The number of microglia cells and astrocytes in layer V of the cerebral cortex was estimated on day 7 after damage caused by a unilateral focal traumatic brain injury of the left hemisphere sensorimotor cortex. Quantitative assessment was performed by counting immunocytochemically stained microglia cells (Iba1 marker) and activated astrocytes (GFAP) at different distances from the lesion site. Activation of microglial and astroglial cells was observed not only in the marginal zone of the lesion of the left hemisphere, but also in the intact hemisphere. The data obtained indicate the dissemination of inflammation in focal traumatic brain injury.
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