Something happens when a rat starts running. Not just the obvious things, the faster heart, the warming muscles, the rhythmic percussion of paws against the wheel. Something quieter. Something that ...

Tryptophan is often dismissed as the reason for post-Thanksgiving fatigue, but its role in human health extends far beyond the holiday table. As an essential amino acid, tryptophan is crucial for ...

Voluntary exercise reshapes gut microbiota and tryptophan metabolism, with consequences for the hippocampus, the brain’s memory center We observed exercise-driven changes in tryptophan-metabolizing ...

Making chemical handles that latch onto amino acids is a strategy used to make covalent drugs, antibody-drug conjugates, and biochemical probes. Cysteine and lysine are common points of attachment, ...

Researchers at UT Southwestern Medical Center have discovered that a diet free of the amino acid tryptophan can effectively halt the growth of liver cancer in mice. Their findings, published in Nature ...