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Dialysis cytokines

Klaus Kratochwill, Michael Boehm, Rebecca Herzog, Katharina Gruber, Anton Michael Lichtenauer, Lilian Kuster, Dagmar Csaicsich, Andreas Gleiss, Seth L Alper, Christoph Aufricht, Andreas Vychytil
BACKGROUND: Peritonitis and ultrafiltration failure remain serious complications of chronic peritoneal dialysis (PD). Dysfunctional cellular stress responses aggravate peritoneal injury associated with PD fluid exposure, potentially due to peritoneal glutamine depletion. In this randomized cross-over phase I/II trial we investigated cytoprotective effects of alanyl-glutamine (AlaGln) addition to glucose-based PDF. METHODS: In a prospective randomized cross-over design, 20 stable PD outpatients underwent paired peritoneal equilibration tests 4 weeks apart, using conventional acidic, single chamber 3...
2016: PloS One
M Mir, A Rostami, M Hormozi
BACKGROUND AND AIM: Interleukin (IL)-18 is a proinflammatory cytokine secreted from mononuclear cells. Serum concentration of IL-18 is a strong predictor of death in patients with cardiovascular diseases. Recent studies have shown that microinflammation is involved in the pathogenesis of diabetic nephropathy as well as of cardiovascular diseases. This study aimed to test the hypothesis that the serum level of IL-18 is a common predictor of nephropathy and atherosclerosis in patients with type 2 diabetes...
August 31, 2016: Diabetes & Metabolic Syndrome
Pieter Joubert, Markus Ketteler, Carolina Salcedo, Joan Perello
Cardiovascular calcification (CVC) associated with conditions such as ageing, diabetes or renal impairment, results from the deposition of hydroxyapatite in the endothelium or media of blood vessels. Key medical management options are directed towards controlling plasma calcium and phosphate concentrations (e.g. parathormone inhibition, phosphate binders, dialysis), enhancing the effect of calcification inhibitors (e.g. fetuin-A, pyrophosphate, vitamin K, osteopontin, matrix Gla protein) and decreasing the effect of promoters of calcification (e...
September 2016: Medical Hypotheses
D Cieniawski, P Miarka, E Ignacak, A Bętkowska-Prokop, M Waluś-Miarka, B Idzior-Waluś, M Kuźniewski, W Sułowicz
BACKGROUND: Patients who are receiving immunosuppressive treatment after kidney transplantation are at greater risk of developing new-onset diabetes after transplantation (NODAT). New biochemical markers that may contribute to a better assessment of the prognosis of renal failure for patients diagnosed with diabetes mellitus (DM) are needed. The aim of this study was to assess selected proinflammatory markers in patients after kidney transplantation depending on the prevalence of DM and to evaluate the predictive value of these cytokines...
June 2016: Transplantation Proceedings
Roshan P George, Aneesh K Mehta, Sebastian D Perez, Pamela Winterberg, Jennifer Cheeseman, Brandi Johnson, Jean Kwun, Stephanie Monday, Linda Stempora, Barry Warshaw, Allan D Kirk
An individual's immune function, susceptibility to infection, and response to immunosuppressive therapy are influenced in part by his/her T cell maturation state. Although childhood is the most dynamic period of immune maturation, scant information regarding the variability of T cell maturation in children with renal disease is available. In this study, we compared the T cell phenotype in children with renal failure (n=80) with that in healthy children (n=20) using multiparameter flow cytometry to detect markers of T cell maturation, exhaustion, and senescence known to influence immune function...
July 13, 2016: Journal of the American Society of Nephrology: JASN
Chia-Te Liao, Marcela Rosas, Luke C Davies, Peter J Giles, Victoria J Tyrrell, Valerie B O'Donnell, Nicholas Topley, Ian R Humphreys, Donald J Fraser, Simon A Jones, Philip R Taylor
The inflammatory activation and recruitment of defined myeloid populations is essential for controlling the bridge between innate and adaptive immunity and shaping the immune response to microbial challenge. However, these cells exhibit significant functional heterogeneity and the inflammatory signals that differentially influence their effector characteristics are poorly characterized. In this study, we defined the phenotype of discrete subsets of effective antigen-presenting cells (APCs) in the peritoneal cavity during peritonitis...
September 2016: European Journal of Immunology
Jessica L Weaver, Paul J Matheson, Ryan T Hurt, Cynthia D Downard, Craig J McClain, R Neal Garrison, Jason W Smith
BACKGROUND: MicroRNAs (miRNAs) are small segments of noncoding RNA that regulate gene expression and protein function, and therefore are key regulators of cellular processes including those of the inflammatory cascade after hemorrhagic shock (HS). We have previously shown that direct peritoneal resuscitation (DPR), as an adjunct to traditional IV fluid resuscitation, improves visceral blood flow and reduces pro-inflammatory cytokines released during HS. The effects of DPR on hepatic miRNA (miR) expression patterns after resuscitated HS are not known...
July 2016: Journal of the American College of Surgeons
Mari Ishida, Takatoshi Kakuta, Takayo Miyakogawa, Ryoko Tatsumi, Chiemi Matsumoto, Masafumi Fukagawa
OBJECTIVE: Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of endothelial nitric oxide synthase. Elevated serum ADMA concentration is associated with impaired vascular endothelial function. We examined the relationships of ADMA with pentosidine, a representative advanced glycation end product, cytokines and the markers of peritoneal inflammation, damage and repair in dialysate effluent of peritoneal dialysis patients. METHODS: Study design was cross-sectional...
2016: Tokai Journal of Experimental and Clinical Medicine
Masaru Matsui, Ken-Ichi Samejima, Yukiji Takeda, Katsuhiko Morimoto, Miho Tagawa, Kenji Onoue, Satoshi Okayama, Hiroyuki Kawata, Rika Kawakami, Yasuhiro Akai, Hiroyuki Okura, Yoshihiko Saito
BACKGROUND: Placental growth factor (PlGF) is a member of the vascular endothelial growth factor family that acts as a pleiotropic cytokine capable of stimulating angiogenesis and accelerating atherogenesis. Soluble fms-like tyrosine kinase-1 (sFlt-1) antagonizes PlGF action. Higher levels of PlGF and sFlt-1 have been associated with cardiovascular events in patients with chronic kidney disease, yet little is known about their relationship with adverse outcomes in patients on peritoneal dialysis (PD)...
May 2016: Cardiorenal Medicine
Mufide Oncel, Seval Akbulut, Turkan Toka Ozer, Aysel Kiyici, Mustafa Keles, Beyhan Baltaci, Suleyman Turk
BACKGROUND: Cytokines are essential mediators of immune response. Chronic renal failure patients suffer from chronic inflammation that results from factors such as impaired renal function, accumulation of uremic toxins and bio incompatibility of dialyzer membranes. These patients are also at increased risk of cardiovascular diseases. We have evaluated cytokines, adipocytokines and inflammatory markers in patients with chronic renal failure undergoing hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD)...
August 2016: Renal Failure
Menghua Gao, Xiumei Zhu, Liping Wu, Liyan Qiu
To circumvent the severe toxicity of the systemic delivery of IL-12 protein and the limits of local administration of IL-12 gene, we constructed a polymersome system for systemic delivery of recombinant murine IL-12 plasmid (pmIL-12) based on amphiphilic polyphosphazenes containing weakly cationic N,N-diisopropylethylenediamine (DPA) as hydrophobic groups and monomethoxy poly(ethylene glycol) (mPEG) as hydrophilic tails. By simple dialysis method, pmIL-12 was successfully loaded into polymersomes due to the combination effect of physical encapsulation and electrostatic interaction...
June 13, 2016: Biomacromolecules
Toru Doi, Tokuhide Doi, Naohiro Kawamura, Toshihiro Matsui, Akiko Komiya, Zaika Tei, Gaku Niitsuma, Junichi Kunogi
BACKGROUND: Dialysis patients undergoing orthopaedic surgery are at high risk for postoperative infection. Diagnosis of postoperative infection is difficult in dialysis patients due to presentation of signs and symptoms similar to infection, such as fever and elevated inflammatory marker levels. Neutrophil CD64 expression (CD64), a marker of infection, is upregulated by microbial wall components and several cytokines (interferon-γ and tumor necrosis factor-α). The purpose of this study is to evaluate the usefulness of CD64 for diagnosing postoperative infection in dialysis patients post orthopaedic surgery...
July 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Jianmin Chen, Julius E Kieswich, Fausto Chiazza, Amie J Moyes, Thomas Gobbetti, Gareth S D Purvis, Daniela C F Salvatori, Nimesh S A Patel, Mauro Perretti, Adrian J Hobbs, Massimo Collino, Muhammad M Yaqoob, Christoph Thiemermann
Patients with CKD requiring dialysis have a higher risk of sepsis and a 100-fold higher mortality rate than the general population with sepsis. The severity of cardiac dysfunction predicts mortality in patients with sepsis. Here, we investigated the effect of preexisting CKD on cardiac function in mice with sepsis and whether inhibition of IκB kinase (IKK) reduces the cardiac dysfunction in CKD sepsis. Male C57BL/6 mice underwent 5/6 nephrectomy, and 8 weeks later, they were subjected to LPS (2 mg/kg) or sepsis by cecal ligation and puncture (CLP)...
May 6, 2016: Journal of the American Society of Nephrology: JASN
Nobuyuki Araki, Sonoko Misawa, Kazumoto Shibuya, Satoshi Ota, Takashi Oide, Asuka Kawano, Minako Beppu, Yukio Nakatani, Satoshi Kuwabara
BACKGROUND: Calciphylaxis is a syndrome consisting of vascular calcification, thrombosis, and skin necrosis. The syndrome develops often in chronic hemodialysis patients. However, there have been several case reports on calciphylaxis in patients with POEMS (polyneuropathy, organomegaly, endocrinopathy, M-protein, and skin changes) syndrome, a systemic disease associated with plasma cell dyscrasia and upregulation of vascular endothelial growth factor (VEGF). METHODS: In 76 POEMS patients and 86 age- and gender-matched disease controls, we studied abnormal small vessel calcification by computed tomography (CT) of the soft tissues...
2016: Orphanet Journal of Rare Diseases
Akshaar Brahmbhatt, Sanjay Misra
Arteriovenous fistulas (AVFs) are essential for patients and clinicians faced with end-stage renal disease (ESRD). While this method of vascular access for hemodialysis is preferred to others due to its reduced rate of infection and complications, they are plagued by intimal hyperplasia. The pathogenesis of intimal hyperplasia and subsequent thrombosis is brought on by uremia, hypoxia, and shear stress. These forces upregulate inflammatory and proliferative cytokines acting on leukocytes, fibroblasts, smooth muscle cells, and platelets...
March 2016: Seminars in Interventional Radiology
Stephan Harm, Franz Gabor, Jens Hartmann
Endotoxins are the major components of the outer membrane of most Gram-negative bacteria and are one of the main targets in inflammatory diseases. The presence of endotoxins in blood can provoke septic shock in case of pronounced immune response. Here we show in vitro inactivation of endotoxins by polymyxin B (PMB). The inflammatory activity of the LPS-PMB complex in blood was examined in vitro in freshly drawn blood samples. Plasma protein binding of PMB was determined by ultracentrifugation using membranes with different molecular cut-offs, and PMB clearance during dialysis was calculated after in vitro experiments using the AV1000S filter...
May 2016: Innate Immunity
Faezeh Khozeymeh, Mojgan Mortazavi, Navid Khalighinejad, Mehrdad Akhavankhaleghi, Milad Alikhani
BACKGROUND: Inflammatory cytokines such as interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) are elevated in end-stage renal disease (ESRD). IL-6 and TNF-α are toxins which deteriorate renal function, and their pathogenic role has been confirmed in cardiovascular and oral diseases. This study was designed to investigate the salivary levels of IL-6 and TNF-α in patients with ESRD undergoing hemodialysis (HD). MATERIALS AND METHODS: Twenty patients with ESRD who were treated with 4 h HD sessions, with low flux membrane were included in this cross-sectional study...
January 2016: Dental Research Journal
Mark R Lambie, James Chess, Angela M Summers, Paul Ford Williams, Nicholas Topley, Simon J Davies
BACKGROUND: Encapsulating peritoneal sclerosis (EPS) is an uncommon condition, strongly associated with a long duration of peritoneal dialysis (PD), which is itself associated with increased fibrosis in the peritoneal membrane. The peritoneal membrane is inflamed during PD and inflammation is often associated with fibrosis. We hypothesized that patients who subsequently develop EPS might have a more inflamed peritoneal membrane during PD. METHODS: We performed a nested, case-control study identifying all EPS cases in the UK arm of the GLOBAL Fluid Study and matching them by centre and duration of PD with two to three controls...
March 2016: Nephrology, Dialysis, Transplantation
Brijesh Sutariya, Dimple Jhonsa, Madhusudan N Saraf
Renal fibrosis is the usual outcome of an excessive accumulation of extracellular matrix (ECM) that frequently occurs in membranous and diabetic nephropathy. The result of renal fibrosis would be end-stage renal failure, which requires costly dialysis or kidney transplantation. Renal fibrosis typically results from chronic inflammation via production of several molecules, such as growth factors, angiogenic factors, fibrogenic cytokines, and proteinase. All of these factors can stimulate excessive accumulation of ECM components through epithelial to mesenchymal transition (EMT), which results in renal fibrosis...
February 2016: Immunopharmacology and Immunotoxicology
Nadezda Shershakova, Elena Baraboshkina, Sergey Andreev, Daria Purgina, Irina Struchkova, Oleg Kamyshnikov, Alexandra Nikonova, Musa Khaitov
BACKGROUND: Water-soluble form of fullerene C60 is a promising tool for the control of ROS-dependent inflammation including allergic diseases. Anti-inflammatory effects of C60 (nC60) aqueous dispersion were evaluated in the mouse models of atopic dermatitis using subcutaneous (SC) and epicutaneous (EC) applications during 50 days period. A highly stable nC60 was prepared by exhaustive dialysis of water-organic C60 solution against water, where the size and ζ-potential of fullerene nanoparticles are about 100 nm and -30 mV, respectively...
2016: Journal of Nanobiotechnology
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