Publications by authors named "Lazarenko L"

Aim: To evaluate the influence of dispersed fibrous carbon sorbent (DFCS) on malignant fungating wounds (MFWs) in Guerin's carcinoma-bearing rats with an assessment of wound bacterial microflora.

Materials And Methods: The study was performed on female Wistar rats inoculated subcutaneously with Guerin T8 carcinoma into the upper interscapular region. On day 20, the tumors were infected by injecting the suspension of S.

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Background: Microbiome modulation is a pillar intervention to treat metabolic syndrome, prestages, and cascade of related pathologies such as atherosclerosis, among others. and probiotic strains demonstrate efficacy to reduce obesity, dyslipidemia, and improve metabolic health. Novel prebiotic substances composed with known probiotics may strongly synergize health benefits to the host.

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Background: Probiotics have tremendous potential to develop healthy diets, treatment, and prevention. Investigation of in vitro cultural properties of health-promoting microorganisms like lactic acid bacteria (LAB) and bifidobacteria is crucial to select probiotic strains for treatments based on gut microbiota modulation to justify individualized and personalized approach for nutrition and prevention of variety of diseases. The was to study the biological properties of LAB and bifidobacteria probiotic strains, namely adhesive properties; resistance to antibiotics; and biological fluids (gastric juice, bile, pancreatic enzymes), and to overview the literature in the field.

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Background: Microbiome-modulating interventions are promising for treatment and prevention of metabolic syndrome. The number of probiotic strains demonstrated ability to decrease cholesterol level in vivo, however, it was poorly confirmed in a clinical setting. The aim was to study the effects of IMV B-7279, IMV B-7280, VKL and VKB separately and in various compositions on the level of serum cholesterol, gut microbiota contents and liver morphology on a high-calorie-induced obesity model in BALB/c mice.

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The aim of this study was to investigate the effect of probiotic strains of Lactobacillus casei IMV B-7280, Bifidobacterium animalis VKL, B. animalis VKB on the pro- and anti-inflammatory cytokines production in Wistar male rats with monosodium glutamate (MSG)-induced obesity. It was established that neonatal administration of MSG to rats leads to increasing levels of the interleukin (IL)-1β and IL-12, and to decreasing ofthe IL-4, IL-10 and tumor growthfactor (TGF)-β levels in the bloodserum.

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There is great interest in the interaction between diet and immune system and concomitantly in the potential of probiotic bacteria, especially given recent advances in understanding of gut microbiota effects on health in the context of microbiome research. Following our recent study on bacterial wall elasticity as a predictive measure of phagocytic cellular reactions and related outcomes, a question was raised regarding the scope of the application of these findings in various medical conditions in the context of predictive, preventive, and personalized medicine (PPPM). This summarizing review of the data describes the contributions, both observed and potential, of probiotics to the gut-brain axis and various medical conditions, including immune and atopic states, metabolic and inflammatory diseases-including liver disease and diabetes mellitus-cancer, and more.

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Background: Probiotics have great potential to contribute to development of healthy dietary regimes, preventive care, and an integrated approach to immunity-related disease management. The bacterial wall is a dynamic entity, depending on many components and playing an essential role in modulating immune response. The impact of cell wall elasticity on the beneficial effects of probiotic strains has not been sufficiently studied.

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It was studied the effect of probiotic strains of Bifidobacterium animalis VKL, Bifidobacterium animalis VKB and Lactobacillus casei IMVB-7280, and their mixtures on erosive and ulcerative lesions of the gastric mucosa (GM) of rats. GM was induced by water-immersion restraint stress. It was found that investigated probiotics did not have gastroprotective properties under a single and seven-day prophylactic administration.

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The effect of a mixture of probiotic strains (2:1:1 Lactobacillus casei IMVB-7280, Bifidobacterium animalis VKL, Bifidobacterium animalis VKB) on the development of experimental obesity in rats induced by neonatal administration of monosodium glutamate has been studied. It was shown that in rats of 4 months age, the injection of monosodium glutamate (4 mg/g) at 2, 4, 6, 8, 10 days after birth elicited abdominal obesity and metabolic syndrome. An intermittent administration of a probiotic mixture to rats treated with monosodium prevented the development of obesity.

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Long-term studies of spread of rhabdoviruses which indicated their harmfulness in different plant species under conditions of environmental factors were first discussed. Their harmfulness to different plant species under environmental conditions was shown. A comparative description of rhabdoviruses with similar pathogens of the mushrooms is carried out.

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Antistaphylococcal action of Lactobacillus delbrueckii subsp. bulgaricus IMV B-7281, L. acidophilus LMV B-7279 and Bifidobacterium animalis VKB as well as interleukin-2 (IL-2) has been determined on the model of experimental staphylococcal infection in mice.

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Introduction: Obesity becomes endemic today. Monosodium glutamate was proved as obesogenic food additive. Probiotics are discussed to impact on obesity development.

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Introduction: Human papillomavirus (HPV) induce many cancer conditions and cause cervical cancer, second in frequency of malignant disease in women.The aim was to develop biomarker panel for HPV-induced cervical precancerous diseases in patients infected with herpes simplex virus (HSV).

Material And Methods: The study involved 71 women with cervical precancerous diseases (mean age 26 ± 5 years) revealed by colposcopic, cytomorphological, and ultrasound signs which were assessed according to the following: first group, 44 patients infected with HPV; second group, 27 HPV-negative patients; and third group, 30 healthy patients (controls).

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Introduction: Nanoscale gold particles (AuNPs) have wide perspectives for biomedical applications because of their unique biological properties, as antioxidative activity and potentials for drug delivery.

Aims And Objectives: The aim was to test effects of AuNPs using suggested heart failure rat model to compare with proved medication Simdax, to test gold nanoparticle for drug delivery, and to test sonoporation effect to increase nanoparticles delivery into myocardial cells.

Material And Methods: We performed biosafety and biocompatibility tests for AuNPs and conjugate with Simdax.

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The influence of probiotic strains of Lactobacillus casei IMV B-7280, Lactobacillus acidophilus IMV B-7279, Bifidobacterium animalis VKL, Lactobacillus delbrueckii subsp. bulgaricus IMV B-7281 and Bifidobacterium animalis VKB, each strain separately, to the range of the urogenital tract microflora in physiological norm and in cases of experimental intravaginal staphylococcosis of mice induced by Staphylococcus aureus 8325-4. It was found that all these strains had different efficiency in Staphylococcus aureus 8325-4 growth suppression in the vagina of infected mice and affect the spectrum of microorganisms.

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It was investigated the effect of probiotic strains Bifidobacterium animalis VKL and VKB and their mixture on erosive and ulcerative lesions in the gastric mucosa (GM) of rats induced by water immersion restraint stress. It was found that separate prophylactic introduction for 14 days of Bifidobacterium animalis VKL or Bifidobacterium animalis VKB didn't protect the GM from erosive and ulcerative lesions induced by stress. Contrary prophylactic introduction of Bifidobacterium animalis VKL and VKB mixture has been effective in protecting the GM from the lesions.

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The article overviews the potential biomedical applications of nanoscale gold particles for predictive, preventive and personalised nanomedicine in cardiology. The review demonstrates the wide opportunities for gold nanoparticles due to their unique biological properties. The use of gold nanoparticles in cardiology is promising to develop fundamentally new methods of diagnosis and treatment.

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Introduction: For the evaluation of the congestive heart failure (CHF) in rat models, the use of special equipment for echocardiography for dynamic evaluation is suggested. The optimal doxorubicin dose for CHF induction has still not been established.

Aims: The aims of our study was to find a reliable doxorubicin CHF rat model using a general ultrasound (US) equipment for in vivo ultrasound examination of the systemic circulation, to establish the optimal doxorubicin dose, and to assess the feasibility of US guided administration of the drug.

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The immunomodulatory properties of Lactobacillus delbrueckii subsp. bulgaricus IMVB-7281, Lactobacillus casei IMV B-7280, Lactobacillus acidophilus IMV B-7279, Bifidobacterium animales VKL and B. animales VKB strains on the models of experimental staphylococcosis infection in mice were determined.

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The effect of intravaginal injection of Lactobacillus casei IMV B-7280, Lactobacillus acidophilus IMV B-7279, Bifidobacterium animalis VKL and Bifidobacterium animalis VKB strains in various compositions on the range of microflora of the urogenital tract on the model of experimental intravaginal staphylococcosis of mice was determined. It was established that under the influence of various compositions of these strains changes in microflora spectrum occurred the number of representatives of normoflora increased and the number of pathogenic microorganisms, including staphylococci, streptococci, coliform bacteria and fungi, significantly decreased. It was determined that strains of lacto- and bifidobacteria, that were studied, are prospective components of future probiotic drugs efficient in treating staphylococcosis.

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The effect of intravaginal injection of Lactobacillus casei IMV B-7280, Lactobacillus acidophilus IMV B-7279, Bifidobacterium animalis VKL and Bifidobacterium animalis VKB strains in various compositions on the range of microflora of the urogenital tract on the model of experimental intravaginal staphylococcosis of mice was determined. It was established that under the influence of various compositions of these strains changes in microflora spectrum occurred: the number of representatives of normoflora increased and the number of pathogenic microorganisms, including staphylococci, streptococci, coliform bacteria and fungi, significantly decreased. It was determined that strains of lacto- and bifidobacteria, that were studied, are prospective components of future probiotic drugs efficient in treating staphylococcosis.

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Cholesterol-lowering activity of probiotic strains of lactic acid bacteria genera Lactobacillus and Bifidobacterium in the in vivo experiments on the model of experimental hypercholesterolemia in mice was studied. It is established that the prophylactic scheme of introduction of probiotic cultures is more effective than therapeutic one for the manifestation of cholesteraze activity of probiotic cultures. The most effective were the cultures: L.

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The CeO2 sol with the size of nanoparticles 2-4 nm has been synthesized. It has been determined that the synthesized nanocrystalline cerium has antibacterial activity in vitro against different groups of opportunistic microorganisms: clinical strains of Escherichia coli, Staphylococcus aureus and Candida albicans. The rate of viability depression of test-cultures depends on the concentration of cerium dioxide nanoparticles and time of incubation.

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The antibacterial activity of Lactobacillus casei IMV B-7280, Lact. acidophilus IMV B-7279, Bifidobacterium longum VK1, and B. bifidum VK2 strains or their various compositions in relation to Staphylococcus aureus in vitro and on models of experimental intravaginal staphylococcosis of mice was determined.

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The results of research on changes in the level of apoptosis among the spleen cells during the development of intravaginal staphylococcal infection in experimental models of different genetic mice lines are given in the paper. Intravaginal injection of Staphylococcus aureus resulted in an increased number of cells with morphological characteristics of apoptosis in underbred and line BALB/c mice, while it decreased in the ICR line mice. The level of the apoptotic cells in the underbred and line BALB/c mice was accompanied by some level of microorganisms that were seeded out of kidneys--the higher was the number of microorganisms, the more apoptotic cells were indicated.

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