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News | Archive (15 May 2009)
The end of the line for existing stem cell research?
— 12:08 GMT | BiologyTime is short for scientists to respond to the call for comments on the National Institutes of Health (NIH) proposed guidelines for the use of human embryonic stem (ES) cell lines and their eligibility for federal funds. On 26 May the window to provide feedback will close, and the drafted rules leave the possibility that funding for almost all existing cell lines will disappear…
Perceived cancer risks may not reflect actual risks or prevention needs
— 12:03 GMT | HealthWorking with a population of individuals at risk for gastrointestinal cancers, researchers at Fox Chase Cancer Centre have learned that many people misjudge their actual degree of cancer risk and, therefore, their true need for prevention support. Strategies for accurately assessing cancer risk are critical for appropriately targeting educational, counselling, and diagnostic resources to prevent cancer in as many individuals as possible, the investigators say…
More older women with early stage breast cancer choose chemotherapy
— 11:58 GMT | HealthA new study examining treatment decision-making by older women with early stage breast cancer shows that 45 percent of women would choose to get chemotherapy after surgery - a figure higher than the national average of women getting the additional treatment…
Human nose too cold for bird flu, says new study
— 11:53 GMT | HealthAvian influenza viruses do not thrive in humans because the temperature inside a person's nose is too low, according to research published today in the journal PLoS Pathogens. The authors of the study, from Imperial College London and the University of North Carolina, say this may be one of the reasons why bird flu viruses do not cause pandemics in humans easily…
Even in hostile working environments, employees reluctant to leave jobs
— 11:48 GMT | HealthShe never gets invited to lunch with the rest of her co-workers. He always gets publicly criticised for his mistakes…
Folic acid to prevent congenital heart defects
— 11:43 GMT | HealthThe Canadian policy of fortifying grain products with folic acid has already proved to be effective in preventing neural tube defects. The latest article published in the British Medical Journal by a group of researchers from the McGill Adult Unit for Congenital Heart Disease (MAUDE Unit), the Research Institute of the McGill University Health Centre (MUHC) and McGill University, shows that folic acid also decreases the incidence of congenital heart defects by more than 6%…
Researchers identify key proteins needed for ovulation
— 11:38 GMT | HealthResearchers from the National Institutes of Health and other institutions have identified in mice two proteins essential for ovulation to take place…
DNA gripped in nanopores
— 11:33 GMT | PhysicsMolecular biologists, including the cool dudes from CSI, use gel electrophoresis to separate DNA fragments from each other in order to analyse the DNA. A team of researchers under the leadership of Vici winner Serge Lemay, has now shown for the first time how the gel influences the movement of the DNA. The researchers drove a single DNA molecule through a nanopore in order to analyse the forces on the DNA. The results of the research were published on 29 March in Nature Physics…
Self-assembly now easier to control
— 11:28 GMT | ChemistryNature has long perfected the construction of nanomachines, but David Gonzalez and his fellow researchers from Eindhoven University of Technology and Utrecht University under the leadership of Spinoza Award winner Bert Meijer, have brought the construction of artificial supramolecular structures a step closer by. The researchers managed to carefully control the self-assembly of guanosine, one of the building blocks of our DNA. Their research results were published by Nature Chemistry on 19 April…
Educational initiatives improve quality of care delivery
— 11:23 GMT | HealthA study of targeted educational initiatives between the clinical staff at Fox Chase Cancer Centre and the hospitals within their Partners program suggest that educational interventions by academic cancer centres can improve quality of care for cancer patients at community hospitals. The study, to be presented at the 2009 Annual Meeting of the American Society of Clinical Oncology, looked specifically at the number of lymph nodes that were surgically removed in colorectal cancer patients at Fox Chase's partner hospitals and the impact that educational initiatives by clinical staff had on improving the number of nodes removed…
Remote-access meters can cut your energy costs
New skeletons from the age of dinosaurs answer century-old questions