A multi-institution study tracked myelin swellings - long considered fixed precursors to multiple sclerosis lesions - and found they respond to nerve fiber activity in real time. Higher activity produces more and larger swellings; reduced activity allows recovery. The work, published in Science, was carried out using advanced microscopy that can observe the process in living tissue over time.

The star LHS 1903 hosts four planets: rocky, gaseous, gaseous, then rocky again - a sequence planet formation theory doesn't predict. Data from ESA's Cheops satellite revealed the anomalous outer rocky planet, which appears to have formed after its host system had largely run out of the gas considered essential for planet building, providing the strongest evidence yet for a decade-old alternative formation hypothesis.

The first study to examine whether everyday emotional states predict climate policy support found a clear difference between fear and dread in 418 UK participants. Feeling fearful correlated with greater support for measures like airline carbon taxes and fossil fuel levies. Dread - characterized by a sense of inevitability and helplessness - was associated with lower policy support, suggesting emotional intensity has a ceiling effect.

Most galaxy mergers produce supermassive black hole pairs, but only widely separated ones have been confirmed. A new theoretical framework shows that as these binaries spiral closer, their combined gravitational field sweeps a diamond-shaped lensing zone across background stars, creating repeating brightness bursts whose timing and intensity encode the pair's mass and orbital decay rate.

Placenta accreta spectrum causes massive hemorrhage and maternal death, yet standard ultrasound screening misses about half of all cases. A Baylor College of Medicine team tested an AI model on 113 at-risk patients and found zero false negatives, with only two false positives - early evidence that machine learning could improve prenatal detection rates.

The 2025 Global Physics Photowalk drew hundreds of images from amateur and professional photographers given rare access to particle physics facilities. A photograph from Italy's INFN National Laboratories of Frascati took top prize, depicting a researcher dwarfed by a cryogenic dark matter detector operating near absolute zero.

New mouse research pinpoints a group of neurons in the ventromedial hypothalamus that fire during treadmill running and remain active long afterward. When those cells are silenced - even only post-exercise - endurance gains disappear entirely, suggesting the brain consolidates physical training much like it consolidates memory.

About The Study: In this nationwide cohort of U.S. veterans with type 2 diabetes, semaglutide initiators had a 2-fold nonarteritic anterior ischemic optic neuropathy (NAION) risk than sodium-glucose cotransporter-2 inhibitor initiators, while the absolute risk was low. Clinicians and patients should be counseled on the rare but evident increased risk of NAION after semaglutide initiation.  Corresponding Author: To contact the corresponding author, Jennifer S. Lee, MD, PhD, email jennifer.lee23@va.gov. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (doi:10.1001/jamaophthalmol.2025.6262) Editor’s ...

About The Study: The findings of this cohort study suggest that access to higher-level neonatal care is limited at rural birth hospitals, as less than 20% offered this care in 2022 vs 74% of urban hospitals. While rural hospitals are losing childbirth care capacity, urban birth hospitals are expanding higher-level neonatal care, accentuating geographic discrepancies in access to care for high-risk infants.  Corresponding Author: To contact the corresponding author, Katy B. Kozhimannil, PhD, MPA, email kbk@umn.edu. To access the embargoed study: Visit our For The Media website at this link ...

Our past experiences shape how much we eat and where and what we choose to eat. Using preclinical models, researchers from Mass General Brigham and the Broad Institute of MIT and Harvard have identified brain cells that translate contextual information into appetite control. The findings suggest that dysfunction in this brain circuit could be a factor in disordered eating and obesity, meaning that these neurons could be a new target for treatment. Results are published in Neuron. “We identified a neural circuit that is responsible for linking our prior experiences with ...

When the time is right, a good love song can make all the difference.  A study from the University of California, Davis, found that temperature affects the sound and quality of male frogs’ mating calls. In the colder, early weeks of spring, their songs start off sluggishly. In warmer weather, their songs pick up the pace, and female frogs take note.  Better songs not only make the males more attractive mates, but they also suggest to females that environmental conditions are suitable for reproduction.  “The song of frogs really depends on the temperature of the environment,” said lead ...

A new study has used ancient DNA to reveal that hunter-gatherers in Belgium, the Netherlands and nearby parts of Germany adapted to farming thousands of years later than elsewhere in Europe. It has also uncovered the pivotal role of women in the process.   The research, published in Nature, involved scientists from Bournemouth University (BU) and the University of Huddersfield and was led by David Reich ...

WASHINGTON — Researchers have developed a highly sensitive light-based sensor that can detect extremely low concentrations of cancer biomarkers in the blood. The new technology could one day make it possible to spot early signs of cancer and other conditions using a simple blood test. Biomarkers such as proteins, DNA or other molecules can be used to reveal the presence, progression or risk of cancer and other diseases. However, one of the main challenges in early disease diagnosis is the extremely low concentration of biomarkers present at the onset. “Our sensor combines ...

OAK BROOK, Ill. — With a new MRI technique that shows both heart tissue and blood flow simultaneously, physicians can see where heart defects occur and precisely plan to repair them, according to new research published today in Radiology: Cardiothoracic Imaging, a journal of the Radiological Society of North America (RSNA). Researchers at Children’s Hospital of Philadelphia (CHOP) in Pennsylvania have developed 3D volume rendering methods for cardiac MRI that display complex structures within the heart and show how blood moves through them, much like ultrasound images ...

Scientists have identified a pattern of gene activity present in some female survivors of childhood abuse that is associated with an elevated risk of depression. “We know childhood abuse increases the risk of depression at the population level, but at the individual level it’s much harder to predict who will actually develop the disorder,” said senior author Patricia Silveira, professor in McGill’s Department of Psychiatry and researcher at the Douglas Mental Health University Institute. “Our findings point to a biological mechanism that may help explain who is more at risk, at least in women.” This pattern ...

Researchers at McGill University and the United States Forest Service have found that plants living in areas where human activity has caused population crashes carry long-lasting genetic traces of that history, such as reduced genetic diversity. Because genetic diversity helps species adapt to climate change, disease and other stresses, the study suggests it is vital to consider a population’s history-influenced genetics alongside its size and habitat in conservation planning. “Two populations may look equally healthy on the surface, yet one may be far more vulnerable to future environmental change because it lacks genetic diversity and consists of individuals with ...

DALLAS, Feb. 12, 2026 — When a medical emergency happens, time matters and a quick response is needed[1]. During American Heart Month 2026, the National Fraternal Order of Police joins the American Heart Association in urging Americans everywhere to be the help until help arrives and learn how to respond in a medical emergency such as cardiac arrest – when providing help like cardiopulmonary resuscitation (CPR) can be the difference between life and death. For the fourth consecutive year, American Heart Month highlights the need to be prepared in an emergency and provide CPR because immediate action can change outcomes. In fact, providing ...

A new national study finds a concerning surge in teen “sexting,” which frequently exposes them to serious risks, including sextortion, coercion and privacy violations. Sexting involves sending or receiving sexually suggestive images or video, while sextortion is the threat to share explicit or intimate images without consent to pressure someone into providing more images, sexual favors, money or other demands. Sextortion is especially harmful for teens, who are still developing impulse control, risk assessment and emotional regulation. Using a national sample of 3,466 adolescents aged 13 to 17 years in the United States, researchers from Florida ...

Liver cirrhosis, the common endpoint of chronic liver disease, is characterized by diffuse fibrosis, pseudolobule formation, and vascular distortion. Its clinical spectrum ranges from asymptomatic early stages to advanced disease with severe complications like ascites, variceal bleeding, hepatic encephalopathy (HE), hepatorenal syndrome (HRS), and hepatocellular carcinoma (HCC). To address evolving clinical needs and integrate the latest evidence, the Chinese Society of Hepatology has updated the 2019 guidelines, renaming ...

CAMBRIDGE, Mass., February 12, 2026 - Insilico Medicine (3696.HK), a clinical-stage, generative AI-driven drug discovery company, today announced the launch of a new interactive webpage highlighting the Rentosertib story as featured in a recent Harvard Business School case study, providing a practical, public-facing overview of how AI can be applied across the drug discovery process. The Harvard Business School case, Insilico’s Rentosertib Dilemma: A Star in the Pipeline?, examines the development of Insilico’s lead asset, Rentosertib, which completed a Phase IIa clinical evaluation for idiopathic pulmonary fibrosis (IPF). The case describes Rentosertib as the world’s ...

As the world is moving towards more sustainable energy solutions, the emergence of next-generation batteries is a crucial and indispensable milestone. One such next-generation battery is the lithium-ion battery (LIB), which has been currently dominating the energy solutions sector. However, lithium is sparsely distributed across geographies, increasing extraction difficulties and battery production cost. Other next-generation batteries, such as sodium-ion batteries (NIBs) and potassium-ion batteries (KIBs), are promising alternatives to LIBs, offering resource-unconstrained, cost-effective, and sustainable ...

NEWS EMBARGOED UNTIL 4:00 A.M. PACIFIC TIME THURSDAY, FEB. 12, 2026 NOTE TO EDITORS: PHOTO AVAILABLE Contact:      Carly Murphy                      949-501-1008                      murphyco@uci.edu   Public health researchers use newly developed data analysis method to build the first cell type-specific gene regulatory maps for Alzheimer’s disease, revealing the genetic mechanisms operating within patients’ brains. The study also identified ...

Cancer researchers working on immunotherapies have made a big discovery: SLAMF6, a molecule on the surface of immune cells that prevents T cells from effectively attacking tumours – and, in mice, they've found a way to neutralize it.  Led by Université de Montréal medical professor Dr. André Veillette, director of the molecular oncology research unit at the UdeM-affiliated Montreal Clinical Research Institute (IRCM), the breakthrough is detailed in a study published in Nature. An internal brake independent of tumor cells In their lab, Veillette and his team demonstrated that, ...

Artificial intelligence is increasingly able to simulate human behavior and answer online surveys and political polls, putting the reliability of survey-based research at risk. Consequences can be serious not only for science and research - online surveys are a cornerstone of modern social-science research - but also for policy and participation of people in democratic processes, as surveys are widely used in political polls. This is a worry expressed in a comment in Nature by three researchers ...

Ambitious climate action to improve global air quality could save up to 1.32 million lives per year by 2040, according to a new study. The research, led by Cardiff University, shows how developing countries rely heavily on international cooperation to see these benefits, because much of their pollution originates outside their borders. The first-of-its-kind study analysed these cross-border pollution “exchanges” for nearly every country – 168 in total. Their findings, published in Nature Communications, reveal how a fragmented world, with little collaborative climate mitigation policymaking, would lead ...