A recent study published in the Journal of Clinical Periodontology found that quitting smoking significantly improves gum health for smokers with chronic gum disease. Over a one-year period, one-fifth of the patients who quit smoking experienced improved gum health compared to those who continued to smoke.
Researchers discover compound (-)-gossypol that targets Bcl-xL protein to induce programmed cell death in resistant cancer cells. The study suggests a potential treatment option for head and neck cancer patients who cannot undergo surgery.
Researchers tested oseltamivir on mice infected with H5N1 virus, finding that higher doses for longer periods improved survival rates. The study suggests that antiviral drugs like oseltamivir may be effective in preventing and treating avian flu.
A new study reveals that about 13% of ocean bacteria contain the light-sensitive proteorhodopsin enzyme, which harnesses sunlight's energy to survive in nutrient-poor environments. The discovery also sheds light on the potential for these microorganisms to metabolize sulfur and manufacture retinal, a molecule associated with vision.
A study analyzing reports of suspected drug-induced liver injury found that AST and bilirubin levels are key predictors of death or liver transplant in patients with severe drug-induced liver disease. Patients with hepatocellular liver damage had a higher mortality rate, highlighting the importance of monitoring these biomarkers.
The National Academies of Sciences, Engineering, and Medicine will release animal disease reports on July 18 at a news conference. The reports, embargoed until 1:30 p.m. CDT, will be available to reporters through the AVMA and National Academies
Consumers make assumptions about brands based on marketplace stereotypes, with a singular negative experience not weighing negatively on overall perception. The study suggests firms increase diversity in their workforces to capitalize on consumer evaluations
Researchers discovered that tumor cells physically attach to a protein displayed on the surfaces of endothelial cells, triggering angiogenesis. The finding suggests a new anti-angiogenic strategy by blocking both secreted molecules and cell-to-cell contact.
A NASA study finds that methane's impact on climate change may be significantly higher than previously thought, potentially accounting for a third of the gas's overall effect. The research suggests that methane emissions play a substantial role in increasing tropospheric ozone levels, which contributes to global warming.
Researchers criticize activist groups for derailing PREP trials, citing concerns about drug's efficacy and safety. The pause in trials may hinder development of female-controlled prevention technologies.
Resistant tumor cells can be sensitized to ONYX-015 replication by inducing a heat shock response, which could greatly augment the therapy's clinical utility. This study suggests that clinical strategies focusing on tumor-selective replication would favor the use of ONYX-015.
Research shows that oxytocin increases maternal aggression and decreases anxiety during lactation. In a study on virgin rats, oxytocin was found to reduce anxiety and promote social dominance behavior. The hormone's role in regulating reproductive systems and behaviors is also being explored.
Researchers uncover a previously unknown ecosystem beneath the Antarctic ice shelf, featuring a thriving clam community and methane-driven chemical life. The discovery provides valuable insights into the dynamics of inhospitable sub-ice settings and may lead to further exploration of remote undersea environments.
Scientists at MIMR have identified adult stem cells in the uterus, which could lead to new treatments for conditions like pelvic floor prolapse. The discovery may also aid in understanding how diseases of the uterus develop and further general studies into adult stem cells.
A new study found declining residential inequality between whites and African Americans since 1970, while Latino and Asian segregation remained stagnant or increased. The research suggests that changes in income equality may drive these trends.
Researchers at the Queensland Brain Institute have identified a key protein involved in regulating emotions and memories. Blocking this protein enhanced connections between cells in the amygdala, potentially leading to novel treatment strategies for anxiety disorders and other mental health conditions.
Researchers at Ohio State University found that neuropeptide Y (NPY) and cholecystokinin (CCK) peptides trigger different responses in taste bud cells, helping the brain distinguish between bitter and sweet tastes. The study's findings provide new insights into how our brains process taste information.
The partnership aims to develop a micro fuel cell system with potential industrial applications, offering advantages such as fuel versatility and fast start-up times. Researchers from both organizations will conduct joint research at each other's labs.
A new, low-cost device can accurately count CD4 cells in HIV-infected individuals, enabling early treatment decisions and improving patient outcomes. The portable handheld model is designed for healthcare workers in remote areas, addressing a critical need in low-income countries.
A recent study from the University of Pittsburgh highlights the challenges faced by paramedics in performing endotracheal intubation, a critical procedure that requires significant skill and experience. The research found that many paramedics perform intubations less than three times per year, with some not performing any at all.
A study of Nigerian healthcare professionals found discriminatory attitudes towards patients with HIV/AIDS, including refusal to care for or admit them. The authors highlight inadequate education and resource shortages as contributing factors, and call for targeted interventions to address these issues.
Estimates for the number of living species on earth range from 3.5 million to over 30 million, but only 1.9 million have been classified and described. A new study uses the species-area effect to estimate historical biodiversity in the fossil record, finding a strong relationship between species richness and geographic area.
Alpine meadows are shrinking in the Canadian Rockies, leading to reduced genetic diversity and increased vulnerability for butterfly species. Prescribed burning of forests may help increase meadow areas and protect these fragile ecosystems.
A new study suggests that ACE inhibitors, which reduce blood pressure and prevent diabetes-related complications, should be made available at no cost to seniors with diabetes. This could lead to increased use of the medication and significant savings for Medicare, with estimates suggesting $1,606 in lifetime savings per recipient.
A study of 497 emergency room patients found that repositioning during CT scans improved image quality for multiple trauma cases. By reorienting the patient's body position, artifacts caused by arms, electrodes, and cables were minimized, resulting in comparable image quality to routine imaging.
Researchers found that consumers prefer a balance between social interaction and non-interaction, becoming uncomfortable when the experience becomes too intense. The study utilized Social Impact Theory to demonstrate the influence of mere presence on consumer behavior in retail contexts.
A new XML-based architecture could improve access to chemical information in biomedical literature, reducing errors and increasing publication efficiency. The proposed system would link to open databases like PubChem, enabling readers to easily identify compounds mentioned in articles.
A study by Professor Chris McManus found a decline in postgraduate medical exam scores between 1997 and 2001, with a sharper drop in 2001 compared to 1996. This decline had implications for medical education, prompting further studies on performance in other exams.
A study suggests that major lenders can play a crucial role in helping hard-up borrowers avoid debt by working with 'near-prime' providers. By collaborating, these lenders can assist borrowers in upgrading to mainstream credit, which offers lower interest rates.
A new chemical sealant, poloxamer 188, has been shown to prevent heart failure in mice with muscular dystrophy by improving the heart's ability to relax and fill with blood. The treatment restored normal elastic properties in individual cardiac myocytes, reducing the risk of cardiac damage and failure.
Researchers found that all relatives with aortic valve disease had mutations in the NOTCH1 gene, leading to early developmental defects. The study suggests that targeting these mutations could prevent calcification and slow disease progression, offering potential therapeutic avenues for patients at risk.
Research suggests that certain genetic variations associated with asthma and allergies may lower the risk of glioblastoma multiforme (GBM), the most common type of brain cancer. The study found that individuals with specific polymorphisms on two genes, IL-4RA and IL-13, had a lower GBM risk.
CHAVI will focus on solving key questions about HIV interactions with the body and designing improved vaccines. The center will also evaluate promising candidates in small-scale clinical trials.
Despite similar educational backgrounds, IT women earn on average $15,000 less than men and are 2.5 times more likely to leave the industry. Organizations need to recognize these differences and provide support for part-time work arrangements, job sharing, and child-care subsidies.
Researchers from Pitt and Carnegie Mellon demonstrate virtual hazardous environments for search-and-rescue robots. The simulation provides realistic graphics and accurate physics to duplicate the problems faced by operators of real search and rescue robots.
A new study published in Virology suggests that some strains of monkeypox are more virulent than others, depending on their origin in Africa. The 2003 US outbreak was caused by a West African virus, which may have been less deadly due to its strain.
Researchers developed an artificial shark skin made of elastic silicone, reducing contact surface for barnacles to attach. This technology enables ships to 'self-clean' and reduces fouling by 67%, providing an alternative anti-fouling strategy crucial for the naval industry.
A study found that South Asian diabetics in Britain face challenges such as language barriers, cultural identity issues, and limited physical activity due to societal norms. The project aims to provide guidance on the use of interpreters in consultations to improve diabetes services for this community.
Scientists observed a chemical reaction in liquid methanol after hitting a molecule with a short laser pulse. The research confirms a long-standing hypothesis regarding the evolution of the molecule, providing new insights into chemical reactions in liquids.
Researchers found that ants use their two claws to interlock with waxy surfaces, enabling them to run efficiently. In contrast, glass rods require the presence of both claws and adhesive pads for ants to maintain traction.
Researchers at UCLA have successfully created a nano valve that can trap and release molecules on demand, controlling them at the nano scale. The device uses switchable rotaxane molecules attached to a tiny piece of glass, allowing for precise control over molecule movement.
A study in the American Thoracic Society's journal found that ethambutol can cause ocular toxicity, particularly in patients with renal insufficiency. The researchers recommended monthly visual acuity and color discrimination testing for patients taking high doses of the drug or receiving it for extended periods.
Researchers have discovered that phospholipids, a crucial component of cell membranes, directly influence the folding of membrane proteins. The absence of phosphatidylethanolamine (PE) led to misfolding and reduced protein activity in E. coli bacteria.
Researchers found that PGE2 up-regulates T-regulatory cells, suppressing immune function and fueling cancer growth. The study suggests using COX-2 inhibitors like Celebrex to augment immune responses in cancer patients.
Researchers have discovered a shared genetic core among three deadly parasites, which could lead to the development of new drugs targeting these diseases. The genome studies found that the parasites share approximately 6,200 conserved genes, providing potential targets for treatment.
Researchers develop a computer model simulating signal transmission at a synapse in chick embryos, finding that 90% of neurotransmitter release occurs outside of synapses. This discovery opens up new possibilities for cell-to-cell communication in the nervous system and challenges traditional definitions of synapses.
Researchers find biglycan acts as endogenous ligand of Toll-like receptor 4 in macrophages, increasing responses and leading to improved survival in sepsis. Mice lacking biglycan show increased survival benefit, highlighting the protein's pro-inflammatory role.
Researchers found that genetic factors explain only a small extent of social aggression (20%), with environmental factors such as parental behavior and peer influence having a greater impact. The study also suggests that reducing physically aggressive behavior in early childhood may help prevent the development of social aggression.
A panel of experts published recommendations to minimize the risk of altering non-human primates' cognitive capacity, focusing on grafting human stem cells into their brains. The panel concluded that healthy adult members of species distantly related to humans are least likely to experience morally significant changes.
Researchers at Ludwig Maximillians University report that AML1-ETO cooperates with FLT3 to induce rapid and aggressive acute leukemia in mice. This study supports a pathogenetic model of acute leukemia, which requires activating mutations in signal transduction pathways and transcription factors for leukemogenesis.
The National Academy of Engineering selected three Rice University researchers for the prestigious Frontiers of Engineering symposium. Researchers Deem, Drezek, and O'Malley will present their work in cutting-edge fields such as statistical mechanics, nanobiotechnology, and haptic interfaces.
The NIAID-funded CHAVI center will focus on understanding early stages of HIV infection, developing new research tools, and designing improved HIV vaccines. The center aims to accelerate the development of a safe and effective preventive vaccine for HIV/AIDS through collaborative research.
UCSB has been awarded two NIH Program of Excellence (PEN) grants in nanotechnology, totaling $25.5 million, to develop nanoscale agents for diagnosing and treating pulmonary artery disease and detecting vulnerable plaque. The projects aim to create targeted nanoparticles that can deliver diagnostic systems and therapeutic agents direct...
A new study links aging to genetic mutations in mitochondria, accelerating cell death and critical organ failure. Researchers found that accumulated mitochondrial DNA damage triggers cell death, leading to symptoms like hair loss, weight loss and vision impairment.
A comparative genomics study highlights the significance of non-protein-coding DNA sequences in complex species, revealing conserved elements outside protein-coding regions. The study also introduces a new computational tool, phastCons, to identify evolutionarily conserved DNA elements.
Researchers at NIST have developed an improved experimental X-ray detector that can detect X-rays across a broad range of energies with pinpoint energy resolution. The new detector uses quantum-level, transition edge sensors and improved temperature control systems, eliminating the need for constant recalibrations.
Researchers emphasize the need for early detection and monitoring of alcohol abuse to prevent dependence issues. Emerging biomarkers, such as genetic analysis, hold promise for accurate diagnosis and treatment compliance.
Despite conflicting studies on obesity, most Americans believe it remains a serious public health issue. Approximately 75% of Americans rate obesity as extremely or very serious, and the majority think experts have accurately portrayed its health risks. However, there is mixed trust in scientific experts' advice on weight control.
Research at Cold Spring Harbor Laboratory explores novel approaches to preventing muscle atrophy by optimizing exercise and nutritional interventions. The study highlights the importance of combining resistance training with specific nutrient profiles to maintain muscle mass and function.
A randomized controlled trial in Pakistan found that handwashing with soap reduced the incidence of pneumonia by 50% and diarrhoea by 53% in children under 5. Handwashing also prevented impetigo. The study highlights the importance of regular handwashing as a cost-effective technique for preventing childhood diseases.