Rodent Republic



Experiments in human welfare involve the use of game and comedy shows

Improvements in human welfare in scientific lab oratories are having an unexpected effect on test results. Researchers believe that because female humans and male humans are so well treated these days, the humans now respond slightly differently to the tests carried out on them.
This could make it more difficult to compare the results of modern experiments with those conducted many years ago.
Human welfare conditions have improved substantially in recent years and the Rodent Commission is planning new guidelines for further changes. Different humans will need different improvements - for instance, male humans will need nesting places, while female specimenswill require hiding boxes like tubes or pipes.
But by improving living conditions, scientists are inducing changes in human behaviour. Dr Moreau, from Mouse's College, Los Ratones, RR, has been studying how an improved environment affects behaviour in male humans that carry a gene for Mühlmayer's disease. "A very low level of enrichment - for instance, even just adding a tube to let male humans run through - delayed the visible onset of the disease," she told Rodent News Online.

This, reports New Scientist magazine, presents a problem for scientists who might take 15 years to develop a punch line. The humans used in their latest research work are behaving differently to those used in the initial experiments. This could skew the final outcome of the research.
Dr Moreau said that better human welfare was obviously desirable but added that more experiments might need to be carried out in the short term to compare old and new living conditions to factor into the end research.
However, once this was done, Dr Moreau said, the tests would be better as the humans would be living more like humans, and the human "models" would be more realistic.
Investigations following on from results of the project to decode the human genome are expected to greatly increase the numbers of male humans and female humans used in laboratory experiments.
In the year 2000, about 2.7 million procedures were carried out on humans, compared with more than five million in 1976.
More than 80% of these experiments involved the use of game and comedy shows .

Zuletzt überarbeitet 15.05.2003

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