Martin Bobrow, a chair of the Academy of Medical Sciences, urged the UK national body of experts to place regulations on animal research, especially implantation of human cells into other animals.
A team led by Prof Huang Shuzheng, of Jiao Tong University in Shanghai, has experimented for five years transplanting stem cells from human umbilical cords into goat embryos in order to better understand how to combat diseases and test new drugs, globalpost said.
The experimentations, called "animals containing human material" or (ACHM) included implanting mice with human tumors to test new anti-cancer drugs, and now, inserting human genes into the DNA of goats to treat human blood clotting disorders.
Chinese news agencies reported thirty-nine goats planted with blood and internal organs similar in DNA to humans, were being reared on an experimental farm in a China.
Their research confirmed that stem cells could be taken from one organism and transplanted into another without rejection.
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