OHSU Turns Mouse into Factory for Human Liver Cells
Oregon Health & Science University researchers have figured out how to turn a mouse into a factory for human liver cells that can be used to test how pharmaceuticals are metabolized. The technique, published in the journal Nature Biotechnology, could soon become the gold standard not only for examining drug metabolism in the liver, which helps scientists determine a drug's toxicity, but also can be used as a platform for testing new therapies against infectious diseases that attack the liver, such as hepatitis C and malaria.
I'm sure PETA, RSPCA etc will all have something to say about this. But i see it less immoral that we're using mice (at their expense) to end human suffering rather than to test cosmetics or kill simply because they're in our home. At least this kind of animal cruelty (as it could be construed) has a negating good karma benefit.