Studies reveal connections between the serotonin transporter gene SLC6A4 and autism, as well as a potential link between the glutamate receptor 6 (GluR6) gene and the syndrome. The findings contribute to a deeper understanding of the genetic underpinnings of autism.
University of Minnesota researchers successfully genetically modify a mouse by injecting a transposon containing the gene for yellow coat color, utilizing the Sleeping Beauty transposase enzyme. This breakthrough technology has far-reaching implications for treating diseases such as cancer and genetic disorders, including hemophilia an...
Researchers discovered that hibernating squirrels don't exhibit an immune response to bacteria when injected with lipopolysaccharide, but their temperature spikes when they awaken from hibernation to 'check' for infections. This suggests that animals may arouse from hibernation to monitor and combat pathogens in the body.
A retrospective review of 6 cases involving HIV-positive infants whose mothers did not know their own HIV status revealed incomplete application of guidelines. The authors recommend universal HIV testing and counselling to prevent perinatal transmission, while a commentary discusses 5 critical steps needed for prevention.
A recent study has identified eight chromosomal sites that may harbor genes for hand OA, with the strongest evidence found on chromosomes 7p and 11q. The research used a genome scan of Framingham participants and their offspring to investigate genetic linkages.
A study by McMillan and Larson found that rock climbing decreases vegetation diversity on cliffs, with only 4% as many vascular plant species on climbed faces. The researchers also discovered that climbing increases the proportion of non-native plants, which can outcompete native species for resources.
A recent Ohio State University survey found that two-thirds of pregnant women believe walking and sex can induce labor. However, experts say these methods may not be effective and could pose health risks to the mother and baby. The study's author emphasizes the importance of waiting for natural labor to begin.
A Canadian study found that heavy marijuana use is associated with decreased IQ scores, but light and former use are linked to modest gains. The research, which followed 70 subjects over several years, suggests that the effects of marijuana on intelligence may be more complex than previously thought.
Researchers found that a network of lay health advisers increased mammography use among rural black women over age 50 by 6 and 11 percent, respectively. The program's effectiveness in boosting breast cancer screening rates was demonstrated through data from the North Carolina Breast Cancer Screening Program.
Researchers found that asymmetry is evident in Taita thrush populations before decline, allowing for prediction of vulnerability. Asymmetry increased with habitat disturbance levels, but only certain populations showed a lower survival rate, highlighting the need for conservation action.
A study found that female injection drug users in Vancouver with high-risk behaviors like daily cocaine use and unsafe sex were more likely to convert to HIV. The authors emphasize the need for sex-specific prevention initiatives due to alarming rates of HIV infection among Aboriginal women, twice as high as in non-Aboriginal populations.
A team of researchers at the University of Pittsburgh has discovered a gene mutation responsible for hereditary gingival fibromatosis (HGF), a rare condition characterized by gum overgrowth. The discovery may lead to new therapies, including tissue engineering, and could have implications for treating common dental problems like period...
Researchers found that snakes relying on ambush foraging are more likely to be threatened due to habitat destruction and prey scarcity. The study identified six species not listed as threatened but with similar ecological traits, highlighting the need for closer management.
A study found that traditional floodplain forest restoration may decrease bird diversity, with some species preferring uncommon tree species. The researchers recommend replanting floodplain forests with rare and heavy-seeded trees to support a diverse avian community.
Ohio State University engineers designed a generic pipe adapter to diagnose and eliminate whistle noise in vehicle engines. The adapter reduces sound levels by up to 30 decibels, saving automakers time and money.
Researchers at UNC Chapel Hill have found a way to tap into the gene-silencing process RNA interference to identify key parts of its machinery. This breakthrough could lead to the development of new treatments for cancer and other serious illnesses.
New research reveals that Mexico's protected reserves for monarch butterflies are being destroyed due to increased timber harvesting, threatening the species' survival. Despite government protection decrees, logging has continued and even increased in some areas, with degradation tripling since 1986.
A recent study by Ohio State University found that the DentiPatch, a small adhesive patch containing lidocaine, delivers longer and deeper relief from dental pain. The patch's anesthetic effects last up to 45 minutes, whereas traditional gel-based treatments only last about a minute.
A recent study found that 26% of preschool children lived in three-generation households, with 39% having a history of maltreatment. The research also revealed that 32% of the young mothers were depressed. As these young mothers mature, role conflicts may arise between being a teenage daughter and a young mother.
Researchers discovered new genes that play a crucial role in the formation of oligodendrocytes, a type of cell responsible for transmitting nerve signals. The findings may lead to more accurate diagnosis and treatment of brain tumors, as well as insights into diseases such as multiple sclerosis.
Researchers at UT Southwestern Medical Center have identified a critical gene, Bop, that controls the formation of heart chambers. The study found that deleting this gene in mouse embryos disrupted heart muscle cell maturation and right ventricle development.
A new UF study demonstrates improved aerobic capacity in healthy elderly adults following both low- and high-resistance exercise training programs. This challenges the conventional view that strength training is not effective for improving cardiovascular and respiratory performance.
The MESSENGER project has passed a critical design review and is ready to move forward with building its spacecraft. The spacecraft will study Mercury's composition, geologic history, and magnetosphere over a one-year orbit, providing valuable insights into the inner solar system.
A UCLA study found that 75% of HIV-positive women reported a positive change in their views of themselves, while 53% reported a shift in life priorities. The women attributed this change to coping with HIV infection, which made them feel wiser and stronger.
Methyl bromide fumigation is a better option than current treatments for killing anthrax, according to UF researchers. The method could have saved $23 million in cleanup costs compared to estimated methods.
Researchers successfully treated rats with chemical-induced Parkinson's disease using gene therapy, restoring normal limb movement. The treatment involves delivering two corrective genes into a specific brain region to prime the production of dopamine, which coordinates limb movements.
Researchers have found a way to efficiently study early blood-cell development using the pag-3 gene in both mice and the common worm Caenorhabditis elegans. The study revealed that knocking out genes in mice results in blood formation defects consistent with predictions made by the worm research.
A study of coral records from the South-West Pacific reveals that El Niño's behavior remained consistent during the Little Ice Age, with no impact on its strength or frequency. The research suggests that massive corals can provide valuable insights into past climatic phenomena.
A study by Pitt researchers found that men and women have different genetic markers associated with severe depression, which may lead to better diagnosis and treatment strategies. The findings suggest that sex-specific genes for recurrent major depression may be the rule rather than the exception.
Research tracking over 700 children from adolescence to adulthood found that adolescents watching more than one hour of TV daily were more prone to violence. The link remained even after accounting for other factors like childhood neglect and low family income. The study's findings contradict the common assumption that media violence o...
A recent study suggests that statins may inhibit calcium growth on aortic valves in elderly people, potentially reducing the risk of cardiovascular events. Researchers found that those taking statins had a 62% lower median rate of calcium accumulation compared to non-statins group.
A study published in Health Education & Behavior found that community programs aimed at preventing teen pregnancy can reduce birth rates. The implementation of these programs led to a 15% decrease in birth rate in one area, while the other saw a slight increase.
Researchers at The Wistar Institute discovered that the Epstein-Barr virus (EBV) uses a telomere-like system to survive within its host cells. This finding has significant implications for treating EBV-associated cancers, as inhibiting this mechanism could potentially inhibit tumor cell growth.
Researchers have identified the mechanism behind tamoxifen's side effects, which may lead to the development of safer alternative medications. The study found that tamoxifen and raloxifene work differently in various cell types, with potential implications for breast cancer treatment.
The world's largest and highest-performance nuclear magnetic resonance spectrometer has arrived at PNNL. This unique system will enable scientists to study basic molecular processes and make new discoveries in fields such as DNA damage, disease development, and protein interactions.
Researchers found that managed care is associated with improved integration of inpatient and outpatient care, leading to lower hospitalization rates for chronic conditions. The study analyzed California trends and found a strong association between patient access ratings and reduced hospital admissions.
A study by the American College of Emergency Physicians finds that emergency department visits increased 27% from 1990-1999, with critically ill visits rising 59% and urgent visits increasing 36%. The number of beds per population also decreased, exacerbating the problem.
Aging cells retire when their telomeres become too short to function, according to a new Rockefeller University study. The researchers found that protein TRF2 helps critically short telomeres function better, allowing old cells to live longer.
Researchers found that vitamin supplementation reduced intimal index growth after heart transplantation, a common cause of arteriosclerosis. Vitamin C and E also maintained stable coronary endothelial function.
Teenagers are more likely to drive safely when their parents set restrictions and monitor their activities. The study found that adolescents who lack self-control or engage in deviant behaviors are at a higher risk of driving dangerously.
Researchers at UC Berkeley have developed a technology for creating cheap plastic solar cells that can be painted onto any surface, enabling applications such as powering wearables or small devices. The efficiency of the solar cells is currently low, but the team believes it has the potential to improve with further development.
Researchers discovered the ancestral role of VEGF protein guiding developing blood cells to their destinations. The findings suggest that blood vessels may have evolved from blood cells, a theory supported by studies on fruit fly embryos.
A new NIAID study found that diluting smallpox vaccine can expand the US vaccine supply fivefold, providing more protection against a potential outbreak. The trial used a freeze-dried live vaccinia virus vaccine and resulted in high take rates with minimal side effects.
A team of scientists from the University of Maine discovered a slow-growing sea urchin variety that never reaches legal size for harvesting in Maine's coastal waters. This finding suggests that harvesting legal-sized urchins could cause a shift in the population towards non-harvestable stocks.
Joanna Fowler has made significant contributions to positron emission tomography (PET), including the development of fluorine-18-fluorodeoxyglucose (FDG) and radiotracers for monoamine oxidase (MAO). Her work has improved our understanding of biochemical processes in addiction, aging, and drug action.
Researchers have discovered a new class of objects in two nearby galaxies, NGC 1023 and NGC 3384. These 'faint fuzzies' are thought to be about the same age as globular clusters but look and act differently, with sizes ranging from 50 to 100 light-years across.
Researchers from Oregon State University and others have found that Antarctica's ice sheets played a significant role in causing the Earth's sea level to rise by up to 70 feet in less than 500 years. This finding highlights the pressing need for better understanding of Antarctica's huge ice sheets and their stability.
A population study found that hypospadias was more than 20 times as common in boys whose mothers were exposed to DES during pregnancy. Research on exposure to DES may be relevant to current concerns about weaker oestrogens in oral contraceptives and other substances.
Researchers have discovered crystalline materials that can change shapes rapidly and act as ultrafast switches in optical computers, potentially enabling 3D TVs and unprecedented storage potential. The materials could be produced in bulk and reduced costs may be achieved through improved manufacturing efficiencies.
A team of researchers has discovered that the medial superior temporal area (MST) acts as both a compass and biological global positioning system, providing mental maps to help understand location and movement. This finding helps explain why people with Alzheimer's disease struggle to navigate their environment.
Researchers developed a Web-based display, CIP, to describe current icing conditions, which goes into service this week for meteorologists and airline dispatchers. A companion tool, FIP (Forecast Icing Potential), forecasts potential icing up to 12 hours ahead but is still in development.
Research on fruit flies reveals Rac genes control axon growth, guidance and branching in the human brain. The study suggests that large amounts of Rac GTPase protein are needed for proper branching, while less is required for growth.
Researchers found that women with a common mutation in the estrogen receptor alpha gene had dramatic increases in high-density lipoprotein (HDL), or the 'good' cholesterol. This discovery suggests that genetic testing may help doctors make better decisions about hormone replacement therapy for preventing heart disease.
A study found that long-term use of oral contraceptives may increase the risk of cervical cancer in women who test positive for human papillomavirus (HPV) DNA. Women using oral contraceptives for 10 years or more were four times more likely to develop cervical cancer, highlighting the importance of HPV screening.
Researchers have found that nornicotine, a breakdown product of nicotine, can catalyze certain chemical reactions in the body, potentially triggering adverse health effects. This interaction may also lead to reduced drug potency and increased risk of side effects for those taking medications while smoking or using nicotine products.
Research suggests that PGE2 can alleviate intestinal inflammation by inhibiting NF-\u00b8B and JAK/STAT pathways. Additionally, the study highlights the importance of targeting PGE2 receptors in the treatment of inflammatory bowel disease.
Scientists at University at Buffalo used chitinase to identify the extracellular transport signal of cholera toxin, a crucial step in understanding how bacteria cause disease. The researchers found that only a portion of a specific region of the protein was essential for its secretion.
Researchers report that a critical period between 5-21 days after birth is crucial for normal anxiety-like behavior, triggered by serotonin stimulation of the forebrain receptor. This timing enables long-lasting changes in brain chemistry or structure essential for normal emotional behavior throughout life.
A recent study published in JCI Journals reveals a significant connection between the brain and bone health, with implications for osteoporosis treatment. The findings suggest that certain neurological factors contribute to the development of bone disorders, opening up new avenues for therapy.
Only 25% of patients have been seizure-free for the past year, with many experiencing frequent seizures despite medication attempts. Vagus Nerve Stimulation Therapy (VNS) has shown promise in reducing seizures and improving quality of life.