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Most, But Not All, Canadians With Chronic Conditions Get Clinically Recommended Tests
Most Canadians with chronic conditions have a regular place of care, but there are some reported gaps in the management of their conditions according to a new study released today by the Canadian Institute for Health Information (CIHI). The study, Experiences With Primary Health Care in Canada, measures access to and quality of care from a patient perspective across Canada"s 10 provinces. The study is based on the responses of more than 11,000 people age 18 and older to Statistics Canada"s 2008 Canadian Survey of Experiences With Primary Health Care, which was jointly funded by CIHI and the Health Council of Canada.
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Supermarket Discounts Promote Unhealthy Choices
Supermarket shoppers may be encouraged to buy sugar-filled, calorie-rich drinks by discounts and promotions, according to New Zealand research.
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High Risk Of Dementia For Middle-Aged People Living Alone
Middle-aged people living alone have twice the risk of developing dementia and Alzheimer"s disease in later life compared with married or cohabiting people, while being widowed or divorced in mid-life carries three times the risk, according to a study led by Miia Kivipelto from the Swedish medical university Karolinska Institutet and published on http://www.bmj.com.
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Bridging The Mouse-Human Gap With Engineered Pig Stem Cells

The discovery that adult skin cells can be "reprogrammed" to behave like stem cells has been a major scientific boon, providing a way to tap the potential of embryonic stem cells without the associated ethical quandaries. Now, in a study appearing online in JBC, researchers have created a line of such reprogrammed stem cells from adult pigs. As pigs are large animals with a physiology very similar to humans, this work provides a valuable model to study the therapeutic potential of this new "induced pluripotent stem cell" (iPS) technology. iPS cells have already been developed from both mice and humans. Both systems will help researchers answer many biological and genetic questions about these cells, but still leave a gap before clinical applications can begin. These iPS cells cannot be tested on humans before thorough safety and efficacy trials in animal models, but the size, physiology and short lifespan of mice makes them less than ideal for these trials. Duanqing Pei and colleagues turned to a better pre-clinical model: pigs. These large animals share a remarkably similar biology to humans, as evidenced by their already extensive contributions to medicine, such as using pig insulin to treat diabetes or pig heart valves in transplant surgery. The research group modified the current iPS protocols to successfully generate a line of stem cells from a miniature Tibetan pig (whose smaller size would make breeding and maintenance easier). A biochemical analysis revealed these cells expressed the key proteins that would classify them as "stem cells" and had the ability to differentiate into many other types of cells. Importantly, these pig iPS cells more closely resembled human stem cells than other animals, confirming their value in pre-clinical studies. The researchers believe porcine iPS technology is an emerging and exciting field that should progress quickly and lead to many applications. Notes: "Generation of Induced Pluripotent Stem Cell Lines from Tibetan Miniature Pig" by Miguel Angel Esteban, Jianyong Xu, Jiayin Yang, Meixiu Peng, Dajiang Qin, Wen Li, Zhuoxin Jiang, Jiekai Chen, Kang Deng, Mei Zhong, Jinglei Cai, Liangxue Lai and Duanqing Pei. Corresponding Author: Duanqing Pei, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, China. Article Link: http://www.jbc.org/cgi/content/abstract/M109.008938v2 Nick Zagorski American Society for Biochemistry and Molecular Biology


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