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Science News for April 7, 2026


The wearable ring on your finger could help assess your cardiovascular health while you sleep

Researchers developed a method to estimate vascular age from consumer wearables' PPG signals, predicting accurate results with a mean error of six to seven years. The technique uses a deep learning model and may lead to earlier detection of cardiovascular risk and more effective preventive care.

Japan delivers its sharpest X-ray telescope for the FOXSI mission, a US-Japan rocket program to observe the sun

Scientists in Japan developed a high-resolution X-ray telescope using precision mirror-making technology, capable of distinguishing objects 3.5 mm wide from 1 km away. The telescope was tested on the ground using a unique evaluation system before launch on the FOXSI sounding rocket mission.

SourceNagoya University·JournalPublications of the Astronomical Society of the Pacific·TypeExperimental study·DateApr 7, 2026

Researchers increase understanding of brain’s default mode network

A research team identified distinct subregions within the default mode network (DMN) that act as senders and receivers of information, enabling flexible shifts between perception and memory-driven thought. The study reveals that the DMN is not functionally uniform but composed of subregions with distinct connectivity biases.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 7, 2026

Learning CBT form the inside out: Self-practice training program shows promise for future therapists

A new eight-week self-reflection program helps trainees deepen their understanding of cognitive behavioral therapy (CBT) and develop reflective skills. The study found that the program improved satisfaction, self-awareness, and reflective practice among participants, suggesting its potential to support CBT education.

SourceThe University of Osaka·TypeRandomized controlled/clinical trial·DateApr 7, 2026

Research questions legitimacy of promoting harmful products

Researchers argue that industries promoting harmful products normalize their consumption through marketing strategies, affecting vulnerable populations. They call for greater regulatory oversight and a renewed emphasis on ethics in marketing education to address the systemic role of marketing in public health and social well-being.

SourceUniversity of Otago·JournalJournal of Macromarketing·TypeLiterature review·DateApr 7, 2026

Precise construction of chiral cyclic imine esters by transient binary copper co-catalysis

Researchers developed a highly efficient dual-copper catalyzed asymmetric tandem reaction for synthesizing chiral N-unprotected cyclic imine esters, achieving excellent stereoselectivity and high substrate universality. The method demonstrates potential in medicinal chemistry and has shown significant antiviral activity.

SourceChinese Chemical Society·JournalCCS Chemistry·TypeExperimental study·DateApr 7, 2026

Unlocking how dogs’ fungal ear infections evade treatment points vets to drug stewardship

Researchers discovered that mutations in a key protein make yeast found in dogs with common outer ear infections more resistant to topical antifungals. The team recommends using shorter-tailed azoles as initial therapy for dogs with yeast ear infections, reserving longer-tailed azoles for recurrent or non-responsive cases.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalVeterinary Dermatology·TypeObservational study·DateApr 7, 2026

RNA barcodes enable high-speed mapping of connections in the brain

By tagging neurons with molecular “barcodes,” researchers created a platform that maps connections among thousands of neurons in the mouse brain with unprecedented speed and resolution. This approach enables simultaneous mapping of neural connections with single-synapse resolution, revealing previously unknown connectivity patterns.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature Methods·TypeExperimental study·DateApr 7, 2026

Researchers make big step toward safe, reversible male contraception

Researchers at Cornell University have made a breakthrough in developing a safe and reversible male contraceptive. By targeting meiosis with the small molecule inhibitor JQ1, they successfully stopped sperm production without affecting fertility or offspring health. The study shows promise for a non-hormonal, long-acting, and 100% effe...

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateApr 7, 2026

New biochar composite tackles arsenic pollution and methane emissions in rice paddies

A new study reports a promising solution to address both arsenic contamination and greenhouse gas emissions in rice paddies using an engineered biochar material enhanced with titanium dioxide. The findings highlight a new strategy to improve food safety while lowering agriculture’s climate footprint.

SourceBiochar Editorial Office, Shenyang Agricultural University·JournalBiochar·TypeExperimental study·DateApr 7, 2026

Study maps regions with the greatest potential for green hydrogen production and use in Brazil

A study analyzing municipal data identifies seven high-potential production clusters and ten consumption clusters in Brazil, highlighting the need for infrastructure investments to connect energy and industrial hubs. The research reveals a spatial disparity between production and consumption sites, posing a challenge for developing the...

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalInternational Journal of Hydrogen Energy·DateApr 7, 2026

Engineering the future using nature’s design

The Texas A&M biomedical engineering department's scaffolded, inquiry-based biomimicry course has been shown to improve student engagement and imagination competency. Students learn to use nature as a model to solve engineering problems, resulting in breakthroughs in clinical impact and innovation.

SourceTexas A&M University·JournalBiomedical Engineering Education·DateApr 7, 2026

First-of-its-kind study shows AI risk prediction tools in psychiatry can reinforce systemic bias

A new study from CAMH reveals that AI models used to predict aggressive incidents in psychiatric care can amplify existing social and structural inequities. The model showed higher false positive rates for Black and Middle Eastern individuals, men, and those with unstable housing, potentially leading to more distress and loss of trust.

SourceCentre for Addiction and Mental Health·Journalnpj Mental Health Research·TypeData/statistical analysis·DateApr 7, 2026

New framework for tracing plant water use could improve drought resilience prediction

A new framework proposes dividing soil water into three pools and plant water into two, resolving hydrogen isotope offsets and improving drought predictions. This discovery offers a path toward more precise measurements, enabling sharper predictions of agricultural security and water availability in a warming climate.

SourceIndiana University·JournalCommunications Earth & Environment·TypeData/statistical analysis·DateApr 7, 2026

EuroPCR 2026 - The world-leading course in interventional cardiovascular medicine: Forming generations of the interventional community through excellence in education and innovation

EuroPCR 2026 will feature 4 days of quality content, case-based learning sessions, and interactive formats. The course is designed for all levels of experience, covering topics in interventional cardiology, nursing, and research. EuroPCR aims to advance the quality of interventional practice and provide a transformative experience.

SourcePCR·DateApr 7, 2026

Your neighborhood may be aging you

Researchers at NYU School of Global Public Health found that people living in neighborhoods with fewer social and economic opportunities have higher levels of CDKN2A RNA, a measure of cellular aging. This suggests that structural conditions may be biologically embedded and influence aging processes over time.

SourceNew York University·JournalSocial Science & Medicine·DateApr 7, 2026

Students prefer AI chatbots, until they know it is one

A study by University of Cincinnati nursing professor Joshua Lambert found that students prefer the responses of a custom AI chatbot, but only when blinded to its source. However, when students suspected the response came from the chatbot, they rated it lower in terms of helpfulness and satisfaction.

SourceUniversity of Cincinnati·JournalJournal of Nursing Education·TypeSurvey·DateApr 7, 2026

A roadmap for egocentric vision research

The survey maps egocentric vision's major tasks, including subject understanding, object understanding, environment understanding, and hybrid understanding. It identifies bottlenecks such as limited datasets and dynamic first-person video, and highlights the need for stronger data, clearer task definitions, and deeper integration.

SourceMaximum Academic Press·JournalMachine Intelligence Research·DateApr 7, 2026

Study identifies PHIP as a novel dependency in cancers driven by SWI/SNF mutations

Researchers from St. Jude Children's Research Hospital discovered the gene-regulatory protein PHIP as a critical vulnerability in cancers driven by broad SWI/SNF inactivation. PHIP's loss disrupts cancer growth and cooperates with SWI/SNF to activate transcription, providing evidence for therapeutic development of PHIP-inhibiting drugs.

SourceSt. Jude Children's Research Hospital·JournalNature Communications·TypeExperimental study·DateApr 7, 2026

Researchers study shifts in cancer mortality

Researchers studied cancer deaths in nearly 3,000 US counties from 1981-2019, finding urban and affluent counties experienced significant declines. However, rural areas often had lower rates of improvement, with some cities like New York City showing notable reductions in lung cancer mortality.

SourceMississippi State University·JournalBritish Journal of Cancer·TypeData/statistical analysis·DateApr 7, 2026

‘Reinforced concrete’ architecture enables strong composites with superior electromagnetic wave absorption

This study develops a novel reinforced concrete composite design with exceptional electromagnetic wave absorption and mechanical robustness. The composite demonstrates minimum reflection loss of −37.34 dB at 13.76 GHz, effective absorption bandwidth of 3.28 GHz, and near-perfect impedance matching.

SourceHEP Data Cooperation Journals·JournalActa Physico-Chimica Sinica·TypeExperimental study·DateApr 7, 2026

Research Spotlight: A new pulmonary embolism guideline, clinical advances and research updates, and a Mass General Brigham investigator’s insights

The new guidelines introduce five clinical categories to capture PE severity, emphasizing follow-up care and treatment considerations. Despite advances in diagnosis and treatment, PE remains a serious condition with substantial risk, highlighting the need for continued research and improvement.

SourceMass General Brigham·JournalJournal of the American College of Cardiology·DateApr 7, 2026

New study unveils rich biodiversity in Japan's deepest ocean trenches, featuring record-breaking discoveries and an unidentified "mystery" species

A new study published in Biodiversity Data Journal reveals a profound look at life up to nearly 10 kilometers below the ocean's surface in the Japan, Ryukyu, and Izu-Ogasawara trenches. The research catalogs at least 108 distinct organism groups, including a baffling unidentified animal that has left global taxonomic experts stumped.

SourcePensoft Publishers·JournalBiodiversity Data Journal·DateApr 7, 2026

New study reveals online PFAs information from public sources can fall short and leave public without enough guidance

A new study found that websites providing PFAS information, including government and news sources, often fail to provide actionable advice on reducing exposure. The researchers recommend clear language about known threats and improved depiction of audience susceptibility levels to effectively communicate with the public.

SourceSociety for Risk Analysis·JournalRisk Analysis·DateApr 7, 2026

Green recycling process for spent lithium-ion batteries with extremely low chemical consumption

A novel mechanical activation assisted strategy achieves selective extraction of Li+ from spent cathode materials with highly utilization efficiency of H+ (>97%), reducing secondary pollutant generation. The developed process obviates the need for auxiliary reagents and substantially reduces chemical consumption.

SourceKeAi Communications Co., Ltd.·JournalFundamental Research·TypeExperimental study·DateApr 7, 2026

Scientists uncover how childhood dementia begins in brain cells

Researchers have identified a fundamental mechanism underlying Sanfilippo syndrome, a common form of childhood dementia. Chronic overactivity in the brain appears to be a key contributor to cognitive deterioration in children with the condition. The study's findings represent significant progress and may lead to personalized treatment ...

SourceFlinders University·JournalNature Communications·TypeExperimental study·DateApr 7, 2026

Sleep patterns may reveal hidden heart risks

Research from Flinders University finds that people with sleep apnea who experience dramatic night-to-night breathing problems are 30% more likely to have a heart attack or stroke. The studies suggest that repeated changes in oxygen levels and sleep disruption can quietly stress the heart and blood vessels over time.

SourceFlinders University·Journalnpj Digital Medicine·TypeObservational study·DateApr 7, 2026

Acute Respiratory Distress Syndrome (ARDS) in critically ill patients with cirrhosis

A new study highlights an extremely high short-term mortality rate for mechanically ventilated patients with cirrhosis, which remains unchanged despite recent ICU improvements. The research identifies key prognostic factors and sheds light on the need for early multidisciplinary discussions about care goals.

SourceJournal of Intensive Medicine·JournalJournal of Intensive Medicine·TypeObservational study·DateApr 7, 2026

AI uncovers two decades of evolution in China’s hydrological research: a novel large language model approach

A team of researchers used AI to analyze 289,513 global publications and isolated 4,177 highly relevant studies on China's major basins. The study highlights crucial milestones in Chinese hydrology and aims to guide future research priorities and sustainable water resource strategies worldwide.

SourceKeAi Communications Co., Ltd.·JournalFundamental Research·TypeData/statistical analysis·DateApr 7, 2026

Distributed solar and carbon trading enable more affordable and equitable clean heating in rural Northern China

Researchers found that rural households in Northern China face significant challenges in affording clean heating as subsidies shrink. Distributed rooftop solar photovoltaics could help offset heating costs, with an estimated compensation of 32.2-64.5% in regions with strong solar potential.

SourceKeAi Communications Co., Ltd.·JournalFundamental Research·TypeData/statistical analysis·DateApr 7, 2026

Treating tumors independently of oxygen

A new active agent enables photodynamic therapy to target cancer cells without relying on oxygen levels. The agent's interaction with intracellular iron triggers a rapid electron transfer process, generating highly reactive hydroxyl radicals that kill cancer cells.

SourceRuhr-University Bochum·TypeExperimental study·DateApr 7, 2026

UT Health San Antonio researchers report breakthrough findings significantly reducing symptoms for combat PTSD victims

Researchers at UT Health San Antonio have made a significant breakthrough in treating combat post-traumatic stress disorder (PTSD) by adding navigated TMS to psychotherapy, showing an 85% reduction in symptoms. The study used a patented MRI-guided, robotic-controlled form of transcranial magnetic stimulation (TMS), known as navigated T...

SourceThe University of Texas at San Antonio Health Science Center·JournalJAMA Network Open·TypeRandomized controlled/clinical trial·DateApr 7, 2026

Beyond sunlight: A molecular “bridge” protects metals from rust, day and night

Researchers introduce a molecular bridge strategy to resolve the conflict between thermodynamic driving forces and charge kinetics in photocathodic protection. The 'hydrogen-bond-mediated molecular bridge' approach amplifies the driving force for electron injection while preserving efficient charge transfer.

SourceHEP Data Cooperation Journals·JournalAdvanced Powder Materials·TypeExperimental study·DateApr 7, 2026

TNF-α-primed MSC-derived extracellular vesicles mitigate inflammatory retinal injury

Researchers developed TNF-α-primed mesenchymal stem cell-derived extracellular vesicles, which showed anti-inflammatory effects in treating retinal degeneration. The vesicles were found to inhibit M1 macrophage polarization and reduce pro-inflammatory gene expression, preserving retinal function.

SourceHEP Data Cooperation Journals·JournalExtracellular Vesicles and Circulating Nucleic Acids·TypeExperimental study·DateApr 7, 2026

TIFR Hyderabad team identifies a key protein required for the function and survival of pheromone‑sensing neurons

Researchers at TIFR, Hyderabad identified a mammalian protein Cnpy1 essential for vomeronasal sensory neurons in mice. The study shows that Cnpy1 acts as a specialized endoplasmic-reticulum-associated factor required to maintain functional receptor complexes in these neurons.

SourceTata Institute of Fundamental Research·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 7, 2026

Many patients with firearm injuries are treated at hospitals with violence intervention programs, but few ultimately receive these services

Violence intervention programs are reaching at-risk trauma patients with firearm injuries, but only a small percentage of eligible patients participate. The study aims to improve access and integration of these programs to enhance recovery outcomes after injury.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·TypeData/statistical analysis·DateApr 7, 2026

Understanding metastasis mechanisms

A research team has identified signalling molecules called Netrins and the corresponding receptor Frazzled/Deleted in Colorectal Cancer that control when individual cells separate from the tumour and migrate. These mechanisms can enable cancer cells to colonize new tissue, a major factor in metastasis.

SourceHeinrich-Heine University Duesseldorf·JournalNature Communications·DateApr 7, 2026

Global EV transition hinges on policy adoption, cost reductions

A new study finds that aggressive policy action and cost reductions can accelerate the global shift to electric vehicles, reducing energy use and carbon emissions. The study suggests a uniform 20% reduction in non-energy costs could dramatically increase EV adoption rates, with market share rising from 25-50% to 70-85% globally by 2035.

SourceCornell University·JournalResources Environment and Sustainability·DateApr 7, 2026

Outdoor sunlight driven CO2 capture and cycloaddition from flowing simulated industrial flue gas using amino functionalized bismuth catalysts

A novel photocatalytic system captures and converts low-concentration CO2 from industrial flue gas into high-value chemicals using amino-functionalized bismuth catalysts. The catalyst achieves high CO2 capture rates under natural sunlight, demonstrating promising industrial application potential.

SourceHEP Data Cooperation Journals·JournalAdvanced Powder Materials·TypeExperimental study·DateApr 7, 2026

Single-atom modified SnS2/CdS S-scheme photocatalyst for synergistic hydrogen production and lactic acid oxidation

The introduction of transition metal single atoms improves carrier separation and surface reaction kinetics, leading to enhanced photocatalytic performance. Strategically arranging metal single atoms on different components of an S-scheme heterojunction can synergistically enhance both reduction and oxidation half-reactions.

SourceHEP Data Cooperation Journals·JournalActa Physico-Chimica Sinica·TypeExperimental study·DateApr 7, 2026

JMIR Publications examines AI-driven discovery bottleneck: scientific evidence trapped in a predigital system

The article highlights the urgent need to modernize scientific record with AI-powered discoveries trapped in a predigital system. Top-tier research universities face $10-15 million annual subscription expenditures, while author-facing processing charges range from $5,000 to over $11,000 per article.

SourceJMIR Publications·JournalJournal of Medical Internet Research·TypeCommentary/editorial·DateApr 7, 2026

Scientists unveil molecular map that could unlock new treatments for heart and lung diseases

Researchers have created a detailed molecular map of the thromboxane A2 receptor, which could lead to the development of safer and more effective therapies targeting this clinically important signalling system. The study reveals an unusual activation switch and provides insights into how signalling molecules interact with the receptor.

SourceTrinity College Dublin·JournalNature Communications·DateApr 7, 2026

Novel patterned electrode ingeniously designs micro-pillar "overpass," enabling low-Platinum fuel cells to "go full throttle".

Researchers developed micro-pillar patterned electrodes with ordered ionomer structures to improve proton conduction and oxygen delivery, enhancing fuel cell performance. The design enabled robust operation under dry conditions and maintained electrochemical surface area, outperforming conventional electrodes.

SourceScience China Press·JournalScience Bulletin·DateApr 7, 2026

No soft drink before the massage

Researchers found that consuming sugar before a relaxing massage impairs the body's ability to relax by activating the sympathetic nervous system. The study, published in the International Journal of Psychophysiology, involved 94 healthy adults who received either a drink containing glucose or water before undergoing relaxation exercises.

SourceUniversity of Konstanz·JournalInternational Journal of Psychophysiology·DateApr 7, 2026

Swapping meat and dairy for plant-based foods cuts climate pollution by 35%, randomized clinical trial shows

Replacing meat and dairy with plant-based foods reduces greenhouse gas emissions by 35%, equivalent to eliminating 600 miles of driving. A low-fat vegan diet with soybeans also produces major health improvements, including a 92% reduction in severe hot flashes.

SourcePhysicians Committee for Responsible Medicine·JournalBMJ Nutrition Prevention & Health·TypeRandomized controlled/clinical trial·DateApr 7, 2026

Small-volume hypertonic saline plus furosemide linked to lower inflammatory and remodeling markers in acute heart failure

Treatment with i.v. furosemide plus HSS significantly decreased serum levels of inflammatory biomarkers IL-6, sST2, hsTnT, galectin-3, and NT-proBNP. The study found that this combination therapy modulated some miRNA expression and was associated with reduced miR181b expression compared to furosemide alone.

SourceImpact Journals LLC·JournalAging-US·TypeNews article·DateApr 7, 2026

Materials that learn to change shape

Scientists at the University of Amsterdam have developed metamaterials that learn and adapt without a central brain, allowing them to change shape and perform advanced tasks. These 'smart' materials can forget old shapes and learn new ones, enabling them to evolve and perform complex tasks.

SourceUniversiteit van Amsterdam·JournalNature Physics·TypeExperimental study·DateApr 7, 2026

Turmeric/ginger extract shows multiple benefits for bone implants

Researchers found that an extract of turmeric and ginger helps bone implants bond strongly while killing bacteria and cancer cells. The extract roughly doubled bone bonding within six weeks around the implant site, killed more than 90% of bacteria on implant surfaces, and sharply reduced cancer-causing cells.

SourceWashington State University·JournalJournal of the American Ceramic Society·TypeExperimental study·DateApr 7, 2026

Experienced therapists can give psychology students an extra boost

A new study from Norwegian University of Science and Technology suggests that observing experienced therapists can enhance psychology students' ability to talk with patients. Psychology students who observed therapists over 10 weeks improved their ability to form bonds and repair relationships with patients, according to the research.

SourceNorwegian University of Science and Technology·JournalPsychotherapy Research·TypeObservational study·DateApr 7, 2026

Green skepticism indirectly reduces intention to purchase sustainable products

A study from Hiroshima University found that green skepticism weakens two key drivers of green consumption: seeking trustworthy environmental information and anticipated guilt about making less sustainable choices. This challenges the common assumption that skeptical consumers will investigate more before deciding on purchases.

SourceHiroshima University·JournalSustainability·TypeData/statistical analysis·DateApr 7, 2026

An editorial by Tsu-Jae Liu on AI in engineering

National Academy of Engineering President Tsu-Jae Liu presents AI as a tool to expand engineers' problem-solving capacity and develop innovative solutions. The editorial calls for multidisciplinary education integrating AI while addressing its limitations and societal implications.

SourcePNAS Nexus·JournalPNAS Nexus·DateApr 7, 2026

Chinese Medical Journal article white matter lesions modifying endovascular therapy outcomes in large ischemic core stroke: A secondary analysis of the ANGEL-ASPECT trial

A secondary analysis of the ANGEL-ASPECT trial found EVT to be beneficial for patients with anterior-circulation LVO and a large ischemic core and absent-to-moderate white matter lesions. In contrast, those with severe WMLs showed less pronounced benefits, suggesting uncertainty about EVT's efficacy in this subgroup.

SourceChinese Medical Journals Publishing House Co., Ltd.·JournalChinese Medical Journal·TypeData/statistical analysis·DateApr 7, 2026

The protein that helps cancer cells survive treatment

Researchers at Umeå University have discovered a key protein that helps cancer cells survive treatment by blocking apoptosis. The study provides a deeper understanding of how proteins interact within the cell, which could lead to new cancer therapies targeting Bcl-2 and its protective function.

SourceUmea University·JournalACS Chemical Biology·TypeExperimental study·DateApr 7, 2026

Microbial hockey

Researchers at ISTA's Materiali Molli Lab used E. coli bacteria to create an active bath that propelled sticky colloids into gel-like aggregates, rotating clockwise due to the bacteria's twisting motion. The study revealed that hydrodynamic interaction plays a key role in driving motion through the counter-rotation of body and flagella.

SourceInstitute of Science and Technology Austria·JournalNature Physics·TypeExperimental study·DateApr 7, 2026

GMO pictures may reinforce existing views, deepening the divide

A new study published in JCOM finds that images of GMOs tend to reinforce pre-existing attitudes, amplifying polarization rather than changing minds. The study used a representative sample of the US population and found that even positive images could make people who already supported GMOs more positive, while making skeptics and uncer...

SourceSissa Medialab·JournalJournal of Science Communication·DateApr 7, 2026

Counting the silence: How years of data crunching led to female artists making up majority of Brit Award nominees

A decade-long analysis reveals a significant gap in solo female Irish artists reaching number one on charts, but data-driven intervention has led to a shift in Brit Awards nominations. The study highlights the impact of commercial mechanisms like airplay on public recognition and industry trends.

SourceFrontiers·JournalFrontiers in Communication·TypeData/statistical analysis·DateApr 7, 2026