Aqueous Root Bark Extract of Daniellia oliveri (Hutch. & Dalz.) (Fabaceae) Protects Neurons against Diazepam-Induced Amnesia in Mice

Figure 8

Effects of D. oliveri extract on hippocampi sections of mice brains. Coronal sections: hematoxylin and eosin-40x magnification; CA = cornus ammonis, GD = dentate gyrus, and HGD: dentate gyrus hilus. Yellow arrow: stratum oriens; green arrow: layer of pyramidal cells (contains the cell bodies of the pyramidal cells of the cornus ammonis. The density of the blue color corresponds to the density of the cell bodies of pyramidal neurons); blue arrow: stratum lacunosum-moleculare (contains pyramidal cell segments); black arrow: molecular layer of the dentate gyrus. ML: molecular layer of dentate gyrus. (a) Normal (DW 10 ml/kg). (b) DZP 2.5 mg/kg + DW. (c) DZP + PIR 150 mg/kg. (d) DZP + DO 100 mg/kg. (e) DZP + DO 200 mg/kg. (f) DZP + DO 300 mg/kg.

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