http://www.generef.com/ GeneRef - Science News, Genomics, Bioinformatics, Nanotechnology, A Global Resource en-us Sun, 5 Feb 2012 15:35:00 PDT kcowing@spaceref.com (Keith Cowing) mkboucher@spaceref.com (Marc Boucher) Copyright 2009, SpaceRef Interactive Inc. http://www.generef.com/images/generef.sm.jpg http://www.generef.com/ 100 25 GeneRef - Science News, Genomics, Bioinformatics, Nanotechnology, A Global Resource http://generef.com/newsstory.rss.html?pid=102471 http://generef.com/newsstory.rss.html?pid=102471 A genetic variant that increases the risk of a common type of stroke has been identified by scientists in a study published online in Nature Genetics today. This is one of the few genetic variants to date to be associated with risk of stroke and the disco Sun, 5 Feb 2012 10:18:09 PDT http://generef.com/newsstory.rss.html?pid=102470 http://generef.com/newsstory.rss.html?pid=102470 UBC researchers have discovered the molecular pathway that enables receptors inside immune cells to find, and flag, fragments of pathogens trying to invade a host. The discovery of the role played by the molecule CD74 could help immunologists investigate Sun, 5 Feb 2012 10:17:16 PDT http://generef.com/newsstory.rss.html?pid=102461 http://generef.com/newsstory.rss.html?pid=102461 Two separate research findings have the potential to give us a much more sophisticated understanding of what goes wrong in Alzheimer's disease and what can be done to prevent or repair damage in the brain. Fri, 3 Feb 2012 13:17:22 PDT http://generef.com/newsstory.rss.html?pid=102459 http://generef.com/newsstory.rss.html?pid=102459 One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain how the aging process occurs in the brain. Fri, 3 Feb 2012 11:19:12 PDT http://generef.com/newsstory.rss.html?pid=102446 http://generef.com/newsstory.rss.html?pid=102446 Biologists who released lizards on tiny uninhabited islands in the Bahamas have uncovered a seldom-observed interaction between evolutionary processes. Jason Kolbe, a biologist at the University of Rhode Island -- along with colleagues at Duke University, Fri, 3 Feb 2012 08:18:11 PDT http://generef.com/newsstory.rss.html?pid=102447 http://generef.com/newsstory.rss.html?pid=102447 A preference for fatty foods has a genetic basis, according to researchers, who discovered that people with certain forms of the CD36 gene may like high-fat foods more than those who have other forms of this gene. Fri, 3 Feb 2012 08:18:11 PDT http://generef.com/newsstory.rss.html?pid=102442 http://generef.com/newsstory.rss.html?pid=102442 The problem of parasitism occurs at all levels right down to the DNA scale. Genomes may contain up to 80 percent "foreign" DNA but details of the mechanisms by which this enters the host genome and how hosts attempt to combat its spread are still the subj Fri, 3 Feb 2012 07:18:07 PDT http://generef.com/newsstory.rss.html?pid=102441 http://generef.com/newsstory.rss.html?pid=102441 Genetic switches called enhancers and the molecules that activate them can be used to draw a cell's family tree, EMBL scientists have found. Fri, 3 Feb 2012 07:17:20 PDT http://generef.com/newsstory.rss.html?pid=102437 http://generef.com/newsstory.rss.html?pid=102437 American scientists believe a new procedure to repair severed nerves could result in patients recovering in days or weeks, rather than months or years. The team used a cellular mechanism similar to that used by many invertebrates to repair damage to nerve Thu, 2 Feb 2012 21:17:18 PDT http://generef.com/newsstory.rss.html?pid=102430 http://generef.com/newsstory.rss.html?pid=102430 New research published in BioMed Central's open access journal BMC Genomics has used diamagnetic levitation to counteract the effects of gravity on the fruit fly and found that the expression of several genes was affected. This included genes involved in Thu, 2 Feb 2012 14:17:22 PDT http://generef.com/newsstory.rss.html?pid=102417 http://generef.com/newsstory.rss.html?pid=102417 Now a team of scientists at the University of California, San Francisco has uncovered many genes influenced by the male and female sex hormones testosterone and estrogen that, in turn, govern several specific types of male and female behaviors in mice. Thu, 2 Feb 2012 11:18:10 PDT http://generef.com/newsstory.rss.html?pid=102405 http://generef.com/newsstory.rss.html?pid=102405 A recent study by Drs. Glenn Palomaki and Jacob Canick of Women & Infants Hospital shows that a new DNA test that identifies Down syndrome in pregnancy can also detect trisomies 18 and 13. Thu, 2 Feb 2012 09:18:12 PDT http://generef.com/newsstory.rss.html?pid=102399 http://generef.com/newsstory.rss.html?pid=102399 Scientists have tracked the activity, across the lifespan, of an environmentally responsive regulatory mechanism that turns genes on and off in the brain's executive hub. Genes implicated in schizophrenia and autism are among those in which regulatory ac Thu, 2 Feb 2012 09:17:26 PDT http://generef.com/newsstory.rss.html?pid=102400 http://generef.com/newsstory.rss.html?pid=102400 Tuberculosis patients may receive treatments in the future according to what version they have of a single 'Goldilocks' gene, says an international research team from Oxford University, King's College London, Vietnam and the USA. Thu, 2 Feb 2012 09:17:26 PDT http://generef.com/newsstory.rss.html?pid=102401 http://generef.com/newsstory.rss.html?pid=102401 The new evidence shows that the sex hormones – testosterone, estrogen, and progesterone – act in a key region of the brain, switching certain genes on and others off. When the researchers tinkered with each of these genes one by one, animals showed subt Thu, 2 Feb 2012 09:17:26 PDT http://generef.com/newsstory.rss.html?pid=102402 http://generef.com/newsstory.rss.html?pid=102402 In a recent study led by Uppsala University, the researchers compared the DNA of identical twins of different age. They could show that structural modifications of the DNA, where large or small DNA segments change direction, are duplicated or completely l Thu, 2 Feb 2012 09:17:26 PDT http://generef.com/newsstory.rss.html?pid=102388 http://generef.com/newsstory.rss.html?pid=102388 Cell biologists at Johns Hopkins have identified key steps in how certain molecules alter a cell's skeletal shape and drive the cell's movement. Thu, 2 Feb 2012 08:17:21 PDT http://generef.com/newsstory.rss.html?pid=102373 http://generef.com/newsstory.rss.html?pid=102373 Extensive DNA tests by experts at the University of Warwick on two deer carcasses found in Gloucestershire have not found any indication of a big cat presence. Wed, 1 Feb 2012 16:18:11 PDT http://generef.com/newsstory.rss.html?pid=102370 http://generef.com/newsstory.rss.html?pid=102370 The same gene mutations linked to inherited, early-onset Alzheimer's disease have been found in people with the more common late-onset form of the illness. The discovery by researchers at Washington University School of Medicine in St. Louis may lead doc Wed, 1 Feb 2012 14:18:09 PDT http://generef.com/newsstory.rss.html?pid=102369 http://generef.com/newsstory.rss.html?pid=102369 Over the first few years of life, human cognition continues to develop, soaking up information and experiences from the environment and far surpassing the abilities of even our nearest primate relatives. In a study published online today in Genome Researc Wed, 1 Feb 2012 14:17:23 PDT