine

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

Optimal range:   25 - 140 qmol/24 hours

LEARN MORE

Tryptophan

Amino Acid Profile, Qn (Urine), LabCorp

Optimal range:   1 - 207.5 umol/g Cr

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP). 5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways.

Serotonin is further metabolized to melatonin via methylation.

Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

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

Optimal range:   2.65 - 6.67 qmol/dL

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

Male Comprehensive Metabolic Performance Profile (Urine) Physicians Lab, Physicians Lab

Optimal range:   3.2 - 8.1 ug/mg CR

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

NutrEval Plasma - Urine and Blood, Genova Diagnostics

Optimal range:   2.65 - 6.67 Units

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP). 5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways.

Serotonin is further metabolized to melatonin via methylation.

Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

Metabolimix+, Genova Diagnostics

Optimal range:   8 - 58 micromol/g creatinine

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

Amino Acid Analysis, Quest Diagnostics

Optimal range:   40 - 91 umol/L

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

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

Optimal range:   20 - 93 qM/g creatinine

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

Amino Acid Profile, Qn (Plasma), LabCorp

Optimal range:   23.5 - 93 umol/L

Tryptophan is an essential amino acid required for the production of the neurotransmitter serotonin.

LEARN MORE

Tryptophan

OMX Organic Metabolomics / Diagnostic Solutions, Diagnostic Solutions Laboratory | GI-MAP & Food Sensitivity Tests

Optimal range:   10.1 - 74.3 nmol/mg Creatinine

Three pathways:

- Kynurenine Pathway (primary pathway) – leading to niacin production

- Serotonin/Melatonin

- Indoles

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

TRYPTOPHAN

Urine

Amino Acid Analysis, LC/MS, Quest Diagnostics

Optimal range:   2 - 16 mmol/mol creatinine

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan

ZRT Laboratory (Urinary Neurotransmitters), ZRT Laboratory

Optimal range:   3970 - 8450 µg/g creatinine

Tryptophan is an amino acid that generates serotonin, melatonin, and kynurenine derivatives.

LEARN MORE

Tryptophan (Plasma)

Amino Acids 40 Profile, Genova Diagnostics

Optimal range:   31 - 83 µmol/L , 3.1 - 8.3 µmol/dL

Tryptophan is an essential amino acid required for the production of the neurotransmitter serotonin.

LEARN MORE

Tryptophan (Plasma)

OMX Organic Metabolomics / Diagnostic Solutions, Diagnostic Solutions Laboratory | GI-MAP & Food Sensitivity Tests

Optimal range:   36.9 - 87.1 nmol/ML

Three pathways:

- Kynurenine Pathway (primary pathway) – leading to niacin production

- Serotonin/Melatonin

- Indoles

Tryptophan is involved in serotonin production via vitamin B6-dependent pathways resulting in the intermediate 5-hydroxytryptophan (5-HTP).

5-HTP is often used as a supplement for serotonin formation instead of tryptophan, which can be quickly metabolized in other pathways. Serotonin is further metabolized to melatonin via methylation. Because of these downstream conversions, therapeutic administration of 5-HTP has been shown to be effective for depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.

LEARN MORE

Tryptophan (Urine)

Amino Acids Analysis, Genova Diagnostics

Optimal range:   5 - 53 micromol/g creatinine

Tryptophan is an essential amino acid required for the production of the neurotransmitter serotonin.

LEARN MORE

Tryptophan/LNAA

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

Optimal range:   0.04 - 0.09 Ratio

Tryptophan is an essential amino acid, a subunit in protein molecules and a precursor to serotonin. The brain uses tryptophan to produce serotonin, a neurotransmitter largely responsible for feelings of happiness and well-being.

Tryptophan cannot be synthesised by the body and must be obtained through diet.

LEARN MORE
Showing results 6701 - 6720 of 7134