Researchers found a genetic connection between permanent hair dye use and bladder cancer risk, particularly among women with certain slow genes. The study suggests that exposure to hair dyes increases the risk of bladder cancer, likely due to the presence of carcinogenic arylamines.
A national field experiment found that Americans who experience anger are more optimistic about the future, less likely to take precautionary actions, and more likely to favor aggressive policy responses. Media portrayals of terrorist attacks strongly influence emotional responses, producing anger in some instances and fear in others.
Researchers developed method for biodegradable polymer microspheres with precise size and shell thickness, enabling controlled-release drug delivery and single-shot vaccinations. The technology can generate constant rate of release over time, improving patient comfort and compliance.
Researchers have successfully attached a water-soluble group to an 80-atom fullerene, creating a buckeyball with biological functionality. The aim is to get these molecules into the bloodstream for potential drug delivery. This innovation marks a first step in developing drugs and expands MRI reagents and nanotube applications.
Prostate cancer tumors produce factors that inhibit dendritic cell growth and induce apoptosis, explaining immunological non-responsiveness in advanced patients. Stimulating dendritic cell growth is a promising area for future prostate cancer therapies.
McGrath has made significant contributions to the development of thermoplastic elastomers, which are widely used in fuel cells and other applications. His work on block copolymers and phosphorous-containing polymers has enabled the creation of materials with improved durability, reliability, and safety.
A large clinical trial found St. John's wort to be no more effective than placebo in treating moderately severe major depression. Researchers tested the supplement against the antidepressant sertraline and concluded that patients with moderate to severe depression should not self-medicate with St. John's wort.
Researchers at Virginia Tech create flexible photovoltaic devices using nanometer-thick layers of self-assembling materials, increasing efficiency to up to 20% of silicon. Electrochromic films also improve response times, enabling faster color changes for applications in flat panel displays.
A study of over 27,000 breast cancer patients in Finland found that excessive weight gain during pregnancy increases breast cancer risk after menopause. Researchers discovered that each 1 kg increase in pregnancy weight boosts the risk by 3.9%, with women who retain excess pounds post-pregnancy facing the greatest threat.
A test to detect the RhoC protein has shown promising early results, detecting invasive cancers with high specificity and identifying tiny tumors that have already metastasized. The study aims to identify early-stage cancer that could be vulnerable to aggressive treatment, potentially leading to improved patient outcomes.
A study of 297 patients found a significant prevalence of renal artery narrowing among those with hypertension. The researchers recommend considering abdominal aortography to better define cardiovascular risk and monitor kidney function.
A new study reveals that college students contribute to an estimated 1,400 student deaths, 500,000 injuries, and 70,000 cases of sexual assault each year. The study proposes several strategies to prevent high-risk drinking, including increasing campus awareness campaigns, improving alcohol-free events, and providing counseling services.