Scientists at the University of Bristol have found that inflammation caused by trapped white blood cells can obstruct blood flow to the brain, leading to poor oxygen supply. This discovery suggests a new mechanism for high blood pressure, with potential therapeutic targets for treatment.
Researchers discovered that an investigational cancer drug selectively kills cancer cells due to its affinity for a modified version of heat shock protein 90. The modification, called acetylation, allows the drug to target and block the activity of this protein, promoting cell survival.
Research reveals how interneurones process information from senses and brain to control movement, with persistent sodium current playing a critical role. Abnormal regulation of this current may impair motor command integration, affecting normal movement patterns.
Researchers have identified a minimal DNA structure that activates the ATR-mediated DNA damage checkpoint in a cell-free system. This discovery enables precise control and quantitative probing of checkpoint signaling responses.
Researchers have discovered that bacteria can enter immune system cells through a pore in the cell membrane, triggering an immune response without activating Toll-like receptors. This finding offers new perspectives for developing human vaccines and drugs that target inflammatory responses in autoimmune diseases like rheumatoid arthritis.
Researchers have built a new model that suggests neutron star surfaces run hotter than previously thought, releasing 10 times more heat. This helps explain the observed frequency of superbursts on such stars' surfaces, but scientists still don't know why they occur annually.
Research found that students who watched more TV on 9/11 had higher levels of stress in their dreams, while those who talked to family and friends experienced better processing of traumatic events. The study suggests that repeated exposure to horrific images through TV may amplify stress and trauma.
Researchers have identified ten areas of the wild tomato genome associated with resistance to grey mould. The discovery could lead to the development of new, pesticide-free tomato varieties.
Researchers created ultra-small microreactor chips that increase chemical reaction rates by up to 1.7 times, reducing safety risks and increasing efficiency. The miniaturized Total Analysis System (µTAS) is now a feasible future technology.
An international science team led by LSU professor Robert Twilley is developing an environmental observation system for India to help reduce climate-related risks. The system will provide a scientific foundation for long-term government policies aimed at meeting international accords on greenhouse gas emissions.
Researchers at Rowan University and Penn Medicine developed a high-accuracy method to diagnose early-stage Alzheimer's using EEG signals. The test, which can be done in a physician's office, has an accuracy rate of 82-85% and may provide earlier treatment and improved quality of life for those affected.
The Netherlands Organization for Scientific Research found that CO2 capture and storage can avoid up to 80-110 million tonnes of CO2 emissions annually. The technology has significant potential in various sectors, including energy, industry, and transport.
The U.S. Department of Energy's Argonne National Laboratory has developed emission control strategies to meet air quality goals for the 2008 Summer Olympics in Beijing. The modeling study, funded by the EPA, suggests that regional pollutants and ozone build up over several days due to meteorology and topography.
X-ray scattering techniques have been successfully applied to determine how dissolved metal ions interact in solution, revealing their structures and long-range interactions. This research helps understand how metal ions behave in the environment and has implications for predicting reactions to metal contaminants.
Dutch researcher Saikat Mazumder developed a method to estimate CO2 storage in coal using CT scans, improving understanding of crack patterns and gas absorption. Coal was found suitable for filtering out carbon dioxide from waste gases and storing it.
Zimbabwean smallholder farmers in semi-arid regions face food shortages due to limited fertilizer use. Research by Bongani Ncube found that nitrogen availability is the key factor improving cereal yields. Crop rotation also showed promise, with leguminous crops doubling sorghum yields.
A new study by Columbia University's Mailman School of Public Health has found that gay and bisexual men are at a higher risk for eating disorders than heterosexual men. The study surveyed 516 New York City residents, including 126 straight men, and found that over 15% of gay or bisexual men had suffered from anorexia, bulimia, or bing...
Researchers have developed a new method for testing the reliability of tests, improving the accuracy of risk estimates and enabling better product quality control. The new approach takes into account the severity of errors, providing a more realistic measure of reliability.
A new study published in Employee Responsibilities and Rights Journal finds that homosexuals are no more disruptive to military life than their heterosexual counterparts. The study, led by Dr. Debbie Knapp, challenges the U.S. military's reasoning behind discharging gay soldiers under the 'Don't Ask, Don't Tell' policy.
Up to 65% of Quebec Cree preschoolers are overweight or obese, according to a recent study published in the American Journal of Public Health. High waist circumferences and low physical fitness levels were also found among elementary school students.
A new class of anti-HIV drugs has proven effective in a clinical trial by inhibiting the integrase enzyme, leading to a significant drop in HIV RNA levels and an increase in CD4 cells. The study suggests that this drug could become an important component of combination treatment regimens for heavily pretreated patients.
The study provides a comprehensive understanding of the rhesus macaque genome, shedding light on the evolutionary relationship between humans and chimps. The findings also reveal the significance of mobile elements in shaping genomes and their impact on diseases such as HIV/AIDS.
Researchers have built micrometer-sized solid-state lasers where a single quantum dot plays a dominant role in device performance. Correctly tuned, these microlasers switch on at energies in the sub-microwatt range, enabling highly efficient optical devices for telecommunications and computing.
Men with lower educational levels experience a significant drop in quality of life after prostate cancer treatment compared to those with more education. The study controlled for various factors, including income and healthcare access, to show that low education alone is associated with lower quality of life.
A study by UC Riverside researchers found that individuals who lip-read a speaker's face are better at identifying words in noisy sentences when they hear the same speaker again. This suggests that watching a person speak can create a familiar pattern of speech characteristics, making it easier to recognize and hear them later.
The draft sequence of the rhesus macaque genome will enable researchers to study disease progression at the genetic level, providing insights into human health and evolution. The findings also reveal unique aspects of the macaque's immune system response and genome organization.
A study by Dana-Farber Cancer Institute researchers found that inhibiting the ATM protein can kill tumor cells with dysfunctional DNA repair pathways. Individuals with one mutant copy of a key gene are also at increased risk of developing cancer, as their remaining gene becomes mutated in specific cell types.
The study found an unexpected link between the immune system and elevated lipids in mice, suggesting a potential new avenue for studying coronary heart disease. The researchers discovered that altering T cell expression levels significantly impacted cholesterol and triglyceride levels.
The Cluster constellation provides new insights into 'space tsunamis' disrupting aurora displays. Substorms, three-dimensional physical phenomena, affect GPS signals and are studied using data from multiple satellites.
A team of scientists led by Dr. Mary Schweitzer confirmed the presence of original protein fragments in soft tissue from a 68 million-year-old Tyrannosaurus Rex fossil. The discovery uses mass spectrometry to analyze ancient proteins, providing new insights into fossil preservation and potential medical applications.
A study by Berkeley Lab and UC Berkeley reveals that quantum mechanical effects enable nearly instantaneous energy transfer in photosynthesis. Quantum beats, coherent electronic oscillations, play a crucial role in the process.
Researchers create femtosecond adaptive spectroscopic techniques via CARS (FAST-CARS) to detect anthrax spores, using ultrashort pulses to minimize background noise. The technique can identify bacterial endospores in real-time, with potential applications in monitoring glucose levels and scanning the atmosphere.
Researchers at University of Toronto developed a device to test for proteins involved in human health and disease, revealing potential targets for pharmaceutical applications. The study identified six new protein interactors that regulate ABC transporter function, providing insights into diseases like cystic fibrosis and drug resistance.
Researchers used seismic imaging to detect layered structures within the Tonga subduction zone's mantle wedge, revealing unexpected features that contradict textbook models. The study suggests water and fluids played a key role in shaping the mantle structure, with implications for the formation of volcanic arcs.
Researchers found that patients who received Gleevec after surgery were significantly less likely to have cancer recurrence compared to those who didn't receive it. The study showed a 97% survival rate for patients on Gleevec, with only mild side effects reported.
Physicists at NIST have devised a system to generate paired photons with great efficiency over a wide range of energy, reducing noise from extraneous photons. The new microstructured optical fiber increases light intensity, making pair production more likely.
A UCLA study found a nearly 80% decline in the number of Latino graduates from dental schools between 1982 and 1999, despite a 42.7% increase in the Latino population. This shortage will result in fewer dentists serving Spanish-speaking populations, with limited ability to bridge language gaps.
The American Association for Cancer Research (AACR) has awarded its inaugural Team Science Award to a multidisciplinary team of researchers from the University of Michigan and Harvard Medical School/Brigham and Women's Hospital. The award recognizes their groundbreaking discovery of gene fusions in prostate cancer, which has significan...
A fossil trove discovered in a Kendall County cave may rewrite the region's geological history. The site preserves nearly-pristine plant spores, leaves, and scorpion parts, including needles from conifers dated to be the oldest ever found in North America.
Researchers at Bonn University have developed a software system called the Retina Encoder, which helps the brain interpret signals from retinal implants. The system learns to translate camera signals into a language that the brain understands, allowing blind subjects to perceive contours and orientation.
Scientists have identified a strong association between an increase in BMI and a variation of the FTO gene, which carries a 70% higher risk of obesity. The study found that people with two copies of the FTO allele are on average 3kg heavier than those with no copies.
A new University of Minnesota study reveals that young adults who engage in regular physical activity have a reduced risk of developing high blood pressure within 15 years. The research found that participants who exercised five times a week and expended 300 calories per session experienced a significant reduction in hypertension risk.
Researchers at Ohio State University discovered that bacteria can turn genes on or off to control their infectiousness. The proteins NusG and RfaH play a crucial role in this process, with NusG regulating nearly all gene expression in bacteria and RfaH controlling specific sequences of the genome during transcription.
Researchers found men are more likely than women to first look at a woman's face in sexual photos, while women focus longer on male-performed acts. Hormonal states also influence attention, with women using contraceptives looking more at genitals.
Researchers analyzed the macaque genome to identify genes that have evolved in humans compared to other primates, finding significant changes in hair and immune system genes. The study also identified genetic variations on the X chromosome, providing insights into human evolution and disease gene identification.
A national study from Tufts University reveals that college students know more about politics than pop culture, with half able to name their U.S. senator or representative and nearly two-thirds knowing at least one of their senators.
Researchers found that approximately 97% of patients who received imatinib after surgery did not experience cancer recurrence, compared to 83% of those who received placebo. Gleevec was well-tolerated by most patients and showed significant benefits in decreasing cancer recurrence.
Research reveals that athletes with acute lateral ankle sprains have significantly weaker balance ability when their eyes are closed. Wheelchair provision varies by demographic characteristics, with disparities found in the standard of care within the Veterans Health Administration. Near-infrared spectroscopy measures cerebral oxygenat...
Researchers found females outperform males in using landmarks for navigation, even with blocked testosterone levels. This study provides insight into brain development and may lead to better treatments for disorders like ADHD and Alzheimer's.
The rhesus macaque genome shows 97.5 percent similarity to both chimpanzees and humans, highlighting genetic differences between primates. Researchers identified 200 genes with evidence of positive selection during evolution, which may contribute to human-specific traits.
The completed Rhesus macaque DNA sequence has advanced understanding of primate evolution and will enhance medical research in various fields. The analysis revealed examples of duplicated segments, expanded gene families, and individual genes influenced by natural selection.
Research suggests that heightened risk taking during adolescence is driven by conflicting brain systems. The socioemotional system becomes more assertive during puberty, while the cognitive-control system matures later. This leads to a vulnerability window in teens where impulsive behavior can be triggered.
Researchers find that shared protons vibrate between molecules as local oscillators, creating distinct vibrational patterns associated with the bridging proton. The study reveals how the chemical properties of tethered molecules affect proton localization.
Research at University of Virginia Children's Hospital found that children with asthma are more likely to experience depression, anxiety, behavioral problems, and learning disabilities.
A cluster of six cases in central England suggests that human-to-human transmission can occur through social links and shared environments. Genetic fingerprinting identified the source case, which was linked to unpasteurized milk consumption, emphasizing the importance of disease prevention measures.
A simple questionnaire identified bullying behaviors in most elementary students, highlighting the need for early intervention and education. The study suggests that promoting positive peer pressure and attitude change can be effective in reducing bullying.
The study found that most current pay-for-performance programs focus on women's, children's, and adolescents' health issues, while new programs are shifting emphasis to chronic diseases like asthma and diabetes. The majority of existing programs operate in managed care or primary care case management environments.
Researchers have successfully sequenced tiny pieces of collagen protein from a 68 million-year-old Tyrannosaurus rex fossil, closely matching amino acid sequences found in present-day chickens. The findings support the long-debated proposal that birds and dinosaurs are evolutionarily related.
A recent report highlights the need for medical professionals to be trained in managing rape and sexual assault cases, particularly in the UK. The editorial argues that teaching future doctors about this topic could improve victim responses and increase convictions.
Scientists confirm size of hot gas disk around supermassive black hole, measuring its size as seven times the distance between Earth and Sun. The disk is found to be 10 times smaller than predicted event horizon, consistent with theoretical predictions.