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Science News Archive May 2025 - Page 35


Page 35 of 50

Poor heart health increases risk of dementia for Black Americans

A new University of Georgia study found that Black Americans with high blood pressure and diabetes in midlife had significantly higher levels of a dementia-related biomarker over an 11-year period. Early intervention for these chronic health conditions could protect brain health and reduce neurodegenerative diseases later in life.

SourceUniversity of Georgia·JournalJournal of Racial and Ethnic Health Disparities·DateMay 12, 2025

Comparative analysis of perioperative renal function in patients undergoing heart transplantation and left ventricular assist device implantation: a multicenter retrospective study

A multicenter retrospective study compared perioperative renal function in heart transplantation and LVAD implantation patients with pre-existing renal dysfunction, finding improved outcomes for those receiving the new device. The results suggest that LVAD implantation is a better choice for these patients.

SourceNational Center for Respiratory Medicine·JournalJournal of Thoracic Disease·TypeObservational study·DateMay 12, 2025

How roots forage for water

A new study reveals that plants prioritize water over gravity during drought conditions, suppressing gravitropism to become more hydrotropic. MIZ1 protein helps attenuate root gravitropism, enabling plants to search for water effectively.

SourceInstitute of Science and Technology Austria·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMay 12, 2025

Enhanced activity in the upper atmosphere of Sporadic E layers during the 2024 Mother’s Day super geomagnetic storm

A new study reveals that sporadic E layers were significantly enhanced during the recovery phase of the 2024 Mother's Day super geomagnetic storm. The phenomenon, which appears as thin and dense patches of ionized metals, was detected mainly over Southeast Asia, Australia, the South Pacific, and the East Pacific.

SourceKyushu University·JournalGeophysical Research Letters·TypeData/statistical analysis·DateMay 12, 2025

Rosiglitazone prevents the development of kindling by modulating inflammatory cytokine production and brain cell apoptosis in mice

This study investigates the anti-inflammatory and neuroprotective properties of rosiglitazone in preventing pentylenetetrazole-induced kindling in mice. Rosiglitazone delays seizure progression, reduces pro-inflammatory cytokine levels, and increases IL-10, indicating its potential as a therapeutic strategy for epilepsy management.

SourceXia & He Publishing Inc.·JournalJournal of Exploratory Research in Pharmacology·DateMay 12, 2025

Let-7 is a key guardian of healthy lungs that keeps pulmonary fibrosis in check

A study published in Nature Communications reveals that Let-7 is a critical gene involved in lung repair and prevention of pulmonary fibrosis. The researchers found that when Let-7 is absent, injured lungs develop scarring and inflammation, highlighting the importance of this gene in maintaining healthy lung function.

SourceBaylor College of Medicine·JournalNature Communications·TypeExperimental study·DateMay 12, 2025

Change your location to jumpstart creativity, study finds

A study of Nobel laureates found that frequent moves and working in multiple locations can significantly reduce the time before starting Nobel-prize winning work. The researchers estimated that moving every two years can decrease the time by two years, while being in multiple locations reduces it by 2.6 years.

SourceOhio State University·JournalInternational Economic Review·TypeData/statistical analysis·DateMay 12, 2025

Head-to-head trial compares weight loss drugs

A 72-week clinical trial found tirzepatide to be more effective than semaglutide in reducing body weight and waist circumference. The study demonstrated that tirzepatide's dual mechanism of action, mimicking both GLP-1 and GIP hormones, is key to its superior performance.

SourceWeill Cornell Medicine·JournalNew England Journal of Medicine·DateMay 12, 2025

From prehistoric resident to runaway pet: First tegu fossil found in the U.S.

A team of scientists has discovered a prehistoric tegu fossil in the US, revealing that these charismatic lizards were once native to North America. The fossil, dated to the Middle Miocene Climatic Optimum, is believed to have been present in present-day Georgia during a warm period, before global temperatures cooled and they disappeared.

SourceFlorida Museum of Natural History·JournalJournal of Paleontology·DateMay 12, 2025

Towards targeted catalyst optimization: Identifying rate-limiting steps in photocatalysis

Researchers introduce Onset Intensity for Temperature Dependence (OITD) to identify rate-limiting steps in photocatalytic reactions. The study reveals distinct rate-limiting behaviors for different materials, highlighting the importance of surface accessibility in optimizing photocatalytic material design.

SourceJapan Advanced Institute of Science and Technology·JournalJournal of Materials Chemistry A·DateMay 12, 2025

USC Dornsife researchers develop tool to break brain circuits with molecular precision

Researchers at USC Dornsife College of Letters, Arts and Sciences have developed a powerful new method for selectively and reversibly breaking connections between brain cells, targeting specific synapses without harming neurons. The technique, inspired by the brain's own system for recycling proteins, allows for the elimination of eith...

SourceUniversity of Southern California·JournaleLife·TypeExperimental study·DateMay 12, 2025

Clear waters, hidden toxins

Viruses that infect and kill toxic algal blooms can cause the release of high levels of toxin microcystin-LR into water, posing a significant risk to human health and ecosystems. The finding highlights the need for better understanding of these interactions to inform forecasting and mitigation strategies for harmful algal blooms.

SourceUniversity of Waterloo·JournalMicroorganisms·TypeExperimental study·DateMay 12, 2025

Why so many microbes fail to grow in the lab

A new study from researchers at the Helmholtz Institute for Functional Marine Biodiversity offers fresh insights into why many microorganisms fail to grow in the lab. The study suggests that the survival of microbes depends on a hidden web of relationships between species, which can collapse with small structural changes.

SourceUniversity of Oldenburg·JournalProceedings of the National Academy of Sciences·DateMay 12, 2025

Universe decays faster than thought, but still takes a long time

The researchers calculated that the universe will decay via Hawking-like radiation in approximately 10^78 years. This time frame applies to white dwarf stars and neutron stellar black holes, both of which take the same amount of time to evaporate. The findings contradict previous estimates and shed new light on the theory of relativity.

SourceRadboud University Nijmegen·JournalJournal of Cosmology and Astroparticle Physics·DateMay 12, 2025

First head-to-head study in people living with obesity shows tirzepatide results in around 50% more weight loss than semaglutide

A new head-to-head study has shown that tirzepatide results in around 50% more weight loss than semaglutide in adults with obesity. The study found that tirzepatide led to an average weight loss of 20.2%, significantly higher than the 13.7% achieved with semaglutide.

SourceEuropean Association for the Study of Obesity·JournalNew England Journal of Medicine·DateMay 12, 2025

Semaglutide may provide early protection against heart disease in high-risk patients—even before clinically meaningful weight loss and prior to the full target dose

A new analysis of the SELECT trial shows semaglutide reduces major cardiovascular events by 40% within 3-6 months, even before significant weight loss and full target dose. The study found that semaglutide's effects on reducing inflammation, blood sugar, and blood pressure may contribute to its early clinical benefits.

Accelerating bacterial evolution in the laboratory

Researchers at the University of Tokyo accelerated bacterial evolution by activating 'jumping genes', resulting in rapid genome changes. The study sheds light on the role of insertion sequences and composite transposons in evolution, offering a new reference for future laboratory experiments.

SourceUniversity of Tokyo·JournalNucleic Acids Research·TypeExperimental study·DateMay 12, 2025

Dongguk University scientists uncover novel battery design for industrial energy storage

Researchers at Dongguk University have created a graphene coating that supercharges zinc-ion batteries for grid use, overcoming safety issues and enabling high-performance industrial energy storage. The new technology supports roll-to-roll manufacturing, bringing affordable energy storage closer to commercialization.

SourceDongguk University Evaluation and Audit Team·JournalAdvanced Energy Materials·TypeExperimental study·DateMay 12, 2025

Monolithically integrated asynchronous optical recurrent accelerator

Researchers have developed a monolithically integrated asynchronous optical recurrent accelerator, mapping time sequences to wavelength channels for efficient parallel processing. This breakthrough improves computational efficiency without requiring high-speed electronic components for synchronization.

New agents with genome mining and mutagenesis

Scientists have identified previously unknown enzymes that initiate the formation of nitrogen-nitrogen bonds, enabling the synthesis of complex heterocycles. The discovery holds promise for developing new pharmaceutical agents with targeted environmental benefits.

SourceRuhr-University Bochum·JournalACS Catalysis·TypeExperimental study·DateMay 12, 2025

Comparison of patient-reported outcomes after uniportal versus multiportal video-assisted thoracoscopic sub-lobar resection

The study found that the uniportal approach reduced postoperative symptom burden and produced better clinical outcomes in patients undergoing sub-lobar resection. Uniportal lobectomy was previously known to have a lower symptom burden compared to multiportal lobectomy.

SourceNational Center for Respiratory Medicine·JournalJournal of Thoracic Disease·TypeObservational study·DateMay 12, 2025

Despite higher sensitivity, multitarget stool DNA tests not as cost-effective for early detection of CRC compared with FIT

Research finds that multitarget stool DNA tests have higher sensitivity than FIT, but are not as cost-effective for early detection of colorectal cancer. Costs per detected advanced neoplasia case or early-detected CRC case are 7- to 9-fold higher for MSDT-based and N-G MSDT-based screening.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateMay 12, 2025

Like humans, ChatGPT favours examples and ‘memories’ – not rules – to generate language

A study found that large language models generalize language patterns in a surprisingly human-like way through analogy, relying on stored examples and drawing analogies when dealing with unfamiliar words. The models behave as if they have formed a memory trace from every individual example of every word encountered during training.

SourceUniversity of Oxford·JournalProceedings of the National Academy of Sciences·DateMay 12, 2025