Table 3 Microglia density in the posterior hippocampal tissue. All values are reported as mean ± standard error mean, 95% confidence interval [lower 95% CI, upper 95% CI]

Sham

267.1 cells/mm² ± 40.93, 95% CI [177.9, 356.2]

168.5 cells/mm² ± 24.37, 95% CI [115.4, 221.6]

393.6 cells/mm² ± 64.13, 95% CI [253.9, 533.3]

3 DPI

345.1 cells/mm² ± 38.46, 95% CI [222.7, 467.5]

205.1 cells/mm² ± 37.88, 95% CI [84.57, 325.6]

497.6 cells/mm² ± 80.47, 95% CI [241.5, 753.7]

7 DPI

267 cells/mm² ± 31.04, 95% CI [168.2, 365.8]

164.0 cells/mm² ± 38.35, 95% CI [41.95, 286.0]

282.9 cells/mm² ± 42.38, 95% CI [165.3, 400.6]

30 DPI

417.2 cells/mm² ± 86.95, 95% CI [43.07, 791.3]

384.6 cells/mm² ± 39.04, 95% CI [216.6, 552.6]

562.8 cells/mm² ± 146.3, 95% CI [− 66.69, 1192]

1 YPI

465.2 cells/mm² ± 19.15, 95% CI [382.8, 547.6]

384.7 cells/mm² ± 142.2, 95% CI [− 227.3, 996.7]

692.3 cells/mm² ± 152.3, 95% CI [37.16, 1347]