Objectives. To study the cytoarchitectonic structure of the hippocampus in men in the left and right hemispheres. Materials and methods. Continuous series of total frontal sections of the cerebral hemispheres were studied in the brains of four men aged 19–30 years. Specimens were stained with cresyl violet by the Nissl method and analyzed using image analysis software. Results. The characteristics of the field profile of pyramidal neurons in field CA1 were determined, along with the distribution density of neurons and glial cells in the left and right hemispheres of male brains. The dimensions of the field profile of pyramidal neurons in hippocampal field CA1 in the right hemisphere were larger and their distribution density was lower as compared with the left hemisphere. Field CA1 in the right hemisphere of men's brains had greater density of total glial cells and a higher ratio of satellite glial cells to the total number of glial cells as compared with the left hemisphere. Conclusions. The gender-related characteristics of the structural organization of the hippocampus in men evidently correlates with the properties of memory in men.
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