Researchers have identified 46 new mutations in colon cancer genes that can be targeted by drugs, affecting approximately 30% of colorectal cancers. The study used a forward-looking approach to screen the genes that produce tyrosine kinases, resulting in the discovery of novel mutations that spur colon cancer.
A study found that using mammograms read by specialists reduces call back rates significantly, with an average rate of 8% in the second year compared to 11% in the first year. Specialists are defined as radiologists who have read 3,000 mammograms per year over the last two years.
African-American smokers and non-smokers alike show substantial support for tobacco tax increases to reduce smoking prevalence rates. However, opinions on the fairness of such policies vary, with some arguing they would disproportionately affect low-income smokers.
A reanalysis of previous studies found that new-generation antipsychotics were moderately more efficacious than low-potency conventional drugs but did not significantly reduce neurological side-effects. Clozapine was the only new-generation drug associated with fewer side-effects and higher efficacy.
Researchers report successful treatment of 50 out of 51 renal tumors using radiofrequency ablation. The therapy is particularly effective for tumors on the outer surface of the kidney due to surrounding fat insulation.
Researchers discovered mutations in 14 tyrosine kinase genes, which play key roles in controlling cell growth and differentiation. These findings open the door to individualized treatment approaches for colorectal cancer, allowing for personalized therapeutics tailored to each patient's tumor DNA.
Scientists report evidence of catch bonds regulating white blood cell activity, offering potential targets for anti-inflammatory compounds and cancer metastasis control. Researchers discovered prolonged bond lifetimes with increasing force, contrary to initial theories.
A New Mexico State University scientist's study reveals that the cost of maintaining the upstream habitat for the endangered silvery minnow results in a net gain of $68,000 per year for New Mexico agriculture. However, central New Mexico agricultural users and Albuquerque residents would lose $68,000 annually, while southern New Mexico...
Schepens Eye Research Institute scientists have discovered a new drug that can trap abnormal growth factors in the cornea, potentially improving corneal transplants. Additionally, a gene therapy approach has shown promise in preventing and treating autoimmune diseases like uveitis by inducing a protein called a-MSH.
Radiofrequency ablation has shown promising results in treating advanced lung cancer, with significant pain reduction and improved survival rates. The procedure involves using extreme heat to destroy or slow the growth of tumors, and can be used as an alternative to surgery, chemotherapy, and radiation therapy.
Researchers have successfully completed the first phase of a clinical trial using a microelectronic retinal prosthesis, which is intended to restore vision in patients with severe eye diseases. The device, developed by Second Sight, LLC, has shown promising results, including the ability to detect light and distinguish between objects.
A possible predictor of tamoxifen resistance has been identified in a University of Illinois Chicago study. High levels of protein kinase C alpha may indicate reduced effectiveness of the drug, and researchers hope to develop more effective strategies for treating cancer recurrence.
Researchers at Rutgers University and Los Alamos National Laboratories used computer simulations to predict that heated plutonium will collapse five percent in volume and exhibit anisotropic elastic properties, leading to unusual deformation behaviors. This study aims to aid material scientists and engineers in storing the metal.
Researchers discovered a 100-fold increase in meteorite activity after an ancient asteroid breakup, revealing a 'lithographic time capsule' of fossilized meteorites. The study found matching concentrations of extraterrestrial chromite grains across five quarries in southern Sweden.
Researchers have identified two distinct genotypes of the SARS virus, linked to geographic clusters of infections. The study provides valuable insights into the genetic makeup of the virus, which could inform public health strategies and vaccine development.
Researchers created miniaturized fluid drive devices that control flow and fluidic memory using polymer liquids. These findings could lead to implantable devices monitoring human physiology and delivering drugs accordingly.
A study of retired physicians and their spouses found that both groups enjoyed very high life satisfaction following retirement. The happiest retirees were those who had chosen to retire at a young age and had progressed through the initial post-retirement adjustment phase. Factors associated with better life satisfaction for the physi...
A new study finds that diffusion-weighted MR imaging can detect stroke with high accuracy, outperforming traditional CT scans. The technique is 100% specific and 90% sensitive in identifying patients who have had a stroke.
A study found whole body MR imaging detected skeletal metastases in 80% of patients, outperforming bone scans in predicting complications like fractures. MR imaging also provided additional information about primary tumors and soft tissue metastases.
A study found that MR imaging identified 86% of residual disease, outperforming mammography in detecting disease near the lumpectomy site. The imaging modality was also most accurate in identifying disease in different quadrants than the original tumor site.
A new study in rats reveals that gene activity plays a significant role in brain aging and cognitive impairment. The research identified 146 genes associated with age-related changes in memory performance, including those involved in inflammation, oxidative stress, and neuronal function.
Scientists have found that combining high temperature and ultra-high pressure can reduce prions to non-infective levels, improving the safety of meat products. This approach may also provide insights into understanding prion structure.
A new study examines the lifelong personal and environmental events that led 37 Texas murderers to their execution. Childhood violence is a common thread among many of the men, with 15 later convicted of committing heinous murders despite experiencing physical abuse in childhood.
Researchers are working to make cell phones more accessible for people with disabilities by identifying user requirements and challenges in user interface designs. The study focuses on usability tests with selected Toshiba phones and aims to develop new features for future cell phone interfaces.
A team of researchers has developed a new method to prevent urinary catheter infections, which affects millions worldwide. By using a mild triclosan solution to inflate the balloon holding the catheter, they have successfully eliminated bacterial growth and blockages, offering a promising solution to this long-standing problem.
A study found that if one parent quits smoking, the child's odds of smoking decrease by 25 percent. If both parents quit, the child's chances drop by nearly 40 percent. The research suggests that parental influence on smoking is not affected by the child's age when the last parent quits.
The PNC1 protein regulates nicotinamide, a form of vitamin B3, which acts as an inhibitor of Sir2, a founding member of proteins controlling cell survival and lifespan. This discovery suggests that lifespan is controlled by an active genetic program in cells, potentially boostable.
A study of 716 consecutive emergency head CT examinations found general radiologists and neuroradiologists were in agreement on 95% of studies. The study suggests that general radiologists can accurately interpret emergency CT scans with high accuracy rates, similar to neuroradiologists.
A study found that a specific gene variant affects prefrontal brain function and response to amphetamine. People with the val/val variant had reduced prefrontal dopamine activity and less efficient information processing, while those with met/met had more efficient function but also faced cognitive decline when challenged.
Researchers used MR imaging to compare Alzheimer's patients' brains with those of children and adults, finding similar water molecule diffusion. The technique may help detect white matter disease earlier in dementia.
Researchers found that interventional procedures can effectively relieve symptoms and allow time for optimization before repeat surgery. The procedures are less invasive and better tolerated than repeat surgery, with shorter hospital stays.
Researchers found that radioactive elements like potassium could supply enough heat to maintain the magnetic field, contradicting previous studies. The discovery helps explain Earth's long-lasting magnetic field and may shed light on the planet's core composition.
Researchers at the University of Illinois have discovered a protein that reaches an unprecedented folding speed of one to two microseconds, significantly faster than previously thought. By studying this phenomenon, they were able to determine the speed limit of protein folding and challenge existing theories.
A study of 53 patients with persistent symptoms after laparoscopic fundoplication found that barium studies were effective in detecting complications, including unwrapping and hernias. The findings suggest that barium studies should be the first step in diagnosing complications from reflux disease surgery.
Research reveals a mutant form of the muscle protein dysferlin prevents normal muscle repair in two muscular dystrophies, limb-girdle muscular dystrophy type 2B (LGMD2B) and Miyoshi Myopathy (MM). The discovery identifies a critical component in membrane-repair machinery, offering potential clues for future therapies.
Scientists at UC Riverside have modified an existing full-scale chemical scrubber to a biological trickling filter, achieving treatment rates comparable to chemical scrubbers. The conversion resulted in annual savings of $30,000 per year, with potential for widespread adoption and significant cost benefits.
A new low-dose CT colonography technique reduces radiation risk for non-invasive colon cancer screening. However, it may limit subtle differentiation of extracolonic soft tissues. The study suggests that this technique is suitable for asymptomatic screening but may require a standard dose for symptomatic patients.
The AACR is now accepting nominations for its Cancer Prevention Research Award. Candidates must have made significant contributions to the field and be able to present a lecture at an upcoming conference in Phoenix, Arizona. The winner will receive $5,000 and support to attend the meeting.
Researchers found that Arabidopsis plants respond differently to light and temperature signals, with one gene focused on photosynthesis and the other sensitive to temperature. This discovery suggests that plants have multiple internal clocks operating within a single tissue, allowing them to make critical decisions about flowering.
A team of scientists used ALife to create a road map detailing the evolution of complex organisms, finding that complex functions are built up from simpler ones and some mutations become positive forces over time. This research sheds light on how complex features arise in living organisms, providing new insights into evolutionary theory.
A new series of special reports on 'Living on Earth' will follow cutting-edge research on environmental topics, including a 20-year study on the effects of lead on human development in Cincinnati. The study has found an association between childhood exposure to lead paint and patterns of delinquency and crime among adolescents.
A new study suggests that colonoscopy is more cost-effective in preventing colon cancer than promising Cox-II drugs. The study found that screening plus drugs was most effective but also the most costly option.
Duke University biochemists create sensor proteins that can specifically detect TNT and other chemicals, opening doors for medical and environmental applications. The researchers' computational design method narrows down possible structures to reasonable numbers with days' worth of calculations.
The study identifies dysferlin as a critical protein involved in the repair process, which is faulty in two types of muscular dystrophy. Without dysferlin, muscles are unable to heal themselves, leading to progressive muscle degeneration.
Researchers at McGill University discovered a genetic mutation, MTHFR variant, that predicts better response to fluoropyrimidine-based chemotherapy in advanced colorectal cancer patients. The study found 26 out of 43 patients with the variant responded well to chemotherapy.
Researchers have developed a new colon cancer screening method that eliminates the need for cathartic cleansing, reducing patient discomfort. The innovative approach uses barium to tag fecal matter left in the colon, making it easier to detect polyps with low residue diets and reduced-hydration regimens.
A Vanderbilt University study found that mental health carveouts can lead to disruptions in care for the most fragile patients. The study, which analyzed 8,000 patients with schizophrenia, showed that those who received carved-out services missed more days of antipsychotic therapy and saw fewer doctors.
Researchers have identified genetic defects causing excessive estrogen production in three male patients, including a man and his son, leading to severe gynecomastia. The defects involved misplaced promoters associated with housekeeping genes, resulting in continuous aromatase enzyme production and elevated estrogen levels.
Improving patient-physician communication is crucial to overcoming the barriers of low health literacy, according to Dr. Darren A. DeWalt. Studies have shown that patients recall only half of what healthcare providers tell them, and factors like anxiety and severe illness can further impede this process.
Researchers identified a strong association between EZH2 and ECAD biomarkers and prostate cancer recurrence. Moderate or strong expression of EZH2 coupled with at most moderate expression of ECAD is most strongly associated with biochemical recurrence.
A study published by the American College of Radiology found that PET scans had a sensitivity rate of 93% compared to 46% for CT scans. Additionally, PET scans offered advantages over CT scans in terms of cost savings due to lower radiation exposure. The researchers recommend using PET scans for staging patients with suspected cancer s...
A new virtual mockup at Penn State has shown promise in reducing construction costs by enabling more efficient scheduling. Experiments with experienced superintendents and students found that the interactive method saved up to 33% of time.
Researchers identified a link between specific genetic mutations and increased risk of osteosarcoma, a type of bone cancer. They also developed a non-invasive method to measure thymidylate synthase inhibition using carbon-labeled thymidine PET scanning.
Children prescribed asthma medications have lower rates of emergency room visits compared to those without prescriptions. However, asthmatic African-American and urban children experience more frequent ER visits due to asthma attacks.
A recent study from Johns Hopkins Medicine suggests that cognitive decline immediately after coronary artery bypass surgery is transient and reversible. The researchers tested patients before and after surgery using various neuropsychological tests to measure memory and other cognitive abilities.
Researchers found lower concentrations of amino acid N-acetylaspartate in the right hippocampus of males with bipolar disorder. The study suggests a progressive nature of the disease, with decreasing levels of NAA seen over time.
A recent study found that two-thirds of referring physicians had a suspected diagnosis before CT scans were ordered. The scan confirmed the diagnosis in 50-60% of cases. However, one-quarter of CT scans revealed diagnoses not considered based on symptoms. Abdominal CT is being used more often for appendicitis and other diseases.
A new study by Dr. Sandor Joffe found that wireless capsule endoscopy was more effective than a small bowel series in finding the cause of patient symptoms, including vascular malformations and bleeding. However, the procedure has some downsides, including long wear time for data receiver.
The study found that the fatality rate for patients over 60 was significantly higher (43.3%) compared to those under 60 (13.2%), with an average admission to death time of 36 days. Public health measures, including hospital quarantine and contact tracing, helped slow the outbreak.
A study found that US per capita health spending rose to $4,631 in 2000, significantly higher than other OECD nations. The researchers also discovered that the US spent 13% of its GDP on healthcare, with private financing accounting for a majority of public funds.