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News -02-04-08 Obesity Caused Partly by a Virus? (ABC News) "New research announced Monday found that when human stem cells the blank slate of the cell world were exposed to a common virus they turned into fat cells. They didn't just change, they stored fat, too." "While this may be a guilt-free explanation for putting on pounds, it doesn't explain all or even most of America's growing obesity problem. But it adds to other recent evidence that blames expanding waistlines on more than just super-sized appetites and underused muscles." "For several years, researchers have looked at a possible link between obesity and this common virus, called adenovirus-36, from a family of viruses that cause colds and pinkeye in people. They had already found that a higher percentage of fat people had been infected with the virus than nonfat people. They had exposed animals to the virus and got them to fatten up and even found a a gene in the virus that causes animals to get obese." 02-08 -03-14-07 Gene that Makes You Eat Too Much (BBC News) "Scientists have discovered a gene which may increase the risk of obesity by encouraging people to overeat." "The gene, GAD2, increases production of a chemical which boosts the appetite." 03-07 Obesity and Genes (Science Daily) "It is a common perception that being obese or overweight is the result of a person's genetic makeup. However, Dr. Claude Bouchard, a well-known obesity geneticist, has stated that genes play only a modest role in the problem of obesity in the U.S. Although the body of research linking specific genes to susceptibility for obesity has uncovered intriguing results, these findings tend to be very complex and difficult to apply to the current epidemic of obesity in the U.S. Furthermore, no research has established the existence of genes necessary for the development of obesity (i.e., genes that, if present, will clearly cause obesity)." 03-07 Papers Obesity and Genes (ApplesforHealth.com) "By genetically engineering massively obese mice, an international team of scientists has uncovered how the brain tells the body to burn calories and lose weight." 8-02

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