Researchers from Virginia Tech have identified a region of virulence proteins that enables them to enter the cells of their hosts, suppressing the immune system and allowing infection to progress. The discovery may lead to new approaches for blocking infections by both oomycete and malaria parasites.
A recent study published in PNAS found that the human brain's perception of fast-moving objects is biased by the slow-paced world around us. This affects our ability to catch balls and make decisions in high-speed environments, with implications for road safety and robotic vision systems.
A small pilot study found that gabapentin reduced insomnia in recovering alcoholics and helped them stay away from alcohol more successfully. The study involved 21 insomniacs in recovery from alcohol dependence, with 30% of patients who received gabapentin relapsing to drinking compared to 80% of those on placebo.
A new study suggests that job growth is not the only factor controlling job attainment and poverty rates, as many barriers limit its effectiveness. In small metropolitan areas, jobs had a bigger impact on reducing poverty due to easier access to job opportunities.
Children under five who lived in households with unrelated adults were six times more likely to die from maltreatment-related injuries than those living with two biological parents. Young children need nearly constant supervision, and caregivers must prioritize their safety.
A $20 million award from the NSF will help Caltech scientists, led by Harry Gray, advance their research on developing nanoscale materials for solar-fuel power plants. The project aims to create efficient catalysts for the oxidation of water to oxygen.
A new study suggests that male circumcision can overcome cultural and safety concerns, increasing penile sensitivity and reducing risky behaviors. Implementing circumcision programs in eastern and southern Africa could prevent an estimated two million HIV infections over the next decade.
Researchers created a new prognostic model for traumatic brain injury using patient characteristics from the IMPACT database, including age, motor component of Glasgow coma score, and pupillary reactivity. The model also includes haemoglobin and glucose measurement, providing a more comprehensive prediction of outcomes.
The University of Georgia has been awarded a $9.2 million grant to explore the molecular underpinnings of human embryonic stem cell differentiation, aiming to identify genetic and protein modification patterns that accompany this process.
Early maturity and low parental nurturance, communication, and knowledge are linked to increased aggression in adolescent girls. Positive parenting skills can mitigate negative effects of early maturation.
A study published by the American Academy of Neurology found that eating broiled or baked tuna and other fish high in omega-3 fatty acids can help prevent silent brain infarcts, which are associated with dementia and stroke. The risk was lower for those who ate these types of fish regularly.
Researchers found that at least one cough and cold medication was used by 10.1% of US children in a given week, with exposures to decongestants and antihistamines being the highest. The study also revealed that the use of these medications declined from 12.3% in 1999-2000 to 8.4% in 2005-2006.
A study published in the journal AIDS has found that long-term antiretroviral therapy for HIV may offer protection against atherosclerosis. The Multicenter AIDS Cohort Study measured coronary artery calcification in nearly 950 HIV-positive and HIV-negative men, finding CAC scores were almost 60% lower in those on HAART.
The USPSTF recommends against routine prostate cancer screening for men over 75 due to insufficient evidence. In contrast, the task force found that chronic illness is common among uninsured Americans, affecting an estimated 11.4 million adults with conditions like cardiovascular disease and hypertension.
A study published in The Lancet Infectious Diseases found that the common HIV infectivity rate of 1 transmission per 1000 contacts is inaccurate and significantly underestimates actual transmission rates. The study estimated varying degrees of risk, including a 300-fold difference between different types of contact.
The Tevatron experiments have excluded a mass of 170 GeV for the Higgs boson with 95% probability, restricting possible masses and demonstrating sensitivity to potential signals. The combined data allows experimenters to cross-check and confirm results, improving their chances to observe the Higgs.
Researchers used a genetic technique pioneered at Stanford to analyze Y chromosomes from men in Tanzania and southern Africa. They discovered a novel mutation shared by some men in both locations, implying a common ancestor, and found that pastoralists first tended sheep and cattle in southern Africa around 2,000 years ago. This new ge...
A recent American Cancer Society study found that nearly half of cancer survivors used complementary methods such as prayer and meditation to cope with their condition. The study also revealed that women, younger survivors, and those with higher incomes were more likely to use these methods.
Researchers found networks of iron and nickel nanoparticles embedded within oxide scales, allowing carbon to diffuse through without defects. This discovery could lead to more corrosion-resistant alloys with ten times longer life.
Scientists have created the world's first all-integrated sensor circuit based on nanowire arrays, combining light sensors and electronics made of different crystalline materials. The method can be used to reproduce numerous devices with high uniformity.
A new pilot project aims to understand the eating habits of Latino migrant children and develop culturally appropriate interventions to combat obesity. The study will survey families in Ohio and Michigan farms and provide data to inform healthy food choices.
A study published in JAMA Network found that patients receiving rifampicin-based anti-tuberculosis therapy are more likely to experience virological failure when starting nevirapine-based antiretroviral therapy. In contrast, efavirenz-based ART was associated with similar virological suppression rates regardless of tuberculosis status.
The Leptotyphlops carlae is the world's smallest known snake species, with adults measuring just under four inches in length. This tiny threadsnake was discovered by Blair Hedges in a forest fragment on Barbados and is believed to be rare due to habitat destruction.
A study found that low-dose growth hormone treatment reduced visceral adipose tissue and improved blood pressure in HIV-infected patients with abdominal obesity. However, it also increased glucose levels during glucose tolerance testing, highlighting the need for caution when using growth hormone therapy in this population.
A University of Washington study reveals a massive intervention by the US prison system on American families, disproportionately affecting black males. The research found higher rates of infertility, infectious diseases like TB and HIV/AIDS, and increased migration to rural areas among black inmates.
A sociologist's analysis reveals that new prescription drugs are twice as likely to harm patients as to provide benefits superior to existing drugs. The study identifies institutional flaws in the FDA's review process, including under-funding and industry influence.
Research suggests that homeownership promotes political involvement, particularly among those living in distressed areas. Homeowners in disadvantaged neighborhoods are more likely to vote than renters and those in privileged communities.
Research by Marlese Durr and Adia Harvey Wingfield reveals that black professionals engage in 'emotional performance' to fulfill white colleagues' expectations, strengthening race/ethnic group solidarity. This emotional labor can lead to feelings of isolation and frustration among African American women.
Researchers used data mining to identify subtle differences in movement between rats with ALS mutations and controls, predicting the onset of disease two months early. This novel approach may enable testing of therapies to delay or prevent disease.
A study of 3,116 patients with and without a history of injection drug use found similar survival rates after 4-5 years of receiving HAART. The results challenge the prevailing notion that IDUs may not derive full benefits from HAART due to social instability.
A low-dose growth hormone treatment reduced abdominal fat deposits and improved blood pressure and triglyceride levels in HIV patients with lipodystrophy. However, growth hormone treatment appeared to increase blood glucose levels, particularly in those with impaired glucose tolerance.
The International AIDS Society–USA Panel updated treatment guidelines to reflect recent data on antiretroviral therapy. The new guidelines recommend starting therapy before CD4 cell count declines to less than 350/μL, with individualized regimens tailored to patient needs.
Research finds that male college students are more likely to commit property crimes than their non-college peers, defying the common association between education and reduced deviance. The study, which analyzed data from over 9,000 adolescents and young adults, reveals an increase in crime rates among college-bound youth after enrollment.
A study by UC San Diego researchers found that telemedicine leads to better treatment decisions for stroke patients compared to telephone consultations. The STRokE DOC technology enabled doctors to make correct decisions over 98% of the time, resulting in improved patient outcomes.
Sociologist Hiromi Ono's study reveals that children in step-families and other non-traditional families spend similar amounts of quality time with their parents as those in traditional families. However, married stepfathers are less involved with their stepchildren than biological fathers.
A study published in The Lancet Neurology found that telemedicine consultations resulted in more accurate decision-making compared to telephone consultations for patients with acute stroke. The study showed a 98% correct treatment decision rate for telemedicine versus 82% for telephone consultations.
Researchers have discovered that methadone has surprising killing power against leukemia cells, including those resistant to chemotherapy and radiation. The agent activates the mitochondrial pathway, inducing apoptosis in cancer cells without harming non-leukemic blood cells.
The Diabetes Checks & Balances program has shown positive outcomes in its first year, with 29% of participants receiving all four tests, including HbA1c and eye exams. This increase is nearly twice as high as in 2006, suggesting improved diabetes management among local residents.
Scientists at the University of Pennsylvania School of Medicine discovered that FOXA2 regulates genes involved in maintaining proper bile levels. The study suggests that increasing FOXA2 expression may be a novel therapeutic goal for treating diseases like primary sclerosing cholangitis and biliary atresia.
Researchers have discovered a mechanism to overcome the resistance of human glioblastoma multiforme cells to growth factor inhibitors by blocking inhibitor of apoptosis proteins. Combining drugs targeting IAPs with RTK inhibitors showed enhanced efficacy in inhibiting tumor growth. Additionally, targeting liver CB1 receptors may provid...
Researchers found that each type of cancer has distinct gene mutations that provide a 'selective advantage', driving tumor formation through evolution. This discovery improves our understanding of how evolution shapes life and lays the groundwork for new cancer treatments.
Current TB treatment regimens are insufficient in countries with high MDR-TB prevalence, leading to significantly higher failure and relapse rates. Studies reveal that for every 1% increase in MDR-TB, there's a corresponding 0.3% rise in new case treatment failure and a 1.1% increase in retreatment failure rate.
Researchers discovered an immune system protein called interleukin-8 (IL-8) as a powerful predictor of survival in children with septic shock. Measuring IL-8 levels can predict with 95% accuracy which children can survive through conventional antibiotics and therapies for at least 28 days following admission.
A 14-year follow-up study found that individuals with moderate to severe obstructive sleep apnea had a significantly higher mortality rate compared to those with mild OSA or no sleep apnea. The study, which involved a community-based sample of adults, provides strong evidence linking sleep apnea to all-cause mortality.
Scientists at Washington University in St. Louis have detailed the interaction between a superfluid and a superconductor, which could change our understanding of neutron stars' motion. The research reveals exotic behavior at the boundary between type I and type II superconductors, with unexpected effects on magnetic fields.
Researchers at University of Illinois found that chronic exposure to estradiol decreases working memory and response inhibition in rats. This impairment is linked to altered brain activity in the prefrontal cortex, a region crucial for planning and decision-making.
A new study published in Ophthalmology reveals that Asian men are at a higher risk of developing age-related macular degeneration (AMD) due to smoking. In contrast, high levels of outdoor activity in childhood may prevent or control myopia in children, according to researchers. These findings suggest that environmental factors play a s...
A new study reveals significant variations in prostate cancer care quality by region, hospital type, and race, suggesting areas for improvement to enhance patient outcomes. Compliance rates with standardized measures vary greatly among healthcare facilities, highlighting the need for standardization.
Researchers found that standard flu vaccine boosted immune function in patients with recurrent or metastatic Ewing's sarcoma and alveolar rhabdomyosarcoma, leading to higher five-year overall survival rates. The study suggests immunotherapy could be beneficial for high-risk pediatric sarcomas.
A study of 883 treatment-naïve HIV patients found that atazanavir/ritonavir once daily was as effective as lopinavir/ritonavir twice daily in reducing viral load and increasing CD4 cells. The once-daily regimen had less gastrointestinal toxicity but a higher rate of hyperbilirubinemia, supporting its use as a first-line treatment option.
A new study suggests that childhood obesity begins as early as age two, with over half of children reaching the overweight category by this age. Researchers found that obese children started gaining weight in infancy at a rapid rate, highlighting the need for early interventions to prevent future obesity.
A new MRI contrast medium, Gadofluorine M, has been developed to visualize inflammatory tissue damage in multiple sclerosis (MS). The study found that this medium enabled the detection of more inflammatory lesions in MS patients compared to conventional MRI images and contrast media.
A study of 490 black men found they ate an average of three servings of fruits and vegetables daily, despite the recommended nine servings per day. The researchers also identified barriers to food safety practices in restaurant employees, including inadequate training and resources.
A new antimicrobial surface coating, developed by a team of scientists, has shown promising results in reducing implant-related infections. The hybrid molecule combines two natural products with different modes of action, effectively hindering bacterial growth and attachment.
A new study published in the American Sociological Review found that individuals with personal connections to victims of the Iraq War or 9/11 terrorist attacks are less likely to approve of President Bush's performance, affecting both Republicans and Democrats. The pattern holds true across all demographics.
A new study found that targeting liver CB1 receptor may treat obesity-related conditions without brain-side effects, reversing severe insulin resistance and fatty liver in mice fed high-fat diets. The research indicates liver-specific CB1 is necessary for high-fat diet-induced fatty liver and related hormonal changes.
Researchers at the University of Michigan Hospitals found that 545 patients (0.6%) experienced allergic-like reactions after receiving nonionic iodinated contrast media, but 99% resolved completely within 24 hours with commonly used medications like diphenhydramine and corticosteroids.
A two-year study by UT Houston researchers found that 53% of women who tested positive for GBS during their first pregnancy were also positive during their second. The study suggests that retesting women in subsequent pregnancies may not be cost-effective due to the high recurrence rate.
Researchers discovered an extreme cooling event 12,700 years ago in Western Europe, with sediments revealing a short-term shift in atmospheric circulation. The findings suggest the climate system is not fully understood, with many puzzles remaining to be solved.
Researchers found that RTK inhibitors can be less effective in treating glioblastoma multiforme (GBM) due to cell death inhibition. Combining RTK and IAP inhibitors showed promise in inducing apoptosis in GBM cells, with enhanced efficacy in orthotopic mouse models.