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Science News Archive 2021 - Page 174


Page 174 of 510

Getting under the skin: Tracing prevalence of skin diseases in type 2 diabetes mellitus

A new study examining the association between type 2 diabetes mellitus and skin diseases reveals a strong link between the two conditions. The research, published in Chinese Medical Journal, found that 93.5% of individuals with T2DM had skin problems, including over 47 types of comorbid skin diseases.

SourceCactus Communications·JournalChinese Medical Journal·TypeRandomized controlled/clinical trial·DateAug 16, 2021

From coral reef to goat ranch: Uncovering the botanical history of the Guadalupe Mountains

Researchers sequenced DNA from plant specimens collected nearly 50 years ago to analyze genetic diversity and its response to climate change. The study found that several species restricted to the Guadalupe Mountains had surprisingly high amounts of genetic diversity, which could help them adapt to changing conditions.

SourceBotanical Society of America·JournalApplications in Plant Sciences·DateAug 16, 2021

Existing drug may help improve responses to cellular therapies in advanced leukemias

Researchers at the University of Pennsylvania School of Medicine have identified a new mechanism of resistance in advanced chronic lymphocytic leukemia (CLL) patients to CAR T cell therapy. They found that inhibiting the BET protein with the small molecule inhibitor JQ1 can reinvigorate exhausted T cells and increase their production.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Clinical Investigation·TypeExperimental study·DateAug 16, 2021

History of the spread of pepper (C. annuum) is an early example of global trade

Genomic data analyzed over 10,000 pepper samples from worldwide genebanks to reconstruct the history of pepper's global expansion. The study found significant duplication of samples and regions with unique peppers, indicating human culture played a primary role in shaping pepper's spread globally.

SourceLeibniz Institute of Plant Genetics and Crop Plant Research·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateAug 16, 2021

New analysis reveals how region-wide policies might be ineffective in eliminating local risk factors for coronavirus spread

Researchers found regional lockdowns did not sufficiently address local COVID-19 risk differences in Italy. Instead, targeted interventions focused on high-risk areas could help strike a better balance between public health and economic damage. The study provides guidance for policy-makers to design effective interventions.

SourceUniversity of Warwick·JournalThe Lancet Regional Health - Europe·DateAug 16, 2021

Scientists with the help of computer modeling discover a substance that blocks coronavirus

Researchers at South Ural State University used computer modeling to identify a substance that can block the spread of coronavirus. The study found that ligands must match RNA polymerase as closely as possible to be effective, and scientists have developed an equation to test other ligands' effectiveness on receptors.

SourceSouth Ural State University·JournalMolecules·TypeComputational simulation/modeling·DateAug 16, 2021

Berkeley Lab science snapshots

Researchers at Berkeley Lab have made significant breakthroughs in developing a highly effective COVID-19 antibody therapy and an efficient thermoelectric system that can convert waste heat to electricity. The new antibody, S309, has been shown to neutralize all known SARS-CoV-2 strains and may be more difficult for new mutants to escape.

Survivors of trauma struggle to move on from the loss of loved ones

A study found that trauma survivors who experienced post-traumatic stress disorder (PTSD) symptoms were more likely to experience complicated grief, a type of prolonged and intense sorrow. Researchers suggest that treating PTSD symptoms early may help prevent persistent grief in the long term.

SourceAmerican Psychological Association·JournalPsychological Trauma Theory Research Practice and Policy·TypeObservational study·DateAug 16, 2021

Chaos in the brain

A defective KCNQ3 channel disrupts the brain's navigation system, leading to disorganized place cell activity patterns. This study provides new insights into the role of KCNQ3 channels in Alzheimer's disease and other cognitive disorders, suggesting potential targets for future drug research.

SourceFriedrich-Alexander-Universität Erlangen-Nürnberg·JournalNature Communications·DateAug 16, 2021

Insects’ sense of smell gives insight into better repellent design and drug screening

Researchers studied insect olfactory system to improve repellent design and drug screening. They found that chemoreceptor tuning depends on ligand-binding subunit identity, revealing diverse molecular mechanisms. These findings have potential applications in 'mammalian' chemogenetics and insect-based research.

SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalMolecular Biology Reports·TypeExperimental study·DateAug 16, 2021

Antipsychotics during pregnancy

This observational study found no association between prenatal antipsychotic exposure and increased risk of preterm birth, attention-deficit/hyperactivity disorder (ADHD), and autism spectrum disorder in children. The study's findings suggest that antipsychotics during pregnancy do not pose a significant risk to fetal development.

SourceJAMA Network·JournalJAMA Internal Medicine·DateAug 16, 2021

Evaluation of data from a large-scale SARS-CoV-2 surveillance study reveals that comorbidities predict positive RT-PCR testing. Study finds equal risk of asymptomatic infection among children, teenagers, and working-age adults

A large-scale surveillance study in Madurai, India, found that comorbidities are a significant predictor of positive RT-PCR testing. The study also revealed an equal risk of asymptomatic infection among children, teenagers, and working-age adults, highlighting the importance of non-communicable disease control in COVID-19 containment s...

SourceCenter for Disease Dynamics, Economics & Policy·JournalThe Lancet Infectious Diseases·DateAug 16, 2021

Russian researchers present ultra-precise brain imaging tool

A team from the Russian Quantum Center developed a novel solid-state supersensitive room-temperature magnetometer capable of registering weak electrical sources in the brain. The device successfully detected alpha rhythm, a sinusoidal electric current in the back of the brain, and showed higher sensitivity than existing systems.

SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalHuman Brain Mapping·TypeExperimental study·DateAug 13, 2021

‘Missing jigsaw piece’: engineers make critical advance in quantum computer design

Quantum engineers at the University of New South Wales have discovered a new technique to control millions of spin qubits, a critical step towards building a practical quantum computer. This breakthrough uses a novel component called a dielectric resonator to focus microwave power and deliver uniform magnetic fields across the chip.

SourceUniversity of New South Wales·JournalScience Advances·TypeExperimental study·DateAug 13, 2021

Back to the land: Research helps farmers sequester soil carbon

Research by Wuletawu Abera and his team has shown that vegetation cover combined with earthworks like retaining walls or trenches can help increase the amount of carbon stored in the soil. The studies focused on the Ethiopian highlands, where land degradation has led to erosion and loss of soil organic matter.

Men, Conservative Party supporters and Brexit-backers more likely to support the use of nuclear weapons, study shows

A recent study published in the European Journal of International Security found that men and supporters of the Conservative Party are more likely to support the use of nuclear weapons. The study analyzed data from the new UK Security Survey and found that those who voted to leave the EU and endorsed superior military power worldwide w...

SourceUniversity of Exeter·JournalEuropean Journal of International Security·TypeData/statistical analysis·DateAug 13, 2021

Three-layered control of mRNA tails

A new study reveals that multiple pathways regulate poly(A) tail lengths in yeast, involving poly(A) binding proteins and a self-regulating pathway. This discovery sheds light on the complex control of mRNA tails and their impact on protein production.

SourceAarhus University·JournalGenes & Development·TypeExperimental study·DateAug 13, 2021

Polymer enables tougher recyclable thermoplastics

Cornell researchers created a chemically recyclable thermoplastic by synthesizing long polymer chains using a special catalyst. The resulting material, poly(1,3-dioxolane) or PDXL, has high tensile strength and can be easily depolymerized back to its monomer state, making it suitable for large-scale applications like packaging products.

SourceCornell University·JournalScience·DateAug 13, 2021

Navigating the corn maze: FSU researchers develop technique to map out ‘light switches’ of maize genome

Researchers at Florida State University have developed a technique called MOA-seq to map DNA sequences in maize, allowing them to identify regulatory switches that control gene expression. This knowledge could lead to healthier plants, higher nutrient content, and better growth resistance, ultimately improving crop yields.

SourceFlorida State University·JournalPLOS Genetics·DateAug 13, 2021

Scientists take step to improve crops’ photosynthesis, yields

Researchers at Cornell University have made a significant breakthrough in improving crop yields by enhancing photosynthesis. By removing the enzyme carbonic anhydrase from chloroplasts, scientists have found that plants can still undergo photosynthesis without compromising their growth, paving the way for more efficient food production.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateAug 13, 2021