Tryptophan | Laboratory research

General Information

Tryptophan is an essential amino acid that is involved in the synthesis of serotonin, melatonin, and niacin. Low plasma tryptophan concentrations are associated with symptoms such as insomnia, anxiety, depression, and more.

Disorders of tryptophan metabolism may also be genetic and lead to glutaric acidemia and encephalopathic crises, which cause brain damage.

Determination of plasma tryptophan concentration is also used to diagnose nutritional disorders.

Interpretation of results

Abnormal plasma tryptophan levels do not indicate a specific disease, so their levels should be considered in conjunction with data from other studies.

Material for examination: Venous blood

Preparation of the patient: The study is conducted on an empty stomach