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本文对不同年龄组雄性SD大鼠红核神经元的超微结格进行了观察，结果表明：（1）红核神经无核周体中脂褐素在幼年组已开始出现，并随增龄增多，其附近线粒体的形态有所改变，该周体中其他细胞器随增龄也有一定程度的形态改变；（2）红核神经元细胞核随增龄出现核膜内折现象；（3）在老年级红核神经处观察到微丝缠绕线粒体群的现象．上述结果说明红核神经元随增龄确实存在着一定的形态学改变．
In this paper, the ultrastructure of red nucleus neurons in male SD rats of different age groups was observed. The results showed that: (1) Lipofuscin in the nucleus of the red nucleus had begun to appear in the juvenile group and increased with age, The morphology of mitochondria in the vicinity of the nucleus is changed, and other organelles in the pericarcinoma also have a certain degree of morphological changes with age; (2) The phenomenon of filaments entangling mitochondria was observed. The above results show that there is indeed a certain morphological changes of the nucleus neurons with age.