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  Indian J Med Microbiol
 

Figure 2: Photomicrographs of (toluidine blue ×1000) toluidine-stained sections of the hippocampus: (a) A photomicrograph of an adult rat aged 8 months showing dense Nissl granule content inside the cytoplasm of the pyramidal cells (black arrows). (b) A photomicrograph of a rat aged 22 months showing scanty Nissl granule content in most of the pyramidal cells, with faint blue color of the cytoplasm. (c) A photomicrograph of a rat aged 26 months showing more faint blue color and scanty Nissl granules density in the pyramidal cells.

Figure 2: Photomicrographs of (toluidine blue ×1000) toluidine-stained sections of the hippocampus: (a) A photomicrograph of an adult rat aged 8 months showing dense Nissl granule content inside the cytoplasm of the pyramidal cells (black arrows). (b) A photomicrograph of a rat aged 22 months showing scanty Nissl granule content in most of the pyramidal cells, with faint blue color of the cytoplasm. (c) A photomicrograph of a rat aged 26 months showing more faint blue color and scanty Nissl granules density in the pyramidal cells.