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Science News Archive August 2023 - Page 35


Page 35 of 38

Ovarian cancer: New biological markers found that may predict which patients won't respond to chemotherapy

Researchers have discovered a 64-protein signature that can predict which ovarian cancer patients are unlikely to respond to chemotherapy, paving the way for personalized treatment options. The study also identifies five new subtypes of high-grade serous ovarian cancer, suggesting different treatment strategies may be needed.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalCell·TypeComputational simulation/modeling·DateAug 3, 2023

Study reveals significant difference in cardiomyopathy genes between Black and White patients

Researchers found that African ancestry patients with dilated cardiomyopathy have fewer clinically actionable variants in DCM genes compared to European ancestry patients. The study enrolled 1,198 patients with dilated cardiomyopathy, revealing a racial imbalance in genetic trials for heart failure.

SourceLouisiana State University Health Sciences Center·JournalJAMA·TypeObservational study·DateAug 3, 2023

New photocatalytic system converts carbon dioxide to valuable fuel more efficiently than natural photosynthesis

A joint research team from City University of Hong Kong and collaborators developed a stable artificial photocatalytic system that mimics natural chloroplasts to convert carbon dioxide into methane, a valuable fuel, very efficiently using light. The new system achieved a highly efficient solar-to-fuel efficiency rate of 15%, surpassing...

SourceCity University of Hong Kong·JournalNature Catalysis·TypeExperimental study·DateAug 3, 2023

Unhappy family or trauma in youth leads to poor health in old age

Researchers found that adults who experienced violence, financial stress, or separation from parents as children were more likely to experience physical and cognitive impairments. Adverse childhood experiences can have lifelong consequences, including difficulty walking, carrying out daily activities, and problems with memory.

SourceUniversity of California - San Francisco·JournalJournal of General Internal Medicine·DateAug 2, 2023

Important step toward next-generation probiotics

Researchers at the University of Gothenburg have developed a new strategy for producing oxygen-tolerant probiotics, including Faecalibacterium prausnitzii, which can improve glucose control. The combination of bacteria increased biomass and butyrate production, making it safe for human consumption.

SourceUniversity of Gothenburg·JournalNature·TypeExperimental study·DateAug 2, 2023

People with a hepatitis C cure still face substantial risk of death

A study of over 20,000 patients with a hepatitis C cure found that they have a substantially greater risk of death compared to the general population. Drug and liver-related causes were the main drivers of excess deaths, highlighting the importance of continued support to fully realise the benefits of a hepatitis C cure.

SourceBMJ Group·JournalThe BMJ·TypeObservational study·DateAug 2, 2023

Daily flushing regimen with simple implant may prevent shunt clogs and reduce revision surgeries in patients with hydrocephalus

Researchers at Medical University of South Carolina describe a new, non-surgical approach to managing hydrocephalus by implanting a shunt-clearing device and performing daily flushing. The study shows promising results, reducing revision surgeries and improving patient outcomes.

SourceMedical University of South Carolina·JournalPediatric Neurosurgery·TypeObservational study·DateAug 2, 2023

When D turns to F, quantum matter is A-plus

Researchers have found that certain materials can exhibit D-wave effects, entangled with other quantum states, allowing for efficient coupling at higher temperatures. This breakthrough bridges condensed matter physics subfields and could enable practical applications of quantum computing.

SourceRice University·JournalScience Advances·TypeComputational simulation/modeling·DateAug 2, 2023

Super Radar: Breakthrough radar research overcomes a nearly century-old trade-off between wavelength and distance resolution

Researchers from Chapman University and other institutions developed a new interference radar function that improves distance resolution between objects using radar waves. The technology breaks the trade-off between resolution and wavelength, allowing for high spatial resolution with long wavelengths.

SourceChapman University·JournalPhysical Review Letters·TypeExperimental study·DateAug 2, 2023

Researchers discover a novel pathway that minimizes liver injury during transplantation

Researchers have discovered a novel pathway that minimizes liver injury during transplantation by activating the protective CEACAM1-S version. This protective characteristic is regulated by HIF-1α and can be enhanced using molecular tools and alternative gene splicing, reducing organ injury and improving post-transplant outcomes.

SourceUniversity of California - Los Angeles Health Sciences·JournalScience Translational Medicine·TypeExperimental study·DateAug 2, 2023

Fact-checking can influence recommender algorithms

A Cornell University study found that encouraging fact-checking on Reddit led to a drop in story rank by an average of minus-25 spots, causing stories to be missed by readers. The research suggests that collective efforts to improve information environments can influence algorithmic recommendations.

SourceCornell University·JournalScientific Reports·DateAug 2, 2023

Lockdowns create global appetite for feeding feathered friends

Researchers found a significant increase in global bird feeding interest during COVID-19 lockdowns, with dramatic increases in search terms like 'bird feeder' and 'bird food' across 115 countries. The study suggests that this trend may have implications for avian communities, migration patterns, and biodiversity.

SourceGriffith University·JournalPLOS ONE·TypeData/statistical analysis·DateAug 2, 2023

Researchers find drugs that reduce infant death may lead to long-term health issues

A new study published in The BMJ found that steroid use during pregnancy may increase the risk of short and long-term health issues in infants. Researchers analyzed data from 1.6 million infants and found that full-term babies exposed to corticosteroids had a higher risk of neonatal intensive care admission, respiratory and growth issu...

SourceMcMaster University·JournalBMJ·TypeSystematic review·DateAug 2, 2023

Secondary school students have difficulty identifying bird species

A study by the University of the Basque Country found that secondary school students have limited knowledge of biosphere reserves, marshes, and bird migration. However, students from rural areas and those who participated in primary school bird-related projects showed better understanding of local biodiversity.

SourceUniversity of the Basque Country·JournalInternational Journal of Environmental Research and Public Health·DateAug 2, 2023

New insights on pelvic floor damage after vaginal birth, and new directions for treatment

Researchers at UC San Diego report new direct evidence of atrophy and fibrosis in pelvic floor muscles of women with symptoms of pelvic organ prolapse. They also showed that an acellular injectable skeletal muscle extracellular matrix hydrogel reduces the negative impact of simulated birth injury on rat pelvic floor muscles.

SourceUniversity of California - San Diego·JournalScience Translational Medicine·TypeExperimental study·DateAug 2, 2023

Calculations reveal high-resolution view of quarks inside protons

Researchers used supercomputers to predict the spatial distributions of charges, momentum, and other properties of 'up' and 'down' quarks within protons. The results revealed key differences in the characteristics of the up and down quarks, implying different contributions to the proton's fundamental properties.

SourceDOE/Brookhaven National Laboratory·JournalPhysical Review D·TypeComputational simulation/modeling·DateAug 2, 2023

New method has promise for accurate, efficient soil carbon estimates

Researchers developed a new method to estimate soil organic carbon stocks in agricultural fields, reducing the number of samples needed by 30%. The approach uses doubly balanced sampling and accounts for auxiliary information available in elevation maps, satellite images, and previous surveys. By improving soil sampling efficiency, thi...

Study defines disparities in memory care

A new study from WashU Medicine reveals that patients from underrepresented groups and lower socioeconomic neighborhoods are less likely to receive specialized dementia care. Black patients are also more likely to be diagnosed with advanced-stage dementia, exacerbating healthcare disparities.

SourceWashU Medicine·JournalNeurology·TypeObservational study·DateAug 2, 2023

NUS scientists develop a new class of artificial water channels for more efficient industrial water purification

Researchers have created self-assembling protein-mimics that can selectivity transport water across membranes while rejecting salts, offering a potential solution to improve energy efficiency in industrial water purification. The oligourea foldamers are smaller and more stable than existing artificial water channels.

SourceNational University of Singapore·JournalChem·TypeExperimental study·DateAug 2, 2023

Stalking a silent killer

Researchers aim to treat pancreatic ductal adenocarcinoma by targeting amino acid transporter SLC6A14 and compensatory nutrient scavenging mechanisms autophagy and macropinocytosis. Using alpha-methyl-L-tryptophan and hydroxychlorquine, the study seeks to improve therapeutic outcomes in patients with pancreatic cancer.

An escape signal for the nematode: Artificial intelligence helps elucidate structure of a novel light sensor

A team of scientists has successfully elucidated the structure and function of LITE-1, a biomolecule used by Caenorhabditis elegans to detect danger. The researchers used artificial intelligence to predict the structure of LITE-1, which is a channel protein that forms a pore in the cell membrane allowing charged particles to pass through.

SourceGoethe University Frankfurt·JournalCurrent Biology·TypeExperimental study·DateAug 2, 2023