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Ketamine's antidepressant effects involve the brain's opioid system

Ketamine is a highly effective, fast-acting antidepressant that works even for patients who have not responded to other medications.

24 Jul 2025

Promising therapeutic approach identified for multiple myeloma

Researchers at Uppsala University have identified a promising therapeutic approach for the challenging blood cancer multiple myeloma.

24 Jul 2025

Study finds continued use of risky antiseizure drugs during pregnancy

Despite evidence of the risk of malformations at birth, or birth defects, use of some antiseizure drugs during pregnancy has persisted, according to a study published on July 23, 2025, in Neurology, the medical journal of the American Academy of Neurology.

24 Jul 2025

Penn State team investigates the neural basis of nightmares and mental health

Dreams, and likely nightmares, are experienced universally across humans and animals, but neuroscientists still do not know why.

24 Jul 2025

Walking 7,000 steps per day associated with reductions in risk of several serious health problems

A comprehensive new study analyzing data from over 160,000 adults finds that walking approximately 7,000 steps per day is associated with reductions in the risk of several serious health outcomes, including all-cause mortality (47% reduction), cardiovascular disease (25% reduction), cancer (6% reduction), type 2 diabetes (14% reduction), dementia (38% reduction), depression (22% reduction), and falls (28% reduction).

24 Jul 2025

Open-source AI tool matches commercial systems in medical scan reporting

A new study from the University of Colorado Anschutz Medical Campus shows that free, open-source artificial intelligence (AI) tools can help doctors report medical scans just as well as more expensive commercial systems without putting patient privacy at risk.

24 Jul 2025

Scientists discover neuron-like communication system in the gut

In a key advance for regenerative medicine and gut health, scientists from Duke-NUS Medical School and Nanyang Technological University, Singapore (NTU Singapore) have uncovered a precise and unexpected communication system in the gut.

24 Jul 2025

$Bone fracture risk rises after women stop menopausal hormone treatment$

Bone fracture risk rises after women stop menopausal hormone treatment

A new study has found that the bone fracture protection women get from menopausal hormone therapy (MHT, also known as HRT) disappears within a year of stopping treatment.

24 Jul 2025

Ivermectin mass treatment shows great promise in reducing malaria transmission

Ivermectin administered to the whole population significantly reduces malaria transmission, offering new hope in the fight against the disease.

24 Jul 2025

Innovative immunotherapy trial opens for newly-diagnosed glioblastoma patients

A UCL-sponsored clinical trial for patients newly diagnosed with glioblastoma, an aggressive form of brain cancer, has opened at UCLH's National Hospital for Neurology and Neurosurgery and Clinical Research Facility, in memory of Baroness Margaret McDonagh.

24 Jul 2025

AGS releases new guide for safer medication alternatives in older adults

Today the American Geriatrics Society (AGS) announced the release of the Alternative Treatments to Selected Medications in the 2023 American Geriatrics Society Beers Criteria (DOI: 10.1111/jgs.19500), an updated clinical resource designed to help healthcare professionals identify safer, more appropriate treatment options for older adults.

24 Jul 2025

Watch: What are Medicaid work requirements?

President Donald Trump signed legislation that mandates some Medicaid recipients prove they're working, volunteering, or completing other qualifying activities at least 80 hours a month to maintain coverage.

24 Jul 2025

AI tool helps doctors predict hospital death risk in cirrhosis patients

Predicting who might die while in the hospital is one of the hardest challenges for doctors caring for people with serious liver disease.

24 Jul 2025

Tribal health officials work to fill vaccination gaps as measles outbreak spreads

Cassandra Palmier had been meaning to get her son the second and final dose of the measles vaccine. But car problems made it difficult to get to the doctor.

24 Jul 2025

Low-gluten diets disrupt gut health by depleting key bacteria

Long-term gluten reduction may disrupt gut microbiota balance, reducing beneficial bacteria and increasing ethanol, linked to inflammation and metabolic risks.

24 Jul 2025

CoVerage outperforms rivals in early detection of COVID mutations

The CoVerage system monitors SARS-CoV-2 evolution, predicting variants and scoring amino acid changes to inform vaccine efficacy and public health strategies.

24 Jul 2025

AI identifies novel gene variants linked to Alzheimer’s risk

This study reveals how machine learning models uncover new genetic variants linked to Alzheimer’s, advancing predictive accuracy in genetic epidemiology.

24 Jul 2025

Gut bacteria send direct signals to the brain to stop you from overeating

Researchers have discovered a novel gut-brain sensory circuit in mice where specialized colonic cells sense bacterial flagellin and rapidly suppress feeding via the vagus nerve. This "neurobiotic sense" operates independently of immune pathways, revealing a direct neural mechanism for microbiota-host communication.

24 Jul 2025

Digging into the past: What ancient proteins say about real medieval meals

Researchers used stable isotope and proteomic analyses on medieval European skeletons to uncover the details of ancient diets. The findings revealed a heavy reliance on C3 plants, terrestrial animal proteins, legumes, and freshwater fish, demonstrating the power of combining methods for paleodietary reconstruction.

24 Jul 2025

Infants and preschoolers show unique signs of long COVID

Infants, toddlers and preschoolers exhibit symptoms of long COVID, but the symptoms can be different and more difficult to identify in these children, according to Rutgers Health research.

23 Jul 2025