Ms Jeggle said it would mean that animal experiments are only carried out when there is "no possible alternative".
The hope then - and now - is that such animal experiments will translate into similar breakthroughs with patients.
Recent animal experiments by neuroscientists at New York University suggest that when a traumatic event is recalled, it must be re-stored to be retained.
Responding for the government, Lord Henley promised the coalition would "look closely at all suggestions" to reduce animal experiments, and that its approach would be "science-led".
In animal experiments, such transplants mature into adult nerve cells and insinuate themselves into the damaged cord, restoring at least some movement to an otherwise paralysed body.
Despite this evidence linking the virus to the cancer, there is still no proof that SV40 actually causes it in humans, although animal experiments suggest this can happen.
However, as the more cautious of them admit, that cannot be verified until the animal experiments are scaled up to proper, long-term human studies which can verify their hypothesis.
The groups have argued that the licensing system operates like an old boys' club, with decisions being made in secret by scientists who are generally in favour of animal experiments.
In Westminster Hall, there are a series of backbench debates (from 9.30am) - and my eye was caught by the Conservative Henry Smith's debate on government policy on animal experiments.
Kosan has generated several hundred variants of the antibiotic, some of which wipe out strains of bacteria that are resistant to most other marketed drugs--in test tube and animal experiments, anyway.
Arena is going to need to agree with the FDA on an independent pathologist to figure out a path forward on the rat carcinogenicity studies it has already done and possibly do more animal experiments.
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The anti-vivisection group BUAV and the European Coalition to End Animal Experiments (ECEAE) said they had spent more than 20 years campaigning on the issue and had enlisted celebrities including Sir Paul McCartney, Morrissey and Sienna Miller to their cause.
In a series of animal experiments published over the past year, university-based neuroscientists genetically engineered mice and monkeys with different types of neurons primed to be uniquely responsive to shades of laser light, so that a single type of activity or behavior could be altered instantly without affecting anything else.
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Through further experiments in human cells and animal studies the researchers found that a protein called NF-kB lured zinc into the immune cells that responded fastest to fight infection.
"Previous experiments have indicated that when you select for a reduction in aggressiveness, you obviously get a tamer animal but you also get an animal that retains juvenile characteristics much longer during development, sometimes into adulthood, " said Dr Axelsson.
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