DNA can be damaged by toxins, radiation, or even normal cell division, but human cells must continually fix DNA breaks to survive. In cells that cannot repair DNA effectively, changes (mutations) can occur that lead to cancer.
Aug 17, 2023
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Researchers have long thought that rewards like food or money encourage learning in the brain by causing the release of the "feel-good" hormone dopamine, known to reinforce storage of new information. Now, a new study in ...
Aug 9, 2023
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The closure in January 2016 of one of Pittsburgh's biggest coal-processing plants led to immediate and lasting declines in emissions of fossil fuel-related air pollutants. These in turn were linked to near-instant decreases ...
Aug 1, 2023
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Black Americans are 1.6 times more likely to believe medical information presented by a Black physician or patient compared with information presented by a white speaker, a new study shows. This finding, the authors say, ...
Jul 19, 2023
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Recurrent bouts of systemic lupus erythematosus, marked by the body's immune system attack of its own tissues, closely tracked with measureable upticks in growth in the gut of a certain species of bacteria.
Jun 27, 2023
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An experimental drug already tested as a potential treatment for cancer, lung, and Alzheimer's disease may slow the progression of atherosclerosis that leads to heart disease, a new study shows.
Jun 8, 2023
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A middle-brain region tied to the control of emotions likely prompts females to kill their young, a new study in mice shows. With the region also present in humans, the study authors say the findings could play a similar ...
Jun 7, 2023
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An artificial intelligence (AI) computer program can read physicians' notes to accurately estimate patients' risk of death, length of hospital stay, and other factors important to care. Designed by a team led by researchers ...
Jun 7, 2023
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Beneath and beyond the reddish, flaky lesions that form in the skin of those with psoriasis, mild and severe forms of the disease can be told apart by the activity of key cells and signaling pathways, a new study shows.
Jun 2, 2023
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An experimental "decoy" has provided long-term protection from infection by the pandemic virus in mice, a new study finds.
May 30, 2023
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