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Updated: Jun 23, 2025
Assessing Neuroprotective Effects of Glycyrrhizae Radix et Rhizoma Extract Using a Transient Middle Cerebral Artery Occlusion Mouse Model
Published on: December 9, 2018
Accelerated Method for Determining Ischemic Brain Damage in Rats and Assessment the Neuroprotective Effect of a
1Institute of General and Experimental Biology, Siberian Branch of the Russian Academy of Sciences, Ulan-Ude, Republic of Buryatia, Russia. s-gulyaev@inbox.ru.
Abstract:
The severity of ischemic injury was evaluated by densitometry of brain samples stained with 2,3,5-triphenyltetrazolium chloride (TTC) on a rat model of cerebral ischemia/reperfusion (common carotid artery occlusion) and the neuroprotective activity of an extract of Astragalus membranaceus, Scutellaria baicalensis, and Phlojodicarpus sibiricus was assessed. Occlusion of the common carotid arteries led to a weakening of TTC staining of the brain tissue: densitometric indicators of the staining intensity for the cortex and striatum were lower than the corresponding indicators of sham-operated rats by 18.3 and 10.4%. The mean intensity of staining of brain samples did not differ in rats treated with the extract and sham-operated animals, which attested to its neuroprotective effect. The applied method is convenient for evaluation of the severity of ischemic brain damage at the early stages and screening potential neuroprotective agents.
