Small strands of RNA, called microRNA, inhibit prostate cancer stem cells in mice.
Memory loss has been reversed in Alzheimer's mice by boosting levels of a memory related protein.
Cancer tumours somehow escape the body's immune system, even when that immune system is primed by a vaccine designed to specifically target the cancer.
Tomorrow the film Extraordinary Measures will be released in UK cinemas.
The 2009 Albert Lasker basic medical research prize has just gone to stem cell pioneers John Gurdon and Shinya Yamanaka for their work using frogs and mice.
A new kind of stem cell, that doesn't involve destroying embryos, has produced new life.
An Understanding Animal Research Oceania guide for families and young people
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