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High-dose vitamin D may improve cognition among those at risk of dementia, study finds
With more than 7 million Americans living with Alzheimer's dementia—a number projected to reach nearly 13 million by 2050—new Emory University research suggests that higher vitamin D supplement intake may be associated with ...
17 hours ago
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Medical research news
AI-calculated brain age predicts dementia risk years before doctors can see it
Memory clinics still rely on visual rating scales to assess brain atrophy, yet these tools lack the sensitivity to catch subtle changes associated with early dementia. A measure of how old a person's brain appears on brain ...
New metric reveals how inequality can spark epidemics despite low overall risk
Influenza spreads in a crowded barracks or prison. Ebola proliferates when per capita hospital beds plummet below typical levels in developed countries. Bedside discrimination leads some patients to die and others to survive.
11 hours ago
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Human multi-organ chip tracks breast cancer spread to bone and lung
Cancer spreading beyond the primary tumor—a process known as metastasis—is responsible for at least two-thirds of cancer deaths. Drugs targeting metastatic progression have largely failed, in part because of the lack of predictive ...
14 hours ago
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Supercentenarians have an abundance of cancer-killing immune cells
The human immune system has specialized cells called CD4 cytotoxic T lymphocytes (CD4 CTLs), which have been shown to kill tumor cells in some cancers. When a person gets sick, these cells multiply in a process called clonal ...
19 hours ago
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From orbit to clinic: HIV drug enters Rett syndrome trial after space-based brain study
Research using human brain organoids onboard the International Space Station helped lead to a clinical trial of a potential therapy for Rett syndrome, a debilitating neurological disorder in children. Scientists are now expanding ...
15 hours ago
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Gut bacteria may transform spinach, beets and plant iron into protective compounds
Researchers at Karolinska Institutet have discovered that gut bacteria can convert dietary nitrate and iron into protective molecules that may reduce the risk of cardiovascular and metabolic diseases. The study, published ...
19 hours ago
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World's largest psilocybin brain-imaging study maps how context reshapes psychedelic effects
A landmark five-year study by Monash University has found psychedelics reorganize brain patterns, giving clinicians powerful new insights into their therapeutic potential.
19 hours ago
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Heartbeats power a battery-free pacemaker designed to last a lifetime
Madison researchers have developed an implantable, battery-free pacemaker that's charged by a patient's heartbeat. The device has the potential to last an entire lifetime, reducing the risks and costs associated with replacing ...
16 hours ago
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The science of sweating still holds surprises—including how still, dry air can hinder cooling
The purpose of perspiration was a mystery in 1775, when English physician Charles Brian Blagden and a few inquisitive friends experimented on themselves by spending time in rooms heated to more than 230°F (110°C). While the ...
16 hours ago
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Ambient light activates wearable patch for wound treatment
A research team has developed a wearable patch that simultaneously promotes wound closure and tissue regeneration using room light or sunlight, without batteries or an external electrical power source. The work has been published ...
17 hours ago
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International study marks step forward in genetic understanding of eating disorders
New research led by the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King's College London, in collaboration with an international partnership of researchers, has, for the first time, compared the genetics ...
17 hours ago
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Does your immune system learn like AI?
Could AI hold the key to answering questions that have stumped doctors and scientists for decades? A recent study at Cold Spring Harbor Laboratory (CSHL) borrows concepts from machine learning to address an age-old riddle ...
16 hours ago
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New norovirus vaccine approach may shape strategies for treating other RNA viruses as well
Every RNA virus—from stomach bugs and influenza to measles and the common cold—has its own story to tell, with a unique combination of symptoms, transmission rates, duration and chemical blueprint.
17 hours ago
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'Breakthrough' mRNA cancer drug curbs melanoma in large trial
US drugmakers Merck and Moderna said Wednesday a personalized cancer treatment had shown success in reducing the recurrence of melanoma tumors in a late-stage trial hailed by experts as a "breakthrough."
20 hours ago
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Newly found 'immune organ' inside skull directs brain defense
Researchers at Washington University School of Medicine in St. Louis have discovered lymph node-like structures in the skull bone marrow of mice for the first time and demonstrated that they act as rapid first responders ...
19 hours ago
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Why do we get sleepy? How neurons control sleep drive
Why does staying awake inevitably make us sleepy? Researchers at the University of Basel, Switzerland, have identified neuronal populations in the brains of mice that become activated during prolonged wakefulness and are ...
19 hours ago
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Cell-preservation technique could make CAR-T cell therapy more accessible
Immune cells that are engineered to attack cancer cells, known as CAR-T cells, are used to treat some types of blood cancer. However, only about 5% of hospitals in the United States can generate and deliver CAR-T cells to ...
18 hours ago
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Study finds sustained benefit for people using Oregon psilocybin services
People participating in an Oregon Health & Science University-led study of state-regulated psilocybin services reported relief from symptoms of anxiety, depression and post-traumatic stress disorder—with almost two-thirds ...
19 hours ago
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