Researchers found that polygyny leads to an excess of genetic diversity on the X chromosome compared to autosomes. The process also results in fewer unique male genes being passed into the next generation.
Researchers are conducting a new study to investigate the safety and effectiveness of airway bypass using drug-eluting stents for patients with advanced emphysema or COPD. The trial aims to provide a minimally invasive treatment option for patients who have limited treatment options, such as lung reduction surgery and inhalers.
A community-based intervention package reduced neonatal mortality by 54% and 52% in two groups, respectively. The approach targets high-risk newborn-care practices and can be applied to behaviour change along the continuum of care.
The NASA Glory mission aims to measure airborne particles more accurately from space, shedding light on the aerosol effect on climate change. Participants can send their names on a microchip that becomes part of the spacecraft, with a deadline for submission set for Nov. 1, 2008.
A team from the University of Leicester has made a significant discovery in the study of diabetes drug target PPAR gamma. The researchers found that the protein binds to eight different fatty acids, which leads to its long-term activation, opening up new possibilities for the development of novel pharmaceuticals.
Researchers at New York University used functional magnetic resonance imaging (fMRI) to study patterns of brain activation during experimental auctions. They found that participants' exaggerated response to losses in the auction game correlated with their tendency to overbid, suggesting that the fear of losing social competition may le...
For obese patients, a single session of exercise boosts fat-burning oxidation and reduces accumulated fat by-products inside the muscle, improving metabolic health. The study found that exercising increased fat storage in muscles, suggesting a potential therapeutic benefit for individuals at high risk of developing type 2 diabetes.
The Rett Syndrome Research Trust aims to bring novel therapeutics addressing the underlying MECP2 pathology to clinical trials within five years. Classic Rett Syndrome affects females almost exclusively, causing severe physical disability and requiring total care.
A recent study by University of Chicago researchers found that animals farmed for meat are the primary source of campylobacteriosis, a common food poisoning bug. The bacteria were commonly found in chicken and livestock, with 57% of cases linked to chicken consumption.
Researchers investigated the role of interleukin-10 in reducing ischemia-reperfusion injury using DHP-PMX therapy. The study demonstrated that IL-10 may inhibit I/R injury, providing new insights into this critical problem.
The article proposes new best practices for corporate portfolio management, including revamping organizational structure and compensation systems to prioritize investor thinking. An independent group within companies can function like a SWAT team to support objective portfolio management.
A study in the Journal of Communication found that TV portrayals of risky sexual behavior can increase expectations of future engagement among inexperienced viewers. In contrast, those with direct experience are not influenced by TV content. This research highlights the potential for media to shape attitudes and behaviors.
Naren Vyavahare aims to extend the durability of bioprosthetic heart valves beyond 20 years through chemical linking of neomycin to tissue. Improved durability will enable surgeons to implant valves in younger patient populations with reduced risk of failure.
Sequella has received a $2.3 million NIH grant to develop SQ641, a promising new TB drug that demonstrates superior in vitro activity against Mycobacterium tuberculosis. The Phase 2 SBIR grant will fund critical path studies for delivery optimization and IND-related activities.
A team of astronomers has discovered a potential 'wild cousin' of the infamous exploding star supernova 1987A in a nearby galaxy. The newly found supernova, SN1996cr, exhibits similar characteristics to '87A and is an impressive 1,000 times brighter.
New research finds that e-mail is the most deceptive form of communication in the workplace, with people feeling justified when lying online. Studies show a significant difference in lying rates between e-mail and pen-and-paper communications, with e-mailers lying over 92% of the time.
A new study found that honey bees reared quickly perform less optimally on tasks, leading to oxidative damage and reduced longevity. This suggests a link between rapid development and aging, with potential implications for human health.
The DIRECT studies found that candesartan can reduce the incidence of retinopathy in type 1 diabetes and increase its regression in type 2 diabetes. The treatment also showed a significant reduction in risk of progression by three or more steps on the EDTRS scale.
A team of researchers found that positive feelings toward programming can be transferred to a brand, increasing attitudes towards the product. The study also highlights the benefits of product placement in programming, including increased shelf life and global distribution.
A simple device that uses an electrically charged tube to create an electric field that thins fuel has been developed, leading to a 20% increase in gas mileage in highway driving and a 12-15% gain in city driving. The technology has potential applications on all types of internal combustion engines.
A University of Missouri poverty expert found that the emotional stress associated with food stamp participation is higher than previously thought, particularly during the application and transition processes. The researcher suggests modifying the program by implementing a web-based application system to alleviate negative effects.
The new global carbon budget shows unprecedented acceleration of CO2 emissions and atmospheric accumulation, with natural sinks growing slower than emissions. Decreasing forest cover mainly due to deforestation is responsible for a significant portion of emissions, while oceans' carbon uptake has decreased by 10 million tons.
Researchers at the University of Texas at Austin have created a new graphene-based material that helps solve the structure of graphite oxide. The material, made by replacing normal carbon atoms with magnetically active carbon-13, will enable scientists to create different types of graphene and study its chemical structure.
Researchers found that high-dose statins can decrease satellite cell proliferation, potentially affecting muscle healing and repair. The study's findings suggest a need for further research on the effects of statins on muscle progenitor cells in older adults.
A new computer program, Medical De-identification System (MeDS), can accurately and speedily remove patient identifiers from medical records while retaining essential data for medical research. MeDS has been successfully tested on large datasets and shows promise in resolving the complex issue of privacy vs. public good.
Researchers found erlotinib to effectively block EGFR, improving survival in patients with pancreatic cancer. In vitro studies revealed erlotinib's ability to repress cell growth, induce apoptosis, and suppress angiogenesis.
Researchers have found a potential solution for diabetic gastroparesis by increasing production of a key molecule in the digestive process. The study, published in Gastroenterology, shows that a red blood cell derivative can restore normal gastric emptying and improve glucose control.
A study of 349 children with MS and 2,941 without the disease found that hepatitis B vaccination does not increase multiple sclerosis risk. However, a specific type of vaccine was linked to symptoms in vaccinated children with MS, three or more years after vaccination.
Researchers found that even after years of steroid use, muscle fibers still gave lifters an advantage. The study suggests that anabolic steroids can enhance muscle fiber size and endurance even after withdrawal.
Researchers at UCSB have developed a new nanoscale process called block co-polymer lithography that enables the creation of square, nanoscale chemical patterns on silicon wafers. This technology has the potential to make computers smaller, faster, and more efficient by packing transistors closer together.
McGill researchers have found the oldest rocks on Earth, dating back to around 4.28 billion years ago. The discovery provides new insights into the early separation of Earth's mantle and crust, shedding light on the planet's mysterious beginnings.
Researchers at MIT have developed a new theory to predict where aerodynamic separation will occur, which could impact fuel efficiency and more. The study extends existing knowledge from 1904 by addressing unsteady three-dimensional flows.
Researchers at University of Washington create Adeona, a free laptop theft-protection tool that uses internet and camera to track stolen laptops while maintaining user privacy. The tool has been downloaded over 50,000 times and can be used on desktops, laptops, and Linux machines.
Researchers found a specific form of the PNPLA3 gene linked to higher liver-fat content and increased risk of liver inflammation. Hispanics are more likely to carry this gene variant than African-Americans and Caucasians, highlighting a genetic explanation for ethnic disparities in fatty liver disease.
A new technology developed by Oregon State University can detect toxic behavior of contaminating bacteria, improving food protection while reducing costly recalls and waste. The approach uses pigment-bearing cells from Siamese fighting fish to assess toxicity in minutes.
Racing sled dogs have an extraordinary ability to rapidly adapt to sustained strenuous exercise and display enormous aerobic capacity. They can burn up to 12,000 kilocalories per day, fueling their runs with a high-fat diet.
A study by Dr. David Spence found that 95% of patients with asymptomatic carotid stenosis can manage without surgery, benefiting from improved medical treatment and lifestyle modifications. Patients with microemboli are the exception, requiring revascularization to reduce stroke risk
Researchers at Massachusetts General Hospital have discovered a new approach to gene therapy that uses normal brain tissue to create a 'zone of resistance' against brain tumor growth. By delivering a cancer-fighting gene to the surrounding tissue, tumors can be suppressed and eventually eliminated.
A new study found that countries with extensive government control over economies experience higher levels of ethnic conflict and civil wars. Economic policies redistributing income across ethnic groups exacerbate tensions.
Researchers identify a small molecule that blocks miR-21, a key player in brain and various types of cancer. The discovery offers new hope for developing targeted cancer therapies with fewer side effects.
A RAND Corporation study found that U.S. Army units can gain tactical and strategic advantages by better managing environmental issues during deployments, which can influence local support for the mission and overall success. The study recommends giving more weight to environmental considerations in planning and operations.
Researchers at Rice University developed a method to predict Wi-Fi coverage using basic topography and street locations, promising cheaper and easier network deployment. The technique was tested on two high-profile networks and showed promising results.
A retrospective study found that women with 3 or fewer involved lymph nodes have a low relapse rate after undergoing pre-operative chemotherapy and mastectomy. Patients with zero involved lymph nodes had a zero percent recurrence rate.
Scientists at National Space Biomedical Research Institute (NSBRI) are developing an interactive, multi-media program to assist astronauts in recognizing and managing depression. The system, part of the Virtual Space Station, provides a straightforward process for problem-solving and goal-setting, with features including graphics, vide...
Researchers investigated the relationship between Dendroaspis natriuretic peptide (DNP) and gastric motility. They found that DNP relaxes gastric antral circular smooth muscle via the cGMP/cGMP-dependent protein kinase pathway, which may help regulate gastrointestinal function.
A study using PET/CT showed an accuracy of 82.6% in detecting tumor recurrence, with clinical decisions changed for 30.4% patients. Molecular imaging technology may provide new applications for improving long-term survival in gastric cancer patients.
A study compared the diagnostic accuracies of endorectal ultrasound and pelvic phased-array magnetic resonance imaging for preoperative staging of rectal carcinoma. The results showed that phased-array MRI was slightly superior in determining transmural invasion depth, but both methods were similar in detecting lymph node metastases.
A new study from Fox Chase Cancer Center suggests that young women with DCIS are not more likely to experience recurrence than older women. The study analyzed data from 440 patients treated between 1978 and 2007 and found no significant difference in recurrence rates based on age.
Energy drink manufacturers should label their products with prominent warnings about caffeine doses and potential health risks, says a study by Johns Hopkins Medicine. The high caffeine content of many energy drinks poses a risk to consumers, particularly young adults.
Researchers found that older men with high-risk prostate cancer who received hormone therapy lived longer and experienced fewer PSA increases compared to those without treatment. A longer duration of hormone therapy resulted in improved overall survival rates, especially among those over 70.
Research team constructs eukaryotic plasmids containing HBV C genotype and lamivudine-resistant sequences, providing an experimental basis for in vitro studies on HBV lamivudine-resistant mutants. The results contribute to understanding the mechanism of HBV lamivudine-resistance.
A new study by Geisinger Health System found that improving healthcare value leads to better patient outcomes, including reduced hospital admissions and unnecessary drug costs. The study's initiatives, such as the medical home program and ProvenCare, have eliminated common delivery issues and improved care coordination.
Researchers used ultrasonography to diagnose biliary atresia in patients. The study found that the triangular cord was a specific feature of the disease, while flat and small gallbladders were also diagnostic. Hepatomegaly and heterogeneous echogenicity were proportional with liver fibrosis.
Anna Pou, M.D. will lead a discussion on emergency preparedness and disaster medicine, emphasizing the need for ethical guidelines and legislative protections for healthcare professionals. The presentation aims to provide a national consensus on ethical guidelines for physicians caring for casualties of disasters.
The study found that high concentrations of serum folate/vitamin B12 are associated with an increased risk of promoter methylation in tumor-specific genes, which is modified by the MTHFR C677T genotype. The results suggest a potential protective effect against colorectal cancer.
Researchers will analyze larger networks to understand how they form and evolve over time, with potential applications in identifying critical nodes and predicting new growth areas.
Researchers from the University of Michigan have discovered that metal alloys can degrade due to diffusion, a process where atoms hop through the material, changing its structure. This finding has significant implications for the development of longer-lasting alloys, particularly in electronic materials like solder.
The new center will foster collaborations among researchers with diverse expertise to tackle current biological problems using various tools and approaches. Researchers will be able to measure complex interactions and simulate events that cannot be studied experimentally, offering new insights into mechanisms.
The study found that liraglutide improved blood glucose control compared to glimepiride, with significant reductions in HbA1c levels. Participants receiving liraglutide also experienced weight loss and decreases in systolic blood pressure, making it a promising treatment for type 2 diabetes.
Research reveals tobacco companies paid top Hollywood stars millions in endorsement deals, contributing to the persistent presence of on-screen smoking in mainstream films. Almost 200 actors took part in cigarette endorsements between 1927 and 1951.