Abstract
The neuroprotective effect of a novel conjugate of hydroxybenzoic acid with glycine (C40) was investigated in a model of ischemic stroke in rats with chronic cerebral circulation insufficiency (CCCI). The study was conducted in two stages: first, CCCI was modeled by stenosing the common carotid arteries by 50 %, followed by a 60-minute middle cerebral artery occlusion (stroke) after 40 days. Compound C40 and the reference drug citicoline were administered for 10 days before stroke and for 3 days after. Further, neurological deficit (the Garcia and Combs D’Alecy scales), sensorimotor functions (Open Field test, Adhesive Removal test, and Rotarod test), cognitive impairments (Novel Object Recognition and Morris Water Maze tests), cerebral blood flow level, and endothelial function were evaluated. Animals receiving the test substances demonstrated a statistically significant reduction in neurological deficit, less pronounced motor coordination and sensorimotor function impairments, as well as fewer short-term and long-term memory deficits compared to the negative control group. The observed decrease in neurological deficit in the experimental groups was accompanied by improved endothelial function and increased cerebral blood flow. The neuroprotective effect of the novel hydroxybenzoic acid derivative with glycine (C40) was comparable to that of reference drug citicoline.
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