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For Stem Cell Research

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Unipotent: Can only turn into that one cell type. November 14, 2006. Kyle Fekete Section 605 ... chemical conditions the ES can turn into 200 different types of ... – PowerPoint PPT presentation

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Title: For Stem Cell Research


1
For Stem Cell Research
What, Why, And How?
2
What is a Stem Cell?
  • There are four different potencies for the stem
    cell. (The ability to change into different cell
    types.)
  • Totipotent embryonic and extraembryonic
  • Pluripotent Any cell type, except for above.
  • Multipotent Cells related to it, (ex. red
    white blood cells).
  • Unipotent Can only turn into that one cell type.

3
What is a Stem Cell?
  • There are two types of stem cells.
  • Embryonic stem cells
  • The embryonic stem cell is derived from the inner
    cell mass of a blastocyst, 4-5 day old embryo.
  • The embryo comes from in vitro fertilized eggs
    that no longer have any use to the host parent.
  • The ES is pluripotent and once given the correct
    chemical conditions the ES can turn into 200
    different types of specialized cells in the adult
    body.

4
What is a Stem Cell?
  • Adult stem cells
  • The adult stem cell can be found in any mature
    organism. But it is rare to find them in one
    tissue sample.
  • They have the same function as embryonic stem
    cells because they have the regenerative ability.
  • The advantage of an adult stem cell is that it
    has less of a chance of being rejected by the
    individuals immune system.
  • Most of the government funding towards stem cell
    research has gone to the adult stem cells.

5
Why the research?
  • There are thousands of different cell types in
    the human body.
  • Once cultivated in the special dish, the stem
    cells evolve into many different types of these
    cells.
  • It requires massive amounts of research to
    discover all of these cells.

6
Why the research?
  • In order for the stem cell to evolve into the
    correct cell type, there has to be a series of
    correct chemical signals.
  • Since the specialized cells are being
    artificially made, we need to develop biochemical
    solutions so the stem cell will turn into the
    desired cell type.
  • This of course requires tons of money and
    research.

7
Why the Research?
  • Cells being developed in the present may have
    trouble keeping up with other cells. An example
    is cardiac cells, they might beat to a different
    rhythm than the individuals heart.
  • After making nerve cells, the doctor will have to
    rewire the nerve cell to the individuals brain.
    This is a great obstacle.
  • Most important is finding a way around the
    phenomenon of tissue rejection by the immune
    system.

8
How Can Stem Cell Research Help Society?
  • The main idea in the long run is to develop a
    cell therapy.
  • Doctors will replace dead and/or sick cells in
    the human body.
  • Cancer
  • Parkinson's / Lou Gehrig
  • Spinal chord injuries
  • Diabetes
  • Multiple Sclerosis
  • Macular Degeneration

9
Increase in Stock Value
  • This graph shows that since the mid-term
    elections, the average value for stem cell
    company shares have been rising.
  • This means there will be more advances in stem
    cell research.

10
How Can I Support Stem Cell Research?
  • Here are a few ways to help or donate.
  • http//www.stemcellresearchfoundation.org/Give/giv
    e.htm
  • You can donate money with the above.
  • http//www.marrow.org/DONOR/FAQs/PBSC_Donation_FAQ
    s/index.html
  • You can donate marrow or other ways to help with
    the above.

11
References
  • "Stem Cell." Wikipedia. 11 November 2006. 14 Nov
    2006 lthttp//en.wikipedia.org/wiki/Stem_cellgt.
  • "Frequently Asked Questions." Stem Cell Research
    Foundation. Stem Cell Research Foundation. 14 Nov
    2006 lthttp//www.stemcellresearchfoundation.org/Ab
    out/FAQ.htmgt.
  • Stem Cells. ClearlyExplained.com 8th June 2002.
    14 Nov 2006 http//clearlyexplained.com/nature/lif
    e/cells/stemcells.htmlgt.
  • The Stem Cell Debate. Time. July 2001. 14 Nov
    2006 http//www.time.com/time/2001/stemcells/gt.
  • Stem Cell. YahooFinance. Yahoo.com. 14 Nov 2006
    http//finance.yahoo.com/q?sstemcelldtsubmit
    GetQuotes
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