Medical News

RSS

New tumor organoids strengthen precision oncology research

Significant advances have been made in the development of patient-derived tumor "organoids" for preclinical research, in two new studies led by Weill Cornell Medicine investigators.

20 Jul 2026

Specialized blood vessels enable effective immune defense against cancer metastases

It has long been suspected that endothelial cells, the specialized cells lining the inner walls of blood vessels, play a key role in determining how the body’s immune system responds to tumors.

20 Jul 2026

Researchers uncover brain target to counter fentanyl-induced slow breathing

Fentanyl causes symptoms that can lead to death from overdose. One of these symptoms is slow breathing, which deprives drug users of oxygen.

20 Jul 2026

Spring clock change increases retinal vascular disease risk, study finds

For the first time, Northwestern Medicine scientists have detailed how the semiannual clock changes impact a person's risk of developing retinal vascular disease, a group of disorders that affect blood vessels in the retina and can lead to vision loss.

20 Jul 2026

Hippocampal damage linked to memory loss and apathy

People with autoimmune limbic encephalitis experience memory loss associated with damage to their hippocampus.

20 Jul 2026

Study links severe floods to higher opioid overdose deaths in rural Appalachia

Severe flooding may contribute to higher mortality rates from opioid use in rural Appalachia, according to a study by researchers at Penn State.

20 Jul 2026

Study explores membrane repair mechanisms in leishmaniasis parasites

Texas Tech University faculty Peter Keyel and Kai Zhang are teaming up to build foundational knowledge concerning leishmaniasis, a common, but neglected protozoan parasitic disease.

20 Jul 2026

High costs continue limiting insurance coverage for GLP-1 medications

Despite growing evidence that GLP-1 medications improve health and are worth their cost, many insurance plans still limit coverage. University of Mississippi researchers are examining why, and where that leaves patients.

20 Jul 2026

Global road injuries remain major public health challenge, study finds

In 2023, nearly 51 million people were injured and 1.34 million died from road injuries, making road injuries one of the leading global causes of premature death and disability, according to a new study published today in The Lancet Public Health.

20 Jul 2026

Dissolving microneedles could improve photodynamic skin cancer treatment

Photodynamic therapy (PDT) uses a light-sensitive drug and a specific wavelength of light to destroy cancer cells.

20 Jul 2026

New target makes cancer cells vulnerable to immune destruction

Researchers at the University of Illinois Chicago have identified a molecular switch that helps determine whether cancer cells remain soft and difficult to destroy or become stiff enough for the immune system to attack.

20 Jul 2026

Stroke patients with disabilities may benefit from thrombectomy treatment

Patients with moderate-to-severe disabilities before a stroke are frequently excluded from endovascular thrombectomy (EVT), despite representing a substantial proportion of patients with large vessel occlusion stroke.

20 Jul 2026

AI-guided technique improves targeted therapy delivery for brain tumors

Researchers presented a groundbreaking artificial intelligence (AI)-guided technique today at the Society of NeuroInterventional Surgery's (SNIS) 23rd Annual Meeting that may improve the accuracy of delivering experimental therapies directly to malignant brain tumors.

20 Jul 2026

Female doctors request more diagnostic tests in emergency departments

A new UCLA Health study examining more than 1.5 million emergency department (ED) visits found that female physicians request more imaging and laboratory tests and admit more patients to the hospital than their male counterparts working alongside them.

20 Jul 2026

Study reveals geographic gaps in breastfeeding initiation across America

A nationwide analysis led by a UC Riverside (Calif.) professor provides one of the clearest pictures yet of where mothers are least likely to begin breastfeeding their babies in the United States and what circumstances associate with lower rates.

20 Jul 2026

Semaglutide vs. liraglutide: Head-to-head study reveals a diabetes risk difference

Researchers compared semaglutide with liraglutide in 57,456 insured adults without recorded diabetes or cardiovascular disease who initiated formulations indicated for chronic weight management. Semaglutide users had a lower risk of incident diabetes, particularly beyond six months of follow-up, but limited cardiovascular events prevented a precise comparison of cardiovascular risk.

20 Jul 2026

Beetroot juice shows its clearest aerobic benefits in recreational exercisers

A meta-analysis of 38 placebo-controlled trials involving 703 participants found that beetroot juice supplementation was associated with a small improvement in VO2max or VO2peak during aerobic exercise. Benefits were most consistent in recreationally active adults, while evidence in highly trained athletes remained limited and uncertain.

20 Jul 2026

Semaglutide fuels rapid growth in US GLP-1RA use as payments rise

Nationally representative US data show GLP-1RA use rose 230% among adults with diabetes and 643% among those without reported diabetes between 2017 and 2022, largely driven by semaglutide. Mean annual out-of-pocket payments decreased, but mean total annual payments per user increased, raising concerns about long-term affordability.

20 Jul 2026

Gut microbial metabolites may shape vulnerability to stress-related mental disorders

Gut microbiome-derived metabolites may influence stress-related mental disorders through neural, immune, endocrine, and epigenetic pathways. Evidence is strongest for depression and preclinical models, while larger longitudinal human studies are needed to establish causality and clinical value.

20 Jul 2026