Fig. 3. Dendritic spine density in the hippocampal CA1 region. (A) Sections derived from the NS, AD, or AD+HBO group on postoperative day 21 were stained with Golgi-Cox. Magnification, 1000×. (B) The number of dendritic spines per 10 µm was calculated. Ten neurons from each animal were included in the calculation, and two animals from each group were used for analysis. ^*p<0.05 compared with NS, ^†p<0.05 compared with AD. NS, normal saline; AD, Alzheimer’s disease; HBO, hyperbaric oxygen.