Inhibitory neurons in the aging brain show reduced growth and plasticity, likely contributing to declines in brain function. In a new study in mice researchers show that treatment with fluoxetine restored substantial growth and plasticity.
Researchers constructed integrated gene logic-chips called 'gene nanochips.' These self-contained nanochips can switch genes on or off according to the environment, where photo-reprogramming of the logic operation by UV irradiation is possible. Moreover, the researchers completed proof-of-concept experiments using artificial cells that produced the diagnostics and reactants (the desired RNA and protein) in a confined nanochip, suggesting the potential of autonomous nanochips in future medical prevention and care.
America's drug problem may be even worse than officials realize. And illicit drugs are consumed at a higher rate during celebratory events. Those are just two of the conclusions scientists have drawn from recent studies of drug residues in sewage.
Nearly 700 million people suffer from mosquito-borne diseases — such as malaria, West Nile, Zika and dengue fever — each year, resulting in more than 1 million deaths. Today, researchers report a new class of mosquito repellents based on naturally occurring compounds that are effective in repelling the bugs, including those that are resistant to pyrethroid insecticides and repellents.
Inflammatory bowel disease is a set of painful conditions that can cause severe diarrhea and fatigue. Researchers are now reporting that a simple dietary intervention could mitigate colonic inflammation and improve gut health. In this case, a strawberry — or rather, less than a cupful of strawberries — a day could help keep the doctor away.
Maple trees are best known for their maple syrup and lovely fall foliage. But it turns out that the beauty of those leaves could be skin-deep — and that's a good thing. Today, scientists report that an extract from the leaves may prevent wrinkles.
Scientists report they have successfully developed and tested the world's first ultrathin artificial retina that could vastly improve on existing implantable visualization technology for the blind. The flexible 2-D material-based device could someday restore sight to the millions of people with retinal diseases.
About 50,000 people in the US are diagnosed annually with head, neck, nasal and oral cancers. Most are treated with radiation, and of those, 70-80 percent develop a painful and debilitating side effect called severe oral mucositis. A new drug could potentially prevent the condition.
The popularity of electronic cigarettes continues to grow worldwide, as many people view them as a safer alternative to smoking. But the long-term effects of e-cigarette usage, commonly called 'vaping,' are unknown. Today, researchers report that vaping may modify the genetic material, or DNA, in the oral cells of users, which could increase their cancer risk.
Saliva is crucial for tasting and digesting food. But scientists have now found that saliva could also be part of a feedback loop that influences how food tastes to people — and by extension, what foods they're willing to eat. They hope that, one day, the findings could help consumers stick to a healthier diet.