1986年2月在美国举行的“神经元营养障碍和轴索转移”学术讨论会上,加拿大麦克吉尔大学的 Agnayo等报告:将大鼠胚胎的脑细胞移植到成年大鼠的大腿神经内,可产生供研究脑老化的新模型。他们的实验分如下几步:从分娩前一周的雌大鼠子宫中取出部分胚胎脑,分离其中以后将发育成大脑皮质的细胞,然后用组织培养液振荡培养几天;最后将脑细胞培养物注射到成年大鼠的坐骨神经内。进入动物腿部的移植 In February 1986 in the United States held a “neuronal dystrophy and axonal transfer,” the Symposium, McGill University Canada Agnayo and other reports: the rat embryonic brain cells transplanted into the adult rat’s thigh nerve can be Produce a new model for studying brain aging. Their experiment was divided into the following steps: taking part of the embryonic brain from the female rat uterus one week prior to delivery, isolating the cells in which the cerebral cortex will develop later, and then shaking culture for several days in tissue culture; finally, the brain cell culture Injected into the sciatic nerve of adult rats. Into the animal’s leg transplant