Zannos Grekos, MD: Stem cell research
Posted on: 29 September 2008
Dr Zannos Grekos MD delivers a presentation in Washington DC about stem cell research. Stem cells are being used for the regeneration of tissue and organs. He highlights the advantages and disadvantages of each type of stem cell, from embryonic to cord, to adult stem cells. The basic features of stem cells are that they are able to self renew and also differentiate into effecter cells. This means that they can be educated to regenerate the specific organ that needs treatment.
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Lifelong Fitness Linked to Longevity
People who stay even moderately fit as they age may live longer than those who are out-of-shape. Researchers from the University of Otago ( New Zealand) studied 4,384 middle-aged and older adults whose fitness levels were assessed via exercise treadmill tests, then whom were followed for nine years. When the team separated the participants into five groups based on fitness levels, they found that one-quarter of the least-fit men and women had died during the study period, as compared to 13% of those who were slightly more in-shape.
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