Figure 9.

Comparison of axonal labeling across regions of the hippocampus. The same set of electron micrographs used for the analyses shown in Figure 8 was used here to determine the proportion of all axons encountered that were immunolabeled. The graphs show mean ± SEM values. To test for differences among the CA1, CA3, and DG groups, ANOVA was performed. Anti-cGLT1a antibody immunoreactivity in axons was heterogeneous, and the difference in axon labeling between the CA1 and CA3 fields was significant (p = 0.016). The difference in axon labeling across regions using the anti-nGLT1 antibody was not statistically significant. The N values for the anatomical regions and antibodies were the same as indicated in the legend to Figure 8.