Effect of the complex of natural terpenes and vitamin E Renotinex® on free radical processes in patients with urolithiasis

Abstract

BACKGROUND: One of the leading links in the pathogenesis of urolithiasis is oxidative stress, which occurs as a result of the intensification of free radical oxidation with insufficient activity of the antioxidant defense system of the body.

AIM: The aim of the study was to study the effect of a complex of natural terpenes and vitamin E Renotineх® on the state of oxidative stress in patients with urolithiasis in the postoperative period after percutaneous nephrolithotripsy.

MATERIALS AND METHODS: The study included 42 patients. Of the 35 people who underwent percutaneous nephrolithotripsy, 2 groups were formed. Patients of the main group (n = 20), in contrast to the control group (n = 15), received Renotinex® (Polaris LLC, Russia) before and after surgery, 2 capsules (1 capsule 300 mg) twice a day. To determine the main indicators of the activity of free-radical processes in the body, all patients underwent a blood test on the 3^rd day after surgery. The total activity of the pro- and antioxidant systems in blood plasma was determined by the method of induced chemiluminescence. The activity of lipid peroxidation was assessed by determining the concentration of active products of thiobarbituric acid — secondary products of lipid peroxidation in blood erythrocytes. The activity of antioxidant enzymes was studied by spectrophotometric method. To determine the ability of blood plasma to crystallize in some of the same patients with urolithiasis while taking Renotinex®, the method of wedge dehydration was used. For a comparative analysis of the crystal structure of dried blood plasma samples (facies), 7 healthy volunteers were included in the study, which made up the third group (comparison group).

RESULTS: The results of the study reliably demonstrate that the composition of the complex of natural terpenes and vitamin E Renotinex® has a positive effect on free-radical processes in patients with urolithiasis, biochemical parameters of blood plasma (indicators of induced chemiluminescence, catalase activity, malondialdehyde level), as well as on crystallization processes blood plasma, which is confirmed by the method of wedge dehydration of blood plasma. Any change in the body caused by excessive activity of free-radical oxidation processes is reflected in the composition of the blood, and specifically in the indicators of the “mechanical” characteristics of blood plasma (viscosity, structure, surface tension), which determine the shape of the resulting structures of the drying drop of biological fluid.

CONCLUSIONS: The complex of natural terpenes and vitamin E Renotinex® has a positive effect on free-radical processes, biochemical parameters of blood plasma, as well as on the systemic structural organization of blood plasma in patients operated on for urolithiasis. The inclusion of the combined product Renotinex® in the treatment regimen for patients with urolithiasis is pathogenetically justified.

Keywords

urolithiasis / Renotinex / metaphylaxis / oxidative stress / wedge-shaped dehydration

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