CHANGES IN THE INTENSITY OF FREE RADICAL LIPID OXIDATION IN PATIENTS WITH BRONCHIAL ASTHMA WITH CONCOMITANT CHRONIC NON-CALCULOUS CHOLECYSTITIS

INTRODUCTION: The incidence rate of chronic non-calculous cholecystitis (CNCC) in the population is 35-38%, and in elderly patients it reaches to 65-72%. Free radical lipid oxidation (FRLO) plays a significant role in the development and progression of bronchial asthma (BA). The initiators of FRLO excessive activation can be the following: hypoxia, inflammation, immune damage to membranes and the imperfection of the antioxidant defense. OBJECTIVE: To compare the intensity of FRLO processes in patients with BA and comorbid CNCC, and patients with BA and CNCC each without any comorbidities.. METHODS: The study was performed on 92 patients: 30 patients with BA (group 1), 30 patients with BA and comorbid CNCC (group 2), and 32 patients with CNCC (group 3). The control group consisted of 30 practically healthy persons (PHP). The number of compounds with isolated double bonds (IDB), diene conjugates (DC), ketodienes and conjugated trienes (K/CT), and malonic aldehyde (MA) in erythrocytes and blood plasma were determined. RESULTS: In groups 1, 2, and 3, the content of IDB was higher in comparison with PHP by 1.4, 1.7, and 1.6 times respectively. In group 1, plasma K/CT was 12.0% higher, and DC was 1.5 times higher compared to the PHP group. In group 2, DC and K/CT were higher by 1.7 times and by 21.7% as compared with PHP. In group 1, plasma MA and red blood cell MA were higher by 18.0% and 29.8%. The highest content of plasma MA and red blood cell MA in group 2 of patients was 69.8% and 54.3% respectively. In group 3, plasma MA was 34.7% higher, and red blood cell MA was 44.4% higher compared to the normal values. CONCLUSIONS: Intensification of FRLO processes leads to disruption of microcirculation and metabolic processes in the bronchial epithelium, supports local inflammatory process in the gallbladder and bronchi and promotes inhibition of tissue respiration with increased tissue hypoxia, which, in turn, leads to the progression of broncho-obstruction.

GONADOPROTECTIVE PROPERTIES OF ANTIOXIDANT COMPLEX IN CONDITIONS CAUSED BY TOXIC EFFECTS OF HERBICIDES

Nowadays, when the nation’s temporary economic difficulties have led to a decline in the agriculture share of the overall economy, the problem of controlling weeds of agricultural land is especially urgent. Undoubtedly, in our country, with the strengthening of the economy, the use of plant protection products is growing, requiring even closer attention to the problem of the environmental impact of herbicides and the rehabilitation of soils contaminated with residues of poisonous chemicals. The general mechanism of the action affecting herbicides of different groups is the violation of redox processes, and, in particular, the increase in free radical lipid peroxidation, first of all, in gonadal cell membranes that can eventually lead to the destruction throughout the reproductive period. Moreover, they produce gonadotoxic effects leading to a decrease in steroidogenesis, and as a consequence, to impaired spermatogenesis. The aim of the study was to investigate the gonadoprotective properties of the antioxidant complex, its effect on the parameters of lipid peroxidation, morphological and functional changes in the testes of rats exposed to the toxic effect of the clopyralid herbicide. The introduction of this complex under the conditions mentioned above contributed not only to a significant decrease in free radical lipid perozidation in the blood and tissues of the testes, but also to normalization of the state of spermatogenic epithelium, quantitative sperm indicators, normalization of sperm motility. It has been proven the complex of antioxidants not only affects the level of spermatogenic epithelium, but also improves the quality of sperm, contributing to the restoration of sperm motility. The studies of morphological changes in the testes and the functional maturation of the sperm have shown that the most significant changes were registered during the correction with the antioxidant complex, emphasizing its more pronounced gonadoprotective effect. The results obtained indicate the feasibility of using this antioxidant complex as gonadoprotectant in cases of chronic intoxication with herbicides.

Controversial Issues of Clinical Immunology. Modern Concepts about the Pathogenesis of Infections

It is postulated that a suppressed or stimulated state of immune reactivity plays an important role in the induction of an infection process, which triggers the activation of microbiota pathogens. Infection-driven destruction of cells of a macroorganism promotes the release of endogenous low molecular weight nucleic acids, mostly RNA, which, within the first hours/days, are responsible for the stimulation of replication and toxin formation by microflora with subsequent disease exacerbation, and as a result, in a few days, cause an increase in antigenicity, immunogenicity, antibiotic susceptibility of pathogens, and activation of nonspecific and specific resistance of the body, with the resulting immune activation. Concurrently with these processes, the intensification of free-radical lipid and protein oxidation is observed, with the formation of immunosuppressive compounds which are neutralized by enzymatic and nonenzymatic factors of the antioxidant system. Thus, in infection processes homeostasis is achieved by means of a sequential cascade of microbial, immune, and metabolic mechanisms which induce, stimulate, and inhibit the responsiveness of the body.

THE ANTIOXIDANT IN THE COMPOSITIONOF ANTIPARASITIC PASTE FOR HORSES

The long-running parasitic process adversely affects the viability of the antioxidant defense system, which is reflected in an increase in the onset of the maximum signal reduction and a decrease in the AOA. For the treatment of equine helminth infections, drugs are needed that combine high anthelmintic efficacy with a simultaneous immunostimulating effect. The use of antioxidants in the composition of antiparasitic drugs increases the effectiveness of deworming. The use of the antiparasitic drug alezan containing ivermectin, praziquantel and antioxidant santohin in helminthiases of horses once at the rate of 1 g of paste per 100 kg of animal weight in a therapeutic dose ensured the complete elimination of worms from the host's body by the 10th day of research. The drug is used for therapeutic and prophylactic purposes. Significant changes in the content of total protein, alpha- and gamma-globulins, AlAt and AsAt by the 28th day of research indicate that there is no negative effect of deworming. Information was obtained on the positive effect of the antiparasitic paste with antioxidant on the light sum (S) and maximum flare (Imax), which is characterized by a decrease in the level of free radical lipid oxidation with a decrease in the light sum of radicals by 14.6% and an increase in the antioxidant activity of horse serum by 26.5% on the 7th day. By the 14th day, the radical sum of radicals decreased by 16.9%, the maximum luminescence intensity – by 34.3%, and on the 28th day the light sum index was 26.73, which corresponded to the standard data. With chronic parasitic invasion, a low AOA was observed.

Membrane-modifying properties of hydrated fullerene C60 in combination with Spirulina platensis cell culture

The study is devoted to the development of new promising nanocomponent compositions with membrane-modulating properties. The effect of a solution of hydrated fullerene C60 and a cell suspension of blue-green algae Spirulina platensis on the activity of free radical lipid peroxidation and oxidative phosphorylation in mitochondria of rat liver was studied. Fullerene C60 and suspension of Spirulina platensis cells were administered to Wistar rats for 30 days, once a day, intragastrically, both jointly and singly. The rate of oxygen consumption of phosphorylating and non-phosphorylating mitochondria (in V3 and V4 states), the rate and efficiency of ADP phosphorylation (ADP/Δt and ADP/O), respiratory control coefficient (RC) were changed in rat liver mitochondria. In the same samples, the concentration of diene, triene, oxodiene, and tetraene fatty acids was measured. The results of our studies have shown that the solution of hydrated fullerene C60 serves as a structural modifier of the lipid bilayer of cell membranes, the effect of which can be corrected by using an antioxidant component such as a suspension of Spirulina platensis cells.

CHARACTERISTICS OF FREE RADICAL LIPID PEROXIDATION AND ITS CONNECTION WITH IRON EXCHANGE IN EXPERIMENTAL HEPATITIS THERAPY

The purpose of the work is to study the processes of free radical lipid peroxidation, antioxidant system activity and their connection with the iron metabolism in white rats with experimental hepatitis, and after the use of hepatoprotectors. Materials and Methods. Studies were conducted on white Wistar rats: body weight – 180–200 g, age – 3 months. “Berlition” and “Legalon M” were administered intramuscularly, 0.2 ml per animal once a day (30 days). The authors registered the content of malonic dialdehyde (MDA), diene conjugates, catalase activity, serum iron level, total and unsaturated iron binding capacity. Results. In experimental animals, the level of diene conjugates increased 1.8 times if compared with healthy ones. After the administration of “Legalon M” and “Berlition”, the concentration of diene conjugates decreased by 58.6 % (by half) compared with the experimental animals. It was established that the malondialdehyde content significantly increased in all tissues. After the administration of “Legalon M” and “Berlition”, the malondialdehyde content decreased in the liver, lungs and muscle tissues. In the tissues of the intestine and in the blood serum, MDA level resolved to that of healthy animals. In experimental animals, catalase activity increased significantly if compared with healthy ones. After “Legalon M” and “Berlition” administration there was a decrease in enzyme activity in all body tissues. In animals with experimental hepatitis, there was a failure of iron metabolism in the body. The authors observed activation of iron metabolism in the body after drug administration to rats with experimental hepatitis. Conclusions. “Ligalon M” and “Berlition” have an antioxidant effect and stimulate iron metabolism. Keywords: hepatitis, antioxidants, free radicals, malonic dialdehyde, catalase, diene conjugates, iron metabolism, transferrin, lipids.

FEATURES OF CLINICAL MANIFESTATIONS, FREE RADICAL, COAGULATION AND AGGREGATION PROPERTIES OF BLOOD IN PATIENTS WITH CRANIOCEREBRAL TRAUMA

Introduction: In recent years in Ukraine, as in the entire world, there has been an increase in cases of domestic injuries with a raise in the number of patients with craniocerebral trauma and its consequences. The aim of our research was to study clinical symptoms, the state of free radical oxidation, aggregate and hemocoagulative properties of blood in patients with mild craniocerebral trauma. Materials and methods: We conducted comprehensive clinical and laboratory examination of 34 patients with mild craniocerebral trauma and 20 apparently healthy patients (the control group). The diagnosis was made under ICD-10. The verification of the diagnosis was based on data from clinical examination, neurological status of neuroimaging (computer tomography and magnetic resonance imaging). The study group included 24 men and 10 women aged from 19 to 40. In addition, 20 apparently healthy individuals of the same age were examined, who comprised the control group (14 men and 6 women). In the blood parameters of all patients, we examined free radical oxidation, hemostasis and aggregation properties of platelets. Results: The conducted study revealed clinical disturbances, changes in the parameters of free radical lipid oxidation, coagulation and microcirculatory hemostasis. Conclusions: All patients with mild craniocerebral trauma, develop disturbances in the form of symptoms of microorganic lesion of the central nervous system: convergence weakness in 100% of patients, Mann’s symptom (76.4%), disruption of the function of the cranial nerves (58.8%), signs of pyramidal insufficiency (68.4%), vestibular disorders (94.1%), autonomic vascular dysfunction (100%). Mild craniocerebral trauma is accompanied by the activation of free radical lipid oxidation processes, decreased activity of antioxidant enzymes, hypercoagulation, and increased aggregation properties of platelets.