Medical Xpress news
Medical Xpress / Frequent cannabis users wake with higher cortisol levels, study finds
Research suggests people who often use cannabis start their day with higher cortisol levels than people who don't, indicating a relationship between frequent cannabis use and a possible dysregulation of the body's daily stress ...
Medical Xpress / Three genetic modifiers may alter inherited Alzheimer's onset and progression
Autosomal dominant Alzheimer's disease (ADAD) is a genetically inherited form of Alzheimer's disease that accounts for only about 1% of Alzheimer's disease cases. However, because individuals with the gene mutations are extremely ...
Medical Xpress / Scientists discover hidden gateways that allow the brain to clear waste
The brain continuously produces metabolic waste that must be removed to maintain healthy function. Cerebrospinal fluid (CSF) plays a central role in this process by carrying away proteins such as amyloid-β, phosphorylated ...
Medical Xpress / Can AI chatbots make mental health worse? Study identifies five risky patterns
The use of generative AI has become so widespread that ChatGPT is gradually becoming a verb, much like Google and Photoshop. Hundreds of millions of people now use large language model (LLM)-based chatbots for advice on personal, ...
Medical Xpress / Two cellular components unlock maturation in human leukemia cells, study finds
In leukemia's most aggressive forms, the blood cell factories in our bone marrow falter. Instead of dividing and multiplying at their usual prolific pace, generating hundreds of billions of new cells daily, some precursor ...
Medical Xpress / Dendrites and gatekeeper cells unlock flexible learning in mice, study finds
The ability to adapt behavior flexibly to changing environments is a hallmark of intelligence. However, the biological mechanisms in the brain that are responsible for this cognitive flexibility remain poorly understood.
Medical Xpress / Brain-penetrating nanoparticles, ultrasound and microbubbles show promise in treating glioblastoma
University of Virginia Comprehensive Cancer Center scientists have developed a promising new experimental approach to targeting glioblastoma, the most common and deadliest brain cancer. The approach could overcome many of ...
Medical Xpress / Mental health treatment for serious offenders could reduce harm to society and save money
Prisoners convicted of serious violent offenses were found to be less aggressive and less likely to reoffend following a mental health intervention that could save money and reduce harm to society, according to new research ...
Medical Xpress / Breathalyzer can 'sniff out' when your body starts burning fat
Researchers have developed a breath detector with a chemical sensor that sniffs out when your body is burning fat through a single exhale. Reporting in Device, the handheld, smartphone-assisted device measures acetone—a ...
Medical Xpress / The lone star tick is bringing another infection concern, the Bourbon virus
Tick-borne diseases are common throughout the United States, and most cases are treated effectively. A rarely diagnosed tick-borne infection, the Bourbon virus, transmitted by the common lone star tick, could soon begin to ...
Medical Xpress / How p53 mutations drive immunotherapy resistance—and a path to overcome it
Immune checkpoint blockade (ICB) therapy has transformed cancer treatment, but many tumors remain resistant. A new study from researchers at the Hackensack Meridian Center for Discovery and Innovation (CDI) identifies a previously ...
Medical Xpress / Same carcinogen, different tumors: Mouse study reveals the role of genetic background
Why do cancers develop differently in different people—even when they are exposed to the same risk factors? An international research group, including the German Cancer Research Center (DKFZ), has demonstrated in mice that ...
