In the News
Cell Response To Skin-damaging UV Rays Explained
It's well known that overexposure to ultraviolet rays from the sun can cause major skin problems, ranging from skin cancer to sunburns and premature wrinkles. A tan, for example, is nature's own UV protection and an unhealthy sign that your skin is damaged. New research shows that cells protect themselves (or not) from DNA damage caused by UV rays by means of a 'simple switch'mechanism inside cells, triggered by UV exposure from the sun. FDA Approves Novel Antiretroviral Drug
The U.S. Food and Drug Administration (FDA) has approved maraviroc, an antiretroviral drug for use in adult HIV patients. Maraviroc, sold under the trade name Selzentry, is the first in a new class of drugs designed to slow the advancement of HIV and received priority review by the FDA. Shoe Leather As A Renewable Resource: Penn Biologists Invent Power-Gen
If you already have a little spring in your step, a team of biologists at the University of Pennsylvania would like to put it to good use by adding a few more springs in the form of a power-generating backpack. Details of their prototype "Suspended-load Backpack"were announced today in the journal Science. The device converts mechanical energy from walking into electricity up to 7.4 Watts more than enough energy to power a number of portable electronic devices at once. UCSC Engineers Develop Assistive Technologies For The Blind
Researchers at the University of California, Santa Cruz, are developing new assistive technologies for the blind based on advances in computer vision that have emerged from research in robotics. A "virtual white cane"is one of several prototype tools for the visually impaired developed by Roberto Manduchi, an assistant professor of computer engineering, and his students. Hygienic Surfaces, Biocidal And Self-cleaning Coatings
Microbian evolution on a wide variety of surfaces can produce phenomena such as corrosion, dirt, smells and even serious hygiene and health problems. Anxiety Before Surgery Complicates Recovery In Children
Children who are anxious before surgery experience a more painful, slow, and complicated postoperative recovery, according to a Yale School of Medicine study published this month in Pediatrics. Hospital Investigates New Prophylactic HPV Vaccine
Temple University Hospital's Center For Women's Health is participating in a national study to determine the safety and effectiveness of an investigational treatment for cervical dysplasia. According to the American Cancer Society, approximately 500,000 women are diagnosed with high-grade cervical dysplasia each year, with roughly 10,000 cases progressing to cervical cancer.The expected widespread availability of two preventive vaccines may lower the incidence of HPV infection and reduce the risk of cervical cancer. Appendix Isn't Useless At All: It's A Safe House For Good Bacteria
Long denigrated as vestigial or useless, the appendix now appears to have a reason to be - as a "safe house"for the beneficial bacteria living in the human gut. The gut is populated with different microbes that help the digestive system break down the foods we eat. In return, the gut provides nourishment and safety to the bacteria. Parker now believes that the immune system cells found in the appendix are there to protect, rather than harm, the good bacteria. Patient's Genes Can Predict Response To Chemotherapy For Breast Cancer
Testing for the activity of certain genes could be used to predict how breast cancer patients will respond to chemotherapy treatment. In a study published today in Journal of Translational Medicine, researchers sampled primary tumour tissue from eighty-three breast cancer patients, and found fifty-seven 'predictor genes' that could be used to predict patients' response to preoperative systemic chemotherapy in all cases of partial remission, and nearly three quarters of cases of complete remission. Genetic Link Suggested In Deaths From Cardiac Valve Diseases
Deaths from cardiac valve diseases appear to run in families, suggesting a significant genetic component, according to a study published in Circulation: Journal of the American Heart Association.
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