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Science News Archive 2022 - Page 50


Page 50 of 448

Aging | IGF1 gene therapy in middle-aged female rats delays reproductive senescence through its effects on hypothalamic GnRH and kisspeptin neurons

Researchers found that IGF1 gene therapy increases kisspeptin expression and GnRH release, and alters microglial cell numbers, suggesting a potential protective effect against reproductive decline. This could lead to new strategies for optimizing lifespan and combating age-related health problems in women.

SourceImpact Journals LLC·JournalAging-US·TypeExperimental study·DateNov 16, 2022

Injectable biomaterial with enhanced mechanical and coagulative capabilities for treating aneurysms

A new injectable hydrogel has been developed with enhanced shear-thinning properties, improved cellular biocompatibility, and significantly reduced clotting times. The biomaterial was created by adding sodium phytate to a gelatin-based compound, promoting even greater cohesion and triggering the initiation of blood coagulation.

SourceTerasaki Institute for Biomedical Innovation·JournalMacromolecular Bioscience·TypeExperimental study·DateNov 16, 2022

Hydrogen bonding promotes photocatalytic alcohol coupling

Researchers found that adding water increases selectivity of 2,3-butanediol generation by 57%. Hydrogen bonding stabilizes radical intermediates, avoiding oxidation and promoting selective coupling. The study reveals non-chemical bonding interactions can steer reaction paths for selective photocatalysis.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalJournal of the American Chemical Society·DateNov 16, 2022

Researchers at the technion have developed a new technology for growing printed tissues for transplantation

Researchers at the Technion-Israel Institute of Technology have developed a novel printing and growing technique for tissue, which suppresses the typical shrinkage of printed tissues prior to transplantation. The print-and-grow method uses an innovative microgel support material, preserving the size and shape of the tissue.

SourceTechnion-Israel Institute of Technology·JournalAdvanced Science·TypeExperimental study·DateNov 16, 2022

Genetic analysis of the most common type of bladder cancer in patients with metastatic disease yields guidance on treatment options

A comprehensive genomic analysis of over 200 patients with metastatic urothelial carcinomas identified potential treatment options for nearly 70% of patients. The study found that integrating clinical and molecular features could predict response to immunotherapies, offering hope for personalized treatment approaches.

SourceUNC Lineberger Comprehensive Cancer Center·JournalNature Communications·TypeRandomized controlled/clinical trial·DateNov 16, 2022

High-temperature superconductivity in lanthanum, yttrium, and cerium ternary hydrides

A team of researchers from Japan Advanced Institute of Science and Technology has discovered thermodynamically stable phases in Y–Ce–H and La–Ce–H systems that exhibit high-temperature superconductivity. Calculations predicted Tc values of up to 173 K, paving the way for the development of more energy-efficient and sustainable societies.

SourceJapan Advanced Institute of Science and Technology·JournalMaterials Today Physics·DateNov 16, 2022

Got the sniffles? Here's how to make the right decision around family gatherings

A new University of Colorado Boulder study shows that people tend to prioritize others' health and wellbeing when taking a moment to reflect on their behavior. When instructed to practice 'structured reflection,' participants were more likely to cancel gatherings and minimize public health risks, valuing others' health and wellbeing.

SourceUniversity of Colorado at Boulder·JournalPNAS Nexus·TypeRandomized controlled/clinical trial·DateNov 16, 2022

In utero exposure to flame retardants increases anxiety symptoms in adolescents

Researchers found that higher levels of polybrominated diphenyl ethers (PBDEs) in pregnant women were associated with increased anxiety scores in their children at age 12. The study suggests that exposure to flame retardants during early brain development may be a risk factor for developing anxiety symptoms in early adolescence.

SourceUniversity of Cincinnati·JournalDepression·TypeObservational study·DateNov 15, 2022

Gradual increase in daily activity with psychological therapies can improve mental health for cancer patients and survivors

A systematic review found significant effects on anxiety, depression, fatigue, physical activity, quality of life, and social impairment in cancer patients who combined behavioural graded activity with psychological therapies. The effects remained significant after a period of one to three months.

Medicines with sugar chains

Researchers used native top-down mass spectroscopy to study the interplay between glycans and oligomerization in various therapeutic hormones and cytokines. They found that glycans significantly stabilize some proteins, such as tumor necrosis factor-α, while others, like interferon-β, are independent of glycosylation status.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateNov 15, 2022

Nerve cell discovery may lead to better treatment for diseases of the nervous system

Scientists at King's College London and the University of Bath have made a groundbreaking discovery about a molecule that plays a crucial role in nerve cell development. The study found that this molecule, known as SNRNP70, is not only present in the nucleus but also in the cytoplasm of nerve cells, where it shapes messenger RNA strand...

SourceUniversity of Bath·JournalCurrent Biology·TypeExperimental study·DateNov 15, 2022

Corporate duty waivers limit organic company growth and innovation, with R&D investment falling by nearly one fifth

A new study co-authored by Bayes Business School found that larger public companies suffer from loss of innovation and lower share price value when managers are permitted to take decisions in their own self-interest. The study examined the effects of waiving fiduciary duties on R&D investment, finding a significant decline.

SourceCity St George’s, University of London·JournalReview of Financial Studies·TypeObservational study·DateNov 15, 2022

Decoding secretome-mediated neuron-immune cellular interaction network

Scientists used single-cell integrative secretion profiling technology to map the interaction between neurons and immune cells, revealing heterogeneity in secreted factors and their roles in regulating neuronal function. The study found that infiltrating macrophages inhibit neuronal secretion of exosomes, while microglia promote neuros...

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalProceedings of the National Academy of Sciences·TypeCommentary/editorial·DateNov 15, 2022

THE LANCET ONCOLOGY: Experts warn of a European cancer epidemic in the next decade if weaknesses in cancer health systems and cancer research are not urgently addressed

A new report by the European Groundshot Commission highlights current and future challenges in cancer research across Europe. The authors estimate that approximately one million cancer diagnoses were missed during the COVID-19 pandemic, and the war in Ukraine poses a significant threat to clinical trials and workforce gaps.

SourceThe Lancet·JournalThe Lancet Oncology·TypeSystematic review·DateNov 15, 2022

Autonomous crawling soft ‘ringbots’ can navigate narrow gaps

Researchers at NC State University have developed a ring-shaped soft robot capable of crawling across surfaces when exposed to elevated temperatures or infrared light. The 'ringbots' are made of liquid crystal elastomers in the shape of looped ribbon, resembling a bracelet, and can pull a small payload across various environments.

SourceNorth Carolina State University·JournalAdvanced Materials·TypeExperimental study·DateNov 15, 2022

People with diabetes may benefit more from a pancreas transplant than other treatments

A new study published in the Journal of Clinical Endocrinology & Metabolism reveals that pancreas transplantation can provide up to 90% of recipients with diabetes freedom from insulin therapy and glucose monitoring. Despite high success rates, transplant numbers have declined due to lack of consensus criteria, education, and resource ...

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateNov 15, 2022

‘Bike boxes’ can improve urban intersections for cyclists, Oregon State research shows

A bike box setup can help cyclists stay safe at urban, signalized intersections by providing a visible space to navigate through the intersection. The study found that among three treatments, bike boxes were the most versatile, offering a balance of safety and requiring riders to perceive potential danger.

SourceOregon State University·JournalAccident Analysis & Prevention·TypeExperimental study·DateNov 15, 2022

Dynamic apertures with diffusion-regulatory functionality in soft porous crystals: A key to solving the century puzzle on isotopologues separation

Researchers have developed a novel proposal for designing flip-flop dynamic crystals with temperature-regulated apertures to separate water isotopologues. The new material exhibits excellent separation factor and high selectivity, overcoming the century-old challenge in separation science.

SourceTsinghua University Press·JournalNano Research·DateNov 15, 2022

Personalized breast cancer screening could improve cancer survival and reduce overdiagnosis

A new model predicts individual breast cancer risk based on ten known risk factors, allowing for tailored screening strategies. The study found that the risk of developing breast cancer ranges from 0.22% to 7.43%, with some factors, such as exercise, having a greater impact than previously thought.

Cannabis not made safer by increasing its CBD content

New research from King's College London found increasing CBD content in cannabis does not significantly change the effects of THC on cognitive performance or psychotic symptoms. The study suggests that choosing cannabis with higher CBD:THC ratios may be safer due to lower THC levels, but CBD has no impact on intoxication quality.

SourceKing's College London·JournalNeuropsychopharmacology·TypeExperimental study·DateNov 15, 2022

‘Sound’ly segregated supramolecular helices

Researchers have successfully segregated oppositely helical supramolecular polymers in a solution using audible sound, inducing surface vibrations and advection currents. This approach allows for the spatiotemporal control of chiral supramolecular systems, enabling the segregation of multiple aggregates.

SourceInstitute for Basic Science·JournalChem·TypeExperimental study·DateNov 15, 2022

Beneficial and beautiful: Biodiversity of meadows and pastures can be an asset for nature, agriculture, and tourism

A large-scale study found that high plant diversity in meadows and pastures supports numerous ecosystem services, including pollination, soil quality and cultural experiences. Various stakeholder groups, from local residents to the tourism industry, can benefit from increased biodiversity.

Scientists find new variations among sperm cells

Researchers have found that genetic differences within individual sperm cells can affect their swimming behavior, which has implications for fertility and birth defects. The study identified greater variability in velocity among mutated samples compared to normal ones.

SourceNew York University·JournalScientific Reports·TypeExperimental study·DateNov 15, 2022

Children learn more quickly than adults

A study published in Current Biology found that children exhibit rapid boosts of GABA during visual training, stabilizing new learning and making it more efficient. This discovery suggests that children may acquire new knowledge and skills faster than adults, with implications for teaching and learning strategies.

SourceCell Press·JournalCurrent Biology·TypeObservational study·DateNov 15, 2022

Evolutionary analysis shows SARS-CoV-2 variants converging

A new web-based tool called Taxonium is helping scientists track the evolution of SARS-CoV-2 and other viruses by analyzing massive genetic datasets. The analysis reveals that COVID-19 variants worldwide are repeatedly evolving the same mutations, suggesting a convergent evolutionary process.

SourceeLife·JournaleLife·DateNov 15, 2022

A potential therapy to reduce the side effects of a chemotherapy

Scientists have identified a potential therapy to reduce the side effects of cisplatin chemotherapy, which can cause kidney toxicity and neuropathic pain. Istradefylline, an approved Parkinson's disease drug, has been found to mitigate these harmful effects while preserving cisplatin's anti-tumor properties.

SourceINSERM (Institut national de la santé et de la recherche médicale)·JournalJournal of Clinical Investigation·DateNov 15, 2022