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Stem Cells and the End of Aging Part 1 of 6

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Uploaded by on Apr 25, 2007

This lecture, by Dr. Nadia Rosenthal, discusses the role of stem cells in the regeneration and repair of tissues, and their possible medicinal application through the harnessing of their regenerative properties.

HHMI description:
Human tissues vary in their ability to heal and regenerate. The nervous system has weak powers of regeneration, while the skin is quick to make new cells for repair. Mammalian muscle cells are intermediate in their ability to regenerate. Human muscle can regenerate in response to minor wounds and normal wear and tear, but humans will not grow a new bicep, for example, in response to amputation. The heart is the most important muscle in the body and yet has feeble regenerative capabilities. Research into the wholesale production of new replacement organs and limbs is in its infancy, but research into enhancing normal levels of regeneration is progressing rapidly. Recent discoveries concerning the location and characteristics of adult stem cells and the signals that wounded tissue produces to activate stem cells have increased our understanding of regeneration. Insulin-like growth factor 1 (IGF1) is an example of an important stem cell communication molecule. If the activity of the growth factor is experimentally enhanced, muscle regeneration improves.

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  • Curing aging is a must.

    we need to cure aging. 100k people die EVERY DAY from aging. many people believe they just die a peaceful death. but thats unlikely. 2.4 trillion dollers 3/4 usa wealth is spent on the elderly every year. curing aging will not only save an extreme number of people... but will also save a ton of money.

  • Ending aging would save more lives than anything else. Aging is a terminal disease that we all carry.

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  • @curingaging00 yeah that could work, but then anyone who wants a child would have to give up their life.

  • @ImmaEminem Overpopulation will be solved through technological advances within the field of green technology, renewable energy, vertical farming, increasing the efficiency of everything that runs on electricity. Increasing the carrying capacity is the solution.

    I want people to have an option on whether to grow old and die or stay young. Those who don't want to be cured simply won't have be cured.

  • @curingaging00 yeah, because we need more people on this planet right?

    I didnt think so..

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