Researchers have discovered a new vector, AAV5, that can carry large genes linked to inherited blindness, paving the way for potential gene therapy treatments. This breakthrough enables the delivery of corrected faulty genes into cells where they are required.
Researchers have created a more efficient photon mapping approach to reduce computational cost in creating realistic smoky and foggy 3-D images. The new technique, presented at Eurographics 2008, has the potential to increase the reach of ray tracing algorithms into video games and consumer graphics.
A St. Jude Children's Research Hospital study identified genes involved in DNA synthesis and repair that contribute to methotrexate resistance in childhood acute lymphoblastic leukemia. The study found distinct gene expression profiles among patients who responded well or poorly to methotrexate, predicting treatment response and diseas...
Relearning Aristotle's notion of virtue could bring business and society closer, according to a study published in the International Journal of Business Excellence. Businesses that prioritize purpose and aspirations over profit are more likely to succeed in today’s global economy.
The guidelines aim to increase the effectiveness of PAP devices in treating obstructive sleep apnea (OSA) by providing standardized methods for titration. The recommendations include adequate education, careful mask fitting, and acclimatization before titration, as well as limits on CPAP device water levels.
A study from Georgetown University Medical Center suggests that high-energy space radiation can lead to premature aging and prolonged oxidative stress in cells, potentially causing colon cancer. The researchers found that exposure to high-LET radiation induced a highly oxidative environment in cells, conducive to cancer development.
A study published in JCSM finds no significant differences in sleep parameters between patients undergoing sleep studies in a hotel and a hospital-based sleep laboratory. Sleep architecture changes, including REM sleep latency and stage 1 sleep, were similar in both groups.
A team of Japanese astronomers has discovered that the Milky Way's central black hole, Sagittarius A*, let loose a powerful flare three centuries ago. The finding resolves a long-standing mystery about the black hole's quiescent nature.
A study of 250 BRCA carriers found that prophylactic mastectomy significantly reduces the risk of developing breast cancer, with only one case detected. The cost of ongoing surveillance is high and can be stressful for patients, while intensive screening may not always detect cancer at an early stage.
Researchers have found genetic differences in breast tumors between African-American and Caucasian women that may contribute to the more aggressive clinical features of breast cancer in African-American women. These differences were also seen in prostate cancer, suggesting a possible link to viral involvement and genetic factors.
Researchers found that COPD patients who used a computer game to control their breathing showed significant improvements in exercise duration and reduced exercise-induced hyperinflation. The study suggests that teaching these breathing techniques to daily activities could greatly improve quality of life for patients.
A study suggests that the sponsor of rofecoxib, Merck, misrepresented the drug's safety profile in clinical trials involving patients with cognitive impairment. The analysis found a significant increase in mortality among rofecoxib patients compared to placebo patients, which was not reported by the sponsor.
Researchers have engineered a frequency-agile metamaterial that can be tuned over a range of frequencies in the terahertz gap, opening it up to various applications. The team's innovative composite uses semiconducting materials to achieve 20% tuning of terahertz resonance across different frequencies.
Researchers at NIST have developed a new imaging system that detects naturally occurring terahertz radiation with high sensitivity and resolution. The technology enables rapid identification of chemical hazards and may aid in early tumor detection.
Netherlands Railways improved train punctuality by 2.2% through operations research, increasing public satisfaction and attracting more passengers. The project resulted in an additional annual profit of $60 million and is expected to grow to $105 million.
A new study by Deniz Erten-Lyons shows that a larger hippocampus in the brain may protect individuals from the effects of Alzheimer's disease. Researchers compared the brains of 12 people with sharp memories to those of 23 individuals diagnosed with Alzheimer's disease, finding a significant difference in hippocampus volume
Palliative care is now considered an integral part of serious respiratory disorders treatment, with individualized and integrated care promoting patient-focused symptom management. The ATS clinical policy statement emphasizes comprehensive care, including professional competence development and education.
Two studies suggest that chemotherapy is not the cause of memory problems in breast cancer patients, but rather stress and quality of life factors. Women with recent diagnoses performed similarly on cognitive tests to those without cancer, while those who had completed treatment showed better scores.
Researchers at UAB have discovered that triphendiol induces cell death in pancreatic and bile duct cancer cells, slowing tumor growth and sensitizing tumors to chemotherapy treatments. The investigational drug has shown promise as a potential treatment for pancreatic adenocarcinoma.
The new guide offers techniques for characterizing the purity of SWCNT samples using thermogravimetric analysis, near-infrared spectroscopy, Raman spectroscopy, and optical microscopy. These methods aim to improve production processes, reduce impurities, and enhance the confidence of buyers and sellers in the market.
The RSTMH president calls for a shift in global health priorities to address neglected tropical diseases with effective treatments available at minimal cost. Currently, billions of people lack access to quality healthcare products, hindering their well-being and productivity.
A study by Michigan State University found that media coverage of breast cancer prioritizes treatments over prevention. The research highlights the importance of promoting cancer-prevention techniques through media awareness, as it can have a significant impact on women's perceptions and behaviors.
A study found that people with Alzheimer's disease who took vitamin E lived 26% less likely to die than those who didn't take vitamin E. Vitamin E may be more beneficial when taken with a cholinesterase inhibitor.
Researchers at NIST developed a device that creates nanodroplets for studying individual proteins under conditions similar to those found in cells. This technique mimics the crowded environment of cells, allowing researchers to study protein dynamics and structural changes without interfering with or damaging the proteins.
The oral drug FTY720 has been shown to reduce disease activity in people with multiple sclerosis by more than 50 percent compared to placebo. After three years of continuous use, participants experienced sustained low relapses and reduced inflammatory activity.
Winter cover crops can perpetuate themselves through self-seeding, eliminating planting costs and time constraints for farmers. This innovative management system also enhances weed suppression and improves soil quality.
Researchers have discovered novel methods for delivering drugs directly to cancer tumors, including the use of peptides and nanotechnology. These methods show promise in reducing malignant tumors in mice and increasing survival rates.
Case Western Reserve University researchers discover that gravitational radiation can be produced by a mechanism other than inflation, which could redefine the concept of a 'smoking gun' for early universe theories. This finding strengthens motivation for detecting primordial gravitational radiation, which is crucial for understanding ...
Recent discoveries suggest that stem cells can serve as potential therapeutic targets for many types of cancers. Researchers have identified specific markers, such as aldehyde dehydrogenase, to isolate cancer-initiating cells and track their response to treatment. These findings hold promise for the development of targeted therapies.
A new method using nanotechnology rapidly measures minute amounts of insulin, enabling real-time assessment of the body's insulin-producing cells. This breakthrough could improve the efficacy of a procedure for treating Type 1 diabetes, allowing diabetics to free themselves from insulin injections.
Breast cancer incidence rates in US women over 50 declined sharply in 2002 and 2003, but only among Caucasians. For African Americans, there was virtually no change in invasive breast cancer rates. The study suspects genetic variations in estrogen metabolism may play a role in how women of African ancestry respond to hormonal therapies.
A 10-year retrospective study found that even small increases in serum creatinine levels during hospitalization raise the risk of end-stage renal disease and mortality in elderly patients. The study also identified that larger changes in creatinine levels were associated with higher risks.
A new study finds that air pollution from sulfur dioxide, fine particles, and nitrogen dioxide can cause decreased lung function and increase asthma symptoms in inner-city children. The study suggests that current air quality standards may not be sufficient to protect these vulnerable populations.
The editorial highlights the manipulation of research data and clinical reviews by pharmaceutical companies, compromising public trust in medical science. To restore integrity, researchers, editors, and journals must implement measures such as trial registration, authorship criteria, and disclosure of financial conflicts of interest.
A USC study found that specific gene variants linked to colon cancer result in opposite survival outcomes for men and women. Women with certain variants had higher overall survival rates, while men with the same variants had lower survival rates.
New data shows that vectors derived from AAV5 can accommodate large genes, including those missing in a mouse model of recessive Stargardt disease. This breakthrough has implications for treating individuals with the disease, which is characterized by progressive loss of sight.
Cardiology researchers at The Children's Hospital of Philadelphia have developed a synthetic material that can bind to various gene therapy vectors, allowing controlled local release of therapeutic genes. In an animal study, the new formulation showed significant reduction in restenosis, a hazardous narrowing of blood vessels.
A study found that husbands with OSA are more likely to adhere to CPAP if their wives share the bed. The results suggest that when both partners sleep together, the husband is more likely to continue using his CPAP mask. This is because CPAP can control snoring and excessive movements that disturb both partners' sleep.
A tracking system helped improve rates of medical oncology consultation and reduce disparities in breast cancer treatment by notifying surgeons when their patients visited an oncologist. The new system also eliminated racial disparity in treatment, as minority women were less likely to receive underuse of adjuvant therapy.
Researchers present promising results for new therapies targeting VEGF receptors and blood vessel formation in various types of cancer. These treatments have shown potential to shrink tumors and prolong survival for patients with glioblastoma and rectal cancer.
A study found that company employees and unacknowledged authors often wrote clinical trial articles and review papers on rofecoxib, while primary authors had little to do with the research. Guest authorship was common in review articles, but ghostwriting was also prevalent.
Combining stents and photodynamic therapy significantly improves survival rates for patients with advanced liver bile duct cancer, increasing it from 7 months to over 16 months. The treatment's effectiveness is attributed to the number of stent-replacement procedures and PDT sessions.
A new journal, Biotechnology for Biofuels, has published a report describing the efficient production of bioethanol through hot water pretreatment on wheat straw. Researchers found that this process helps remove wax and hemicellulose, enhancing enzymatic digestibility and producing better quality bioethanol.
Researchers have found that cancer cells use glucose to avoid programmed cell death and maintain survival through the protein Akt. By exploiting this mechanism, cancer cells can bypass normal safeguards and continue to grow even without growth factors.
Research by Tufts University biologists reveals that early exposure to atrazine leads to deformed hearts, impaired kidneys, and digestive systems in tadpoles. The study found a significant increase in abnormalities in organs after 48 hours of exposure, with 57% of tadpoles having smaller-than-normal hearts.
A new clinical trial has shown promising results with riluzole, a U.S. FDA-approved drug, slowing the growth of late-stage melanoma in human patients. The Phase 0 trial found three solid positive responses in nine patients, indicating potential as an adjunct to surgical treatment for stage 3 or 4 melanoma.
Research found that annual flu vaccines reduced acute respiratory illness and exacerbations of COPD by 67% and 50%, respectively. Patients with severe COPD experienced a 75% reduction in respiratory problems.
GE Research received the 2008 INFORMS Prize for its demonstrated record of applying operations research throughout various business areas at GE, driving significant value and competitive advantage. The award recognizes GE's sustained application and use of O.R. in pioneering ways.
Children with allergic or asthma-prone mothers are at increased risk of wheezing and respiratory issues if they swim before 6 months old. Most infants who swam showed no increase in lower respiratory tract infections or ear inflammation.
Scientists at Argonne National Laboratory have developed techniques to create accurate movies of molecular movements, allowing for the direct observation of complex molecule motions in solution. This breakthrough enables researchers to test the accuracy of computer simulations and gain insights into molecular structure and behavior.
Researchers found that calorie restriction hinders development of pancreatic cancer by reducing levels of IGF-1 and inflammatory signaling proteins. Only 7.5% of mice on the calorie-restricted diet developed lesions, compared to 45% and 57.5% in overweight and obese groups.
Researchers have developed reliable methods to assess the concentration and viability of anthrax spores after prolonged storage using DNA analysis techniques. This study provides essential steps in developing a reliable reference standard for anthrax detection and decontamination.
A survey by Ohio State University found that public opinion about outdoor cats varies widely across the state, with some residents supporting spay-neuter laws and others believing local governments should control free-roaming cats. The study suggests a community-based approach is needed to address the issue.
Researchers at NIST have combined a transition-edge sensor with a microrefrigerator on a single microchip, achieving the first cooling of a fully functional detector. The combo chip offers the possibility of faster and cheaper precision analysis of materials like semiconductors and stardust.
Researchers are using cellular strategies and new vaccines to direct the body's immune system against cancer. A phase I/II trial of a live Listeria cancer vaccine has shown that it is safe for humans and can reduce tumor size in some patients, with three women experiencing approximately 20 percent tumor reductions.
Two new therapies have shown promising results in treating basal cell carcinoma and pancreatic cancer. A novel molecule, GDC-0449, has been found to shrink tumors with limited side effects, while a combination of two drugs has shown significant clinical benefit in over 80% of pancreatic cancer patients.
A recent investigation found that coral species have recovered from the atomic blast, with diverse and abundant marine life observed. However, some species are locally extinct due to the bomb's effects on water temperatures and nutrient levels.
A study found that cultural identity influences mental health in adolescents, with different effects for girls and boys. Clothing preferences were also a significant factor, with traditional clothing associated with improved mental health outcomes.
A new study published in the Journal of Clinical Sleep Medicine (JCSM) has found that obesity can predict upper airway obstruction among children. The research, conducted on 190 Australian children aged four to 12, suggests that body mass is a significant predictor of upper airway obstruction severity, but its impact varies by ethnicity.
Researchers at Arizona State University are exploring the potential of electric-acoustic stimulation (EAS) technology to improve hearing in individuals with profound hearing impairment. By combining electric and acoustic stimulation, EAS has been shown to provide significant benefits, including improved performance in noisy environments.
Scientists from CSIRO tracked and mapped the habitats of 50 gulper sharks, swellsharks, and green eye dogfish near Port Lincoln, South Australia. The research aimed to evaluate the conservation value of closed areas designed to protect vulnerable shark species.
Cognitive radio technology aims to provide efficient wireless access networks, but new security threats may compromise its effectiveness. Researchers will investigate cooperative spectrum sensing and on-demand spectrum contention to develop more secure technology.
Research found that people who experienced strokes while fasting during Ramadan had a higher average number of strokes (5.5) compared to those not fasting (2.0). The study suggests coexistence of usual risk factors and dehydration may contribute to increased susceptibility to cerebral venous sinus thrombosis.
A retrospective chart review of 100 PSGs and medical records revealed that 77% of the sample had a sleep-related breathing disorder. The study also found an increase in odds ratio for SRBD with increasing BMI, as well as significant associations between SRBD and congestive heart failure.
Researchers identify gene variation associated with mental stress-induced ischemia, a condition that increases the risk of heart attack and sudden death. About two-thirds of patients with coronary artery disease experience detectable mental stress-induced reductions in blood flow to the heart.
A genetic study found that chance determines the fate of B. subtilis bacteria, with only a portion producing proteins that benefit the colony and help them form spores. The study used computer simulations to analyze the genes controlling protein production and spore formation.
A single subjective question can effectively screen for excessive daytime sleepiness, comparable to the Epworth Sleepiness Scale. The study involved 303 subjects and found significant associations between the single question and ESS scores, indicating it is a good measure of subjective sleepiness.
Researchers at Indiana University School of Medicine found that introducing a relationship-centered learning environment improved student satisfaction with their medical education, with increased rates of out-of-state applications. The study also showed enhanced responsiveness to student problems and a more favorable impact on organiza...
A new study published in PLOS ONE found that female fruit flies often choose males who win fights, contradicting the assumption that aggression is key to successful mating. The researchers suggest that unexpected interactions between individuals, known as 'chemistry,' play a crucial role in mate selection.