Researchers have successfully formed human-derived stem cell tissue resembling the retina, a breakthrough that could lead to new treatments for visual impairments. This achievement uses optimized cell culture methods and demonstrates the potential of human embryonic stem cells for regenerative medicine.
New research reveals small planets can form around stars with low heavy element content, challenging previous assumptions. This discovery suggests Earth-like planets may be widespread in the universe, contradicting earlier theories on planetary formation requirements.
The GAVI Alliance has pledged an additional $162 million to control and prevent measles outbreaks in six high-risk countries. The funding will strengthen routine immunisation systems and follows a decision last November to provide over $600 million to tackle rubella through a combined measles-rubella vaccine.
Postmenopausal women who have had a hysterectomy may experience stiffer arteries, increasing the risk of cardiovascular disease. Hormonal changes and decreased estrogen levels after menopause may contribute to this effect.
Researchers found significant differences between global models and measurement data sets, with uncertainties increasing due to a shrinking global network of measurement stations. This study emphasizes the need for better understanding of evaporation, clouds, and precipitation interactions on regional levels.
A Duke University study found that videogamers are not better at multitasking while driving than non-gamers, contrary to popular belief. The researchers measured the performance of 60 undergraduate students on visual tasks and had them answer Trivial Pursuit questions over a speakerphone while driving.
A study found that most older adults (65+) in England cannot safely use pedestrian crossings, leading to social isolation and reduced access to healthcare services. The research highlights the importance of prioritizing safe crossing times for vulnerable populations.
The proposal to test female athletes' testosterone levels for competition eligibility raises concerns about fairness, discrimination, and the reliability of such tests. Stanford scientists argue that there is insufficient evidence to set a benchmark for normal testosterone levels in elite female athletes.
Researchers sequenced exomes of 118 patients with specific neurodevelopmental diseases, identifying numerous disease-causing genes. In approximately 10% of cases, exome sequencing led to the identification of a known disease-causing gene, prompting changes in diagnosis and care for some patients.
A comprehensive census of the microbial make-up of healthy humans identified over 10,000 species of microbes occupying various body sites. The research found unique communities of microbes in every site, with skin hosting the most diverse collection, while teeth and gums had distinct microbiota profiles.
The CHA2DS2-VASc score has been validated in different populations, identifying very low risk patients who do not need antithrombotic therapy. New oral anticoagulants have a greater net clinical benefit compared to warfarin when both bleeding and stroke risks are high.
Global efforts to save women, newborn babies, and young children are not moving fast enough. Despite progress in some countries, many still struggle with high rates of maternal and child mortality.
Researchers have mapped the normal microbial makeup of healthy humans, revealing that nearly everyone carries pathogens but they cause no disease in healthy individuals. The human microbiome plays a vital role in human health and contributes to human metabolism.
The Forsyth team, led by experts in oral and craniofacial microbiology, contributed to the Human Microbiome Project's definition of normal bacterial makeup. The study found that microbes contribute more genes responsible for human survival than humans themselves, with an estimated 360-times more bacterial genes.
A new study published in PLOS ONE reveals a significant correlation between women's domestic work and higher psychological distress. The research, led by Lisa Harryson of Umea University, also found that perceived socioeconomic and gender inequality in relationships can exacerbate this association.
Researchers identified four types of bacterial communities in healthy adults at 10 sites along the digestive tract. They found a core set of metabolic genes present throughout, suggesting common functions needed for bacterial communities living on mucosal surfaces.
Researchers found a high prevalence of sleep apnea (82%) and associated carbohydrate cravings in diabetic patients. The study suggests that sleep apnea is an independent risk factor for self-reported carbohydrate cravings among Type 2 diabetes patients.
Researchers searched for 'knots' in space using WMAP data, finding no signs of cosmic textures. The study places limits on theories producing textures, ruling out most models at 95% confidence.
SpherIngenics is developing a microbead-based delivery method to protect cells from death and migration after injection into damaged tissue. The company has received a two-year Phase II SBIR grant to continue development of the technology, which could reduce treatment costs by eliminating multiple procedures.
Scientists at Scripps Research Institute developed a new chemical-screening method to find anti-HIV compounds targeting the nucleocapsid protein. The method yielded two effective and safe inhibitors with demonstrated anti-HIV activity in cell culture tests, offering hope for the development of new HIV treatments.
Researchers at the Salk Institute found that embryonic stem cells enter a unique, privileged state during early embryo development where specific genes are activated, allowing them to differentiate into any cell type. This discovery may provide insight into how to improve the clinical value of ES cells for therapy.
Researchers at the University of East Anglia have discovered genetic differences between two Cryptosporidium parasite species. This breakthrough enables the development of a new gold standard test to quickly distinguish between the two species, allowing for earlier detection of outbreaks and tracing of their source.
The Human Microbiome Project found that the human body contains trillions of microorganisms, contributing millions of unique protein-coding genes. These microbes play a vital role in human health, enabling digestion and absorption of nutrients, and producing beneficial compounds.
Researchers at UCSB have successfully synthesized a semiconductor material through genetic engineering and molecular evolution. By directing the evolution of enzymes, they created new mineral architectures with unique properties, opening up possibilities for specialized materials.
The study found that non-elderly, lower- and medium-income populations, as well as Hispanics and whites, experienced increased inpatient surgical procedures after Massachusetts health reform took effect. Improved access to outpatient care for vulnerable subpopulations is a key finding of the study.
Researchers found that males vocalize during courtship, with receptive females preferring males associated with playbacks of low-frequency sounds. Females' sensitivity to these sounds varies depending on their sexual receptiveness and hormone levels.
Researchers have identified MDA5 as a key molecule essential for producing interferon to rally virus-fighting cells during certain viral infections. The timing and balance of interferon production are critical in determining the outcome of a viral infection, with prolonged production increasing the risk of autoimmune damage.
Researchers discovered a unique trapping mechanism in Nepenthes gracilis pitcher plants, where raindrops dislodge clinging ants, propelling them into the digestive cavity. This behavior allows for efficient capture of prey without manual intervention.
A Baylor University study reveals that juvenile rats build up a physical tolerance to alcohol but not cognitive impairment. This finding has significant implications for understanding adolescent behavior and the development of alcoholism.
The European Society of Cardiology and the European Heart Rhythm Association will hold a joint Congress annually from 2014 to 2017, featuring four main topics: electrophysiology, devices, non-invasive EP, and basic science. The agreement aims to improve scientific collaboration and quality among cardiac electrophysiology communities.
Researchers from Indiana University have conducted the most in-depth genetic analysis of defense systems used by trillions of micro-organisms to fend off viruses. The study identifies 64 known and 86 novel types of CRISPRs, providing a history of past exposures to outside invaders like plasmids and bacteriophages.
The Human Microbiome Project identified a diverse and abundant microbiota in healthy humans, with varying composition across body sites and individuals. Ethnic/racial background was found to be the strongest association for diversity in the Western human microbiome.
Two studies present findings on racial and ethnic differences in sleep duration, showing white, American-born adults sleep longer than blacks, Hispanics, Indians, and Asians. Research also indicates foreign-born Americans are less likely to report short or long sleep compared to U.S.-born Americans.
Research at the University of Chicago finds that children who excel in spatial skills also outperform their peers in learning the number line and solving math problems. Early spatial learning has been shown to improve geometry skills and boost mathematics performance.
Scientists at UC San Diego created metallic nanocubes that spontaneously organize into larger structures with precise orientations, enabling ultra-sensitive optical sensors and compact optical circuitry. The technique could revolutionize the development of new sensing technologies and optical devices.
A study found that while improved treatment uptake contributed significantly to reduced death rates from coronary heart disease, socioeconomic disparities persisted. The authors call for evidence-based policies to promote healthier diets and address social gradients in risk factors.
Researchers found that ApoE4 gene variant affects brain function in healthy older women, causing changes characteristic of Alzheimer's disease, but has little impact on men. The study suggests a gender distinction in Alzheimer's risk, with implications for risk assessment and experimental avenues for understanding the disease.
Tropical Storm Guchol is consolidating convection and thunderstorms over its low-level circulation center. The storm's slow development is hindered by dry air along its northern edge, resulting in a smaller size.
A new report by Save the Children reveals that global health funding often ignores newborn care, with only 0.1% of official development assistance targeting newborns. The report finds that more than 40% of child deaths now occur in the newborn period, and African families have the highest risk of newborn deaths.
The study found that cultural values associated with sustainability, such as being unselfish and prioritizing social responsibility, are linked to environmentally sustainable behaviors. The researchers observed strong correlations between these values and practices, suggesting that fostering sustainable attitudes can promote behavioral...
A study published in the Journal of the American Medical Association found that male doctors make $12,001 more per year than their female colleagues after adjusting for various factors. This translates to a difference of over $350,000 over a 30-year career.
Researchers at UCI have developed genetically modified mosquitoes that are unable to infect people with malaria. This breakthrough has significant implications for reducing the spread of the disease, which affects over 40% of the world's population and kills nearly 1 million people annually.
Researchers studied people with and without Williams syndrome to gauge emotional response through hormone release. The study found that oxytocin levels increased in response to music, particularly Elvis songs, suggesting a link between the hormone and emotional experience.
A clinical trial found that nevirapine-based treatment was as effective as lopinavir/ritonavir in controlling HIV levels and reducing mortality among African women. The study confirms the affordability and efficacy of nevirapine-based treatment regimens for initial HIV treatment in resource-limited settings.
The method combines three bipartite visual representations of genetic information to explore genetic data and identify novel patterns. The technique is applied to SNPs from individuals with Nigerian and Utah ancestry, revealing associations between SNP frequencies and ancestral origins.
Foster families face significant challenges in building trust and connection with their foster children, according to a new study. The 'Staying Connected' program, adapted for foster families, aims to strengthen relationships through exercises that acknowledge the strengths of the child and provide opportunities for involvement.
A simple point-of-care test has been adopted in six low- and middle-income countries to diagnose syphilis in pregnant women, resulting in over 100,000 screenings and 90% treatment rates. The test has improved health worker job satisfaction and increased the adoption of syphilis screening programs in these countries.
A study found that hospitalization rates for community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) in NYC tripled between 1997 and 2006. The highest rates were seen among men, children, and homeless populations.
Roughly 28% of low-income HIV-positive pregnant women reported depression, with African-American women facing barriers to care due to mistrust and unequal quality of care. Untreated depression poses significant risks to both mothers and fetuses, highlighting the need for targeted screening and treatment strategies.
A study by Temple University found that personalized greetings in emails deter 95% of customers, while product personalization boosts responses to 98%. Researchers suggest using customer data effectively to build trust and drive sales.
The study found that the voluntary sector accounts for 5% of the UK's workforce, with London and the South East having a significant concentration of third sector employment. The region's share of third sector employment is less in areas considered disadvantaged.
A new study finds that nearly half of infants who survive GBS meningitis experience developmental delays, with 56% having age-appropriate development and 19% having severe impairment. Long-term follow-up evaluations are crucial to identify subtle developmental delays and address them early.
Research studies presented at the American Society of Clinical Oncology meeting showed promising advances in targeted therapy for various cancers. Additionally, clinical trial results indicated that intermittent hormonal therapy may shorten survival for certain prostate cancer patients while improving quality of life.
Research suggests that giant volcanic eruptions in Nicaragua over the past 70,000 years temporarily thinned the ozone layer by releasing bromine and chlorine gases. The team used a novel method to estimate gas content in lava rocks and combined it with existing data to calculate potential ozone layer depletion.
Scientists have found that woolly mammoths' extinction was caused by a combination of climate warming and habitat change, with human-induced climate change mirroring the same pressures. The researchers used radiocarbon dating to create detailed maps of changes in plant species, forest development, and human settlements over time.
The article highlights the importance of methods for ensuring independence in trial analysis and clearly defined early stopping guidelines. However, issues around liability for data monitoring committee members remain unclear.
The Damon Runyon Cancer Research Foundation awarded $3.3 million to eight promising young clinical investigators, focusing on breast cancer and brain tumors.
A new study suggests that women carrying twins should aim to give birth at 37 weeks, as this reduces the risk of serious complications. Babies born early were found to be less likely to be small for their gestational age compared to those born later.
JoVE has standardized pre-surgical steps for eye surgery through video publications, standardizing corneal transplant procedures to minimize waste and risk of tissue rejection. The articles describe simplified techniques for harvesting cornea and retina, as well as critical steps in keratoplasty and endothelial keratoplasty.
A study by researchers from TU Delft and the University of Groningen found that contemporary body-powered prosthetic hands perform equally or less well than those from 1987, with insufficient grip strength required to operate them. The study suggests that user overload problems may be a result of excessive operating force, highlighting...