Researchers developed a magnetic microrobot that can quantify both cell stiffness and traction, revealing new insights into cellular processes. The study found that malignant tumors do not alter their tractions regardless of surrounding tissue stiffness, challenging common perceptions about cancer progression.
A large NIH-supported study found that adults living in rural areas have a 19% higher risk of developing heart failure than those in urban areas. Rural-dwelling Black men face the greatest risk, with a 34% increased risk compared to urban counterparts.
Researchers from McGill University found that changes in sea levels during the Ice Age affected crocodile gene flow, isolating Caribbean and Pacific populations with distinct genetic mutations. The study reveals the resilience of American crocodiles to climate swings and highlights the need for targeted conservation efforts in Panama.
A new research project aims to solve the physics behind excessive bubble formation in electrolysis, a bottleneck in large-scale green hydrogen production. The team will combine numerical simulations and laboratory experiments to develop reliable modelling tools.
A machine-learning analysis of 59 million online posts reveals associations between real-world events and various types of hate speech, including anti-immigration and LGBTQ-related slurs. The study suggests a complex relationship between triggering events and online hate speech, with potential implications for mitigating such speech.
In a breakthrough study, researchers at Münster University revealed that mechanical tearing is the primary mechanism behind neurite pruning in sensory nerve cells of fruit flies. This process, which occurs during development, involves strong body contractions causing stress on fragile neurites, leading to their severance and removal.
An evidence-based fall prevention program implemented in 33 medical units across 8 hospitals reduced non-injurious falls by 17% and injurious falls by 9%. The program resulted in $22 million in savings over a 5-year study period, with a cost of each fall estimated at $62,521.
Engineers and physicians developed a portable, postage-stamp-sized wearable ultrasound device for cardiac imaging. The device measures blood pumping activity in real-time, even during exercise, providing continuous insights into heart health.
A new study found a significant weight loss of 8.8% among participants after six months, with improvements in health and vitality. The approach addresses biological antecedents of food intake and develops intrinsic motivation for behavior changes.
Researchers have developed a mechanically flexible silver mesh that shields electromagnetic interference in the X band while allowing high-quality infrared wireless optical communication. The mesh, made of transparent polyethylene substrate with a grid structure, enables efficient shielding and visible transparency.
Researchers at Vienna University of Technology have explained the distribution of potassium ions on mica surfaces using an atomic force microscope in ultra-high vacuum. The study reveals tiny patterns of ion arrangement, which could improve electronic circuit performance and make mica a suitable insulator for 2D materials.
Researchers from Osaka University have identified a protein called FER1L5 that is crucial for the acrosome reaction, allowing sperm to fertilize eggs. The study found that mice lacking FER1L5 were unable to undergo the acrosome reaction, highlighting the importance of this protein in male fertility.
Global health organization's disease outbreak news has shifted from high-income countries to low- and middle-income countries, with a growing focus on antimicrobial resistance. The study analyzed 23 years of WHO Disease Outbreak News reports, providing insights into changing global threats.
A recent study found that adding just one ounce of walnuts to the typical American diet improves diet quality and increases intakes of under-consumed nutrients. Researchers analyzed data from nearly 8,000 Americans without a history of nut consumption, showing significant benefits for all life stages.
A decade-long study found that a healthy lifestyle, including a healthy diet, regular exercise, and cognitive activity, slows memory decline in older adults. Participants with the APOE gene, associated with Alzheimer's disease, also experienced slower memory loss.
The discovery of Funcusvermis gilmorei, a 220-million-year-old fossil, extends the history of caecilians by 35 million years and fills a gap in their evolutionary history. The fossil shares skeletal features with early frog and salamander fossils, strengthening evidence for a shared origin between caecilians and these groups.
A new study led by the University of California San Diego found that daily walking and moderate-to-vigorous physical activity significantly reduced the risk of developing mild cognitive impairment or dementia in senior women. With each additional 1,865 steps per day, the risk was lowered by 33%, while moderate-to-vigorous physical acti...
A study of seven children with profound immunodeficiency reveals a T95R mutation in the IRF4 gene, leading to an inborn combined immunodeficiency. The researchers found that the mutation affects immune cell development and function, causing the children to produce fewer antibodies and have impaired T cells.
The number of cardiovascular disease-related deaths in the US rose significantly between 2019 and 2020, with Asian, Black and Hispanic populations most affected. The largest single-year increase since 2015 was seen in CVD deaths among these populations, highlighting structural and societal disparities.
An online randomized trial found that exposure to civic education via social media increased support for democracy, political efficacy, and voter registration among young adults in Tunisia. The study suggests that online civic education can be an effective tool in strengthening democratic values and rejecting authoritarian rule.
Concordia researchers analyzed muscle and fat mass data from a large US sample population to find that high levels of fat mass are linked to poorer overall health. While BMI was surprisingly effective in predicting some cardiometabolic outcomes, the study suggests new body-composition phenotypes may be a better predictor.
A recent study published in Frontiers found that recreational runners who use running as a means of escapism, particularly self-suppression, are more likely to develop exercise dependence. In contrast, those who prioritize self-expansion and positive experiences through running tend to have better wellbeing outcomes.
Researchers found that salmon carcasses can cause wildflowers to grow bigger and produce more seeds, shedding light on the impact of climate change on rivers and streams. The study, published in Royal Society Open Science, extends previous knowledge about nitrogen isotopes and their connection to plant growth.
A large observational study found that heart failure risk is 19% higher for adults living in rural areas of the US compared to urban areas, with a significant disparity in Black men. The study highlights race- and sex-based inequities in heart failure risk, emphasizing the need for targeted interventions to prevent heart failure.
Researchers have solved an 80-year-old medical mystery that causes kidney damage in children and can be fatal in babies. They discovered a gene mutation is the primary cause, but found that around 10% of patients without the mutation still experience symptoms.
Researchers uncover mechanism explaining how embryos form larvae or miniature adults, correlating gene activation timing with life cycle evolution.
A study of commercial and Medicare Advantage claims data from 2003 to 2017 found no statistically significant difference in psychosis-related diagnoses or prescribed antipsychotics between states with medical or recreational cannabis policies and those without. The findings suggest continued evaluation of psychosis as a potential conse...
The Hydrogen Epoch of Reionization Array (HERA) team has doubled the sensitivity of its radio telescope array, providing clues to the composition of stars and galaxies in the early universe. The data suggest that early galaxies contained few elements besides hydrogen and helium.
Panelists emphasize the need for better treatment options and increased access to naloxone as overdoses increase dramatically. Community collaboration, fast-tracking vaccine development, and reducing stigma around people who use drugs are also key strategies.
Regulatory T cells suppress self-reactive T cells by controlling protein synthesis, maintaining immune tolerance and preventing autoimmunity. A small molecule inhibitor called RocA also shows promise in mitigating inflammatory responses.
Researchers at Michigan Medicine discovered a gene, ZMYND8, that contributes to the survival of mutant IDH1 glioma cells in response to radiation. Knocking out ZMYND8 renders the cells radiosensitive, offering a new therapeutic avenue for patients.
A 17th-century satire on marriage employs fragments from Elio Antonio de Nebrija's Latin grammar to justify arguments. The study highlights Nebrija's significant role as a Latinist over his Spanish grammar.
Researchers at KAUST have discovered the molecular mechanisms of DNA repair by studying the interaction between two enzymes, Lig1 and PCNA. Lig1 seals nicks in DNA by attaching to a ring-shaped protein called PCNA, which dislodges another enzyme FEN1 to prepare for sealing.
Scientists studied African cichlid fish's lateral line sensing organ to understand cues for collective behavior, which could aid underwater robots. They found that different areas of the lateral line influence swimming patterns in shoals.
A study analyzing São Paulo City's built environment from 2015 to 2020 found that physical activity promoting structures increased, particularly in high-income areas. The growth varied by income level, with lower-income parts benefiting least from new bike paths and sports facilities.
A novel study of 190 hospitals in the US found that missed nursing care is associated with higher odds of bloodstream infections and longer lengths of stay for VLBW infants. Researchers from Penn Nursing stress the need for hospital administrators to address staffing shortages and poor work environments to improve outcomes.
Law students surveyed want climate change education to be included in their studies, emphasizing the need for legal graduates to understand climate constitutional legislation and net zero. Durham University researchers argue that climate change is a niche topic and students are leaving without proper understanding of law's social context.
West Virginia University professors Dana Coester and Joel Beeson are addressing election integrity in Appalachia through a series of nonpartisan workshops, presentations, and screenings. They aim to foster community resilience against disinformation and manipulation, promoting civic engagement among young people.
A novel microneedle patch can immediately stop bleeding after injury, reducing clotting time from 11.5 minutes to 1.3 minutes and bleeding by over 90%. The biocompatible and biodegradable technology promotes rapid blood coagulation and wound closure.
A position paper highlights the intersection of structural racism and ageism in healthcare, highlighting delayed care, exclusion from medical research, and adverse health outcomes. The authors advocate for increasing representation of diverse voices in healthcare policy discussions to promote solutions to these barriers to quality care.
Researchers found abnormal 12-hour gene activity cycles in postmortem brains of patients with schizophrenia. The study identified altered timings of neural connections and mitochondrial function, suggesting potential underlying causes for behavioral abnormalities.
Researchers discovered 'dhaka' pits that stored surface and ground water for the city, managing a stable supply during dry periods. The ancient civilization's innovative approach to water management may offer valuable lessons for modern societies.
Scientists found that chronic stress increases the activity of proopiomelanocortin (POMC) neurons, leading to behaviors such as anhedonia and depression. Inhibiting POMC neuron activity reduced these behavioral changes. The study suggests that POMC neurons play a key role in increasing susceptibility to stress-related behavioral problems.
A study of 1,463 combat-deployed soldiers found significant associations between bullying/hazing and major depressive disorder, PTSD, suicidal thoughts, and substance use disorder. The findings highlight the need for efforts to prevent and address mental health problems among service members.
The 30-year history of metabolic engineering has progressed significantly, enabling microorganisms to efficiently produce chemicals and degrade recalcitrant contaminants. Recent breakthroughs in systems metabolic engineering and data science have driven advancements in sustainability and health.
Researchers at NYU Langone Health identified the genetic basis of VEXAS syndrome in 2020, now estimating its prevalence among US men and women over 50. The study found that approximately 1 in 4,269 American men over age 50 and 1 in 26,238 women may develop the syndrome.
Scientists at Göttingen University have created a novel approach to produce X-ray images in color from a single exposure, eliminating the need for focusing and scanning. This breakthrough method uses an X-ray color camera and a specially structured plate to capture the intensity pattern of fluorescing atoms in a sample.
Researchers have shed new light on viral genome replication machinery, revealing its intricate structure at atomic resolution. The study, published in PNAS, provides essential insights into the assembly, dynamic operation, and potential therapeutic targets of this complex machine.
A large-scale study found IVF-conceived children perform similarly to spontaneously conceived peers in terms of development and education. The research, involving over 400,000 Australian kids, suggests no significant differences in school outcomes between the two groups.
A study found that nearly one in three public health workers experienced nonphysical workplace violence, including threats and bullying, leading to increased risks of depression, anxiety, PTSD, and suicidal thoughts. The more severe the violence, the greater the impact on mental health.
Researchers at Aston University are working with Isterian Biotech to develop small molecule inhibitors targeting transglutaminase 2, a key enzyme in fibrosis. The goal is to stop or reverse pathological crosslinking of proteins that lead to fibrotic diseases such as idiopathic pulmonary fibrosis.
A UK study found that people with type 2 diabetes have substantially higher cancer mortality rates than the general population. Breast cancer mortality in younger women with T2D is rising, highlighting the need for extended screening, better management of diabetes and its complications, and improved cancer treatments.
Researchers propose HYPER model of dark matter with a phase transition that boosts its interaction with normal matter, potentially making it detectable. The new diversity in the dark matter sector highlights an alternative to WIMPs, covering almost the full parameter range of planned experiments.
A newly developed pop-up electrode device can gather in-depth information about individual neurons and their interactions, while limiting potential brain tissue damage. Researchers have designed the device to be stiff upon insertion but flexible afterwards, providing a 3D layout of neurons and brain connections.
A new study finds that many US coastal communities rely on low estimates of sea level rise, omitting high-end scenarios that could result in costly and dangerous underestimates. The study's authors hope to identify and address gaps in how communities use the most recent assessments of sea level rise in their policy decisions.
Researchers used isotopes to fingerprint the sources of sulfuric acid in unique cave systems, revealing a combination of bacterial and thermochemical processes. The study estimated carbon dioxide emissions from cave formation and identified hydrothermal springs as key contributors.
Researchers at WashU Medicine have identified a previously unknown signaling pathway that protects cells from DNA replication stress, which is common in cancer. Targeting this pathway with inhibitors and chemotherapy drugs could make cancer treatments more effective.
A new study by University of British Columbia researchers found that brief exposure to diesel exhaust causes decreased brain connectivity and may impair cognitive performance. The study's findings suggest a link between air pollution and altered brain network connectivity in humans.
A new study suggests TB vaccination could be overall cost-effective in 73 of 105 low- and middle-income countries (LMICs), with potential economic benefits of US $474 billion by 2050. The modeling study, published in PLOS Medicine, found that vaccination could save billions of dollars annually.
SourcePLOS·JournalPLOS Medicine·TypeComputational simulation/modeling·DateJan 24, 2023
Lithuanian researchers have developed an AI system to detect early symptoms of Parkinson's disease using voice data. The study found that patients with early-stage Parkinson's often speak in a quieter, more monotonous tone, which can be difficult to notice by ear.