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Science News for April 3, 2025


Decoding how cells communicate by high-speed imaging of molecular couriers

A new approach using high-speed atomic force microscopy reveals distinct sEV subpopulations with specific exosome markers, enabling precise characterization and potential applications in disease diagnostics. This method has the potential to revolutionize early disease detection and targeted drug delivery.

SourceNano Life Science Institute (NanoLSI), Kanazawa University·JournalJournal of Extracellular Vesicles·DateApr 3, 2025

Century-old clues reveal hidden threat to Australian songbird

A study led by Australian National University researchers has found that the critically endangered regent honeyeater's population decline has not been mirrored by genetic diversity loss. Despite a 99% population decrease, the species has lost only 9% of its genetic diversity due to a time-lag in genetic erosion.

SourceAustralian National University·JournalProceedings of the Royal Society B Biological Sciences·TypeObservational study·DateApr 3, 2025

Pennington Biomedical’s Dr. Leanne Redman honored with the E. V. McCollum Award from the American Society for Nutrition

Dr. Leanne Redman, a leading authority on body weight regulation, has received the prestigious E.V. McCollum Award for her translational research on maternal nutrition and energy regulation, with significant impact on public health. The award recognizes her dedication to advancing research that improves women's and families' health.

New study finds that over 95% of sponsored influencer posts on Twitter were not disclosed

A recent study published in Marketing Science found that 95% of influencer posts on Twitter were not disclosed, with undisclosed posts often associated with young brands and large social media followings. The study highlights a potential need for further regulatory scrutiny to ensure transparency in influencer marketing.

SourceInstitute for Operations Research and the Management Sciences·JournalMarketing Science·TypeObservational study·DateApr 3, 2025

Picky eaters by day, buffet by night: Butterfly, moth diets sync to plant aromas

A new study finds that the daily cycles of plant aromas shape the dietary habits and evolution of butterflies and moths. Research suggests that day-active insects have evolved to be picky eaters with larger antennae, while night-active species have more generalized diets due to reduced chemical information.

SourcePenn State·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateApr 3, 2025

Tired jackdaws sleep more deeply

A study of European jackdaws reveals that sleep-deprived birds prioritize deep sleep over vigilant wakefulness. The findings suggest that even flexible sleep strategies have limits, highlighting the importance of understanding animal sleep patterns to better comprehend human sleep loss.

SourceMax-Planck-Gesellschaft·JournalCurrent Biology·DateApr 3, 2025

The 43rd Barcelona BioMed Conference explores the potential of Artificial Intelligence to transform biomedical research

The conference gathered international researchers to discuss AI's role in drug discovery and development, including generative AI strategies for designing chemical compounds. The speakers emphasized the significance of personalized medicine, where therapies will be tailored to each patient's unique molecular profile.

Mass General Brigham researchers reveal 17 modifiable risk factors shared by stroke, dementia, and late-life depression

Mass General Brigham researchers have identified 17 modifiable risk factors shared by stroke, dementia, and late-life depression. Modifying any one of these risk factors can reduce the risk of all three conditions, providing an opportunity to simultaneously reduce the burden of age-related brain diseases.

SourceMass General Brigham·JournalJournal of Neurology Neurosurgery & Psychiatry·TypeLiterature review·DateApr 3, 2025

Thirst and hunger neurons

New research identifies specific populations of neurons in the amygdala that play a key role in regulating nutritional needs and turning them into action. The study reveals distinct groups of neurons responding to thirst and hunger, guided by molecular cues.

SourceMax-Planck-Gesellschaft·JournalNature Communications·DateApr 3, 2025

Newfound role for cancer gene could improve key drug class

A new study led by NYU Langone Health scientists sheds light on how the major cancer gene BRCA2 determines which cancer cells can be killed by a class of precision cancer drugs called PARP inhibitors. Intact BRCA2 functions as a molecular shield, preventing PARP1 from disrupting DNA repair complexes, and its activity dictates PARP inhi...

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNature·TypeExperimental study·DateApr 3, 2025

Researchers uncover role of fungal circadian clock in pathogenicity

A team of scientists has discovered that the circadian clock plays a crucial role in regulating F. oxysporum's response to zinc starvation and controlling secondary metabolism, enhancing its virulence. The study provides new insight into host-pathogen interactions and could lead to innovative approaches for crop protection.

SourceChinese Academy of Sciences Headquarters·JournalScience Advances·TypeExperimental study·DateApr 3, 2025

Climate change and prehistoric human populations: Eastward shift of settlement areas at the end of the last ice age

A new study reveals significant shifts in prehistoric hunter-gatherer populations in Europe due to climate changes at the end of the last Ice Age. The population declined by half, but some areas in central Europe showed stability or even an increase in population size, indicating human migration towards the east.

SourceUniversity of Cologne·JournalPLOS One·TypeData/statistical analysis·DateApr 3, 2025

Face processing abnormalities identified in autism dog model

A new study has revealed that Beagle dogs carrying mutations in the Shank3 gene exhibit face processing abnormalities, similar to those observed in human ASD patients. The research provides direct experimental evidence that mutations in Shank3 lead to ASD-like deficits in face processing, contributing to social impairments.

SourceChinese Academy of Sciences Headquarters·JournalScience Advances·TypeExperimental study·DateApr 3, 2025

Infrared heavy-metal-free quantum dots deliver sensitive and fast sensors for eye-safe LIDAR applications

Scientists have created a new method to create silver telluride colloidal quantum dots that overcome challenges of high dark current, limited linear dynamic range, and response speed. The team developed the first proof-of-concept SWIR LIDAR using these non-toxic materials, measuring distances over 10 meters with decimetre resolution.

SourceICFO-The Institute of Photonic Sciences·JournalAdvanced Materials·DateApr 3, 2025

MIT engineers develop a way to mass manufacture nanoparticles that deliver cancer drugs directly to tumors

Researchers at MIT have developed a method to mass manufacture nanoparticles that target cancer cells, eliminating the need for manual polymer mixing and streamlining production. This approach integrates good manufacturing practice (GMP)-compliant processes, making it suitable for large-scale production of cancer treatments.

SourceMassachusetts Institute of Technology·JournalAdvanced Functional Materials·DateApr 3, 2025

Surrey’s carbon capture technology could help the UK rival global competitors in race to produce clean fuel from air

Researchers at the University of Surrey developed a cost-effective method for removing CO2 from the air and converting it into synthetic fuel. The Dual-Function Material (DFM) process has been shown to be financially competitive with established industry methods, offering a promising route to decarbonize industries.

SourceUniversity of Surrey·JournalApplied Energy·DateApr 3, 2025

Dimethoxymethane carbonylation and disproportionation over extra‐large pore zeolite ZEO‐1: Reaction network and mechanism

Researchers have developed a novel catalyst, ZEO-1, which exhibits high selectivity and stability in carbonylation and disproportionation reactions. The study reveals that ZEO-1's large cages promote DMM carbonylation and those in small cages favor DMM disproportionation.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalChinese Journal of Catalysis·DateApr 3, 2025

Common phrases, not fancy words, make you sound more fluent in a foreign language

Researchers from Waseda University discovered that common phrasal expressions have a significant impact on how fluent speakers sound, even when controlling for smoothness and other acoustic features. This study suggests that language learners should focus on mastering everyday phrases rather than rare vocabulary to improve their fluency.

SourceWaseda University·JournalStudies in Second Language Acquisition·TypeExperimental study·DateApr 3, 2025

Coseismic surface ruptures of 2023 Türkiye earthquake doublet, and seismic hazard assessment of the East Anatolian Fault Zone

This study used high-resolution satellite data to rapidly assess coseismic surface ruptures caused by the 2023 Türkiye earthquake doublet. The research found separate rupture zones for each earthquake and highlighted seismic hazard risks for specific fault segments, including the Malatya Fault and East Anatolian Fault Zone.

SourceScience China Press·JournalScience China Earth Sciences·TypeCase study·DateApr 3, 2025

circTP63-N suppresses the proliferation and metastasis of nasopharyngeal carcinoma via engaging with HSP90AB1 to modulate the YAP1/Hippo signaling pathway

A novel circular RNA, circTP63-N, generated by back-splicing exons 2–4 of the TP63 gene is significantly downregulated in nasopharyngeal carcinoma (NPC) tissues. Restoring its expression effectively inhibits NPC cell proliferation and metastasis via engagement with HSP90AB1 to modulate the YAP1/Hippo signaling pathway.

SourceScience China Press·JournalScience China Life Sciences·DateApr 3, 2025

Migrating roach have sharper eyesight

A study from Lund University found that migrating freshwater roach have larger pupils and better eyesight than non-migrating individuals. This adaptation enables them to detect small food sources in low-light conditions, crucial for survival during migration.

SourceLund University·JournalJournal of Animal Ecology·DateApr 3, 2025

USC Norris Comprehensive Cancer Center opens state-of-the-art Newport Beach Radiation Oncology and Imaging Center

The new Keck Medicine of USC – Newport Beach Radiation Oncology and Imaging Center offers biology-guided radiation therapy, using up-to-the-minute signals to track and treat cancer cells in real time. The center is equipped with state-of-the-art technology and will be the first in Orange County to provide this treatment option.

Researchers find intestinal immune cell prevents food allergies

A recent study published in Cell revealed that a specific intestinal immune cell prevents food allergies by breaking the threshold between friend and foe in the gut. Researchers at WashU Medicine identified this cell as RORγt+ dendritic cells, which maintain tolerance to harmless food allergens, preventing allergic reactions.

SourceWashU Medicine·JournalCell·TypeExperimental study·DateApr 3, 2025

Novel miniaturized anti-Spring MEMS Accelerometer with Enhanced Performance

Researchers developed a novel miniaturized anti-spring MEMS accelerometer that enhances performance while maintaining compact chip size. The innovation centers around a novel anti-spring mechanism featuring pre-shaped curved beams, which enables stiffness softening without requiring large bias forces or displacements.

Researchers from MARE ULisboa discover that the European catfish, an invasive species in Portugal, has a prolonged breeding season, enhancing its invasive potential

The European Catfish has a prolonged breeding season of almost five months, allowing its offspring to survive extreme events and compete for food resources effectively. This finding is crucial for controlling the species' population, as removing larger individuals can help reduce fecundity.

SourceFaculty of Sciences of the University of Lisbon·JournalJournal of Vertebrate Biology·TypeExperimental study·DateApr 3, 2025

Healthy nutrition and physical lifestyle choices lower cancer mortality risk for survivors, new ACS study finds

A new American Cancer Society study reveals that adopting healthy lifestyles, as recommended by the organization's guidelines, can significantly lower cancer mortality risk among survivors. Researchers found that those who maintained a healthy lifestyle before and after diagnosis had a lower mortality risk compared to those with poor a...

SourceAmerican Cancer Society·JournalJNCI Journal of the National Cancer Institute·DateApr 3, 2025

New vaccine concept tackles harmful bacteria in the intestine

Researchers have developed an effective approach to tackle intestinal pathogens by administering oral vaccinations combined with harmless bacteria that starve out pathogenic microbes. This method has shown promising results in preventing colonization with salmonella and effectively tackling established E. coli bacteria.

SourceETH Zurich·JournalScience·TypeExperimental study·DateApr 3, 2025

How GPS helps older drivers stay on the roads

A new study published in PLOS Digital Health found that older drivers with GPS navigation systems tend to drive more frequently, suggesting these tools help maintain driving mobility. The research reveals that using GPS can alleviate spatial orientation difficulties and support older adults' independence on the roads.

SourceUniversity of East Anglia·JournalPLOS Digital Health·TypeObservational study·DateApr 3, 2025

Reprogramming gut cells to treat small bowel syndrome

Researchers have successfully reprogrammed part of the large intestine to function like the nutrient-absorbing small intestine, reversing malnutrition in a preclinical study. The technique, which deletes the colon gene SATB2, restored nutrient absorption and improved survival rates in mice with short bowel syndrome.

SourceWeill Cornell Medicine·JournalGastroenterology·DateApr 3, 2025

New research suggests White Americans in areas with higher Black poverty are more likely to blame racial inequality on lack of effort

New research suggests that White Americans living in counties with higher Black poverty rates are more likely to believe racial equality exists and attribute Black poverty to a lack of effort. This paradoxical belief has significant consequences, predicting reduced support for policies addressing racial disparities.

SourceSociety for Personality and Social Psychology·JournalSocial Psychological and Personality Science·TypeExperimental study·DateApr 3, 2025

Pharmacies often won’t sell syringes without a prescription, exacerbating bloodborne disease transmission

A recent study found that over two-fifths of Oregon community pharmacies require a prescription to purchase syringes, creating an access barrier for people with diabetes and others who need them. The unwillingness to sell was most pronounced in urban areas, highlighting the need for improved public health strategies.

SourceOregon State University·JournalHarm Reduction Journal·TypeSurvey·DateApr 3, 2025

Antibiotic resistance among key bacterial species plateaus over time

A study analyzing over 3 million bacterial samples found that antibiotic resistance initially rises but stabilizes over time, reaching an equilibrium in most species. The study suggests that continued increase in antibiotic resistance is not inevitable and provides new insights to monitor drug resistance.

SourcePLOS·JournalPLOS Pathogens·TypeExperimental study·DateApr 3, 2025

A probiotic bacterial strain proven more effective for treating a common intestinal infection

Researchers have discovered a new probiotic bacterial strain that is 15% more effective in treating giardiasis than the existing strain. The strain, Lactobacillus johnsonii CNCM I-4884, has significant anti-Giardia activity and can transform conjugated bile salts into toxic compounds for the parasite.

SNU researchers develop portable artificial kidney, paving the way for innovation in kidney failure treatment

Researchers at Seoul National University have developed a compact peritoneal dialysis device that can be used as a wearable artificial kidney, offering an alternative to traditional hemodialysis. The device uses nanoelectrokinetic technology to continuously regenerate peritoneal dialysate and remove waste products from the body.

SourceSeoul National University College of Engineering·JournalJournal of Nanobiotechnology·TypeExperimental study·DateApr 3, 2025

Resident physician intentions regarding unionization

A survey study found that most resident physicians are either in a union or support unionization due to pay and financial security concerns. The study suggests that future research should investigate other factors and the effectiveness of unionization in achieving its goals.

SourceJAMA Network·JournalJAMA Network Open·DateApr 3, 2025

Powerful new software platform could reshape biomedical research by making data analysis more accessible

The Playbook Workflow Builder simplifies data analysis and streamlines collaboration for biomedical researchers. Researchers can design custom workflows using pre-built analytical components, removing a major barrier to data-driven discovery.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateApr 3, 2025

Achromatic metasurface waveguide: Pioneering a new era in AR displays

Researchers developed an innovative solution combining inverse-designed metasurface couplers and high-refractive-index waveguides to eliminate chromatic dispersion in AR displays. The single-layer design simplifies manufacturing while enhancing system performance, positioning it as a promising technology for next-generation AR devices.

A single dry winter decimated California’s salmon and trout populations

A single dry winter decimated California’s salmon and trout populations, with coho salmon disappearing entirely from three coastal watersheds. Chinook salmon were able to cope by shifting their breeding activities downstream, but steelhead trout were eliminated from numerous individual tributaries.

SourceUniversity of California - Berkeley·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateApr 3, 2025

Ultrathin interlayer empowers green ZnSeTe QD-LEDs: brighter, more efficient, driving eco-friendly displays forward

Researchers developed bright and efficient green-emitting ZnSeTe-based QD-LEDs by introducing an ultrathin ZnSeS alloy interlayer, enhancing radiative recombination efficiency and optical stability. The devices showed a peak external quantum efficiency of 20.6% and luminance exceeding 100,000 cd m−2.

SourceScience China Press·JournalScience Bulletin·TypeExperimental study·DateApr 3, 2025

Wind energy and marine wildlife in conflict: researchers warn of the overlap between offshore wind farms and areas of high biodiversity

A study reveals widespread overlap between feeding grounds for seabirds, marine mammals, and regions with high wind potential. Researchers propose developing risk maps to predict conflicts and recommend expanding marine protected areas and strengthening spatial planning tools.

SourceUniversidad Miguel Hernandez de Elche·JournalJournal of Environmental Management·TypeData/statistical analysis·DateApr 3, 2025

Surgery doesn’t always help with chronic rhinosinusitis – a new risk score predicts treatment efficacy

A new CT-scan based risk score facilitates early prediction of disease progression and planning of further treatment for patients with chronic rhinosinusitis. The study found that a combination of radiological scores, asthma, and NSAID-exacerbated respiratory disease can predict relapsing chronic rhinosinusitis.

SourceUniversity of Eastern Finland·JournalClinical and Translational Allergy·TypeObservational study·DateApr 3, 2025

Some gut bacteria could make certain drugs less effective

A new study reveals that specific gut bacteria can break down certain drugs, altering their efficacy. The research found that 30 out of 127 tested drugs were heavily metabolized by human gut microbiota, potentially reducing their effectiveness. The study's findings could have significant implications for personalized medicine and drug ...

SourceUniversity of Pittsburgh·JournalNature Chemistry·DateApr 3, 2025

How researchers are shining a light on kidney disease

Researchers at Rutgers University have discovered a way to identify and track material carried by extracellular vesicles, which play a key role in the development of renal diseases like polycystic kidney disease. This breakthrough could lead to new therapies for patients with PKD, a common genetic disorder.

SourceRutgers University·JournalNature Communications·DateApr 3, 2025

Printed skin to replace animal testing

Researchers from TU Graz and Vellore Institute of Technology have developed a 3D-printed skin imitation with living cells to test nanoparticles from cosmetics. The skin imitation mimics human skin's three-layer tissue structure and biomechanics, made possible by hydrogel formulations printed together with living cells.

SourceGraz University of Technology·JournalSTAR Protocols·TypeExperimental study·DateApr 3, 2025

Corpse flowers are threatened by spotty recordkeeping

A study by Northwestern University scientists found that incomplete historical records have led to low genetic diversity and population decline among corpse flowers. The lack of standardized data makes it challenging for conservationists to make informed decisions about breeding, resulting in a high percentage of cloned plants.

SourceNorthwestern University·JournalAnnals of Botany·DateApr 3, 2025

Riding the AI wave toward rapid, precise ocean simulations

Researchers developed a machine learning-powered fluid simulation model that significantly reduces computation time without compromising accuracy. The new surrogate model maintains the same level of accuracy as traditional particle-based simulations while reducing computation time from approximately 45 minutes to just three minutes.

SourceOsaka Metropolitan University·JournalApplied Ocean Research·TypeComputational simulation/modeling·DateApr 3, 2025