Behavioral and neuroreceptor effects of the racetam derivative GIZh-290 in mouse experimental attention deficit model

   
Kovalev G.I.1 , Sukhorukova N.A.1, Vasileva E.V.1, Kondrakhin E.A.1, Salimov R.M.1, Narkevich V.B.1, Kudrin V.S.1

1. Zakusov Research Institute of Pharmacology, Moscow, Russia
Section: Experimental Study
DOI: 10.18097/PBMC20226805367      PubMed Id: 36373883
Year: 2022  Volume: 68  Issue: 5  Pages: 367-374
Behavioral and neurochemical effects of the new racetam derivative GIZh-290 were studied in a mouse attention deficit model (the ED-Low animals subpopulation selected during preliminary behavioral typing in the “closed enriched cross maze” test). Subchronic administration of GIZh-290 (1 mg/kg, 3 mg/kg and 5 mg/kg, intraperitoneally, for 6 days), increased the initially low level of attention in ED-Low animals; the highest selectivity was observed at a dose of 3 mg/kg. Radioligand analysis showed that at this dose, the drug changed density (Bmax) of D2 and GABAB receptors as markers in the pre-frontal cortex of the ED-Low subpopulation to Bmax values observed in the ED-High subpopulation. In the prefrontal cortex of the ED-Low rodents treated with GIZh-290 in dose of 3 mg/kg, there was a normalization of tissue concentrations of both dopamine itself (DA) and its intra- and extracellular metabolites (DOPA/DA and HVA/DA). The obtained results indicate the effectiveness of the studied drug for pharmacotherapy of attention deficit in experimental modeling and impact on potential molecular targets identified in the study.
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Keywords: attention deficit, GIZh-290, “closed enriched cross maze”, D2-receptor, GABAB-receptor, HPLC-ED
Citation:

Kovalev, G. I., Sukhorukova, N. A., Vasileva, E. V., Kondrakhin, E. A., Salimov, R. M., Narkevich, V. B., Kudrin, V. S. (2022). Behavioral and neuroreceptor effects of the racetam derivative GIZh-290 in mouse experimental attention deficit model. Biomeditsinskaya Khimiya, 68(5), 367-374.
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