Invitrogen introduced its new free online scientific resource collection, iGene, allowing researchers to search for experimental reagents by gene or protein. The company also launched the Premo comeleon calcium sensor, which uses fluorescent protein color emission to detect calcium levels in live cells.
A study found that close to half of smokers who underwent early-stage lung cancer surgery resumed smoking within 12 months, with 60% resuming in the first two months. Patients' self-efficacy and perceived pleasure from smoking drove their relapse rates.
A Phase I clinical trial found that combining bortezomib and lenalidomide showed durable responses in patients with resistant multiple myeloma. The combination therapy was well-tolerated, with only mild side effects.
Researchers found that consuming olive oil significantly reduced oxidative damage and waste by-products in Northern European subjects. The study suggests that olive oil's phenols and other compounds have anti-cancer effects, supporting its inclusion as a healthy food.
A study of 2737 medical residents found that extended work shifts are associated with increased reporting of medical errors, adverse patient events, and attentional failures. Doctors working long shifts reported a seven-fold higher risk of adverse patient events compared to those who didn't work extended hours.
A population-based study of 13,613 brain tumor cases in Sweden found that people with four or more siblings were twice as likely to develop a brain tumor. Children under 15 with three or more younger siblings had a two to fourfold increase in brain tumors compared to those with no siblings.
Researchers at Iowa State University are working on a system to harvest corn stover, the stalks and leaves of corn plants, in a single pass using standard combines. The goal is to create a cost-effective method to produce plant fiber that feeds next-generation ethanol plants.
A comprehensive study by Harvard Medical School found that not-for-profit hospitals and those with more registered nurses and advanced technology delivered better patient care. Hospitals with federal or military designation also performed well, while those serving greater proportions of Medicaid patients had low quality of care.
Researchers use advanced instruments to measure changes in the ice sheets' mass balance, revealing a consistent story of shrinking ice masses. The West Antarctic ice sheet is currently shrinking substantially, while East Antarctica's larger ice sheet has been growing slowly.
A new University of Colorado at Boulder study finds that small glaciers and ice caps are the largest contributors to global sea rise, with over half of the estimated 650 billion tons of ice lost annually coming from these sources. The study's results run contrary to public perception focusing on Antarctica and Greenland.
Researchers at the University of Illinois have developed a world-record fast transistor with an operating frequency of 845GHz, exceeding other groups by 300GHz. The device utilizes pseudomorphic material construction and vertical scaling to reduce electron travel distance, resulting in increased speed.
Chris Austin, an LSU molecular genetics lab expert, discovered a new lizard species in Borneo through extensive field research and DNA analysis. The species was confirmed by comparing its genetic variations with closely related species.
A study by Dr. Brian Stemper and colleagues found that setting head restraints close to the back of the head can minimize injuries from whiplash. The researchers developed a computer model that shows increasing distances between the head restraint and the back of the head can lead to ligament stretch, making whiplash injury more likely.
A study published in Archives of Internal Medicine found that weight loss through calorie restriction leads to decreased bone mineral density, increasing the risk for osteoporosis and hip fractures. In contrast, weight loss through exercise does not seem to produce the same effect.
Women with higher physical activity levels have a lower risk of developing breast cancer, especially for estrogen receptor-positive/progesterone receptor-negative tumors. Physical activity reduces body fat, leading to lower estrogen levels and potentially decreasing ER+/PR+ tumors.
Climate experts warn of the devastating impact of regional nuclear conflicts, which could lead to widespread famine due to enhanced greenhouse effect. Detonation of nuclear weapons in tropical regions may have harsher effects than those in northern latitudes, exacerbating global food shortages.
A new study by DOE's Pacific Northwest National Laboratory finds that idle electric power system capacity can generate electricity for 84% of the country's plug-in hybrid vehicles. This would reduce reliance on foreign oil and lower greenhouse gas emissions.
A study examines the relationship between plaque build-up and artery blockage in patients with moderate risk of coronary artery disease. The results show that MSCT detects atherosclerosis, while MPI identifies ischemia, suggesting that narrowing of coronary arteries may not harm blood flow to the heart.
Researchers at the University of Nebraska-Lincoln discovered self-assembling nano-ice that resembles the DNA double helix structure. The nano-ice formations can be viewed as a self-assembling process, where molecules bond together through weak hydrogen bonds. This discovery could have major implications for scientists studying disease ...
Researchers at Mayo Clinic Cancer Center found that tipifarnib can stall or reverse disease progression for patients with relapsed aggressive non-Hodgkin lymphoma. The study showed a partial response in 18% of patients and stable disease in 21%, while also improving quality of life.
A unique fishbone deforestation pattern in Rondonia, Brazil has been found to increase precipitation over deforested regions, resulting in increased vegetation growth. The study suggests that the pattern creates a localized low-pressure zone, leading to more cumulus clouds and rainfall.
A team of researchers found a significant link between ozone levels in Mexico City and US cities like Houston, highlighting the global impact of air pollution. The study used ozonesondes to measure ozone and other atmospheric variables, revealing that pollution from Asia can also affect the Pacific Northwest.
A new study reveals that a specific set of symptoms and their frequency/duration can distinguish early ovarian cancer from other causes, making it a potential rapid and cost-effective screening tool. The symptom index was found to be 57% sensitive for early disease and 80% sensitive for advanced cancer.
Researchers have identified amylase, an enzyme in saliva, as a biochemical marker linked to sleep loss. Flies subjected to prolonged sleep deprivation showed increased amylase levels, similar to humans who were kept awake for extended periods. The discovery aims to develop diagnostic tools and improve understanding of sleep disorders.
Research reveals that four subspecies of honey bees originated in Africa before migrating to Europe. The study contradicts long-held beliefs about the honey bee's Asian origins.
A report calls for improved monoclonal antibodies against solid tumors, as only 25 percent of approved therapies target these cancers. Researchers suggest manipulating the physical properties of a monoclonal antibody to improve treatment outcomes.
Scientists from Northwestern University find New Madrid rocks surprisingly similar to other areas of the eastern United States, contradicting the idea that hot rocks are weak. The study suggests the fault system may be shutting down, with no large earthquakes expected for thousands of years or longer.
A small-scale regional nuclear war could produce as many direct fatalities as all of World War II and disrupt the global climate for a decade or more. The environmental effects would be catastrophic and long-term, affecting regions far from the target areas or countries involved in the conflict.
A study presented at the American Society of Hematology Meeting shows Revlimid can provide long-term durable results in MDS patients, helping them achieve blood transfusion independence. After over two years of follow-up, two-thirds of patients were completely freed from the need for blood transfusions.
A gene discovered by UNC researchers, palladin, has been associated with two forms of pancreatic cancer, according to a study. Palladin is involved in the formation of scar tissue on nerve cells and is overexpressed in people with sporadic, non-familial pancreatic cancer.
A new study of nearly 200 British men and women found that three-quarters of women assume the traditional role of chief cook and food shopper in their households. Women tend to take on more practical approaches to cooking and shopping, often citing time constraints or skills as reasons for their responsibilities.
Researchers with Bank On A Cure identified genetic pathways associated with venous thromboembolisms in patients treated with thalidomide for multiple myeloma. These findings may lead to screenings and tailored interventions to prevent blood clots, as well as the development of new treatments.
Scientists at Ohio State University have used a new radar instrument to create the first three-dimensional image of the ground beneath Greenland's ice sheet. The image reveals a landscape with mountains and valleys, similar to Canada and the northern United States, hidden for millions of years.
Researchers gathered precise wind measurements in a hurricane using NASA's ER-2 aircraft and NOAA's P-3 aircraft. This data helps advance the understanding of complex storms, allowing for more accurate forecasts and potential improvements in replicating hurricane development.
The Society for Cardiovascular Angiography and Interventions recommends assessing kidney function, ensuring patient hydration, and minimizing NSAID use to lower the risk of contrast-induced nephropathy. CIN is estimated to occur in 1-3% of individuals undergoing procedures with contrast dyes.
A study by the Catholic University of Campobasso confirms that moderate alcohol consumption reduces all-cause mortality and cardiovascular disease. Drinking in moderation (2 glasses a day) leads to a 18% reduction in mortality for men, while women's protection disappears after 2 glasses.
A study conducted by The George Institute found that 60% of drivers in NSW and WA use their mobile phones while driving, leading to a significant increase in crashes and near-misses. Younger drivers, men, and metropolitan residents are the worst offenders, with over 30% writing text messages while driving.
Scientists discovered distinct brain regions processing gender, ethnicity and facial identity, contradicting previous assumptions about face recognition. These findings have implications for understanding conditions like autism spectrum disorders and may lead to improved methods for enhancing face recognition abilities.
Scientists at Georgia Tech have demonstrated a new technique for fabricating nanoscale optical waveguides and splitters using artificial butterfly wing scales. The replicas accurately replicated the physical features and optical properties of the natural wing scales, exhibiting similar shape, orientation, and distribution.
A new analytical technique developed by Penn State researcher John B. Asbury could lead to the development of cheaper and more efficient solar cells. The technique uses infrared spectroscopy to study light-sensitive organic materials, providing information about electron movement within a film of carbon-based materials.
Researchers at MGH found that individuals infected with both HIV and HCV who maintain low viral levels have stronger immune responses. Early antiretroviral treatment before CD4 levels drop may be crucial to preserve HCV control in co-infected patients. The study suggests a potential strategy for improving treatment outcomes.
Researchers identify palladin as the first familial pancreatic cancer gene, linked to a large family with 18 members affected by the disease. The mutated gene is associated with overexpression and disruption of cytoskeletons in cancer cells.
Scientists recreated Tropical Storm Gert's life cycle using computer models and data from the 2005 Tropical Cloud Systems and Processes mission. The study identified convection, wind shear, and ocean surface temperature as crucial factors in Gert's origination and strengthening.
A study found that TV viewing and low physical activity are associated with increased risk of metabolic diseases in children. However, physical activity was inversely related to blood pressure, glucose, insulin, triglycerides, and overall risk score. Preventive action may need to target both TV viewing and physical activity separately.
The CATALIST Project will help maintain biodiversity, improve environmental management, and develop markets for agricultural inputs and crops in the Great Lakes region. Local people will be employed in labor-intensive public works to plant trees and build terraces and roads.
A new study reveals that a balance training program focusing on increasing step length and speed is more effective at improving mobility and balance than tai chi. The program resulted in greater improvements in measures such as the timed up and go test and maximal step length test.
A monoclonal antibody JAA-F11 has been shown to extend the survival of mice with human breast-cancer tumors and inhibit their spread to the lungs, a result attributed to its ability to block adhesion and growth stages of cancer cells.
A new bile duct stent called Dua Anti-Reflux Valve has been shown to improve the quality of life for patients with pancreatic and bile duct cancers. The stent's anti-reflux valve reduces backflow of intestinal contents, resulting in fewer repeat procedures and better outcomes.
Millions of Americans have visual impairment, blindness, or eye diseases such as AMD, cataracts, and glaucoma. The estimated annual financial burden is $35.4 billion, with direct medical costs totaling $16.2 billion.
A new study reveals that planting trees can help slow down global warming, particularly in tropical rainforests where they absorb carbon dioxide and increase cloudiness. However, afforestation in mid- to high-latitude locations may actually create a net warming effect due to the albedo effect of forest canopies.
The study found that AVN944 significantly inhibited the IMPDH enzyme and induced biomarkers associated with cancer cell death. The gene HspA1A marker was elevated even at low doses of the drug, indicating potential for tumor cell apoptosis.
Researchers at M.D. Anderson Cancer Center report clinical activity of MK-0457 against T315I BCR-ABL mutation in CML and ALL, and JAK-2 mutation in myeloproliferative disorders. The drug shows minimal side effects and has potential to benefit patients with these rare and aggressive cancers.
Researchers discovered that biofilms in caves increase the rate of cave formation by using sulfur for energy, producing strong acid. Cave biofilms also provide food for various cave creatures and have similarities to dental biofilms and steel ship hull corrosion.
A University of Illinois study reveals materialistic values develop differently among children and adolescents, increasing between ages 8-13 before dropping at 16. Self-esteem plays a crucial role in materialism levels.
Researchers at UC Davis are developing a virtual library of data from hundreds of environmental sensors to study the interconnectedness of air, water, land, and living things in California. This 'God's-eye view' will help understand how climate change affects the state, including precipitation patterns, wildfires, and ocean upwelling.
New findings indicate that near-Earth space weather is driven by the merging rate of Earth's and sun's magnetic fields, not solar wind's electric field. Researchers developed a formula predicting 10 types of space weather activity, including aurora and magnetic disturbances.
Complex organic molecules from natural organic matter fouls water purification and desalination facilities, creating bio-fouling layers. Researchers found that certain ions like calcium interact strongly with natural organic matter.
New research by Brown University sociologists found a significant decline in female support for mothers of young children over the last 120 years. From nearly 50% in the late 19th century to just 20% in the late 20th century, fewer women were available to help with household work and childcare.
A new study by Stanford University researchers challenges the 'biodiversity hotspot' approach to conservation, finding that only 16% of mammalian species overlap across three types of hotspots. The authors argue that protecting fewer sites could lead to neglecting endangered and endemic species.
New research suggests that changes in midge communities provide evidence of global warming. Midge populations shifted dramatically over the last three decades, with warmer-water midges outcompeting cooler-water species.