Researchers have found a key vasodilator degraded in hypertension, leading to potential new treatments that prevent organ damage. A new pathway targeting the kidneys' response to hypertension may help control blood pressure and improve kidney function.
The survey found that in half of the state's school districts, students are opting for a General Equivalency Development (GED) certification instead of passing Regents courses. This trend is serving as a pressure release on the system, with students enrolled in GED programs being reported as transfers and not high school dropouts.
Researchers analyzed gene expression profiles from thousands of lymphoma biopsy samples to identify predictive genes that can predict patient response to treatment and survival rates. The study found that a formula created from 17 key genes could accurately classify patients into four groups with varying five-year survival rates.
The AAAS CEO emphasizes the need for international scientific cooperation to address global challenges. The organization supports unfettered information exchange and travel freedom, highlighting the benefits of science-based diplomacy in bridging political divides.
The record winter weather led to a significant boost in the US economy, with estimated benefits of $21 billion. The mild conditions resulted in lower heating costs, reduced snow-removal expenses, and an increase in construction income.
Researchers at Princeton University have developed a new method for printing ultrasmall patterns in silicon wafers, which could increase transistor density on chips by 100-fold. This breakthrough, called Laser-Assisted Direct Imprint, eliminates the need for costly and time-consuming etching processes.
Researchers at the University of Toronto found that balancing ACE 1 and 2 genes leads to healthy hearts in mice models. The study sheds light on the complex relationship between ACE 1 by-products and cardiovascular disease.
The Society of Nuclear Medicine announced its Image of the Year, showcasing an innovative PET scan for detecting lung cancer in a patient with dermatomyositis. The image also highlights a groundbreaking study on dopamine transporters in mouse brains using ultra-high resolution SPECT.
A study by E. Todd Schroeder and colleagues found that androgen therapy increased muscle mass, strength, and power in older men, improving their ability to perform daily activities. The findings suggest that supplemental androgen therapy might benefit older men prone to losing muscle mass due to sarcopenia.
Researchers develop concentrated colloidal inks that form self-supporting features through a robotic deposition process, allowing for complex shapes and chemical composition variations. The technique enables the creation of fine-scale structures with features as small as 100 microns.
Researchers discovered that fin whales sing low-frequency songs during krill feasts, which could be hampered by human-made noise. The study suggests that human activities like sonar and shipping may interfere with whale communication and reproduction, threatening population recovery.
Research by Dr. Lisa Ellerby at the Buck Institute suggests that calpain, a naturally occurring enzyme, plays a key role in Huntington's disease progression. The study uses post-mortem tissue and cell culture models to show that calpain activation is involved in brain damage.
Dr. Krol will work to engage pediatricians and family practitioners to advocate on behalf of Medicaid dental program improvements. She aims to incorporate oral health education into pediatric residency training programs at Columbia-Presbyterian Medical Center.
A new technique uses ESR to measure distances between atoms in proteins, revealing the overall structure of a molecule. This method is particularly useful for studying larger protein assemblies and membrane-embedded proteins, which are challenging to study using traditional methods.
Researchers at Washington University in St. Louis have successfully made boron nanowhiskers, the world's first crystalline nanowires, exhibiting semiconducting behavior and potential as key materials in nanoelectronics. The discovery could lead to the development of more reliable conductors, solving limitations faced by carbon nanotubes.
Regular cranberry juice consumption could reduce UTI development and need for antibiotics, potentially slowing antibiotic resistance. Cranberry's anti-adhesion properties prevent bacteria from sticking to the urinary tract.
Researchers found that increasing UVB levels in wetlands are associated with an increased frequency of frog malformations. The study suggests that UV radiation may be a significant contributor to the decline of amphibian populations, particularly in areas where ozone depletion and climate change reduce natural UV protection.
A new study conducted in New Zealand found no increased risk of prostate cancer among men who had undergone vasectomy. The study, which interviewed over 2,200 men, suggests that vasectomy does not pose a biological risk for prostate cancer.
A study by Troost found Botox to be an effective preventive therapy for headache treatment, with 92% of patients experiencing improvement after four treatments. This alternative approach can reduce medication use and side effects, offering a promising solution for debilitating headaches.
A new analysis suggests that early statin use after a heart attack is only effective in patients with high cholesterol levels above the recommended guidelines. The study found no difference in mortality rates between those who received early statins and those who did not.
A study of female radiologic technologists found that prolonged exposure to low dose radiation is associated with a higher risk of breast cancer mortality. Women who started working as radiologic technologists before 1940 were nearly three times more likely to die from breast cancer than those who began working in 1960 or later.
A study found that the GSTP1 polymorphism was associated with increased survival in patients with advanced colorectal cancer who received platinum-based chemotherapy. Meanwhile, research on human herpesvirus-8 suggested that the K1 gene may play a role in malignant transformation.
University of Pittsburgh researchers found combined PET/CT scans to be a valuable tool for staging and re-staging patients with difficult-to-track cancers. The technology identified additional cancerous lesions in 80% of ovarian carcinoma patients and 45% of cervical carcinoma patients, leading to changes in treatment plans.
Scientists have identified brain chemicals that can stimulate nerve regeneration after spinal cord injury, providing a potential new target for intervention. By understanding how these chemicals interact with inhibitors, researchers hope to develop treatments to repair damaged nerve cells and improve outcomes for patients.
The study found that between 1950 and 1960, male cancer mortality was nearly 50% greater in high socioeconomic areas compared to low areas. By 1998, this gap had narrowed and even reversed, with the lowest socioeconomic groups experiencing higher mortality rates.
A study found that genetic mutation penetrance for melanoma varies by geographic location, with higher risks in countries like the US and Australia. Researchers suggest environmental factors contribute to this variation, contradicting previous assumptions about gene mutations and their impact on disease expression.
Researchers found over 200 groups of adjacent and similarly expressed genes in Drosophila melanogaster, accounting for approximately 20% of the genome. The 'sloppy' regulation may reflect chromatin's packaging and influence gene expression more by accident than design.
Researchers at Purdue University and the USDA have developed tomatoes with significantly higher levels of lycopene, a key cancer-fighting antioxidant. The genetically modified tomatoes contain up to 3.5 times more lycopene than conventional varieties, which may help reduce the risk of certain cancers and heart disease.
Recent studies have shown that combining Xenical with a mildly reduced calorie diet can improve glycaemic control, body weight, and waist circumference in overweight or obese patients with type 2 diabetes. The medication has been found to reduce HbA1c levels by as much as 46% in patients with poor glycaemic control.
A new computational model developed at Purdue University accurately predicts the performance of thermal-barrier coatings, allowing designers to predict the properties of various mixtures. The model has been shown to be over 90% accurate and promises to save time and money by ruling out ineffective mixtures.
Researchers found Xenical significantly improved HbA1c and fasting plasma glucose levels in patients with type 2 diabetes. Additionally, treatment with Xenical showed post-prandial glucose benefits and cost-effectiveness as an adjunctive therapy to oral anti-diabetic medications.
LY333531 improves nerve function and sensory symptoms, including tingling and numbness, of diabetic neuropathy. The treatment is being studied for multiple diabetic microvascular complications, including diabetic retinopathy and nephropathy.
A NASA study found that urban heat islands create more summer rain over and downwind of major cities worldwide. The increased heat promotes rising air and alters weather patterns, leading to higher rainfall rates in urban areas.
Researchers found that certain fungi can supply calcium to trees in acidic soils, reducing the loss of essential nutrients. However, not all tree species have beneficial fungal associations, and other factors like soil acidity can still hinder plant growth.
Researchers at Ohio University found that a behavioral therapy program reduced migraine frequency and severity in teens by 80%, with no medication required. The study suggests an alternative approach to treating migraines in children and teens.
A new set of patient interview questions has been developed to improve understanding of Hmong culture and traditions. The study found that many patients use both shamans and physicians for their health care, highlighting the need for a more holistic approach to patient care.
A computer model reveals that genetically modified organisms (GMOs) can lead to the extinction of natural populations in as few as 20 generations. The research also identifies an 'invasion risk' where introduced genes spread through the population without reducing overall size.
A study by Dartmouth/VA researchers found that major US news media favored routine use of screening mammography and urged caution about tamoxifen, with greater emphasis on the negative aspects of the latter. The coverage of these issues highlights the need for balanced media reporting to focus on science rather than emotions or politics.
A study of 200 type 1 diabetic patients found a significantly higher mortality rate among African Americans, due largely to acute complications. The results suggest an inadequacy in care for African Americans with type 1 diabetes, potentially linked to issues such as access to care and education.
The Johns Hopkins University Applied Physics Laboratory (APL) successfully conducted the first ground test of a full-scale, fully integrated hypersonic cruise missile engine using conventional liquid hydrocarbon fuel. The Dual Combustion Ramjet (DCR) engine concept demonstrated robust engine operation at speeds up to Mach 6.5.
A study found that lipid-lowering therapy may not be effective in arresting or reversing CAD in one out of four patients, highlighting the need for personalized medical management. PET MPI can help identify treatment failure and guide tailored treatment strategies.
The UC Davis Community Partnerships with Pediatricians for Healthy Children program provides medical residents a grassroots experience in disadvantaged neighborhoods. The program, funded by the $1.8 million Dyson Foundation grant, links residents with community collaboratives to identify and solve health issues.
A one-year study found that a diet reducing fat and calories, combined with walking, led to an average weight loss of 8.5% and improved blood sugar levels. Exercise was reported as the most beneficial behavior among participants.
Researchers used two techniques to examine the electronic structure of magnesium diboride, revealing interactions between electron holes that contribute to its superconductivity. The findings provide new insight into the material's properties and may lead to improved magnetic resonance imaging and electric power transmission.
The study found that while the CT and HPET images could be co-registered within 2mm in centrally located tumor inserts, tumor inserts on the peripheral were only 8-10mm due to distortion and resolution loss of HPET images. This made it difficult for a therapist to refine treatment volume using the co-registered HPET/CT images.
Research found that heavy drinkers exhibit a 'biphasic' response to alcohol, experiencing increased stimulation and euphoria during rising blood alcohol concentrations, but sedation and fatigue during declining levels. In contrast, light drinkers showed only sedation and no positive mood changes.
A study using PET/CT scans found that 58.8% of patients had at least one positive focus of FDG uptake in the thoracic aortic wall, which may indicate 'vulnerable' plaque. This could lead to future cardiovascular events if left untreated.
The study found that higher initial FDG uptake in tumor was associated with poorer prognosis in osteosarcoma patients. Patients identified as having high FDG uptake could be treated more aggressively to improve outcomes.
A recent study by Seth Pollak found that children who have experienced physical abuse categorize facial expressions differently than non-abused children. Abused children identified more faces as being 'angry' rather than fearful or sad. This suggests that experience can shape how people perceive and understand emotions.
Researchers found that male and female rats selectively bred for high and low sensitivity to alcohol also exhibited differences in their response to nicotine. The study suggests that genetic factors may contribute to the co-occurrence of these two substances in individuals, highlighting the need for further research on this topic.
A new UNC study finds that Hispanic men become obese 2.5 times faster than U.S. men of European ancestry, while black women become obese more than twice as fast as white women. The study also shows that the prevalence of obesity in U.S. adults doubled over 40 years, with 61% now classified as obese or overweight.
A study found that nearly 56% of diabetic patients have stress-induced ischemic defects revealed by SPECT myocardial perfusion imaging, regardless of age or sex. These defects were more prevalent in asymptomatic patients than those with a history of chest pain.
A study found contaminated E. coli bacteria in hot sauces from popular tourist restaurants in Mexico and Texas, increasing the risk of travelers' diarrhea. A simple test can detect peripheral arterial disease by comparing blood pressure in the arm and lower leg.
University of Houston researchers are studying novel filtration membranes that can remove up to 90% of natural organic material from water. Their goal is to design better large-scale filtration systems to improve the quality of drinking water supplies, particularly in areas with contaminated or dirty water sources.
A UGA research team has identified a common bacterium as the cause of white pox disease, killing over 98% of elkhorn coral on some reefs near Key West. The disease is highly contagious and spreads rapidly between reefs, highlighting the impact of environmental changes on marine ecosystems.
A new diagnostic tool, Tc 99m Depreotide, has been shown to detect the source of infection in all patients studied within three hours after injection. This is significantly faster than traditional nuclear imaging tests, which can take up to 48 hours, and offers improved accuracy.
A long-term pediatric AIDS study of over 500 children reveals that cardiac abnormalities may persist in infants born to HIV-positive mothers. The study found that both infected and uninfected children had higher left ventricle mass and lower contractility, but differences dissipated over time.
Researchers have developed a new radioimmunotherapy cancer treatment that has shown significant promise in treating mantle cell lymphoma. The study found that high-dose therapy resulted in complete remission for seven of eight patients, compared to only one of four with low-dose therapy.
A new cellular evolution theory challenges Darwinian assumptions by emphasizing horizontal gene transfer as the driving force behind cellular life's evolution. This process allowed for the acquisition of alien cellular components, including genes and proteins, to promote evolutionary change.
A recent study published by the NIH found that approximately 6-7% of women experience regret after tubal sterilization, with a higher risk for those who have experienced conflict with their husbands. The study also discovered that only 2% of women request reversal of either procedure.