Researchers at the University of Rochester have discovered a method to turn metals black using a high-intensity laser burst, allowing them to detect electromagnetic radiation in the terahertz range. This technology has the potential to enable unprecedented diagnoses of diseases by detecting molecular properties of diseased tissues.
Researchers found that xanthohumol, a flavonoid derived from hops, blocks the effects of testosterone and prevents prostate cancer. The study suggests that this compound may have beneficial effects in animals, reducing hormone signaling and gene expression in prostate tissue.
Researchers investigated manometric measurements in patients with isolated distal reflux (IDR) to compare findings in those with erosive esophagitis and non-erosive esophagitis. IEM was observed only in patients with erosive disease, suggesting a potential pathophysiological link.
A Wisconsin statewide blood screening program successfully identified newborns with T-cell lymphopenia, a severe immune disorder. The test, which analyzes DNA from dried blood spots, detected the condition in eight infants and showed promise as a cost-effective method for early diagnosis.
Merkel cells are essential for distinguishing shapes and textures, enabling hand dexterity through the sensory coding of light touch. The discovery confirms these cells are required for this function.
A randomized controlled trial found that high-flow oxygen was more effective in treating cluster headache pain than a placebo, with 78% of patients reporting pain-free relief within 15 minutes. The treatment was also superior for other outcomes up to 60 minutes, with no serious adverse events reported.
Researchers discovered that H1N1 virus retained the bird version of the polymerase but had an additional mutation that allowed it to function in human cells. This new combination increased the virus's efficiency in human cells and could potentially lead to increased virulence and pathogenicity.
Peliosis hepatis, a rare pathological entity, can lead to spontaneous liver rupture, a life-threatening condition that necessitates prompt medical intervention. The case report highlights the importance of considering PH in patients with risk factors, emphasizing the need for early diagnosis and treatment to prevent severe complications.
Researchers found that estrogen stimulates parts of the brain dedicated to learning and memory through a protein called calpain. This discovery may lead to better drugs against Alzheimer's and other neurodegenerative diseases by targeting calpain directly.
Researchers identified significant gaps in HPV vaccine uptake among low-income minority groups, with disparities in knowledge, awareness, and healthcare provider recommendations. Tailored interventions are necessary to address these barriers and increase vaccination rates.
A study by Penn State researchers used a computer model to compare senators' voting records to their floor statements on issues. The findings showed that legislators tend to use nouns and adjectives that signal their voting patterns. Future research could include building automated programs to analyze real-time data.
Researchers at Tufts University have discovered how the parasite Trypanosoma cruzi prolongs its life in human host cells by activating anti-apoptotic molecules, enabling it to evade death. This study provides new insights into the mechanisms behind Chagas' disease.
A groundbreaking study published in the journal Pain reveals that humans have a unique sensory system located in blood vessels and sweat glands, which can provide conscious tactile information. This discovery may contribute to understanding mysterious pain conditions such as migraine headaches and fibromyalgia.
North Carolina State University's College of Veterinary Medicine requires all students to receive disaster training, enabling them to respond to the needs of both people and animals in the wake of disasters. This comprehensive program equips veterinarians with advanced state and federal disaster certifications.
A new study led by the University of Michigan reveals that polar bears get their nutrition from two main food webs: phytoplankton-based and ice algae-based. The research found that those who primarily eat phytoplankton have higher mercury concentrations, highlighting the importance of understanding Arctic ecosystems.
Archaeological evidence supports the idea that maize was adopted by Southwestern hunter-gatherers through group-to-group transmission. The researchers' scenario proposes an early (7,000 B.C.) north-to-south movement of Proto-Uto-Aztecan hunter-gatherers, followed by division into northern and southern Uto-Aztecan-speaking groups.
Scientists have ruled out meteorites as a source of methane on Mars, raising hopes that the gas might be generated by life on the red planet. Methane levels are replenished by an unknown source, with two plausible theories remaining: microorganisms producing methane as a by-product or reactions between volcanic rock and water.
A study found that 22.3% of dialysis patients receiving percutaneous coronary intervention (PCI) received contraindicated antithrombotic medications, leading to increased rates of in-hospital major bleeding and death. The researchers emphasize the need for educational efforts targeting clinicians and quality improvement interventions.
Researchers found that bone marrow cells can significantly reduce the risk of death or another heart attack in patients who have had a heart attack. The treatment, known as progenitor-cell therapy, showed benefits for at least two years after the initial heart attack.
A new approach to understanding and treating lower back pain has been introduced by MSU researcher N. Peter Reeves, focusing on the interaction of parts within complex systems. The approach aims to provide a more comprehensive understanding of spinal control and diagnose treat conditions more effectively.
Astronomer Dan Dicken uses Spitzer Space Telescope data to study heat energy from distant active galaxies, aiming to distinguish between starbursts and supermassive black holes. His research could help understand galaxy evolution, co-evolution of black holes and their host galaxies, and the diversity of active galactic nuclei.
A study found that people living in poorer neighborhoods are at a higher risk for death and have worse health outcomes, regardless of their dietary and lifestyle habits. The research controlled for various risk factors but still showed a significant association between neighborhood deprivation and increased mortality.
Researchers found that young adults in casual relationships do not experience higher levels of emotional distress compared to those in committed relationships. The study surveyed over 1,300 young adults and found a lower percentage of males reporting casual sexual encounters.
Two Duke undergraduates, Sarah Steele and Langtian Yuan, identified compounds that inhibit the enzyme protein kinase C zeta (PKCzeta) in brain chemistry changes involved in memory and learning. Their discovery may lead to a new remedy for methamphetamine and cocaine addiction.
A large population-based study of 5,042 female breast cancer survivors in China found that moderate soy food intake is safe and associated with lower mortality and recurrence rates. The study suggests that women with breast cancer may benefit from consuming soy foods as part of their treatment plan.
A study published in Nature found that testosterone actually encourages fair behaviors if it serves to ensure one's own status. The hormone increases sensitivity for status, leading to pro-social behavior in humans, rather than aggression. This challenges the long-held assumption that testosterone causes aggressive behavior.
The ASCB annual meeting featured the winners of 'Celldance 2009,' a film and still image contest recognizing scientifically important and visually engaging cell content. This year's top prize winners included Angela Stathopoulos for her video '2PEF Imaging Captures Gastrulation in Fly Embryos' and Aswati Subramanian for her scanning el...
According to a new study published in Injury Prevention, the risk of serious injury at resident summer camps is relatively low compared to other popular youth activities. The study found that less than 3% of camp injuries required hospital admission, with nearly 75% of injuries sustained by campers.
Researchers at the University of Florida have found a way to use reduced dosages of the chemotherapy drug TMZ to achieve better results against colon cancer cells. By combining TMZ with a small molecule, they were able to disable the ability of tumor cells to repair DNA damage.
A diet rich in pistachios may increase dietary intake and serum levels of gamma-tocopherol, potentially reducing lung cancer risk. Pistachio consumption has also been linked to a lower risk of prostate cancer.
A new study published in the Journal of Pediatric Psychology found that children with PTSD symptoms exhibit poor hippocampus function, which can lead to avoidance and numbing symptoms. The research provides a potential biomarker for early detection and improved treatments for traumatized children.
A genetic signature associated with poor patient outcomes could lead to improved therapies for ovarian cancer. The study found that MAGP2, a previously unknown cancer gene, was overexpressed in tumors of patients who died more quickly.
Researchers used EUS with contrast-enhanced harmonic imaging to diagnose small pancreatic carcinomas. Periodic follow-ups revealed accurate diagnosis of disease progression in patients with branch duct intraductal papillary mucinous neoplasm (IPMN).
The GPM mission will provide uniformly calibrated precipitation measurements globally every 2-4 hours for scientific research and societal applications. The mission builds on the success of TRMM and includes a Dual-frequency Precipitation Radar (DPR) and a multi-channel GPM Microwave Imager (GMI) to improve precipitation estimates.
Research shows human umbilical stem cells can improve corneal transparency and thickness in laboratory mice. The treatment has the potential to replace corneal transplants as an alternative therapy for severe genetic and corneal eye diseases.
A new study at Virginia Tech suggests that parents with weaker working memory skills are less able to control their emotions in response to children's misbehavior. This can lead to chronic parental negativity, which may reinforce negative behavior in children.
The university's School of Medicine will oversee two international trial sites in Uganda and the Philippines to test new TB treatments and regimens. The contract aims to improve TB treatment and control programs globally, benefiting millions of people affected by the disease.
Ray Jayawardhana, a University of Toronto astronomer, has been awarded the 2009 Steacie Prize for his exceptional contributions to astrophysics research. His discoveries have made headlines on several occasions, including capturing the first direct image of a giant planet revolving around a young sun-like star.
The US pediatric oral health report, published in Academic Pediatrics, emphasizes the need to improve outcomes and address disparities. The report presents key findings on the state of pediatric oral health in the US, including the prevalence of dental caries and access to care.
A novel framework encourages adult stem cells to differentiate into heart cells by mimicking the elasticity alterations that occur in protein scaffolds. More cardiomyocytes were formed on this framework than with conventional techniques, suggesting improved cardiac differentiation.
A study by Duke University researchers discovered a commonality in the genetic codes of human sex receptors and those found in other primates. This similarity suggests that varying sensitivity to specific odors may play a role in mate selection, potentially preventing cross-species couplings.
Researchers at the University of North Carolina found genetic variations that lead to less efficient glucose metabolism in African-American patients compared to whites. These findings suggest a link between diet and environment in shaping genetic predispositions to diabetes.
Researchers at UC Davis have developed a fast and accurate urine test for pneumonia using nuclear magnetic resonance spectroscopy. The test identifies a unique chemical 'fingerprint' in the urine of patients infected with Streptococcus pneumoniae, distinguishing it from other types of pneumonia and noninfectious lung diseases.
USF researchers Paul Sanberg and Douglas Shytle developed TC-5214, a promising alternative to antidepressants, which has shown effectiveness in treating treatment-resistant depression. The $1B deal with AstraZeneca could generate substantial revenue for the university.
A new study reveals that most antidepressants miss the mark on a key brain protein called monoamine oxidase A (MAO-A), which is highly elevated during clinical depression. This finding has important implications for understanding why antidepressants don't always work, with potential benefits for developing more effective treatments.
Scripps Research scientists have determined the structure of the Ebola virus's critical protein VP35, which blocks the human immune system. The discovery may lead to new drug therapies and vaccines for Ebola infection.
The American Dietetic Association recommends wisely choosing a wide variety of nutrient-rich foods to promote optimal health. While supplements can help fill dietary gaps, registered dietitians are essential in educating consumers on safe selection and use of nutrients.
A study published in the World Journal of Gastroenterology found that PEG placement does not guarantee elimination of gastroesophageal reflux. The researchers identified factors contributing to GER persistence, including reflux esophagitis and altered gastroesophageal flap valve function.
The 'Immune Attack' video game increased teenagers' understanding of cell biology and molecular science, according to a study. Players navigated the microscopic world of immune system proteins and cells to save a patient with bacterial infection, measurably improving their knowledge.
Researchers at UT Houston are conducting a Phase II trial using adult human mesenchymal stem cells to treat acute heart attacks. The study shows promising results, with patients experiencing fewer arrhythmias and improved overall condition after receiving the treatment.
A recent study published in JAMA found that most primary care physician practices have too few patients to reliably measure quality and cost performance. The researchers analyzed data from over 2005 Medicare Part B and found that only a small percentage of practices had sufficient caseloads to detect significant differences in common m...
Researchers at UC San Diego are developing new regenerative therapies for heart disease using adult stem cells and supportive materials. The study found that cells placed in these materials differentiate into cardiac muscle more effectively, offering a promising solution to treat cardiovascular diseases.
A Purdue University scientist has developed a nanoparticle that protects oils in food products from oxidation, which causes spoilage and degradation. The nanoparticle, modified phytoglycogen octenyl succinate (PG-OS), doubles the shelf life of oil droplets by acting as an emulsifier and barrier to oxidation.
The University of Alaska Fairbanks has selected Marinette Marine Corporation to build the 254-foot Alaska Region Research Vessel, a state-of-the-art platform for studying climate change and its implications on the Arctic environment. The $123 million contract is funded by the American Recovery and Reinvestment Act.
A new game called Immune Attack teaches 7th-12th graders about immune system proteins and cells. The game shows significant gains in confidence and knowledge among players, according to an FAS expert. The game is designed to inspire high school computer programming classes to create their own games.
The Medical College of Georgia is accelerating diabetes research with a $1.8 million stimulus grant, which will support the development of animal models and sophisticated testing procedures. The grant also enables scientists to analyze large datasets and identify key missteps in prostate cancer progression.
Rats exposed to tobacco smoke show affective and physical withdrawal signs, as well as nicotine-induced changes in the hippocampus, indicating nicotine dependence. The study suggests a rat model can be used to investigate tobacco smoke's effects on the human brain and evaluate novel treatments for tobacco addiction.
Researchers found that first-line ART can be delivered safely without routine biochemistry and haematology monitoring, but CD4-cell count monitoring has a small benefit in disease progression and mortality. The trial suggests that monitoring should start from the second year of ART to guide the switch to second-line treatment.
Cleo intensified from a Tropical Storm to a Cyclone, strengthening overnight and developing an eye. The MODIS instrument captured an image of Cleo on December 8 at 08:15 UTC, showing sustained winds near 109 mph with higher gusts.
The Ground Renewable Expeditionary ENergy System (GREENS) is a 300-watt photovoltaic/battery system that provides continuous power to Marines in the field. The system reduces logistical supply chain for fuel, cutting fuel use and costs associated with resupply convoys.
Researchers have found that transplanting human umbilical mesenchymal stem cells into mouse models can restore transparency to cloudy and thin corneas. The stem cells can survive in the stroma for over three months without rejection and become functional corneal cells.
Researchers at Johns Hopkins have developed therapies using gene therapy and stem cells to increase blood flow, improve movement, and decrease tissue death. The findings hold promise for developing clinical therapies to save limbs from amputation.
The American Society for Gastrointestinal Endoscopy has issued new guidelines for managing antithrombotic agents during endoscopic procedures. Aspirin and NSAIDs may be continued for all elective procedures, while temporary anticoagulation therapy should be completed before proceeding.