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Salvatore Citarda, Roula Galland, Jean-Michel Poux, Abdallah Guerraoui, Patrick Hallonet, Marie Lino-Daniel, Pascale Thivend, Agnès Caillette-Beaudoin
Early information about the kidney transplant is recommended to begin quickly the process of registration on the kidney transplantation waiting list, even for the patients not dialyzed at stage V of the renal insufficiency. It is a strategic choice for the patient care. From the arrival of all the patients in our center of dialysis, a systematic evaluation of the access to the kidney transplant waiting list is organized thanks to a clinical pathway. The impact of this new organization was estimated at 18 months with regard to the information about the kidney transplant transmitted to the patient, of the time required for the assessment of pre-kidney transplant evaluation, and of putting in contraindication...
October 19, 2016: Néphrologie & Thérapeutique
Beatriz Gomez Gomez, M Teresa Perez-Corona, Yolanda Madrid
Zinc bioaccessibility from infant formula was estimated by in vitro methods (solubility and dialyzability) and size-exclusion chromatography (SEC) coupled to inductively coupled plasma-mass spectrometry (ICP-MS). Infant formula samples were first characterized in terms of Zn bound to lipids and proteins and Zn distribution in the aqueous soluble protein fraction. We found that Zn is not incorporated into the lipid fraction of the samples, being mainly associated with the protein fraction (around 100%). Fractionation of Zn-containing proteins in the soluble protein fraction was achieved by SEC-ICP-MS after performing protein extraction with a solution of 100 mM (pH 6...
October 19, 2016: Journal of Dairy Science
Hyun Jung Gye, Toyohiko Nishizawa
Nervous necrosis virus (NNV) belongs to genus Betanodavirus (family Nodaviridae). It is highly pathogenic to various marine fishes. In the present study, cultured NNV suspension was placed in dialysis tube at molecular weight cut off (MWCO) of 10(6) and dialyzed against Dulbecco's phosphate buffered saline (D-PBS), 15mM Tris-HCl (pH 8.0), or deionized water (DIW) for 14days followed by anion-exchange chromatography. Infectivity titers of NNV suspensions were stable during dialyses. However, the antigenicity of NNV suspension was decreased to 2...
October 6, 2016: Journal of Virological Methods
Juergen Prattes, Daniel Schneditz, Florian Prueller, Eva Jaindl, Notburga Sauseng, Martin Hoenigl, Gernot Schilcher, Robert Krause
BACKGROUND: The aim of this combined in-vitro and in-vivo study was to investigate whether state of the art dialysis modalities produce false positive serum 1,3-ß-d-Glucan (BDG) levels. METHODS: Dialysis fluid for simulated dialysis treatments was spiked with BDG from different sources. Samples were taken from the dialysate and dialyzer blood compartments at various time points. In addition, serum samples were obtained in three groups of patients without invasive fungal disease: a...
October 4, 2016: Journal of Infection
Yasuyuki Maki, Kazuya Furusawa, Toshiaki Dobashi, Yasunobu Sugimoto, Katsuzo Wakabayashi
Curdlan, a microbial polysaccharide, forms a multi-layered gel consisting of four layers with different turbidity when its alkaline solution is dialyzed against aqueous solutions containing Ca(2+) (diffusion-set gel). The present study clarified the microstructure of each layer of the diffusion-set Curdlan gel by small-angle X-ray scattering (SAXS) and small-angle light scattering (SALS). The SAXS data showed that Curdlan chains assume a helical ordered conformation in the gel and that the gel consists of the fibrils formed by the association of Curdlan chains and the aggregates of fibrils...
January 2, 2017: Carbohydrate Polymers
Anna Machowska, Jia Sun, Abdul Rashid Qureshi, Naohito Isoyama, Paul Leurs, Björn Anderstam, Olof Heimburger, Peter Barany, Peter Stenvinkel, Bengt Lindholm
BACKGROUND: Circulating advanced glycated end-products (AGEs) including pentosidine accumulating in chronic kidney disease (CKD) patients due to retention and increased formation are thought to contribute to cardiovascular disease (CVD). Here we evaluated factors linked to increased plasma pentosidine and its association with mortality in patients with different stages of CKD and undergoing different treatments. METHODS: Plasma pentosidine, biomarkers of inflammation, oxidative stress and nutritional status were investigated in CKD 1-2 (n = 37), CKD 3-4 (n = 54), CKD 5 non-dialyzed (CKD5-ND; n = 386), peritoneal dialysis (PD; n = 74) and hemodialysis (HD; n = 195) patients...
2016: PloS One
Foroogh Sabzghabaei, Seyed Alireza Heydariezade, Rashin S Joodat
INTRODUCTION: Hemodialysis (HD) has impact on the cardiovascular system by inducing changes in the characteristics of body fluids such as PH, temperature and electrolyte concentrations. In the previous studies, prolongation of the QT interval and increase of QT dispersion have been reported during HD sessions. These changes were more significant while using solutions with less potassium and higher bicarbonate during dialysis. OBJECTIVES: The aim of our study was to investigate the effects of different potassium and bicarbonate concentrations on electrocardiography (ECG) parameters and the electrochemical balance of cell membranes...
2016: Journal of Renal Injury Prevention
Thomas M Langer, Suzanne E Neumueller, Emma Crumley, Nicholas J Burgraff, Sawan Talwar, Matthew Robert Hodges, Lawrence G Pan, Hubert V Forster
Unilateral dialysis of the broad spectrum muscarinic receptor antagonist atropine (50 mM) into the ventral respiratory column (VRC; including the pre-Bӧtzinger Complex region) of awake goats increased pulmonary ventilation (V̇I) and breathing frequency (f), conceivably due to local compensatory increases in serotonin (5-HT) and substance P (SP) measured in effluent mock cerebral spinal fluid (mCSF). In contrast, unilateral dialysis of a triple cocktail of antagonists to muscarinic (atropine; 5 mM), neurokinin-1 (NK-1) and 5-HT2A receptors does not alter V̇I or f, but increases local SP...
September 29, 2016: Journal of Applied Physiology
Fabio Rosario Salerno, Grace Parraga, Christopher William McIntyre
Dyspnea is one of the most common symptoms associated with CKD. It has a profound influence on the quality of life of CKD patients, and its underlying causes are often associated with a negative prognosis. However, its pathophysiology is poorly understood. While hemodialysis may address fluid overload, it often does not significantly improve breathlessness, suggesting multiple and co-existing alternative issues exist. The aim of this article is to discuss the main pathophysiologic mechanisms and the most important putative etiologies underlying dyspnea in CKD patients...
September 28, 2016: Seminars in Dialysis
Zbigniew Heleniak, Magdalena Cieplińska, Tomasz Szychliński, Dymitr Rychter, Kalina Jagodzińska, Alicja Kłos, Izabela Kuźmiuk, Marzena Jakimowicz Tylicka, Leszek Tylicki, Bolesław Rutkowski, Alicja Dębska-Ślizień
AIMS: Nonsteroidal anti-inflammatory drugs (NSAIDs) are the cornerstone of pain management. There are no detailed data on NSAIDs use in Poland, especially in patients with chronic kidney disease (CKD). The aim of this study was to evaluate the frequency, circumstances, and causes of NSAIDs use as well as knowledge of their side-effects in patients with CKD. METHOD: This cross-sectional study was conducted in 972 individuals with CKD, enrolled in a written survey originally developed by the authors...
September 27, 2016: Journal of Nephrology
Nam Ah Kim, In Bok An, Hye Seong Lim, Sang In Yang, Seong Hoon Jeong
A newly developed hybrid Fc (hyFc) is a non-immunogenic and non-cytolytic Fc with intact Ig structure derived from human IgD and IgG4. It is fused with the human growth hormone (GXD-9) and was evaluated by various biophysical techniques. Two thermal transitions were evident by DSC, reflecting the unfolding of IgG4 and the conjugated protein. The highest Tm of the initial GXD-9 was 68.17°C and the Tm of the two domains were around 66°C and 70°C. Although Tm increased with decreasing concentration, which reflects increasing conformational stability, aggregation issues were still observed by DLS...
September 19, 2016: International Journal of Pharmaceutics
Heike A Hildebrandt, Vincent Kreienkamp, Sabine Gent, Philipp Kahlert, Gerd Heusch, Petra Kleinbongard
Although remote ischemic pre-conditioning (RIPC) reduced infarct size in animal experiments and proof-of-concept clinical trials, recent phase III trials failed to confirm cardioprotection during cardiac surgery. Here, we characterized the kinetic properties of humoral factors that are released after RIPC, as well as the signal transduction pathways that were responsible for cardioprotection in an ex vivo model of global ischemia reperfusion injury. Venous blood from 20 healthy volunteers was collected at baseline and 5 min, 30 min, 1 h, 6 h, and daily from 1 to 7 days after RIPC (3 × 5/5 min upper-limb ischemia/reperfusion)...
January 2016: JACC. Basic to Translational Science
Gohki Hasegawa, Shuichi Tsuruoka, Kentaro Ushijima, Akimitsu Maeda, Tokie Hayasaka, Tetsuo Saito, Kazuhiro Harada, Akio Fujimura
The aim of this study was to evaluate the profile of dialyzability of an oral penem antibiotic, faropenem (FRPM), in hemodialysis (HD) patients with infections. Eight patients took one tablet of FRPM (200 mg) every 12 h during an inter-dialysis period, and another tablet at 1-5 h before the beginning of the HD session. Blood samples were obtained during the HD session (3-4 h). Plasma FRPM concentrations in the arterial side were 4.8 ± 2.5 and 2.8 ± 1.0 µg/mL before and at the end of HD session, respectively, which are above the 50% minimal inhibitory concentrations of FRPM against the major pathogen (0...
September 15, 2016: Therapeutic Apheresis and Dialysis
Teresa Kurzawa, Aleksander Owczarek, Joanna K Strzelczyk, Karolina Gołąbek, Andrzej Wiczkowski
BACKGROUND: Chronic renal disease constitutes a serious worldwide clinical problem. An important issue arising early during the treatment of renal failure is anemia. Patients in the end-stage of renal disease chronically treated with hemodialysis frequently suffer from anemia with iron deficiency. OBJECTIVES: The aim of the study was to evaluate the usefulness of determining the reticulocyte hemoglobin content and serum concentration of soluble transferrin receptor in the detection of anemia caused by iron deficiency in comparison with the classic markers of iron circulation in serum in chronic dialysis patients with ESRD...
May 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Zeliang Zhuang, Tao Jiang, Jiaping Lin, Liang Gao, Chaoying Yang, Liquan Wang, Chunhua Cai
The self-organization of pre-assembled aggregates is an efficient stepwise strategy for fabricating nanostructures with a second level of hierarchy. Herein, we report that anisotropic spindle-like micelles, self-assembled from polypeptide graft copolymers with rigid backbones, can serve as ideal pre-assembled subunits for constructing one-dimensional materials with hierarchical structures. By adding organic solvents and dialyzing against water, reactive points can be generated at the ends of the spindle-like micelles, which subsequently drive the anisotropic micelles to grow as rods in a chain and eventually self-assemble into hierarchical nanowires in a stepwise manner...
September 26, 2016: Angewandte Chemie
M Miler, N Nikolac, D Segulja, S Kackov Maslac, I Celap, K Altabas, S Sefer, A M Simundic
PURPOSE: Low-grade chronic inflammation is present in patients on peritoneal dialysis (PD) and in metabolic syndrome (MS). Due to possible greater endothelial changes in dialyzed patients, inflammatory response and oxidative stress are probably stronger in patients on PD. The objective of the study was to investigate possible in between adipokines, inflammatory, endothelial and oxidative stress markers between MS patients and patients on PD. METHODS: Concentrations of adipokines (leptin, resistin), inflammatory markers [interleukin-6 (IL-6), soluble tumor necrosis factor alpha receptor (sTNF-R), myeloperoxidase (MPO), monocyte chemoattractant protein 1 (MCP-1)] and endothelial markers [soluble intracellular adhesion molecule-1 (sICAM-1), soluble CD40 ligand (sCD40L)] were determined in 55 MS patients and 18 patients on PD, with flow cytometry, and visfatin concentration was measured with ELISA...
September 6, 2016: Journal of Endocrinological Investigation
Monique J Cormier, Simon Desmeules, Maude St-Onge, Marc Ghannoum
We describe the case of a 52-year-old man who presented after having ingested an unknown quantity of phenytoin. Peak phenytoin concentration was 51.2 mg/L (therapeutic range 10-20 mg/L). Five days after admission, the patient became comatose and was intubated. Because of persistent toxic phenytoin levels and unchanged clinical status for 12 days, hemodialysis (HD) was prescribed to enhance elimination of phenytoin. HD was performed using a Gambro Theralite(TM) filter (Baxter International Inc., Deerfield, USA), a high cut-off filter that allows the removal of molecules of up to 45 kDa...
September 6, 2016: Hemodialysis International
W C De Mello, L J Dell'Itallia, J Varagic, C M Ferrario
In the present work, the influence of intracellular injection of angiotensin-(1-12) [Ang-(1-12)] on the electrical properties of the intact left ventricle of Wistar Kyoto rats was investigated with electrophysiological methods. Particular attention was given to the role of chymostatin on the effect of the peptide. The results indicated that intracellular administration of the peptide elicited a depolarization of the surface cell membrane and an increase of duration of the action potential followed by the generation of early afterdepolarizations...
November 2016: Molecular and Cellular Biochemistry
Boaz Gedaliahu Samolsky Dekel, Gabriele Donati, Alessio Vasarri, Anna Laura Croci Chiocchini, Alberto Gori, Giuseppe Cavallari, Gianfranco Di Nino, Laura Mercolini, Michele Protti, Roberto Mandrioli, Rita Maria Melotti, Gaetano La Manna
OBJECTIVES: Opioids are the preferred analgesic drugs to treat severe chronic pain conditions among dialysis patients; however, knowledge about their dialyzability features is limited. Oxycodone is increasingly used for the treatment of chronic pain conditions as oral controlled release (CR) tablets; however, evidence about this drug and its metabolites' dialyzability is lacking. METHODS: We assessed, during 4-hour dialysis sessions, the effect of standard hemodialysis (HD) and online hemodiafiltration (HDF) methods on the plasma concentration of oxycodone and its metabolites in n = 20 chronic pain patients with end-stage renal disease who were stably treated with oral CR oxycodone...
September 2, 2016: Pain Practice: the Official Journal of World Institute of Pain
Md Rashedul Islam, Dave B Oomah, Moussa S Diarra
Studies on effects of cranberry products in animals, especially in chickens, are very scarce or even lacking. This study investigated the immunomodulatory effect of high molecular weight non-dialyzable materials (NDMs) of cranberry extract. The in vitro antioxidant and anti-inflammatory activities were investigated. The ability of NDMs (0, 1, 2, or 4 mg/mL) to enhance phagocytic activities was also evaluated using chicken heterophils (CHEs) against Staphylococcus aureus Furthermore, a broiler model was used to determine the effect of NDMs on the humoral immune response...
September 1, 2016: Poultry Science
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