Publications by authors named "Bezdenezhnykh N"

We aim to evaluate the dynamics of glycemic status and markers of carbohydrate metabolism 12 months after coronary artery bypass grafting (CABG) and their relationship with the one-year prognosis. The analysis of outcomes of 653 patients during 1 year after coronary artery bypass grafting is presented. In those patients who visited the study center after 1 year, markers of carbohydrate metabolism (glucose, glycated hemoglobin, fructosamine, 1.

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Unlabelled: The aim of the study was to investigate the effect of carbohydrate metabolism disorders and insulin resistance indices on the immediate results of coronary artery bypass grafting (CABG).

Method: Patients with coronary artery disease who underwent CABG ( = 383) were examined to determine glycemic status, free fatty acid and fasting insulin levels, and insulin resistance indices (Homeostasis Model Assessment of Insulin Resistance (HOMA-IR), McAuley index, Quantitative Insulin Sensitivity Check Index (QUICKI), Revised-QUICKI). Patients were assessed for the development of perioperative complications and their length of stay in the hospital.

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Unlabelled: Patients with type 2 diabetes make up 25 to 40% of those referred for coronary bypass surgery, and the impact of diabetes on the results of the operation is studied in various aspects. To assess the state of carbohydrate metabolism before any surgical interventions, including CABG, daily glycemic control, and the determination of glycated hemoglobin (HbA1c) is recommended. Glycated hemoglobin reflects the glucose concentration for the 3 months prior to the measurement, but alternative markers that reflect glycemic fluctuations over a shorter period of time may be useful in preoperative preparation.

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Objective: We aimed to determine the effects of prehabilitation with neuromuscular electrical stimulation (NMES) on muscle status and exercise capacity in patients before cardiac surgery.

Methods: Preoperative elective cardiac surgery patients were randomly assigned to the NMES group or control group. Intervention in the NMES group was 7-10 sessions, whereas the control group carried out breathing exercises and an educational program.

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The purpose of this work was to study the factors determining the functional state of cardiac surgery patients with a complicated postoperative period upon discharge from the hospital. This observational study included 60 patients who underwent cardiac surgery with a complicated postoperative course and with a prolonged intensive care unit stay of more than 72 h. We assessed handgrip and lower-extremity muscle strength and the six-minute walk test (6MWT) distance 3 days after the surgery and at discharge from the hospital.

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Objective: To study insulin resistance markers and their relationship with preoperative status and hospital complications of coronary artery bypass grafting (CABG) in patients with type 2 diabetes, prediabetes and normoglycemia.

Methods: We included 383 consecutive patients who underwent CABG. Patients were divided into two groups-with carbohydrate metabolism disorders (CMD, = 192) and without CMD ( = 191).

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Unlabelled: The aim of this study was to evaluate Cardio-Ankle Vascular Index (CAVI) and increased arterial stiffness predictors in patients with carbohydrate metabolism disorders (CMD) in the population sample of Russian Federation.

Methods: 1617 patients (age 25-64 years) were enrolled in an observational cross-sectional study Epidemiology of Cardiovascular Diseases and Their Risk Factors in the Regions of the Russian Federation (ESSE-RF). The standard ESSE-RF protocol has been extended to measure the cardio-ankle vascular index (CAVI), a marker of arterial stiffness.

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Objective: To estimate the impact of the low-dose anticancer drugs (ACD) with the different mechanisms of action and human interferon (IFN) alpha 2b on the biological properties, immunophenotypic and cytogenetic characteristics of colon cancer cells in vitro.

Materials And Methods: The study was performed on human colon cancer cell lines COLO 205, HT-29 and 3C-P treated with ACD and IFN in subtoxic concentrations. Expression of CD44, N-cadherin, vimentin, β-catenin, ERCC1 and Slug was assessed by immunocytochemical method.

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Aim: To investigate factors associated with pathological cardio-ankle vascular and ankle-brachial indices (CAVI and ABI) in patients with carbohydrate metabolic disorders (CMD).

Subjects And Methods: A cross-sectional study was conducted in the framework of the multicenter epidemiological study "Epidemiology of Cardiovascular Diseases and Their Risk Factors in the Russian Federation" (ESSE-RF) in March to October 2013. The standard ESSE-RF protocol was extended by an additional study of peripheral arterial stiffness, by estimating CAVI and ABI automatically.

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Aim: To analyze biological characteristics, malignant potential and expression of proteins associated with epithelial-mesenchymal transition in murine lung carcinoma cells transduced with interferon-beta (ifn-β) gene in baculovirus vector.

Materials And Methods: The study was performed on Lewis lung carcinoma (LL) cells transduced with ifn-β gene in recombinant baculovirus vector. Biological characteristics of the LL cells were studied with the use of standard cell culture methods, cytogenetic and immunocytochemical assays.

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Purpose: To analyze main parameters of respiratory dysfunction in patients with type 2 diabetes mellitus (DM) with and without concomitant ischemic heart disease (IHD).

Material And Methods: We examined 104 patients with DM without (n = 64, 61.5%) and with (n = 40, 38.

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Purpose: to analyze main parameters of respiratory dysfunction in patients with type 2 diabetes mellitus (DM) with and without concomitant ischemic heart disease (IHD).

Material And Methods: We examined 104 patients with DM without (n= 64, 61.5%) and with (n=40, 38.

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A comparative analysis of the frequency of cytogenetic abnormalities in cell population U-937 in control conditions and after exposure to tumor necrosis factor has been performed. We have found that in such treatment there is a maximum effect after 48 h, which is expressed in the stimulation of apoptosis and the accumulation of cells with micronuclei and binuclear cells. The induction of premature chromosome condensation is an early marker of the TNF influence.

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Background: Gene therapy represents an interesting alternative treatment for cancers. Interferon-beta is well known as a multifunctional cytokine that provides antiviral, antiproliferative, antiangiogenic and immunomodulating effects. For this reason introduction of this cytokine gene in baculovirus vector is seen as a rather promising tool for anticancer therapy.

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Background: Cell and tissue homeostasis results from the dynamic balance of cell - cell and cell - extracellular component crosstalk that regulates proliferation, differentiation, and apoptosis of cells as well as secretion and activation of soluble factors and/or deposition of extracellular matrix (ECM) components.

Aim: The aim of the work was to study the crosstalk between tumor cells and stromal cell components using noncontact co-cultivation in vitro system.

Materials And Methods: Human and rat breast cancer (BC) cell lines, normal human fibroblasts (NHF) and endothelial cells, and aspirates of bone marrow (BM) of BC patients with different clinical course of the disease (groups "Remission" (BM-R) and "Progression" (BM-P)) were used in noncontact co-cultivation system in vitro.

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Background: In recent years, the presence of disseminated tumor cells (DTC) in bone marrow (BM) of patients with breast cancer (BC) is considered as an important clinical feature of the distribution process. However, relapse often occurs in spite of the negative results of the bone marrow cytology. This suggests the need to find additional signs of the possibility for predict the recurrence.

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Autophagy plays an important role in neoplastic transformation of cells and in resistance of cancer cells to radio- and chemotherapy. p62 (SQSTM1) is a key component of autophagic machinery which is also involved in signal transduction. Although recent empirical observations demonstrated that p62 is overexpressed in variety of human tumors, a mechanism of p62 overexpression is not known.

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Aim: The aim of our study was to determine the complex of molecular genetic markers which are associated with cancer aggressiveness, invasion and metastasis among different molecular subtypes of breast cancer cell lines.

Materials And Methods: The cell lines used in the analysis include T47D, MCF-7, MDA-MB-231, MDA-MB-468, MCF-10A and 184A1. Expression of estrogen receptor, progesterone receptor, Her-2/neu and Ki-67 was studied by immunocytochemical method.

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The development of resistance of cancer cells to therapeutic agents is the major obstacle in the successful treatment of breast cancer and the main cause of breast cancer recurrence. The results of several studies have demonstrated an important role of altered cellular iron metabolism in the progression of breast cancer and suggested that iron metabolism may be involved in the acquisition of a cancer cell drug-resistant phenotype. In the present study, we show that human MCF-7 breast cancer cells with an acquired resistance to the chemotherapeutic drugs doxorubicin (MCF-7/DOX) and cisplatin (MCF-7/CDDP) exhibited substantial alterations in the intracellular iron content and levels of iron-regulatory proteins involved in the cellular uptake, storage and export of iron, especially in profoundly increased levels of ferritin light chain (FTL) protein.

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Aim of the study was to assess prognostic role of high sensitivity C-reactive protein (CRP) in progression of atherosclerosis in patients with ischemic heart disease (IHD) in a year after coronary artery bypass grafting (CABG). We examined 49 patients with stable IHD subjected to elective CABG (45 with and 4 without without cardiopulmonary bypass). In a year after surgery patients were divided into 2 groups: with (group 1, n=18, 36.

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Study aim was to compare rates of perioperative complications of coronary bypass surgery in patients of various age groups and to analyze factors associated with their appearance. We retrospectively studied 2411 case histories of patients subjected to coronary artery bypass surgery between January 2006 and December 2009. According to their age at surgery patients were divided in 4 groups: <60 years (n=1555, mean age 53+/-6 years), 60-64 years (n=379, mean age 61+/-3 years), 65-69 years (n=335, mean age 67+/-2 years), >70 years (n=142, mean age 71+/-3 years).

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Biological activity of protein extracts from transgenic plants of chicory Cichorium intybus L. and lettuce Lactuca sativa L. with human interferon alpha2b gene was investigated against vesicular stomatitis virus.

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Aim of the study was investigation of influence of diabetes mellitus (DM) on rate of detection of multifocal atherosclerosis (MFA) in patients with ischemic heart disease (IHD) at examination before coronary artery bypass grafting (CABG). We retrospectively analyzed 2411 hospital forms of patients with IHD subjected to CABG. DM was found in 317 patients (group 1).

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Unlabelled: The aim of this research is to study the dynamics and efficiency of liposome accumulation in sensitive and resistant human breast cancer cells.

Methods: Methods of fluorescence microscopy, fluorescence microspectroscopy and MTT-test have been used.

Results: The liposome-to-cell interaction and dye cellular uptake in sensitive, cisplatin-resistant and doxorubicin-resistant MCF-7 human breast cancer cells have been analyzed using time changes in both fluorescence resonance energy transfer signal from the donor probe DiO to the acceptor one DiI preloaded in liposomes and cell image brightness.

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