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Acetate dialysis

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https://www.readbyqxmd.com/read/28738254/stereoselective-protein-binding-studies-of-2-2-hydroxypropanamido-benzoic-acid-enantiomers-in-rat-beagle-dog-and-human-plasma
#1
Qili Zhang, Shasha Li, Danlin Wang, Yunli Zhao, Zhiguo Yu
As the stereoselective plasma protein binding is an important factor for the differences in pharmacokinetic or pharmacodynamic properties of chiral drugs, we elucidated the binding of (R)-/(S)-HPABA to plasma protein. A UHPLC-MS/MS method was developed and validated to the quantitation and equilibrium dialysis method was applied to the separation of bound and unbound drugs. Protein binding reached equilibrium within 12h of incubation at 37°C. Liquid-liquid extraction with ethyl acetate was used for sample preparation...
June 23, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28707330/the-impact-of-dialysis-modality-and-membrane-characteristics-on-intradialytic-hypotension
#2
Samir Patel, Jochen G Raimann, Peter Kotanko
The risk of intradialytic hypotension (IDH) is determined by various factors, among them dialysis modality and dialyzer membrane. We conducted a literature search in PubMed on November 1, 2016 and selected relevant randomized controlled and cross-over trials, and prospective and retrospective cohort studies published in English that investigated the association between IDH and dialysis modality and membrane, respectively. This literature search revealed 669 publications on dialysis modality, 64 on dialysis membrane, and 24 on acetate/bicarbonate dialysate...
July 13, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28574225/three-stream-bicarbonate-based-hemodialysis-solution-delivery-system-revisited-with-an-emphasis-on-some-aspects-of-acid-base-principles
#3
REVIEW
Susie Q Lew, Orly F Kohn, Yuk-Lun Cheng, Carl M Kjellstrand, Todd S Ing
Hemodialysis patients can acquire buffer base (i.e., bicarbonate and buffer base equivalents of certain organic anions) from the acid and base concentrates of a three-stream, dual-concentrate, bicarbonate-based, dialysis solution delivery machine. The differences between dialysis fluid concentrate systems containing acetic acid versus sodium diacetate in the amount of potential buffering power were reviewed. Any organic anion such as acetate, citrate, or lactate (unless when combined with hydrogen) delivered to the body has the potential of being converted to bicarbonate...
June 2017: Artificial Organs
https://www.readbyqxmd.com/read/28528271/exploring-binding-characteristics-and-the-related-competition-of-different-protein-bound-uremic-toxins
#4
Olivier Deltombe, Henriette de Loor, Griet Glorieux, Annemieke Dhondt, Wim Van Biesen, Björn Meijers, Sunny Eloot
Little is known about potential differences in binding characteristics of protein-bound uremic toxins (PBUTs) in patients with chronic kidney disease (CKD) versus healthy controls. The question arises whether eventual differences are attributed to (i) the elevated levels of competing uremic toxins, and/or (ii) post-translational modifications of albumin. We evaluated the binding characteristics of hippuric acid (HA), indole-3-acetic acid (IAA), indoxyl sulfate (IS), and p-cresylsulfate (pCS) by deriving a binding curve in three distinct conditions: (i) serum from healthy controls (healthy serum), (ii) blank serum from hemodialysis patients (blank HD serum; i...
May 17, 2017: Biochimie
https://www.readbyqxmd.com/read/28401422/acetate-free-biofiltration-to-remove-fibroblast-growth-factor-23-in-hemodialysis-patients-a-pilot-study
#5
Valeria Cernaro, Silvia Lucisano, Valeria Canale, Annamaria Bruzzese, Daniela Caccamo, Giuseppe Costantino, Michele Buemi, Domenico Santoro
AIM: Serum levels of 32 kDa-phosphaturic hormone fibroblast growth factor 23 (FGF23) rise early in renal failure in order to keep phosphatemia within the normal range; however, this compensatory mechanism itself contributes to chronic kidney disease-mineral bone disorder. High FGF23 is also associated to left ventricular hypertrophy, vascular calcifications and thus increased cardiovascular risk. The aim of this pilot pre-post study was to evaluate the effects of a single hemodiafiltration session with acetate-free biofiltration (AFB) on FGF23 serum levels...
April 11, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28296160/changes-in-serum-bicarbonate-levels-caused-by-acetate-containing-bicarbonate-buffered-hemodialysis-solution-an-observational-prospective-cohort-study
#6
Mandip Panesar, Neal Shah, Sarosh Vaqar, Kaushik Ivaturi, Gregory Gudleski, Mary Muscarella, Judy Lambert, Winnie Su, Brian Murray
Fresenius Medical Care's NaturaLyte dialysate has been associated with increased risk of sudden cardiac death by causing metabolic alkalosis from its acetate content based on retrospective data using pre-dialysis bicarbonate levels only. The study objective was to measure inter/intra-dialytic changes in serum bicarbonate and degree of alkalosis conferred by varying concentrations of NaturaLyte bicarbonate dialysate. Thirty-nine hemodialysis patients were divided into four groups based on prescribed bicarbonate dialysate concentrations; Group 1 (N = 9): 30-32 mEq/L, Group 2 (N = 5): 33-34 mEq/L, Group 3 (N = 10): 35-36 mEq/L, Group 4 (N = 15): 37-40 mEq/L...
April 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28291581/a-real-world-cost-effectiveness-analysis-of-sevelamer-versus-calcium-acetate-in-korean-dialysis-patients
#7
Jang-Hee Cho, Hye Min Jang, Hee-Yeon Jung, Ji-Young Choi, Sun-Hee Park, Chan-Duck Kim, Chul Woo Yang, Dong-Chan Jin, Yong-Lim Kim
PURPOSE: Sevelamer, a noncalcium phosphate binder, has been shown to attenuate the progression of vascular calcification and improve survival in patients with chronic kidney disease undergoing dialysis compared with calcium-based binders. Using real-world data from a cohort study and the Health Insurance Review and Assessment Service database, we conducted a cost-effectiveness analysis comparing sevelamer with calcium acetate in dialysis patients from the perspective of the National Health Insurance Service in South Korea...
March 10, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28290369/effect-of-different-iron-compounds-on-rheological-and-technological-parameters-as-well-as-bioaccessibility-of-minerals-in-whole-wheat-bread
#8
Ana Paula Rebellato, Jéssica Bussi, Joyce Grazielle Siqueira Silva, Ralf Greiner, Caroline Joy Steel, Juliana Azevedo Lima Pallone
This study aimed at investigating the effect of iron compounds used in whole wheat flour (WWF) fortification, both on rheological properties of the dough and on bread technological quality. Furthermore, bioaccessibility of iron (Fe), zinc (Zn) and calcium (Ca) in the final breads was determined. Rheological properties (mainly dough development time, stability, mixing tolerance index, resistance to extension and ratio number) of the dough and the technological quality of bread (mainly oven spring and cut opening) were altered...
April 2017: Food Research International
https://www.readbyqxmd.com/read/28250815/a-process-for-producing-lignin-and-volatile-compounds-from-hydrolysis-liquor
#9
Tooran Khazraie, Yiqian Zhang, Dmitry Tarasov, Weijue Gao, Jacquelyn Price, Nikolai DeMartini, Leena Hupa, Pedram Fatehi
BACKGROUND: Hot water hydrolysis process is commercially applied for treating wood chips prior to pulping or wood pellet production, while it produces hydrolysis liquor as a by-product. Since the hydrolysis liquor is dilute, the production of value-added materials from it would be challenging. RESULTS: In this study, acidification was proposed as a viable method to extract (1) furfural and acetic acid from hot water hydrolysis liquor and (2) lignin compounds from the liquor...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28182039/hemodialysis-outcomes-and-practice-patterns-in-end-stage-renal-disease-experience-from-a-tertiary-care-hospital-in-kerala
#10
G R Lakshminarayana, L G Sheetal, A Mathew, R Rajesh, G Kurian, V N Unni
This study was planned to analyze the hemodialysis practice patterns from a tertiary care referral centre as there is very limited data from India. All patients of ESRD on maintenance hemodialysis (MHD) in dialysis unit at AIMS, Kochi, Kerala for a minimum period of 3 months were included. A total of 134 patients (M: F 2:1) with age of 20 to 84 years (Mean: 59.83; SD: 11.98) were studied. The most common causes of ESRD in study population were diabetic nephropathy (DN) (59.7%) followed by unclassified group (19...
January 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28064452/in-vitro-data-support-the-investigation-of-vinegar-as-an-antimicrobial-agent-for-pd-associated-pseudomonas-exit-site-infections
#11
Christine F Carson, Oliver Ash, Aron Chakera
Peritoneal dialysis exit site infections caused by Pseudomonas spp. are difficult to treat and can lead to peritonitis and/or modality failure. Effective alternative or adjunct non-antibiotic antimicrobial agents could improve treatment as well as reduce the use of antibiotics and contribute to a reduction in antibiotic selection pressure and the further development of antibiotic resistance. Vinegar is popularly promoted as a topical antimicrobial agent and has been recommended as an adjunct treatment for Pseudomonas exit site infections in PD patients...
February 2017: Nephrology
https://www.readbyqxmd.com/read/27951571/fundamental-characteristics-of-the-newly-developed-ata%C3%A2-membrane-dialyzer
#12
Takashi Sunohara, Toshiaki Masuda
BACKGROUND: Dialysis membranes are often made from synthetic polymers, such as polysulfone. However, membranes made from cellulose triacetate have superior biocompatibility and have been used since the 1980s. On-line hemodiafiltration treatment accompanied by massive fluid replacement is increasingly being used in Europe and Japan, but cellulose triacetate is not suitable for this treatment. SUMMARY: Our newly developed asymmetric triacetate membrane, the ATA™ membrane, substantially improved the filtration properties and blood compatibility because of the asymmetric structure and smooth surface of this cellulose acetate membrane...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/27900961/efficacy-and-safety-of-calcium-acetate-magnesium-carbonate-in-the-treatment-of-hyperphosphatemia-in-dialysis-patients
#13
Imed Helal, Hanene Elkateb, Hafedh Hedri, Malika Hajri, Fethi Ben Hamida
A phosphate binder combining calcium and magnesium offers an interesting therapeutic option to control hyperphosphatemia in dialysis patients. We investigated the effectiveness and tolerance of calcium acetate-magnesium carbonate (Ca-Mg). This is a 16-week prospective study including 16 dialysis patients. After an initial two-week washout period, serum phosphorus (sPho) ≥1.8 mmol/L, serum calcium (sCa) ≤2.6 mmol/L, and serum magnesium ≤1.5 mmol/L were the main inclusion criteria. The initial dose of Ca-Mg depended on sPho level and was titrated for every two weeks to have a sPho ≤ 1...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27878114/efficacy-of-biofilm-removal-from-hemodialysis-piping
#14
Yutaka Isakozawa, Heihachi Migita, Shingo Takesawa
BACKGROUND: Central dialysate fluid delivery systems (CDDS) are used by dialysis centers in Japan, and although these systems are effective at delivering dialysate, they have a complex piping network with numerous sites where contamination can develop. In Japan, cleaning disinfectants have been clinically evaluated based on endotoxin levels and bacterial counts, but there have been no published studies evaluating the biofilm removal efficacy of these agents at the electron microscope level...
September 2016: Nephro-urology Monthly
https://www.readbyqxmd.com/read/27859427/citrate-buffered-dialysis-solution-citrasate-allows-avoidance-of-anticoagulation-during-intermittent-hemodiafiltration-at-the-cost-of-decreased-performance-and-systemic-biocompatibility
#15
Pavlina Richtrova, Jan Mares, Lukas Kielberger, Ladislav Trefil, Jaromir Eiselt, Tomas Reischig
Reportedly, citrate-based dialysis solution enables heparin dose tapering or even complete exclusion, particularly in postdilution hemodiafiltration (HDF). The aim of the study was to verify this strategy in predilution setting and to assess its short-term safety, efficacy, and biocompatibility. Ten regular hemodialysis patients were assigned to predilution HDF on acetate- and citrate-based dialysis solutions (0.8 mmol/l trisodium citrate) at random order. Acetate HDF was performed using routine dose of heparin while citrate HDF was heparin free...
August 2017: Artificial Organs
https://www.readbyqxmd.com/read/27615161/adherence-rates-to-ferric-citrate-as-compared-to-active-control-in-patients-with-end-stage-kidney-disease-on-dialysis
#16
Diana Jalal, Molly McFadden, Jamie P Dwyer, Kausik Umanath, Erwin Aguilar, Yoram Yagil, Barbara Greco, Mohammed Sika, Julia B Lewis, Tom Greene, Simin Goral
INTRODUCTION: Oral phosphate binders are the main stay of treatment of hyperphosphatemia. Adherence rates to ferric citrate, a recently approved phosphate binder, are unknown. METHODS: We conducted a post-hoc analysis to evaluate whether adherence rates were different for ferric citrate vs. active control in 412 subjects with end stage kidney disease (ESKD) who were randomized to ferric citrate vs. active control (sevelamer carbonate and/or calcium acetate). Adherence was defined as percent of actual number of pills taken to total number of pills prescribed...
April 2017: Hemodialysis International
https://www.readbyqxmd.com/read/27571344/simple-means-for-fractionating-protein-based-on-isoelectric-point-without-ampholyte
#17
Huang Chen, Zaifang Zhu, Haiqing Yu, Joann Juan Lu, Shaorong Liu
In this paper, we develop a simple electrokinetic means for fractionating protein samples according to their pI values without using ampholytes. The method uses inexpensive equipment, and its consumables are primarily ammonium acetate buffers. A key component of its apparatus is a dialysis membrane interface that eliminates electrolysis-caused protein oxidation/reduction and constrains proteins in the desired places. We demonstrate its feasibility for fractionating standard proteins and real-world samples. With the elimination of ampholytes, we can analyze the fractionated proteins directly by a matrix assisted laser desorption/ionization time-of-flight mass spectrometer...
September 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27516141/evidence-based-criteria-for-the-choice-and-the-clinical-use-of-the-most-appropriate-lock-solutions-for-central-venous-catheters-excluding-dialysis-catheters-a-gavecelt-consensus
#18
REVIEW
Mauro Pittiruti, Sergio Bertoglio, Giancarlo Scoppettuolo, Roberto Biffi, Massimo Lamperti, Alberto Dal Molin, Nicola Panocchia, Nicola Petrosillo, Mario Venditti, Carla Rigo, Enrico DeLutio
BACKGROUND: The most appropriate lock solution for central venous access devices is still to be defined. GAVeCeLT - the Italian group for venous access devices - has developed a consensus on the evidence-based criteria for the choice and the clinical use of the most appropriate lock solution for central venous catheters (excluding dialysis catheters). METHOD: After the constitution of a panel of experts, a systematic collection and review of the literature has been performed, focusing on clinical studies dealing with lock solutions used for prevention of occlusion (heparin, citrate, urokinase, recombinant tissue plasminogen activator [r-TPA], normal saline) or for prevention of infection (citrate, ethanol, taurolidine, ethylene-diamine-tetra-acetic acid [EDTA], vancomycin, linezolid and other antibiotics), in both adults and in pediatric patients...
November 2, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27481742/acetate-buffered-crystalloid-fluids-current-knowledge-a-systematic-review
#19
REVIEW
Carmen A Pfortmueller, Edith Fleischmann
INTRODUCTION: The concept of fluid resuscitation with balanced solutions containing acetate is relatively new. The knowledge about acetate mostly originates from nephrological research, as acetate was primarily used as a dialysis buffer where much higher doses of acetate are infused. The aim of this review is to give an overview of the advantages and disadvantages of an acetate-buffered crystalloid fluid when compared with other crystalloid infusates. METHODS: We report trials with the primary object of comparing an acetate-buffered infusion solute to another crystalloid infusate...
October 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27471673/preparation-and-evaluation-of-a-phospholipid-based-injectable-gel-for-the-long-term-delivery-of-leuprolide-acetaterrh
#20
Danhong Long, Tao Gong, Zhirong Zhang, Rui Ding, Yao Fu
A phospholipid-based injectable gel was developed for the sustained delivery of leuprolide acetate (LA). The gel system was prepared using biocompatible materials (SPME), including soya phosphatidyl choline (SPC), medium chain triglyceride (MCT) and ethanol. The system displayed a sol state with low viscosity in vitro and underwent in situ gelation in vivo after subcutaneous injection. An in vitro release study was performed using a dialysis setup with different release media containing different percentages of ethanol...
July 2016: Acta Pharmaceutica Sinica. B
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