They suggested that it might be possible to overcome the risk of immune rejection of the donor cells in humans.

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But there is a chronic shortage of donor organs and a high risk of rejection after transplantation.

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But he's received an infusion of the donor's bone marrow cells to further prevent rejection of his new arms.

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Taking donor cells from a close relation reduces the risk of rejection of the transplanted cells by the recipient.

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Could patients have themselves cloned in order to harvest cells from a genetically-identical embryo, gaining a donor and avoiding the major problem of transplant surgery: rejection of foreign tissue by the immune system?

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Prof Fabre, an academic at King's College London who works on the rejection of organs, and Conservative Montgomeryshire MP Glyn Davies have proposed a national donor and transplant day.

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The donor, reclusive pharmaceuticals heiress Ruth Lilly, had virtually no prior contact with the journal other than rejection letters for her flowery poems.

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