Roughly 10 million years ago, a major genetic change occurred in a common ancestor of gorillas, chimpanzees, and humans. Segments of DNA in its genome began to form duplicate copies at a greater rate than in the past, creating an instability that persists in the genome of modern humans and contributes to diseases like autism [...]
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Filling a surgical wound with carbon dioxide gas could reduce infection and improve healing. A wound could continuously be flooded with carbon dioxide gas during surgery. Carbon dioxide could prevent airborne bacteria from reaching the wound and would also suffocate germs. CO2 is already used for this purpose in the food packaging business. Humidified CO2 [...]
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The identity and origin of tiny, potentially hazardous particles emitted from common laser printers have been revealed by a new study.
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Research using a mouse model of human leukemia has provided critical insight into the genetic factors related to the generation and maintenance of myeloid leukemia stem cells. The study is likely to have a profound impact on the future design of therapeutic approaches targeted against cancer stem cells.
There are two species of lice that infest humans: pubic lice, Pthirus pubis, and human head and body lice, Pediculus humanus. A new article suggests one explanation for the separation of the two species.
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What draws some people to daredevil behavior while others shy away from it? The results of a new study in Psychological Science show that high sensation seekers respond very strongly to arousing cues, but have less activity in brain areas associated with emotional regulation. These findings may indicate the way by which sensation seeking results [...]
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If you ever argued with your mother when she told you to get some sleep after studying for an exam instead of pulling an all-nighter, you owe her an apology, because it turns out she’s right. And now, scientists are beginning to understand why. Scientists describe for the first time how cellular changes in the [...]
In a study of more than 3,000 patients, researchers have found that one in seven admitted to hospital experience adverse drug reactions to medical treatment.
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Researchers have discovered that brain imaging can identify mental illness before it starts. Until now, detecting mental illness before symptoms appear has been nearly impossible.
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Researchers have found what appears to be a major culprit behind the loss of insulin-producing b cells from the pancreases of people with diabetes, a critical event in the progression of the disease.
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