Accumulation of oxidized proteins (evaluated by the levels of carbonyl and SH groups) in tissues of 2-24-month-old rats (spleen > myocardium > testicles > liver > skeletal muscles) has been demonstrated. Exogenous delta sleep-inducing peptide injected subcutaneously to rats of different age in a dose of 100 μg/kg by monthly 5-day courses protected proteins of the studied tissues from oxidation; its effect was tissue-specific. Delta sleep-inducing peptide exhibited a hypoglycemic effect: it prevented nonenzymatic glycosylation of hemoglobin and reduced the level of defective protein molecules during aging.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 153, No. 3, pp. 350-354, March, 2012
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Bondarenko, T.I., Sorokina, I.A., Mayboroda, E.A. et al. Effect of Delta Sleep-Inducing Peptide on Oxidative Modification of Proteins in Rat Tissues and Blood during Physiological Aging. Bull Exp Biol Med 153, 371–374 (2012). https://doi.org/10.1007/s10517-012-1719-3
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DOI: https://doi.org/10.1007/s10517-012-1719-3