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Could something as simple as vitamin C help support a healthier aging brain? In a study of more than 2,000 older adults in Japan, researchers found that people with lower vitamin C levels in their blood also tended to have less gray matter and weaker connections in a key brain network involved in memory, attention, and other cognitive functions.

New NAS president discusses the future of the beleaguered institution and the precarious state of U.S. science under Trump

Scientists have solved a long-standing mystery by discovering the missing genetic ingredient that helps melanoma cells become effectively immortal. The breakthrough could open the door to new treatments aimed at disrupting one of cancer's most important survival strategies.

Agency says closing the Beltsville Agricultural Research Center will improve efficiency, but skeptics argue it will undercut research critical to farmers

Darkling beetle larvae could provide museum curators a new way to preserve animal skeletons for display

Researchers have uncovered an unexpected antiviral defense system in sea anemones that works very differently from the one humans use. The discovery suggests evolution developed multiple ways to combat viruses, challenging long-held ideas about how animal immune systems evolved.

A Colorado research team has created experimental osteoarthritis treatments that appear to regenerate damaged joints rather than just relieve pain. In animal studies, a single injection restored arthritic joints to a healthy state within weeks, while a second therapy repaired cartilage and bone defects by harnessing the body’s own healing cells.

World’s biggest digital camera will repeatedly scan the sky, spotting cosmic explosions while building up a deep map of billions of galaxies

Recent studies suggest that copy number variants (CNVs) may contribute to the missing heritability of complex diseases such as Alzheimer's disease (AD) and related dementias (ADRD). We performed a CNV analysis using genotyping data (Axiom 815 K Spanish biobank array) from the GR@ACE/DEGESCO dementia dataset (n = 20,067) of the Spanish population. Applying PennCNV and extensive quality control, 8275 controls and 7818 dementia cases were selected for gene-level case/control associations. We...

The gut microbiome is emerging as a modifier of risk for neurodegenerative diseases, but underlying mechanisms remain poorly understood. Here, we show that the hTau.P301S mouse model for progressive tauopathy develops alterations in the composition and function of the gut microbiome that are not recapitulated in amyloid-based 5xFAD or 3xTg models for Alzheimer's disease. Disrupting the gut microbiome via chronic antibiotic treatment exacerbates cognitive deficits and tau pathology in hTau.P301S...