The tryptophan switch? Why exercise boosts your mood
One in five Canadians is living with mental health challenges such as anxiety and depression at any one time.
20 hours ago
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Amino Acids, Peptides, and Proteins: News and Research on Amino Acids, Aromatic
MeSH tree: D12.125.072.050
Study suggests one common amino acid may affect how long men live
A large new study suggests that higher levels of a common amino acid called tyrosine may be linked to a shorter lifespan in men.
Feb 27, 2026
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Liver metabolism of an essential amino acid may play a key role in gut health
Many biological processes exhibit daytime differences governed by rhythmic exposure to sunlight, termed circadian rhythms. Researchers at Penn State recently found, in mice, that a protein critical to intestinal barrier function—helping ...
Feb 2, 2026
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Fruit fly pigmentation guides discovery of genes that control brain dopamine and sleep
Dopamine in the brain influences movement, learning, motivation and sleep. In humans, problems with dopamine are linked to conditions like Parkinson's disease, depression and sleep disorders. While scientists know a great ...
Jan 13, 2026
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Targeting aberrant learning may improve Parkinson's treatment
Northwestern Medicine scientists have discovered that targeting neuronal signaling controlling aberrant learning in the striatum may improve the efficacy of a first-line therapy for Parkinson's disease and has the potential ...
Jan 5, 2026
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New evidence about dopamine delivery explains why current Parkinson's treatments succeed—and their limitations
A McGill-led study is challenging a popular theory about how dopamine drives movement, a discovery that could shift how scientists think about Parkinson's disease treatments.
Dec 17, 2025
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Next-generation microbiome medicine may transform Parkinson's treatment
The age-old advice to "trust your gut" could soon take on new meaning for people diagnosed with Parkinson's disease, thanks to a creative feat of bioengineering by researchers in the University of Georgia's College of Veterinary ...
Nov 17, 2025
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Q&A: New drug being reviewed by the FDA to treat Parkinson's disease
The U.S. Food and Drug Administration is reviewing a new Parkinson's disease drug called tavapadon that could give people with the disease more control over their movements.
Oct 29, 2025
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Dopamine found to increase willingness to wait for rewards in humans
A research team from the University of Cologne conducted one of the most comprehensive studies on dopamine and decision-making in humans so far, providing evidence for effects of the former on the latter. Dopamine is a neurotransmitter ...
Oct 28, 2025
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Missing nutrient in breast milk may explain health challenges in children of women with HIV
A new UCLA study reveals that breast milk from women living with HIV contains significantly lower levels of tryptophan, an essential amino acid likely important for infant immune function, growth, and brain development. This ...
Oct 28, 2025
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