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What medicine-exposed rats reveal about the next urban zoonotic threat

Researchers found that more than half of urban rats sampled from low-income communities in Salvador, Brazil, carried active pharmaceutical ingredients in their brain tissue. These pollutants were associated with altered zoonotic infection patterns, including lower Leptospira infection probability in rats carrying azithromycin and higher Capillaria infection probability in rats carrying citalopram.

22 May 2026

Explainable AI could make breast cancer drug predictions safer and clearer

AI-driven genomic analysis could help researchers identify existing drugs that may be repurposed for subtype-specific breast cancer treatment. The review proposes an interpretability-driven framework that links multi-omics data, mechanistic validation, and clinical translation to make AI predictions more transparent and clinically useful.

22 May 2026

Disrupted sleep rhythms may increase dementia risk through impaired waste clearance

Why are conditions such as chronic stress, depression, cardiovascular disease, fragmented sleep, and aging all associated with a higher risk of dementia? In a new review piece in Science, University of Rochester Medicine neuroscientist Maiken Nedergaard, MD, DMSc, proposes that many of these seemingly different conditions may converge on the same biological problem: disruption of a sleep-dependent brain rhythm that helps clear waste from the brain.

22 May 2026

ISTA researchers prove keratin is indispensable for coherent cell migration

Hair, nails, and horns, all made up of keratin, are some of the hardest and most resilient structures in animals. Inside zebrafish cells, keratin plays a distinct role, giving them the strength they need to move together as a coherent tissue while modulating the driving forces behind their movement during early development. But what happens when keratin is missing?

22 May 2026

Excess EXO1 protein may drive cancer DNA damage and treatment response

When it comes to cancer, tumor suppressor genes are usually thought of as the "good guys." These genes make proteins that protect and repair DNA in cells.

21 May 2026

AI-created miniproteins show promise for targeting hard-to-treat diseases

G protein-coupled receptors, or GPCRs, sit in the plasma membrane, the boundary that defines the inside and outside of a living cell. They communicate with nearly every physiological process in our bodies - from the ability to see and smell, to sensing of adrenaline, insulin, nutrients and medicines.

21 May 2026

New eye drop formulation shows promise for dry eye disease

Researchers at Baylor College of Medicine and Okayama University in Japan have developed and tested in mice a promising new eye drop formulation for treating dry eye disease.

21 May 2026

New artificial intelligence model maps how genes work together inside cells

Scientists at the Icahn School of Medicine at Mount Sinai have created a new artificial intelligence (AI) model that helps reveal how genes function together inside human cells, offering a powerful new way to understand biology and disease.

21 May 2026

Targeting tumor-specific inflammatory process may prevent drug resistance in colon cancer

Chemotherapy drugs that target a common mutation in colorectal cancer rapidly lose efficacy in patients, leading to relapse.

21 May 2026

Researchers discover how overpopulation reduces fertility

Scientists have reported it for decades: Overpopulation can impair reproduction.

21 May 2026

Common vegetable oil compound shows power to fight dangerous viruses

A common vegetable oil may hold the key to fighting some of the world's most dangerous viruses.

21 May 2026

New study shows how exercise hormone reduces multiple sclerosis symptoms

A new study offers clues as to why exercise can improve neurological symptoms in people with multiple sclerosis (MS).

21 May 2026

Scientists discover how vitamin K pathway regulates bone remodeling

Bone is continuously renewed through a process known as bone remodeling, in which osteoblasts (bone-forming cells) build new bone, while osteoclasts (bone-resorbing cells) remove older mineralized tissue.

21 May 2026

Uneven grey matter loss serves as a powerful new biomarker for early neurodegeneration

Universitat Oberta de Catalunya Alzheimer's disease begins to weave a web in the brain and remodel neuronal tissue 15 to 20 years before the first symptoms appear. From the time this happens, however, until the disease is diagnosed and, later, enters an advanced phase, it progresses along a continuum of changes to the brain.

21 May 2026

Muscle-specific molecular signal regulates how human heart cells produce and utilize critical energy

Researchers have identified a key protein that may help failing hearts regain function, offering new insight into why some hearts recover while others do not.

21 May 2026

Key neural circuit helps the brain “change gears”

Most people have experienced the feeling: switching from one task to another, only to find the brain momentarily stuck in the old mode of thinking. Sometimes, even after realizing a strategy no longer works, the mind keeps returning to it anyway.

21 May 2026

New gene expression signature may guide immunotherapy for resistant prostate cancer patients

Researchers with the James P. Allison Institute™ at The University of Texas MD Anderson Cancer Center have discovered a new gene expression signature within tumors that can help identify patients with metastatic castration-resistant prostate cancer (mCRPC) who are more likely to experience lasting benefits from combined immunotherapy treatment.

21 May 2026

New CA19-9 threshold improves pancreatic cancer risk prediction accuracy

A dual-threshold model for measuring the pancreatic tumor marker serum carbohydrate antigen 19-9 (CA19-9) identified patients with pancreatic cancer who had high-risk disease despite having low CA19-9 levels because of a genetic variation that impairs their ability to produce this biomarker.

21 May 2026

New vaccine approach targets broad protection against arenavirus infections

Scientists at La Jolla Institute for Immunology (LJI) have discovered that combining key vaccine ingredients could give the body the tools it needs to fight the entire family of arenaviruses with a single vaccine.

21 May 2026

Small T-cell subset drives powerful multiple myeloma immunotherapy responses

Researchers from The University of Osaka find that only a small fraction of T cells may drive the robust anti-cancer response seen in breakthrough multiple myeloma immunotherapy.

21 May 2026