Thiol-disulfide metabolism is essential for normal function of the organism. Thus the interest of the scientists in this area of research continues to grow. Material and methods: Copper coordination compounds (CCC), derivatives of thiosemicarbaside (CMD-4, CMJ-33, CMT-67), action on thiol-disulfide metabolism in the healthy Ratta albicans kidneys were studied. The animals were divided in 6 groups of 7 rats each. The control group included healthy rats which were injected i/m physiological

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... on 3 times a week, for 30 days. The rats from groups 2-6 have got 3 times a week, for 30 days, i/m injections of CCC. The activity of following thiol-disulfide metabolism enzymes in the renal supernatant has been measured: glutathion-reductase (GR), glutathion-peroxidase (GPO), glutathion-S-transferase (G-S-T), γ-glutamyl transpeptidase (γ-GTP), glutaredoxin (Grx), as well the amount of the protein SH-groups and of the total glutathione, reduced glutathione (GSH) and oxidized glutathione (GSSG) in renal tissue. Results: The compounds exhibit different actions: CMT-67 in the dose of 0.1 µM/kg influenced the activity of the glutathione metabolism enzymes – activated γ-glutamyl transpeptidase (γ-GTP) and glutaredoxine (Grx) and inhibited glutathione reductase (GR), while CMD-4 in doses of 0.1 µM/kg and 1.0 µM/kg and CMJ-33 in the dose of 1.0 µM/kg significantly diminished the reduced glutathione (GSH) level and increased the amount of the oxidised one (GSSG). Conclusions: Selective action of the copper coordination copounds established by this study opens new possibilities of their usage in the therapy of kidney diseases.