A new study from North Carolina State University found that calcium-deficient piglets developed fat cells instead of bone-forming cells, potentially leading to lifelong bone health issues. The researchers plan to investigate the effects of early life calcium deficiency on bone density and strength in a longer-term study.
Treatment with alteplase until 4.5 hours from stroke onset enhances favourable outcome chances, while late treatment is associated with reduced short-term survival and increased mortality risk. Early treatment initiation is crucial to maximize benefit and minimize risks.
A University of Colorado at Boulder researcher found that cities with larger increases in immigration between 1990 and 2000 experienced the largest decreases in rates of homicide and robbery. The study suggests that growth in new immigrant populations may be partly responsible for the decrease in violent crime.
A study found that childhood psychological disorders can diminish people's ability to work and earn as adults, with effects lasting up to 40 years. The conditions also lead to reduced income by about 20%, lower education attainment, and an increased risk of marriage problems.
A 12-year study by Wildlife Conservation Society found that fishery closures and gear restrictions in Kenya's coast increased revenue and net profits for local fishermen. The study revealed that closures attracted more preferred species and larger fish, commanding higher prices per pound, which boosted fishers' incomes.
A University of Arizona study found that spaceflight alters gene expression in mice, potentially leading to increased cell death and compromised immune systems. The research suggests that long-duration space missions to destinations like Mars may require new strategies to mitigate these effects.
A new book chapter by American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America highlights critical agricultural research areas receiving federal funding, including biofuel production, environmental quality, food safety, and nutrition. The chapter highlights $429 million increase in NIFA's compe...
A recent study found that age-related cortical bone loss is a significant contributor to osteoporosis, with 80% of fractures in old age occurring at cortical sites. Researchers propose targeting cortical bone loss as a potential strategy for reducing fracture risk and improving treatment outcomes.
Researchers at UGA used a patented signal-enhancing technique to detect and identify Group A rotaviruses in under one minute with over 96% accuracy. This method has the potential to improve public health by providing information on genotypes, aiding in epidemic monitoring and controlling disease.
A study published in Current Biology reveals the genetic and neural mechanisms underlying food choice in fruit flies. Flies select between protein-rich and sugar-rich foods based on nutritional needs, gender, and mating status, with female flies reacting faster to changes in diet than males.
A study published in PLoS Pathogens reveals that Listeria exploits transiently exposed molecules on intestinal cells to gain access. The pathogen uses a two-step mechanism involving internalin A and internalin B, which activate cell-surface molecules, allowing it to evade the body's defenses.
A new study reveals that radiation can change the microenvironment of breast cells, allowing abnormal cells to grow and become cancerous. The research found that low-to-moderate doses of radiation promote premature senescence in normal cells, creating space for pre-cancerous cells to grow.
A computerized system can accurately detect early eye problems related to diabetes and reduce the need for expensive human screenings. The system uses digital camera images of the retina to automatically identify signs of fluid and internal bleeding associated with diabetes damage.
The study found elevated concentrations of lead, arsenic, and other chemicals in New Orleans' soil and flood sediments, particularly in disadvantaged areas. The research highlights the need for long-term monitoring programs to establish baseline concentrations and distributions of contaminants in the environment.
The July-August GSA Bulletin highlights recent research on slow-slip phenomena in Cascadia, revealing a new understanding of how plate motion stresses are relieved. In southern Tibet, Permian extension- and arc-type magmatism is documented, challenging traditional views on the region's paleogeography.
The National Geodetic Survey is modernizing its positioning system to better capture changes in the Earth's surface, including sea level rise and subsidence. This upgrade will improve digital maps and support activities like levee construction, evacuation route design, and floodplain management.
Research suggests that physical prowess was the key factor in human mate competition, with men competing for dominance and access to mates. Men are stronger than 99.9% of women, despite average differences in size, due to increased muscle mass.
Paleontologists discovered over 1,500 exceptionally preserved soft-bodied fossils from the Ordovician period, expanding our understanding of sea creatures and ecosystems. The finds upend a long-held belief that Burgess Shale-type faunas disappeared at the end of the Middle Cambrian epoch.
Despite high rates of sexual dysfunction among CKD patients, little is known about effective treatments. The review found that drug treatment was helpful for male patients with erectile dysfunction but few studies evaluated safety and side effects in CKD patients.
Researchers develop micromasonry technique to assemble artificial tissues by encapsulating living cells in cubes and arranging them in 3-D structures. The method holds potential for building artificial tissue or medical devices with controlled microarchitecture.
Researchers found that females receiving CRT-D therapy had a 70% reduction in heart failure progression and a 72% reduction in death from any cause. Men received some benefit, but not the out-of-the-park results seen in women.
A consensus statement recommends chromosomal microarray (CMA) as the new standard practice for genetic evaluation of children with unexplained developmental delay, autism or birth defects. CMA consistently has a diagnostic yield of 15 to 20 percent, compared to five percent with G-banded karyotyping.
A new study suggests that setting time limits for hunting and fishing, rather than quotas, could help prevent wildlife population collapses. By limiting the number of days allowed for hunting and fishing, managers can better protect fragile species from over-exploitation.
A study predicts that rising global temperatures could lead to the extinction of 20% of all lizard species by 2080, with many species already living at thermal limits. The research, led by Barry Sinervo, used field data and modeling to forecast extinction risks for various lizard species worldwide.
Researchers have developed a non-invasive Respiratory Stress Response (RSR) test that can accurately measure the presence of significant coronary artery disease, with a sensitivity and specificity of 83% and 70%, respectively. The test uses a Pulse Oximeter to measure blood flow in response to paced breathing.
Researchers found that minor adjustments to estrogen receptor alpha and p53 genes can lead to precancerous changes in breast tissue. Testing healthy women for these gene variations may help predict future breast cancer risk.
Researchers have developed a new model to investigate the link between tobacco use and oral cancer, using carcinogens found in tobacco smoke. The study shows that this approach can lead to better understanding of oral cancer initiation, progression, and prevention.
The S-ICD System detected 100% of induced and spontaneous episodes of irregular heart rhythms, offering a viable alternative to traditional ICDs. The system's subcutaneous implantation eliminates the need for lead placement in or on the heart, reducing complications associated with current therapy.
A study using Goto-Kakizaki rats found that Roux-en-Y gastric bypass surgery increases post-surgical expression of PDX-1 and promotes regeneration of β-cells, leading to improved diabetes management. This research provides a new basis for surgical treatment of type 2 diabetes.
A new study published in the journal Neuron found that individuals with autism exhibit normal responses in their mirror neuron system, a brain area involved in social communication. The findings contradict previous theories suggesting a dysfunctional mirror system as the cause of autism's social difficulties.
A case report highlights the diagnostic significance of computed tomography (CT) and magnetic resonance imaging (MRI) for duodenocaval fistula (DCF). Noninvasive CT and MRI are suggested as a first-line investigation for diagnosis, improving patient outcomes.
Radiologists must consider the diagnostic value of multiplanar reconstructions to accurately diagnose superior mesenteric artery aneurysms. Contrast administration can help distinguish aneurysms from pancreatic masses, which may have similar density or intensity signals on unenhanced CT scans and MRI.
A new study reveals that population health plays a significant role in explaining geographic differences in Medicare spending, accounting for nearly one-third of the variation. The study's findings suggest that policies based on misperceptions of unexplained geographic differences may be flawed.
A team of researchers led by Malak Kotb has found that as dominant members of a bacterial community surrender to host immune defenses, they are replaced by a hyperaggressive, mutant minority population that thrives and takes over. This study provides new insights into the dynamics of bacterial evolution in live species.
Patients with chronic hepatitis C virus infection have a higher risk of developing hepatocellular carcinoma (HCC) if they experience increased insulin resistance, regardless of their presence of type 2 diabetes mellitus. Insulin resistance is associated with fibrosis progression and poor antiviral therapy responses in these patients.
A probiotic strain, B. lactis HN019, attenuates IL-8 mRNA level and reduces pro-inflammatory responses in intestinal epithelial cells. It also internalizes into cells and excludes enteropathogen adhesion, contributing to homeostasis of the intestinal epithelium.
Research found that forestry access roads can negatively affect walleye populations in remote lakes, with lakes containing the species needing more protection. The presence and location of roads also impact lake fishing quality and accessibility.
A Scripps Research study has found that the endocannabinoid system, which regulates memory and emotional reactions, can also dampen the effects of alcohol. The research suggests a potential target for developing drugs to treat alcohol addiction.
A Stanford University study found that public opinion experts' 'most important problem' question systematically underestimates Americans' priority on global warming and the environment. When reframed, however, this question reveals a significant increase in environmental concerns.
Researchers have discovered a way to reuse cigarette butts to protect steel from rusting, a process that can be costly and disrupt oil production. The study identified nine chemicals in the extracts of cigarette butts that appear to be responsible for this anti-corrosion effect.
Researchers at Johns Hopkins found that a simple frailty test can accurately predict surgical outcomes in older patients. The test assesses physical reserve and ability to withstand stress, identifying those at risk for complications and prolonged hospital stays.
A nationwide telephone survey found that peanut allergies in children more than tripled from 1.4% in 1997 to 4.2% in 2008. The prevalence of combined peanut or tree nut allergies also increased, with 2.1% reported in 2008 compared to 0.6% in 1997.
A novel behavior treatment for IBS significantly relieved symptoms in nearly 1/3 patients within four weeks. Rapid responders maintained improvement at three months despite increased symptoms when starting the treatment.
Researchers found that Cdk5rap2 and pericentrin work together to regulate neural growth in the developing brain. Loss of these proteins leads to genetic disorders characterized by abnormally small head circumference. The study may offer insight into human evolution and provide potential treatments for related diseases.
A study published in the World Journal of Gastroenterology investigated the effectiveness, safety, and outcomes of two popular esophageal metal stents: Ultraflex and Choostent. The results showed that both types of stents provided good palliation of dysphagia in patients with inoperable esophageal carcinoma.
Researchers design plastics to capture signaling molecules, blocking bacterial infection and biofilm formation. The approach aims to combat antibiotic-resistant bacteria and reduce the risk of infections.
NASA mobilized remote-sensing assets to help assess the spread and impact of the Deepwater Horizon oil spill. The agency deployed its instrumented research aircraft, ER-2, equipped with satellite observations to assist NOAA, USGS, and Department of Homeland Security in monitoring the spill.
A new human hepatoma multidrug resistant cell line, SK-Hep1/CDDP, was established to elucidate the biological mechanisms of MDR in hepatocellular carcinoma. This cell line can be used to test new therapeutic agents and explore targeted approaches for improving MDR cancer therapy.
Researchers identified protein Ash2l as a crucial partner of Tbx1, regulating early embryonic development and gene activity. The study provides insight into the biological events leading to chromosome 22q.11 deletion syndrome, which often includes congenital heart defects.
David Corr's $449,999 NSF CAREER award will support his research on harnessing cells' natural abilities to improve functional tissue engineering. He aims to develop fundamental understanding of environmental stimuli on cellular growth and fiber formation.
A new study demonstrates that a first-person perspective of a life-sized virtual human female body can generate a body transfer illusion, where subjects experience ownership of the virtual body. This finding contradicts previous research assuming visuotactile synchrony as the critical factor in ownership illusions.
Researchers from Boston University School of Medicine found that music enhances recognition memory for Alzheimer's patients, but not healthy older adults. The study suggests that understanding musical processing and memory may lead to effective therapies for this prevalent disease.
The American Chemical Society's Green Chemistry Institute is developing a universal standard to evaluate chemical products and processes based on their environmental performance. This standard will provide comparative data, making it easier for consumers to choose greener products.
Researchers found that four caged xanthones significantly inhibit CCA cell lines by increasing apoptosis-promoting proteins and decreasing apoptosis-inhibiting proteins. The compounds' chemical structure diversity reflects their biological activities, with isomorellinol exhibiting the highest potential.
The American Society for Microbiology will honor Scripps Institution of Oceanography pioneer Claude ZoBell's contributions to marine microbiology. The event, held on May 22, recognizes ZoBell's pioneering research career and his work laying the foundation for the field.
Researchers observed 40 doctors over 210 hours in an emergency department, finding that interruptions led to shorter task completion times and a fifth of tasks were not resumed. Interruptions occurred most frequently during documentation and direct care.
Researchers have rewritten Kirchhoff's current law to accommodate the unique properties of the transistor laser, enabling better understanding of photons, electrons, and semiconductors. The modified law fits data from the device, predicting properties for integrated circuits and supercomputing applications.
The NIST-developed Phannie phantom is a plastic sphere filled with water-bathed grids of small magnetized spheres. It allows for accurate calibration of MRI machines, improving image quality and reliability. The phantom will help reduce medical costs by enabling consistent tumor measurements across patients and scanners.
Treatment decisions for patients with severe brain injury vary widely between medical institutions, driven by hospital priorities and financial incentives. The authors argue that providers should prioritize patient preferences and create open communication environments to navigate these complex decisions.
A team of researchers discovered that tobacco-free cigarettes can cause more DNA damage than tobacco products, making them potentially carcinogenic. The study found double-strand DNA breaks in human lung cells exposed to smoke from 'safe' cigarettes.