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adsorption AND Sepsis

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https://www.readbyqxmd.com/read/29331425/low-picomolar-label-free-procalcitonin-analytical-detection-with-an-electrolyte-gated-organic-field-effect-transistor-based-electronic-immunosensor
#1
Preethi Seshadri, Kyriaki Manoli, Nicole Schneiderhan-Marra, Uwe Anthes, Piotr Wierzchowiec, Klaus Bonrad, Cinzia Di Franco, Luisa Torsi
Herein a label-free immunosensor based on electrolyte-gated organic field-effect transistor (EGOFET) was developed for the detection of procalcitonin (PCT), a sepsis marker. Antibodies specific to PCT were immobilized on the poly-3-hexylthiophene (P3HT) organic semiconductor surface through direct physical adsorption followed by a post-treatment with bovine serum albumin (BSA) which served as the blocking agent to prevent non-specific adsorption. Antibodies together with BSA (forming the whole biorecognition layer) served to selectively capture the procalcitonin target analyte...
December 26, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29207229/-bilirubin-removal-with-coupled-plasma-filtration-and-adsorption-in-patients-affected-by-hilar-cholangiocarcinoma
#2
Walter De Simone, Francesco Crafa, Adele Noviello, Francesco Esposito, Bruno Zito, Rocco Manganelli, Antonella De Simone, Luigi Covotta, Giuseppe Palladino, Emanuele De Simone
Background: Patients affected by hilar cholangiocarcinoma are eligible for surgery only in the 20-30% of the cases and postoperative mortality is 40-50%. Many specialists are involved in the treatment of this disease, like surgeons, gastroenterologists, oncologists and radiotherapists. Recent studies have shown that preoperative bilirubinaemia is a predictor of morbidity and mortality after surgery. Coupled Plasma Filtration and Adsorption (CPFA) is a blood purification extracorporeal therapy recommended for sepsis and able to reduce bilirubinaemia...
December 5, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28991050/selective-lps-adsorption-using-polymyxin-b-immobilized-fiber-cartridges-in-sepsis-patients-following-cardiac-surgery
#3
Michael Yaroustovsky, Marina Abramyan, Ekaterina Komardina, Helen Nazarova, Dmitrii Popov, Marina Plyushch, Alina Soldatkina, Ekaterina Rogalskaya
Sepsis remains the leading cause of morbidity and mortality in intensive care units. The extracorporeal therapy in the complex treatment of sepsis seems to be the most promising direction.The aim of this study was to assess the safety and effectiveness of selective endotoxin adsorption on the basis of the analysis of our own experience with the intensive therapy for sepsis in adult cardiac surgical patients. MATERIALS AND METHODS: Our single-center study included 143 patients with sepsis...
October 4, 2017: Shock
https://www.readbyqxmd.com/read/28931287/enhanced-capture-of-bacteria-and-endotoxin-by-antimicrobial-wlbu2-peptide-tethered-on-polyethylene-oxide-spacers
#4
Ramya Raman, Miranda A Raper, Erik Hahn, Kate F Schilke
Severe sepsis is a life threatening immune response that may be caused by endotoxins (lipopolysaccharides) in circulating bacterial cell wall fragments. Hemoperfusion through a sorbent column coated with the antimicrobial peptide polymyxin B (PMB) is a promising treatment for sepsis. However, PMB is cytotoxic and neurotoxic, and is a membrane disruptor that may fragment endotoxin vesicles. In addition, the blood is not protected from nonspecific interactions with the synthetic surface of the solid support. These effects may be responsible for the variety of undesirable clinical outcomes, including nonspecific adsorption of proteins, blood cell damage, platelet activation, and a lack of clear evidence of efficacy of the current hemoperfusion products...
September 20, 2017: Biointerphases
https://www.readbyqxmd.com/read/28923774/endotoxin-adsorption-direct-hemoperfusion-with-the-polymyxin-b-immobilized-fiber-column-pmx
#5
REVIEW
Tomoharu Shimizu, Toru Miyake, Naomi Kitamura, Masaji Tani, Yoshihiro Endo
Toraymyxin(®) is a medical device developed to adsorb circulating endotoxins in the blood using direct hemoperfusion therapy for patients with septic shock. In 1994, the Japanese National Health Insurance system approved the use of Toraymyxin for the treatment of endotoxemia and septic shock. Since then, Toraymyxin has been safely used in more than 100,000 cases in emergency and intensive care units in Japan. Toraymyxin is currently available for use in the clinical setting in 14 countries worldwide. In this study, we reviewed and introduced the development, clinical use, and efficacy of Toraymyxin and commented on its anticoagulant use and cartridge clotting issue in the treatment of severe sepsis and septic shock...
August 31, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28894043/immune-disorders-in-sepsis-and-their-treatment-as-a-significant-problem-of-modern-intensive-care
#6
Lidia Łysenko, Patrycja Leśnik, Kamil Nelke, Hanna Gerber
Despite the great advances in the treatment of sepsis over the past 20 years, sepsis remains the main cause of death in intensive care units. In the context of new possibilities of treating sepsis, a comprehensive response of the immune system to the infection, immunosuppression, in particular, has in recent years gained considerable interest. There is vast evidence pointing to the correlation between comorbid immunosuppression and an increased risk of recurrent infections and death. Immune disorders may impact the clinical course of sepsis...
August 22, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28589286/extracorporeal-cytokine-elimination-as-rescue-therapy-in-refractory-septic-shock-a-prospective-single-center-study
#7
Sigrun Friesecke, Stephanie-Susanne Stecher, Stefan Gross, Stephan B Felix, Axel Nierhaus
Sepsis is the most common cause of death in medical intensive care units (ICU). If sepsis progresses to refractory septic shock, mortality may reach 90-100% despite optimum current therapy. Extracorporeal cytokine adsorption in addition to regular therapy was studied prospectively in refractory septic shock patients on a medical ICU. Refractory shock was defined as increasing vasopressor dose required to maintain mean arterial blood pressure above 65 mmHg or increasing lactate levels despite protocol-guided shock therapy for 6 h...
June 6, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28535518/extracorporeal-sorbent-technologies-basic-concepts-and-clinical-application
#8
William R Clark, Fiorenza Ferrari, Gaetano La Manna, Claudio Ronco
Limitations imposed by the characteristics of some solutes and the structure of dialysis membranes have spurred new interest in the use of mechanisms beyond diffusion and convection for extracorporeal solute removal. Sorbents have been utilized for more than 50 years in extracorporeal blood treatments for specific purposes, and better understanding of their basic aspects may further expand the potential for their clinical application. In this chapter, the basic principles applying to sorbents are discussed, including composition and structure, along with the fundamental mechanisms of solute removal...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535517/coupled-plasma-filtration-adsorption-application-for-liver-and-thyroid-toxins
#9
Gabriele Donati, Irene Capelli, Anna Laura Croci Chiocchini, Nicolò Natali, Anna Scrivo, Gaetano La Manna
Coupled plasma filtration and adsorption (CPFA) is a detoxification system that combines a plasma adsorption circuit and a continuous renal replacement therapy circuit. Its main application is for sepsis and septic shock with or without acute renal failure. Several recent studies have suggested that CPFA can reduce the mortality when the volume of plasma absorbed on the styrenic resin is at least >0.18 L/kg/day. At present, new applications for CPFA are under investigation, also in patients without significant kidney failure...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28525674/continuous-hemoadsorption-with-a-cytokine-adsorber-during-sepsis-a-review-of-the-literature
#10
Khosrow S Houschyar, Malcolm N Pyles, Susanne Rein, Ina Nietzschmann, Dominik Duscher, Zeshaan N Maan, Kristian Weissenberg, Hubertus M Philipps, Catharina Strauss, Beate Reichelt, Frank Siemers
Sepsis is a well-recognized healthcare issue worldwide, ultimately resulting in significant mortality, morbidity and resource utilization during and after critical illness. In its most severe form, sepsis causes multi-organ dysfunction that produces a state of critical illness characterized by severe immune dysfunction and catabolism. Sepsis induces the activation of complement factor via 3 pathways and the release of inflammatory cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-1beta (IL-1β), resulting in a systemic inflammatory response...
May 29, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28358803/efficacy-of-polymyxin-b-immobilized-fiber-hemoperfusion-for-patients-with-septic-shock-caused-by-gram-negative-bacillus-infection
#11
Nobuyuki Saito, Kazuhiro Sugiyama, Testu Ohnuma, Takashi Kanemura, Michitaka Nasu, Yuya Yoshidomi, Yuta Tsujimoto, Hiroshi Adachi, Hiroyuki Koami, Aito Tochiki, Kota Hori, Yukiko Wagatsuma, Hisashi Matsumoto
Septic shock-associated mortality in intensive care units (ICUs) remains high, with reported rates ranging 30-50%. In particular, Gram-negative bacilli (GNB), which induce significant inflammation and consequent multiple organ failure, are the etiological bacterial agent in 40% of severe sepsis cases. Hemoperfusion using polymyxin B-immobilized fiber (PMX), which adsorbs endotoxin, is expected to reduce the inflammatory sepsis cascade due to GNB. However, the clinical efficacy of this treatment has not yet been demonstrated...
2017: PloS One
https://www.readbyqxmd.com/read/28342161/granulocyte-and-monocyte-adsorptive-apheresis-ameliorates-sepsis-in-rats
#12
Shuai Ma, Qingqing Xu, Bo Deng, Yin Zheng, Hongyan Tian, Li Wang, Feng Ding
BACKGROUND: Overwhelming activation of granulocytes and monocytes is central to inflammatory responses during sepsis. Granulocyte and monocyte adsorptive apheresis (GMA) is an extracorporeal leukocyte apheresis device filled with cellulose acetate beads and selectively adsorbs granulocytes and monocytes from the peripheral blood. METHODS: In this study, septic rats received the GMA treatment for 2 h at 18 h after cecal ligation and puncture. RESULTS: GMA selectively adsorbed activated neutrophils and monocytes from the peripheral blood, reduced serum inflammatory cytokine expression, and seemed to improve organ injuries and animal survival...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28165586/efficacy-of-postoperative-polymyxin-b-hemoperfusion-in-secondary-peritonitis-patients-with-septic-shock-a-propensity-matched-analysis
#13
Kuo-Ching Yuan, Shang-Yu Wang, Ming-Chin Yu, Yu-Pao Hsu, Heng-Chih Pan, Yung-Chang Chen
INTRODUCTION: Severe sepsis and septic shock is still a challenge. Polymyxin B hemoperfusion (PMX) is a device designed to remove circulating endotoxin by adsorption, which is reported to improve treatment outcomes. This study aimed to further verify the efficacy of PMX on postoperative, peritonitis, septic shock patients. METHODS: This study prospectively analyzed 20 of 155 patients who presented with postoperative septic shock and were treated with PMX in a single institute during the period March 2013 to September 2014 (Clinical Trial Protocol number: ChiCTR-ONC-16008160)...
February 10, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/27931259/abdominal-septic-shock-endotoxin-adsorption-treatment-asset-endotoxin-removal-in-abdominal-and-urogenital-septic-shock-with-the-alteco%C3%A2-lps-adsorber-study-protocol-for-a-double-blinded-randomized-placebo-controlled-trial
#14
Miklos Lipcsey, Jyrki Tenhunen, Jan Sjölin, Robert Frithiof, Stepani Bendel, Hans Flaatten, Rafael Kawati, Anne Kuitunen, Tor Inge Tønnessen, Sten Rubertsson
BACKGROUND: Severe sepsis and septic shock are common in intensive care and carry high mortality rates. In patients with Gram-negative infections, early and extensive removal of endotoxin may limit the inflammatory response that characterizes septic shock. The Alteco® LPS Adsorber (hereafter referred to cited as the lipopolysaccharide (LPS) Adsorber) can be used for endotoxin removal and attenuate the deleterious inflammatory and clinical responses seen in septic shock. METHODS/DESIGN: The Abdominal Septic Shock - Endotoxin Adsorption Treatment (ASSET) trial is a pilot study investigating the feasibility and safety of LPS Adsorber therapy...
December 8, 2016: Trials
https://www.readbyqxmd.com/read/27768920/nano-lc-ms-ms-for-the-identification-of-proteins-trapped-in-sorbent-cartridges-used-for-coupled-plasma-filtration-adsorption-treatments-of-healthy-pigs
#15
Donatella Nardiello, Clelia Prattichizzo, Maria Teresa Rocchetti, Loreto Gesualdo, Diego Centonze
A dedicated proteomic approach based on nano-Liquid Chromatography coupled with tandem mass spectrometry in ion trap is proposed for the analysis of proteins trapped in sorbent resin cartridges used to remove inflammatory mediators from blood by coupled plasma filtration adsorption (CPFA). The final purpose of the proposed proteomic approach was to obtain a reference map of plasma proteins trapped in CPFA sorbents used for the extracorporeal blood purification of healthy pigs, with the potential impact to design new bio-filters able to control the inflammatory imbalance under pathological conditions, such as severe sepsis...
January 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27764982/development-of-nanosponges-from-erythrocyte-ghosts-for-removal-of-streptolysin-o-from-mammalian-blood
#16
Vikesh Chhabria, Steve Beeton
AIM: To produce mammalian biomimetic nanosponges from mammalian erythrocyte ghosts. Biomimetic nanosponges were studied in vitro as treatment platforms against exotoxin-related sepsis. METHODS: Ovine blood was treated with hypotonic buffer to create erythrocyte ghosts and then subjected to sonication to produce erythrocyte vesicles of nonuniform size. Vesicles were then serially extruded through 400-nm and 100-nm polycarbonate membranes. Nanosponges were prepared by fusing poly(d,l-lactic-co-glycolic acid) cores with ovine erythrocyte vesicles...
October 21, 2016: Nanomedicine
https://www.readbyqxmd.com/read/27760529/the-effect-of-continuous-venovenous-hemofiltration-on-neutrophil-gelatinase-associated-lipocalin-plasma-levels-in-patients-with-septic-acute-kidney-injury
#17
Xingui Dai, Tao Li, Zhenhua Zeng, Chunlai Fu, Shengbiao Wang, Yeping Cai, Zhongqing Chen
BACKGROUND: It is known that continuous venonenous hemofiltration (CVVH) does not affect the plasma level of neutrophil gelatinase-associated lipocalin (pNGAL) in acute kidney injury (AKI) patients. However, because of the unique pathophysiology underlying AKI caused by sepsis, the effect of CVVH on pNGAL in this clinical setting is less certain. The purpose of this study was to determine the effect of CVVH on pNGAL in sepsis-induced AKI patients. METHODS: Between August 1, 2014, and December 31, 2014, 42 patients with sepsis-induced AKI underwent CVVH in the general intensive care unit of our institution and were consecutively enrolled in this study...
October 19, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27503310/polystyrene-divinylbenzene-based-adsorbents-reduce-endothelial-activation-and-monocyte-adhesion-under-septic-conditions-in-a-pore-size-dependent-manner
#18
Tanja Eichhorn, Sabine Rauscher, Caroline Hammer, Marion Gröger, Michael B Fischer, Viktoria Weber
Endothelial activation with excessive recruitment and adhesion of immune cells plays a central role in the progression of sepsis. We established a microfluidic system to study the activation of human umbilical vein endothelial cells by conditioned medium containing plasma from lipopolysaccharide-stimulated whole blood or from septic blood and to investigate the effect of adsorption of inflammatory mediators on endothelial activation. Treatment of stimulated whole blood with polystyrene-divinylbenzene-based cytokine adsorbents (average pore sizes 15 or 30 nm) prior to passage over the endothelial layer resulted in significantly reduced endothelial cytokine and chemokine release, plasminogen activator inhibitor-1 secretion, adhesion molecule expression, and in diminished monocyte adhesion...
October 2016: Inflammation
https://www.readbyqxmd.com/read/27436098/combination-of-ecmo-and-cytokine-adsorption-therapy-for-severe-sepsis-with-cardiogenic-shock-and-ards-due-to-panton-valentine-leukocidin-positive-staphylococcus-aureus-pneumonia-and-h1n1
#19
N J Lees, Ajp Rosenberg, A I Hurtado-Doce, J Jones, N Marczin, M Zeriouh, A Weymann, A Sabashnikov, A R Simon, A F Popov
Sepsis-induced cardiogenic shock in combination with severe acute respiratory failure represents a life-threatening combination that is often refractory to the conventional methods of treatment. We describe the case of a 33-year-old patient who developed acute cardiovascular collapse and ARDS secondary to superinfection of Panton-Valentine leukocidin-positive Staphylococcus aureus and H1N1 pneumonia who underwent successful combination therapy for severe sepsis-related cardiomyopathy and respiratory failure using extracorporeal membrane oxygenation and cytokine adsorption therapy...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27406647/mortality-reduction-in-septic-shock-by-plasma-adsorption-rompa-a-protocol-for-a-randomised-clinical-trial
#20
Francisco Colomina-Climent, Carola Giménez-Esparza, Cristina Portillo-Requena, José Manuel Allegue-Gallego, María Galindo-Martínez, Cristina Mollà-Jiménez, José Luis Antón-Pascual, Manuel Rodríguez-Serra, José Luis Martín-Ruíz, Pablo Juan Fernández-Arroyo, Eugenia María Blasco-Císcar, José Cánovas-Robles, Miguel Herrera-Murillo, Enrique González-Hernández, Fernando Sánchez-Morán, Manuel Solera-Suárez, Jesús Torres-Tortajada, José María Nuñez-Martínez, David Martín-Langerwerf, Eugenio Herrero-Gutiérrez, Isabel Sebastián-Muñoz, Antonio Palazón-Bru, Vicente Francisco Gil-Guillén
INTRODUCTION: There is a lack of evidence in the efficacy of the coupled plasma filtration adsorption (CPFA) to reduce the mortality rate in septic shock. To fill this gap, we have designed the ROMPA study (Mortality Reduction in Septic Shock by Plasma Adsorption) to confirm whether treatment with an adequate dose of treated plasma by CPFA could confer a clinical benefit. METHODS AND ANALYSIS: Our study is a multicentric randomised clinical trial with a 28-day and 90-day follow-up and allocation ratio 1:1...
July 12, 2016: BMJ Open
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