http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A new statistical technique developed by researchers at the University of Illinois allows scientists to scan a genome for specific gene-regulatory regions without requiring prior knowledge of the relevant transcription factors. The technique has been experimentally validated in both the mouse genome and the fruit fly genome. http://www.physorg.com/news177859128.html Biology Thu, 19 Nov 2009 13:19:22 EST news177859128 (PhysOrg.com) -- A team of Northwestern University researchers, using an extremely sensitive nanotechnology-based tool known as the biobarcode system, has detected previously undetectable levels of prostate-specific antigen (PSA) in patients who have undergone radical prostatectomy. This new assay, just one of many being developed by investigators at the Nanomaterials for Cancer Diagnostics and Therapeutics Center for Cancer Nanotechnology Excellence (Northwestern CCNE), is 300 times more sensitive than commercially available PSA tests. http://www.physorg.com/news177775224.html Nanotechnology Wed, 18 Nov 2009 14:50:01 EST news177775224 In the course of doing research on the mosquito-borne pathogens chikungunya virus (CHIKV) and o' nyong-nyong virus (ONNV), Virginia Tech researchers have discovered an inconvenient truth about an assay, strand-specific quantitative real-time PCR (ssqPCR), increasingly being used to detect and measure replicating viral RNA in infected cells and tissues. The method most labs are using for ssqPCR is unreliable. http://www.physorg.com/news175375776.html Medicine & Health Wed, 21 Oct 2009 20:40:01 EST news175375776 A team of Northwestern University researchers, using an extremely sensitive tool based on nanotechnology, has detected previously undetectable levels of prostate-specific antigen (PSA) in patients who have undergone radical prostatectomy. http://www.physorg.com/news175188038.html Medicine & Health Mon, 19 Oct 2009 18:20:05 EST news175188038 Telomerase, an enzyme that prevents chromosomes from shortening when they divide, is widely suspected of playing a key role in making cancer cells immortal. Though researchers have developed a variety of methods for measuring the activity of this enzyme, none of these methods have proved suitable for use in diagnostic assays for cancer or in efforts to develop drugs that block telomerase activity. http://www.physorg.com/news136133250.html Nanotechnology Thu, 24 Jul 2008 15:47:30 EST news136133250