alexa Antioxidant systems in polymorphonuclear leucocytes of Type 2 diabetes mellitus.
Medicine

Medicine

Emergency Medicine: Open Access

Author(s): Muchov J, Liptkov A, Orszghov Z, Garaiov I, Tison P,

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Abstract AIMS: To examine the effect of Type 2 diabetes mellitus (DM) on enzymes of importance for oxygen-dependent killing of microorganisms by leucocytes. METHODS: Twenty patients with Type 2 DM and 20 nondiabetic controls provided blood samples for analysis. RESULTS: The superoxide dismutase (SOD) activity was lower by 41\% in polymorphonuclear leucocytes (PMNL) from patients with Type 2 DM than in controls (3.42+/-0.32 U/mg of protein vs. 5.79+/-0.71 U/mg of protein, P<0.005). Glutathione peroxidase (GSHPx) and glutathione reductase (GR) activities of Type 2 DM patients were 73.04\% and 81.12\% of control values (0.84+/-0.07 nkat/mg of protein vs. 1.15+/-0.10 nkat/mg of protein, P<0.003, and 2.02+/-0.12 nkat/mg of protein vs. 2.49+/-0.16 nkat/mg of protein, P < 0.023, respectively). The catalase activity showed no significant difference. A significant increase (141.37\% of control) in the concentration of thiobarbituric acid reactive products was observed (9.91+/-0.78 miromol/l vs. 7.01+/-0.47 micromol/l, P<0.003). A positive correlation between thiobarbituric acid reactive products and glucose, glycated haemoglobin and fructosamine in the serum of diabetic patients was observed. CONCLUSION: These findings may explain some of the mechanisms underlying the increased susceptibility to certain infection in patients with Type 2 DM.
This article was published in Diabet Med and referenced in Emergency Medicine: Open Access

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