Electronic Telegraph
ISSUE 1720 Wednesday 9 February 2000
10,000 pigs killed
in transplant labs
By Marie Woolf, Political Correspondent
SCIENTISTS
have killed around 270 monkeys and more than 10,000 pigs during research
into animal-to-human transplants in the past four years, the Home Office
disclosed yesterday.
The revelation
has outraged MPs who have called for an inquiry into the ethics of using
animal organs for transplants into humans. Nearly 10,000 transgenic pigs,
bred with human genes, have been killed in experiments to transplant animal
hearts and kidneys into humans.
Scientists
have also killed around 270 monkeys in tests to find animal alternatives
to human donors.
MPs and
animal welfare groups say that the use of so many animals is questionable
on ethical grounds. Animal welfare groups say that the use of 10,000 pigs
far exceeds expectations and that ministers should focus on persuading
more people to give organs. Scientists have yet successfully to transplant
a pig organ into a human. They are still trying to find ways of tackling
the body's rejection of transgenic pig organs, and have encountered several
types of rejection in tests, including "acute vascular rejection" and
rejection involving white blood cells.
The human
genes in the pigs have helped overcome the first stage of rejection, which
usually occurs within hours of a transplant. Primates which have received
pigs' kidneys and hearts in experiments have yet to survive with the new
organs.
Sarah Kite,
of the British Union for the Abolition of Vivisection, said: "We are clearly
still years away from any clinical application of animal-to-human organ
transplants. It is outrageous that such a large number of animals have
died as a result of this technology. What the government should be doing
is implementing an opt-out donor card rather than pursuing an ethically
and scientifically dubious path."
The disclosure
of the number of animals used was in a letter from Mike O'Brien, the Home
Office minister, to Norman Baker, the Liberal Democrat MP for Lewes, East
Sussex. Mr Baker said: "The minister needs to give an urgent statement
and unless there is compelling evidence that these experiments are worthwhile
they should be stopped forthwith."
The Government
has allowed research into the use of pigs for transplants with human genes
because of the shortage of human donors. The Government's watchdog on
xenotransplantation has drawn up guidelines for people receiving animal
organs. These will include a pledge never to have children and submit
to life-long monitoring.
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