Stem Cells and the End of Aging Part 3 of 6

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.

Category:

Howto & Style

Tags:

• adult
• stem
• cells
• HHMI
• health
• medicine
• biologay
• embryonic
• development
• regeneration
• evolution
• disease
• treatment

[curingaging00]

if you dont wanna cure aging you really need a life. SURE LETS KILL 100,000 PEOPLE A DAY... just cause you fear the unknown.

NO! idiot learn to think outside the fucking box!

[FIGHTFANNERD3]

thank you

[ashtongrist]

I just love the nuturing way she softy explains things.... I wish she was my mother and that sigmund fruad was wrong but oh well.....

[sonofsun4]

So, after all, Elisabeth Bathory (Cachticka pani-or Bloody lady of Cachtice) in 15th century, who killed upwards of 600 virgins, was at least partially right (or you can say "on the right path"), bathing in blood of young virgin girls.....

[tedhuntington]

I think the genome is like a computer program. I think bodies go through stages. So even muscle regen doesnt stop skull development. What we need to understand is what increments the program. Perhaps a few proteins start, they trigger the next set/stage of proteins (which inhibit the previous stage proteins), etc. what say you?