The International HapMap Project has completed its second phase, tripled the amount of genetic variation assessed and describes up to 95% of common single-letter variations in the human genetic code. This increased density of identified SNPs allows researchers to better understand disease-associated genes and detect rare disease variants.
The Gerontological Society of America has awarded $70,000 in fellowships to seven outstanding doctoral students in geriatric social work. The Hartford Doctoral Fellowships provide recipients with dissertation grants and academic career guidance.
A study using a dynamic in vitro gastrointestinal tract system demonstrated that LIALDA tablets release 5-aminosalicylic acid (5-ASA) over a prolonged period in the simulated colon, with nearly 90% of 5-ASA released in the fasted state. In contrast, minimal 5-ASA was released in the stomach and small intestine.
Researchers have discovered a stable sex hormone signature in cells that may provide a more sophisticated way to determine sex than just identifying the presence of the Y chromosome. This breakthrough could lead to improved counseling for intersex individuals with ambiguous gender identities.
Researchers studying Holothuria glaberrima found that sea cucumbers can rapidly regenerate lost body parts by healing wounds with similar cellular mechanisms. This discovery may lead to new insights into repairing human tissues.
A new study from the University of Missouri-Columbia found that men engaging in predominantly low-impact forms of exercise have an increased incidence of osteopenia, a condition resulting in two times the risk of bone fracture. Regular weight-bearing activities can mitigate this risk and maintain healthy bones.
Researchers have identified epigenetic mechanisms involved in schizophrenia, pointing to potential new targets for medications. The GAD1 gene's role in producing the neurotransmitter GABA is also linked to brain development abnormalities.
A strain of bacteria resistant to all approved pediatric antibiotics has been discovered, according to researchers at the University of Rochester Medical Center. The 19A strain was found in children with persistent ear infections despite antibiotic treatment, highlighting concerns over potential long-term consequences.
Scientists have successfully measured the interaction between a single functional group and a carbon nanotube for the first time. The study found that the interaction strength depends on the electronic structure of the interacting molecule/CNT system, eliminating guesswork in designing new nanocomposite materials and devices.
Researchers developed a new near-infrared contrast agent that selectively marks hydroxyapatite crystals, allowing for the detection of malignant tissue. The swine trials demonstrated the effectiveness of real-time NIR fluorescence images in image-guided surgery.
Meis1 is required for maintaining leukemia stem cell properties in MLL leukemia, including self-renewal and differentiation arrest. The study provides new insights into the genetic underpinnings of MLL leukemogenesis.
A study by UC Davis found that nearly one-third of California's top public companies have no women at the top, despite a few firms having high female representation. The research highlights the need for more gender diversity in corporate leadership positions.
A team of researchers at Kansas State University is working to understand the ecology of E. coli 0157 and develop practical interventions to combat it in cattle. They are also studying salmonella, which causes bloody diarrhea in feedlot cattle and dairy cattle abortions, with a focus on reducing its prevalence.
UF researchers tracked HIV genetic journey from birth to death in four children with HIV, finding the deadly X4 form emerges just before AIDS. The study reveals thymus as key location for viral replication and development of a 'program' of virus evolution over time.
A team from Carnegie Mellon University and the University of Pittsburgh is studying the effectiveness of a wrist-mounted instrument called eWatch in measuring psychosocial stress exposure. The study will collect data on participants' daily activities, stress levels, and environment to understand how stress affects daily life.
A new national study found that bicycle-related injuries among children and adolescents result in nearly $200 million in hospital inpatient charges annually. The study also estimates that approximately 10,700 children are hospitalized annually for a bicycle-related injury, with an average length of stay of three days.
Stefanie LaRue, a 30-year-old LA resident, was diagnosed with Stage-4 Advanced/Metastatic Breast Cancer in 2005. She has since devoted her time to educating men and women about diagnosing breast cancer and preventing misdiagnoses in young women under 40.
The spleen's unique anatomical and immunological characteristics may explain why isolated splenic metastasis from colorectal carcinoma is rare. Experimental studies have shown that cancer cells injected into the spleen grow more slowly than those in other organs.
A new strain of Streptococcus pneumoniae bacteria has been detected that is resistant to all FDA-approved antibiotics and not covered by the pneumococcal 7-valent conjugate vaccine. This strain was found in nine cases, resulting in unsuccessful treatment with multiple antibiotics.
Scientists at UCSD School of Medicine identified a potential new therapy for chronic spasticity and rigidity, a painful condition often resulting from spinal cord injuries. They found that the AMPA receptor antagonist NGX424 suppresses spasticity and rigidity in rats, providing a novel means of reducing muscle tone.
Researchers at the London Centre for Nanotechnology discovered that even perfect structure in high-dielectric constant materials can lead to 'self-trapping' of charges, which affects device performance. This new understanding could open the way to suppressing undesirable characteristics in these materials.
A recent study found that methicillin-resistant Staphylococcus aureus (MRSA) infections are more common than previously thought, affecting certain populations disproportionately. The study estimated that 94,360 invasive MRSA infections occurred in the US in 2005, resulting in 18,650 deaths.
Dr. John Greally and his team will develop high-throughput assays using high-throughput sequencing to analyze the human epigenome. They aim to identify patterns of epigenetic regulators and gain insights into how these mechanisms control genes.
Acupuncture significantly reduces post-surgical pain and opioid use, with lower rates of nausea, itching, dizziness, and urinary retention. The treatment is also inexpensive and has virtually no side effects when performed by trained personnel.
In 1977, Carl Woese led a team that identified archaea as a unique domain of life, distinct from bacteria and other organisms. Their discovery opened up a new field of study and revolutionized biology, particularly microbial ecology.
ISU study reveals forests in Upper Midwest have lost tree species diversity and structural complexity since the mid-1800s. Deciduous trees like aspen and birch have replaced conifers, while smaller trees dominate modern forests.
A new baseline of invasive plants has been established in Puerto Villamil, Isabela Island, Galapagos, with 261 introduced species recorded, 39 growing wild. The study highlights the impact of invasive plants on native flora and fauna, with five species identified as potentially serious weeds that should be eradicated.
Research suggests that genetic factors significantly influence human brain structure and intelligence, particularly in regions involved in attention, language, and visual processing. Heritability estimates range from 70-90% for gray matter volume and 40-69% for the hippocampus.
The Institute of Medicine report outlines an action plan to ensure that cancer patients receive necessary psychosocial health services. Key findings include the need to address psychological and social side effects, increasing patient suffering and treatment adherence.
The SiCortex SC5832 enables research in astrophysics, climate modeling, and biotechnology at Argonne National Lab due to its unique capabilities and energy efficiency. The system boasts six 64-bit processors and a PCIexpress connection for fast communications.
A national survey of department chairs reveals over half report financial relationships with industry, including receiving support for research equipment and seminars. Clinical departments are more likely to receive industry funding, but many perceive no impact on professional activities.
A study found that administering a lidocaine lollipop reduced the need for sedation in the majority of patients undergoing upper endoscopy, improving patient comfort and reducing potential side effects. The lollipop proved safe and well-tolerated, making it a promising alternative to conventional lidocaine sprays.
Researchers discovered that specialized sugars are predominantly responsible for bone's characteristic toughness and stiffness, challenging previous beliefs about collagen's role. This finding could lead to new treatments for osteoporosis and other bone disorders by targeting sugar molecules.
A new UCLA study found that vulnerable elderly patients enrolled in Medicare and Medicaid received only 65% of recommended tests and treatments, indicating significant room for improvement. The study examined quality of care for common conditions such as depression, diabetes, hypertension, and heart failure.
Researchers found two genetic SNPs influencing metabolic efficiency in Pima individuals, which helped them survive the Sonora desert's harsh environment. These findings suggest that similar SNPs may contribute to obesity globally.
A University of Alberta study found that farm children are less likely to develop asthma compared to those living in non-farm rural or urban environments. The two-year cumulative incidence of asthma was 2.3% among farm kids, significantly lower than other groups.
Researchers have identified activin receptor-interacting protein 2 (ARIP2) as a potential target for treating liver fibrosis. The study found that ARIP2 negatively regulates activin signal pathways, which can help prevent collagen type IV production and alleviate liver damage.
A new book by Stevens Institute of Technology showcases the importance of leadership and people skills in project management. The book features three studies on the impact of leadership, project spirit, and conflict management on project success.
Researchers at Clemson University will develop an animal model to study bone loss caused by radiation therapy, which could lead to the development of therapies for cancer survivors. The study also examines the effect of space radiation on bone loss for astronauts, a growing concern for future space missions.
The world's oceans are becoming more acidic, potentially devastating for corals and marine organisms. Corals with chalky skeletons face declining calcification, affecting the marine food web and global oxygen production.
A recent analysis suggests that the US hospitality industry can play a crucial role in shaping a 'new Cuba' by investing in the country's tourism infrastructure. By doing so, US companies can help dispel distrust of America among Cubans and promote economic growth.
Researchers found barred owls thriving in Charlotte's urban areas due to open understories and birdfeeders attracting prey. The study suggests that suburban neighborhoods can serve as an 'uber-forest' for owls, contradicting previous assumptions about their habitat needs.
A recent study found that one in every 1,300 blood donors tested positive for dengue virus in Puerto Rico, highlighting the risk of transfusion-associated transmission. The disease is also grossly underreported globally, with an estimated 8 million cases and nearly 20,000 deaths projected annually.
A small-scale Mexican fishery has been found to kill as many critically endangered loggerhead sea turtles as all of the industrial fishing fleets in the North Pacific Ocean. The research led by University of California, Santa Cruz Ph.D. candidate Hoyt Peckham resulted in a voluntary turnaround in the fleet's fishing practices and the d...
Researchers have found that C60 molecules exhibit a wide range of molecular motions on surfaces, including spinning and bouncing. The motion is influenced by temperature and intercage rattling, which governs the friction-related properties of the bucky balls.
A study by researchers at Columbia University Mailman School of Public Health found that reducing class sizes from 22-25 students to 13-17 students in kindergarten through grade 3 nationwide generates more quality-adjusted life-year gains per dollar invested than most medical interventions. This results in significant lifetime revenue ...
UCSB researchers have discovered a key milestone in the evolution of animal vision, finding evidence of light-sensitive genes in ancient aquatic animals. The study, published in PLoS ONE, suggests that animal vision emerged around 600 million years ago.
Wind power variability poses a challenge for grid systems. Researchers are developing methods to measure wind farm capacity contribution and establish energy storage systems to manage this variability. The goal is to enable more efficient integration of wind power into existing power systems.
Research shows small-scale fishing operations pose a significant threat to the survival of north Pacific loggerhead sea turtles, with mortality rates reduced through local conservation efforts. The study highlights the importance of educating fishermen and removing dangerous gear to protect these endangered species.
A study by Massachusetts General Hospital found that institutional academic-industry relationships are common and pervasive, affecting departmental activities. Nearly 460 department heads reported having some type of industry relationship, with most involving consulting or intellectual property.
A study by Dr. Thomas Brewer found that blacks and whites give mitigation the same level of attention in most capital cases, but black jurors are significantly more open to mitigating evidence when a black defendant is facing killing a white victim.
Researchers found that bone marrow transplant is a successful treatment option for DiGeorge syndrome, with a 75% survival rate. The study also suggests that the thymus may not be necessary for immune development after birth.
A study of 151 HIV-positive patients found a low prevalence of H pylori infection compared to HIV-negative patients. The researchers suggest a different mechanism for chronic active gastritis in HIV-positive patients, potentially related to opportunistic infections rather than H pylori.
Researchers have created a layered material that causes light to refract in the opposite direction, enabling flat lenses and potentially capturing images of DNA molecules. This technology, developed at NSF-funded research centers, holds promise for various applications such as chemical threat sensors and medical diagnostics.
Researchers at Penn State suggest a canal existed in the quarry, enabling stone transportation, and propose solutions to prevent water damage. Preservation efforts are crucial to protect the site's unique archaeological record.
Patients with severe psychiatric illness lose 25-30 years of life expectancy due to increased risk of cardiovascular disease, diabetes, heart disease, and stroke. Lifestyle interventions like healthy eating and exercise can be challenging for this population.
Scientists have created a method to target and destroy tumor cells by attaching folate to gold nanorods, which then burst through the membrane upon near-infrared light exposure. This triggers a complex biochemical mechanism leading to cell death.
A 6-year study found that using 3D/4D imaging to guide embryo placement resulted in a 10.04% increase in pregnancy rates for IVF patients, with an overall rate of 40.34%. The new technique targets the Maximal Implantation Potential (MIP) Point, where embryos typically implant and develop in natural pregnancies.
Researchers found that insulin levels affect dopamine systems in the brain, which are involved in drug addiction and neuropsychiatric conditions. In diabetic animals, amphetamine-induced dopamine signaling was disrupted, suggesting a link between insulin status and brain function.
Researchers used optical coherence tomography (OCT) to scan retinal nerve fibers, finding correlations with brain MRI scans and suggesting an inexpensive alternative for tracking MS. OCT scans can detect early optic nerve damage, potentially identifying MS before brain damage occurs.