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Reducing miRNA levels helps rescue vascular defects in Rett syndrome

MIT researchers have discovered that two common genetic mutations that cause Rett syndrome each set off a molecular chain of events that compromises the structural integrity of developing brain blood vessels, making them leaky.

25 Feb 2026

Vitamin B3 shows promise for treating rare genetic disorder

Scientists at Gladstone Institutes have flipped the traditional approach to finding potential treatments for deadly diseases.

25 Feb 2026

RSV and COVID-19 trigger different immune responses in infants

Young infants hospitalized with respiratory syncytial virus (RSV) often become much sicker compared to those infected with SARS-CoV-2, the virus that causes COVID-19.

25 Feb 2026

Ketogenic diet alters brain signaling to reduce epileptic seizures

A ketogenic diet - one that is high in fat and extremely low in carbohydrates - has been known for decades to reduce seizures in some epilepsy patients.

25 Feb 2026

Disrupted lymphatic vessels may drive chronic organ transplant rejection

Despite advances in the field of organ transplantation, long-term organ rejection that can become apparent a decade or more after a heart or lung transplant remains a common problem for patients.

25 Feb 2026

Brain rhythms may explain modern digital distraction susceptibility

Scientists may have new answers to why pop-ups or notifications grab our attention. Turns out our attention is on a cycle, shifting seven to ten times per second.

25 Feb 2026

Study finds brain changes related to worse memory in football players with repetitive head impacts

In former college and professional football players, a new study has found higher levels of inflammation were associated with worse brain structure, which in turn was related to worse memory.

25 Feb 2026

Road traffic noise linked to immediate heart and blood vessel stress

A new study published in the journal Cardiovascular Research shows that a single night of road traffic noise, at levels that are typical of those living in a city, causes stress to the heart and blood vessels.

25 Feb 2026

Long-term cola intake weakens immune cell counts in controlled rat study

Replacing drinking water entirely with sugar-sweetened or sugar-free cola for eight weeks altered gut microbiota composition and immune-related indices in rats, despite no changes in body weight or blood glucose. Both beverages were associated with leukocyte reductions and organ-related biochemical shifts, with sugar-sweetened cola more strongly linked to renal markers and diet cola to elevated liver enzymes.

25 Feb 2026

Could a rare gene variant help reduce smoking? New study suggests it might

An exome-wide association study of nearly 38,000 smokers from the Mexico City Prospective Study identified rare coding variants in CHRNB3 that are associated with substantially fewer cigarettes smoked per day. Cross-ancestry analyses in European and East Asian datasets support a role for the β3 nicotinic receptor subunit in modulating smoking intensity.

25 Feb 2026

Superagers show greater neuron growth linked to strong memory

Brains of older adults with super healthy cognition grow more new neurons than those of their peers, according to a study from UIC, Northwestern University and the University of Washington.

25 Feb 2026

Chemical signatures in blood could help detect gallbladder cancer

Researchers at Tezpur University in Assam, India, working with scientists at the University of Illinois Urbana-Champaign, have identified distinct chemical signatures in blood that could help detect gallbladder cancer earlier.

25 Feb 2026

Next-generation CAR T therapy offers hope but faces clinical challenges

A new editorial perspective was published in Volume 17 of Oncotarget on February 20, 2026, titled "CAR-T therapy: Trailblazing CAR(ing) in cancer treatment."

25 Feb 2026

Unexpected behavior observed during interactions between immune cells and dying cells

Over the years, cell biology has built a detailed picture of how cells compartmentalize their internal functions. Central to this organization is the nucleus, which houses the genetic material and is separated from the cytoplasm by a robust nuclear envelope.

25 Feb 2026

Opioids offer limited short-term relief for acute pain

The world's largest review of opioid pain relievers prescribed for acute pain found these medicines provide only small, short-term relief for some acute conditions and are ineffective for some others.

25 Feb 2026

Simple blood test measuring piRNAs may help better understand health and aging

Research in Aging Cell indicates that blood levels of particular small non-coding RNAs, which regulate gene expression, may influence how long a person lives.

25 Feb 2026

Muscles retain molecular memory of repeated inactivity

Muscle loss, or atrophy, due to inactivity is common after illness, injury, hospitalization or falls, and becomes increasingly frequent with aging.

25 Feb 2026

Small RNA molecules can accurately predict survival in older adults

As people age, it becomes harder to know who is on track for healthy years ahead and who may be at higher risk for serious decline.

25 Feb 2026

Easy-to-use blood test score can help identify alcohol-related fatty liver disease

Researchers at University of California San Diego School of Medicine have developed a new, easy-to-use blood test score that can help identify when fatty liver disease is being driven by excessive alcohol use, an important distinction that often goes unrecognized in routine care.

25 Feb 2026