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Science News Archive September 2022 - Page 8


Page 8 of 38

What if some stress actually protects your body?

Researchers at Case Western Reserve University found that chronic daily stress was beneficial against a second injury, inducing formation of immune cells called TLOs which protected against intestinal inflammation. The study also revealed an association between stressed mice and increased production of cytokines IL-23 and IL-22.

SourceCase Western Reserve University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateSep 27, 2022

Immune cells more susceptible to being suppressed allow acceptance of transplanted organs

In a new study, researchers found that immune T cells lacking the key transcription factor Satb1 are more susceptible to suppression by regulatory T cells, leading to transplant tolerance. The study provides insight into the mechanism behind transplantation tolerance and may lead to the development of new immunosuppression regimens.

SourceUniversity of Chicago·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateSep 26, 2022

Long-term memories a matter of order—not just repetition

A study by neuroscientists at New York University reveals that the brain's machinery interacts in nuanced ways to form long-term memories. The researchers found that neurons can sense not only repetition but also the order of repeated experiences, allowing them to discriminate between different patterns and build memories.

SourceNew York University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateSep 26, 2022

Low-carb vegan diet shows similar health benefits to vegetarian diet, study shows

A new study from St. Michael's Hospital found that a low-carb vegan diet has the same health effects as a vegetarian diet, but at a much lower cost to the environment. The researchers also discovered that the lower carbon emission value of the vegan diet was associated with a larger reduction in blood cholesterol.

SourceSt. Michael's Hospital·JournalAmerican Journal of Clinical Nutrition·TypeRandomized controlled/clinical trial·DateSep 26, 2022

Correcting peers is key in small-group learning

New research from the University of Georgia suggests that students who understand their strengths and weaknesses and are willing to ask for clarification and correct misinformation in small groups are more successful. The study identified seven types of metacognitive statements or questions associated with higher-quality reasoning.

SourceUniversity of Georgia·JournalCBE—Life Sciences Education·DateSep 26, 2022

New study adds to evidence on best CVAD securement methodology

Researchers found that subcutaneous anchor securement systems significantly reduced catheter migration (1.76%) compared to other methods (4.17%, 6.77%, and 9.69%). The study adds to the evidence supporting the use of SecurAcath, which has been shown to reduce bloodstream infections and prolong catheter lifespan.

SourceDowling & Dennis PR·JournalJournal of the Association for Vascular Access·TypeSystematic review·DateSep 26, 2022

Remdesivir-resistant version of COVID-19 detected in organ transplant recipients

A new study identified a remdesivir-resistant version of COVID-19 in two kidney transplant patients treated with immunosuppressive drugs. The virus developed the V7921 gene mutation, which allows it to resist antiviral therapy, highlighting the need for continued monitoring and potential development of additional treatments.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalClinical Infectious Diseases·TypeCase study·DateSep 26, 2022

Don’t use drugs and ride: Hospitals treat thousands of drug-related bike injuries each year

A recent study found that over 11,000 people treated in US emergency departments for drug-related bike injuries were men, with methamphetamine being the most common substance involved. The study highlights the need for further research and interventions to prevent these incidents.

SourceJournal of Studies on Alcohol and Drugs·JournalJournal of Studies on Alcohol and Drugs·TypeData/statistical analysis·DateSep 26, 2022

The neural cartography of smell

A study published in Cell reveals that the shape of receptor proteins determines axon targeting precision in mice, helping explain how olfactory neurons send signals to specific glomeruli. This discovery could lead to early detection of olfactory deficits and understanding of brain function.

SourceColumbia University·JournalCell·TypeExperimental study·DateSep 26, 2022

Diabetes self-care reached by 32% who built trust with community health workers, study finds

A study found that building trust with community health workers (promotores) can lead to long-term self-care in type 2 diabetes patients. 32.4% of participants achieved 'self-care generativity,' while 40.5% progressed to 'stabilization.' The model, called Nosotros, could be replicated to improve chronic disease management.

SourceUniversity of Texas Health Science Center at San Antonio·JournalThe Annals of Family Medicine·TypeObservational study·DateSep 26, 2022

Magnetic field helps thick battery electrodes tackle electric vehicle challenges

Researchers at UT Austin fabricated a new type of electrode using magnets to create vertical alignment, enabling faster charging and potentially doubling range on single charge. The vertically assembled nanosheet networks show superior electrochemical performance due to high mechanical strength and electrical conductivity.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateSep 26, 2022

Researchers identify potential therapeutic targets to prevent hearing loss caused by antibiotics

Researchers at Indiana University School of Medicine have identified the autophagy pathway in hair cells linked to permanent hearing loss caused by aminoglycosides. The study developed laboratory models with reduced RIPOR2 expression, which did not exhibit hair cell death or hearing loss when treated with antibiotics.

SourceIndiana University School of Medicine·JournalDevelopmental Cell·DateSep 26, 2022

Inside the brains of procrastinators

A recent study from the Paris Brain Institute has identified a region of the brain where the decision to procrastinate is made: the anterior cingulate cortex. The researchers developed an algorithm to predict participants' tendency to procrastinate, suggesting that procrastination is related to the impact of deadlines on task evaluation.

SourceInstitut du Cerveau (Paris Brain Institute)·JournalNature Communications·DateSep 26, 2022

Professor Jong-Sung Yu’s research team at DGIST discovered a turning point in the lithium-sulfur battery field, enabling the development of new next-generation battery technologies with high energy and long lifespan.

The research team created a new porous silica/sulfur interlayer that achieves higher long-term stability than conventional materials, enabling more efficient lithium-sulfur batteries. By loading sulfur in the intermediate layer, they increased capacity per cell area and improved battery performance.

More than a gut feeling

Research reveals that gut flow velocity directly affects nutrient absorption and bacterial levels, with optimal conditions for each. The study suggests the gut adjusts its flow speed to regulate these processes in response to meal intake or fasting, potentially preventing diseases such as chronic fatigue and poor nutrient absorption.

Not Just for the Gods

A new study by UC Santa Barbara researchers Anabel Ford and Mattanjah de Vries reveals that cacao was accessible to the general populace and used in celebrations at all levels of ancient Maya society. The analysis of 54 archaeological ceramic sherds from El Pilar, Belize, found evidence of cacao residues in all vessel types, including ...

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateSep 26, 2022

Colonoscopies in FIT-positive persons requires much higher ADR than primary colonoscopy

A cohort study found that endoscopists performing colonoscopies in FIT-based screening programs should aim for markedly higher ADRs compared to primary colonoscopy screening. The study suggests that high ADRs are associated with lower colorectal cancer incidence and mortality. Researchers recommend using ADR targets, including differen...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeObservational study·DateSep 26, 2022

A study from the University of Exeter reveals a master regulator controlling fungal infection of wheat

The University of Exeter team identified a 'master regulator' that controls the formation of invasive hyphae in the fungus Zymoseptoria tritici. This discovery provides a crucial target for developing new control strategies against Septoria tritici blotch, a destructive fungal disease affecting wheat yields worldwide.

SourceUniversity of Exeter·JournalNature Communications·TypeExperimental study·DateSep 26, 2022

Tiny animal hairs could act as sensitive compass needles

Research by Kirill Kavokin found that around 100 hair cells in an animal's inner ear can act as effective biological compass needles, allowing them to detect the magnetic field. This discovery could bring biologists closer to understanding the origins of magnetoreception and identifying mechanisms responsible.

SourceSpringer·JournalThe European Physical Journal Special Topics·DateSep 26, 2022

Genetic defects lead to enamel malformations

A study conducted at the University of Zurich has identified a key gene network responsible for severe tooth enamel defects. The researchers found that mutations in the Adam10 molecule lead to disorganization of ameloblasts and severe defects in both structure and mineral composition of enamel.

SourceUniversity of Zurich·JournaliScience·TypeExperimental study·DateSep 26, 2022

Artificial intelligence reduces a 100,000-equation quantum physics problem to only four equations

Physicists used machine learning to compress a complex quantum problem into four equations, capturing the physics of electrons on a lattice with high accuracy. The approach could revolutionize how scientists investigate systems containing many interacting electrons and potentially aid in designing materials with sought-after properties.

SourceSimons Foundation·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateSep 26, 2022

‘Placenta-on-a-chip’ mimics malaria-infected nutrient exchange between mother-fetus

Researchers developed a novel 3D microfluidic device to study complicated processes within the placenta, including placental malaria. The model demonstrates that CSA-binding infected erythrocytes add resistance to the simulated placental barrier for glucose perfusion and decrease glucose transfer across this barrier.

SourceFlorida Atlantic University·JournalScientific Reports·TypeComputational simulation/modeling·DateSep 26, 2022

Study finds all African carnivores at risk for range loss

A new study led by Yale University's Nyeema C. Harris found that 91 African carnivore species have some portion of their range at risk of contraction, with an average of 15% of ranges threatened. The research introduced a novel approach to assessing threats and assets across species ranges.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateSep 26, 2022

Plastics of the future will live many past lives, thanks to chemical recycling

Researchers at the University of Colorado Boulder have developed a method to break down durable plastics into their most basic building blocks and reform them into the same material. This breakthrough could lead to the creation of new technologies, new materials, and enable the circular production of more plastic materials in daily life.

SourceUniversity of Colorado at Boulder·JournalNature Chemistry·DateSep 26, 2022