The effect of low-molecular-weight mimetics of NGF and BDNF (GK-2 and GSB-214 in a dose 0.5 mg/kg, respectively) on malondialdehyde content and activity of an antioxidant defense enzyme glutathione peroxidase was studied in experiments on C57BL/6 mice with streptozotocin-induced diabetes. An increase in the malondialdehyde content indicating enhanced formation of peroxidation products and a decrease of glutathione peroxidase activity in the blood plasma of untreated diabetic animals were revealed. Both studied mimetics were shown to attenuate the severity of these disorders. Since the ability of these compounds to activate the PI3K/Akt signaling pathway was previously demonstrated in vitro on HT-22 cell culture, we studied the effect of LY294002, an inhibitor of this pathway, on the above parameters. It was found that LY294002 attenuates the normalizing effect of GK-2 and GSB-214 only in relation to glutathione peroxidase activity, but not malondialdehyde level.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 174, No. 8, pp. 244-248, August, 2022
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Yagubova, S.S., Zolotov, N.N., Ostrovskaya, R.U. et al. Analysis of the Role of PI3K/Akt Pathway in the Realization of the Normalizing Effect of Low-Molecular-Weight Mimetics of NGF and BDNF on Activity of Prooxidant and Antioxidant Systems in C57BL/6 Mice with Modeled Diabetes. Bull Exp Biol Med 174, 273–276 (2022). https://doi.org/10.1007/s10517-023-05688-3
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DOI: https://doi.org/10.1007/s10517-023-05688-3