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Red Cell Aggregation as a Cause of Blood-Flow Echogenicity

The role of red cell aggregation as a cause of ultrasonic echogenicity in flowing blood was evaluated by in vitro experiments using fresh human blood. Blood was circulated in tubes of varying diameter (12 mm to 6 mm). In all experiments, echogenicity increased as blood approached static conditions.

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Aggregation of red blood cells: From rouleaux to clot ...

2013-6-1  Red blood cells are known to form aggregates in the form of rouleaux. This aggregation process is believed to be reversible, but there is still no full understanding on the adhesion mechanism. There are at least two competing models, based either on bridging or on depletion. We review recent experimental results on the single cell level and ...

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Red cell aggregation in blood flow SpringerLink

The apparent viscosity of blood strongly increases at low shear in rotational viscometers, this phenomenon is based on the reversible formation of red cell aggregates. The magnitude of this increase strongly depends on the hematocrit value, on plasma viscosity and lastly on the microrheological properties of the aggregates. The independent measurement of the microrheological behavior and the ...

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Red cell aggregation in blood flow SpringerLink

Both in normal and abnormal blood, red cell aggregation is a reversible process in the presence of adequate shear forces; their respective influences on apparent blood viscosity at low rates of shear are complex functions of shear rate, shear time, hematocrit and plasma viscosities.

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Blood cell transport and aggregation using discrete ...

2009-10-1  1.. IntroductionRed blood cells (RBCs) in arterial flows adhere to each other to form chains, called rouleaux, and other aggregate shapes which modify the apparent viscosity of whole blood, leading to shear-thinning behavior , and modify the concentration profile of the RBCs within the vessel.Other properties affected by RBC aggregation are the distribution of leukocytes and platelets , the ...

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Modulation of red blood cell aggregation and blood ...

Blood viscosity was measured at a range of shear rates (0.1-94.5 s(-1)) and at 25 and 37 degrees C using a Contraves LS-30 couette low shear viscometer. RBC aggregation and whole blood viscosity was modified in a predictable manner depending upon the CMT of the attached Pluronic and the measurement temperature: below the CMT, RBC aggregation ...

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Red Blood Cell Aggregation - 1st Edition - Oguz K. Baskurt ...

2019-10-2  The first book to offer a comprehensive review of the subject, Red Blood Cell Aggregation tackles these and other questions related to red blood cell (RBC) aggregates. The book covers basic, clinical, and physiological aspects of this important biophysical phenomenon and integrates these areas with concepts in bioengineering. It brings together ...

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Analysis of Cell Aggregation In Thawed Hematopoietic

2010-11-19  Cell aggregation can be observed after thawing cryopreserved hematopoietic stem cell products used in transplantation. Micro-flow imaging (MFI) is a novel method of imaging biologic fluids and provides a means of quantifying cell aggregation.

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Red cell aggregation and viscoelasticity of blood from ...

Red cell aggregation and viscoelasticity of blood from seals, swine and man. Wickham LL (1), Bauersachs RM, Wenby RB, Sowemimo-Coker S, Meiselman HJ, Elsner R. Author information: (1)Institute of Marine Science, University of Alaska, Fairbanks 99775. RBC aggregation and viscoelasticity parameters were determined for 40% suspensions of washed ...

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Rheology of red blood cell aggregation by computer

2008-11-10  The aggregation of human red blood cells (RBC) is a dominant factor of the in vitro rheological properties of blood. Past studies on RBC aggregation [1–3] have confirmed the effects of fibrinogen (a cross-linking pro-tein) concentration on RBC aggregation. Due to the presence of fibrinogen on cell membranes and globulin in

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Red Blood Cell Aggregation Oguz Baskurt, Björn Neu ...

2014-11-6  Comparative Aspects of Red Blood Cell Aggregation. 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

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Decreased red blood cell aggregation subsequent to ...

Aims: Reports of rheological changes following intensification of metabolic control are limited and not concordant. The present study was designed to test the hypothesis that intensification of management of Type 2 diabetes (T2DM) with diet, exercise and insulin improves haemorheological behaviour by reducing red blood cell (RBC) aggregation.

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Red blood cell aggregation

Red blood cell aggregation. 出版社:Boca Raton : CRC Press, c2012. ISBN:9781439841808. 出版年:2012. 作者:Baskurt Oguz. 资源类型: 图书. 细分类型:西文文献. 收藏单位. 馆藏地.

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WikiGenes - Cell Aggregation

We here describe the triggering of homotypic cell aggregation of peripheral blood T lymphocytes and myelomonocytic cells by mAbs specific for certain epitopes of the human VLA alpha 4 subunit . These findings suggest that Sp17 promotes heparan sulfate -mediated cell aggregation and thereby plays a role in regulating adhesion and migration of ...

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Red Blood Cell Aggregation - 1st Edition - Oguz K. Baskurt ...

2019-10-2  The first book to offer a comprehensive review of the subject, Red Blood Cell Aggregation tackles these and other questions related to red blood cell (RBC) aggregates. The book covers basic, clinical, and physiological aspects of this important biophysical phenomenon and integrates these areas with concepts in bioengineering. It brings together ...

Get Price

Rheology of red blood cell aggregation by computer

2008-11-10  The aggregation of human red blood cells (RBC) is a dominant factor of the in vitro rheological properties of blood. Past studies on RBC aggregation [1–3] have confirmed the effects of fibrinogen (a cross-linking pro-tein) concentration on RBC aggregation. Due to the presence of fibrinogen on cell membranes and globulin in

Get Price

Red cell aggregation and viscoelasticity of blood from ...

Red cell aggregation and viscoelasticity of blood from seals, swine and man. Wickham LL (1), Bauersachs RM, Wenby RB, Sowemimo-Coker S, Meiselman HJ, Elsner R. Author information: (1)Institute of Marine Science, University of Alaska, Fairbanks 99775. RBC aggregation and viscoelasticity parameters were determined for 40% suspensions of washed ...

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Aggregation of red blood cells in patients with Gaucher ...

2006-7-18  Red blood cell aggregation and biochemical markers of inflammation were compared between patients and control subjects. Comparisons were also made between sub-groups of patients on the basis of treatment status, spleen status, SSI and genotype. RBC aggregation. Blood for RBC aggregation studies was drawn into tubes containing EDTA.

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Red Blood Cell Aggregation Characterization

2020-7-23  Red Blood Cell Aggregation Characterization Using Norland Optical Adhesive Microfluidic Chips for a Reduction in Compliance by Curtis James Karns Armstrong Thesis submitted to the University of Ottawa In partial Fulfillment of the requirements for M.A.Sc. Degree in Biomedical Engineering Ottawa-Carleton Institute of Biomedical Engineering

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Quantifying Fibrinogen-Dependent Aggregation of Red

Fibrinogen is regarded as the main glycoprotein in the aggregation of red blood cells (RBCs), a normally occurring phenomenon that has a major impact on blood rheology and hemodynamics, especially under pathological conditions, including type 2 diabetes mellitus (T2DM). In this study, we investigate the fibrinogen-dependent aggregation dynamics of T2DM RBCs through patient-specific predictive ...

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Red Blood Cell Aggregation Oguz Baskurt, Björn Neu ...

2014-11-6  Comparative Aspects of Red Blood Cell Aggregation. 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

Get Price

WikiGenes - Cell Aggregation

We here describe the triggering of homotypic cell aggregation of peripheral blood T lymphocytes and myelomonocytic cells by mAbs specific for certain epitopes of the human VLA alpha 4 subunit . These findings suggest that Sp17 promotes heparan sulfate -mediated cell aggregation and thereby plays a role in regulating adhesion and migration of ...

Get Price

Red Blood Cell Aggregation - 1st Edition - Oguz K. Baskurt ...

2019-10-2  The first book to offer a comprehensive review of the subject, Red Blood Cell Aggregation tackles these and other questions related to red blood cell (RBC) aggregates. The book covers basic, clinical, and physiological aspects of this important biophysical phenomenon and integrates these areas with concepts in bioengineering. It brings together ...

Get Price

OSA Measurement of red blood cell aggregation using X ...

H. J. Meiselman, “Red blood cell aggregation: 45 years being curious,” Biorheology 46(1), 1–19 (2009). [PubMed] O. K. Baskurt and H. J. Meiselman, “RBC aggregation: more important than RBC adhesion to endothelial cells as a determinant of in vivo blood flow in health

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Download Red Blood Cell Aggregation Book My Spex

2011-9-28  Red Blood Cell Aggregation. 2011-09-28 by 2011-09-28. Author: Oguz Baskurt; Publisher: CRC Press ISBN: 9781439841808 Category: Medical Page: 318 View: 291 Get EBOOK » Red Blood Cell Aggregation 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.

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Red Blood Cell Aggregation Characterization

2020-7-23  Red Blood Cell Aggregation Characterization Using Norland Optical Adhesive Microfluidic Chips for a Reduction in Compliance by Curtis James Karns Armstrong Thesis submitted to the University of Ottawa In partial Fulfillment of the requirements for M.A.Sc. Degree in Biomedical Engineering Ottawa-Carleton Institute of Biomedical Engineering

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Effects of red blood cell aggregation on the blood flow in ...

In order to figure out whether red blood cell (RBC) aggregation is beneficial or deleterious for the blood flow through a stenosis, fluid mechanics of a microvascular stenosis was examined through simulating the dynamics of deformable red blood cells suspended in plasma using dissipative particle dynamics.

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Red blood cell aggregation, disaggregation and aggregate ...

Le Devehat C , Vimeux M , Bondoux G , Bertrand A. Red blood cell aggregation and disaggregation in diabetes mellitus. Clin Hemorheol Microcirc. 1989;9(5):845–54. [20] Schmid-Schönbein H , von Gosen J , Heinich JL , Klose HJ , Volger E.

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Aggregation of red blood cells in patients with Gaucher ...

2006-7-18  Red blood cell aggregation and biochemical markers of inflammation were compared between patients and control subjects. Comparisons were also made between sub-groups of patients on the basis of treatment status, spleen status, SSI and genotype. RBC aggregation. Blood for RBC aggregation studies was drawn into tubes containing EDTA.

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Red Blood Cell Aggregation in Preterm and Term

ABSTRACT: Aggregation of red blood cells (RBC) is a major determinant of blood viscosity and of blood circulation through vessels with slow flow (i.e. veins). RBC aggregation and plasma fibrinogen ...

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