Studies on zebrafish embryos reveal that the protein Nodal triggers a signaling cascade, allowing cardiac progenitor cells to migrate faster and form an asymmetric heart. The research also shows that another signaling molecule, Bmp, reduces cell migration on the left side of the heart.
Researchers found that different mutations in the same gene may require different treatments for child brain tumors. A new study identified a second-generation BRAF inhibitor that targets specific mutations, offering hope for personalized medicine.
Researchers at the University of Texas Medical Branch have developed a safe and simple Chagas disease vaccine candidate, TcVac3, which shows over 90 percent protection against chronic infection in mice. The potential vaccine could be approved in as few as five years for use in canines, who are reservoir hosts of the disease.
A team from Wake Forest Baptist Medical Center's Institute for Regenerative Medicine has developed engineered ovaries that can sustainably release sex hormones estrogen and progesterone. The bioartificial ovary could potentially replace hormone drugs, offering a more natural approach to hormone replacement therapy.
The Lancet Series reveals significant disparities in male life expectancy between eastern and western Europe, with a gap of over 40 years. Public health policies are also at risk due to EU law's influence from industry and pro-business stances.
A study by the Wellcome Trust found that four out of five mugging victims experienced excessive mistrust and paranoia lasting up to six months after the attack. Factors such as feeling defeated, worrying excessively, and difficulties sleeping increased paranoid fears in victims.
A meta-analysis of 62 studies across 48 different species found that males who stick around to care for offspring are more successful when females are promiscuous. This suggests that males make complex calculations about the benefits and risks of paternal care, and that natural selection favors tolerance in certain situations.
A new portable device can count all five subtypes of white blood cells within minutes, providing an accurate differential and enabling the detection of rare basophils. This technology could improve outpatient monitoring of patients with chronic conditions and bring medical care to remote areas.
Researchers have identified two molecules that can predict which stroke patients are at risk of severe long-term disability. The study found elevated levels of endothelin converting enzyme-1 (ECE-1) and big endothelin-1 (BigET-1) in SAH patients who suffered significant disability.
Researchers at UGA have created a microorganism that can absorb CO2 and generate useful industrial products, including fuel. This discovery could lead to the creation of carbon-neutral fuels from atmospheric CO2, a cleaner alternative to gasoline, coal, and oil.
Three Ludwig scientists - Webster K. Cavenee, Bert Vogelstein, and Robert A. Weinberg - were named Fellows in the inaugural class of the AACR Academy for their pioneering work in cancer research. The recognition honors their contributions to enhancing cancer understanding and accelerating new treatments.
A randomized trial found that chelation therapy with disodium EDTA modestly reduced the risk of a composite of adverse cardiovascular outcomes, but did not support routine use for treatment of patients who have had a heart attack. The study included 1,708 patients and showed no effect on total mortality.
Fossil finds in Africa have shed light on the evolutionary past of penguins, revealing that four species coexisted on the continent five million years ago. Rising and falling sea levels are believed to be responsible for the decline of African penguin diversity.
A new program at the University of Missouri Health Care System is providing support and training for healthcare workers who experience emotional trauma after a patient's death or unexpected decline. The program has been recognized nationally and its effectiveness has been studied in several studies published in top medical journals.
A new center at Northwestern University will study over 200 patients to better understand how language is processed and recovers in healthy people and those with stroke or neurological diseases. The center aims to challenge existing clinical practices and promote treatment options for individuals with chronic aphasia.
Developed for DTRA, EMAPS creates annotated physical maps of areas without GPS coverage, capturing 360-degree photos and sensor readings using lasers and sensors. The system improves upon algorithms for robots and includes human movement allowance, detecting environmental threats and associating critical data with map locations.
Research models estimate post-weaning multi-systemic wasting syndrome (PMWS) costs British pigs up to £84 per pig, with a two-day quarantine and vaccination strategy saving farmers up to £11,500 per year. The disease affects 30% of cases, causing emaciation and death.
A recent study published in Justice Quarterly found that most online activities of gang members are typical of their age group, with a rate of committing crimes or deviant acts online 70% greater than those not in gangs. Gang members use social networking sites and watch YouTube videos as status symbols.
Researchers recommend radiosurgery for treating unruptured AVMs due to its reasonable benefit-to-risk profile. The procedure resulted in AVM obliteration in 62% of patients, with a reduced annual hemorrhage rate compared to left untreated AVMs.
The MAVEN magnetometer will study the planet's magnetic field to infer how the atmosphere evolved, helping answer why Mars became a frozen desert. By measuring sections of the planet's magnetic field, scientists can create a bigger picture of the overall atmosphere and understand its interactions with solar wind.
A recent study published in Language journal reveals that Philadelphia's traditional Southern accent is being replaced by Northern influences. The research analyzed neighborhood speech patterns over a century, finding two major patterns of change and their possible causes related to geographic neighbors.
Researchers study terrestrial water storage data to predict fire activity in the Amazon region months in advance. They find that during high fire years, water storage is below average before the fire season, while in low fire years, it is above average before the dry season.
A research paper published in Academic Medicine highlights the successful development of an infectious disease curriculum, which increased student engagement and improved understanding of course content. The curriculum was piloted in five Boston Public Schools and showed significant improvements in science literacy and critical thinkin...
A recent study found that vitamin D levels in the blood are linked to improved lung function in adults. The study also discovered that people with a history of tuberculosis had lower vitamin D levels, which improved when levels rose.
A study found that azithromycin improved symptoms and lung function in patients with non-cystic fibrosis bronchiectasis, but at the cost of increased antibiotic resistance. The treatment also raised gastrointestinal side effects.
A new model developed by researchers at UCLA uses hormone levels to estimate when the final menstrual period will occur in menopausal women. This could help identify accelerated bone loss and increased cardiovascular risk in the year leading up to the final menstrual period.
Researchers have developed a new method for assessing biodiversity using DNA-soup from crushed-up insects and next-generation sequencing technology. This bulk-collected insect goo reveals diverse and poorly characterized insect communities, even in small areas.
University of Montreal researchers found that metformin reduces the production of inflammatory cytokines, which can lead to pathological inflammation and cancer growth. The study suggests that metformin may slow down the aging process by preventing this chronic inflammation.
A Cedars-Sinai study suggests that certain microorganisms in the gut may contribute to weight gain by allowing individuals to reap more calories from their food. The study found that people with high concentrations of methane and hydrogen gases in their breath had higher body mass indexes and body fat percentages.
A UK study published in PLOS Medicine found that hospital deaths decreased by half between 2005 and 2010, while home and hospice deaths increased. The study attributed this shift to improved end-of-life care initiatives, particularly for single people, the elderly, and those with certain cancer types.
UK scientists are investigating the threat of marine invasive non-native species in the Galapagos Islands, which is being exacerbated by increasing tourism. The team aims to identify new species, assess their potential impact on native ecosystems, and develop control measures to protect marine biodiversity.
A recent study found that stroke patients treated at certified stroke centers are three times more likely to receive clot-busting medication. The research examined hospital discharge data on over 323,000 ischemic stroke patients and found significant improvements in tPA administration at certified primary stroke centers.
A clinical isolate of E. coli resistant to carbapenems has been studied, revealing four genetic mutations that enable the bacteria to survive and multiply despite the presence of antibiotics. These mutations involve changes to membrane proteins, regulatory proteins, and a multidrug efflux pump.
Researchers found large variations in animal responses to alcohol, with some showing robust sensitization and others no change. These findings may lead to better understanding of addiction and development of more effective treatment drugs.
New simulations uncover flaw in using hollow cones to guide energetic electrons to fuel pellets for laser-driven fusion. Researchers at Ohio State University found that thicker cones hinder the process due to neutralizing effect of free electrons in dense plasma.
Research found a significant association between low levels of 5-OH vitamin D and increased risk of gestational diabetes, preeclampsia, and small for gestational age births. Vitamin D insufficiency is common during pregnancy, especially among high-risk women.
Researchers have developed a new sequencing method that reduces bias in measuring biodiversity by avoiding PCR amplification, allowing for accurate estimation of biomass and identification of species. This method was successfully tested on bulk arthropod samples and identified bacteria and insect species with high accuracy.
Researchers found that vitamin D supplements can help control blood-sugar levels in obese youths, potentially staving off Type 2 diabetes. The study, published in the American Journal of Clinical Nutrition, showed a significant decrease in insulin levels despite no changes in body weight or activity.
A study by Southern Methodist University found that fruit flies raised on organic diets performed better on several health tests, including fertility and longevity. The researchers believe the benefits may be dependent on specific foods, which could explain inconsistent results in previous studies.
The NIH has awarded a $1.67 million grant to UT Dallas researchers, led by Dr. Santosh D'Mello, to investigate the connection between histone deacetylase-3 (HDAC3) and Huntington's disease. The study seeks to understand why specific brain cells degenerate in this devastating disorder.
Researchers analyzed 66 Amazon protected areas and found no strong association between deforestation avoidance and RAPPAM scores. However, they discovered a correlation between the absence of land tenure conflicts and successful deforestation prevention.
Youth with type 1 diabetes face increased risk of heart attacks, strokes, blindness, and kidney failure after transitioning to adult care without adequate support. The study found that nearly 80% of individuals had left pediatric care by age 21, highlighting the importance of effective transition planning.
Researchers have identified the long-unknown mating-type genes of Tetrahymena thermophila, a single-celled organism with seven sexes. The study reveals a random process of DNA rearrangements that determines sex in this organism, which may have potential human health implications.
The Solar Access to Public Capital (SAPC) working group aims to standardize power purchase agreements and develop robust datasets to assess performance and credit-default risk. This effort is expected to attract additional investors to the solar asset class, potentially lowering the cost of solar energy.
Researchers found that untreated depression hinders anti-inflammatory effects of exercise and light-to-moderate alcohol consumption. Participants with depression showed no benefit in lowering C-reactive protein levels, despite normal physical activity levels.
Ganetespib shows greater antitumor activity against ALK-positive NSCLC and overcomes crizotinib resistance in mice xenografted with human cancer cells. The drug is effective for treating patients who have become resistant to FDA-approved targeted therapy.
A team of biologists has identified the mating-type genes responsible for determining the sex of cells in the single-celled organism Tetrahymena thermophila. This discovery sheds light on a unique process of DNA rearrangements that leads to randomly determined progeny sex.
New technique allows for direct reprogramming of human cells into nerve cells, opening possibilities for treating Parkinson's disease and other conditions. Researchers at Lund University have made a breakthrough in the field of cell therapy by successfully reprogramming skin cells and support cells into nerve cells.
A recent study by Ohio State University researchers explains how certain plant traits can be passed down through generations without following traditional genetic rules. They discovered an enzyme in corn that targets 'junk DNA' and triggers unexpected changes in gene activity, an example of epigenetics.
Scientists at the University of Pittsburgh School of Medicine have discovered a novel mechanism that regulates the replication of insulin-producing beta cells in the pancreas. The findings, published in Diabetes, provide new insights into how to regenerate beta cells and potentially lead to new therapies for Type 1 and 2 diabetes.
Kevin Zollman, an associate professor at Carnegie Mellon University, has received a $400,000 NSF CAREER Award to investigate the economic factors influencing scientific problem choice and funding incentives. He aims to develop tools for policymakers to evaluate the effectiveness of different incentive systems.
A University of Michigan study found that gay couples establish 'sexual agreements' to prevent HIV transmission, with 80% keeping their agreements. However, only 57% of couples confirm having an agreement, and 50% of those break it, increasing the risk of HIV transmission.
A study published in PLOS Medicine found that young children are more likely to die when their mother is seriously ill, with the highest risk occurring in the months leading up to and following her death. The researchers also discovered a significant increase in child mortality rates if the mother dies of AIDS-related causes.
Researchers analyzed survey data from 200 servers in 18 restaurants, finding that sensitivity to demographic differences predicted service levels. The study highlights the problem of poor service to African-American customers and suggests a solution by promoting tipping norms for specific levels of service quality.
A study by UC Santa Barbara researchers found that mindfulness training can significantly improve reading comprehension, working memory capacity, and ability to focus. The results suggest that mindfulness can reduce mind-wandering and improve performance in tasks requiring attention.
Researchers used hormone levels to estimate when a woman will have her final menstrual period, providing a way to gauge menopause-related bone loss. The study found that levels of estradiol and follicle stimulating hormone can predict the timeline for menopause.
A study by Kathleen Alexander found that climate drives a large part of diarrheal disease and increases the threat of climate change for vulnerable communities in Botswana. Climate change is projected to increase dry season diarrheal disease incidence, while wet season incidence is expected to decline.
Dr. Michael Keidar is researching ways to cut human tissue more efficiently using plasma technology, which could minimize the need for blood transfusions during surgery. His goal is to understand the physics of plasma interaction with living tissue and develop new devices that can safely and effectively cut through human tissues.
A new study finds that brief mindfulness training can improve standardized test scores and working memory capacity by reducing mind wandering. Participants who received mindfulness training showed a significant improvement in accuracy on the GRE and higher working memory capacity compared to those who received nutrition instruction.
A new study found that the standard formula used to calculate LDL cholesterol levels often underestimates accuracy, especially in desirable ranges. Researchers suggest using non-HDL cholesterol as an alternative to assess risk and determine treatment.
The mountain pine beetle's genome has been sequenced, revealing genes involved in tree colonization and potential sex chromosomes. This knowledge could help develop more effective control methods for this devastating pest.
Dr. Alfred Gilman, Nobel laureate and Regental Professor Emeritus at UT Southwestern Medical Center, has been elected an inaugural Fellow of the American Association for Cancer Research (AACR). His work on G proteins has propelled significant innovation in cancer research.
New research from University of Pennsylvania psychologists suggests that changing one's mind about delaying gratification can be a rational decision when the timing of the payoff is uncertain. The study found that people tend to overestimate how long they will have to wait, leading to decreased self-control.
Researchers at the University of Illinois suggest reforming regulatory lists using a science-based process and assessing potential invasiveness. This could lead to better protection for natural areas against invasive species, but may not threaten the development of new biofuels crops.
Research by University of Toronto sociologist Scott Schieman found that men have greater levels of managerial authority and associated benefits, including job autonomy and higher earnings. Women, even when holding equal levels of authority, tend to earn less income.
A randomized controlled trial found that erythromycin significantly reduced pulmonary exacerbations and improved symptoms in patients with non-CF bronchiectasis, but also increased macrolide resistance. The study suggests that low-dose erythromycin may be beneficial for treatment of respiratory disorder in certain patient populations.
A new study found that primary stroke centers administered clot-busting treatment, rt-PA, at a rate of 6.7%, compared to 2.2% at non-certified centers. The use of rt-PA therapy increased by 50% between 2004 and 2009 at PSCs.
A new study published in the International Journal of Obesity found that genetics account for 30% of individual differences in childhood body weight. The research used Genome-wide Complex Trait Analysis to identify genetic variants associated with childhood obesity, providing insights into the 'missing heritability' problem.
Scientists identified how a chicken's genetic make-up affects its signals of fullness, shedding light on why some breeds overeat and affecting reproduction. The study could help develop diets reducing excess growth naturally in birds.
Researchers from NYU College of Dentistry and School of Medicine will explore the role of intestinal microbiota in promoting pancreatic carcinogenesis. The study aims to determine whether endogenous gut bacteria can affect pancreatic oncogenesis and identify potential targets for prevention and treatment.
The complete genomes of three aye-aye lemur populations in Madagascar have been sequenced, revealing genetic diversity and historical separation. The research aims to prioritize conservation efforts for these critically endangered species, which are threatened by habitat loss and fragmentation.
Researchers at Moffitt Cancer Center have developed a small molecule, S31-1757, that inhibits the ability of STAT3 to cause malignancy. This development could impact the treatment of several tumor types, including breast, lung, prostate and others that depend on STAT3 for survival.
A nationwide study found that hospital infections in cancer patients increased by 2.7% per year over a 10-year period, while deaths linked to those infections decreased by 1.3% per year. Socio-demographic factors such as race and insurance status continued to be significant concerns.
Researchers identify key findings in a large-scale study of individuals with int dup(15), including maternal and paternal duplications. The study found elevated levels of GABA and previously unknown sleep problems in affected subjects, providing significant insights into the disorder.
A review of 21 National Comprehensive Cancer Network member institutions found that only four provided nutritional guidelines, while many linked to external sites with inconsistent information. The analysis highlights the need for evidence-based, standardized guidelines on dietary recommendations for cancer patients.
The Lyman Alpha Mapping Project (LAMP) aboard LRO detected mercury and hydrogen in GRAIL impact plumes, which rapidly expanded into space at near-escape velocities. This is a first for LAMP and any previous instrument, as it measures the presence of native lunar atomic hydrogen gas.
Researchers at the University of Pennsylvania have developed a nanotube-based diagnostic device that can detect Lyme disease bacteria in the blood, potentially leading to earlier diagnosis and treatment. The device uses laboratory-produced antibodies to bind to proteins from the organism, providing an electronic read-out of its presence.
A new study links a magnitude 5.7 earthquake in central Oklahoma to wastewater injection, destroying homes and causing widespread damage. The researchers found that the pressure increase triggered by wastewater injection led to the largest earthquake ever recorded in Oklahoma.
A study published in The American Journal of Clinical Nutrition found that consuming a high-protein breakfast significantly improves appetite control and reduces unhealthy snacking in young adults. Eating a protein-rich breakfast led to increased fullness and reduced brain activity controlling food cravings.
Researchers found increased cell proliferation and alpha-cell expansion in pancreases of individuals with Type 2 diabetes treated with incretin therapy, a widely used type of treatment. The study suggests a possible link between GLP-1-based therapies and an increased risk of neuroendocrine tumors.
Researchers at Georgia Institute of Technology and Purdue University developed efficient solar cells using natural substrates derived from trees, enabling quick recycling in water. The organic solar cells reach a power conversion efficiency of 2.7 percent, paving the way for a truly recyclable and sustainable solar cell technology.
Researchers found that mice do not need to learn to vocalize and can produce the same suite of ultrasonic sounds regardless of whether they are deaf or hearing. This discovery points the way to a genetic tool for studying speech and its disorders, shifting focus from learning to genetic mechanisms.
A new membrane developed by researchers at Wits University can effectively separate waste from water, making it suitable for treating pollutants in various processes. The technology has the potential to filter pure water from wastewater produced during mining, oil and gas exploration, and nuclear activities.
A new study by McGill University researchers finds that bone marrow transplantation treatment reduces MS relapse activity by diminishing Th17 cell function. The treatment has been shown to be effective in patients with aggressive forms of MS, providing new insights into the disease's mechanisms.
The mountain pine beetle genome has been sequenced to understand its behavior and adaptability, revealing large genetic variation among individuals. The study also identified genes involved in detoxifying defense compounds and degrading plant cell walls, which could inform future management strategies.
Research suggests that migraines are related to brain abnormalities present at birth and others that develop over time. Cortical thickness and surface area abnormalities were found in regions related to pain processing, with minimal overlap between the two types of abnormalities.
A recent study found that high concentrations of methane and hydrogen in breath are associated with a higher body mass index and percentage of body fat. The presence of the microorganism Methanobrevibacter smithii may contribute to obesity by altering the balance of gut bacteria.
Researchers found that residential property values depreciate nearly 0.1% for each 1% nearer to a brownfield, while increasing in value by the same amount with distance from the site. The study analyzed 6,800 properties and estimated $2.2 million in annual lost property tax revenue.
Two new species of mouse lemurs have been identified by Duke University scientists, one named Anosy mouse lemur and the other Marohita mouse lemur. The genetic analysis reveals that these species are distinct and do not interbreed with other recognized mouse lemur species.
Researchers found moderate evidence supporting the use of sublingual immunotherapy to improve asthma symptoms and decrease medication use by over 40% in treated patients. The treatment also showed promise for reducing symptoms of allergic rhinitis and conjunctivitis, with no reported episodes of anaphylaxis or death.