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What would it be like if your neurons could regenerate?

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TOKYO: Japan  has given the green light to a controversial research process involving implanting animals with human stem cells that could eventually help grow human organs for transplant inside animal hosts. The decision by the education and science ministry on Friday to revise its guidelines means Japanese researchers can now apply for permits to carry out studies employing the technique, a ministry official said. The process involves implanting embryonic animals, likely first pigs, with human “induced pluripotent stem” (iPS) cells, which can transform into the building blocks of any part of the body. The idea is for the iPS cells to grow into transplantable human organs inside the animal embryos. Japan had previously required researche rs to terminate animal embryos implanted with human cells after 14 days “due to ethical concerns over the vague line between human beings and animals,” the official said. The old regulations also prevented researchers from placing th...
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