North American bird populations are shrinking most rapidly in the very areas where they are still most abundant, according to a new study leveraging citizen science data for nearly 500 bird species. The findings reveal both urgent threats and potential opportunities for targeted conservation and recovery. Bird populations are experiencing steep declines globally, with North America losing more than 25% of all breeding birds since 1970. While long-term monitoring has revealed these troubling trends, effective conservation requires knowing where populations are declining most. However, this goal has been limited by the ...

In many countries, males are more likely than females to get sick and die from three common conditions, and less likely to get medical care, according to a new study by Angela Chang of the University of Southern Denmark, and colleagues, published May 1st in the open-access journal PLOS Medicine. Many health policies are the same for males and females, even though there is strong evidence that sex and gender can substantially influence a person’s health outcomes. In the new study, researchers gathered ...

Roses, long admired for their beauty and symbolic richness, owe their iconic petal shape to a mechanical process that has remained largely mysterious—until now. According to a new study, the pointed cusps that gradually form at the edge of rose petals as they grow are shaped not by the well-known mechanics behind wavy leaves, but by a distinct geometric frustration called Mainardi-Codazzi-Peterson (MCP) incompatibility. According to the findings, this stress-focusing phenomenon not only sculpts the rose’s form but also feeds back to influence how the petal grows, offering new insights into the mechanics of nature, and potential inspiration for the design of bio-inspired ...

New findings challenge assumptions about species’ ability to persist under climate change. Following a nine-year study of over 100,000 individual Drummond's rockcress plants – a common plant found in mountains across North America – researchers reveal that climate change is outpacing natural gene flow, threatening population survival even within a broadly distributed plant species’ native range. The findings highlight the potential role of assisted gene flow in plant conservation. Climate change is rapidly altering where ...

Researchers have found a new ally in the fight against a serious liver disease: a symbiotic gut-dwelling fungus that produces a molecule shown to be capable of reversing disease progression in mice. The findings may inform future therapeutic approaches to treat metabolic dysfunction-associated steatohepatitis (MASH), a highly prevalent disease. Metabolic dysfunction–associated fatty liver disease (MAFLD) now affects roughly one in four adults worldwide, making it the most prevalent chronic liver condition and a pressing global health issue. The more severe ...

ITHACA, N.Y. —A groundbreaking study published today in Science reveals that North American bird populations are declining most severely in areas where they should be thriving.  Researchers from the Cornell Lab of Ornithology analyzed 36 million bird observations shared by birdwatchers to the Cornell Lab’s eBird program alongside multiple environmental variables derived from high-resolution satellite imagery for 495 bird species across North America from 2007 to 2021.  The team set out to develop reliable ...

The ‘cell of origin’ of the second most common lung cancer and the way that it becomes dominant in the lung have been discovered, in a new study in mice and humans from researchers at UCL, the Wellcome Sanger Institute and the University of Cambridge. The study, published in Science, found that a population of basal cells1 found in the trachea (windpipe) outcompetes other cell types and becomes dominant, eventually invading and occupying large areas of the lung. It is from these cells, ...

DETROIT – The number of people suffering from osteoarthritis is expected to top 1 billion by 2050. The biggest risk factor for the prevalent, often painful, chronic joint disease is aging. And like aging, there is currently no way to stop it. A discovery by scientists at Henry Ford Health + Michigan State University Health Sciences could pave the way for new breakthroughs in detecting and treating the disease. Their findings were recently published in Nature Communications. “Our hope is that this discovery will one day allow doctors to catch ...

Some public transit shelter designs can actually do more harm than good when it comes to shielding from summer temperatures, according to a study led by UTHealth Houston. The research was published in Transportation Research Part D: Transport and Environment. Public transit can be more affordable, healthy, and safe than commuting by car. Research supports that public transportation is also better for the environment by limiting emissions and air pollution. According to the American Public Transportation Association, more than two-thirds of transit users in the U.S. walk to the transit stop or station. However, during ...

WASHINGTON—A new expert opinion document jointly released by the Society for Cardiovascular Angiography and Interventions (SCAI) and the Society of Cardiovascular Computed Tomography (SCCT) presents a comprehensive framework for using coronary computed tomography angiography (CCTA) to guide percutaneous coronary intervention (PCI). Published in JSCAI, “Coronary Computed Tomography Angiography to Guide Percutaneous Coronary Intervention: Expert Opinion from a SCAI/SCCT Roundtable” was developed through an October 2024 multidisciplinary roundtable, reflecting ...

Washington, D.C. – May 1, 2025 – New findings from multiple studies demonstrate that glucagon-like peptide-1 receptor agonists (GLP-1RAs), a class of medications used to treat type 2 diabetes, play a significant role in improving cardiovascular outcomes like heart failure (HF), acute myocardial infarction (AMI), peripheral artery disease (PAD), and ST-elevation myocardial infarction (STEMI). The data were presented today at the Society for Cardiovascular Angiography & Interventions ...

Washington, D.C. – May 1, 2025 – New data highlights juxtaposing trends in serious obesity-related cardiovascular events. A recent study details the obesity paradox in patients with critical limb ischemia (CLI), demonstrating lower mortality in patients with obesity by 50% compared to non-obese patients. Whereas separate data suggests there is a rising mortality rate of almost four-fold in premature cardiac arrest and acute myocardial infarction (AMI) patients with obesity, specifically in racial minorities and rural communities. The data were presented today at the Society for Cardiovascular Angiography & Interventions (SCAI) 2025 ...

Santa Cruz, Calif.—Animal research on biomusicality, which looks at whether different species are capable of  behaving in ways that show they recognize aspects of music, including rhythm and beat, remains a tantalizing field at the intersection of biology and psychology. Now, the highly trained California sea lion at UC Santa Cruz who achieved global fame for her ability to bob her head to a beat is finally back: starring in a new study that shows her rhythm is just as precise—if not better—than humans. Ronan first shimmied onto the world stage in 2013, when researchers at the university’s Long Marine Laboratory reported that, not only ...

CAMBRIDGE, MA -- The composition of bacterial populations living on our faces plays a significant role in the development of acne and other skin conditions such as eczema. Two species of bacteria predominate in most people, but how they interact with each other, and how those interactions may contribute to disease, has been difficult to study. MIT researchers have now revealed the dynamics of those interactions in more detail than previously possible, shedding light on when and how new bacterial strains emerge on the skin of the face. Their findings could help guide the development of new treatments for ...

About The Study: The findings of this study suggest a narrowing of racial and ethnic disparities in receipt of ERBB2 (formerly HER2 or HER2/neu)-targeted therapies over time among older Medicare beneficiaries with ERBB2-positive breast cancer. Future research is needed to understand the practices that contributed to the narrowing of racial and ethnic disparities and to develop implementation strategies to effectively improve the quality and equity of breast cancer care. Corresponding Author: To contact the corresponding author, Utibe R. Essien, MD, MPH, email uessien@mednet.ucla.edu. To access the embargoed ...

Key takeaways · UCLA and UCSD scientists inserted DNA-encoding methylmercury detoxification enzymes into the genome of an abundant human gut bacterium. The engineered bacterium detoxified methylmercury in the gut of mice and dramatically reduced the amount that reached other tissues, such as the brain and liver. · Mice given an oral probiotic containing the engineered microbe and fed a diet high in bluefin tuna had much lower methylmercury levels than expected, suggesting that a probiotic might eventually make it safer for people to consume fish. · Researchers performed ...

About The Study: The prevalence and degree of hearing loss were highest among white male individuals and lowest among Black female individuals in this cohort study of 1,787 adults. Some factors associated with hearing loss, including noise exposure, differed across sex-specific and race-specific groups. Hearing loss is an important public health concern that could be addressed through tailored interventions to reduce its risk across populations. Corresponding Author: To contact the corresponding author, Lauren K. Dillard, PhD, AuD, email dillalau@musc.edu. To ...

Fossils of footprints over 160 million years old have helped palaeontologists at the University of Leicester to narrow down when pterosaurs adapted to live on the ground. These awe-inspiring flying reptiles of the Mesozoic era are often imagined soaring over the heads of dinosaurs. But new research shows that some of these ancient creatures were just as comfortable walking on the ground. In a groundbreaking new study published today in Current Biology (1 May), scientists at the University of Leicester have ...

Study data reveal how a specific sequence of cancer therapies can improve outcomes for patients with hard-to-treat lymphomas Relapsed/refractory (R/R) mature T and natural killer (NK)-cell lymphomas (TNKL) are aggressive blood cancers often resistant to frontline therapies. A team of Mass General Brigham researchers found that patients with these lymphomas had improved survival rates when treated with small molecule inhibitors as second-line therapy, followed by epigenetic modifiers as third-line therapy. Results of the study are published in the British Journal of Haematology. “Our robust ...

A team of researchers from the Keck School of Medicine of USC has developed an advanced tool for analyzing chimeric antigen receptor (CAR) T cells, including how they evolve during manufacturing and which ones are most effective at killing cancer. Using the platform, which leverages a laser-based technology known as spectral flow cytometry, researchers have already found one key insight: CAR T cells are better equipped to fight cancer after a shorter five-day expansion process than at the 10-day mark. The study was just published in the 25th anniversary special issue of Molecular Therapy, the flagship journal of the American Society of Gene & Cell Therapy. CAR ...

“Our results indicated compromised NAD+ metabolism in WS while NAD+ augmentation decreased senescence in both WS mesenchymal stem cells (MSCs) and primary fibroblasts, shedding light on potential therapeutics.” BUFFALO, NY — May 1, 2025 — A new research paper was published in Aging (Aging-US) on April 2, 2025, as the cover of Volume 17, Issue 4, titled “Decreased mitochondrial NAD+ in WRN deficient cells links to dysfunctional proliferation.” In this study, the team led by first author Sofie Lautrup ...

(Toronto, May 1, 2025) JMIR Publications invites submissions to a new theme issue titled “The Importance of Telerehabilitation and Future Directions for the Field” in its open access journal JMIR Rehabilitation and Assistive Technologies. The premier, peer-reviewed journal is indexed in PubMed/PubMed Central, SCOPUS, DOAJ, Web of Science, Sherpa/Romeo and EBSCO/EBSCO Essentials. The field of telerehabilitation has rapidly evolved, demonstrating its effectiveness, feasibility, and safety across various medical conditions. As outlined ...

DALLAS, May 1, 2025 — Every 40 seconds someone in the U.S. has a stroke[1], one of the leading causes of serious, long-term disability. To spotlight the courage and dedication of those impacted by stroke, the American Stroke Association, a division of the American Heart Association, is honoring seven nationwide recipients through its annual Stroke Hero Awards. The awards celebrate stroke survivors, caregivers, health care professionals and advocates who are advancing awareness, education and support for the stroke community nationwide. ...

The National Multiple Sclerosis Society has committed $18.1 million in multi-year funding to support research projects aligned with its Pathways to Cures roadmap that focuses on three critical areas: stopping MS, restoring function and ending MS.  The new projects include 16 research grants and 28 training fellowships and early career awards in the United States and internationally. The Society is committed to driving the best, most promising science and to training the next generation of pioneering MS researchers. More than 100 senior scientists from research institutions around the country, and a special committee ...

Miami (May 1, 2025) – Virtual pulmonary rehabilitation is a safe, effective alternative to traditional pulmonary rehabilitation programs for people with chronic obstructive pulmonary disease (COPD) who also require supplemental oxygen, according to a new report. The report is published in the March 2025 issue of Chronic Obstructive Pulmonary Diseases: Journal of the COPD Foundation, a peer-reviewed, open-access journal. COPD is an inflammatory lung disease, comprising several conditions, including ...