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Science News Archive 2020 - Page 468


Page 468 of 512

The benefits of physical activity for older adults

Physically active older adults experience reduced risks of early death, breast and prostate cancer, fractures, and dementia. Physical activity also promotes healthier ageing trajectories, better quality of life, and improved cognitive functioning.

SourceWiley·JournalScandinavian Journal of Medicine and Science in Sports·DateFeb 5, 2020

Study provides new understanding of mitochondria genome with potential for new avenues of treatment for multiple cancers

Researchers at the University of Texas MD Anderson Cancer Center have made significant progress in understanding the mitochondrial genome and its role in cancer. The study found that hyper-mutated cases in kidney, colorectal, and thyroid cancers suggest oncogenic impact with signaling pathway activation.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalNature Genetics·DateFeb 5, 2020

Army scientists look inside batteries with a molecular eye

Researchers use liquid secondary ion mass spectrometry to monitor chemical reactions in battery interface, revealing key findings on SEI formation and its impact on battery performance. Understanding the chemistry of the solid-electrolyte-interphase (SEI) holds the key to unlocking future better batteries.

SourceU.S. Army Research Laboratory·JournalNature Nanotechnology·DateFeb 5, 2020

Molecular 'first responder' that triggers plaques uncovered

Researchers at Oxford University have found a protein called Plexin D1 that detects disturbances in blood flow and triggers inflammation and plaque formation, leading to serious health problems. The discovery offers new hope for developing treatments to block plaques before they form.

SourceUniversity of Oxford·JournalNature·DateFeb 5, 2020

Dementia may reduce likelihood of a 'good death' for patients with cancer

A recent study published in Geriatrics & Gerontology International found that cancer patients with dementia were less likely to achieve a good death compared to those without. The study's authors emphasize the importance of enhancing end-of-life care discussions and improving symptom management for these patients.

SourceWiley·JournalGeriatrics and Gerontology International·DateFeb 5, 2020

Study reveals global breast size dissatisfaction

A global study of 18,541 women in 40 countries found that 71% are unhappy with their breast size, with 48% wanting larger breasts and 29% satisfied. The study also linked breast size dissatisfaction to poorer psychological well-being, lower self-esteem, and reduced breast cancer awareness.

SourceAnglia Ruskin University·JournalBody Image·DateFeb 5, 2020

Direct touch of food makes eating experience more enjoyable

High self-control individuals experience food as tastier and more satisfying when touching food directly with their hands, eating more of it. Direct touch triggers an enhanced sensory response, influencing how people evaluate food. This effect persists even when self-control is primed or manipulated.

SourceStevens Institute of Technology·JournalJournal of Retailing·DateFeb 5, 2020

Development of the immune system varies according to age, location and anaemia

A new study found that immune system composition changes significantly during early childhood, with anaemia potentially reducing vaccine responses in low-income countries. The research, published in Science Translational Medicine, analyzed blood samples from children in Mozambique and Tanzania.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalScience Translational Medicine·DateFeb 5, 2020

Astronomers discover unusual monster galaxy in the very early universe

An international team of astronomers has discovered an unusual monster galaxy called XMM-2599, which formed most of its stars in a huge frenzy when the universe was less than 1 billion years old. The galaxy stopped forming stars and became inactive by the time the universe was only 1.8 billion years old.

SourceUniversity of California - Riverside·DateFeb 5, 2020

Scientists solve structure enabling cyanobacteria to thrive in low light

Researchers have solved the structure of a protein complex that enables cyanobacteria to convert weak sunlight into usable energy, giving them an adaptive advantage over other organisms. The discovery could lead to the development of crops that thrive under low-light conditions, increasing crop yields and sustainability.

SourcePenn State·JournalScience Advances·DateFeb 5, 2020

Scientists document collapse of key Central American forest engineer

The white-lipped peccary population in Central America has declined by up to 87%, with current IUCN estimates severely underestimating the actual decline. The species plays a critical ecological role and is highly vulnerable to human influence and forest loss.

SourceWashington State University·JournalBiological Conservation·DateFeb 5, 2020

Parkinson's and the immune system

Researchers have identified a link between the nervous system and immune system in Parkinson's disease, finding that genes like Parkin and PACRG protect nerve cells from cell death. These proteins regulate a signalling pathway that also plays a role in innate immunity, which prevents bacterial infections.

SourceRuhr-University Bochum·JournalScience Signaling·DateFeb 5, 2020

Study links three key variables to higher rural mortality rates in US

A recent study by Texas Tech University Health Sciences Center found that socioeconomic status, uninsured rates, and primary care physician supply are key factors contributing to higher US rural mortality rates. The study suggests that rural residency itself is not a negative factor in mortality rates.

SourceTexas Tech University Health Sciences Center·JournalHealth Affairs·DateFeb 5, 2020

NYU scientists sequence the genome of basmati rice

Researchers at New York University have sequenced the genome of two basmati rice varieties, including one with improved drought tolerance and resistance to bacterial disease. The study provides insights into the evolutionary history of basmati rice and its unique genetic traits.

SourceNew York University·JournalGenome Biology·DateFeb 5, 2020

CD19 CAR NK-cell therapy achieves 73% response rate in patients with leukemia and lymphoma

The CD19 CAR NK-cell therapy achieved a 73% response rate in patients with relapsed or refractory non-Hodgkin's lymphoma (NHL) and chronic lymphocytic leukemia (CLL), with no major toxicities reported. The treatment was administered in an outpatient setting, and responses were evident within one month following infusion.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalNew England Journal of Medicine·DateFeb 5, 2020

Autism screening rate soars with use of CHICA system developed by Regenstrief and IU

The CHICA system, developed by Regenstrief Institute and IU School of Medicine, increased autism screening rates from zero to 100% at 24 months of age. The computerized decision support tool improved health inequities by automating the screening process, making it more accessible for underrepresented racial and ethnic minorities.

SourceRegenstrief Institute·JournalJAMA Network Open·DateFeb 5, 2020

Protein could offer therapeutic target for breast cancer metastasis

A new study suggests that targeting Hsp47 could block cancer cell-platelet interaction and inhibit metastasis in triple-negative breast cancer patients. The protein is often amplified in the genes of metastatic breast cancer tissue, potentially serving as a biomarker for metastasis.

SourceUniversity of Kentucky·JournalProceedings of the National Academy of Sciences·DateFeb 5, 2020

The invisibility cloak of a fungus

A fungal pathogen, Cryptococcus neoformans, has been found to use an enzyme called chitosan deacetylase to alter its cell wall structure, making it invisible to the human immune system. Researchers have identified a new chitosan deacetylase that is crucial for the fungus's ability to evade detection.

SourceUniversity of Münster·JournalProceedings of the National Academy of Sciences·DateFeb 5, 2020

Scientists identify new genetic drivers of cancer

Researchers have identified new genetic drivers of cancer in non-coding regions of the genome, finding that many cancers are driven by mutations in these areas. The study confirmed previously reported drivers and invalidated others, while also identifying novel putative driver rearrangements near genes called AKR1C.

SourceEuropean Molecular Biology Laboratory·JournalNature·DateFeb 5, 2020

Re-engineered plant compound treats opioid addiction in mice

Researchers have re-engineered a plant-derived compound to reduce morphine-seeking behaviors in mice, preventing relapse to opioid addiction. The new molecule inhibits a protein receptor involved in heroin dependence and prevents stress-induced relapse.

SourceAmerican Chemical Society·JournalJournal of Medicinal Chemistry·DateFeb 5, 2020

Does tramadol increase hip fracture risk?

A UK patient database analysis found tramadol increases hip fracture risk by up to 1.5 new cases per 1000 person-years, compared to other pain medications. The study highlights the need for tramadol's fracture risk to be considered in clinical practice and treatment guidelines.

SourceWiley·JournalJournal of Bone and Mineral Research·DateFeb 5, 2020

Novel intervention in senior housing communities increases resilience and wisdom

A new study found that Raise Your Resilience program, focusing on gratitude and positive attitude toward aging, increased resilience and wisdom among seniors. The program, delivered by non-licensed staff, reduced daily stress and improved overall well-being in senior housing communities.

SourceUniversity of California - San Diego·JournalInternational Psychogeriatrics·DateFeb 5, 2020

NASA's Webb will seek atmospheres around potentially habitable exoplanets

Astronomers will use transmission spectroscopy and phase curves to observe the atmospheres of seven rocky planets in the TRAPPIST-1 system. The goal is to determine if these planets have atmospheres and what they're made of, which could help find out if life as we know it could survive on these distant worlds.

SourceNASA/Goddard Space Flight Center·DateFeb 5, 2020

Cancer-causing culprits will be caught by their DNA fingerprints

A recent study cataloged genetic fingerprints of DNA-damaging processes driving cancer development, providing clues on how each cancer developed. The research will help understand cancer causes, inform prevention strategies, and signpost new directions for diagnosis and treatments.

SourceWellcome Trust Sanger Institute·JournalNature·DateFeb 5, 2020

New quasi-particle discovered: The Pi-ton

Physicists at Vienna University of Technology have discovered a new type of quasi-particle called the pi-ton, which consists of two electrons and two holes. The pi-ton is created by absorbing a photon and decays into another photon, exhibiting properties similar to those of particles.

SourceVienna University of Technology·JournalPhysical Review Letters·DateFeb 4, 2020

Portable device lights the way to better foodborne illness detection

Researchers at Purdue University developed a portable device that uses bioluminescence to detect harmful E. coli in food samples. The device combines a silicon photomultiplier (SiPM) with smartphones and laptops for on-site testing, allowing for faster detection and action against foodborne illnesses.

SourcePurdue University·JournalApplied Optics·DateFeb 4, 2020

Malaria: Vaccine clinical trial for pregnant women yields promising results

A vaccine clinical trial for pregnant women with malaria has shown promising results, demonstrating safety and an appropriate immune response. The PRIMVAC vaccine was found to be well-tolerated and induced antibodies capable of recognizing the Plasmodium falciparum parasite.

SourceINSERM (Institut national de la santé et de la recherche médicale)·JournalThe Lancet Infectious Diseases·DateFeb 4, 2020

Argonne and Washington University scientists unravel mystery of photosynthesis

Researchers at Argonne and Washington University have discovered an engineered version of a protein complex that enables the switch between two possible electron transfer pathways, opening up new opportunities for designing more efficient light-driven biochemical reactions. This breakthrough has significant implications for improving h...

SourceDOE/Argonne National Laboratory·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2020

Fast screening for potential new catalysts

Researchers developed a concept to understand correlations between element selection, theoretical properties, and measurable parameters. This enables quick identification of promising candidates and optimisation of element proportions.

SourceRuhr-University Bochum·JournalAngewandte Chemie International Edition·DateFeb 4, 2020

Tiny 'bridges' help particles stick together

A team of researchers at the University of Pennsylvania found that when particles are wet and dry, thin solid bridges formed between larger clumps increase aggregates' stability. The size of particles plays a crucial role in determining how strongly they stick together.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2020

More pieces of the autism puzzle uncovered

Researchers mapped 102 new autism genes in a major international study, revealing new insights into the disorder's biology. The findings could lead to earlier diagnoses and more precise treatments for individuals with autism.

SourceAarhus University·JournalCell·DateFeb 4, 2020

Researchers report progress on molecular data storage system

Researchers at Brown University have made significant progress in developing a molecular data storage system, storing over 200 kilobytes of data in custom-synthesized small molecules. The team has shown that this approach has potential advantages over traditional methods, including scalability and higher storage capacity.

SourceBrown University·JournalNature Communications·DateFeb 4, 2020

Building a better breast

Researchers at UT Southwestern Medical Center have developed a new method for mapping out blood vessels before surgery to minimize the risk of complications in single breast reconstruction. The team found that this approach reduced fat necrosis by 2.7% compared to traditional methods, resulting in improved outcomes and breast shapes.

SourceUT Southwestern Medical Center·JournalJournal of Reconstructive Microsurgery·DateFeb 4, 2020

High-tech printing may help eliminate painful shots

Rutgers engineers create tiny needles inspired by parasites using 4D printing, achieving stronger tissue adhesion and more stable drug delivery. The microneedle outperforms previously reported examples, offering a potential solution to painful injections.

SourceRutgers University·JournalAdvanced Functional Materials·DateFeb 4, 2020

Study links high stillbirth rates worldwide to gender inequality

Researchers found that pregnant women in poor countries with lower access to education and employment are more likely to experience stillbirths. The study mapped global patterns of stillbirth rates and identified 37 countries with high rates, including Nigeria and Pakistan.

SourceUniversity of Saskatchewan·JournalScientific Reports·DateFeb 4, 2020

Neurological disorders are linked to elevated suicide rates

A new study reveals that people with neurological disorders have a 75% higher suicide rate than those without such disorders. The study found that severe neurological diseases like ALS and Huntington's disease are associated with particularly high risks of suicide.

SourceUniversity of Southern Denmark Faculty of Health Sciences·JournalJAMA·DateFeb 4, 2020

U-M researchers identify unique neuron that computes like a compass

Scientists at U-M identified distinct excitatory neurons in the retrosplenial cortex, which can continuously encode direction-related information over long durations. These low rheobase neurons are ideal for navigation, providing persistent sense of direction that complements other brain signals.

SourceUniversity of Michigan·JournalCell Reports·DateFeb 4, 2020

Suspect eliminated as a therapeutic target in B cell lymphoma

A recent study published in Blood Advances eliminates BCL-W as a potential therapeutic target for B cell lymphomas. The research team used gene editing technology and demonstrated that human B cell lymphoma cell lines can survive without BCL-W, contradicting earlier speculation about its role in cancer survival.

SourceWalter and Eliza Hall Institute·JournalBlood Advances·DateFeb 4, 2020

Grooves hold promise for sophisticated healing

Researchers at Rice University have created a grooved method to seed 3D-printed scaffolds with living cells, enabling the growth of different tissue types in a single platform. This innovative approach protects cells from heat and shear stresses, allowing for the creation of hard implants that can heal bone, cartilage, or muscle.

SourceRice University·JournalBioprinting·DateFeb 4, 2020

Study identifies interaction site for serotonin type 3A and RIC-3 chaperone

Researchers at Texas Tech University Health Sciences Center have identified the specific region of serotonin type 3A receptor that interacts with the RIC-3 chaperone protein. This discovery could lead to more effective treatments for diseases such as Alzheimer's, Parkinson's, and schizophrenia.

SourceTexas Tech University Health Sciences Center·JournalBiophysical Journal·DateFeb 4, 2020

New roles for DNA-packaging proteins

Researchers found that linker histone H1 undergoes liquid-liquid phase separation in the nucleus, forming droplets with densely packed DNA and enriching with protein HP1α. This process segregates heterochromatin from euchromatin, revealing a new function of histones in gene regulation.

SourceInstitute for Basic Science·JournalBiophysical Journal·DateFeb 4, 2020