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      Call for Papers: Green Renal Replacement Therapy: Caring for the Environment

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      About Blood Purification: 3.0 Impact Factor I 5.6 CiteScore I 0.83 Scimago Journal & Country Rank (SJR)

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      Increased dialysate MCP-1 is associated with cardiovascular mortality in peritoneal dialysis patients: a prospective observational study.

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          Abstract

          The aim of this study was to investigate the association between the dialysate MCP-1 (dMCP-1) and systemic inflammatory and nutritional markers in peritoneal dialysis (PD) patients. In addition, we examined the prognostic value of dMCP-1 on all-cause or cardiovascular mortality in these patients.

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          Malnutrition-inflammation complex syndrome in dialysis patients: causes and consequences.

          Protein-energy malnutrition (PEM) and inflammation are common and usually concurrent in maintenance dialysis patients. Many factors that appear to lead to these 2 conditions overlap, as do assessment tools and such criteria for detecting them as hypoalbuminemia. Both these conditions are related to poor dialysis outcome. Low appetite and a hypercatabolic state are among common features. PEM in dialysis patients has been suggested to be secondary to inflammation; however, the evidence is not conclusive, and an equicausal status or even opposite causal direction is possible. Hence, malnutrition-inflammation complex syndrome (MICS) is an appropriate term. Possible causes of MICS include comorbid illnesses, oxidative and carbonyl stress, nutrient loss through dialysis, anorexia and low nutrient intake, uremic toxins, decreased clearance of inflammatory cytokines, volume overload, and dialysis-related factors. MICS is believed to be the main cause of erythropoietin hyporesponsiveness, high rate of cardiovascular atherosclerotic disease, decreased quality of life, and increased mortality and hospitalization in dialysis patients. Because MICS leads to a low body mass index, hypocholesterolemia, hypocreatininemia, and hypohomocysteinemia, a "reverse epidemiology" of cardiovascular risks can occur in dialysis patients. Therefore, obesity, hypercholesterolemia, and increased blood levels of creatinine and homocysteine appear to be protective and paradoxically associated with a better outcome. There is no consensus about how to determine the degree of severity of MICS or how to manage it. Several diagnostic tools and treatment modalities are discussed. Successful management of MICS may ameliorate the cardiovascular epidemic and poor outcome in dialysis patients. Clinical trials focusing on MICS and its possible causes and consequences are urgently required to improve poor clinical outcome in dialysis patients.
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            Modulation of C-reactive protein-mediated monocyte chemoattractant protein-1 induction in human endothelial cells by anti-atherosclerosis drugs.

            C-reactive protein (CRP) induces adhesion molecule expression by endothelial cells. However, the effects of CRP on chemokine expression by endothelial cells are not known. We tested the effects of CRP on the production of the chemokines monocyte chemoattractant protein-1 (MCP-1) and RANTES in cultured human umbilical vein endothelial cells. The secretion of chemokines was assessed by ELISA. Incubation with 100 microgram/mL recombinant human CRP induced a 7-fold increase in MCP-1 but no change in RANTES secretion. We showed that the effect of CRP on MCP-1 was present even at 5 microgram/mL CRP, with stepwise increases as the CRP concentration was increased to 10, 50, and 100 microgram/mL. The effect of CRP on MCP-1 induction was not influenced by aspirin (at concentrations up to 1 mmol/L), but it was significantly inhibited by 5 micromol/L simvastatin. The peroxisome proliferator-activated receptor-alpha activators fenofibrate (100 micromol/L) and Wy-14649 (100 micromol/L) almost completely abolished the induction of MCP-1, but the peroxisome proliferator-activated receptor-gamma activator ciglitazone had only a moderate effect. These results further strengthen the role of CRP in the pathogenesis of vascular inflammation and, likely, atherosclerosis and provide a crucial insight into a novel mechanism of action of anti-atherosclerosis drugs such as simvastatin and fenofibrate.
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              The malnutrition, inflammation, and atherosclerosis (MIA) syndrome - the heart of the matter

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                Author and article information

                Journal
                Am. J. Nephrol.
                American journal of nephrology
                S. Karger AG
                1421-9670
                0250-8095
                2014
                : 40
                : 4
                Affiliations
                [1 ] Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea.
                Article
                000368201
                10.1159/000368201
                25323428
                a0d11fb4-f18f-4206-b04f-e32b957f7d65
                History

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