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Peripheral ultrafiltration

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
Parasuraman Aiya Subramani, R Vydyanath Narasimha, Ramalakshmi Balasubramanian, Venkata Ramireddy Narala, M R Ganesh, R Dinakaran Michael
Number of exotoxins like haemolysin, leukocidin, aerolysin etc. were reported from Aeromonas hydrophila. In this study, we report the haemolytic and cytotoxic effect of A. hydrophila culture supernatant (CS) that is specifically inhibited by lactose and also by serum and mucus of Nile tilapia (Oreochromis niloticus). Hence, we assume the presence of a secreted lectin in the CS. CS is toxic to peripheral blood leukocytes (PBL) of O. niloticus as revealed by MTT assay and by flow cytometry. DNA laddering assay indicates that CS causes necrosis to PBL...
October 1, 2016: Fish & Shellfish Immunology
Claudia Torino, Luna Gargani, Rosa Sicari, Krzysztof Letachowicz, Robert Ekart, Danilo Fliser, Adrian Covic, Kostas Siamopoulos, Aristeidis Stavroulopoulos, Ziad A Massy, Enrico Fiaccadori, Alberto Caiazza, Thomas Bachelet, Itzchak Slotki, Alberto Martinez-Castelao, Marie-Jeanne Coudert-Krier, Patrick Rossignol, Faikah Gueler, Thierry Hannedouche, Vincenzo Panichi, Andrzej Wiecek, Giuseppe Pontoriero, Pantelis Sarafidis, Marian Klinger, Radovan Hojs, Sarah Seiler-Mussler, Fabio Lizzi, Dimitrie Siriopol, Olga Balafa, Linda Shavit, Rocco Tripepi, Francesca Mallamaci, Giovanni Tripepi, Eugenio Picano, Gérard Michel London, Carmine Zoccali
BACKGROUND AND OBJECTIVES: Accumulation of fluid in the lung is the most concerning sequela of volume expansion in patients with ESRD. Lung auscultation is recommended to detect and monitor pulmonary congestion, but its reliability in ESRD is unknown. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In a subproject of the ongoing Lung Water by Ultra-Sound Guided Treatment to Prevent Death and Cardiovascular Complications in High Risk ESRD Patients with Cardiomyopathy Trial, we compared a lung ultrasound-guided ultrafiltration prescription policy versus standard care in high-risk patients on hemodialysis...
November 7, 2016: Clinical Journal of the American Society of Nephrology: CJASN
Shuai Ma, Yuli Lin, Bo Deng, Yin Zheng, Chuanming Hao, Rui He, Feng Ding
BACKGROUND: The endothelium is a potentially valuable target for sepsis therapy. We have previously studied an extracorporeal endothelial cell therapy system, called the endothelial bioreactor (EBR), which prolonged the survival time of endotoxemia sepsis in swine. To further study of the therapeutic effects and possible mechanisms, we established a miniature EBR system for septic rats induced by cecal ligation and puncture (CLP). METHODS: In the miniature EBR system, the extracorporeal circulation first passed through a mini-hemofilter, and the ultrafiltrate (UF) was separated, then the UF passed through an EBR (a 1-mL cartridge containing approximately 2 × 10(6) endothelial cells grown on microcarriers) and interact with endothelial cells...
December 2016: Intensive Care Medicine Experimental
Natasa Eftimovska-Otovic, Risto Grozdanovski, Borjanka Taneva, Olivera Stojceva-Taneva
INTRODUCTION: Intradialytic hypertension with a prevalence of 15% among hemodialysis patients is with unknown pathophysiology, demographic, laboratoiy and clinical characteristic of patients, and it's influence on longtenn clinical effects (cardiovascular morbidity and mortality, rate of hospitalization). The aim of the study is to present the clinical, laboratoiy and demographic characteristics of patients with intradialytic hypertension in our dialysis center. MATERIALS AND METHODS: Out of 110 hemodialysis patients, 17 patients (15,45%) had intradialytic hypertension - started at a systolic pressure greater than 140 nun Hg or had an increase in systolic pressure more than 10 mm Hg during the session, and 17 patients were nonnotensive or had a drop in blood pressure dining the dialysis...
2015: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
Innocenzo Caruso, Salvatore Santandrea, Mariarita Gismondo, Alessandra Lombardi, Franco Montrone, Enzo Massimo Caruso, Piercarlo Sarzi Puttini
BACKGROUND: Our previous results showed that intrasynovial Rifamycin SV caused the lysis of synoviocites and freed the autoantigens which in turn stimulated the immunoregulatory rather than autoreactive T cell response in rheumatoid patients. Here, we hypothesize that disruption in vitro of peripheral blood mononuclear cells, by freeze/thawing or by lytic action of Rifamycin SV, would induce the release of endosomal pathogenic autoantigens from APCs present in the circulation, which could then be isolated from degrading enzymes by ultrafiltration...
2016: Journal of Translational Medicine
Zied Hajjej, Hedi Gharsallah, Habiba Naija, Ilhem Boutiba, Iheb Labbene, Mustapha Ferjani
We describe a case of 58-year-old man with septic shock due to Carbapenem-resistant Klebsiella pneumoniae (CR-Kp) bloodstream infections (BSI) who was successfully treated with a high dose association of amikacin and imipenem combined with continuous venovenous hemodiafiltration (CVVHDF). A Klebsiella pneumoniae (Kp) was isolated from the catheter culture and from two blood samples, drawn from the catheter before removal and from a peripheral vein. The Kp was intermediate to Amikacin (MIC = 16 μg/ml) and was resistant to all other antibiotics including Imipenem (MIC = 4 μg/ml), Colistin (MIC = 16 μg/ml) and Tigecycline (MIC = 4 μg/ml) according to the Clinical and Laboratory Standards Institute (CLSI) published in 2011...
2016: IDCases
Priya Banerjee, Tanmoy Kumar Dey, Sandeep Sarkar, Snehasikta Swarnakar, Aniruddha Mukhopadhyay, Sourja Ghosh
Extensive usage of pharmaceutical and personal care products (PPCPs) and their discharge through domestic sewage have been recently recognized as a new generation environmental concern which deserves more scientific attention over the classical environmental pollutants. The major issues of this type of effluent addressed in this study were its colour, triclosan and anionic surfactant (SDS) content. Samples of cosmetic effluent were collected from different beauty treatment salons and spas in and around Kolkata, India and treated in bioreactors containing a bacterial consortium isolated from activated sludge samples collected from a common effluent treatment plant...
March 2016: Chemosphere
Werner Ribitsch, Daniel Schneditz, Casper F M Franssen, Gernot Schilcher, Vanessa Stadlbauer, Jörg H Horina, Alexander R Rosenkranz
BACKGROUND AND OBJECTIVES: Ultrafiltration (UF) of excess fluid activates numerous compensatory mechanisms during hemodialysis (HD). The increase of both total peripheral and splanchnic vascular resistance is considered essential in maintaining hemodynamic stability. The aim of this study was to evaluate the extent of UF-induced changes in hepato-splanchnic blood flow and resistance in a group of maintenance HD patients during regular dialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Hepato-splanchnic flow resistance index (RI) and hepato-splanchnic perfusion index (QI) were measured in 12 chronic HD patients using a modified, non-invasive Indocyaningreen (ICG) dilution method...
2015: PloS One
Ricardo Morales-Alvarez, Raúl Martínez-Memije, Brayans Becerra-Luna, Paola García-Paz, Oscar Infante, Alfredo Palma-Ramírez, Amaya Caviedes-Aramburu, Jesús Vargas-Barrón, Claudia Lerma, Héctor Pérez-Grovas
Hemodialysis (HD) is usually performed with the gradually decreasing ultrafiltration rate (UFR) profile (dUFR). The aim of the present study was to compare the hemodynamic response to HD with the dUFR to that of HD with the gradually increasing UFR profile (iUFR). The study population included 10 patients (three women, mean age: 28 ± 8 years) undergoing maintenance HD who had reached dry weight without taking antihypertensive medications. Each patient received (in random order) one HD session with the dUFR and another with the iUFR (both with 3 h total UFR = 2200 mL)...
July 2016: Artificial Organs
Kai Li, Chun-gui Zhao, Hui-ying Yue, Su-ping Yang, Yin-bo Qu, Nian-zhi Jiao
To seek microscopic molecular mechanism of energy transfer and complex reconstitution in the photosynthesis, the conditions for construction of B850-only peripheral light-harvesting complex (LH2) and their properties were investigated using absorption, fluorescence spectroscopy, molecular sieve chromatography, ultrafiltration and sodium dodecylsulfate polyacrylamide gel electrophoresis (SDS-PAGE) from the purple bacteria. The results indicated that bacteriochlorophylls (BChl) of B800 incubated in 10 mmo · L(-1) Tris-HCl (pH 8...
April 2015: Guang Pu Xue Yu Guang Pu Fen Xi, Guang Pu
Christian Daugaard Peters, Krista Dybtved Kjaergaard, Jens Dam Jensen, Kent Lodberg Christensen, Charlotte Strandhave, Ida Noerager Tietze, Marija Kristina Novosel, Bo Martin Bibby, Bente Jespersen
BACKGROUND AND AIM: Little is known about the tolerability of antihypertensive drugs during hemodialysis treatment. The present study evaluated the use of the angiotensin II receptor blocker (ARB) irbesartan. DESIGN: Randomized, double-blind, placebo-controlled, one-year intervention trial. SETTING AND PARTICIPANTS: Eighty-two hemodialysis patients with urine output >300 mL/day and dialysis vintage <1 year. INTERVENTION: Irbesartan/placebo 300 mg/day for 12 months administered as add-on to antihypertensive treatment using a predialytic systolic blood pressure target of 140 mmHg in all patients...
2015: PloS One
Kai-Uwe Eckardt, Iain A Gillespie, Florian Kronenberg, Sharon Richards, Peter Stenvinkel, Stefan D Anker, David C Wheeler, Angel L de Francisco, Daniele Marcelli, Marc Froissart, Jürgen Floege
Early mortality is high in hemodialysis (HD) patients, but little is known about early cardiovascular event (CVE) rates after HD initiation. To study this we analyzed data in the AROii cohort of incident HD patients from over 300 European Fresenius Medical Care dialysis centers. Weekly rates of a composite of CVEs during the first year and monthly rates of the composite and its constituents (coronary artery, cerebrovascular, peripheral arterial, congestive heart failure, and sudden cardiac death) during the first 2 years after HD initiation were assessed...
November 2015: Kidney International
Bruno C Silva, Rosa M A Moysés, Vitor B Silva, Geraldo R R Freitas, Rosilene M Elias
Parathyroidectomy (PTx) seems to improve cardiovascular outcomes and reduce blood pressure levels. However, the effect of PTx on hemodynamic changes during hemodialysis (HD) is still overlooked. This was a prospective cohort design. Patients with end-stage renal disease on maintenance HD were included. Diabetes and nonsinusal rhythm were exclusion criteria. History of PTx was recorded. Finometer monitor was used to access parameters immediately pre- and post-HD sessions. Cardiac index (CI) variation (ΔCI) and peripheral arterial resistance variation (ΔPAR) were the variables of interest...
January 2016: Hemodialysis International
Bruno C Silva, Geraldo R R Freitas, Vitor B Silva, Hugo Abensur, Claudio Luders, Benedito J Pereira, Rodrigo B de Oliveira, Manuel C M Castro, Rosa M A Moysés, Rosilene M Elias
BACKGROUND/AIMS: Ultrafiltration that occurs during hemodialysis (HD) promotes profound alterations in a relatively short period of time. The dialysate content of bicarbonate (DBic) and potassium (DK) may have impact over intradialytic hemodynamics, which goes beyond ultrafiltration, and its impact was evaluated in a prospective cohort. METHODS: 30 patients under HD were submitted to hemodynamic assessment (HA) at the beginning and at the end of HD sessions, through a non-invasive method...
2014: Kidney & Blood Pressure Research
C Charles Michel, M Nazeem Nanjee, Waldemar L Olszewski, Norman E Miller
The mechanisms by which LDLs and HDLs cross the vascular endothelium from plasma into interstitial fluid are not understood, and have never been studied in humans in vivo. We determined whether the plasma-to-lymph clearance rates of LDL and HDL conform with those predicted by passive ultrafiltration through intercellular pores, or if it is necessary to invoke an active process such as receptor-mediated transcytosis. Plasma and afferent peripheral lymph were collected under steady-state conditions from 30 healthy men, and assayed for seven globular proteins of molecular radii 2...
January 2015: Journal of Lipid Research
Simon F Shakar, JoAnn Lindenfeld
Most patients admitted to the hospital with ADHF do not achieve adequate relief of signs and symptoms of congestion. Patients with inadequate decongestion are known to be at higher risk of readmission for heart failure and mortality, although it is uncertain whether this is a cause or simply a marker of increased risk. Nonetheless, adequate decongestion is critical for improving quality of life. Based on the DOSE-AHF and CARRESS-HF studies, a high-dose diuretic regimen consisting of 2.5 times the daily dose of loop diuretic in furosemide equivalents, administered in twice-daily bolus doses, is reasonable to achieve a goal of 3-5 liters of urine output per day...
August 2014: Current Treatment Options in Cardiovascular Medicine
Jos A Bosch
In the social sciences, the use of saliva parameters has greatly expanded in recent years from the measurement of steroid hormones, like cortisol, and now includes a wide range of biochemical parameters. These salivary constituents can be broadly classified into two groups: (1) constituents that enter saliva from plasma (e.g. hormones, inflammatory markers, drug chemicals) and (2) constituents that are produced locally by the saliva glands (e.g. α-amylase, secretory IgA). Reliable measurement of blood-borne constituents assumes a constant saliva/plasma ratio (SPR), which implies that the concentration in saliva truthfully follows intra- and interindividual variations in plasma...
2014: Monographs in Oral Science
Priya Banerjee, Sandeep Sarkar, Tanmoy Kumar Dey, Madhurima Bakshi, Snehasikta Swarnakar, Aniruddha Mukhopadhayay, Sourja Ghosh
A bacterial consortium isolated from activated sludge was identified to be Bacillus sp., Pseudomonas sp., Shigella sp. and E. coli. and was found capable of 98.62 % decolourization of highly toxic textile effluent, when applied in an ultrafiltration (UF) membrane bioreactor (UMBR). Ceramic capillary UF membranes prepared over low cost support proved to be highly efficient in adverse experimental conditions. The UMBR permeate and untreated textile effluent (40 % (v/v)) was then used to treat Heteropneustes fossilis for a comparative assessment of their toxicity...
August 2014: Ecotoxicology
Jennifer L Shea, Pui-Yuen Wong, Yu Chen
Testosterone, the most abundant androgen in men, is a steroid hormone that is synthesized predominantly by the testes. In women, minor amounts are synthesized in the ovaries. Androgen precursors are also produced and secreted from the adrenal glands in both sexes, where they undergo peripheral conversion to testosterone. Circulating concentrations are approximately 15-25 times higher in adult men compared to women. Maintenance of these levels is necessary for development and maintenance of secondary sexual characteristics, libido, growth, prevention of osteoporosis, and most importantly in men, spermatogenesis...
2014: Advances in Clinical Chemistry
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