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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Amino Acids, Peptides, and Proteins: News and Research on Tyrosine
MeSH tree: D12.125.072.050.875
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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Blue, green, brown, or something in between—the science of eye color explained
You're introduced to someone and your attention catches on their eyes. They might be a rich, earthy brown, a pale blue, or the rare green that shifts with every flicker of light. Eyes have a way of holding us, of sparking ...
Sep 11, 2025
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Detecting a potential behavioral biomarker for Parkinson's disease in mice
Detecting early rising Parkinson's disease (PD) symptoms could improve treatment outcomes by enabling earlier treatment interventions. In a new eNeuro paper, Daniil Berezhnoi, from Georgetown University, and colleagues used ...
Jul 28, 2025
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Weekly injection offers steady Parkinson's medication, reducing need for daily pills
A new weekly injectable drug could transform the lives of more than eight million people living with Parkinson's disease, potentially replacing the need for multiple daily tablets.
Jul 11, 2025
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