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News Japan approves first human-animal embryo experiments

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thomas

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Hm, not sure what to make of this.....

A Japanese stem-cell scientist is the first to receive government support to create animal embryos that contain human cells and transplant them into surrogate animals since a ban on the practice was overturned earlier this year. Hiromitsu Nakauchi, who leads teams at the University of Tokyo and Stanford University in California, plans to grow human cells in mouse and rat embryos and then transplant those embryos into surrogate animals. Nakauchi's ultimate goal is to produce animals with organs made of human cells that can, eventually, be transplanted into people. Until March, Japan explicitly forbade the growth of animal embryos containing human cells beyond 14 days or the transplant of such embryos into a surrogate uterus. That month, Japan’s education and science ministry issued new guidelines allowing the creation of human–animal embryos that can be transplanted into surrogate animals and brought to term.
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nice gaijin

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SmitalChavan

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1. Using animal embryos to nurture human cells is the only realistic way to solve organ transplantation. Experiments have been carried out in the United States and Japan, but embryos have not been allowed to mature or be born.

2. In July this year, the Japanese government approved animal experiments for the first time, which allowed the implantation of animal embryos with human cells into the uterus and the cultivation of them to maturity, and allowed the use of mature animal embryos for related animal transplantation experiments, but it was forbidden to use them for human transplantation.

3. The approved experiments were not intended to raise embryos to maturity, but to explore the possibility of human stem cells developing in animals. The experiment, if successful, could mean a cure for diabetes and potentially a solution to the shortage of organ transplants, revolutionizing medical science.

4. Some Chinese media reports seriously distorted and misunderstood the experiment. The experiments involved only interspecific cell transplants, called chimeras to be precise, and the news about human-animal hybrids did not exist. As for the sensational reports in the Chinese media claiming that the experiment will lead to "hybrid animals", this is a serious distortion and misunderstanding of the experiment. The experiment is not to engage in "human-animal hybridization", and there is no mating behavior, but to do cell transplantation between different species, which is exactly called "chimera", the news said that "hybrid animals" will not survive in the world.
 
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