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Science News Archive 2024 - Page 273


Page 273 of 484

Does a beet a day keep heart disease away?

A new study led by Penn State researchers found that daily consumption of beetroot juice may improve blood vessel function and reduce future heart disease risk in postmenopausal women. Beetroot juice contains high levels of nitrate, which helps blood vessels expand and improves circulation.

SourcePenn State·JournalFrontiers in Nutrition·TypeRandomized controlled/clinical trial·DateJun 10, 2024

SNMMI Image of the Year: Ultra-high-resolution PET provides never before seen images of the brain

The NeuroEXPLORER PET scanner offers exceptional brain PET images with ultra-high sensitivity and resolution, showcasing focal uptake in specific brain nuclei. This technology has the potential to spur advances in treating conditions like Alzheimer's disease, Parkinson's disease, and mental illnesses.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateJun 10, 2024

In a significant first, researchers detect water frost on solar system’s tallest volcanoes

A team of planetary scientists has detected patches of water frost on Mars' Tharsis volcanoes, which are the tallest in the solar system. The frost forms for only a few hours after sunrise and is incredibly thin, but constitutes a significant amount of water that swaps between the surface and atmosphere each day during the cold seasons.

SourceBrown University·JournalNature Geoscience·TypeComputational simulation/modeling·DateJun 10, 2024

Optimism wards off procrastination

A study published in Scientific Reports found that people with an optimistic outlook on the future are less likely to be severe procrastinators. The researchers surveyed nearly 300 young people and discovered that those who believed their stress levels would decrease in the future were more likely to overcome procrastination.

SourceUniversity of Tokyo·JournalScientific Reports·TypeSurvey·DateJun 10, 2024

Case studies show how quasi-governmental organizations could strengthen climate adaptation governance

A new study examines the design characteristics of quasi-governmental organizations (QGOs) to provide insights on how to improve climate adaptation governance. The research finds that some QGOs are useful for overcoming politicization or fostering multi-level stakeholder coordination, but none prove optimal for both simultaneously.

SourcePrinceton School of Public and International Affairs·JournalClimatic Change·TypeCase study·DateJun 10, 2024

Clinical trial shows promising results in a two-drug combination that curbs methamphetamine use

A clinical trial shows that a combination of injectable naltrexone and extended-release oral bupropion reduces methamphetamine use for up to 12 weeks. The study found a significant increase in methamphetamine-negative urine tests among participants receiving the two-drug therapy.

SourceUniversity of California - Los Angeles Health Sciences·JournalAddiction·TypeRandomized controlled/clinical trial·DateJun 10, 2024

When is genome sequencing advisable?

Genome sequencing outperforms exome sequencing in diagnosing rare genetic diseases, revealing new clues and mechanisms. The method's advantages include detecting non-coding mutations and gene segments outside the exome.

SourceUniversität Leipzig·JournalNew England Journal of Medicine·TypeExperimental study·DateJun 10, 2024

Peers crucial in shaping boys’ confidence in math skills

A study from the University of Zurich found that peer relationships play a crucial role in shaping math confidence in boys, while girls' subjective evaluations are more driven by objective performance. The study suggests that math skills are more important to boys and their self-assessment is influenced by social processes.

SourceUniversity of Zurich·JournalEuropean Societies·TypeData/statistical analysis·DateJun 10, 2024

Breakthrough in creating cyclic peptide opens the way for new antibiotics

Scientists at King's College London have developed a rapid method for creating cyclic peptides, an important class of antibiotic molecules, which can be produced in minutes rather than hours or days. This breakthrough could inspire renewed efforts towards developing new antibiotics to combat antimicrobial resistance.

SourceKing's College London·JournalJournal of the American Chemical Society·TypeExperimental study·DateJun 10, 2024

Analyzing the benefits of transboundary cooperation in the Lancang-Mekong River Basin

A new study by IIASA researchers highlights the benefits of transboundary cooperation in the Lancang-Mekong River Basin, which could maximize economic benefits while minimizing environmental losses. Full cooperation is recommended as a more beneficial and stable option for riparian countries, especially under changing climate conditions.

SourceInternational Institute for Applied Systems Analysis·JournalNature Water·TypeComputational simulation/modeling·DateJun 10, 2024

New study helps explain how elderly individuals react differently to COVID-19 than young people

A new study by Boston University researchers found that the immune response of lung endothelial cells is too low in older individuals during early stages of COVID-19 infection, leading to increased severity. The study suggests targeting these immune pathways may have prognostic and therapeutic benefits.

SourceBoston University School of Medicine·JournalFrontiers in Immunology·TypeExperimental study·DateJun 10, 2024

Sensing a biomarker

Researchers at Kanazawa University have developed an electrochemical biosensor to detect ADAR1, a biomolecule associated with several diseases including neurological disorders and cancer. The device shows good sensitivity and selectivity, enabling rapid detection of ADAR1 concentrations in cells.

SourceNano Life Science Institute (NanoLSI), Kanazawa University·JournalBiosensors and Bioelectronics·TypeExperimental study·DateJun 10, 2024

Super-chilled brain cell molecules reveal how epilepsy drug works

Scientists at Johns Hopkins Medicine have discovered the mechanism of action of the widely-used epilepsy drug perampanel, which targets the AMPA receptor to dampen brain cell excitability. The study provides new insights into the potential applications of perampanel in treating other neurological conditions such as Alzheimer’s disease,...

SourceJohns Hopkins Medicine·JournalNature Structural & Molecular Biology·DateJun 10, 2024

Single episode of intense exercise reduces subsequent physical activity and body temperature, contributing to weight gain

A single episode of intense exercise reduces subsequent physical activity and body temperature in mice, leading to weight gain. The study highlights the importance of considering not only calories burned during exercise but also subsequent activity levels and circadian rhythm for effective weight loss.

SourceUniversity of Tsukuba·JournalMedicine & Science in Sports & Exercise·DateJun 10, 2024

Glowing dye helps surgeons eradicate prostate cancer

A glowing marker dye attached to a special marker molecule enables surgeons to visualize prostate cancer cells in real-time, allowing for more precise removal of cancerous tissues and preservation of healthy tissue. This technology has the potential to reduce the chances of cancer recurrence and minimize life-changing side effects.

SourceCancer Research UK·JournalEuropean Journal of Nuclear Medicine and Molecular Imaging·TypeExperimental study·DateJun 9, 2024

Hearing aids help to slow the brain aging process in adults with mild cognitive impairment

Research suggests that using hearing aids can help mitigate the acceleration of brain metabolism decline in individuals with mild cognitive impairment. The study found significant annual metabolic decline in frontal cortical regions among those with untreated hearing loss, whereas those with treated hearing aids experienced no such dec...

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateJun 9, 2024

SNMMI Abstract of the Year: [177Lu]Lu-PSMA-617 extends progression-free survival with manageable safety profile in taxane-naïve advanced prostate cancer patients

[177Lu]Lu-PSMA-617 significantly improves radiographic progression-free survival and overall quality of life for patients with taxane-naive mCRPC, while minimizing adverse events. The study's findings suggest that [177Lu]Lu-PSMA-617 may change the treatment paradigm for pre-taxane advanced prostate cancer patients.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateJun 9, 2024

SNMMI announces Julie Dawn Bolin, MS, CNMT, as President of the Technologist Section during 2024 Annual Meeting

Julie Dawn Bolin, a seasoned nuclear medicine technologist and educator, has been elected as the new president of the SNMMI Technologist Section for 2024-25. Bolin aims to advance the field by bolstering educational initiatives, championing advocacy efforts, and promoting access to education and healthcare in marginalized communities.

Palm oil by-product transforms into PVC thermal stabilizer: A breakthrough in recycling and sustainability

Researchers have developed a method to synthesize an organotin mercaptide-based thermal stabilizer from palm fatty acid distillate, offering a competitive alternative to existing PVC stabilizers. The synthesized material demonstrates superior thermal stability at lower dosages and is economically viable.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeExperimental study·DateJun 8, 2024

FAP-targeted therapy demonstrates significant efficacy in controlling advanced sarcomas

Researchers found that FAP-targeted radioligand therapy controlled disease progression in nearly half of patients with advanced sarcoma, and was well-tolerated without critical organ radiation dose levels being reached. The study's results indicate a promising approach for this patient group with limited treatment options.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateJun 8, 2024

New research finds lake under Mars ice cap unlikely

Researchers at Cornell University found that small variations in layers of water ice can cause constructive interference between radar waves, producing bright reflections. This explanation accounts for the observed signals without requiring liquid water, casting doubt on potential microbial life on Mars.

SourceCornell University·JournalScience Advances·DateJun 7, 2024

Flavor unleashed: a scientific journey into the world of table grapes

Researchers have unlocked the secrets behind table grapes' diverse flavors by analyzing 38 cultivars using sensory evaluation and solvent-assisted flavour evaporation. The study identified novel flavor-associated compound profiles, revealing specific accumulations and combinations of compounds that enhance flavor intensity and diversity.

Aging speeds up and lifetime becomes shorter in animals whose cells ‘believe’ to have too many nutrients, despite following a normal diet

In animal models, increasing mTOR activity just slightly accelerates aging and shortens lifetime by up to 20%. This research provides clues on why obesity-related diseases worsen with age. A new model allows researchers to study the relationship between nutrient increase and organ aging.

SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalNature Aging·TypeExperimental study·DateJun 7, 2024

Changes Upstream: RIPE team uses CRISPR/Cas9 to alter photosynthesis for the first time

Researchers from the University of Illinois have used CRISPR/Cas9 to alter the upstream regulatory DNA of a food crop, increasing gene expression and improving downstream photosynthesis. This approach, which does not require adding foreign DNA, has shown promising results in increasing photosynthetic activity in rice.