Author: healthadmin
Researchers from VIB, KU Leuven, UK DRI, and Muna Therapeutics, with funding including support from the ERC, have identified key biological changes that may help determine whether changes in the brain in Alzheimer’s disease ultimately lead to dementia. Using brain tissue donated from older adults with and without cognitive decline and samples from cognitively healthy centenarians, the research team uncovered distinct cellular programs and immune cell states associated with both disease progression and resistance. The findings, published in Nature Medicine, point to changes in microglia, the brain’s resident immune cells, as a potentially important focus for future Alzheimer’s treatments. “This…
People diagnosed with obsessive-compulsive disorder often have trouble recalling specific personal memories, a cognitive characteristic that appears to exacerbate the severity of their symptoms. New research shows that this memory pattern is associated with deficits in mental flexibility and working memory, suggesting it could be a new target for psychotherapy. The study was published in the journal Behavior Research and Therapy. Autobiographical memory allows people to mentally go back in time and recall detailed past experiences. Specific memories usually involve events that happened on a specific day and in a specific location. People who experience memories that are too general…
An 18-year follow-up study revealed that psychiatric research Evidence shows that children diagnosed with attention-deficit/hyperactivity disorder tend to face a wider range of challenges in different areas of their lives in adulthood than other children. This study evaluated adults diagnosed with ADHD in childhood, along with siblings without ADHD and an unrelated control group. The findings show that siblings of children with ADHD generally experience typical adult functioning, suggesting that many of the long-term difficulties are specific to the condition itself rather than family co-education. Attention-deficit/hyperactivity disorder, commonly known as ADHD, is a neurodevelopmental condition characterized by a persistent pattern…
What if you could visit a place that doesn’t exist on maps? A place that’s whispered about online as if it were on the edge of the world we know. A place known simply as the “back room”. The Back Room is a fictional setting created by the Internet, imagined as an endless network of empty rooms lit by fluorescent lights. The concept centers around the idea of accidentally breaking out of normal reality and becoming trapped in this monotonous, labyrinthine environment with no clear exit. Since first emerging on the online bulletin board 4chan in 2019, the backroom phenomenon…
US military bases slow cleanup of toxic ‘permanent chemicals’Hundreds of U.S. military bases have delayed cleaning up PFAS for years, according to a new USA TODAY analysis of military records.It’s been nearly five years since Brandi and Brad Hiatt discovered that their well next to an Army base in Washington was contaminated with “forever chemicals.”They started using bottled water for everything from making coffee to rinsing toothbrushes. The couple even carted their two young children across town to bathe at the gym so they wouldn’t accidentally swallow contaminated bath water.The Army installed filters last year, but the wells remain contaminated.…
The Nuclear Regulatory Commission is proposing to do away with a 50-year-old basic safety principle that has minimized the amount of radiation that people in the United States are exposed to and has been adopted around the world. Currently, facilities such as nuclear power plants, hospitals and academic institutions that use radioactive materials must ensure that radiation exposure is kept “as low as reasonably achievable”, or the ALARA principle. The NRC’s proposal would abandon that philosophy while maintaining a different standard for maximum radiation exposure.The two standards have worked together in radiation safety. Dose limits set the maximum amount of…
The red-tailed snake has become one of the world’s best-known examples of invasive species. The snake, which is native to Australia and the South Pacific, probably reached Guam sometime after World War II, perhaps hiding on a military cargo plane. Its arrival had devastating consequences. The black-throated snake has locally wiped out many bird species in Guam’s forests, and causes hundreds of power outages each year by climbing utility poles and electrical equipment. In some areas of the U.S. territory, snake numbers can reach as many as 30,000 snakes per square mile. The unexpected invasion of snakes This invasion has…
Humans and other vertebrates may share a surprisingly bizarre ancestry. It is a small creature with one eye in the center of the top of its head. A recent study from Lund University and the University of Sussex suggests that the earliest ancestors of vertebrates are thought to have passed through a cyclops-like stage around 600 million years ago. According to the researchers, this animal’s central eye ultimately contributed to the development of the pair of eyes used by today’s vertebrates. Even more surprising, part of that ancient visual system may still survive in the modern brain as the pineal…
French beekeepers and environmentalists are furious after parliament approved a bill to reauthorize two banned pesticides that scientists say can poison bees.”There are no words to express the frustration,” said Carolyn Bouguet, a beekeeper from Essonne, in the Paris metropolitan area. “Honey bee populations are already suffering severely from climate change, new parasites and habitat loss, and now this is happening.”Henri Clément, a beekeeper from the southern Lozère department and a spokesman for the French beekeeping association UNAF, said the move was “an absolute disaster for our beekeeping sector and for biodiversity as a whole.”The risk to bees is “very…
Metformin has been the standard treatment for type 2 diabetes for more than 60 years, but scientists did not fully understand how metformin lowers blood sugar levels. Now, researchers at Baylor College of Medicine and collaborators around the world have identified an unexpected factor behind that effect: the brain. Their findings reveal a previously unknown brain pathway involved in metformin’s antidiabetic effects, opening the door to more precise and effective treatments. This study scientific progress. “It is widely accepted that metformin lowers blood sugar levels primarily by reducing glucose excretion in the liver. Other studies have shown that metformin acts…