Biologists predict that global warming and pollution will lead to more frequent die-offs of sea life, with diseases such as distemper and herpes virus spreading among marine organisms. The study highlights the need for interdisciplinary research to understand the impacts of climate change on ocean epidemics.
Three tiny teeth found in a piece of lower jawbone from a small Jurassic period mammal on Madagascar's island, contradicting widely-held ideas on mammalian evolution. The discovery more than doubles the age of the oldest known mammal from Madagascar and provides new insights into early branching events in the family tree of mammals.
Scientists at Emory University discovered a new family of enzymes linked to abnormal cell growth in cancer and cardiovascular disease. The Mox1 enzyme converts oxygen into reactive oxygen molecules that instruct cells to divide more rapidly.
Researchers found that NF-kappaB links growth factor signaling with proto-oncogenes Myc, Akt, and Ras. The molecular mechanism regulates cell growth and death, providing a built-in protection against cancer.
Researchers at Boston University developed a biologically inspired model to improve the fidelity of electronic devices by mimicking the noise-shaping abilities of neuronal networks. The system can effectively filter out unwanted information and identify desired signals over a wider bandwidth.
Scientists found that osteonectin, a bone protein, attracts prostate cancer cells and stimulates their invasion. This discovery has important implications for the treatment of prostate cancer and other bone-seeking cancers.
Researchers at Virginia Tech have created a new family of molecules with metal atoms inside a carbon cage. The discovery has significant implications for various fields such as medicine, optics, and electronics. The researchers found that they can produce these molecules in high yield and purity using a unique process.
Researchers at Arizona State University have achieved clear images of electron orbitals in Cu2O, verifying the hypothesis that both ionic and covalent bonding occurs in the material. The images show complex formations resembling a dumbbell shape, indicating the presence of metal-to-metal bonds.
Winglee's design harnesses solar wind to accelerate spacecraft, potentially reaching speeds of over 100km/s. The sailcloth is a magnetic field that repels ions and charged particles, exerting a small but steady force on the spacecraft.
Boston University scientists are developing a new form of microscopy that utilizes entangled-photon fluorescence microscopy to observe brain synapses. This technology holds promise for unraveling the century-old question of how dendritic spines function, crucial for cognitive processes like learning and memory.
Researchers have discovered a prehistoric virus in Arctic ice that could potentially re-emerge as the climate warms. The ancient tomato mosaic tobamovirus was found in ice cores dating back 500 to 140,000 years, raising concerns about the possibility of new epidemics.
Scientists create a new 'drought map' using National Oceanic and Atmospheric Administration (NOAA) satellite data to identify areas hardest hit by the drought. The map compares current surface temperature measurements to average temperatures over the last 10 years, showing whether an area has a normal, low, medium or high drought index.
A new study led by Dr. Don Redelmeier found that people overestimate the speed of vehicles in the next lane, leading to unnecessary lane changes. Staying in one's lane is safer and achieves similar travel times as more aggressive driving.
A recent University of Iowa Health Care study found that genetic factors and sex differences significantly affect human responses to endotoxin, with women more likely to experience declined airway function. The study examined 72 individuals without respiratory conditions and discovered a wide range of reactions to the contaminant.
Researchers at UNC-CH have developed a new gene mutation detection method that is simple and inexpensive. This technique allows scientists to screen for minute changes in the genetic makeup of humans, animals, plants or viruses.
A new radiation detector based on optical fibers has been developed to detect illicit plutonium. The device is light, flexible, and can be used in various applications, including airport security and medical treatments for brain tumors.
Researchers found that people with heart disease can expect greater benefits from lowering cholesterol levels than those without, with a 60% decrease in heart attacks and 80% decrease in deaths. Emphasizing secondary prevention is now considered more cost-effective due to these significant benefits.
Scientists have identified a genetic defect linked to insulin resistance and adult diabetes, providing a target for potential new treatments. The Q allele of the PC-1 gene is three times more common among insulin-resistant people and twice as frequent among adult diabetics.
Researchers at Purdue University have identified a protein segment crucial for the infection of cells by retroviruses and other viruses. By replacing just one amino acid in this region, they were able to eliminate fusion between the virus and its host cell. This discovery may lead to novel treatments to block the entry of these viruses.
Researchers have successfully developed and used several types of tools to analyze the fruit fly Drosophila melanogaster genome, extracting valuable information about genes and their function. The findings include a large-scale analysis of over 1,000 mutant fly strains, which identified more than 250 new genes.
The conference in Italy will discuss global change's effects on protected areas, including coastal erosions, water resources, and ski resorts. The event will also examine the impact of climate change on biodiversity and explore options for human intervention.
Wistar Institute scientists have determined the three-dimensional structure of a key enzyme involved in gene activation, GCN5. The study reveals details on how the enzyme carries out its function and identifies the structural adjustments needed for proper regulation of gene activation.
Researchers at the University of Pennsylvania Cancer Center found that bilateral prophylactic oophorectomy reduces breast cancer risk in women with a BRCA1 gene mutation. After 10 years, the incidence of breast cancer among women who had their ovaries removed was significantly lower than those who did not.
A large-scale study found that participating in church-related activities increased fruit and vegetable consumption among black church members. The study involved 50 black churches and over 2,500 participants, with the most significant increases seen among frequent churchgoers.
Cancer patients who participate in regular physical exercise programs show significant improvements in physical and mental health, including enhanced stamina, muscle strength, and pain management. The studies found that exercise has a positive effect on quality of life, including functional, psychological, and emotional well-being.
A majority of Americans believe certain types of mental illnesses cause violent behavior, with over 90% linking stress as a cause. This stereotype persists despite recognition of mental illness and its causes, leading to social distance and reluctance to interact.
A team of researchers has identified a single gene that causes familial advanced sleep phase syndrome (FASPS), a rare sleep disorder. The study found that the disorder follows a simple Mendelian inheritance pattern, making it easier to find the responsible gene and potentially leading to new treatments for circadian rhythm disorders.
The new center will conduct studies and educational activities to understand the underlying mechanisms of inflammatory diseases and their relationship to oral inflammation and systemic conditions. The research aims to improve diagnosis and treatment of patients by identifying similarities between inflammatory conditions.
A recent study found that older adults with strong social connections have lower blood pressure and are less likely to develop heart disease. In contrast, those with low social support experience higher resting blood pressures, even at a younger age.
Research published in Molecular Psychiatry found St. John's Wort to have a better antidepressant effect than placebo and comparable effects to standard antidepressants. The herb's favorable side effect profile may contribute to its advantages over other medications.
A new national survey reveals evidence of stigma toward mentally ill individuals, viewing them as less competent and more violent. The study found that people with schizophrenia are viewed as more unable to manage daily affairs than those with depression.
Researchers developed a technique to visualize nerve fiber bundles in the living human brain, providing detailed maps of connections between different areas. This study may lead to improvements in brain surgery, diagnosis, and understanding of neurological diseases, such as schizophrenia.
Researchers used DNA fingerprinting to identify 16 wine-grape varieties, including Chardonnay, as the offspring of Pinot and Gouais blanc. This discovery provides valuable information for grape breeders, allowing them to preserve old varieties and develop new ones.
Smokers who switch to lower tar or nicotine cigarettes for 'health reasons' are more likely to quit smoking compared to those who continue to smoke regular cigarette brands. Researchers found that 'switchers' were less dependent on nicotine and had a higher intake of fruits and vegetables.
Patients with fibromyalgia syndrome experience significant improvements in physical condition, symptom reports, and mental state when using non-drug treatments like exercise and cognitive behavioral therapy. Non-drug techniques were found to be superior to medication alone in reducing symptoms and improving daily functioning.
Researchers found that brain trauma causes microscopic damage in the brain, leading to the formation of Alzheimer's-like plaques. The study supports previous evidence linking brain trauma to increased risk of developing Alzheimer's disease later in life.
A new study found that a psychological intervention program boosted antibody levels and reduced stress hormone cortisol in women with breast cancer, leading to improved quality of life and higher chemotherapy doses.
The Lynx SAR system can produce one-foot resolution imagery at standoff distances of up to 55 kilometers, even through clouds and light rain. It can also detect moving targets and small surface penetrations, making it a significant advancement in surveillance technology.
The High Energy Transmission Grating Spectrometer has made the most precise measurements ever recorded of a star's corona, revealing new insights into stellar behavior. The instrument's success marks a major milestone for modern astronomy, enabling scientists to study the chemical composition and temperature of the corona with unpreced...
A study at Ohio State University found that parents continue to have a significant influence on their adolescents' behavior throughout the teen years. The research tracked 1,725 children for five years, revealing that the effect of friends and school grew during early adolescence, but parental influence remained steady.
A 10-year study by Dr. Morton Beiser shows that Canada's boat people were able to effectively cope with stress by temporarily suspending relationships with past traumas, thriving despite flight and exile.
Researchers at St. Jude Children's Research Hospital found the gene MRP4 is responsible for drug resistance in HIV patients, leading to lower drug concentrations and increased virus replication. This discovery could lead to developing new therapies to fight HIV infection and other diseases.
A new study suggests that estrogen supplementation in postmenopausal women may slow the progression of periodontal disease, protecting their teeth. The research found that estrogen deficiency and osteopenia/osteoporosis speed oral bone loss following menopause, leading to tooth loss.
A new method uses silicon capsules with precise holes to implant healthy transplant cells, eliminating the need for immunosuppression and reducing organ transplantation.
A new study reveals that up to 44% of adults believe in the concept of 'immanent justice,' where bad behavior leads to severe illnesses. The study, conducted by Ohio State University researchers, found that language plays a significant role in shaping beliefs on this topic.
Xie George Xu's 3D virtual man, VIP-Man, simulates radiation's effect on the skin, lens of the eye, optic nerve, and bone marrow with high accuracy. The model will enable accurate treatment planning for diseases requiring radiation therapy, revolutionizing radiation dosimetry in biomedical sciences and engineering.
Scientists discovered that microorganisms in basalt rock can reduce toxic hexavalent chromium to less toxic forms, especially in the presence of volatile organic compounds. The researchers found that certain bacteria, such as Arthrobacter oxydans, play a key role in this process.
Researchers at Denver's Eleanor Roosevelt Institute have identified a gene linked to obesity in mice, which also plays a role in humans. The study suggests that targeting this gene could lead to effective weight control and potentially even help with diseases like Down syndrome and epilepsy.
Researchers found that methylation of estrogen receptor genes may be linked to atherosclerosis and increased risk of heart disease in women. The study suggests that a genetic shutdown may contribute to the perplexing results of hormone replacement therapy on heart disease.
Research shows that childhood cancer survivors have lower marriage rates than the general population, but with varying rates depending on sex and race. Males are equally likely to marry as their non-survivor counterparts, while females are less likely.
A new medication nalmefene has been found to reduce the risk of relapse in alcohol-dependent individuals. In a 12-week clinical trial, patients who received nalmefene were 2.4 times less likely to relapse than those who received a placebo.
The UCSF Center for Health and Community will conduct four studies over five years, examining couples' decisions on assisted reproductive technologies, psychological effects, economic costs, and medical outcomes. The research aims to inform patients, physicians, and policymakers about infertility treatment options.
Researchers at UC San Francisco found that activated pain nerve fibers dampen the inflammatory response's first line of attack, preventing chronic diseases. The study suggests that pain acts as a negative feedback control of inflammation, which can help prevent chronic inflammatory diseases.
Researchers at The Jackson Laboratory have identified a chromosomal region that interacts with the tub mutation to prevent deafness in the tubby mouse model. The region, known as moth1, maps to mouse Chromosome 2 and was found to protect C57BL/6J mice from hearing loss.
Researchers found aggressive cancer cells generate their own vascular networks, potentially changing how cancers are treated. The discovery may lead to new non-invasive imaging tests and targeted therapies.
A study of heart attack patients in Latin America and North America found that those in Latin America received fewer diagnostic procedures and treatments, leading to higher mortality rates. The research highlights the need for further studies on practice patterns and outcomes in Latin America.
According to Bruce W. Tuckman, frequent quizzes can significantly improve students' grades by reducing procrastination and increasing motivation. Students with low GPAs who received weekly quizzes outperformed their peers by an average of 4-24% on midterm and final exam grades.
Researchers at the University of Massachusetts have created a switchable adhesive coating that relies on temperature changes to control its stickiness. This technology has potential applications in self-cleaning tennis racquets and golf club grips, improving performance and durability.
Scientists have developed a new 'Knockout' mouse model that closely mimics the human kidney disorder IgA nephropathy, providing a promising lead for treatment. The researchers found that supplying deficient mice with uteroglobin prevented the disorder from occurring, mirroring human cases.
UT Southwestern researchers have identified a severe enzyme deficiency responsible for some Sudden Infant Death Syndrome (SIDS) cases. The SCHAD enzyme deficiency affects an infant's ability to break down fatty acids, leading to a brain energy crisis and potentially fatal coma.