Quantification of SV2A and SV2B by western blots in laser micro-dissection hippocampal regions. Fluorescent western blot analysis of SV2A and SV2B proteins were carried out on the hilus of dentatus gyrus (HDG) and the CA1 region laser micro-dissected from the hippocampus of mice at P5, P7 and P10. Three animals per age were used this quantification. This experiment was repeated once with three new animals per age. The quantification was performed using software Image Master 1D Elite. Data are presented as mean +/− SD and were analyzed by a ANOVA following a Student’s t test. * p < 0.05; **p < 0.01; ns: not significant.