Search results for "N-6"
showing 10 items of 508 documents
Inflammatory markers and cardiovascular risk in the metabolic syndrome
2011
Elevated blood glucose, obesity, high blood pressure, elevated triglycerides and low high density lipoprotein (HDL) cholesterol are well accepted risk factors in the development of coronary artery disease. Clustering of at least three of these factors in an individual is defined as metabolic syndrome (MetS). Obesity is a central pathological mechanism in the disease and it is expected that the incidence of this condition will increase dramatically within the next years. The visceral adipose tissue is not only an energy depot but also an endocrine organ which produces a large number of bioactive molecules, the so called adipokines. In the setting of obesity, the over-production of proinflamm…
Inflammation, Longevity, and Cardiovascular Diseases: Role of Polymorphisms of TLR4
2006
The total burden of infection at various sites may affect the progression of atherosclerosis, the risk being modulated by host genotype. The role of lipopolysaccaride receptor TLR4 is paradigmatic. It initiates the innate immune response against gram-negative bacteria; and TLR4 polymorphisms, as ASP299GLY, suggested to attenuate receptor signaling, have been described. We demonstrated that TLR4 ASP299GLY polymorphism shows a significantly lower frequency in patients affected by myocardial infarction compared to controls, whereas centenarians show a higher frequency. Thus, people genetically predisposed to developing weak inflammatory activity, seem to have fewer chances of developing cardio…
Reduced secretion of proinflammatory cytokines of monosodium urate crystal‐stimulated monocytes in chronic renal failure: an explanation for infreque…
2000
In gouty arthritis, monosodium urate (MSU) crystals interact with monocytes and neutrophils to produce inflammatory reactions associated with acute synovitis. In patients with end-stage renal disease (ESRD), gouty arthritis is a rare condition despite often severe hyperuricaemia. We wondered whether differences in the secretion of proinflammatory cytokines by MSU crystal-stimulated monocytes might be one explanation for the low incidence of gouty arthritis in patients with ESRD compared with healthy controls.Thirteen patients with ESRD on intermittent haemodialysis treatment, six patients with chronic renal failure not yet on dialysis, and 15 age- and sex-matched healthy controls were exami…
Interleukin-6 and its soluble receptor in patients with liver cirrhosis and hepatocellular carcinoma.
2006
AIM: To evaluate the immunohistochemical localization of interleukin-6 (IL-6) and IL-6 receptor (IL-6R) on tumor tissue specimens from patients with hepatocellular carcinoma (HCC) and the serum levels of IL-6 and sIL-6R in a group of patients with HCC as well as liver cirrhosis (LC) in a group of patients with LC alone and in a control group. METHODS: Three groups of subjects were studied: group I (n = 83) suffering from HCC and LC, group II (n = 72) suffering from LC alone and group III (n = 42) as healthy controls. All patients had hepatitis C virus infection. Serum IL-6 and IL-6R levels were determined using a commercially available ELISA kit. Immunohistochemistry was performed using the…
Increased interleukin 6 production by bronchoalveolar lavage cells in patients with active sarcoidosis
1993
Alveolitis of sarcoidosis is characterized by activated alveolar macrophages (AMs) and T cells. The mediators interleukin-1 (IL-1) and interleukin 6 (IL-6) released by AMs represent essential factors for the progression of the T cells in the cell cycle. The role of IL-1 in pulmonary sarcoidosis has previously been studied; however, the relevance of other mediators (i.e. IL-6) has not yet been evaluated. We measured the spontaneous and lipopolysaccharide (LPS)-induced release of IL-6 and tumor necrosis factor alpha (TNF alpha) by bronchoalveolar lavage cells (BAL) and peripheral blood mononuclear cells (PBMNC) in 6 control subjects (group A) and in 15 patients with sarcoidosis, 10 with activ…
Identification of KRT16 as a target of an autoantibody response in complex regional pain syndrome
2016
Abstract Objective Using a mouse model of complex regional pain syndrome (CRPS), our goal was to identify autoantigens in the skin of the affected limb. Methods A CRPS-like state was induced using the tibia fracture/cast immobilization model. Three weeks after fracture, hindpaw skin was homogenized, run on 2-d gels, and probed by sera from fracture and control mice. Spots of interest were analyzed by liquid chromatography-mass spectroscopy (LC-MS) and the list of targets validated by examining their abundance and subcellular localization. In order to measure the autoantigenicity of selected protein targets, we quantified the binding of IgM in control and fracture mice sera, as well as in co…
Proinflammatory Cytokine Profiling of Tears from Dry Eye Patients by Means of Antibody Microarrays
2011
In the pathogenesis of keratoconjunctivitis sicca, immune processes are thought to play an important role. However, the exact details of the pathomechanisms are still unknown. In this study, the expression patterns of proinflammatory cytokines in the tears of patients with different subtypes of dry eye were analyzed.One hundred forty-three subjects subdivided into healthy controls (CTRL, n = 38), patients with aqueous-deficient dry eye (DRYaq, n = 35), patients with changes of the lipid layer (DRYlip, n = 36), and patients with a combination of both (DRYaplip, n = 34) were examined. Expression patterns of proteins (e.g., IL-1β, IL-6, ITNF-α, and IFN-γ) were examined using an advanced antibo…
Both IL-12p70 and IL-23 are synthesized during active Crohnʼs disease and are down-regulated by treatment with anti-IL-12 p40 monoclonal antibody
2005
Background: Interleukin (IL)-12p70 and IL-23 are key T helper-1 (TH1) cytokines that drive the inflammation seen in numerous models of intestinal inflammation. These molecules contain an identical p40 chain that is bound to a p35 chain in IL-12 and a p19 chain in IL-23, making both potentially susceptible to modulation by an anti-IL-12p40 monoclonal antibody (mAb). Methods: In the present study, we sought to determine whether active inflammation in Crohn's disease (CD) is associated with the increased synthesis of both of these cytokines and whether patients treated with an anti-IL-12p40 mAb down-regulate IL-23 as well as IL-12p70 as previous reported. Results: To this end we initially dete…
Significance of serum Il-9 levels in inflammatory bowel disease
2015
IL-9, which may be an inflammatory or regulatory cytokine, can be experimentally produced in a Th17 or modified Th2 context in the presence of T cell receptor (TCR) stimulation. The primary aim of this study was to measure serum IL-9 levels in patients with inflammatory bowel disease (IBD), and evaluate their relationships with the patients’ clinical characteristics. The secondary aim was to determine the levels of interferon-γ (IFN (interferon)-γ), Th2 cytokines (IL-4, IL-5 and IL-13), and IL-6 in order to clarify the context of detectable peripheral cytokines in which IL-9 is produced. Venous blood samples of 43 IBD patients (20 with Crohn’s disease [CD] and 23 with ulcerative colitis [U…
Effects of inhaled nitric oxide on primary graft dysfunction in lung transplantation.
2009
Introduction and Objectives. Inhaled nitric oxide (iNO) is a gaseous drug with known properties of specific pulmonary vasodilation and improved oxygenation. In some clinical trials on lung transplantation (LT) in animals, it has been demonstrated to reduce primary graft dysfunction (PGD) by limiting neutrophil adhesion and the inflammatory cascade. Our objective was to assess whether iNO showed this immunomodulatory effect by determining interleukin (IL)-6, -8, and -10 levels in blood and bronchoalveolar lavage (BAL) in LT patients, and its relationship with PGD incidence. Materials and Methods. Forty-nine LT patients were recruited and included in the iNO or in the control group. Patients …