The metabolism of tryptophan within the human body can follow one of two pathways, toward serotonin or toward production of kynurenine, a substance that plays a role in niacin production.

The study, “Parallel Pathways for Serotonin Biosynthesis and Metabolism in C ... Serotonin is synthesized through tryptophan — an amino acid that produces and maintains proteins, enzymes ...

The second metabolic pathway involves decarboxylation of tryptophan to form tryptamine ... Since bananas contain serotonin and their ingestion elevates urinary 5-hydroxyindoleacetic acid, it ...

Serotonin is synthesized from the amino acid L-tryptophan via a short metabolic pathway that involves two major enzymes. These enzymes are: Tryptophan hydroxylase (TPH) Amino acid decarboxylase ...

These processes alter the metabolism of proliferative cells ... Melatonin hormone is produced from the tryptophan–serotonin pathway, which regulates biological rhythms, such as diurnal rhythms ...

the kynurenine and serotonin pathways in body cells, and via the indole pathway in gut bacteria. Disrupted tryptophan metabolism has been linked to metabolic diseases, including obesity and CVD.

A new study published in Cell Metabolism has found that intermittent fasting enhances sexual behavior in aging male mice—not ...

Specifically, two players in tryptophan's kynurenine metabolic pathway -- kynurenic acid ... including generation of serotonin. Researchers in the early 1960s had found that RA patients displayed ...