Researchers used a LEGO board with pegs to recreate microscopic activity in lab-on-a-chip devices. By analyzing the motion of beads through the array, they discovered that large particles followed deterministic paths and were influenced by phase locking.
A team of Texas and Brazilian researchers confirms that the fungus-gardening ant Mycocepurus smithii reproduces without males, with no evidence of male production or sperm storage organs. This makes the species one of the rarest examples of complete asexuality in the animal kingdom.
Researchers aim to discover proteins that cause MS, a debilitating disease affecting millions worldwide. The nationwide project could lead to effective treatments and cures.
Researchers found that brain predicts what eyes in motion will see, even before they move, allowing for a stable visual environment despite retinal image shifts. This remapping process enables continuous representation of locations across eye movement, facilitating the transition between current and expected images.
A UT Southwestern study found that minorities have worse clinical outcomes and higher rates of complications from carotid endartectomy, a procedure to prevent stroke. Higher rates of poor outcomes were due to elevated patient risk and the individual skill experience of surgeons.
Women may have a slightly higher risk of death than men in the 30 days following an acute coronary syndrome, but this difference appears to be due to factors such as severity and type of ACS. After adjusting for clinical characteristics and angiographic data, no significant difference in 30-day mortality was found.
A 2006 heat wave in California killed over 600 people and 25,000 cattle, with temperatures rising to the hottest one percent of historical records. The event was exacerbated by high humidity, which caused heat waves to last longer and fed on themselves until winds changed.
A common gene variant affects how people respond to Plavix, a leading anti-clotting medicine. This defective enzyme version reduces the drug's effectiveness in about 30% of the population, increasing their risk for strokes and heart attacks.
Researchers developed a hybrid approach to test how buildings collapse during powerful earthquakes. The new method is safer and far less expensive than traditional shake table tests, allowing for the testing of full-scale buildings. The study's results could help engineers design buildings that are less prone to sustaining damage.
A study published in Clinical Cancer Research found that a blood-flow metabolism mismatch in pancreatic tumors predicts poor patient outcome. The researchers used PET imaging to measure blood flow and glucose consumption, revealing a correlation between decreased blood flow and malignant tumors.
Researchers analyzed 17,398 patient records and found only 14 real disease associations with MGUS, not 61 as previously reported. This finding may reduce unnecessary testing and treatment for patients with MGUS.
Researchers found that people cling to their dreams until they're clearly shown the consequences of failure. The study involved students who were told varying levels of threat to their new dreams, with those receiving the strongest threat experiencing higher self-doubt and anxiety, leading them to drop their dream.
Women are slightly more likely to die from heart attacks due to a higher risk after severe presentations, while less severe cases show lower mortality rates. The study highlights the importance of considering sex in ACS research and delivery of care.
Men with coronary artery disease-induced congestive heart failure or heart attack who receive hormone therapy before or along with radiation therapy for prostate cancer have a higher risk of death, according to a study. However, in men without comorbidities, hormone therapy was not associated with an increased risk of all-cause mortality.
Research by Christopher Li and colleagues found a more than four-fold increased risk of ER-negative second cancers among breast cancer survivors taking long-term tamoxifen. The study confirms earlier findings suggesting a link between tamoxifen use and increased risk of aggressive second breast cancer.
A study reinterpretated proximal colon polyps as hyperplastic in 2001 revealed a significant inter-observer variation among gastrointestinal pathologists. This discrepancy highlights the need for clarification on the pathologic interpretation of serrated colorectal polyps and their clinical significance.
Researchers at the University of Maryland School of Medicine have identified a common gene variant associated with reduced response to Plavix, a popular anti-clotting medication. The study confirms a previously reported link between the CYP2C19 gene and decreased response to clopidogrel.
Researchers from UCLA and Pittsburgh found that obese individuals have a 8% less brain tissue than those with normal weight, while overweight individuals have 4% less tissue. This increased risk is linked to severe brain degeneration and cognitive decline.
A study found that typhoid fever cases in the US are often associated with international travel to the Indian subcontinent and are increasingly resistant to common treatments. The majority of cases were linked to travelers who visited friends or family, highlighting the need for improved vaccination coverage and prevention measures.
Researchers at the University of Leeds discovered a significant link between pre-eclampsia and dietary ergothioneine, a known antioxidant. The study found elevated levels of this compound in pregnant women with pre-eclampsia, suggesting its potential role in understanding the condition's cause.
The Constrained Vapor Bubble (CVB) experiment aims to understand heat and mass transfer operations in microgravity. It will provide valuable data for developing new cooling systems for spacecraft and electronics devices, as well as improving terrestrial heat transfer devices.
In Brazilian folk religion Candomblé, animal sacrifice plays a crucial role in the believers' requests and desires, believed to 'feed' supernatural deities known as orishas. The practice is fundamental to many religions, including Judaism, Christianity, and Islam.
Researchers at the University of Texas at San Antonio have published an 11-minute video in JoVE to demonstrate their novel hormone extraction technique. The video provides a clear format for communicating complex scientific experiments and has received nearly 3,000 views since its publication.
Valentin Dragoi, a neurobiology expert at UT Medical School at Houston, has been awarded a four-year, $1.2 million grant to study the signals of populations of neurons in different regions of the cerebral cortex. The project aims to understand how neuronal networks operate in both normal and dysfunctional states.
A new study by LSU professor Patrick Hesp and USGS scientist David Rubin suggests that Titan's linear dunes could be formed by single-direction winds due to cohesive sediment. This alternative hypothesis has significant implications for studying Titan's composition, origin, evolution, and surface features.
Researchers developed a new technology using ambient sound to aid Parkinson's patients speaking louder and more clearly. The system, which plays background babble noise when the patient begins to speak, shows significant improvement in speech changes after eight weeks of training.
A Virginia Tech-led research team is designing a program to help pre-diabetic adults begin and maintain resistance training. The goal is to improve insulin and glucose metabolism, reducing the risk of diabetes. A five-year study will test theory-based approaches to encourage long-term adherence to resistance training.
A genetic variation, CYP2C19*2, affects platelet response to clopidogrel and is associated with an increased risk of cardiovascular events. The study found that carriers of the variant had a higher likelihood of experiencing a cardiovascular ischemic event or death compared to non-carriers after 1 year of follow-up.
Researchers discovered that genetic material regulators beyond the SHOX gene itself play a crucial role in developing growth disorders. A study of 893 patients with short stature found that enhancer mutations, far from the affected gene, can cause the same clinical symptoms as direct gene mutations.
The American College of Preventive Medicine has launched a web page featuring an extensive literature review on lifestyle medicine, summarizing scientific evidence supporting lifestyle interventions. The review aims to inform physicians about the principles of lifestyle medicine and provide guidelines for effective behavior change inte...
A team led by Robert Clauer aims to build a chain of space weather instrument stations in Antarctica to better understand the effects of space weather on Earth's technologies. The project will provide insights into space plasma physics and help predict space weather conditions.
A rare case of duodenal obstruction after successful embolization for duodenal diverticular hemorrhage was reported. The study highlights the importance of thorough observation of resolving hematomas and conservative treatment before surgery to relieve duodenal fibrotic encasement.
Scientists from Stanford University and their international colleagues use cutting-edge technology to monitor the Gulf of Aqaba's surface currents, shedding light on its complex dynamics. The research helps environmental agencies respond to spills and minimize pollution, while also informing large-scale water projects.
The University of Kentucky Center for Public Health Systems and Services Research has received a $600,000 grant to create an integrated dataset that will provide researchers with access to critical information to inform translational practice decisions. The dataset will combine survey data from various organizations, enabling users to ...
Researchers found that post-traumatic stress disorder (PTSD) is associated with an increased risk of thoughts of suicide in Iraq and Afghanistan war veterans. The study, published in the Journal of Traumatic Stress, indicates that PTSD is a primary risk factor for suicide-related thoughts, even after accounting for other mental disorders.
Hip fracture rates declined by 31.8% in females and 25% in males between 1985 and 2005, with the largest decrease among individuals aged 55-64 years. The reasons for this decline are unclear, but factors such as overweight and obesity may contribute.
Tropical lizards detect effects of global warming in climate change research, highlighting threat to species and ecosystems, and human health. The loss of predators due to global warming disrupts natural biodiversity, leading to irreversible long-term consequences.
A study analyzing business return to New Orleans post-Katrina found that 65% of businesses reopened by October 2007. The main concerns cited by remaining closed businesses were levee protection and damage to physical locations, with financing becoming a primary worry later on.
The Ellison Medical Foundation has awarded over $1 million to two mid-career scientists, Dr. Charleen T. Chu and Dr. David M. Sabatini, to study the impact of autophagy and mTOR signaling on age-related diseases such as Parkinson's disease.
A new treatment involving AVI-4658 has shown promising results in patients with Duchenne muscular dystrophy (DMD), increasing dystrophin production by skipping exon 51. The treatment was found to be safe and effective, with increased dystrophin expression observed in treated muscles.
Researchers have discovered that the juice of 'cull' watermelons can be efficiently fermented into ethanol, producing approximately 220 L/ha. This process also yields valuable nutrients like lycopene and L-citrulline.
Researchers have discovered a potential therapeutic agent for treating hepatic fibrosis, a scarring condition that impairs liver function and can lead to organ failure. The CCN2 hammerhead ribozyme shows promise in reducing collagen production and cell proliferation, offering new hope for millions affected by liver fibrosis.
Researchers found a way for healthy cells to take charge of cancerous cells by opening up communication channels, stopping them from developing into tumors. The chemicals, known as kinase inhibitors, appear to be relatively non-toxic and can persist even when withdrawn.
Healthcare patient safety interventions face complexity due to diverse populations and technologies. Guidelines from Johns Hopkins experts suggest prioritizing rare but devastating errors over more frequent systemic problems.
Researchers identify a link between high cholesterol and osteoporosis, with the immune system playing a key role in bone loss. The study found that oxidized LDL triggers an immune response, leading to excessive bone damage.
The world's largest fruit bat species, Pteropus vampyrus, is threatened with local extinction due to unsustainable hunting rates in Peninsular Malaysia. International protection is recommended to address the issue.
The Tobacco Atlas estimates that tobacco use kills six million people annually, with two million cancer deaths projected by 2015. The global economy loses $500 billion due to tobacco use, mainly in low- and middle-income countries.
A new study suggests that adolescents who engage in high-risk activities have more adult-like white matter tracts than their peers. This finding challenges the assumption that delayed brain maturation is the cause of impulsive and dangerous decisions during adolescence.
Researchers have identified a new treatment option for patients with ruptured brain aneurysms using stent-assisted coil embolization, which was successful in 72% of cases. The procedure offers an alternative to surgical repair or balloon-assisted embolization, particularly for wide-necked aneurysms.
Researchers found that acute transient hepatocellular injury occurs in patients with cholelithiasis and cholecystitis without evidence of CBD stones, resolving within weeks after surgery. Markers of liver damage are more severe in those with CBD stones or histologically less severe inflammation.
Researchers at UCLA have confirmed the effectiveness of measuring microRNAs in saliva to detect oral squamous cell carcinoma. The study identifies two specific microRNAs, miR-125a and miR-200a, that are present at significantly different levels in the saliva of individuals with oral cancer.
Researchers identified 50 microRNAs in saliva that could help detect oral cancer, including miR-125a and miR-200a. The findings suggest a major step forward in early oral cancer detection.