Tuesday, May 05, 2009

Organs In Unexpected Places

I remember when I was living in Salt Lake City, UT, I knew a recent transplant from the East Coast, a zealous young woman who called herself the 'only Orthodox Jewish woman in all of Salt Lake City', and how embarrassed she was that her synagogue possessed an organ, and how eccentric, philo-Christian and un-Jewish that seemed to her, and ...

Oh, never mind.....:
Huddled at the back of her shed, bleating under a magnificent winter coat and tearing cheerfully at a bale of hay, she is possibly the answer to Japan’s chronic national shortage of organ donors: a sheep with a revolutionary secret.

Guided by one of the animal’s lab-coated creators, the visitor’s hand is led to the creature’s underbelly and towards a spot in the middle under eight inches of greasy wool. Lurking there is a spare pancreas.

If the science that put it there can be pushed further forward, Japan may be spared an ethical and practical crisis that has split medical and political opinion.

As the sheep-based chimera organ technology stands at the moment, says the man who is pioneering it, the only viable destination for the pancreas underneath his sheep would be a diabetic chimpanzee.

The organ growing on the sheep was generated from monkey stem cells but the man behind the science, Yutaka Hanazono, believes that the technology could be developed eventually to make sheep into walking organ banks for human livers, hearts, pancreases and skin.

...Japan defines death as the point when the heart permanently stops. The concept of brain death — the phase at which organs can most effectively be harvested from donors — does exist, but organs cannot be extracted at that point.

The long-term effect of the legal definition has been striking: organ donation in Japan is virtually nonexistent, forcing many people to travel abroad in search of transplants. In the United States, the rate of organ donors per million people is about 27; in Japan it is under 0.8.

The effect, say paediatricians, has been especially severe for children. The same law that discounts brain death as suitable circumstances for organ donation broadly prevents children under 15 from allowing their organs to be harvested.

To make matters worse, international restrictions on transplant tourism are becoming ever tougher, making Japan’s position even more untenable. To avert disaster, say doctors, Japan either needs the science of synthetic organ generation to advance faster than seems possible, or it needs a complete rethink on the Japanese definition of death.

...Taro Nakayama, the MP behind the most liberal revision — a change that would allow organs to be harvested from the brain-dead — is a former paediatrician. “Organ tourism is finished and Japan has to change its ways very quickly,” he said.

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