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Quantification of cell chemotactic index and migration speed. (A) Chemotactic indices showed broad population distributions at 4 hr and became narrower at 17 hr. BDNF treatment significantly increased chemotactic indices, while AMD 3100 treatment significantly attenuated NSC chemotaxis. (B) Cell migration speed was similar across all observation times and BDNF treatments, but decreased upon treatment with AMD 3100. * p<0.05, ***p<0.001
