传统观念认为,神经再生仅局限于胚胎及出生后早期,成年哺乳动物的中枢神经系统是不可再生的。近年来的研究表明,成年啮齿类和灵长类动物的海马、嗅球部位仍然可产生新的神经元,海马神经元的再生是某些依赖于海马的学习功能所需要的,这些区域的神经再生持续于动物的整个成年期。 The traditional wisdom is that nerve regeneration is confined to the embryo and early after birth, and the adult mammalian central nervous system is not regenerable. In recent years, studies have shown that hippocampus and olfactory bulb sites in adult rodents and primates still produce new neurons. The regeneration of hippocampal neurons is required for certain learning functions dependent on the hippocampus. Neural regeneration of these regions Lasts throughout the animal’s entire adult life.