Objective To isolate and culture human neural stem cells from elder embryonic brain.

目的从大胚龄人胚脑中分离培养并鉴定神经干细胞。

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Human brain plays a crucial role in the life of individual, from embryonic development to growth, maturation and aging.

从胚胎发育到个体生长、成熟、衰老的整个生命过程中，脑组织始终发挥着十分重要的作用。

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Human brain plays a crucial role in the whole course of an individual's life, from embryonic development to growth, maturation and aging.

从胚胎发育到个体生长、成熟、衰老的整个生命过程中，人脑始终发挥十分重要的作用。

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