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Red Blood Cell Aggregation Rheological And Microstructural Characteristics
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Book Synopsis Red blood cell aggregation - rheological and microstructural characteristics by : Efstathios C. Kaliviotis
Download or read book Red blood cell aggregation - rheological and microstructural characteristics written by Efstathios C. Kaliviotis and published by . This book was released on 2009 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Red Blood Cell Aggregation by : Oguz Baskurt
Download or read book Red Blood Cell Aggregation written by Oguz Baskurt and published by CRC Press. This book was released on 2011-09-28 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red blood cells in humans-and most other mammals-have a tendency to form aggregates with a characteristic face-to-face morphology, similar to a stack of coins. Known as rouleaux, these aggregates are a normally occurring phenomenon and have a major impact on blood rheology. What is the underlying mechanism that produces this pattern? Does this real
Author :American Institute of Chemical Engineers Publisher :Charles C. Thomas Publisher ISBN 13 : Total Pages :338 pages Book Rating :4.:/5 (319 download)
Book Synopsis Rheology of Biological Systems by : American Institute of Chemical Engineers
Download or read book Rheology of Biological Systems written by American Institute of Chemical Engineers and published by Charles C. Thomas Publisher. This book was released on 1973 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red Cell Rheology written by M. Bessis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hemolysis during filtration through micropores studied by Chien et al. [I] showed a dependence on pressure gradient and pore diameter that, at the time of publication, did not permit an easy interpretation of the hemolytic mechanism. Acting on the assumption that thresholds of hemolysis are easier to correlate with physical forces than extents of hemolysis, we performed a series of experi ments repeating some of the conditions reported in [I] and then focusing on low L1P in order to define better the thresholds of hemolysis for several pore sizes. Employing a model of a deformed red cell shape at the pore entrance (based on micropipette observations) we related the force field in the fluid to a biaxial tension in the membrane. The threshold for lysis correlated with a membrane tension of 30 dynes/cm. This quantity is in agreement with lysis data from a number of other investigators employing a variety of mechanisms for introduc ing membrane tension. The sequence of events represented here is: a. Fluid forces and pressure gradients deform the cell into a new, elongated shape. b. Extent of deformation becomes limited by the resistance of the cell mem brane to undergo an increase in area. c. Fluid forces and pressure gradients acting on the deformed cell membrane cause an increase in biaxial tension in the membrane. d. When the strain caused by this tension causes pores to open in the membrane, the threshold for hemolysis has been reached [2].
Book Synopsis The Red Blood Cell by : Douglas MacN. Surgenor
Download or read book The Red Blood Cell written by Douglas MacN. Surgenor and published by Academic Press. This book was released on 2013-10-22 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Red Blood Cell, Second Edition, Volume II provides a comprehensive treatment and review of basic biomedical knowledge about the circulating, adult red blood cell. This book discusses the transport through red cell membranes; carrier-mediated glucose transport across human red cell membranes; and metabolism of methemoglobin in human erythrocytes. The interaction of oxygen and carbon dioxide with hemoglobin at the molecular level; physiological role of the oxyhemoglobin dissociation curve; hemoglobinopathies; and thalassemia syndromes are also deliberated. This publication likewise covers the red cell genetic polymorphisms; biological life of the red cell; clinical indications for red cells and blood; and biophysical behavior of red cells in suspensions. Other topics include the electrokinetic behavior of red cells; erythrocyte as a biopsy tissue in the evaluation of nutritional status; and knowledge of red cell purine and pyrimidine metabolism coming from the study of human disease. This volume is recommended for students, researchers, teachers, and physicians aiming to acquire knowledge of the red blood cell.
Book Synopsis Blood Cells, Rheology and Aging by : Dieter Platt
Download or read book Blood Cells, Rheology and Aging written by Dieter Platt and published by Springer. This book was released on 1988 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the third Erlangen-Nuremberg symposium on experimental geronto logy we discussed the effect of aging on blood cells and rheology. Most studies with red cells have been performed on humans, rats, and rabbits. All these erythrocytes have no nucleus; the cells are therefore a model in which new synthesis of proteins is impossible. All the processes are age dependent except for exchange with the plasma. Investigations of red cells have attracted attention because of the latter's availability in large quantities from biochemists, physiologists, immunologists, and micro scopists. We now have a relative abundance of data on the biochemical and immunologic composition as well as on the ultrastructure of the cells. The second topic under discussion at the symposium was the immune system and cell receptors. One of the most apparent features of aging of the organism is progressive dysregulation of the immune system. As a result, the incidence of infection, cancer, and autoimmune and immune complex diseases increases. While we have a lot of new data on the function and differentiation of lymphoid cells, we have little informa tion on lymphocyte receptors during the aging process. Rheologic studies reflect changes in red cell deformability and blood coagulation. The erythrocyte deformability influences blood flow in all parts of the circulation. The fluidity of the red cell membranes controls whole blood viscosity. During aging, there are significant alterations in blood coagulation and hemostasis. One of the best known modifications of blood co agulation is a typical thrombophilic tendency with aging.
Book Synopsis Clinical Blood Rheology by : Gordon D.O. Lowe
Download or read book Clinical Blood Rheology written by Gordon D.O. Lowe and published by CRC Press. This book was released on 2019-06-04 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published in 1988: Study of blood flow properties (rheology) has attracted growing interest from clinicians in recent years. A United Kingdom meeting and a European meeting in 1979 resulted in previous publications summarizing the literature up to that time.
Book Synopsis Red Blood Cells at the Mount of Truth: Highlights of the 22nd Meeting of the European Red Cell Research Society by : Anna Bogdanova
Download or read book Red Blood Cells at the Mount of Truth: Highlights of the 22nd Meeting of the European Red Cell Research Society written by Anna Bogdanova and published by Frontiers Media SA. This book was released on 2021-01-06 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Issues in Circulatory and Lymphatic Research: 2011 Edition by :
Download or read book Issues in Circulatory and Lymphatic Research: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Circulatory and Lymphatic Research: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Circulatory and Lymphatic Research. The editors have built Issues in Circulatory and Lymphatic Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Circulatory and Lymphatic Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Circulatory and Lymphatic Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis Red Blood Cell Aggregation Characterization by : Rym Mehri
Download or read book Red Blood Cell Aggregation Characterization written by Rym Mehri and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Red blood cells (RBCs) are the most abundant cells in human blood, representing 40 to 45% of the blood volume (hematocrit). These cells have the particular ability to deform and bridge together to form aggregates under very low shear rates. The theory and mechanics behind aggregation are, however, not yet completely understood. The purpose of this work is to provide a novel method to analyze, understand and mimic blood behaviour in microcirculation. The main objective is to develop a methodology to quantify and characterize RBC aggregates and hence enhance the current understanding of the non-Newtonian behaviour of blood at the microscale. For this purpose, suspensions of porcine blood and human blood are tested in vitro in a Poly-di-methylsiloxane (PDMS) microchannel to characterize RBC aggregates within these two types of blood. These microchannels are fabricated using standard photolithography methods. Experiments are performed using a micro Particle Image Velocimetry ( PIV) system for shear rate measurements coupled with a high speed camera for the flow visualization. Corresponding numerical simulations are conducted using a research Computational Fluid Dynamic (CFD) solver, Nek5000, based on the spectral element method solution to the incompressible non-Newtonian Navier-Stokes equations. RBC aggregate sizes are quantified in controlled and measurable shear rate environments for 5, 10 and 15% hematocrit. Aggregate sizes are determined using image processing techniques. Velocity fields of the blood flow are measured experimentally and compared to numerical simulations using simple non-Newtonian models (Power law and Carreau models). This work establishes for the first time a relationship between RBC aggregate sizes and corresponding shear rates in a microfluidic environment as well as one between RBC aggregate sizes and apparent blood viscosity at body temperature in a microfluidic controlled environment. The results of the investigation can be used to help develop new numerical models for non-Newtonian blood flow, provide a better understanding of the mechanics of RBC aggregation and help determine aggregate behaviour in clinical settings such as for degenerative diseases like diabetes and heart disease.
Book Synopsis Red Cell Deformability and Filterability by : John A. Dormandy
Download or read book Red Cell Deformability and Filterability written by John A. Dormandy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an edited verbatim account of the proceedings of the Second London Workshop on Red Cell Filtration and Deformability, organised jointly by the Royal Society of Medicine and the Groupe de Travail sur la Filtration Erythrocytaire. The first such London Workshop was held on the occasion of the Second European Conference on Clinical Haemorheology in 1981 and its con clusions were published in an abbreviated form. The interest in blood filtration as a technique for assessing red cell deformability has continued to increase and there are now several hundred centres around the world using some form of filtration. It was, therefore, felt that the informal detailed discussions held by a small invited group of experts from many countries would be of more general interest and therefore worth publishing. This has been made possible by the continued interest and generous support of Hoechst. Spontaneous open discussion rather than formal presentations has been the hallmark of these workshops, with precirculation of all scientific data to the participants. We have attempted to preserve this flavour in editing the transcript of the proceedings. This, together with our anxiety for rapid publication, may have resulted in a less than finely polished text which may contain some in accuracies. The topics discussed were loosely structured into eight sessions, outlined in the accompanying programme.
Book Synopsis Rheological and Electrical Properties of Red Blood Cells and Their Ghosts by : Stephen Paine Akeson
Download or read book Rheological and Electrical Properties of Red Blood Cells and Their Ghosts written by Stephen Paine Akeson and published by . This book was released on 1982 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Rheology of Blood, Blood by : D.R. Gross
Download or read book The Rheology of Blood, Blood written by D.R. Gross and published by Springer. This book was released on 1981-09-30 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rheological Properties of Red Blood Cells by : Matthias Brust
Download or read book Rheological Properties of Red Blood Cells written by Matthias Brust and published by . This book was released on 2013 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Red Cell Rheology (I) by : Stephen B. Shohet
Download or read book Red Cell Rheology (I) written by Stephen B. Shohet and published by . This book was released on 1977 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physical Characterization of Red Blood Cell Aggregation by : Daniel Flormann
Download or read book Physical Characterization of Red Blood Cell Aggregation written by Daniel Flormann and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rheology of Blood in Diagnostic and Preventive Medicine by : Leopold Dintenfass
Download or read book Rheology of Blood in Diagnostic and Preventive Medicine written by Leopold Dintenfass and published by . This book was released on 1976 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
