Table 1.

Mean [Ca2+]i increments induced by HFS of hippocampal dentate granule cells

Cell groupLocationnNo. of cellsΔF/F0
NT controlSomata18 (6)18 (6)0.299 ± 0.015 (0.741 ± 0.021)
Dendritic spines34 (11)14 (4)0.357 ± 0.022 (0.577 ± 0.046)
Dendritic shafts28 (9)14 (5)0.368 ± 0.026 (0.603 ± 0.046)
MFBs64121.302 ± 0.050
shKIF21ASomata19 (5)19 (5)0.300 ± 0.018 (0.724 ± 0.043)
Dendritic spines45 (11)13 (5)0.364 ± 0.029 (0.672 ± 0.047)
Dendritic shafts35 (11)13 (5)0.306 ± 0.027 (0.673 ± 0.062)
MFBs46152.161 ± 0.079**
shNCKX2Somata770.268 ± 0.022
Dendritic spines1540.329 ± 0.033
Dendritic shafts1040.358 ± 0.037
MFBs2652.171 ± 0.148**
  • [Ca2+]i increments presented as ΔF/F0 of OGB-5N. Ca2+ transients were induced by HFS at 33 or 100 Hz (numbers in parentheses). ΔF/F0 values of a Ca2+ transient were read at the end of HFS. NT, Nontargeting. The statistical values are presented as mean ± SEM.

  • **Statistical significance compared with control value (p < 0.01).