A study by the University of Colorado Boulder found that nap-deprived toddlers show more anxiety, less joy and interest, and poorer problem-solving skills. Insufficient sleep alters their facial expressions, making them respond less positively to exciting events and more negatively to frustrating ones.
Research reveals that aging-related tissue degeneration is caused by defects in energy metabolism of tissue stem cells. Early antioxidant treatment may partially prevent these defects, indicating a key role for oxygen radicals in regulating stem cell function.
A new study suggests that climate models may grossly underestimate future extinctions by neglecting species competition and movement. Animals with small geographic ranges and specific habitat needs are likely to go extinct, while those with wider tolerances will thrive.
Scientists at the University of Pittsburgh School of Medicine have discovered that injecting stem cells from young, healthy animals into rapidly aging mice can improve their health and increase their lifespan. The study found that stem cell dysfunction is a major contributor to the aging process.
A new $1.2 million grant will fund research and teacher training for doctoral students at the University of California, Riverside, focusing on students with disabilities. The program aims to improve reading skills and comprehension among low-skilled students, including English language learners.
Researchers found that hydrogen sulfide decreases the production of scarring proteins in kidney cells exposed to high glucose levels. The study paves the way for future research in animal models of diabetic kidney disease.
Conservation researchers at San Diego Zoo Global's Institute of Conservation Research have developed a low-cost, molecular tool for identifying two-toed sloth species. The technique uses a mitochondrial marker and restriction enzyme assay to distinguish between closely related species.
A study of over 14,000 Medicare patients with peripheral arterial disease found that treatment by interventional radiologists results in better patient outcomes and lower costs. The study suggests that consumers have a choice in selecting healthcare providers and can expect varying levels of quality and cost depending on the specialist
The University of Louisville has introduced a new transcatheter aortic-valve replacement (TAVR) procedure to treat severe aortic stenosis, allowing patients to avoid traditional open-heart surgery. The procedure involves implanting a biological valve through a catheter and expanding it with a balloon.
Researchers have identified a 90% accuracy biomarker that increases the risk of developing Alzheimer's by 10 years. Patients with low levels of beta-amyloid and high tau protein levels are at highest risk, indicating potential therapeutic targets for early intervention.
A new species, Solanum baretiae, has been named in honor of Jeanne Baret, a Frenchwoman who disguised herself as a man to work on a historic botany expedition. The species is endemic to southern Ecuador and northern Peru, reflecting Baret's adventurous spirit.
Researchers have identified a crucial role for FGF20 in the development of the mouse inner ear, revealing a potential target for regenerating outer hair cells and treating human deafness.
Researchers at Michigan State University used advanced DNA testing to confirm the presence of brucellosis in skeletal remains from medieval Albania, suggesting the disease was endemic in the region since the Middle Ages. The findings provide valuable insights into the history of infectious diseases and their impact on human health.
A study by University of South Florida researchers found that elevated levels of an amyloid precursor protein fragment in the blood may explain aberrations in immune cell populations and function. The findings suggest that the protein fragment could be both a biomarker for autism and a new research target.
A UCSF-led study found that children with biliary atresia who received maternal liver grafts had a failure rate of 3.7%, compared to 10.5% for paternal grafts. The researchers believe higher levels of maternal cells may establish tolerance and acceptance of maternal organs.
Fourteen teams from the UK, Canada, Netherlands, and US have been awarded over £3 million to develop innovative humanities and social science research using large-scale data analysis. The projects focus on applying computational techniques to understand population databases, digitised newspapers, and medieval charters.
Studies found that p53 activation in fat tissue accelerates insulin resistance in heart failure patients. Researchers hope to develop an anti-aging therapy targeting inflammation without compromising tumor-fighting abilities.
A new study suggests that home monitoring strategies, including self-care, phone calls from nurses, and telemedicine, can effectively track heart failure disease-management and early identification. The authors recommend a multi-pronged approach, combining monitoring with patient follow-up and feedback to improve outcomes.
The FGF20 gene is required for proper development of the mouse inner ear, and its inactivation leads to a loss of outer hair cells. Researchers found that FGF20 signaling must occur on or before day 14 of embryonic development to produce a normal inner ear.
A study of 25 healthy individuals found that consuming a low-protein diet resulted in less weight gain compared to normal and high protein diets, with calories alone contributing to an increase in body fat. Protein intake also affected energy expenditure and lean body mass.
LSUHSC researchers found that the ISG15 pathway triggers a cellular defense system that disrupts normal cytoskeletal function and increases cancer cell metastasis. This discovery provides a novel therapeutic target for future drug discovery and has important implications in other cancers.
A new study by NHM entomologist Dr. Brian Brown and others reveals the tiny but deadly phorid fly poses a significant threat to North American beekeeping. The research sheds light on hive abandonment behaviors seen in Colony Collapse Disorder, potentially providing a partial explanation for these catastrophic losses.
A new study by Yale researchers found that measuring patient deaths over a 30-day period, rather than just during initial hospitalization, provides a more accurate assessment of hospital quality. This approach reveals significant differences in quality between hospitals and favors those with shorter patient stays.
Researchers at the University of Pittsburgh have created a new class of highly porous materials that can efficiently store large amounts of drug molecules or gas molecules, such as carbon dioxide or methane. This breakthrough has significant implications for alternative energy and the pharmaceutical industry.
Recent Mayo Clinic studies identify risk factors for rising liver cancer cases, including hepatitis C infection and fatty liver disease. The studies suggest that screening for hepatitis C could improve treatment and survival rates for affected populations.
A new technique developed by Cardiff University scientists may help predict which IVF embryos are most likely to result in a successful pregnancy. By analyzing the internal movements of eggs, they hope to improve IVF success rates and reduce the number of multiple births.
Researchers assigned distinct aspects of visual information processing to each side of the brain, revealing a division of labor between left and right hemispheres. The left hemisphere processes external physical input, resolving into a 'grey scale', while the right hemisphere makes final decisions on face recognition.
Research in songbirds reveals glial cells and synapses can produce estrogen, a hormone linked to neurodegenerative diseases. This discovery could provide new insights into the prevention and treatment of conditions like Alzheimer's and Parkinson's.
A new study shows that targeting a specific microRNA, miR-221, can prolong the lives of mice with human liver cancer. The treatment also boosted activity of tumor-suppressor genes in these animals.
Researchers identify CCL5/CCR5 interaction as key to recruiting endothelial progenitor cells for wound healing. Mice with faulty CCR5 show delayed healing, suggesting similar issues in humans with CCR5 mutations.
A team of scientists from Boston University School of Medicine has identified a novel compound that inhibits viruses from replicating, including poxviruses such as Monkeypox. The compound works by inactivating an essential piece of virus machinery, preventing the virus from amplifying itself.
A new research study published in The FASEB Journal suggests a simple blood test can predict fetal gender as early as the first trimester. The test measures the ratio of enzymes DYS14 and GAPDH in maternal plasma, indicating if the baby will be a boy or girl.
Research published in the Journal of Leukocyte Biology suggests that high levels of estradiol prior to ovulation weaken the immune system, increasing susceptibility to infection. This natural dip in immunity may allow spermatozoa to survive and fertilize an egg successfully.
Researchers found that GABA interneurons initially form many tentative connections, which are later pruned back by a mechanism triggered by GABA. This process helps refine neural networks and eliminate incompatible contacts.
A study found that US patients treated for acute heart attacks were more likely to be readmitted within 30 days due to shorter hospital stays. This may be attributed to the US healthcare system's episodic care approach, which can lead to inadequate management of patients after discharge.
Researchers found that high-contrast bingo cards enhance thinking and playing skills for individuals with cognitive difficulties and visual perception problems caused by dementia. Boosting contrast also enables people with dementia to move safely around their homes and improve eating habits.
Researchers found that bat brains process echolocation and social calls in a lateralized manner, with the right hemisphere handling navigation and the left hemisphere processing communication sounds. This study provides insights into the neural basis of sound processing and may lead to new treatments for human communication disorders.
Researchers at Cardiff University have secured a £2M MRC Programme Grant to investigate the potential of a calcium-like molecule in protecting against enzymes that trigger pancreatitis. The team aims to better understand stellate cells, which may be the link between chronic pancreatitis and pancreatic cancer.
A study of 2,010 obese participants found that bariatric surgery was associated with a reduced incidence of cardiovascular deaths and events. The surgery group had lower rates of fatal heart attack deaths, stroke events, and total cardiovascular events compared to the control group.
A recent study analyzing data from over 15 countries found that US heart-attack patients are more likely to be readmitted to the hospital within 30 days compared to patients in other countries. The study identified factors associated with readmission, including multivessel coronary artery disease and baseline heart rate.
A collaborative study by New Jersey stroke specialists has developed a bedside clinical evaluation to detect spatial neglect, a hidden disability that impedes recovery after stroke. The study found that psychometric assessments may be used to identify specific motor-exploratory deficits in spatial neglect.
A team of scientists has discovered communities of previously unknown species on the seafloor near Antarctica, clustered in hot, dark environments surrounding hydrothermal vents. The findings include new species of yeti crab, starfish, barnacles, and potentially an octopus.
Researchers discovered an agent, PEDF, that suppresses brain metastatic activity and shields the brain from tumor-induced damage. This finding represents a significant step forward in managing brain metastases, a major challenge in cancer treatment.
The Oregon Health & Science University's Physician Orders for Life Sustaining Treatment (POLST) program has expanded to 34 states and improved end-of-life care outcomes. The program provides a comprehensive set of medical orders based on patient preferences, ensuring accurate treatment with a high degree of accuracy.
Researchers analyzed the whole-genome sequences of two supercentenarians, aged over 114 years, and found a mix of common and rare genetic variants. Despite carrying many disease-associated genes, they lived exceptionally long lives, suggesting other protective mechanisms are at work.
Researchers propose that manganese is essential for calcium absorption and its depletion may lead to osteoporosis. The study suggests a link between manganese deficiency and conditions like Alzheimer's and Parkinson's disease, highlighting the importance of maintaining bone health in relation to brain function.
Scientists identify chemokine CCL5 as a crucial signal for endothelial progenitor cell recruitment in wound healing. Meanwhile, researchers discover CBX7 acts as a tumor suppressor, regulating cell growth and preventing cancer progression. Additionally, zinc deficiency is linked to severe skin inflammation due to impaired immune functi...
The American Thoracic Society has recommended that critical care research become less fragmented and account for patient heterogeneity. Key areas of focus include basic science, translational research, clinical research, health service delivery, and education.
The new electrocatalysts have high activity, stability, and durability while containing only about one tenth the platinum of conventional catalysts used in fuel cells. This reduction leads to lower costs and environmental benefits by producing no harmful emissions.
Researchers at San Francisco State University have discovered a fly parasite in honey bee hives, which may help explain the mysterious phenomenon of colony collapse disorder. The parasite, found only in California and South Dakota, causes bees to abandon their hives and behave 'zombie-like'.
Researchers at Texas A&M University have developed a way to control the formation and dispersal of biofilms by manipulating bacterial signals. This breakthrough enables the creation of novel bioreactors that can efficiently produce chemicals and potentially transform the economy.
A recent study in the journal mBio challenges the unique E. coli protein YfeX's role in iron acquisition, finding it lacks catalytic ability to dechelate iron from heme. Meanwhile, researchers discover an unprecedented level of transference of resistance among strains and species of bacteria via plasmids containing carbapenemase genes.
A study in Cell Metabolism identifies serum response factor (Srf) as a crucial signal that tells surrounding muscle stem cells to multiply and join muscle fibers, controlling muscle growth. SRF's role in regulating muscle atrophy is also confirmed, with potential applications for therapies targeting its targets.