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Antibody halts triple-negative breast cancer in preclinical models

2025-12-05
Triple-negative breast cancer (TNBC) is one of the most aggressive and treatment-resistant forms of breast cancer. It grows quickly, spreads early and lacks the hormone receptors that make other breast cancers treatable with targeted therapies. Even when patients initially respond to treatment, the cancer often returns and is more resistant than before. A new study in Breast Cancer Research points to a promising strategy to overcome the cancer’s resistance. Researchers at MUSC Hollings Cancer Center developed an antibody that blocks several ...

Planned birth at term reduces pre-eclampsia in those at high risk

2025-12-05
Planned birth at term reduces the incidence of pre-eclampsia in women at high risk of the condition, without increasing emergency Caesarean or neonatal unit admission, according to new trial results. The PREVENT-PE trial, led by researchers from King’s College London and King’s College Hospital NHS Foundation Trust, is the first to find that a strategy of screening for pre-eclampsia risk at 36 weeks of pregnancy, and then offering planned early term delivery according to the mother’s risk, can reduce the incidence of subsequent pre-eclampsia by 30%, compared with usual care. The ...

Penguins starved to death en masse, study warns, as some populations off South Africa estimated to have fallen 95% in just eight years

2025-12-05
Penguins living off the coast of South Africa have likely starved to death en masse during their moulting season as a result of collapsing food supplies.  In fact, on two of the most important breeding colonies of the African penguin (Spheniscus demersus) — Dassen Island and Robben Island — some 95% of the birds that bred in 2004 were estimated to have died over the next eight years as a result of food scarcity.  This is the conclusion of a new study ...

New research explains how our brains store and change memories

2025-12-05
A study from the University of East Anglia is helping scientists better understand how our brains remember past events - and how those memories can change over time. A new paper published today explores episodic memory - the kind of memory we use to recall personal experiences like a birthday party or a holiday. The team say their work has important implications for mental health, education, and legal settings where memory plays a key role. Working collaboratively with the University of Texas in Dallas, the team show that memories aren’t just stored like files in a computer. Instead, they’re ...

Space shuttle lessons: Backtracks can create breakthroughs

2025-12-04
What does the space shuttle have in common with the original iPhone? According to Francisco Polidoro Jr., professor of management of Texas McCombs, they’re both breakthrough inventions that integrate webs of interdependent features. In an iPhone, he notes, its size, weight, camera, and Wi-Fi capabilities influence one another. Push one feature too far, and the phone becomes heavier, bulkier, or more expensive. Companies can’t test each feature in isolation, and they can’t experiment ...

New study finds cystic fibrosis drug allows patients to safely scale back lung therapies

2025-12-04
A new multi-site study led by researchers at CU Anschutz shows that people with cystic fibrosis (CF) who start the triple-drug therapy elexacaftor/tezacaftor/ivacaftor (ETI) can safely reduce many of their daily lung treatments while maintaining good health for years. The study was published today in the Journal of Cystic Fibrosis. “This is incredibly meaningful for individuals and families living with CF,” said lead author Scott Sagel, MD, PhD, professor of pediatrics-pulmonary medicine at the CU Anschutz School of Medicine and director of the University of Colorado Cystic Fibrosis Center. “For ...

From field to lab: Rice study reveals how people with vision loss judge approaching vehicles

2025-12-04
From field to lab: Rice study reveals how people with vision loss judge approaching vehicles Despite impaired central vision, participants relied on both vision and audition, offering new insight into mobility and safety Patricia DeLucia has spent decades studying something many of us never think about: judgments about collision that are crucial for safety. But the roots of her research stretch back to her childhood, long before she became a professor of psychological sciences at Rice University. “I grew up playing sports, and when you’re on the field, collision judgment is everything — whether a ball is coming at you, whether ...

Study highlights underrecognized link between kidney disease and cognitive decline

2025-12-04
HUNTINGTON, W.Va. – A new study published in the American Journal of Physiology - Heart and Circulatory Physiology reveals that chronic kidney disease (CKD) accelerates cognitive decline through interconnected damage to the heart and brain—and that these pathways differ markedly between men and women.   Scientists and physicians from the Marshall University Joan C. Edwards School of Medicine, in collaboration with the National Institute on Aging at the National Institutes of Health (NIH), led the study to better understand sex-specific ...

Researchers find link between psychosocial stress and early signs of heart inflammation in women

2025-12-04
Women who report high levels of psychosocial stress, such as from caregiving and lack of emotional support, show signs of early heart tissue changes associated with cardiovascular disease – an association not observed in men, a new study reveals. The results support the notion that there are sex-specific ways in which stress affects cardiovascular health and that risk-assessment processes should take psychosocial factors and mental wellness into account, the researchers said. “From an epidemiological point of view, we have known for about two decades that stress is an important risk factor in cardiovascular health for people born female. But with this research ...

Research spotlight: How long-acting injectable treatment could transform care for postpartum women with HIV

2025-12-04
Q: How would you summarize your study for a lay audience? For breastfeeding women who have HIV, consistently taking antiretroviral therapy (ART) is essential for their own health and the health of their infants. New long-acting (LA) injectable ART options, such as LA cabotegravir with rilpivirine (CAB/RPV), can help women suppress the HIV virus within their bodies — keeping them healthy and reducing transmission to their infants. Instead of daily oral pills, the injection is received every two months, making it easier for women to sustain treatment during the postpartum period and keep their medical diagnoses private. Our study focused ...

Preempting a flesh-eating fly’s return to California

2025-12-04
The last time the New World screwworm invaded the U.S., it devastated livestock and required a decades-long eradication campaign. Now, University of California Riverside researchers are launching a preemptive strike against the parasitic fly’s threatened return. The New World screwworm isn’t a worm at all. It’s the larval or maggot stage of a shiny, metallic blowfly, a species called Cochliomyia hominivorax. While many blowflies are harmless and play a vital role in decomposing dead animals, this particular species feeds on living flesh.  “Not all blowflies are this species. We don’t ...

Software platform helps users find the best hearing protection

2025-12-04
HONOLULU, Dec. 4, 2025 — The world is loud. A walk down the street bombards one’s ears with the sound of engines revving, car horns blaring, and the steady beeps of pedestrian crossings. While smartphone alerts to excessive sound and public awareness of noise exposure grows, few tools help people take protective action. To address this gap, Santino Cozza and a team from Applied Research Associates, Inc. developed the Hearing Protection Optimization Tool (HPOT). HPOT was designed to move beyond traditional noise reductions ratings and highlight performance characteristics that ...

Clean hydrogen breakthrough: Chemical lopping technology with Dr. Muhammad Aziz (full webinar)

2025-12-04
Explore the future of clean hydrogen in this recorded webinar featuring Dr. Muhammad Aziz from the University of Tokyo. Discover how chemical looping technology can produce high-purity hydrogen, capture CO₂, and recover usable heat—all within a near-zero emission process. ???? In this session, you’ll learn about: Advanced oxygen carrier materials for stable reactor performance Process intensification strategies for efficient hydrogen production Real-world applications in power generation, steelmaking, refineries, and renewable energy storage Key scientific, economic, ...

Understanding emerges: MBL scientists visualize the creation of condensates

2025-12-04
By Diana Kenney WOODS HOLE, Mass. -- One of the enigmas of life is emergence, when the whole becomes more than its parts. Flocks of birds can instantly change direction when a predator appears, guided not by a lead bird but by a collective intelligence that no single bird can possess on its own. Multitudes of molecules skitter chaotically in a cell, but certain ones find each other, interact, and give rise to sophisticated cellular structures and functions that could not have been predicted by studying the molecules alone. Understanding how emergent properties arise in cells – in this case, how liquid droplets called condensates spontaneously form from rapidly moving molecules ...

Discovery could give investigators a new tool in death investigations

2025-12-04
A discovery by FIU researchers could help forensic investigators close the gap on estimating time of death.   Often, death investigations rely on maggots — the larvae of blow flies that are among the first insects to colonize a body after death — to estimate how long a person has been dead. The presence of eggs or the sizes of the maggots are indicators of time since death. Yet, there is a stage in their development, where the maggot’s physical form changes very little, which limits the precision of time of death estimates. While changes may not be visible on a maggot’s outside, their ...

Ultrasonic pest control to protect beehives

2025-12-04
HONOLULU, Dec. 4, 2025 — Bees, and other pollinator species, are dying. Between pesticides, the climate crisis, and habitat loss, bee colonies are becoming weaker, leaving them more vulnerable to parasites like the greater and lesser wax moths. Vulnerable bees have cascading effects on beekeepers and food security in the apiculture industry. A team of researchers from the University of Strathclyde and Japan’s National Agriculture and Food Research Organization is exploiting the unusual hearing of wax moths to develop a sustainable and efficient ...

PFAS mixture disrupts normal placental development which is important for a healthy pregnancy

2025-12-04
The placenta regulates the exchange of nutrients, gases, and metabolic products between a pregnant woman and the foetus, thereby ensuring healthy development. The first 90 days of pregnancy are particularly important, because the baby’s organs begin to develop during this sensitive period. Although the placenta has barrier mechanisms designed to prevent the passage of dangerous substances into the baby, PFAS can accumulate in the body, interfere with foetal development, and, in severe cases, increase the risk of miscarriage. “For an accurate risk assessment, ...

How sound moves on Mars

2025-12-04
HONOLULU, Dec. 4, 2025 — Acoustic signals have been important markers during NASA’s Mars missions. Measurements of sound can provide information both about Mars itself — such as turbulence in its atmosphere, changes in its temperature, and its surface conditions — and about the movement of the Mars rovers. Using these sound measurements to the best extent possible requires an accurate understanding of how sound propagates on Mars. Charlie Zheng, a professor of mechanical and aerospace engineering at Utah State University, and his doctoral student Hayden Baird, who is partially sponsored by the Utah Space Grant Consortium Graduate ...

Increasing plant diversity in agricultural grasslands boosts yields, reducing reliance on fertilizer

2025-12-04
Higher plant diversity in agricultural grasslands increases yields with lower inputs of nitrogen fertiliser. That is the headline finding of a landmark, international study led by Trinity College Dublin that paints a promising picture for more sustainable agriculture. And in further good news, the research shows that under warmer temperatures, the yield benefits of more diverse grasslands further increase. This highlights the climate adaptation potential of multispecies mixtures in an era where the global climate crisis is driving rising temperatures in many countries. The research, published today in leading ...

Scientists uncover a new role for DNA loops in repairing genetic damage

2025-12-04
When DNA breaks, cells must repair it accurately to prevent harmful mutations. Researchers have discovered that during a key repair process called homologous recombination, the cell uses loops in its DNA structure to speed up the search for an intact copy of the damaged region. These loops act like shortcuts, allowing the repair machinery to scan along the chromosome in a directed way rather than randomly. This finding, published today in Science, reveals an unexpected function for chromatin loops—not just in organizing the genome, but also in helping maintain its integrity. “Homologous recombination is a key DNA repair process often linked to cancer, but ...

AI chatbots can effectively sway voters – in either direction

2025-12-04
ITHACA, N.Y. -- A short interaction with a chatbot can meaningfully shift a voter’s opinion about a presidential candidate or proposed policy in either direction, new Cornell University research finds. The potential for artificial intelligence to affect election results is a major public concern. Two new papers – with experiments conducted in four countries – demonstrate that chatbots powered by large language models (LLMs) are quite effective at political persuasion, moving opposition voters’ preferences ...

Study reveals 'levers' driving the political persuasiveness of AI chatbots

2025-12-04
Even small, open-source AI chatbots can be effective political persuaders, according to a new study. The findings provide a comprehensive empirical map of the mechanisms behind AI political persuasion, revealing that post-training and prompting – not model scale and personalization – are the dominant levers. It also reveals evidence of a persuasion-accuracy tradeoff, reshaping how policymakers and researchers should conceptualize the risks of persuasive AI. There is a growing concern amongst many that advances in AI – particularly conversational ...

'Tiny' tyrannosaurid, Nanotyrannus lancensis, was a distinctive species, not juvenile T. Rex

2025-12-04
Microscopic analysis of an unconventional throat bone helps resolve a long-standing debate in paleontology, researchers report, revealing evidence that Nanotyrannus lancensis – long thought by many to be a teenage Tyrannosaurus rex – was in fact a fully mature, distinct species of smaller tyrannosaurid. Because the fossil record is often fragmentary, it is difficult to discern the full range of distinct dinosaur species that lived in ancient ecosystems. This is made more challenging when trying to determine true new species from juveniles of known ones. One of the most ...

Scientists capture first detailed look inside droplet-like structures of compacted DNA

2025-12-04
Inside human cells, biology has pulled off the ultimate packing job, figuring out how to fit six feet of DNA into a nucleus about one-tenth as wide as a human hair while making sure the all-important molecules can still function. To compress itself, DNA wraps around proteins to form nucleosomes that are linked together like beads on a string. These strings coil into compact chromatin fibers, which are further condensed inside the nucleus. It was unclear how this additional compaction process happened. Then, in 2019, HHMI Investigator Michael Rosen and his team at UT Southwestern Medical Center reported that synthetic nucleosomes created ...

Return of the short (tyrant) king: A new paper by Dinosaur Institute researcher shows Nanotyrannus was not a juvenile T. Rex

2025-12-04
Los Angeles, CA (December 4, 2025)—For decades, paleontologists argued over the lone skull used to establish the distinct species Nanotyrannus. Was it truly a separate species or simply a juvenile Tyrannosaurus rex? A new paper published in Science has definitively shown that Nanotyrannus is, in fact, nearly fully grown and not an immature T. rex, at the same time revealing new insights into how these giant predators achieved such terrifying sizes so quickly.  A multi-institutional team, including Dinosaur Institute Postdoctoral Fellow, Dr. Zach Morris, examined the much-debated Nanotyrannus holotype—the specimen used to name ...
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