259 research outputs found

    Specificity of formation and development of traditional musical culture in the Kemerovo region territory

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    The timeliness of the article is determined by identifying general and specific characteristics of formation and existence of musical culture in the industrially developed region of Siberia, which preserves diversity of musical traditions. The goal is to identify specificity of for-mation of regional musical culture and to understand its main characteristics. The results of the research involve determining of correlations between peculiarities of historical paths and factors of formation of regional culture and specificity of musical folklore, and revealing of folklore samples related to secondary forms (“folklorism”)

    Medical therapy for patients with subclinical and clinical carotid atherosclerosis

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    The management of carotid artery disease includes both modifications in life style as well treatment of vascular risk factors. However, strict risk factor modification, including improved antihypertensive therapy, lipid management, smoking cessation, and antiplatelet therapy, promise for reducing the vascular event rate in patients with carotid atherosclerosis. The best medical management for stroke prevention was highlighted in clinical practice guidelines issued jointly in 2006 by the American Heart Association and the American Stroke Association, and co-sponsored by the Council on Cardiovascular Radiology and Intervention and the American Academy of Neurology. Lowering blood pressure to a target below 120/80 mm Hg by life style interventions and antihypertensive treatment. Glucose control to near-normoglycemic levels (target hemoglobin A1C ≀7%) is recommended among diabetics to reduce micro-vascular complications and, with lesser certainty, macrovascular complications. The primary objective of this review is to summarize the current evidence and standards for the advanced diagnostic and management strategies used in asymptomatic and symptomatic patients with carotid atherosclerosis

    Prediction of vascular events in subjects with subclinical atherosclerosis and the metabolic syndrome: the role of markers of inflammation.

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    AIM: The presence of the metabolic syndrome (MS) increases cardiovascular morbidity and mortality and we aimed to assess the outcome in subjects with the MS and subclinical atherosclerosis. METHODS: We followed-up for five years 339 Mediterranean subjects with asymptomatic carotid intima-media thickness >0.9 mm (men: 60%; age: 66±5 years), of whom 130 had the MS (men: 59%; age: 66±5 years), evaluating at baseline traditional cardiovascular risk factors (including male gender, older age, obesity, hypertension, diabetes, smoking, family history of cardiovascular diseases, dyslipidemia) and plasma levels of C-reactive protein and fibrinogen. RESULTS: Cardio- and cerebrovascular events were registered in the 29% of subjects with the MS and in the 20% of those without it and the presence of more criteria for the diagnosis of the MS was significantly associated with vascular morbidity and mortality. By multivariate analysis, including all baseline variables, independent predictive roles for the events were found for elevated markers of inflammation (OR 3.8), elevated fasting glucose (OR 2.1) and elevated triglycerides (OR 1.4). CONCLUSION: These findings confirm a worst vascular outcome in subjects with more criteria for the diagnosis of the MS and further suggest the need of future research to understand the combined role of inflammation and the MS in the progression from subclinical to clinical atherosclerosis

    Threshold J/ψ−J/\psi- production in nucleon-nucleon collisions

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    We analyze J/ψ−J/\psi- production in nucleon-nucleon collisions near threshold in the framework of a general model independent formalism, which can be applied to any reaction N+N→N+N+V0N+N\to N+N+V^0, where V0=ωV^0=\omega, ϕ\phi, or J/ψJ/\psi. Such reactions show large isotopic effects: a large difference for pppp- and pnpn-collisions, which is due to the different spin structure of the corresponding matrix elements. The analysis of the spin structure and of the polarization observables is based on symmetry properties of the strong interaction. Using existing experimental data on the different decays of J/ψ−J/\psi-meson, we suggest a model for N+N→N+N+J/ψN+N\to N+N+J/\psi, based on t−t-channel η+π\eta+\pi-exchanges. We predict polarization phenomena for the n+p→n+p+J/ψn+p\to n+p+J/\psi-reaction and the ratio of cross sections for npnp and pppp-collisions. For the processes η(π)+N→N+J/ψ\eta(\pi)+N\to N+J/\psi we apply two different approaches: vector meson exchange and local four-particle interaction. In both cases we find larger J/ψJ/\psi-production in npnp-collisions, with respect to pppp-collisions.Comment: 17 pages, 6 figure

    Considerations on rescattering effects for threshold photo- and electro-production of π0\pi^0 on deuteron

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    We show that for the S-state π0\pi^0-production in processes Îł+d→d+π0\gamma+d\to d+\pi^0 and e−+d→e−+d+π0e^-+d\to e^-+d+\pi^0 the rescattering effects due to the transition: Îł+d→p+p+π− \gamma+d\to p+p+\pi^- (or n+n+π+)→d+π0n+n+\pi^+)\to d+\pi^0 are cancelled out due to the Pauli principle. The large values for these effects predicted in the past may result from the fact that the spin structure of the corresponding matrix element and the necessary antisymmetrization induced by the presence of identical protons (or neutrons) in the intermediate state was not taken into account accurately. One of the important consequences of these considerations is that π0\pi^0 photo- and electro-production on deuteron near threshold can bring direct information about elementary neutron amplitudes.Comment: Add a new sectio

    Chronic lymphocytic leukaemia: the role of T cells in a B cell disease

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    Chronic lymphocytic leukaemia (CLL) has long been thought to be an immunosuppressive disease and abnormalities in T‐cell subset distribution and function have been observed in many studies. However, the role of T cells (if any) in disease progression remains unclear and has not been directly studied. This has changed with the advent of new therapies, such as chimeric antigen receptor‐T cells, which actively use retargeted patient‐derived T cells as “living drugs” for CLL. However complete responses are relatively low (~26%) and recent studies have suggested the differentiation status of patient T cells before therapy may influence efficacy. Non‐chemotherapeutic drugs, such as idelalisib and ibrutinib, also have an impact on T cell populations in CLL patients. This review will highlight what is known about T cells in CLL during disease progression and after treatment, and discuss the prospects of using T cells as predictive biomarkers for immune status and response to therapy

    Overexpression of Mcl-1 exacerbates lymphocyte accumulation and autoimmune kidney disease in lpr mice

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    Cell death by apoptosis has a critical role during embryonic development and in maintaining tissue homeostasis. In mammals, there are two converging apoptosis pathways: the ‘extrinsic’ pathway, which is triggered by engagement of cell surface ‘death receptors’ such as Fas/APO-1; and the ‘intrinsic’ pathway, which is triggered by diverse cellular stresses, and is regulated by prosurvival and pro-apoptotic members of the Bcl-2 family of proteins. Pro-survival Mcl-1, which can block activation of the proapoptotic proteins, Bax and Bak, appears critical for the survival and maintenance of multiple haemopoietic cell types. To investigate the impact on haemopoiesis of simultaneously inhibiting both apoptosis pathways, we introduced the vavP-Mcl-1 transgene, which causes overexpression of Mcl-1 protein in all haemopoietic lineages, into Faslpr/lpr mice, which lack functional Fas and are prone to autoimmunity. The combined mutations had a modest impact on myelopoiesis, primarily an increase in the macrophage/monocyte population in Mcl-1tg/lpr mice compared with lpr or Mcl-1tg mice. The impact on lymphopoiesis was striking, with a marked elevation in all major lymphoid subsets, including the non-conventional double-negative (DN) T cells (TCRÎČ+ CD4– CD8– B220+ ) characteristic of Faslpr/lpr mice. Of note, the onset of autoimmunity was markedly accelerated in Mcl-1tg/lpr mice compared with lpr mice, and this was preceded by an increase in immunoglobulin (Ig)-producing cells and circulating autoantibodies. This degree of impact was surprising, given the relatively mild phenotype conferred by the vavP-Mcl-1 transgene by itself: a two- to threefold elevation of peripheral B and T cells, no significant increase in the non-conventional DN T-cell population and no autoimmune disease. Comparison of the phenotype with that of other susceptible mice suggests that the development of autoimmune disease in Mcl-1tg/lpr mice may be influenced not only by Ig-producing cells but also other haemopoietic cell types

    Prevalence of metabolic syndrome: a comparative analysis in an unselected sample of mediterranean subjects.

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    Abstract AIM: The metabolic syndrome (MS) is associated with increased cardiovascular and cerebrovascular risk. This study aimed to compare the difference of the three established diagnostic criteria of MS, developed by Adult Treatment Panel III (ATP III), American Heart Association (AHA) and National Heart Lung and Blood Institute (NHLBI), and International Diabetes Federation (IDF), with regard to the prevalence of the syndrome and the ability to correctly identify individuals with cardiovascular or cerebrovascular disease or subclinical atherosclerosis. METHODS: We studied 947 consecutive patients underwent clinical evaluation between the 1997-2002. The project design included a medical assessment, biochemical analyses and the ecocolordoppler examination of carotid arteries. RESULTS: The MS prevalence was 37% in ATPIII subjects, 36% in AHA/NHLBI subjects and 43% in IDF subjects. Excluding patients with diabetes (N.=259), the MS prevalence ranged from 32% (ATPIII and AHA/NHLBI subjects) and 40% (IDF subjects). By most criteria, MS-positive subjects had significant incidence of carotid atherosclerosis (P<0.05) and cardiovascular events (P<0.05) than MS-negative subjects, but not cerebrovascular events. Finally, patients with MS had higher serum levels of fibrinogen (P<0.04). CONCLUSION: Subclinical atherosclerosis and cardiovascular events were increased in presence of the MS, irrespective of the several definitions

    Fludarabine modulates composition and function of the T cell pool in patients with chronic lymphocytic leukaemia

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    The combination of cytotoxic treatment with strategies for immune activation represents an attractive strategy for tumour therapy. Following reduction of high tumour burden by effective cytotoxic agents, two major immune-stimulating approaches are being pursued. First, innate immunity can be activated by monoclonal antibodies triggering antibody-dependent cellular cytotoxicity. Second, tumour-specific T cell responses can be generated by immunization of patients with peptides derived from tumour antigens and infused in soluble form or loaded onto dendritic cells. The choice of cytotoxic agents for such combinatory regimens is crucial since most substances such as fludarabine are considered immunosuppressive while others such as cyclophosphamide can have immunostimulatory activity. We tested in this study whether fludarabine and/or cyclophosphamide, which represent a very effective treatment regimen for chronic lymphocytic leukaemia, would interfere with a therapeutic strategy of T cell activation. Analysis of peripheral blood samples from patients prior and during fludarabine/cyclophosphamide therapy revealed rapid and sustained reduction of tumour cells but also of CD4+ and CD8+ T cells. This correlated with a significant cytotoxic activity of fludarabine/cyclophosphamide on T cells in vitro. Unexpectedly, T cells surviving fludarabine/cyclophosphamide treatment in vitro had a more mature phenotype, while fludarabine-treated T cells were significantly more responsive to mitogenic stimulation than their untreated counterparts and showed a shift towards TH1 cytokine secretion. In conclusion, fludarabine/cyclophosphamide therapy though inducing significant and relevant T cell depletion seems to generate a micromilieu suitable for subsequent T cell activation
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