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Medical Xpress / One-third of dementia cases are linked to non brain-related diseases, study finds
Dementia is a term used to describe memory loss, impaired reasoning, difficulties communicating and other mental impairments that can be caused by Alzheimer's disease, other neurodegenerative disease, strokes, severe infections, ...
Medical Xpress / Addiction and appetite along the gut-brain axis: Vagus nerve may play a crucial role in the dopamine reward pathway
Dopamine—a neurotransmitter responsible for influencing motivation, pleasure, mood and learning in the brain—has experienced a bit of fame in recent years, acting as a sort of buzzword to describe a fleeting satisfaction ...
Phys.org / Increasing pesticide toxicity threatens global biodiversity protection goal: Only one country is currently on target
At the 15th UN Biodiversity Conference (COP15) in Montreal, Canada, in 2022, nations committed to reducing the risks associated with pesticide use in agriculture by 50% by 2030. A new study by a research team from RPTUKaiserslautern-Landau, ...
Phys.org / CRISPR screen maps 250 genes essential for human muscle fiber formation
Muscles make up nearly 40% of the human body and power every move we make, from a child's first steps to recovery after injury. For some, however, muscle development goes awry, leading to weakness, delayed motor milestones ...
Tech Xplore / AI agents debate more effectively when given personalities and the ability to interrupt
In a typical online meeting, humans don't always wait politely for their turn to speak. They interrupt to express strong agreement, stay silent when they are unsure, and let their personalities shape the flow of the discussion. ...
Phys.org / Rare 'universal paralog' genes may reveal a pre-LUCA evolutionary record
All life on Earth shares a common ancestor that lived roughly four billion years ago. This so-called "last universal common ancestor" (LUCA) represents the most ancient organism that researchers can study. Previous research ...
Phys.org / Skua deaths mark first wildlife die-off due to avian flu on Antarctica
More than 50 skuas in Antarctica died from the high pathogenicity avian influenza virus H5N1 in the summers of 2023 and 2024, marking the first documented die-off of wildlife from the virus on the continent. That is confirmed ...
Phys.org / Two-day-old babies show brain signs of rhythm prediction, study finds
Babies are born with the ability to predict rhythm, according to a study published February 5 in the open-access journal PLOS Biology by Roberta Bianco from the Italian Institute of Technology, and colleagues.
Medical Xpress / Mutation in one Parkinson's protein eases cellular traffic jams caused by another
A hallmark of Parkinson's disease is the buildup of Lewy bodies—misfolded clumps of the protein known as alpha-synuclein. Long before Lewy bodies form, alpha-synuclein can interfere with neurons' ability to transport proteins ...
Phys.org / Snowball Earth: Ancient Scottish rocks reveal annual climate cycles
Scientists at the University of Southampton have uncovered evidence from ancient rocks that Earth's climate continued to fluctuate during its most extreme ice age—known as Snowball Earth. During the Cryogenian Period, between ...
Phys.org / DNA provides a solution to our enormous data storage problem
Since the dawn of the computer age, researchers have wrestled with two persistent challenges: how to store ever-increasing reams of data and how to protect that information from unintended access. Now, researchers with Arizona ...
Medical Xpress / How 'invisible' vaccine scaffolding boosts HIV immune response
One of the biggest hurdles in developing an HIV vaccine is coaxing the body to produce the right kind of immune cells and antibodies. In most vaccines, HIV proteins are attached to a larger protein scaffolding that mimics ...
