Racial groupings match genetic profiles, Stanford study finds
...recise tool for tracking groups of patients. Risch points out that this genetic analysis is costly. If people fall into the same groups using self-identified race as using genetics, then that could bring down the expanding cost of medical research....Man and mouse share genome structures
...ped tags coincided with the transcription starting points of active genes, as they and others had seen earlier in the yeast. Unexpectedly, they also found tags idling over regions near genes. The researchers think these sites have important regulatory functions, because the methylation patterns are similar ...How many comparative genomes are enough?
...me over time to be conserved between species, Eddy points out. Furthermore, deciding that a single base is conserved is not necessarily the most appropriate goal. According to Eddy, it would be more useful to figure out if longer stretches of DNA are conserved, such as sections of genes or binding sites in ...New insight into regulation of blood stem cells
...gulator of hematopoiesis and acts at many distinct points to control HSCs. "It is remarkable that a single transcription factor controls the diverse processes of self-renewal, proliferation, and differentiation" says Dr. Cooke. "The next challenge is to understand how c-Myb controls HSC numbers and use this...Biodiversity hotspots identify conservation priorities
...ann, CEO and chairman of the board of CI. "It also points out the need for additional resources to address the new priority areas that have been identified." CI already works in most of the existing hotspots and plans to expand its programs into some of the new hotspots, including the Madrean Pine-Oak Woodl...'Man the Hunter' theory is debunked in new book
...e was controlled and cooking was possible. Sussman points out that the first tools didn't appear until two million years ago. And there wasn't good evidence of fire until after 800,000 years ago. "In fact, some archaeologists and paleontologists don't think we had a modern, systematic method of hunting unti...Report addresses safety problem in preharvest stage of food production
...The report, "Preharvest Food Safety and Security," points out that recent outbreaks of a number of foodborne illnesses have been linked to contamination occurring in the preharvest stage of food processing. The report recommends creating an accessible international database of genetic sequences for known f...Assumptions of effects of rising carbon dioxide probed
...f organisms can adjust to shifting conditions, and points to the need for careful experiments that study dynamics of our environment integrating time if we are to predict what factors will be of concern to the future health of our cropping and wildland ecosystems....Singers (and parents) take note: Worst songbird rehearsals precede best debuts
...before grasping words. Therefore, the new research points to the need for a quantitative study of the effects of sleep on learning in human infants, says Partha Mitra, a theoretical neuroscientist at Cold Spring Harbor Laboratory who participated in the research The study examined the effect of sleep on son...Are IVF embryos starved of a vital ingredient?
...ld increase the risk of health problems, Handyside points out. He thinks existing growth media do need improving. But he does not believe that experimenting with new components can be justified until researchers know exactly what effect these components have. "Without a scientific basis you cannot anticipa...Stockpile bird flu vaccine now
...r enough to make a significant difference, as Sthr points out. "This is an option only for affluent countries, and then for a fraction of their population," he says. "It won't change a lot at the global level." Until now the WHO has said that a vaccine cannot be made until a pandemic starts, as only then c...Scientists will discuss remarkable advances in whale research at the annual meeting of AAAS
... point in the past. The parts that narrow down are points in the past where the population has shrunk. Think of those family trees of royal houses in Europe, where one queen has 12 children, so it bulges out there, but none of the children do very well, for various reasons, so the tree collapses back down a...Technological revolutions in sensors, robotics, and telecommunications allow new views of ocean
... depth measurements, taken laboriously at discreet points in the sea. These points formed a connect-the-dots type picture that scientists could use to draw maps, but that was as good ...New cyber security protocol for online banking, and more
...t the link included in a legitimate-looking e-mail points to a fake website set up to steal your sensitive information, such as passwords and PINs to bank accounts, credit cards numbers and account numbers for online fund-transfer services. The safety measures also might help stop organized crime and terro...New Georgia Tech micro-CT imaging technique to help tissue engineers improve bone regeneration
...ing the healing process. New Georgia Tech research points to better ways to heal and regenerate bones using microcomputed tomography (micro-CT) imaging — a process 1 million times more detailed than a traditional CT scan. The new micro-CT scan technique simultaneously looks at both vascularization (the...Ecological destruction fuels emerging diseases
... taxonomic information about parasites, Dr. Brooks points out that we lack the ability to predict and thus prevent emerging parasitic diseases. "Right now, we're just reacting out of ignorance whenever an unfamiliar disease catches us off guard and we call that management," says Dr. Brooks. "We're always be...Probable trigger of kidney disease in diabetics identified
...between this particular protein and kidney disease points to yet another reason why it is critical that diabetics keep their blood glucose levels as close to normal as possible. Kidney disease in diabetics, known as diabetic nephropathy is the leading cause of kidney failure worldwide. It is known that this...Fox Chase Cancer Center scientists identify immune-system mutation
...ly. "The maturation of T cells involves key branch points at which cells choose one of two different pathways, going on to become helper cells or killer cells," Kappes said. His goal is to understand how T cells specialize to do different jobs. Commitment to the helper or killer lineages correlates precise...Internet viruses help ecologists control invasive species
...able to control invasive species to be targeted at points on the network where they will have most impact. "Outbound vector traffic from hubs with large flows to non-invaded destinations should be targeted for management efforts to restrict the transportation of propagules across the network and to reduce t...Study examines role of EGFR gene mutations in lung cancer development
...he discovery of EGFR gene mutations in lung cancer points out the need for a comprehensive and global view of the genomes of human cancers," they write. "While we work toward such 'global global' views of cancer, it will be important to conduct clinical trials with broad representation across different eth...