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Blood purification

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https://www.readbyqxmd.com/read/28648652/dialysis-related-parameters-influence-remodeling-in-the-venous-part-of-the-native-arteriovenous-fistula
#1
Tomasz Gołębiowski, Mariusz Kusztal, Krzysztof Letachowicz, Hanna Augustyniak-Bartosik, Maciej Szymczak, Magdalena Krajewska, Wojciech Marcinkowski, Wacław Weyde, Marian Klinger
AIM: The aim of this study was to evaluate the association of hemodynamic parameters related to hemodialysis and antropometric parameters of patients with changes in the venous part of the arteriovenous fistula (AVF) at points of needling. MATERIAL AND METHODS: 242 HD patients (60.3% men), with median age 65 [IQR 56-75] years, on HD treatment for a median of 49 [IQR 20-88] months with functioning fistula were recruited to the study. The history of vascular access, comorbidity, antropometric (BMI, BSA, body composition) and dialysis-related parameters were analyzed...
June 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28648014/-clinical-efficacy-observation-of-atomization-inhalation-combined-with-oral-administration-of-oseltamivir-in-4-cases-with-h7n9-avian-influenza
#2
Z Li, X Y Fu, X B Fang, J Li, T Chen, L M Qiu, J Cai, W L Wang, Z Q Pan, Y Zhang, J L Zhou
Objective: To investigate the clinical efficacy of atomization inhalation combined with oral administration of oseltamivir in treatment of human infection with H7N9 avian influenza. Methods: To analyze the clinical data of 4 patients hospitalized from Mar 6th 2017 to Apr 12th 2017 with avian influenza(H7N9) infection treated by conventional therapy(oseltamivir, 150 mg, po, Bid) plus with oseltamivir inhalation(75 mg dissolved in 20 ml N. S, Bid) and administered with antibacterial treatment, blood purification and immunomodulators...
June 27, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647456/improved-recovery-of-functionally-active-eosinophils-and-neutrophils-using-novel-immunomagnetic-technology
#3
Kiho Son, Manali Mukherjee, Brendan A S McIntyre, Jose C Eguez, Katherine Radford, Nicola LaVigne, Caroline Ethier, Francis Davoine, Luke Janssen, Paige Lacy, Parameswaran Nair
Clinically relevant and reliable reports derived from in vitro research are dependent on the choice of cell isolation protocols adopted between different laboratories. Peripheral blood eosinophils are conventionally isolated using density-gradient centrifugation followed by immunomagnetic selection (positive/negative) while neutrophils follow a more simplified dextran-sedimentation methodology. With the increasing sophistication of molecular techniques, methods are now available that promise protocols with reduced user-manipulations, improved efficiency, and better yield without compromising the purity of enriched cell populations...
June 21, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28641610/-biological-characteristics-of-microvesicles-secreted-by-human-peripheral-blood-hematopoietic-stem-cells
#4
Chen Liang, Jun-Hui Wang, Lei Deng, Lu Wang, Yi Wang, Ya-Jing Huang, Tie-Qiang Liu, Bo Cai, Hong-Li Zuo, Qi-Yun Sun, Jian-Hui Qiao, Chang-Lin Yu, Kai-Xun Hu, Hui-Sheng Ai, Mei Guo
OBJECTIVE: To investigate the effects of microvesicles(MV) isolated from human peripheral blood hematopoietic stem cells(PB-HSC) on immune regulation and hematopoiesis. METHODS: PB-HSCs were separated by density-gradient centrifugation and cultrued. The supernatants of PB-HSC at 48 h were harvested for isolation and purification of MV by using ultracentrifugation. The electron microscopy was used to observe the morphology of MV. The protein level in MV was quantified through bicinchoninic acid(BCA) protein assay...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28640945/production-of-human-vitronectin-in-nicotiana-benthamiana-using-the-inpact-hyper-expression-platform
#5
Benjamin Dugdale, Maiko Kato, Pradeep Deo, Manuel Plan, Mark Harrison, Robyn Lloyd, Terry Walsh, Robert Harding, James Dale
Human vitronectin (hVN) is a glycoprotein that functions as a cell adhesion molecule and a regulator of coagulation in blood plasma and the extracellular matrix. In vitro, hVN is added to serum-free media in order to promote the adhesion of animal cells to tissue culture surfaces and the proliferation of undifferentiated stem cells. Here, we report the production of hVN in Nicotiana benthamiana using the inducible In Plant Activation (INPACT) hyper-expression platform. N. benthamiana plants were transformed with an INPACT expression cassette encoding hVN, and both the Tobacco yellow dwarf virus Rep/RepA activator and Tomato bushy stunt virus p19 gene under the transcriptional control of the ethanol-inducible AlcR:alcA gene switch...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28635544/heparin-new-life-for-an-old-drug
#6
Carlos Raúl Aláez-Versón, Elena Lantero, Xavier Fernàndez-Busquets
Heparin is one of the oldest drugs, which nevertheless remains in widespread clinical use as an inhibitor of blood coagulation. The history of its identification a century ago unfolded amid one of the most fascinating scientific controversies turning around the distribution of credit for its discovery. The composition, purification and structure-function relationship of this naturally occurring glycosaminoglycan regarding its classical role as anticoagulant will be dealt with before proceeding to discuss its therapeutic potential in, among other, inflammatory and infectious disease, cancer treatment, cystic fibrosis and Alzheimer's disease...
June 21, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28627360/the-plasmodium-falciparum-exported-protein-pf3d7_0402000-binds-to-erythrocyte-ankyrin-and-band-4-1
#7
Bikash Shakya, Wesley D Penn, Ernesto S Nakayasu, Douglas J LaCount
Plasmodium falciparum extensively modifies the infected red blood cell (RBC), resulting in changes in deformability, shape and surface properties. These alterations suggest that the RBC cytoskeleton is a major target for modification during infection. However, the molecular mechanisms leading to these changes are largely unknown. To begin to address this question, we screened for exported P. falciparum proteins that bound to the erythrocyte cytoskeleton proteins ankyrin 1 (ANK1) and band 4.1 (4.1R), which form critical interactions with other cytoskeletal proteins that contribute to the deformability and stability of RBCs...
June 13, 2017: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/28625248/-core-knowledge-and-skill-based-approach-to-subspecialty-construction-in-critical-intensive-care-medicine-with-distinct-chinese-peculiarity
#8
Lijun Wang, Fang Tian
With the rapid development of critical care medicine (CCM) in China, there are increases in the number of intensive care units (ICUs), the scale of one center ICU and the team. Subspecialty construction of CCM is of great concerns for personnel training as well as discipline development, and is currently one of the urgent problems that need to be resolved. Experience of CCM subspecialty construction from Europe and the United States is lacking and it is necessary to propose some opinions on innovation to construct CCM subspecialties with Chinese characteristics...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28614941/-one-case-of-acute-respiratory-distress-syndrome-induced-by-chlorine-inhalation-treated-by-combining-extracorporeal-membrane-oxygenation-and-blood-purification
#9
H Zhao, J Shu, R F Li
No abstract text is available yet for this article.
April 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28607338/blood-purification-with-continuous-venovenous-hemofiltration-in-patients-with-sepsis-or-acute-respiratory-distress-syndrome-a-systematic-review-and-meta-analysis-of-randomized-evidence
#10
Alessandro Putzu, Ming-Xing Fang, Martina Boscolo Berto, Alessandro Belletti, Luca Cabrini, Tiziano Cassina, Giovanni Landoni
INTRODUCTION: Severe inflammatory conditions, as severe sepsis/septic shock and acute respiratory distress syndrome (ARDS), are related to high morbidity and mortality. We performed a meta-analysis of randomized trials to assess if blood purification with continuous venovenous hemofiltration (CVVH) reduces mortality in these settings. EVIDENCE ACQUISITION: Online databases were searched for pertinent studies up to March 2017. We included randomized-controlled trials on the use of CVVH as blood purification technique in comparison to conventional therapy in adult patients with severe sepsis/septic shock or ARDS but no acute kidney injury needing renal replacement therapy...
June 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28606843/the-effect-of-diosmin-on-the-blood-proteome-in-a-rat-model-of-venous-thrombosis
#11
Cuilin Cheng, Hong Zhang, Yongzhi Li, Yingyu Zhou, Weihong Lu, Lei Yao
This study was designed to find the protein changes of venous thrombosis in Wistar rats with and without diosmin treatment by two-dimensional gel electrophoresis (2-DE) and investigate the effect of a crucial protein known as CEP350 on human vascular endothelial cell growth. Diosmin was prepared from G.verum L. by solvent extraction and identified 98% purification by HPLC after chromatographic purification using macroporous absorption resin (AB-8) and polyamide. Wistar rats were divided into three groups respectively control group, model group and prevention group...
June 9, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28604602/highly-sensitive-bacteriophage-based-detection-of-brucella-abortus-in-mixed-culture-and-spiked-blood
#12
Kirill V Sergueev, Andrey A Filippov, Mikeljon P Nikolich
For decades, bacteriophages (phages) have been used for Brucella species identification in the diagnosis and epidemiology of brucellosis. Traditional Brucella phage typing is a multi-day procedure including the isolation of a pure culture, a step that can take up to three weeks. In this study, we focused on the use of brucellaphages for sensitive detection of the pathogen in clinical and other complex samples, and developed an indirect method of Brucella detection using real-time quantitative PCR monitoring of brucellaphage DNA amplification via replication on live Brucella cells...
June 10, 2017: Viruses
https://www.readbyqxmd.com/read/28600615/clinical-study-of-blood-purification-therapy-in-critical-care-in-japan-results-from-the-survey-research-of-the-japan-society-for-blood-purification-in-critical-care-in-2013
#13
Toshiaki Arimura, Masanori Abe, Hidetoshi Shiga, Hiroshi Katayama, Kazo Kaizu, Shigeto Oda
To clarify the clinical status of blood purification therapy (BPT) in critical care in Japan, we conducted a cohort study using data from a nationwide registry of the Japan Society for Blood Purification in Critical Care in 2013. We enrolled 2227 patients treated with BPT (female, 39.1%; mean age, 65.5 ± 12.1 years) in the intensive care units of 43 facilities. Patient characteristics, modes of BPT, and survival rate for each disease were investigated. In total, BPT was performed 3053 times. Continuous renal replacement therapy (CRRT) (57...
June 9, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28576282/-evidence-of-antihypertensive-effect-of-a-land-snail-helix-aspersa-by-product-hydrolysate%C3%A2-%C3%A2-identification-of-involved-peptides
#14
P Drevet
The antihypertensive potential of a land snail by-product hydrolysate, obtained after an agri-food processing of the raw material, was studied in vitro and in vivo. First, the ACE inhibitory activity of hydrolysates obtained before and after an ultrafiltration step with a 10kDa membrane cutoff was assayed. The IC50 obtained were of 98.3μg·mL(-1) and 23μg·mL(-1), respectively, showing a 4.2 fold increase in ACE inhibitory capacity after the ultrafiltration step. Then, ACE inhibitory capacity of the hydrolysate was followed...
May 30, 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28575937/a-facile-way-to-prepare-anti-fouling-and-blood-compatible-polyethersulfone-membrane-via-blending-with-heparin-mimicking-polyurethanes
#15
Chen Wang, Rui Wang, Yuan Xu, Man Zhang, Fan Yang, Shudong Sun, Changsheng Zhao
In this study, new kinds of heparin-mimicking polyurethanes (PUs) were fabricated conveniently in the mixed solution of dimethyl sulfoxide (DMSO) and water, reducing the usage of organic solvent. Functional groups of SO3H and/or COOH were introduced into PUs with various ratios of SO3H to COOH. The PUs were then blended with polyethersulfone (PES) to fabricate heparin-mimicking modified PES membranes by a phase inversion technique. Then, the microstructures, zeta potentials, water contact angles (WCA) and protein adsorptions of the membranes were characterized...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28574104/ecmo-and-cytokine-removal-for-bridging-to-surgery-in-a-patient-with-ischemic-ventricular-septal-defect-a-case-report
#16
Stefanie Marek, Gunnar Gamper, Georg Reining, Peter Bergmann, Harald Mayr, Andreas Kliegel
Even in the modern era of percutaneous coronary intervention, postinfarction ventricular septal defect (VSD) remains a serious and often lethal complication. Whether or not immediate surgical repair or delaying surgery a few days aided by intra-aortic counterpulsation provides the optimal strategy remains a matter of debate. An interdisciplinary approach of intensivists and cardiac surgeons in this setting is mandatory. We report the use of veno-arterial extracorporeal membrane oxygenation and extracorporeal blood purification therapy (CytoSorb®) as bridging to surgical closure in a patient with an ischemic VSD leading to protracted cardiogenic shock after posterior myocardial infarction...
May 23, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28560679/personalized-treatment-through-detection-and-monitoring-of-genetic-aberrations-in-single-circulating-tumor-cells
#17
Swee Jin Tan, Trifanny Yeo, Sarvesh Abhay Sukhatme, Say Li Kong, Wan-Teck Lim, Chwee Teck Lim
Circulating tumor cells (CTCs) present a viable alternative to access tumor materials other than primary biopsies in cancer. This disease is among the most widespread in the world and is difficult to target because of its complex nature, challenges in getting quality samples and dynamic temporal changes in response to treatment. Conventional methods of detection and monitoring the disease profile do not suffice to be able to target the heterogeneity that exists at the cellular level. CTCs have been identified as a possible substitute for tumor tissue samples, and can be used to complement current disease management...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28560668/aptamer-based-methods-for-detection-of-circulating-tumor-cells-and-their-potential-for-personalized-diagnostics
#18
Anna S Zamay, Galina S Zamay, Olga S Kolovskaya, Tatiana N Zamay, Maxim V Berezovski
Cancer diagnostics and treatment monitoring rely on sensing and counting of rare cells such as cancer circulating tumor cells (CTCs) in blood. Many analytical techniques have been developed to reliably detect and quantify CTCs using unique physical shape and size of tumor cells and/or distinctive patterns of cell surface biomarkers. Main problems of CTC bioanalysis are in the small number of cells that are present in the circulation and heterogeneity of CTCs. In this chapter, we describe recent progress towards the selection and application of synthetic DNA or RNA aptamers to capture and detect CTCs in blood...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28556996/semi-high-throughput-isolation-and-n-glycan-analysis-of-human-fibrinogen-using-monolithic-supports-bearing-monoclonal-anti-human-fibrinogen-antibodies
#19
Urška Vidic, Irena Trbojević-Akmačić, Urh Černigoj, Malena Albers, Jernej Gašperšič, Maja Pučić-Baković, Jana Vidič, Aleš Štrancar, Gordan Lauc
Fibrinogen (FIB) is a secretory glycoprotein synthesized by hepatocytes that has a key role in blood clotting. Its glycosylation has not been studied in detail and little is known about the biological variability of FIB N-glycosylation, mainly due to the lack of fast, simple, and robust approaches to purify FIB from blood plasma samples. In recent years, customised chromatographic monoliths have been used for a variety of biological applications due to their unique characteristics. Here we describe development and optimisation of monolithic supports bearing monoclonal anti-human fibrinogen antibodies in a single column as well as in multi-well plate formats with high FIB specificity and binding capacity for fast immunoaffinity purification of FIB from human blood samples...
May 30, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28543387/the-hematocrit-affects-the-volume-of-plasma-treated-with-coupled-plasma-filtration-and-adsorption-with-predilution
#20
Stefano Finazzi, Elena Garbero, Giampietro Trussardi, Guido Bertolini
Coupled plasma filtration and adsorption (CPFA) is an extracorporeal blood purification technique proposed for the treatment of septic-shock. By removing pro- and anti-inflammatory mediators from plasma, CPFA is supposed to have a therapeutic effect on the abnormal inflammatory response seen in this condition. Recently, blood predilution with citrate solution has been adopted to prevent clotting in the CPFA circuit-one of the main problems of the technique. Taking into account the patient's hematocrit, we worked out a formula for the volume of plasma effectively treated by CPFA after predilution...
May 2017: Artificial Organs
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