Genome-wide studies identify a vast array of genetic variation that may account for at least one third of the genetic risk for schizophrenia. The studies found a shared chromosomal neighborhood between schizophrenia and bipolar disorder, implicating an area of Chromosome 6 in immunity and gene expression regulation.
Researchers found that foraging honey bees experience decline in associative learning with increasing age, but nurse bees remain unaffected. By switching tasks, foragers' learning performance improves, demonstrating remarkable plasticity in brain circuits.
A study published in JNCI found HPV vaccination to be non-cost-effective in the Netherlands due to low cervical cancer cases and deaths. The authors suggest vaccine price reduction could make it more cost-effective, but only if the vaccine's effectiveness increases.
A study published in the Journal of Thoracic Oncology found a significant difference in the quality and type of lung cancer information available online in the US and Japan. The US websites were more likely to discuss standard treatment methods and had stricter ethical policies.
Researchers identified a significant association between gene variations on chromosome 6 and schizophrenia risk. The study, combining data from 27,000 individuals, found evidence of immune function's potential role in the disease.
A recent study found that individuals with uncertain opinions tend to avoid contradictory information, while those with confident beliefs are more likely to seek out opposing views. Certain factors, such as personal values and confidence in one's own ideas, can influence an individual's willingness to consider alternative perspectives.
Researchers explore two bone marrow cell delivery methods to treat heart attacks and limb ischemia. Studies show that anterograde intra-coronary delivery improves left ventricle function, while bone marrow stem cell transplants increase blood flow in severely ischemic limbs.
A new class of black hole has been discovered, with masses between 100 and several hundred thousand times that of the Sun. The discovery, made by an international team of astronomers using XMM-Newton observations, confirms the existence of intermediate mass black holes.
Researchers have identified a connection between the immune system and schizophrenia, finding genetic variations that disrupt brain development, memory, and cognition. The study's findings hold promise for developing new treatments targeting specific molecular mechanisms involved in the disorder.
A team of international students and scientists will spend a month in the Siberian Arctic studying the transport and transformations of carbon and nutrients. The focus is on understanding linkages among ecosystems and how processes in one component influence others.
Researchers found 128 genes with varying expression levels in early clinical pregnancy compared to non-pregnant state. Gene expressions related to angiogenesis, vascular endothelial growth factor, and pyruvate metabolism were over-represented.
Researchers found that salamanders' regenerative cells retain the 'memory' of their original tissue, contributing only to the same type of tissue. This suggests that harnessing salamander's regenerative wonders may be within the realm of possibility for human medical science.
Two studies published in the July issue of Ophthalmology highlight the connection between normal-tension glaucoma and silent cerebral infarcts, as well as stealthy herpes simplex infections impacting corneal transplants. Silent cerebral infarfts are more common among NTG patients and can lead to rapid visual field loss.
Research by University of Warwick and University College London found that women's inflammatory markers vary significantly with sleep duration, while men do not. Short-term sleep deprivation studies suggest an elevated risk of cardiovascular disease in sleep-deprived individuals.
A new science review highlights multiple health benefits of dairy foods, including improved bone health, lower blood pressure and a reduced risk of obesity. Dairy consumption is recommended for children and adults to meet daily nutrient needs.
The Wellcome Trust has launched a £30 million initiative to strengthen research capacity in Africa. Seven international and pan-African consortia will develop institutional capacity for health-related research vital to enhancing people's health, lives, and livelihoods.
Researchers found that inbred bumblebee colonies suffer from decreased growth rates, lower offspring production, and reduced colony survival. The presence of diploid males, produced at the expense of female workers, has a detrimental effect on colony fitness.
The USDA Forest Service has established a new 25,000-acre experimental forest in the Tongass National Forest to investigate how climate change affects various forest resources such as timber and salmon habitat. The research aims to understand the impact of climate change on temperate rain forest ecosystems nationwide.
A recent study published in the New England Journal of Medicine found that Medicare Part D led to increased pharmacy spending among beneficiaries, particularly those with limited or no prior drug coverage. However, this increase was offset by decreased spending on other medical care services such as hospitalizations and doctor visits.
A study published in Human Reproduction found that women with endometriosis are at a higher risk of premature birth, C-sections, and other pregnancy complications. The researchers also found that women with endometriosis were more likely to have difficulty conceiving and required assisted reproduction technology.
A new study found that healthy volunteers who took proton pump inhibitors for eight weeks developed acid-related symptoms like heartburn and dyspepsia when the medication was stopped. The study suggests that long-term use of PPIs may lead to dependency due to rebound acid hypersecretion.
A recent study supports multiple genetic contributions to schizophrenia and bipolar disorder, explaining at least a third of the risk of inheriting these diseases. The research found common genetic variants associated with both conditions.
Researchers develop nanotechnology process to prevent bonding failure in composite resin fillings. By feeding minerals back into the collagen network, they aim to create a delivery system that can repair cavities on their own.
Researchers found that biochemical signals inhibit oligodendrocyte development, hindering myelin repair in multiple sclerosis. The Wnt pathway's role in myelin production and repair has been identified as a key factor in the disease's progression.
A new study finds that laparoscopic gastric banding surgery can improve and even reverse metabolic syndrome in obese adolescents, lowering their risk for future cardiovascular disease and diabetes. The procedure reduces weight, waist circumference, and blood levels of C-reactive protein and other markers of the condition.
A team of Penn State scientists has identified unique patterns in the DNA sequences surrounding insertions and deletions, suggesting mechanisms that may have generated these mutations. The findings could influence genetic counseling for couples seeking to have children.
In a simulated workplace environment study, VYVANSE CII improved ADHD symptoms of inattention, hyperactivity, and impulsivity, as measured by the Permanent Product Measure of Performance (PERMP) and ADHD Rating Scale (ADHD-RS). Adults taking VYVANSE showed significant efficacy at 14 hours after administration.
A multi-national group of investigators discovered that nearly a third of schizophrenia's genetic basis may be attributed to thousands of common genetic variants. These variants add up to a significant risk for developing both schizophrenia and bipolar disorder.
A study by researchers at Dartmouth College found that exposure to smoking in movies can lead to an increase in smoking among teenagers. The study, published in the July 2009 issue of Pediatrics, suggests that even positive characters who smoke have a stronger influence on youth than previously thought.
Researchers at Stanford University School of Medicine have identified a novel connection between the telomerase molecule and the Wnt pathway in stem cell regulation. Overexpression of telomerase's TERT protein enhances Wnt-inducible genes, suggesting a potential new target for cancer therapies.
A Mayo Clinic study found celiac disease has become four times more common, with undiagnosed cases associated with a nearly quadrupled mortality risk. The study suggests increased awareness is needed among physicians and patients to diagnose the condition earlier.
IGC scientists, led by Lars Jansen, discover protein CENP-N that triggers centromere assembly, providing new insights into accurate cell division. The discovery earns an EMBO installation grant and a paper in Nature Cell Biology.
A study published in SLEEP suggests that poor sleep is associated with depression in postpartum women, even after adjusting for other risk factors. The study found that nearly 60% of new mothers experienced poor global sleep quality, and 16.5% had depressive symptoms.
Scientists have identified PLA2R, a protein found in normal human glomeruli, as the target antigen in idiopathic membranous nephropathy. This discovery holds promise for developing a blood test to replace kidney biopsies and determining which patients are most likely to benefit from immunosuppressive treatment.
Biocatalogue.org provides a centralized registry of curated life science Web Services, enabling researchers to discover and use biological tools for treatments of H1N1 flu and cancer. The service is expected to significantly accelerate research in the medical, agronomical, and pharmaceutical fields.
Researchers at Tufts University developed a tissue regeneration application that maintains complete root coverage after three years with minimal pain and recovery time. This innovative approach uses platelet concentrate gel instead of traditional grafting methods, resulting in improved esthetics and patient satisfaction.
Research by Dr Teresa Valencak reveals that Brown hares regulate energy expenditure to maintain reproductive success, preventing excessive investment in offspring. This active control allows females to balance growth and body repairs with energy demands for reproduction.
Two newer surgical options, two-bundle grafts and inlay reconstruction, show promise for treating PCL tears, with one study suggesting improved results over traditional methods. Orthopaedic surgeons debate the best treatment approach, emphasizing patient-specific care and experience with PCL reconstructions.
Researchers have found that the circadian clock protein Period 1 regulates expression of the renal epithelial sodium channel in mice, leading to decreased sodium loss in urine. Additionally, a study on gene therapy revealed that TLR9-MyD88 pathway is critical for adaptive immune responses to AAV vectors. Another study on kidney repair ...
Researchers at UNC have redefined the process of X-inactivation, a genetic phenomenon that helps females avoid toxic genes. The new findings suggest Xist gene's role is more nuanced, and its absence may not trigger X-inactivation but rather allow genes to become active again.
Researchers found that oral treatment with melatonin before surgery can significantly reduce the occurrence of emergence delirium in children. Melatonin showed a direct dose-dependent effect on emergence delirium, with lower incidence rates at higher doses.
Over 40% of mangrove-restricted vertebrates are globally threatened, including birds, reptiles, mammals, and amphibians. The study urges research on predicting the impact of mangrove forest changes on these species.
Bilateral pallidal deep brain stimulation has been shown to improve movement skills and quality of life in some patients with dystonia-choreoathetosis cerebral palsy. The treatment resulted in sustained improvement in motor symptoms, but variability in response was observed.
Researchers found that patients with elevated serum creatinine, on life support, and children under 18 whose liver failure was caused by antiepileptics had poorer outcomes. A prognostic model developed by the study showed strong predictive ability for survival after transplantation.
Researchers at the University of Cambridge and UCSF have identified the Wnt pathway as a crucial determinant of brain stem cells' ability to repair damaged tissue. The study's findings open up new avenues for developing therapies that block the Wnt pathway, potentially enhancing remyelination in MS patients.
A study published in JNCI found that carrying one allele of SNP 2q35-rs13387042 increases the risk of breast cancer, particularly in ER-positive and -negative cases. The association was observed in over 31,000 women with invasive breast cancer and those without the disease.
The tropical rain band is shifting north at an average rate of 1.4 kilometers per year, which could lead to droughts in Pacific islands and reduced freshwater supplies by mid-century or sooner. The shift is attributed to the warming world, with greenhouse gases potentially accelerating this process.
Researchers genetically engineered mice to lack two genes responsible for repairing DNA damage caused by oxidation, leading to various types of tumors. The study emphasizes the role of DNA repair in preventing carcinogenesis.
Childhood cancer survivors are at greater risk of premature birth and postpartum haemorrhages, highlighting the need for close monitoring during pregnancy. Researchers also warn that fertility may be compromised due to radiation treatment and chemotherapy.
Researchers have found surprisingly strong long-range effects in certain electromagnetic nanostructures, which could add new challenges to the design of future ultra-high density data storage devices. The effects extend tens of nanometers and even up to 10 micrometers away from the antiferromagnetic material.
Janet Davison Rowley's work established cancer as a genetic disease through discoveries of recurrent chromosomal abnormalities in leukemias and lymphomas. Her findings revolutionized how cancer is understood and treated, leading to more precise diagnoses and effective treatments.
The NIST-developed stylus trap is a highly sensitive device that can sense small forces and transfer individual light particles with high efficiency. This technology has potential applications in quantum key cryptography, quantum computing, and surface characterization.
Researchers found that plants played a critical role in maintaining stable carbon dioxide levels during the last ice age, preventing runaway 'icehouse' conditions. The team's discovery highlights the importance of plant buffering agents in controlling atmospheric CO2 concentrations.
A study has found a distinct ECG-derived spectrographic phenotype associated with prevalent hypertension, stroke, and sleep-disordered breathing in patients with obstructive sleep apnea. The biomarker was detected in 23.5% of participants and was linked to increased risk of stroke and high blood pressure.
A study published in The Journal of Bone and Joint Surgery found that controlled glucose levels significantly reduce complications after total joint replacement surgery for diabetic patients. Patients with uncontrolled glucose were more likely to experience surgical complications, infection, blood transfusions, and longer hospital stays.
A pilot prevention program targeting fifth graders and their younger siblings will receive funding from the National Institute on Drug Abuse. The program combines family intervention with a non-stigmatizing focus on sibling relationships to decrease risky behavior and use of drugs among youth.
The American Dietetic Association has released an updated position paper on vegetarian diets, concluding they are healthy and nutritious for adults, infants, children, adolescents, and pregnant individuals. Vegetarian diets have been linked to lower blood cholesterol levels, reduced risk of heart disease, and improved cancer rates.
A recent study found that nearly all human embryos produced through IVF have chromosomal problems, rendering current preimplantation genetic screening techniques useless. Chromosomal instability is likely responsible for low fertility rates and high abortion rates, and could impact spontaneous pregnancies as well.
A new international partnership aims to improve African institutions' capacity to detect infectious diseases affecting humans and animals. The Southern African Centre for Infectious Disease Surveillance (SACIDS) will develop courses, research skills, and biosafety systems to tackle major livestock and wildlife diseases.
Researchers found that screening all babies with a physical clinical exam and ultrasound can significantly decrease the chance of developing early arthritis. Infants with hip dysplasia are at risk of long-term complications if left untreated, emphasizing the importance of early detection and treatment.
Researchers at Max Delbrück Center for Molecular Medicine have identified 115 genes associated with metastatic potential in colorectal cancer. The study found that BAMBI gene is more active in metastatic tumors, promoting metastasis formation through key signaling pathways.
Researchers have reconstructed sea ice extent from 13th century to present using historical records and climate curves. The findings show a significant decrease in sea ice coverage since the start of the 20th century, with some record-breaking low levels in recent years.
A new study found that estrogen action through GPR30 promotes breast tumor cell survival, rather than growth, and activates integrin α5β1 to create a provisional extracellular matrix. This suggests that targeting GPR30 may be an important step in controlling ER-positive breast cancer.
The study found that levels of IL-6 and hs-CRP varied with sleep duration in women but not men. Shorter sleep was linked to increased inflammation levels, while longer sleep was associated with poorer health outcomes.
A new three-way measurement method has been developed to predict disease metastasis in prostate cancer, combining PSA doubling time, Gleason score, and interval between surgery and detectable PSA levels. This improved prediction method may help determine which patients benefit from additional therapy after surgery.
A study in Spain found a 17% increase in maternal deaths since 1996, with the highest death rates among foreign women and those aged 35-44. The risk of death rose exponentially with maternal age, highlighting the need for epidemiological monitoring and studying causes to prevent deaths.
A treatment that significantly slows the progression of eye injury in people with type 1 diabetes has been found. The treatment uses an antihypertensive medication commonly prescribed to treat high blood pressure, and was shown to slow diabetic eye damage in over 65% of participants.
A new metagenomic approach quantifies microorganisms in environmental or medical samples, while a method for adhesive micropatterning offers a simple technique for generating patterns. These methods provide insights into microbial populations and cellular behaviors.
Scientists have found that mechano growth factor (MGF) stimulates muscle development by activating stem cells in response to exercise. MGF has great potential as a therapeutic treatment for age-related muscle loss and diseases such as muscular dystrophy, ALS, and cancer.
A new study found that exercise counseling leads to significant improvements in physical activity, fitness, and liver health in patients with nonalcoholic fatty liver disease. Patients who increased their physical activity had better metabolic indices, including lower liver enzymes and improved insulin resistance.
The Peter and Patricia Gruber Foundation awards $500,000 to Hall, Rosbash, and Young for their groundbreaking discoveries on the molecular mechanisms controlling circadian rhythms in the nervous system. Their research revealed a transcriptional feedback loop that oscillates during the 24-hour cycle, driving daily behavior.
A new study found that blood stem cell growth factor (GCSF) reversed memory impairment in mice with Alzheimer's disease by reducing beta amyloid deposits and promoting new neuron production. The treatment showed promising results in both bone marrow and brain, offering a potential therapy for the disease.
Two new techniques using lab-grown cells have shown promise in treating ankle injuries that don't respond to initial treatment. Autologous chondrocyte implantation (ACI) and matrix-induced autologous chondrocyte implantation (MACI) eliminate the need for osteotomy in some cases, reducing morbidity.
Researchers found that Period 1 regulates expression of alpha-ENaC in mouse kidney, leading to decreased sodium loss in urine. The study suggests a link between the circadian rhythm and salt balance, with implications for blood pressure control.
Researchers at Cedars-Sinai have developed a novel gene therapy that uses immune cells to target glioblastoma multiforme. A specific biomarker, HMGB1, has been identified as an effective tool to monitor tumor response to this treatment.
A Phase II trial shows that a low dose of oral interferon alpha preserves beta cell function in patients with newly diagnosed type 1 diabetes, delaying the need for insulin. The study found significant improvement in preserving insulin-producing beta cell function compared to placebo, offering hope for managing the disease.
Researchers at Yale University found that land plants stabilized atmospheric CO2 levels, preventing a deep frozen fate. This discovery supports the emerging view that plants should be recognized as a geologic force of nature, with important consequences for all life on Earth.
A new study finds that Richard Wagner used the acoustics of the soprano voice to create music drama with improved intelligibility and ease of production. Wagner's operas often featured vowels sung with an open mouth, which were matched to high notes in a way that enhanced both performer and listener experience.
A study found that diets high in protein and cholesterol increase the risk of hospitalization or death due to cirrhosis or liver cancer, while those high in carbohydrates reduce the risk. The study also identified associations between dietary nutrient composition and liver disease progression.