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Science News Archive February 2025 - Page 11


Page 11 of 44

Bigger animals get more cancer, defying decades-old belief

Researchers found that larger species have higher cancer rates than smaller ones, with some species even having better natural defences against cancer. The study challenged the long-standing Peto's paradox and provided insight into how superior mechanisms of cellular defence can evolve in larger species.

SourceUniversity of Reading·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateFeb 24, 2025

Suicide prevention awareness campaigns are not optimized for older adults despite being at highest risk

A new study reveals that most well-known national suicide prevention organizations do not have easily accessible resources targeting older adults, who are at the highest risk of suicide. The findings highlight the urgent need for targeted campaigns and tailored prevention programs that address the unique healthcare needs of older adults.

SourceMass General Brigham·JournalAmerican Journal of Geriatric Psychiatry·TypeContent analysis·DateFeb 24, 2025

New study identifies unique white matter astrocytes with regenerative potential

Researchers at Helmholtz Munich identified distinct subtypes of white matter astrocytes, including one that can multiply and support brain repair. These findings raise possibilities for regenerative medicine and therapies for brain injuries and neurodegenerative diseases.

New AI model measures how fast the brain ages

A new AI model measures how fast the brain ages by analyzing MRI scans, providing a more accurate picture of brain health. The tool closely correlates faster brain aging with increased cognitive decline and dementia risk, offering potential for early biomarkers and personalized treatment.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateFeb 24, 2025

Gene expression profiles in respiratory settings in rats under extracorporeal membrane oxygenation

Researchers analyzed gene expression profiles in rats undergoing extracorporeal membrane oxygenation, finding reduced inflammation and increased immune suppression with spontaneous breathing. The study suggests weaning off ventilator support during VV-ECMO may be beneficial for clinical practice.

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

Brewing tea removes lead from water

Researchers found that brewing tea can adsorb significant amounts of toxic heavy metals like lead and cadmium from drinking water. The study revealed that steeping time played the most significant role in removing metal ions, with longer steeping times resulting in more effective filtering.

SourceNorthwestern University·JournalACS Food Science & Technology·TypeExperimental study·DateFeb 24, 2025

Burnout from financial stress may lower job satisfaction

A recent study by the University of Georgia found that financial stress can contribute to burnout and reduce job satisfaction. The researchers surveyed over 200 employees and discovered that current worries about money management increased levels of burnout, while expected future financial security improved views on one's job.

SourceUniversity of Georgia·JournalJournal of Workplace Behavioral Health·DateFeb 24, 2025

Technological advances in single-use or disposable bronchoscopy: an evaluation of the Innovative Ambu® aScope™ 5 in a quaternary referral bronchoscopy unit

The study confirms the innovative Ambu aScope 5 Broncho is a rotatable scope compatible with electrocautery, ensuring safe procedures without complications or need for reusable scopes. Single-use flexible bronchoscopes have shown comparable performance to reusable ones in terms of functioning, cost, and environmental impact.

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

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