Researchers found that alcohol dependence and conduct disorder are associated with a high number of sex partners among young adults. The study found that 45% of those with alcohol dependence reported having 10 or more partners, compared to 37% of those with conduct disorder.
Geologist Bruce Marsh proposes that magma channels fractured the Earth's surface, providing a 'template' for later erosion to create valleys and mountain ranges. The discovery in Antarctica's McMurdo Dry Valleys dates back at least 180 million years, shedding light on land-surface evolution.
Vaccinating children under 2 with pneumococcal vaccine has been associated with decreased hospitalizations from pneumonia and reduced healthcare expenses. The vaccine is recommended for all children aged 2 months to 59 months, particularly those at increased risk for pneumococcal disease.
Serious head injuries among alpine skiers and snowboarders have increased over the past 15 years, with faster speeds and jumping maneuvers being a major contributor. Helmet use has been shown to reduce the risk of serious brain injuries by 22-60%.
A new study presented at AARC found that ramelteon did not exacerbate respiratory depressant effects in patients with moderate to severe chronic obstructive pulmonary disease (COPD). The study showed significant increases in total sleep time and sleep efficiency with ramelteon compared to placebo.
Research finds that elite rowers show a significant reduction in lactoferrin concentration after five months of sedentary lifestyle, but experience an increase in salivary proteins following moderate and high-intensity exercise. This study aims to test the effectiveness of nutritional interventions on the immune system.
A series of genes has been identified as protecting cells from the harmful effects of doxorubicin, a commonly used chemotherapeutic agent. The long-term goal is to develop ways to turn these genes off in cancer cells and on in heart cells to prevent or mitigate heart damage.
A study published by the American Academy of Neurology found that individuals with trouble reading quickly exhibit brain abnormalities in their white matter. The researchers discovered a specific type of dyslexia affecting these individuals, which was linked to disruptions in their white matter fibers.
People with BDD perceive themselves as ugly and disfigured, despite normal brains. Functional imaging reveals abnormal brain processing of visual details, with the left side activated more often than in controls.
A study of adolescent offenders found a new upper limit for ALT that is more sensitive for diagnosing liver disease. The findings suggest targeted interventions for at-risk youths, who are high-risk for HCV infection and obesity-related liver disease.
A new study found that a two-in-one test examining the nervous system and heart's electrical system can identify patients at highest risk of cardiac arrest or death after a heart attack. The REFINE study revealed that combining findings from one simple test makes it significantly more likely to identify high-risk patients.
Researchers found that nonmyeloablative stem-cell transplant patients have similar outcomes regardless of whether they receive related or unrelated donor cells, with no significant differences in mortality rates. The study suggests that the combination of immunosuppressive drugs and mini-transplant biology may be responsible for the co...
Researchers at Karolinska Institute have identified a new source of dopamine cells that provided marked benefit when transplanted into mice with Parkinson's-like disease. Wnt5a-treated neural stem cells may be an efficient and safe source for DA cell replacement therapy in individuals with PD.
The Global Health Group, led by Sir Richard Feachem, will focus on malaria eradication and private sector strengthening in developing countries. The team aims to overcome current bottlenecks and test new approaches on a large scale.
A new study suggests that nearly 60% of the US is at high risk for zebra mussel invasion due to low calcium levels in streams and lakes. The invasive species could spread rapidly through connecting waterways and recreational boating, causing millions of dollars in damage and ecological harm.
A recent study found that only 14% of arm pain is likely to be caused or aggravated by arm straining activities, contradicting previous data from Labour Force Surveys. The survey results indicated that nearly half of respondents experienced arm pain in the past year, with many attributing it to their job.
The American College of Physicians emphasizes the need to balance performance incentives with patient-centered care. Pay-for-performance programs may neglect complex patient needs, particularly for elderly patients with multiple chronic conditions. ACP advocates for a more nuanced approach that prioritizes patient welfare and preferences.
A new national map assesses the risk of zebra and quagga mussel invasion in US waterways, with nearly 60% of land areas classified as high-risk. The map uses calcium concentrations to predict mussel distributions, highlighting regions where management resources should be targeted.
Researchers found that disorganized white matter in the brain, particularly circuitous connections and poor organization, may cause slow reading in individuals with dyslexia. The study suggests that white-matter integrity and organization play a crucial role in reading fluency.
The job situation for 2006 chemistry graduates is 'reasonably good' according to the American Chemical Society. The median salary for full-time, permanent employment for bachelor's graduates remained at $35,000. However, salaries for master's and Ph.D. graduates experienced significant declines.
The James Webb Space Telescope has successfully completed its preliminary design review, verifying the integrated performance of its Optical Telescope Element. The telescope, set to be the premier space observatory of the next decade, will study various phases in the universe's history.
Two studies found that genetic variants in metabolic genes impact cholesterol metabolism, while Crohn's disease contributes to atherosclerosis. Researchers also identified a potential treatment for bile acid disorders using FXR targeted therapies.
Research from the Monell Center found that breast-feeding confers an advantage in acceptance of foods during weaning, especially if mothers regularly eat those foods. Repeated opportunities to taste fruits and vegetables enhance acceptance and intake, even for formula-fed infants.
A study by American Cancer Society researchers found significant disparities in breast cancer diagnosis, particularly among uninsured and African American women. They are more likely to miss axillary lymph node assessments, which help determine stage and guide treatment decisions.
Researchers at MIT have developed a method to create three-dimensional microparticles using ultraviolet light, offering unprecedented control over size, shape, and texture. The particles can be designed with specific chemical properties, such as porosity, making them suitable for use in medical diagnostics and tissue engineering.
A new study published in JCI Journal has found that CP-31398, a compound that binds to mutant forms of the p53 protein, can prevent and treat UV light–induced skin cancers in mice. The study also demonstrated that CP-31398 increased p53 function in human skin cancer cells expressing a mutant form of p53.
Researchers from IRD, CNRS, and Universities worldwide studied oxygen isotope compositions to identify rubies' sources. They found 62% came from mantle origin and 20% from deep continental crust, improving prospecting strategies for these precious stones.
A University of Missouri-Columbia study found that weight gain, not the type of diet, is a key factor in developing diabetes in cats. The researchers compared glucose-tolerance tests between cats fed dry food and those fed canned food, finding no significant difference.
A CU-Boulder technology has been used to identify unexpected bacteria strains in the lung fluid of Denver children suffering from cystic fibrosis. The method uses nucleic acid gene sequencing to rapidly detect and classify pathogens found in the lungs, identifying over 60 species of bacteria in samples from 28 patients.
Two new protocols are introduced to examine critical stages of early embryogenesis using fluorescently tagged cells. These methods enable the visualization of subtle movements of individual cells during embryo development. Researchers can use these techniques to investigate mechanisms of brain and heart development in birds.
A mathematical algorithm has been developed to determine the most efficient path for a spacecraft's journey from point A to point B, regardless of distance or time. The algorithm was tested and validated on the 1997 Cassini Mission, which required numerous gravity assists and complex maneuvers.
Researchers found that young chimpanzees possess an extraordinary working memory capability for numerical recollection, surpassing that of human adults. This surprising ability is reminiscent of 'eidetic imagery,' a special skill present in some normal human children.
A recent study by the University of Bath found that smokers from poorer areas are using NHS stop smoking services and successfully quitting at a higher rate than those from more affluent communities. The overall proportion of smokers from disadvantaged areas accessing these services is also higher, suggesting that the NHS stop smoking ...
Researchers at Albert Einstein College of Medicine have found that perchlorate, an industrial pollutant linked to thyroid ailments, is concentrated in breast milk. High levels of perchlorate may deprive infants' thyroid glands of iodide, leading to mental impairment.
Scientists at Cornell's Baker Institute of Animal Health have successfully assembled and functioned a human-made device that mimics the biological pathway powering sperm, which could be used to release drugs or perform mechanical functions inside the body. The device uses a nickel-NTA chip to replicate the glycolysis pathway, allowing ...
Researchers found that bacteria carrying Shiga toxin have an evolutionary advantage against bacterial predators when co-cultured with Tetrahymena. The Shiga toxin kills Tetrahymena by binding to its surface receptor, and removing this receptor can prevent killing.
Researchers found that lead exposure in young rats hindered their ability to recover from brain injuries such as stroke. The study suggests that early lead exposure may compromise the brain's ability to compensate for injury and recover function.
A recent survey by LA BioMed researchers found that only 6% of emergency rooms in the US have all the necessary equipment and medicine for treating children. The majority of pediatric visits occur in non-child-friendly hospitals or rural facilities, highlighting a need for improvement in pediatric preparedness.
A study published in Neurology has found familial genes for sporadic hemiplegic migraine in people without family history. The research identified variants of three known genes in 18% of participants, suggesting genetic testing may help diagnose and treat the condition.
Researchers discovered a promising new agent, CP-31398, that restores mutant p53 tumor suppressor function and inhibits skin cancer growth in mice exposed to UVB light. The findings suggest potential for this approach as a sunscreen component for preventing and treating UV light-induced skin cancers.
A new marker, ALDH1, has been identified that can be used to detect and characterize cancer stem cells in breast tumors. These cells are responsible for fueling a tumor's growth and are linked to worse outcomes.
Researchers have discovered a novel method to produce dopamine cells for Parkinson's disease treatment by cultivating ventral midbrain neural stem cells with Wnt5a. This approach yielded substantial recovery in mice with PD-like disease, without tumor development.
A purified bacterial extract spray administered to laboratory mice provided powerful protection against all four major classes of pathogens, including anthrax and bubonic plague. The treatment was shown to stimulate a healthy immune response and increase antimicrobial polypeptides in the lung lining fluid.
Young children of depressed mothers are more prone to behavioral problems and injuries, according to US research. The study found that maternal depression significantly increases the risk of behavioral problems in children, which may lead to an increased risk of injury.
A study of 1,043 residents found that almost half had evidence of an anxiety or mood disorder five to seven months after the hurricane. The rate was highest among New Orleans residents, who were more likely to develop such disorders following physical adversity, property loss, and stressors associated with the slow government response.
A new study found that benzethonium chloride is more effective in killing methicillin-resistant Staphylococcus aureus (MRSA) bacteria than other antibacterial products. The compound kills common types of non-hospital MRSA bacteria better than others, with a genuine bactericidal effect against all four tested strains.
Researchers discovered Giardia's attachment mechanism relies on an osmotic suction cup, which can be disrupted by 'tonic shock'. The parasite's grip on intestinal tissue can be broken using a timed pattern of high and low tonicity, suggesting new treatment options.
A study of mitochondrial DNA reveals that piranhas' modern species originated from a recent diversification event triggered by marine incursions into the Amazon Basin. The researchers propose that factors like water quality and geographical history played a crucial role in shaping the diversity of these fish species.
A comprehensive study finds that climate change could lead to significant shifts in North American tree ranges, with potential decreases of up to 58% if species cannot disperse. The research used an extensive data-gathering effort and simulated two climate change scenarios.
Scientists have developed a retinal flow cytometer that allows for continuous monitoring of circulating cells in a mouse's bloodstream. This technology holds promise for treating multiple myeloma by enabling the testing of chemotherapy agents and treatment strategies.
Research suggests that males exposed to female sex hormones in the womb may be more likely to develop anorexia nervosa. Studies of Swedish twins born between 1935 and 1958 found a higher risk among males with female twin sisters.
Research suggests glucose powers self-control, which wanes when exercised. Replenishing blood sugar through sugary drinks can improve subsequent self-control efforts.
A new smartpen and paper technology developed by Livescribe aims to enable blind college students to learn complex STEM subjects like physics, calculus, and biology. The technology allows students to explore diagrams and figures through touch and audio, making it more accessible and interactive.
Researchers at Rice University have engineered a modified form of the anti-cancer drug imatinib, known as WBZ_4, which targets specific cancer-causing proteins without affecting normal bodily functions. This new compound shows promise in treating gastrointestinal stromal tumors (GISTs) with reduced risk of heart toxicity.
The American College of Physicians proposes a pluralistic system with government and private organizations ensuring universal access, or a single-payer system with lower administrative costs. The organization also recommends improving patient care coordination, disease prevention, and reducing healthcare administration costs.
The discovery of well-preserved fossils in a blue hole off the coast of the Bahamas provides insights into early life on isolated islands. Fossilized bones of land-lubbing crocodiles and tortoises, as well as plant fossils, have been found, shedding light on the impact of human arrival on island ecosystems.
A recent study by Dr. Shiow Y. Wang found that seven types of wild strawberries contain higher antioxidant levels and more potential to reduce cancer risk. The antioxidants in these 'super seven' strawberries may be useful in developing cultivars with greater anticancer potential.
Researchers at John Hopkins University used human embryonic stem cells to develop bone tissue that heals large skull defects in mice. The study demonstrates a potential application of hESC-derived mesenchymal cells in musculoskeletal tissue regeneration.
Research by Dr. Terri W. Starman identified the strongest survivors of postharvest experiences among popular garden plants marketed to consumers. High-quality plants may look healthy but decline in quality within a week, with most becoming unmarketable after three weeks.
Researchers found that VEGF-C gene therapy induced robust growth of lymphatic capillaries in mice, leading to functional collecting lymphatic vessels and improved lymph node transplantation outcomes. The treatment also showed promise in preventing systemic dissemination of metastases and improving patient safety.