The report analyzed outcomes of 26,414 TAVR procedures performed from 2012-2014 and found low risk for mortality, myocardial infarction, kidney injury, and neurologic complications. The most common complications were vascular and bleeding requiring transfusion, with a decrease in vascular complications over time.
A recent study published in Psycho-Oncology found that women with breast cancer who develop depression are at a 45% higher risk of death from all causes. The study suggests that targeted support for these individuals could improve survival rates and quality of life.
A new study reveals that fluctuating food supplies and competition can alter survival of adult fish and cause populations to fluctuate in abundance. The research found strong interactions between the amount of food and the survival rate as well as the number of fish, with more fish leading to less survival due to competing for limited ...
Postmenopausal African American women who use female hormone supplements containing estrogen and progestin are at a 50% increased risk of estrogen receptor positive breast cancer. The study found greater increases in risk for recent and long-term users, highlighting the importance of limiting combination therapy.
A new study by researchers at the University of Texas at Arlington found that straight women place more trust in gay men's dating advice due to fewer ulterior motives. Women are also more likely to form close friendships with gay men in competitive dating environments.
Researchers at TSRI identified a mutant protein's incorrect interactions with other cellular neighbors, which disrupted its normal function. By removing these interactions, they partially restored the protein's normal function, suggesting new therapeutic targets to treat cystic fibrosis.
The James Webb Space Telescope's 'Pathfinder' telescope completed its second super-cold optical test, using specialized equipment to simulate star images and perform end-to-end testing. The successful test demonstrates the ability to optically test and align the telescope at planned operating temperatures.
The James Webb Space Telescope has received its first mirror installation, with 18 primary mirror segments scheduled to be installed by early next year. The mirrors are made of ultra-lightweight beryllium and must remain precisely aligned in space for successful science investigations.
A rare fossil from eastern North America of a dog-sized horned dinosaur has been identified by a scientist at the University of Bath. The discovery highlights an east-west divide in North American dinosaur evolution, suggesting that dinosaurs in Appalachia evolved differently from those in western North America.
The 13th biennial Congress of the International Xenotransplantation Association showcased significant breakthroughs in xenotransplantation, including the survival of cardiac, kidney, and pancreatic islet cell xenografts for extended periods. New technology to improve animal donor safety was also presented.
A study using fMRI found that individuals with ASD exhibit different neural activity patterns when viewing emotional faces compared to typically developing participants. This suggests that ASD is not a uniform condition and may be linked to differences in how the brain processes emotional stimuli.
Birkar, Cascini, Hacon, and McKernan's 2010 article on minimal models for log general type varieties revolutionized algebraic geometry research. The work transformed the minimal model program, marking a watershed in the field and earning them the prestigious AMS Moore Prize.
A Phase II randomized, placebo-controlled study found that taking estriol along with conventional medications helped RRMS patients avoid relapses. Estriol treatment improved cognition and prevented brain atrophy, potentially providing a one-two punch against the disease.
Researchers propose astrophysical explanation for discrepancies between molecular clock and fossil record, suggesting increased cosmic radiation accelerated mutation rates. The hypothesis predicts that organisms in deeper ocean layers will show less disparity between the two methods.
Researchers found that BRCA1 depletion impairs brain cell function and contributes to cognitive decline in Alzheimer's disease. The study suggests that therapeutic manipulation of BRCA1 may prevent neuronal damage and cognitive decline in patients with Alzheimer's disease or at risk for the disease.
Researchers used Statistics Canada's Vital Statistics death database to estimate opioid-related deaths, finding high specificity and reliability. The study provides a new tool for national surveillance of prescription opioid-related deaths in Canada.
A study by University at Buffalo researchers found that testosterone replacement therapy increases insulin sensitivity and reduces body fat in Type 2 diabetic men. Testosterone treatment also improved muscle mass and expression of genes that mediate insulin signaling.
Scientists have successfully simulated 3D models of deep jet streams and storms on Jupiter and Saturn, revealing their dynamics and providing clues to Earth's weather patterns. The study helps clarify the origin and behavior of these features, which remain debated among researchers.
A network of immune cells helps the appendix maintain digestive system health by preventing damage and inflammation during bacterial attacks. This discovery suggests the appendix may be more relevant to our health than previously thought, potentially even serving as a natural reservoir for 'good' bacteria.
The Canadian Task Force on Preventive Health Care recommends against screening older community-living adults for cognitive impairment if they are asymptomatic. However, physicians should investigate patients or their family members expressing concern about possible memory loss.
A study found that concussed football players had reduced cerebral blood flow even after clinical recovery, suggesting a role for MRI in determining when to allow them to return to competition. This technology may provide a more objective measurement of recovery and help prevent second injuries.
A recent study published in Frontiers in Earth Science found that climate change is likely to increase the input of black carbon to the Arctic Ocean. The team, led by University of Georgia Skidaway Institute of Oceanography scientist Aron Stubbins, discovered that black carbon stored in Arctic soils is being exported to the oceans.
Researchers analyzed data from a study of over 4,500 individuals with episodic migraine, finding that those with coexisting asthma were more likely to develop chronic migraine. The study suggests that inflammation and shared environmental factors may contribute to the link between asthma and chronic migraine.
Researchers found Activin-A as a candidate drug target for treating Fibrodysplasia ossificans progressive (FOP), a genetic disease where bone grows in soft tissue. The study uses induced pluripotent stem cells and suggests that inflammation could be the key to preventing diseased bone growth.
A new study by Rice University social scientist Erin Cech dispels the idea that women choose more flexible career fields due to plans to raise children, while men opt for provider-friendly roles. Most students did not consider their future family plans when making career decisions.
Researchers have pinpointed an area of the brain that links anxious temperament to low social status. High-anxious individuals perform poorly in social competition, leading to social subordination. Pharmacological manipulation of mitochondria may influence social rank.
A Sam Houston State University study found that mothers in abusive relationships are four times more likely to report threats against their children during the separation process. This indirect abuse can occur even after the relationship has ended and is a means for abusers to control victims.
A new article by Amitai Etzioni argues that US freedom of navigation operations (FONAs) can be overly aggressive and escalate into dangerous clashes with nations. FONAs operate on a limited budget and are often used as a fallback option after diplomatic efforts fail.
A new study by researchers at the University of Maryland School of Medicine suggests that air evacuation may worsen neurological function and increase brain cell loss in patients with traumatic brain injuries. The study's findings have major implications for the treatment of military injuries.
A team of researchers discovered how a new anti-leukemia drug, JQ1, works by inhibiting BRD4 and causing the NSD3-short protein to 'fly apart', disrupting cancer cell growth. The NSD3-short protein acts as an adaptor protein, coupling BRD4 to CHD8, and has four distinct functions necessary for AML cells to thrive.
Patients at safety-net hospital clinics with high clinician computer use were less likely to rate their care as excellent, and clinicians engaged in more negative rapport building. The study highlights the potential drawbacks of implementing electronic health records in these settings.
New research from Duke University's Sanford School of Public Policy found that income-based school assignment policies in Wake County increased segregation, but those in other large North Carolina districts experienced less diversity and declining test scores for black students.
A new study published in the American Journal of Respiratory and Critical Care Medicine found that critically ill patients experience significant bone loss, increasing their risk of fragility fractures. The researchers suggest that anti-resorptive therapies may be necessary to prevent bone loss in these patients.
Researchers used supercomputer simulations to understand how magnetic fields amplify in collapsing stars, enabling jets that power supernovae and gamma-ray bursts. The study found a dynamo process creates large-scale fields needed for these explosions.
A fruit fly model of Alexander disease has been developed to study astrocyte dysfunction and its role in neurodegeneration. Nitric oxide has been identified as a critical mediator in the process.
Researchers found that establishing up to three supervised injection facilities in Toronto and two in Ottawa would be cost-effective, with an 86% chance in Toronto and a 90% chance in Ottawa. The new analysis took into account recent treatment options for hepatitis C and the speed at which drugs would be rolled out.
Researchers found that moving from forest to urban habitats affects epigenetic patterns of the immune response, while historical lifestyles impact development and physical characteristics. These findings suggest a significant influence of environment on epigenetics and potential risks for autoimmune diseases.
A study published in Nature Neuroscience found that genetic variants associated with schizophrenia were enriched for changes in DNA methylation in the developing brain. The research team identified potential implications for understanding the origins of schizophrenia and other neurodevelopmental disorders.
A new study offers insights into how ovarian cancer grows, revealing a patterned hierarchy of cancer stem cells. The research identifies a key protein, BMP2, that regulates the growth of these stem-like cells. Targeting this protein could lead to more effective therapies for ovarian cancer.
Cities are facing bigger challenges than ever before, including rural-urban migration, optimizing housing conditions, health and education. Digital technology has the potential to overcome many of these challenges, but concerns remain around privacy and cybersecurity.
A study by Cincinnati Children's Hospital Medical Center found that hospital-to-home transitions can cause mental exhaustion, emotional toll, and uncertainty among family caregivers. The researchers identified a need for in-home follow-up visits, telephone calls from nurses, and enhanced care plans to improve the transition.
A study by University of Bath researchers found that reducing the minimum trading unit from one share to one share increased retail trader participation and reduced transaction costs. The change led to a substantial improvement in market quality, with a 10.2% decrease in bid-ask spread on average.
A genetic study of 35,000 patients with inflammatory bowel disease (IBD) reveals new insights into disease progression and severity. The research suggests that IBD may be an array of bowel disorders, rather than a single condition, and could lead to more effective treatments if identified early.
Researchers at Stanford University School of Medicine have identified a gene that appears to reduce the risk of heart failure and improve treatment outcomes. The gene codes for a protein involved in regulating sleep, appetite, and blood pressure, which may play a protective role in the heart.
Researchers at UC San Diego School of Medicine discovered a specific group of proteins decrease, triggering changes in the cancer microenvironment and accelerating growth of therapy-resistant CSCs. A targeted monoclonal antibody treatment effectively impaired CSC regeneration and made them easier to target with existing therapies.
The NIST robot, CROMMA, measures antenna properties with high precision and configurability, enabling faster and more accurate measurements of antennas for advanced communications, remote sensing, and imaging systems. The system uses near-field scanning technology to determine antenna gain, polarization, and pattern at long distances.
French physicists develop a novel understanding of foam flow in a wedge-shaped channel, identifying connections between plastic events and deformation rates. This study has implications for further research on liquid foam properties and their impact on mechanical energy absorption.
Researchers identified highly resistant bacteria in 23 of 500 acute care hospital admissions from nursing homes, with a feeding tube associated with gastrointestinal carriage. This study emphasizes the importance of hospital and nursing home infection control measures to prevent the spread of antibiotic-resistant bacteria.
A study published at the Radiological Society of North America meeting found that ultra-distance running causes significant degradation in knee and ankle cartilage, but also enables its regeneration. The researchers used a mobile MRI scanner to track 44 runners over 64 days, revealing no distance limit for joint cartilage damage.
A three-year project is launching to investigate neural network mechanisms of sequence generation in the hippocampus. The researchers aim to shed light upon the neuronal foundations of memory, a brain structure crucial for remembering personal experiences.
A 15-year study found that high summer air temperatures have a significant impact on Eastern brook trout populations, particularly on the smallest fry and eggs. The researchers predict that if climate warming proceeds as projected, these fish could become extinct in 15 years unless they evolve to adapt.
A newly discovered mechanism in worms suggests that mothers sacrifice their health for future generations, fueling egg cell development with fats. This phenomenon raises the possibility of a similar trait in humans, potentially impacting reproductive success and lifespan.
A recent Yale University study found that black women with stage I-III cancer are less responsive to neoadjuvant chemotherapy compared to other racial groups. Despite presenting with more advanced-stage and aggressive tumors, the findings suggest biologic differences or disparities in treatment may be contributing factors.
Recent studies found that Latino immigrant youth who reported feeling discriminated against had more depressive symptoms and were less likely to perform altruistic behaviors six months and a year after experiencing discrimination. The study suggests that discrimination can lead to mental health issues and decreased social engagement.
TGen and Barrow researchers identified rare genetic changes associated with stress-triggered heart disease, a condition previously referred to as 'broken heart syndrome.' The study's findings may help guide care and treatment before and after patients experience a life-threatening stressor.
A new study evaluates mechanisms driving diversity in bone function, providing insight into the evolution of tetrapods and their transition to land. The tiger salamander's unique anatomy and ecology make it an ideal organism for studying this process.
Researchers at Georgia Tech use ribosomal RNA to trace life's evolution, finding molecular structures and events near the biochemical origins of life. By analyzing variations in ribosomal RNA, they uncover secrets of creation and answer foundational questions about life's origins.
A recent study found that global warming can reduce the effectiveness of permethrin in killing yellowfever mosquitoes. As temperatures increase, permethrin's efficacy decreases, highlighting the need for temperature consideration when choosing a pest-control product.
A new study finds that malaria risk in Africa is shifting due to climate change, with the highest-risk transmission zone moving eastward and expanding into new areas by 2080.
A supercomputer simulation demonstrates that a collapsing massive star can generate enormous magnetic fields, focusing gas along the rotation axis to create jets producing oppositely directed blasts of highly energetic gamma rays. This breakthrough model sheds light on the process behind hypernovae and gamma-ray bursts.