Postnatal differentiation of the granule cells in the hippocampus and cerebellum: A histochemical study

Summary Postnatal differentiation of the granule cells in the fascia dentata and the granule cell layer of cerebellum is described in terms of enzymatic activity with NADPH-R, NADH-R, SDH and Ac. Ph. In relation to this the neuropil, where the granule cells have their dendritic ramifications, has been studied. The granule cells in both the regions, after a progression of enzymatic changes, achieve an asymptotic level of enzyme activity around 16 days postnatally.Parts of this paper were presented at the XI. Symposion, Gesellschaft für Histochemie, München 1966.Technical assistance of Miss. W. Komp and Miss. E. Hartwieg is gratefully acknowledged.