A Texas state dinosaur is facing a name change after research revealed it was misidentified as Pleurocoelus. The new species, Paluxysaurus jonesi, was discovered by Southern Methodist University scientist Peter Rose, who studied sauropod bones in central Texas.
Researchers found that lapatinib delayed tumor development and reduced the number of tumors in a mouse model of hormone receptor-negative breast cancer. Lapatinib is a small-molecule inhibitor that blocks tyrosine kinase activities associated with tumor formation.
The San Diego Epigenome Center will study epigenetic processes controlling gene regulation, differentiation in human embryonic cells, and DNA methylation. The goal is to develop more effective ways to prevent and treat disease.
A new study published in Value in Health estimates that Americans with diabetes had nearly 22% of hospital charges in 2005, totaling $171 billion. The study also found that individuals with type 1 diabetes were more likely to be hospitalized than those with type 2 diabetes.
Researchers used CT imaging to accurately reconstruct inner ear anatomy in extinct birds and reptiles, shedding light on their hearing abilities and behavior. The study found that Archaeopteryx had a similar hearing range to modern emus, suggesting it was more bird-like than reptilian.
Invasive plant species are thriving in altered Great Plains ecosystems, outcompeting native plants. Researchers will use biocontrols and other methods to control key invaders like Dalmation toadflax, cheatgrass, and Canada thistle.
According to ASN President James O. Hill, PhD, small changes in diet and physical activity can prevent weight gain and reduce the magnitude of the obesity problem. Examples of such small changes include taking the stairs instead of the elevator, walking extra 2,000 steps a day, and reducing food portion size by 5%.
A study by psychologist Jaime L. Kurtz found that college seniors who thought they had a limited amount of time left reported participating in more college-related activities than those who did not. This suggests that thinking about an experience's future ending can enhance present enjoyment and motivation.
Researchers developed an organic substance that attracts and supports cells necessary for tissue repair and can be directly injected into problem areas. The 'smart scaffolds' work by containing a protein that allows progenitor cells to adhere to damaged tissue and survive long enough to promote healing.
A new area of the cerebral cortex has evolved to enable complex movements, such as picking up small objects and using tools, in humans and higher primates. This new area is home to cortico-motoneuronal cells that directly control spinal cord motor neurons, bypassing limitations imposed by spinal cord circuitry.
Scientists at Argonne National Laboratory used inelastic neutron scattering to show that a new family of iron arsenide superconductors exhibit unconventional superconductivity. The research challenges conventional BCS theory and suggests that antiferromagnetic fluctuations may be responsible for the observed phenomenon.
Scripps research scientists discover that loss of HMGB2 protein causes progressive cartilage deterioration, a hallmark of osteoarthritis. The study provides a promising avenue for new treatment options and may lead to prevention or reversal of the disease.
A new study assesses the risk of disease transmission from Yellowstone bison to cattle and proposes cost-effective management solutions. The alternatives suggested by the study, such as buying grazing rights or testing all cattle within a special zone around the park, highlight substantial benefits and consequences.
Researchers have developed a non-invasive early detection device for cataracts, detecting subtle protein changes before the lens becomes cloudy. The device uses dynamic light scattering technology and has potential applications in reducing cataract risk through lifestyle changes and preventing age-related eye diseases.
A study of 153 healthy individuals found that those who slept less than seven hours per night were three times more likely to develop a respiratory illness after exposure to a cold virus. Sleep efficiency was also associated with developing a cold, with lower sleep efficiency increasing the risk by five and a half times.
Researchers from Boston College and Washington University School of Medicine report new evidence supporting the original Warburg Theory of Cancer. Abnormalities in cardiolipin content were found in all types of brain tumors, closely associated with significant reductions in energy-generating activities.
Portuguese scientists identify Slimb molecule controlling centrosome number in cells, associated with disease and cancer. Understanding this mechanism offers new avenues for researching tumour development.
A study published in Blood journal reveals that individuals with rare blood type Pk are more resistant to HIV infection, while those without it are more susceptible. This discovery paves the way for new therapeutic approaches to induce HIV resistance and promote further understanding of the pandemic.
Research from the University of Warwick and University of Hertfordshire found girls are two and a half times more likely to remain bullied at age ten than boys. The study also revealed that relational victimization increases as children grow older.
A study found that elderly individuals have a higher risk of hypertension during colder months, with average systolic blood pressure 5 millimeters of mercury higher in winter than summer. Blood pressure decreases over time are also strongly correlated with outdoor temperature, particularly in participants aged 80 and older.
A team of scientists has successfully sequenced the genes of the Tasmanian Tiger from its hair, revealing insights into mammal extinction and potential ways to prevent it. The study also opens up new possibilities for analyzing museum specimens and could potentially lead to the revival of extinct species.
A new mouse model for peanut allergy has been developed by Chicago researchers, mimicking symptoms of a human allergic reaction to peanuts. The model uses a mixture of whole peanut extract and staphylococcal enterotoxin B to stimulate an immune response, producing severe symptoms similar to those found in human anaphylaxis.
A study found that job strain is associated with a higher risk of stroke in Japanese men, particularly those with high job demand and low control. The relationship may be mediated by chronic diseases such as obesity and high blood pressure.
Researchers found that students who thought abstractly about tasks were more likely to procrastinate, while those who focused on the how, when, and where of doing the task completed assignments sooner. The study suggests that concrete thinking can reduce procrastination.
Researchers at Iowa State University used NCSS data to create a detailed Quaternary geologic map of the Des Moines Lobe, achieving strong agreement with existing maps. The map showcases finer detail and user-controllable scale, making it suitable for various disciplines.
A study found that women over 45 are significantly less likely to be placed on a kidney transplant list than their male counterparts, even though they have an equal chance of survival. The likelihood of being listed decreased incrementally with increasing age, from 3% for women aged 46-55 to 59% for those over 75.
Researchers found that tiny structures in the joint lining mimic antibody-producing lymph nodes and support specific antibody production, potentially leading to joint destruction. The processes can occur independently of the body's lymph nodes, suggesting a new treatment modality for rheumatoid arthritis targeting lymphoid structures.
Researchers at Johns Hopkins University have invented wireless microgrippers that can be used to grab and remove living cells from hard-to-reach places. The devices are actuated by thermal or biochemical signals, eliminating the need for electrical wires, tubes, or batteries.
A mouse model of neuropathic pain showed that immune cells producing opioids reduced symptoms, suggesting a novel approach for pain relief. Selectively targeting opioid-containing immune cells may provide natural pain relief and offer a new treatment option.
Researchers used scanning electron microscopy to study scorpion book lungs, revealing new variation and phylogenetic significance. The findings suggest a significant change in respiratory apparatus evolution early in modern scorpion history.
Researchers at Carnegie Mellon University developed a novel ultrasound display that allows doctors to view images within the object being scanned, reducing the need for visualization. This innovation improves accuracy in surgeries guided by ultrasound technology, which relies on combining direct perception and visualization.
The GSA Bulletin features studies on climate change sensitivity, Mars geology, and groundwater flow. Carbon-14 dating of Irish marine mud suggests the ice sheet was highly sensitive to small climate changes.
Patients with diabetes and dementia show different brain injury patterns compared to those without diabetes. Diabetes treatment affects the type and extent of brain damage in dementia patients.
Researchers at Penn State have developed tiny particle syringes that can deliver specific drugs to diseased cells, reducing toxins in the body. The microcapsules are flexible and can be filled with a variety of substances, making them a potential solution for targeted treatment.
Researchers have solved the structure of VP35, a key part of the Ebola protein that interferes with host cell defense mechanisms. This discovery paves the way for designing drugs that can bind to and inhibit VP35 function, potentially neutralizing the Ebola virus.
Researchers at Cedars-Sinai Medical Center developed a gene therapeutic approach that results in tumor regression and long-term survival. The approach uses proteins to draw dendritic cells into the brain tumors, stimulate an anti-tumor response, and increase survival time by six months.
Researchers have discovered a new mechanism that regulates the production of type I interferon, an important protein for clearing viral infections. This mechanism involves a protein-protein interaction between surface receptors on plasmacytoid dendritic cells and class I major histocompatibility complex molecules.
A University of Houston-led research team has developed a method to identify pollution sources using unique identifiers found in fine particulate matter. The findings suggest that people living close to highways and refineries are more likely to become seriously ill.
A study by the University of Rochester School of Medicine and Dentistry found that basic science research requires significant institutional support. The study calculated the total expenses for 25 new faculty members and found a shortfall of $39.9 million, requiring additional funding from other sources.
Researchers sequenced mitochondrial and nuclear DNA from museum specimens of the thylacine, a marsupial that was declared extinct in 1936. The study found little genetic variation between the two specimens, indicating the species was on the brink of extinction when it became extinct.
New studies have found a link between hormone therapy and brain shrinkage in postmenopausal women, with smaller brain volumes in areas involved in thinking and memory skills. However, hormone therapy was not linked to an increase in small vascular lesions or 'silent strokes' that are often the first sign of cerebrovascular disease.
A new national study shows that nearly 75 percent of patients hospitalized for a heart attack had cholesterol levels within recommended targets, but still at high risk. The study suggests that lowering guideline targets for LDL cholesterol and developing better treatments to raise HDL cholesterol may help reduce the number of patients ...
Researchers have identified a negative regulation loop that restricts the ability of T lymphocytes to divide, paving the way for a homeostatic production of CD4+ T lymphocytes. This discovery has major implications for patients undergoing intensive chemotherapy, bone marrow transplants, or infected with HIV.
Researchers are using DNA testing to determine the origins of medieval manuscripts, resolving issues with handwriting and dialect-based dating methods. By analyzing genetic data from parchment skins, scientists can identify similarities between manuscripts and pinpoint their time and place of origin.
Researchers found a brain region that facilitates rapid switching between learning and remembering, improving learning efficiency. The study used fMRI to investigate the neural mechanisms underlying this process, revealing complex interactions between different brain areas.
Researchers at Arizona State University have developed two new vaccine strains using Salmonella typhimurium as an antigen delivery system. These recombinant attenuated Salmonella vaccines (RASVs) trigger a powerful systemic immune response, offering a promising solution to infant bacterial pneumonia. The safety and efficacy of these no...
Researchers found that trained primary care physicians can perform colonoscopies with a low complication rate and high polyp detection rate, comparable to specialists. This fills the gap in colorectal cancer screening as the US population ages and demand for screenings grows.
Scientists estimate that roughly 1.4% of tropical humid forests were deforested between 2000 and 2005, with more than half containing 50% or less tree cover. New remote-sensing technologies are required to monitor the changes caused by selective logging and forest regeneration.
A study of 139 African-American women in Central Harlem found a significant link between exposure to alcohol advertisements and problem drinking behavior. The researchers also discovered that family history of alcoholism played a role in problem drinking, with advertising continuing to have an impact even after controlling for this fac...
The study found that there is no single answer to integration models, as trends vary across domains and countries. For instance, French second-generation migrants are more likely to attend university but drop out, while German children of Turkish parents face educational disadvantages but have a fair chance at skilled jobs.
A policy promoting cross-border health programs could contribute to reducing maternal and child mortality by leveraging existing resources and addressing interplay of elements within different health systems. Reducing maternal and child mortality requires focus on political, economic, social, and cultural factors.
Patients with pediatric-onset multiple sclerosis tend to have a higher yearly rate of relapses compared to those diagnosed in adulthood. This discrepancy may suggest greater plasticity and potentially more repair and remyelination in the younger nervous system.
The removal of cats from Macquarie Island, a World Heritage Site, has caused widespread environmental devastation due to the increase in the native rabbit population. The island's vegetation has been severely impacted, with nearly 40% of the area affected and nearly 20% having moderate to severe change.
A large prospective study published in the British Journal of Anaesthesia found that the risk of permanent harm following a spinal anaesthetic or epidural is lower than 1 in 20,000. The study also revealed that the risk of being paralysed by an injection is 2-3 times rarer than suffering any permanent harm.
Perturbation of lamin B1-Oct-1 interactions can affect the expression of genes regulated by Oct-1, leading to increased reactive oxygen species production. This could be a key mechanism underlying the aging process.
A new study reveals human predation is accelerating trait changes in commercially harvested species, with 20% smaller body sizes and 25% earlier first reproduction compared to previous generations. This process has been observed at a rate 300% above natural systems and 50% faster than other human influences.
A follow-up study found that workers exposed to lead at work showed greater cognitive problems after age 55, even when current blood levels of lead were controlled. The researchers linked cumulative exposure to mild deficits in spatial ability, learning and memory, and overall cognitive score.
Researchers discovered that immune cells producing opioids can alleviate neuropathic pain in mice. Meanwhile, a study found that Vitamin D3 might boost the efficacy of cancer immunotherapies by targeting specific immune cells.
A new study finds that soot on snow warms the snow and air by up to 1.2 degrees Fahrenheit, causing snowmelt weeks earlier in spring. This can lead to reduced water supply, aggravate winter flooding and summer droughts.
Researchers found that half of individuals under 50 with low short-term risk may not remain low-risk throughout their lives. Long-term risk estimation could provide new information on risk prediction, supporting its inclusion in clinical practice.