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https://www.readbyqxmd.com/read/28193826/the-nlrp3-inflammasome-has-a-critical-role-in-peritoneal-dialysis-related-peritonitis
#1
Nicolas Hautem, Johann Morelle, Amadou Sow, Cyril Corbet, Olivier Feron, Eric Goffin, François Huaux, Olivier Devuyst
Bacterial peritonitis remains the main cause of technique failure in peritoneal dialysis (PD). During peritonitis, the peritoneal membrane undergoes structural and functional alterations that are mediated by IL-1β The NLRP3 inflammasome is a caspase-1-activating multiprotein complex that links sensing of microbial and stress products to activation of proinflammatory cytokines, including IL-1β The potential roles of the NLRP3 inflammasome and IL-1β in the peritoneal membrane during acute peritonitis have not been investigated...
February 13, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28127437/effect-of-extracorporeal-cytokine-removal-on-vascular-barrier-function-in-a-septic-shock-patient
#2
Sascha David, Kristina Thamm, Bernhard M W Schmidt, Christine S Falk, Jan T Kielstein
BACKGROUND: Sepsis and septic shock are major healthcare problems, affecting millions of individuals around the world each year. Pathophysiologically, septic multiple organ dysfunction (MOD) is a life-threatening condition caused by an overwhelming systemic inflammatory response of the host's organism to an infection. We experimentally tested if high circulating cytokine levels might increase vascular permeability-a critical hallmark of the disease-and if this phenomenon can be reversed by therapeutic cytokine removal (CytoSorb®) in an exemplary patient...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28098099/the-evaluation-of-the-relationship-between-serum-levels-of-interleukin-6-and-interleukin-10-and-metabolic-acidosis-in-hemodialysis-patients
#3
Narges Sadat Zahed, Saghar Chehrazi
Chronic kidney disease is defined as progressive kidney dysfunction. The levels of various cytokines increase in hemodialysis (HD) patients. High levels of interleukins (ILs) and presence of metabolic acidosis are described as independent risk factors for morbidity and mortality in these patients. This study was designed to evaluate the relationship between IL-6 and IL-10 and serum bicarbonate and metabolic acidosis in HD patients. In this analytical crosssectional study, patients referred to the HD units of Loghman Hakim and Shahid Ashrafi Esfahani Hospitals were randomly selected...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28096440/tnf-signaling-in-peritoneal-mesothelial-cells-pivotal-role-of-cflipl
#4
Willie M Lüdemann, Danijela Heide, Lars Kihm, Martin Zeier, Peter Scheurich, Vedat Schwenger, Julia Ranzinger
♦ Background: Peritoneal dialysis (PD) coincides with high concentrations of proinflammatory cytokines, such as tumor necrosis factor (TNF), in the peritoneal cavity. During treatment, chronic inflammatory processes lead to damage of the peritoneal membrane and a subsequent ultrafiltration failure. Human peritoneal mesothelial cells (HPMCs) play a central role as mediators and targets of PD-related inflammatory changes. Although TNF Receptor 1 (TNFR1) is expressed in high numbers on the cells, TNF-induced apoptosis is inhibited...
January 17, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28065517/peritoneal-macrophage-heterogeneity-is-associated-with-different-peritoneal-dialysis-outcomes
#5
Chia-Te Liao, Robert Andrews, Leah E Wallace, Mohd Wajid A Khan, Ann Kift-Morgan, Nicholas Topley, Donald J Fraser, Philip R Taylor
Peritonitis remains the major obstacle for the maintenance of long-term peritoneal dialysis and dysregulated host peritoneal immune responses may compromise local anti-infectious defense, leading to treatment failure. Whilst, tissue mononuclear phagocytes, comprising macrophages and dendritic cells, are central to a host response to pathogens and the development of adaptive immune responses, they are poorly characterized in the human peritoneum. Combining flow cytometry with global transcriptome analysis, the phenotypic features and lineage identity of the major CD14(+) macrophage and CD1c(+) dendritic cell subsets in dialysis effluent were defined...
January 5, 2017: Kidney International
https://www.readbyqxmd.com/read/27994478/dialysis-related-amyloidosis-challenges-and-solutions
#6
REVIEW
R Scarpioni, M Ricardi, V Albertazzi, S De Amicis, F Rastelli, L Zerbini
Amyloidosis refers to the extracellular tissue deposition of fibrils composed of low-molecular-weight subunits of a variety of proteins. These deposits may result in a wide range of clinical manifestations depending upon their type, location, and the amount of deposition. Dialysis-related amyloidosis is a serious complication of long-term dialysis therapy and is characterized by the deposition of amyloid fibrils, principally composed of β2 microglobulins (β2M), in the osteoarticular structures and viscera...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27988212/natural-regulatory-t-cells-from-patients-with-end-stage-renal-disease-can-be-used-for-large-scale%C3%A2-generation-of-highly-suppressive-alloantigen-specific-tregs
#7
Nicolle H R Litjens, Karin Boer, Joke M Zuijderwijk, Mariska Klepper, Annemiek M A Peeters, Wenda Verschoor, Rens Kraaijeveld, Michiel G H Betjes
Natural occurring regulatory T cells (nTregs) have the potential to offer a targeted approach of immunosuppression and are the cell type of interest for inducing tolerance in kidney transplantation. End-stage renal disease (ESRD) profoundly affects the composition and function of circulating T cells but little is known with respect to how nTreg potential is affected. To address this, nTregs of patients with ESRD (on dialysis or not) and healthy individuals were isolated, expanded using allogeneic mature monocyte-derived dendritic cells followed by anti-CD3/anti-CD28-coated beads and the different nTregs were extensively characterized by the demethylation status of the Treg-specific demethylated region within FOXP3 and expression of typical nTreg markers...
December 14, 2016: Kidney International
https://www.readbyqxmd.com/read/27964722/hyperbranched-polyglycerol-is-superior-to-glucose-for-long-term-preservation-of-peritoneal-membrane-in-a-rat-model-of-chronic-peritoneal-dialysis
#8
Caigan Du, Asher A Mendelson, Qiunong Guan, Ghida Dairi, Irina Chafeeva, Gerald da Roza, Jayachandran N Kizhakkedathu
BACKGROUND: Replacing glucose with a better biocompatible osmotic agent in peritoneal dialysis (PD) solutions is needed in PD clinic. We previously demonstrated the potential of hyperbranched polyglycerol (HPG) as a replacement for glucose. This study further investigated the long-term effects of chronic exposure to HPG as compared to a glucose-based conventional PD solution on peritoneal membrane (PM) structure and function in rats. METHODS: Adult male Wistar rats received once-daily intraperitoneal injection of 10 mL of HPG solution (1 kDa, HPG 6%) compared to Physioneal™ 40 (PYS, glucose 2...
December 13, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27932108/donor-specific-antibodies-after-starting-hemodialysis-in-nonrenal-solid-organ-transplant-recipients-role-of-th17
#9
M L Agüera, A R Hurtarte, M A Álvarez de Lara, M D Aumente, A Carmona, J Carracedo, P Aljama, A Rodríguez Benot
BACKGROUND: Nonrenal transplantation could cause a progressive deterioration in renal function until need dialysis. It is important to know if these patients increased their risk to develop de novo donor-specific anti-HLA antibody (DSA) after starting hemodialysis (HD) and if so, try to find the mechanism. MATERIAL AND METHODS: In this double-phase study, we first analyzed the incidence of development DSA in nonrenal transplant recipients after starting HD by a retrospective study...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27859980/isolation-of-bacterial-dna-followed-by-sequencing-and-differing-cytokine-response-in-peritoneal-dialysis-effluent-help-in-identifying-bacteria-in-culture-negative-peritonitis
#10
Narayan Prasad, Kamini Singh, Amit Gupta, Kashi Nath Prasad
BACKGROUND: The treatment of peritoneal dialysis related culture negative peritonitis is empirical which increases the cost of therapy and moreover antibiotic resistance. We aimed the study to isolate bacterial DNA from PD effluent and indentify bacteria causing peritonitis in culture negative situations. We have also studied the cytokine response with different bacteria causing peritonitis. METHODS: We have isolated bacterial DNA from PD effluent of culture negative and culture positive peritonitis patients...
November 16, 2016: Nephrology
https://www.readbyqxmd.com/read/27843814/dimeric-and-trimeric-fusion-proteins-generated-with-fimbrial-adhesins-of-uropathogenic-escherichia-coli
#11
Víctor M Luna-Pineda, Juan Pablo Reyes-Grajeda, Ariadnna Cruz-Córdova, Zeus Saldaña-Ahuactzi, Sara A Ochoa, Carmen Maldonado-Bernal, Vicenta Cázares-Domínguez, Leticia Moreno-Fierros, José Arellano-Galindo, Rigoberto Hernández-Castro, Juan Xicohtencatl-Cortes
Urinary tract infections (UTIs) are associated with high rates of morbidity and mortality worldwide, and uropathogenic Escherichia coli (UPEC) is the main etiologic agent. Fimbriae assembled on the bacterial surface are essential for adhesion to the urinary tract epithelium. In this study, the FimH, CsgA, and PapG adhesins were fused to generate biomolecules for use as potential target vaccines against UTIs. The fusion protein design was generated using bioinformatics tools, and template fusion gene sequences were synthesized by GenScript in the following order fimH-csgA-papG-fimH-csgA (fcpfc) linked to the nucleotide sequence encoding the [EAAAK]5 peptide...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27837150/il-6-trans-signaling-links-inflammation-with-angiogenesis-in-the-peritoneal-membrane
#12
Rusan Catar, Janusz Witowski, Nan Zhu, Christian Lücht, Alicia Derrac Soria, Javier Uceda Fernandez, Lei Chen, Simon A Jones, Ceri A Fielding, Andras Rudolf, Nicholas Topley, Duska Dragun, Achim Jörres
Vascular endothelial growth factor (VEGF) is implicated in the peritoneal membrane remodeling that limits ultrafiltration in patients on peritoneal dialysis (PD). Although the exact mechanism of VEGF induction in PD is unclear, VEGF concentrations in drained dialysate correlate with IL-6 levels, suggesting a link between these cytokines. Human peritoneal mesothelial cells (HPMCs), the main source of IL-6 and VEGF in the peritoneum, do not bear the cognate IL-6 receptor and are thus unable to respond to classic IL-6 receptor signaling...
November 11, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27814627/oxidative-dna-and-mitochondrial-dna-change-in-patients-with-sle
#13
Hui-Ting Lee, Tsai-Hung Wu, Chen-Sung Lin, Chyou-Shen Lee, Siao-Cian Pan, Deh-Ming Chang, Yau-Huei Wei, Chang-Youh Tsai
We evaluated plasma IL-10, IFN-alpha, IL-23, IFN-gamma, IP-10, MCP-1, 8-OHdG, leukocyte mtDNA, serum anti-dsDNA antibodies and disease activity index (SLEDAI) in SLE patients. 93 patients (35 nephritis, 4 under dialysis, 5 under rituximab) and 50 healthy controls were recruited. Compared with healthy controls, SLE patients had higher IL-10, IFN-alpha, IL-23, IFN-gamma, IP-10 and MCP-1 (p<0.05). High IFN-alpha (p=0.031) and IP-10 (p=0.026) correlated with high SLEDAI; high IFN-alpha (p<0.001), IL-23 (p=0...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27811451/expressions-of-macrophage-migration-inhibitory-factor-in-patients-with-chronic-kidney-disease
#14
Y Liu, X Zhang, G Liu, J Huang, Y Pan, Z Hu
CONTEXT: Uremic cardiomyopathy is a risk factor of end-stage renal disease (ESRD) and is responsible for high mortality rates and increased left ventricular mass index (LVMI). Macrophage migration inhibitory factor (MIF) promotes inflammation and is an important factor in uremic cardiomyopathy. AIMS: The aim of this study is to investigate the effects of serum macrophage MIF on myocardial hypertrophy in ESRD patients and to examine the relation of this factor to clinical characteristics...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27783636/online-haemodiafiltration-improves-inflammatory-state-in-dialysis-patients-a-longitudinal-study
#15
Ines Rama, Ines Llaudó, Pere Fontova, Gema Cerezo, Carlos Soto, Casimiro Javierre, Miguel Hueso, Nuria Montero, Alberto Martínez-Castelao, Juan Torras, Josep M Grinyó, Josep M Cruzado, Nuria Lloberas
BACKGROUND: Patients undergoing conventional hemodialysis (C-HD) present a greater immuno-inflammatory state probably related to uremia, sympathetic nervous system (SNS) activation and /or membrane bioincompatibility, which could improve with a technique-switching to online hemodiafiltration (OL-HD). The antigen-independent pathway activation of this modified immunologic state turns dendritic cells (DC) into an accurate cell model to study these patients. The aim of this study is to further evaluate the immune-inflammatory state of patients in C-HD assessed by DC maturation...
2016: PloS One
https://www.readbyqxmd.com/read/27768727/addition-of-alanyl-glutamine-to-dialysis-fluid-restores-peritoneal-cellular-stress-responses-a-first-in-man-trial
#16
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
https://www.readbyqxmd.com/read/27663212/comparison-of-serum-levels-of-il-18-in-peripheral-blood-of-patients-with-type-ii-diabetes-with-nephropathy-clinical-protests-and-patients-with-type-ii-diabetes-without-nephropathy-clinical-protests
#17
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
https://www.readbyqxmd.com/read/27515210/hypothesis-phytate-is-an-important-unrecognised-nutrient-and-potential-intravenous-drug-for-preventing-vascular-calcification
#18
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
https://www.readbyqxmd.com/read/27496454/prognostic-value-of-proinflammatory-markers-in-patients-after-kidney-transplantation-in-relation-to-the-presence-of-diabetes
#19
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
https://www.readbyqxmd.com/read/27413076/premature-t-cell-senescence-in-pediatric-ckd
#20
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...
January 2017: Journal of the American Society of Nephrology: JASN
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