Thechangesof apoptosisThe expression of bd-2 was not found in the apoptotic genes, and the least in theneurons of models, which reveals the dues of the relationship between the apoptosls ofageing neurons and the regulation of the expression of gene.

• D-半乳糖模型组神经元TUNEL阳性率最高，提示其脑神经细胞数目减少，细胞脱失有细胞凋亡机制参与； 同时模型组抗凋亡基因Bcl-2mRNA表达最少，为揭示衰老细胞凋亡与基因表达调控之间的关系提供线索。