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Science News Archive 2025 - Page 370


Page 370 of 574

Study finds people prefer AI chatbots when discussing embarrassing health info — but humans when they are angry

A recent study from the University of Kansas found that people tend to prefer AI chatbots when discussing sensitive or embarrassing topics like health information, due to their anonymity and nonjudgmental nature. However, when individuals are angry, they still prefer human interaction.

SourceUniversity of Kansas·JournalInternational Journal of Human-Computer Interaction·TypeRandomized controlled/clinical trial·DateFeb 24, 2025

Improving the distribution of green spaces in Barcelona could prevent 178 premature deaths each year

A study by Barcelona Institute for Global Health estimates that increasing green spaces in the city could prevent 178 premature deaths per year. The proposed Green Corridors plan would lead to a 3.64% increase in green space, reducing mortality rates and heat-related deaths.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironment International·TypeComputational simulation/modeling·DateFeb 24, 2025

Mortality among US physicians and other health care workers

A recent study found that US physicians experienced lower mortality rates compared to the general population, but this benefit did not extend to female or racial and ethnic minority groups. The study highlights the need for renewed efforts to address health inequities within the healthcare workforce.

SourceJAMA Network·JournalJAMA Internal Medicine·DateFeb 24, 2025

New USF study identifies urgent need to protect coastal marine ecosystems

A new USF study emphasizes the importance of protecting coastal marine ecosystems, particularly tidal flats, which provide critical habitats for fish populations and contribute to global seafood supplies. The team recommends adopting core strategies for boaters, anglers, wildlife managers, and policymakers to prioritize preservation.

SourceUniversity of South Florida·JournalFisheries·TypeObservational study·DateFeb 24, 2025

Unexpected discoveries in study of giraffe gut flora

Researchers have discovered that giraffes maintain species-specific gut flora, even when eating different sets of plants. This finding has significant implications for the conservation of endangered giraffe species, highlighting the importance of understanding their diets and habitats to ensure their survival.

SourceUppsala University·JournalGlobal Ecology and Conservation·TypeObservational study·DateFeb 24, 2025

One day of sleep deprivation can alter your immune system and increase inflammation

Research reveals that even a single night of sleep deprivation can alter the profile of immune cells, similar to those found in individuals with obesity. This suggests that the immune system is highly sensitive to sleep patterns and may contribute to long-term inflammatory states and increased risk of disease.

SourceAmerican Association of Immunologists Inc·JournalThe Journal of Immunology·TypeExperimental study·DateFeb 24, 2025

Research suggests common viral infection worsens deadly condition among premature babies

Researchers found that cytomegalovirus infection significantly worsens necrotizing enterocolitis in mouse models, triggering inflammation and disrupting energy production. The study provides insight into the underlying mechanisms of NEC and may lead to the development of new treatments for this devastating condition.

SourceJohns Hopkins Medicine·JournalCellular and Molecular Gastroenterology and Hepatology·DateFeb 24, 2025

Reporting of early symptoms of dementia varies across ethnic groups, study finds

A new study found that people from minority ethnic groups are more likely to report non-cognitive symptoms, such as pain and dizziness, before receiving a dementia diagnosis. This can lead to delays in diagnosis and impact health inequalities. The research aims to improve culturally fair recognition of possible dementia in primary care.

SourceQueen Mary University of London·JournalAlzheimer s & Dementia·TypeObservational study·DateFeb 24, 2025

Mega-iceberg from Antarctica on collision course with South Georgia: Harbinger of things to come?

Researchers from Utrecht University studied icebergs' routes during rapid ice cap deterioration and found evidence of ancient material from Antarctica near South Orkney Island. The study suggests that Antarctica had an ice cap in the late Eocene, and large icebergs could survive in warm ocean conditions.

SourceUtrecht University·JournalClimate of the Past·TypeComputational simulation/modeling·DateFeb 24, 2025

Chung-Ang University uncovers porcine reproductive and respiratory syndrome virus’s impact on swine immunity

Researchers analyzed protein-coding RNA transcripts from single cells and lung fluid of infected pigs, monitoring immune cell alterations triggered by PRRSV strains of varying virulence. They found that high-virulence PRRSV caused severe lung damage and immune imbalance, while less virulent strains led to delayed lung damage with fewer...

SourceChung Ang University·JournalNature Communications·TypeExperimental study·DateFeb 24, 2025

Predictors and reasons for unplanned early rehospitalization in lung transplant recipients: A retrospective cohort study

Lung transplant patients with higher preoperative nutrition risk scores and longer post-operative mechanical ventilation durations are more likely to experience unplanned early rehospitalization within 30 days. Improving preoperative nutritional status and reducing mechanical ventilation duration may help reduce early readmissions.

SourceNational Center for Respiratory Medicine·JournalJournal of Thoracic Disease·TypeObservational study·DateFeb 24, 2025

Not all heart inflammation is the same

A study published in Nature Cardiovascular Research identified distinct immune signatures in myocarditis caused by SARS-CoV-2 infection and mRNA vaccines compared to non-COVID-19 myocarditis. The findings suggest a stronger immune response in post-COVID-19 myocarditis, while the inflammation appeared milder in post-vaccination cases.

SourceMax Delbrück Center for Molecular Medicine in the Helmholtz Association·JournalNature Cardiovascular Research·TypeExperimental study·DateFeb 24, 2025

Unlicensed retailers provide youths with easy access to cannabis in New York City

A study by Columbia University found that unlicensed dispensaries in New York City often lack effective age verification processes, allowing youth access to high-potency cannabis. Licensed retailers, on the other hand, were more likely to follow state regulations and post certificates of analysis for their products.

SourceColumbia University Irving Medical Center·JournalPEDIATRICS·TypeObservational study·DateFeb 24, 2025

HKUMed reveals genetic evidence that diabetes drug GLP-1 receptor agonists achieve weight loss primarily by reducing fat mass more than muscle

Researchers found that GLP-1 receptor agonists decrease whole-body fat mass by about 7.9 kg for every unit reduction in BMI, while muscle mass decreases by 6.4 kg. This suggests that GLP-1 receptor agonists are more effective at reducing overall body fat than muscle mass.

SourceThe University of Hong Kong·JournalDiabetes Obesity and Metabolism·TypeExperimental study·DateFeb 23, 2025

Novel bifacial linker developed to prevent heterointerfacial delamination in flexible perovskite solar cells

A novel bifacial linker, potassium benzyl(trifluoro)borate (BnBF3K), has been developed to prevent heterointerfacial delamination in flexible perovskite solar cells. This study significantly enhances device performance and mechanical stability by optimizing adhesion at the SnO2/perovskite interface.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalAdvanced Materials·TypeCommentary/editorial·DateFeb 23, 2025

Optical nanotweezers based on all-dielectric resonant structures

Recent research progress in optical nanotweezers based on dielectric resonant structures has been reviewed, highlighting various excitation methods and techniques for electromagnetic field hotspot creation. The technologies have shown promise in biochemistry and cell detection applications with minimized thermal effects.

SourceAdvanced Devices & Instrumentation·JournalAdvanced Devices & Instrumentation·TypeNews article·DateFeb 23, 2025

GPR107 deficiency linked to kidney damage in diabetes, potential for new therapies

Researchers identified GPR107 as a key regulator of COL4 levels in the kidney, finding that reduced GPR107 contributes to harmful COL4 accumulation and kidney damage. Strategies aimed at restoring or enhancing GPR107 function could represent a novel approach to preventing diabetic nephropathy progression.

Umbilical cord mesenchymal stem cells with reduced immune rejection and enhanced efficacy for intervention in severe acute pancreatitis

Researchers developed MSCs with aloe emodin-loaded nanoparticles and IFN-γ pretreatment, which inhibited CD4+T cell activation and reduced inflammation in mouse models. The combination also preserved pancreatic structure and function, holding promise for clinical application.

SourceSichuan International Medical Exchange and Promotion Association·JournalMedComm – Biomaterials and Applications·DateFeb 23, 2025

Zero-shot AI for remote sensing: A new pipeline for automated image segmentation

Researchers developed a new zero-shot AI pipeline that leverages open-source foundation models like Segment Anything Model (SAM) and Grounding DINO to improve accuracy in automated image segmentation for remote sensing. The pipeline achieves outstanding segmentation results, reaching up to 99% accuracy, and operates in a zero-shot manner.

SourceKeAi Communications Co., Ltd.·JournalArtificial Intelligence in Geosciences·TypeImaging analysis·DateFeb 22, 2025

Surgery may improve memory and psychological health for Chiari malformation patients, Pitt and UPMC surgeons report

A study published in the Journal of Neurosurgery found that surgery can alleviate psychiatric distress and improve cognitive function in patients with Chiari Malformation type 1. Nearly 90% of patients showed improvements in cognitive function or psychiatric symptoms, with many reporting a significant reduction in brain fog.

SourceUniversity of Pittsburgh·JournalJournal of Neurosurgery·DateFeb 21, 2025

Stealth virus: Zika virus builds tunnels to covertly infect cells of the placenta

Researchers discovered that Zika virus uses a tunneling strategy to spread in placental cells, hijacking mitochondria to augment its propagation and survival. The study found that the formation of tiny tunnels is driven exclusively by a Zika protein called NS1, which triggers tunnel formation in uninfected cells.

SourceBaylor College of Medicine·JournalNature Communications·TypeExperimental study·DateFeb 21, 2025