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Identification Of Brain Difference In Psychopaths
Professor Declan Murphy and colleagues Dr Michael Craig and Dr Marco Catani from the Institute of Psychiatry at King"s College London have found differences in the brain which may provide a biological explanation for psychopathy. The results of their study are outlined in the paper "Altered connections on the road to psychopathy", published in Molecular Psychiatry.
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Discovery Of Neural Stem Cell Differentiation Factor
Neural stem cells represent the cellular backup of our brain. These cells are capable of self-renewal to form new stem cells or differentiate into neurons, astrocytes or oligodendrocytes. Astrocytes have supportive functions in the environment of neurons, while oligodendrocytes form the myelin layer around axons in order to accelerate neuronal signal transmission. But how does a neural stem cell "know" which way it is supposed to develop? On the molecular level receptors of the Notch family play a significant role in this process. So far, only stimulating extracellular ligands of Notch receptors had been described. Biochemists of Goethe University Medical School now describe a long time assumed but not yet identified soluble Notch inhibitor.
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Explaining A Dog's 'Guilty Look'
What dog owner has not come home to a broken vase or other valuable items and a guilty-looking dog slouching around the house? By ingeniously setting up conditions where the owner was misinformed as to whether their dog had really committed an offense, Alexandra Horowitz, Assistant Professor from Barnard College in New York, uncovered the origins of the "guilty look" in dogs in the recently published "Canine Behaviour and Cognition" Special Issue of Elsevier"s Behavioural Processes.
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Hot Dogs Should Carry Cancer Warning Labels Says US Non Profit Group

A US non-profit organization filed a lawsuit on Wednesday asking a New Jersey county court to force food companies to put labels warning of cancer risks on any hot dogs they sell in New Jersey. Described by the Los Angeles Times (LAT) as a vegan advocacy group, Cancer Project, wants food companies like Oscar Mayer and Hebrew National, big names in the hot dog world, to put labels on their hot dogs warning that eating this product and other processed meats "increases the risk of cancer". President of the Cancer Project, Neal Barnard, who is an adjunct professor at the George Washington University medical school in Washington, DC, told LAT that: "Just as tobacco causes lung cancer, processed meats are linked to colon cancer." "Companies that sell hot dogs are well aware of the danger, and their customers deserve the same information," he added. The lawsuit, which according to the LAT is seeking class action status, is brought against ConAgra Foods Inc (owners of Hebrew National), Kraft Foods Inc (owners of Oscar Meyer), Sara Lee Corp, Nathan"s Famous Inc, and Marathon Enterprises Inc. 62 per cent of Americans eat some kind of processed pork, says Cancer Project, adding that in 2006, 1.5 billion pounds of hot dogs were consumed in the US, at an average of 32 pounds a year per person. The group refers to a report from the American Institute for Cancer Research and the World Cancer Research Fund where scientists say there is no safe amount of processed meat that can be eaten, and that just one 50-gram serving of bacon, sausage, deli meats or other processed meats, every day increases a person"s chance of getting colorectal cancer by 21 per cent on average. Processed and cured meats contain nitrites which are added to help preserve the meat. When ingested, these break down into nitrosamines and other chemicals that are thought to be cancer-causing. Every year, about 150,000 Americans are diagnosed with colorectal cancer, and about 50,000 Americans are expected to die of the disease in 2009. However, there are mixed views about the research evidence, with some scientists saying it could be the fat content of the food (most processed meats also tend to have high fat) that is linked to cancer. For instance a Harvard study that pooled data from several studies found no link between red and processed meat and cancer but it did find there was a lower risk of cancer when fish and chicken consumption was higher. There has been a strong reaction from the food industry and other nutritionists have also been skeptical. Sydney Lindner, a spokeswoman from Kraft told the press: "These proposals are unfounded. Hot dogs have been enjoyed by consumers for more than 100 years." One nutrionist interviewed by the LAT said that people should be more worried about the food that is usually eaten with the hot dog, such as fat-laden potato, sugary drinks and desserts and macaroni salads. Others say that while people should be careful about how much meat they eat, the occasional hot dog is not going to do them any harm. And even if it may be true that eating too much of a certain food like processed meat increases a person"s risk of cancer, putting labels on everything will just lead to "warning fatigue". The lawsuit follows a campaign earlier this month when Cancer Project sponsored a provocative highway billboard near Busch Stadium in St. Louis on the day that thousands of baseball fans flocked to watch President Obama throw the opening pitch to the 2009 All-Star Game. The 48-foot wide digital billboard, located on I-70, one mile west of Lindbergh Boulevard, showed a picture of hot dogs jammed in a cigarette pack carrying the label "Unlucky Strikes" and the text: "Warning: Hot Dogs Can Strike You Out -- For Good." Cancer Project says on its website that they want Baseball Commissioner Bud Selig to put "dietary disaster" warning labels on hot dogs served at Major League Baseball stadiums because, in their words, "processed meats have been convincingly linked to colorectal cancer". Cancer Project describes itself as a group of physicians, researchers, and nutritionists who wish to "educate the public about the benefits of a healthy diet for cancer prevention and survival". The organization is affiliated to the Physicians Committee for Responsible Medicine and is based in Washington, DC. s: Los Angeles Times, The Cancer Project. Written by: Catharine Paddock, PhD Copyright: Medical News Today Not to be reproduced without permission of Medical News Today


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