Abstract
We studied the morphological changes and expression of the astroglial and microglial markers in the sensorimotor cortex and hippocampus of rats that were subjected to chronic stress. Chronic neurotization was associated with the appearance of a large number of damaged neurons in layer V of the sensorimotor cortex and the pyramidal layer of the hippocampus. These changes were considerably expressed in the CA3 field. A neurosis-like state in rats was accompanied by an increased expression of microglial markers in the hippocampus and this effect was evident even 1 month after the end of stress. The expression of the astroglial marker GFAP decreased in the CA3 hippocampal field. Treatment of animals with the pantothenic acid derivative panthenol stabilized the glial response to chronic stress; however, its effects were not long-lasting and did not prevent activation of microglia during the period after stress.
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