But preliminary studies of Parkinson's patients suggest that pig cells may work as well as those from human fetuses. 不过,对帕金森氏病人的初步研究表明,猪细胞与人胚胎细胞所起的功能一样好。
The company said its method makes stem cells from a single cell taken from an eight-cell human embryo. 公司说方法是干细胞从八个人胚胎细胞的单一细胞中得来。