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Health Care at the Crossroads: Strategies for ... - Joint Commission

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<strong>Health</strong> <strong>Care</strong> <strong>at</strong> <strong>the</strong> <strong>Crossroads</strong>: Str<strong>at</strong>egies <strong>for</strong> Narrowing <strong>the</strong> Organ Don<strong>at</strong>ion Gap and Protecting P<strong>at</strong>ients<br />

Xenotransplant<strong>at</strong>ion – transplant<strong>at</strong>ion of<br />

animal organs into humans – is still highly<br />

experimental. Scientists – who have narrowed<br />

<strong>the</strong>ir current focus to <strong>the</strong> use of pig organs –<br />

continue to grapple with microbiologic safety<br />

and immunological barriers to xenotransplant<strong>at</strong>ion.<br />

135 In addition, beyond immunological<br />

tolerance, <strong>the</strong> long-term viability of pig organs<br />

in <strong>the</strong> human body remains to be determined.<br />

Never<strong>the</strong>less, <strong>the</strong> ultim<strong>at</strong>e success of xenotransplant<strong>at</strong>ion<br />

could provide a nearly<br />

limitless supply of donor organs.<br />

autologous graft th<strong>at</strong> bypasses <strong>the</strong> rejection<br />

response. 136 Scientists have also regener<strong>at</strong>ed<br />

corneas <strong>for</strong> <strong>the</strong> sight-impaired. 137 Fur<strong>the</strong>r,<br />

progress is being made in experimental ef<strong>for</strong>ts<br />

to regener<strong>at</strong>e pancre<strong>at</strong>ic function in diabetic<br />

p<strong>at</strong>ients, and similar work is being directed to<br />

regener<strong>at</strong>ion of liver function. 138<br />

Stem cell <strong>the</strong>rapy also holds promise <strong>for</strong> <strong>the</strong><br />

tre<strong>at</strong>ment of diseases th<strong>at</strong> culmin<strong>at</strong>e in organ<br />

failure and <strong>for</strong> <strong>the</strong> regener<strong>at</strong>ion of organs th<strong>at</strong><br />

now can only be replaced through transplant<strong>at</strong>ion.<br />

Such regener<strong>at</strong>ion would also overcome<br />

<strong>the</strong> problems of chronic graft rejection and <strong>the</strong><br />

need <strong>for</strong> potent immunosuppressive <strong>the</strong>rapy<br />

and its side-effects. Through stem cell <strong>the</strong>rapy,<br />

scientists have already been able to grow<br />

skin from a p<strong>at</strong>ient’s strand of hair. By producing<br />

<strong>the</strong> equivalent of <strong>the</strong> p<strong>at</strong>ient’s own<br />

skin, a burn p<strong>at</strong>ient is able to receive an<br />

OVER THE LONG TERM, NEW AND EMERGING SCIENCE AND TECHNOLOGIES OFFER THE<br />

POTENTIAL TO ALLEVIATE THE PROBLEMS OF GRAFT REJECTION AND FAILURE, ELIMINATE THE<br />

RISKS BORN FROM IMMUNOSUPPRESSIVE THERAPY, AND EVEN CREATE ALTERNATIVE<br />

APPROACHES TO CLOSING THE ORGAN DONATION GAP.<br />

35

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