MeSH tree: A11.284.430.214
New York State Psychiatric Institute and Columbia University Medical Center investigators, with co-authors across additional US centers, report greater cognitive worsening at 78 weeks with valacyclovir than with placebo among ...
A stressful year leads to anxiety. Lasting isolation gives way to depression. An old trauma nags until it becomes paralyzing. Psychological and social experiences shape the brain, potentially leading to mental health issues. ...
Dec 19, 2025
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When killer T cells of our immune system divide, they normally undergo asymmetric cell division (ACD): Each daughter cell inherits different cellular components, which drive the cells toward divergent fates—one cell becomes ...
Dec 19, 2025
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It takes just a few milliseconds: A vesicle, only a few nanometers in size and filled with neurotransmitters, approaches a cell membrane, fuses with it, and releases its chemical messengers into the synaptic cleft—making ...
Dec 17, 2025
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A new study shows that the embryo and the uterine lining conduct an active "conversation" from the very earliest stages of implantation. They engage in a back and forth of tiny packages called extracellular vesicles and lipid ...
Dec 17, 2025
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Researchers at Leipzig University's Carl Ludwig Institute for Physiology, working in collaboration with Johns Hopkins University, have achieved an important breakthrough in brain research. The so-called zap-and-freeze technique, ...
Dec 17, 2025
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Researchers at the Indiana University Melvin and Bren Simon Comprehensive Cancer Center have uncovered biological differences in how multiple myeloma develops and progresses in men and in women. The rare blood cancer occurs ...
Dec 16, 2025
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Why do some children develop a brain that is too small (microcephaly)? An international research team involving the German Primate Center—Leibniz Institute for Primate Research (DPZ), Hannover Medical School (MHH), and the ...
Dec 10, 2025
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Down syndrome is caused by an extra copy of chromosome 21. Because of genes present on this chromosome that are known to contribute to Alzheimer's disease, patients with Down syndrome often develop the disease, sometimes ...
Dec 5, 2025
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Cedars-Sinai scientists have developed an experimental drug that repairs DNA and serves as a prototype for a new class of medications that fix tissue damage caused by heart attack, inflammatory disease or other conditions.
Dec 3, 2025
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