Markers of systemic inflammatory response in coxarthrosis

Objective: to detect markers of the systemic inflammatory response syndrome in patients with coxarthrosis by means of assessment of the status of the hemostasis system, endothelium function and inflammation intensity. Material and Methods. The indices of the plasmatic hemostasis, levels of VCAM-1, ICAM-1, ELAM-1, VEGF-A, neop-terin were analyzed. Results. It has been found that among the patients with hip coxarthrosis a group of patients (47%) with endothelium dysfunction, cellular immunity activation, a high content of Soluble Fibrin Monomer Complex and D-dimers and a group of patients (53%) without any abnormalities in these parameters should be differentiated. Conclusion. Among the patients with hip coxarthrosis a group with signs of a systemic inflammatory response syndrome (occurrence of endothelium dysfunction, cellular immunity activation, a high content of Soluble Fibrin Monomer Complex and D-dimers) and a group of patients with reference values of these parameters can be determined. The markers of the systemic inflammatory response syndrome in cases with hip osteoarthrosis are Soluble Fibrin Monomer Complex and D-dimers, high levels of intercellular adhesion molecule-1 (slCAM-1), vascular cell adhesion molecule-2 (sVCAM-1), cell adhesion E-selectin-1 (ELAM-1) and Neopterin (Np)

Comparative study of antibacterial action of iron and copper nanoparticles on clinical Staphylococcus aureus strains

Research objective is to study antibacterial action of nanoparticles of iron and copper on polyantibiotically resistant clinical Staphylococcus aureus strains. Materials and methods include antibacterial action of nanoparticles of copper and iron on 10 Staphylococcus au¬reus strains, isolated from patients with purulent complications stayed in the in-patient department of traumatology and orthopedics. Solutions of powders of iron and copper have been prepared directly before the experiment in concentra¬tion from 0,001 to 1 mg/ml. it has been revealed that the influence of nanoparticles on growth of clinical strains and the intensity of antibacterial effect depends on the form of nanoparticles, their concentration and action time. concentration of 0,1 mg/ml and 1 mg/ ml of iron nanoparticles has provoked the decrease in quantity of microbe cells from 3 to 34 % (p <0,01). in smaller concentrations the reliable antibacterial effect has not been observed. Antibacterial activity of copper nanoparticles has been expressed in a wide range of concentrations from 0,001 mg/ml to 1 mg/ml, even during short-term action (30 minutes) it has provoked reduction of quantity of the microbe cells grown on the firm nutrient medium, 97-100 % in comparison with the control (p <0,001). in conclusion it is to point out that copper nanoparticles have more expressed inhibitory effect on growth of clini��cal strains of golden staphylococcus than iron nanoparticle suspension. inhibition degree depends on superdispersed powder dosage and incubation perio

The glassy response of solid He-4 to torsional oscillations

We calculated the glassy response of solid He-4 to torsional oscillations assuming a phenomenological glass model. Making only a few assumptions about the distribution of glassy relaxation times in a small subsystem of otherwise rigid solid He-4, we can account for the magnitude of the observed period shift and concomitant dissipation peak in several torsion oscillator experiments. The implications of the glass model for solid He-4 are threefold: (1) The dynamics of solid He-4 is governed by glassy relaxation processes. (2) The distribution of relaxation times varies significantly between different torsion oscillator experiments. (3) The mechanical response of a torsion oscillator does not require a supersolid component to account for the observed anomaly at low temperatures, though we cannot rule out its existence.Comment: 9 pages, 4 figures, presented at QFS200

Tunnelling defect nanoclusters in hcp 4He crystals: alternative to supersolidity

A simple model based on the concept of resonant tunnelling clusters of lattice defects is used to explain the low temperature anomalies of hcp 4He crystals (mass decoupling from a torsional oscillator, shear modulus anomaly, dissipation peaks, heat capacity peak). Mass decoupling is a result of an internal Josephson effect: mass supercurrent inside phase coherent tunnelling clusters. Quantitative results are in reasonable agreement with experiments.Comment: 13 pages, 5 figure

Defects and glassy dynamics in solid He-4: Perspectives and current status

We review the anomalous behavior of solid He-4 at low temperatures with particular attention to the role of structural defects present in solid. The discussion centers around the possible role of two level systems and structural glassy components for inducing the observed anomalies. We propose that the origin of glassy behavior is due to the dynamics of defects like dislocations formed in He-4. Within the developed framework of glassy components in a solid, we give a summary of the results and predictions for the effects that cover the mechanical, thermodynamic, viscoelastic, and electro-elastic contributions of the glassy response of solid He-4. Our proposed glass model for solid He-4 has several implications: (1) The anomalous properties of He-4 can be accounted for by allowing defects to freeze out at lowest temperatures. The dynamics of solid He-4 is governed by glasslike (glassy) relaxation processes and the distribution of relaxation times varies significantly between different torsional oscillator, shear modulus, and dielectric function experiments. (2) Any defect freeze-out will be accompanied by thermodynamic signatures consistent with entropy contributions from defects. It follows that such entropy contribution is much smaller than the required superfluid fraction, yet it is sufficient to account for excess entropy at lowest temperatures. (3) We predict a Cole-Cole type relation between the real and imaginary part of the response functions for rotational and planar shear that is occurring due to the dynamics of defects. Similar results apply for other response functions. (4) Using the framework of glassy dynamics, we predict low-frequency yet to be measured electro-elastic features in defect rich He-4 crystals. These predictions allow one to directly test the ideas and very presence of glassy contributions in He-4.Comment: 33 pages, 13 figure

Immunological Indices At Gerontological Patients With Ischemic Heart Disease, Metabolic Disturbances And Osteoporosis

Gerontological patients with ischemic heart disease which is not accompanied by such pathology as diabetes (SD) and osteoporosis (OP) with normal or increased body weight (females) generally have got «the highest potential of health». It has been proved by phase portraits and autoantibodies (AAb) and cytokines indices. Adaptative disturbances in these groups have been revealed at the age of 95 and 89 accordingly. The presence of such accompanying pathology as SD and OP causes dysadaptation. It is evident by means of autoantibodies (AAb) and cytokines indices and phase portraits of «temporary dependence of general cholesterol levels - its first derivative

Biomarkers content in blood serum of patients with osseous neoformations

The aim of the study was the estimation of several biomarkers in differentiation diagnostics of tumour diseases in osseous system. Material and methods. 160 patients with benign (115) and malignant (45) osseous neoformations were investigated. Neopterine, tumour necrosis factor (TNF-а), interleukin-6, adhesion molecules of vessel endothe-lium (sVCAM-1) and vascular endothelial growth factor (VEGF) levels were identified by ELISA solid-phase test and compared with the levels of 20 apparently healthy individuals. Tumor verification was fulfilled by X-ray, CT, MRI and histomorphological essay. Results. Both benign and malignant osseous tumour patients showed increased levels of neopterine, TNF-а and interleukin-6 being more significant with malignant processes. The level of sVCAM was decreased in patients of both groups and VEGF level corresponded to the control, these indexes did not show any differences between the groups. The assessment of diagnostic value of these cytokines indicates that positive results for TNF and neopterine give the ground for the final diagnostic decision while the same results for interleukin-6 give moderate basement for diagnostic decision. Conclusion. Increased TNF-а and neopterine levels allow substantiating the difference between benign and malignant osseous tumours and improving diagnostic quality

Concentration of MMP-9, TNF-a and IL-6 in patients with tumors and tumor-like bone lesions

Aim: to determine the concentration of MMP-9, TNF-a and IL-6 in blood serum of patients with benign and malignant bone tumors and feasibility of cytokine data use for differential diagnostics of the neoplastic process nature. Material and Methods. Levels of matrix metalloproteinase-9 (MMP-9), tumor necrosis factor-a (TNF-a) and interleukin-6 (IL-6) in blood serum were determined by the immunoenzyme method in 64 patients with bone tissue neoplasms (fibrous dysplasia, osteocystoma, giant-cell tumor, osteosarcoma, chondrosarcoma, bone metastases, multiple myeloma). Re-sults. MMP-9 level was heightened in patients suffered from chondrosarcoma and multiple myeloma. TNF-a and IL-6 expression was increased in cases with bone metastases. MMP-9, TNF-a and IL-6 levels were higher in cases with malignant bone neoplasms than in cases with benign bone tumors. Conclusion. MMP-9, TNF-a and IL-6 participate in the neoplastic process pathogenesis directly. Nevertheless it is too early to speak about the diagnostic value of the cytokines in cases with tumorous bone affection.</p

Прогностическая значимость актин-связывающих белков фасцина и эзрина у больных плоскоклеточным раком головы и шеи

Rationale: During neoplastic transformation, epithelial cells become mobile, which is one of the main mechanisms of metastatic disease and recurrence. Cell motility is regulated by actin-binding proteins, which ensure the association/dissociation of actin filaments and their interaction with the cell membrane. Previously, we have shown the presence of actin-binding proteins in the serum from patients with squamous cell carcinoma of the head and neck (HNSCC); however, their association with the development of metastases and relapses in cancer patients has not been sufficiently studied. Aim: To evaluate the serum levels of actin-binding proteins fascin-1 and ezrin in patients with HNSCC depending on the disease recurrence and lymphatic metastasis. Materials and methods: Serum fascin-1 and ezrin levels before combination therapy were measured with ELISA assay in 30 HNSCC (T1-4N0-2M0) patients (mean age 56 7 years). Results: The median fascin-1 level was significantly higher in the patients with lymphatic metastases, compared to those without metastases: 0.64 (0.40; 5.89) vs 6.35 (1.72; 8.35) ng/mL, respectively (p 0.001). At 12 to 36 months after combination therapy, the disease relapsed in 12 (40%) patients. Ezrin levels were significantly higher in the relapsed patients, compared to those without a relapse within 3 years after combination therapy: 2.55 (2.35; 2.75) vs 1.93 (1.87; 2.5) ng/mL (p = 0.02). The ROC analysis showed an association between fascin-1 serum levels with metastatic disease (AUC = 0.71, 95% confidence interval 0.570.85) and an association between ezrin levels and the disease relapse (AUC = 0.76, 95% confidence interval 0.570.94). Conclusion: These indicators can be used for the development of minimally invasive early detection of metastases in lymphatic nodes and for the prognosis of HNSCC recurrence.Актуальность. В процессе неопластической трансформации эпителиальные клетки становятся подвижными, что служит одним из основных механизмов метастазирования и рецидивирования. Клеточная подвижность регулируется актин-связывающими белками, осуществляющими ассоциацию/диссоциацию актиновых филаментов между собой и с клеточной мембраной. Ранее нами показано присутствие актин-связывающих белков в сыворотке крови больных плоскоклеточным раком головы и шеи (ПРГШ), однако недостаточно исследована их связь с развитием метастазов и рецидивов у онкологических больных. Цель исследовать уровень актин-связывающих белков фасцина-1 и эзрина в сыворотке крови больных ПРГШ в зависимости от рецидивирования и лимфогенного метастазирования. Материал и методы. У 30 пациентов с ПРГШ (T1-4N0-2M0), средний возраст 56 7 лет, методом иммуноферментного анализа определяли уровни фасцина-1 и эзрина в сыворотке крови до комбинированного лечения. Результаты. Медианный уровень фасцина-1 был статистически значимо выше в сыворотке пациентов с лимфогенными метастазами по сравнению с больными без метастазов: 0,64 (0,40; 5,89) и 6,35 (1,72; 8,35) нг/мл соответственно (p 0,001). В период от 12 до 36 месяцев после комбинированного лечения рецидив опухоли развился у 12 (40%) больных. Уровень эзрина был статистически значимо выше в группе больных с рецидивированием по сравнению с больными ПРГШ, у которых рецидивы не развились в течение 3 лет после комбинированного лечения: 2,55 (2,35; 2,75) против 1,93 (1,87; 2,5) нг/мл (p = 0,02). По данным ROC-анализа выявлена связь содержания фасцина-1 в сыворотке крови с процессом метастазирования (AUC = 0,71, 95% доверительный интервал 0,570,85) и связь содержания эзрина с развитием рецидивов (AUC = 0,76, 95% доверительный интервал 0,570,94). Заключение. Полученные показатели могут быть использованы для разработки малоинвазивных способов раннего обнаружения метастазов в лимфатических узлах и для прогноза рецидивирования ПРГШ

ДИАГНОСТИЧЕСКИЕ КЛИНИКО-ЛУЧЕВЫЕ ПРИЗНАКИ ГИГАНТОКЛЕТОЧНОЙ ОПУХОЛИ, КОСТНОЙ КИСТЫ И ОСТЕОСАРКОМЫ

The problems of timeliness and correctness of diagnostics of bone tumours, as well as therapeutic decision deserve the most careful consideration. The present research concerns the detection of criteria of differential diagnostics of giant-cell tumours, osteocystoma and osteosarcoma (according to the literary data). According to the literature the study of clinical and radiologic diagnostics, allowed to work out differential and diagnostic tables of signs and algorithms of diagnostics of giant-cell tumours, osteocystoma and osteosarcoma. It enabled to detect a therapeutic and diagnostic approach to patients with bone tumours.Вопросы своевременности и правильности диагностики костных опухолей, а также выбора тактики лечения заслуживают самого серьёзного внимания. Выявлены критерии дифференциальной диагностики гигантоклеточной опухоли, костной кисты и остеосаркомы но собственным и литературным данным. На их основе разработаны дифференциально-диагностические таблицы признаков этих видов опухолей, позволяющие определить тактику диагностики и лечения больных