Supplements of genetically modified bacteria could be used to treat liver and bowel diseases by mopping up toxins inside the gut. Scientists genetically altered E coli Nissle (sold as a probiotic) to turn harmful ammonia into a dietary amino acid, with successful tests in mice and healthy humans.

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Supplements of genetically modified bacteria could be used to treat liver and bowel diseases by mopping up toxins inside the gut. Scientists genetically altered E coli Nissle (sold as a probiotic) to turn harmful ammonia into a dietary amino acid, with successful tests in mice and healthy humans.