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Science News Archive October 2021 - Page 5


Page 5 of 40

UTSW scientists identify protein that stops cell cycle in response to stress

Researchers at UT Southwestern Medical Center have identified a protein called Xbp1 that plays a crucial role in halting the cell cycle in response to stressful events. The study uses innovative techniques to track proteins in individual cells over time, revealing a previously unrecognized function of Xbp1 in regulating the cell cycle.

SourceUT Southwestern Medical Center·JournalJournal of Cell Biology·DateOct 27, 2021

New study finds potatoes, when enjoyed as part of a healthy diet, are not associated with elevated heart health risk factors among adolescent girls

Researchers found that moderate potato consumption among adolescent girls did not increase the risk of overweight or high blood pressure, and may even be associated with improved nutrient intakes. The study suggests that potatoes can be a part of a healthy diet pattern, particularly when consumed in moderation.

SourceThe Alliance for Potato Research and Education (APRE)·JournalBritish Journal Of Nutrition·DateOct 27, 2021

Brain connectivity is lower in adults with PTSD or a history of sexual abuse

A study found that adults with a history of childhood maltreatment, particularly sexual abuse, exhibit reduced brain connectivity in attention systems. Oxytocin treatment has been shown to increase connectivity, suggesting its potential as a treatment for PTSD and childhood trauma-related disorders.

SourceMedical University of South Carolina·JournalPsychiatry Research Neuroimaging·TypeExperimental study·DateOct 27, 2021

NYU Abu Dhabi researchers discover new nanobodies that can disable a key SARS-CoV-2 structural protein and disrupt viral replication

Researchers identified two nanobodies that specifically target and stabilize the tetrameric form of SARS-CoV-2 non-structural protein Nsp9, potentially repressing viral replication. These findings suggest a new antiviral strategy for diagnosis and treatment against COVID-19.

SourceNew York University·JournalAdvanced Biology·TypeExperimental study·DateOct 27, 2021

Pyruvate as an essential substance for the survival of neurons and Schwann cells under high-glucose milieu

Researchers found that pyruvate supplementation prevents rapid cell death of peripheral sensory neurons and Schwann cells under high-glucose conditions. Exogenous pyruvate may play a key role in maintaining glycolysis-TCA cycle flux by suppressing PARP activity, thereby supporting cellular viability and energy production.

Vascular disease in COVID-19 is not caused by viral infection of blood vessels

Researchers from the University of Queensland found that COVID-19 causes cardiovascular complications due to inflammation in infected airway cells. The study clarifies a key debate about the relationship between the virus and blood vessel linings, suggesting inflammation as the primary cause of damage.

SourceUniversity of Queensland·JournalClinical & Translational Immunology·TypeExperimental study·DateOct 27, 2021

ASTRO: International meta-analysis quantifies impact of three prostate cancer therapy intensification strategies

A new international meta-analysis of randomized clinical trials found that adding androgen deprivation therapy (ADT) to definitive radiotherapy improves metastasis-free survival by 8% and overall survival by 7%. Prolonging adjuvant ADT for 18-36 months also shows similar benefits.

Model could help archeologists unearth new Pleistocene sites in Cyprus, suggesting that more historic hunter-gatherer activity on Eastern Mediterranean islands than previously suspected

A new model has been developed to help archeologists uncover new Pleistocene sites in Cyprus, revealing more evidence of historic hunter-gatherer activity on the island. The study suggests that there may have been more human activity on Eastern Mediterranean islands during the last ice age than previously thought.

SourcePLOS·JournalPLOS ONE·DateOct 27, 2021

A new type of eco-friendly solvent designed to purify polluted water

A new type of eco-friendly solvent, SUPRAS, has been designed to extract polluting substances from the environment and is more stable under various conditions compared to existing ecological solvents. The solvent uses rhamnolipids produced by bacteria, attracting and separating pollutants with a simple decantation process.

SourceUniversity of Córdoba·JournalJournal of Cleaner Production·TypeExperimental study·DateOct 27, 2021

A sub-nanometer supramolecular rectifier

Researchers designed a sub-nanometer molecular rectifier utilizing destructive quantum interference and asymmetric supramolecular interaction, overcoming electronic functionality challenges. The device achieves rectification behavior at the sub-nanometer scale, enabling potential miniaturization of electronic devices.

SourceScience China Press·JournalScience China Chemistry·DateOct 27, 2021

AI-powered glaucoma screening test delivers rapid results

A new rapid screening test for glaucoma uses infra-red sensors to monitor eye movement, providing accurate results within seconds. The test could help advance early detection of the disease, a leading cause of irreversible blindness, and make it more accessible for national screening programs.

SourceRMIT University·JournalIEEE Access·TypeRandomized controlled/clinical trial·DateOct 27, 2021

A universal law of physiology emerges from University of Toronto professor’s research

Professor Willy Wong has discovered a mathematical relationship in the sensory adaptation response curve that is true for all sensory modalities and all organisms. This finding, supported by 250 measurements of adaptation from different branches of sensory physiology, presents a single, simple equation that holds across all species.

SourceUniversity of Toronto Faculty of Applied Science & Engineering·JournalFrontiers in Human Neuroscience·DateOct 27, 2021

ALS and dementia attacked by an RNA-hunting compound that recruits cell's own virus fighter

A collaboration led by Scripps Research Institute successfully treated C9 ALS/FTD in mice using a novel RNA-hunting compound that recruits the cell's own virus fighter. The compound eliminated 70% of toxic protein fragments and removed most hallmarks of the disease from patient-derived nerve cells.

SourceScripps Research Institute·JournalScience Translational Medicine·TypeExperimental study·DateOct 27, 2021

Multi-algorithm approach helps deliver personalized medicine for cancer patients

A team of researchers has developed an ensemble-based machine learning model that can predict how cancer patients will respond to certain drugs with high accuracy. The model was trained on data from 499 independent cell lines and validated against a clinical dataset containing seven chemotherapeutic drugs.

SourceGeorgia Institute of Technology·JournalJournal of Oncology Research·TypeObservational study·DateOct 27, 2021

New whale species named after Māori whale expert

A new beaked whale species has been discovered and named after Māori whale expert Ramari Stewart, highlighting the importance of Indigenous knowledge in scientific discovery. The species, Mesoplodon eueu, was found in South Africa and features a unique name that reflects its Indigenous roots.

SourceUniversity of Auckland·JournalProceedings of the Royal Society B Biological Sciences·TypeObservational study·DateOct 27, 2021

Four commonly used medications reverse Alzheimer's disease in mice

Researchers have found four commonly used medications that can reverse Alzheimer's disease in mice by addressing the underlying causes of the condition. The study identifies non-steroidal anti-inflammatories and anti-hypertensives as effective treatments, paving the way for early diagnosis and potential therapy.

SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalGenome Medicine·TypeExperimental study·DateOct 27, 2021

Immunotherapy for intractable mutant cancer using a statin, hyperlipidemia drug

Researchers have discovered a novel approach to treat intractable mutant cancer using statins, which selectively kill KRAS mutant cancer cells and activate the immune system. This breakthrough has significant implications for the treatment of cancers with limited options, and may lead to the development of new cancer immunotherapies.

SourceNational Research Council of Science & Technology·JournalJournal for ImmunoTherapy of Cancer·DateOct 27, 2021

Serial radiation therapy is safe and effective as alternative treatment to systemic therapy for kidney cancer

Researchers at MD Anderson Cancer Center reported that serial stereotactic body radiation therapy (SBRT) is a safe and effective treatment for oligometastatic renal cell carcinoma. The study showed promising results, with a median progression-free survival of 22.7 months and minimal toxicity.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalThe Lancet Oncology·DateOct 27, 2021

All about Eve

Researchers developed AI tool EVE to analyze genetic variations, reclassifying 256,000 variants as benign or disease-causing. The tool enhances clinical methods for diagnosis, prognosis, and treatment choice.

SourceHarvard Medical School·JournalNature·TypeComputational simulation/modeling·DateOct 27, 2021

Timing is everything: Stanford researchers reveal why the right sequence of policies is essential to slow deforestation

A new study by Stanford researchers provides a blueprint for public and private interventions to slow deforestation. The study reveals that the right sequence of policies, including disincentives, incentives, and enabling measures, can deliver conservation goals at lower cost across entire at-risk regions.

SourceStanford Woods Institute for the Environment·JournalGlobal Sustainability·DateOct 27, 2021

Genetic risk of mental health conditions may influence where people choose to live, study suggests

A new study suggests that genetic liability to various mental health conditions may affect an individual's choice of residence. The research found higher genetic risks for schizophrenia and bipolar disorder in those who moved from rural to urban areas, while lower genetic risk was seen for ADHD in those who remained in rural areas.

SourceKing's College London·JournalJAMA·TypeObservational study·DateOct 27, 2021

Scientists discover how forest fires influence rain cloud formation in the Amazon

A Brazilian study reveals that forest fires and wildfires modify the freezing process of cloud droplets, altering natural cloud functioning and potentially impacting precipitation. The research used a large dataset to show that aerosols emitted by fires can affect cloud formation in southern Amazonia during the rainy season.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalNature Communications·TypeData/statistical analysis·DateOct 27, 2021

Systemic lupus erythematosus linked to altered gut microbiome

A recent study published in Annals of the Rheumatic Diseases reveals a link between systemic lupus erythematosus and an altered gut microbiome. Researchers at Osaka University identified two species of Streptococcus bacteria significantly increased in SLE patients, which can affect the body's functions by altering plasma metabolites. T...

SourceOsaka University·JournalAnnals of the Rheumatic Diseases·TypeData/statistical analysis·DateOct 27, 2021