Erythrocytes sedimentation profiles under gravitational field as determined by He-Ne laser. VII. Influence of dextrans, albumin and saline on cellular aggregation and sedimentation rate.

abstract：:A generalized dispersion model is used to obtain exact solution for unsteady convective diffusion in the presence of couple stresses. The effect of the couple stress parameter 'a' on the most dominant dispersion coefficient is clearly depicted. The dimensionless mean concentration distribution is obtained as a functio...

journal_title：Biorheology

authors： Rudraiah N,Pal D,Siddheshwar PG

更新日期：1986-01-01 00:00:00

abstract：:The purpose of this study was to examine the theoretical impact of the local bifurcation geometry on the shear rate gradient in a divergent arteriolar-type bifurcation. Newtonian flow through an arteriolar bifurcation was modeled using 3-dimensional computational fluid dynamics (CFD). Branching angles of 30 degrees, 5...

journal_title：Biorheology

authors： Noren D,Palmer HJ,Frame MD

更新日期：2000-01-01 00:00:00

abstract：:The goal of this study was to determine the duration of time that ligaments from a study group need to be loaded in order to adequately determine their collective viscoelastic behavior. Rat ligaments were subjected either to creep or stress relaxation for 1,000 s or stress relaxation for 10,000 s to compare estimates ...

journal_title：Biorheology

authors： Manley E Jr,Provenzano PP,Heisey D,Lakes R,Vanderby R Jr

更新日期：2003-01-01 00:00:00

abstract：:The literature review about the shear linear properties of brain tissue reveals both a large discrepancy in the existing data and a crucial lack of information at high frequencies associated with traffic road and non-penetrating ballistic impacts. The purpose of this study is to clarify and to complement the linear ma...

journal_title：Biorheology

authors： Nicolle S,Lounis M,Willinger R,Palierne JF

更新日期：2005-01-01 00:00:00

abstract：:Flow-induced changes in the red cell microstructure of human blood are identified from mechanical and optical evidence. On initiation of steady flow, a new microstructure develops as the shear strain increases through unit strain. This structure is identified with the formation of layers of red cells that slide on pla...

journal_title：Biorheology

authors： Thurston GB

更新日期：1994-03-01 00:00:00

abstract：:The membrane shear elastic modulus (mu) and the time constant for extensional shape recovery (tc) were measured for normal, control human red blood cells (RBC) and for RBC heat treated (HT) at 48 degrees C. Three separate methods for the measurement of mu were compared (two used a micropipette and one employed a flow ...

journal_title：Biorheology

authors： Nash GB,Meiselman HJ

更新日期：1985-01-01 00:00:00

abstract：BACKGROUND:Acute hemorheological responses to different types of aerobic exercises have never been compared in a single study in healthy people. OBJECTIVE:We aimed to compare acute effects of high intensity intermittent exercise (HIIE) and moderate intensity continuous exercise (MICE) on hemorheological parameters, in...

journal_title：Biorheology

authors： Findikoglu G,Kilic-Toprak E,Kilic-Erkek O,Senol H,Bor-Kucukatay M

更新日期：2014-01-01 00:00:00

abstract：:We present data which show that fibrin gels are ordered network structures, the porosity of which is determined by the amount of thrombin being present during the activation step preceding gelation. On activation of fibrinogen, fibrinopeptides are released and simultaneously polymers are formed, obeying apparent first...

journal_title：Biorheology

authors： Blombäck B,Okada M,Forslind B,Larsson U

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND:Ultrasound elastography has been widely used to measure liver stiffness. However, the accuracy of liver viscoelasticity obtained by ultrasound elastography has not been well established. OBJECTIVE:To assess the accuracy of ultrasound elastography for measuring liver viscoelasticity and compare to convention...

journal_title：Biorheology

authors： Lin H,Shen Y,Chen X,Zhu Y,Zheng Y,Zhang X,Guo Y,Wang T,Chen S

更新日期：2016-01-01 00:00:00

abstract：:Platelet margination (enhanced platelet concentration in the near wall region of a blood vessel) has been well documented in small vessels. In artery-sized vessels margination has only been demonstrated in one study, using ghost cell suspensions and under relatively non-physiologic conditions of steady flow and 50 cm ...

journal_title：Biorheology

authors： Xu C,Wootton DM

更新日期：2004-01-01 00:00:00

abstract：:The electrical properties of red blood cell (RBC) suspensions are influenced by flow conditions, and prior studies indicate that electrical properties may reflect the kinetics of RBC aggregation. Changes of conductance and capacitance were monitored and had a time course resembling a "syllectogram" (i.e., temporal cha...

journal_title：Biorheology

authors： Baskurt OK,Uyuklu M,Meiselman HJ

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:Biological cells exhibit complex mechanical properties which determine their responses to applied force. OBJECTIVE:We developed an optical method to probe the temporal evolution of power-law rheology of single cells. METHODS:The method consisted in applying optically a constant mechanical torque to a biref...

journal_title：Biorheology

authors： de Saint Vincent MR

更新日期：2016-05-26 00:00:00

abstract：:Plasma fractionation by membrane filtration permits the reinfusion of the patient with his own albumin. In this study, the influence of membrane nature and plasma flux on plasma fractionation in dead-end mode is investigated with acetate hollow fiber filters. It is found that transmembrane pressure TMP rises exponenti...

journal_title：Biorheology

authors： Charcosset C,Ding LH,Jaffrin MY

更新日期：1991-01-01 00:00:00

abstract：BACKGROUND:RRx-001 is an anti-cancer immunotherapeutic that increases the sensitivity of drug resistant tumors via multiple mechanisms which involve binding to hemoglobin and enhancing nitrite reductase activity of deoxyhemoglobin. OBJECTIVE:In the present study, the effect of clinically used doses of RRx-001 on eryth...

journal_title：Biorheology

authors： Cirrik S,Ugurel E,Aksu AC,Oronsky B,Cabrales P,Yalcin O

更新日期：2019-01-01 00:00:00

abstract：:The Cell Transit Analyser (CTA) provides a means to rapidly measure the deformability of large numbers of individual cells. It combines many of the advantages of micropipette studies with the simplicity and speed of filtrometry methods by measuring the duration of each resistive pulse generated as a cell passes throug...

journal_title：Biorheology

authors： Fisher TC,Wenby RB,Meiselman HJ

更新日期：1992-03-01 00:00:00

abstract：:Shear stress-induced platelet aggregation requires von Willebrand factor (vWF), platelet glycoprotein (GP) Ib, GPIIb-IIIa, Ca2+, and adenosine diphosphate (ADP). Recent reports using vWF labeled with either 125I or fluorescein isothiocyanate (FITC) have demonstrated that in shear-fields, vWF binds to both GPIb and GPI...

journal_title：Biorheology

authors： Konstantopoulos K,Chow TW,Turner NA,Hellums JD,Moake JL

更新日期：1997-01-01 00:00:00

abstract：:Atherosclerosis is the most frequent cause of death and severe chronic disability in North America and Europe. The atherosclerosis-prone apolipoprotein E (apoE)-deficient mice contain the entire spectrum of lesions observed during atherogenesis. Significant remodelling of the artery occurs in atherosclerosis. The aim ...

journal_title：Biorheology

authors： Gregersen H,Zhao J,Lu X,Zhou J,Falk E

更新日期：2007-01-01 00:00:00

abstract：:Aggregation of human red blood cells (RBCs) induced by dextrans of various molecular weight has been studied by using a new ultrasonic interferometry method. This method, based on A-mode echography, allowed for the measurement of the accumulation rate of particles on a solid plate which is related to their sedimentati...

journal_title：Biorheology

authors： Razavian SM,Guillemin MT,Guillet R,Beuzard Y,Boynard M

更新日期：1991-01-01 00:00:00

abstract：:A model of intima thickening proposed by Friedman and his coworkers (1,2) is incorporated in our computer code to simulate the growth of intima under shear. The computer code is based on a finite volume method in a boundary-fitted coordinate system. It is found that the model yields an evenly-distributed thickening ov...

journal_title：Biorheology

authors： Lee D,Chiu JJ

更新日期：1992-03-01 00:00:00

abstract：:During the recent years various investigators have developed the technique of kryophotometric measurements of oxyhemoglobin saturation with oxygen (psi) in small vessels. In this paper, on the basis of the statistical model of the organ developed by the authors, a theoretical relationship is established between the di...

journal_title：Biorheology

authors： Sharikov AN,Zaiko VM

更新日期：1982-01-01 00:00:00

abstract：BACKGROUND:In the microcirculation, red blood cells (RBCs) were observed to be confined to an axial stream surrounded by a marginal RBC depleted layer. This axial accumulation of RBCs is considered to arise from the RBC deformability. OBJECTIVE:To quantitatively evaluate the effect of RBC deformability on their axial ...

journal_title：Biorheology

authors： Sasaki T,Seki J,Itano T,Sugihara-Seki M

更新日期：2018-01-01 00:00:00

abstract：:Although most apparent in permanently misshapen irreversibly sickled erythrocytes (ISC), biochemical and structural alterations are present in the majority of sickle cell membranes. The relationship of membrane rigidity to cell shape and its dependence upon the internal hemoglobin cytosol are not clarified. We therefo...

journal_title：Biorheology

authors： Drasler WJ,Smith CM 2nd,Keller KH

更新日期：1989-01-01 00:00:00

abstract：:There have been few reports describing the effects of mechanical loading on the metabolism of meniscal cells. The aim of this study was to investigate the effects of hydrostatic pressure on meniscal cell metabolism. Human meniscal cells were cultured in alginate beads for 3 days. They were then subjected to 4 MPa hydr...

journal_title：Biorheology

authors： Suzuki T,Toyoda T,Suzuki H,Hisamori N,Matsumoto H,Toyama Y

更新日期：2006-01-01 00:00:00

abstract：:In vitro experiments were conducted to measure the oscillatory flow pressure gradient along an elastic tube in order to assess the recent nonlinear theory of Wang and Tarbell. According to this theory, in an elastic tube with oscillatory flow, the mean (time-averaged) pressure gradient cannot be calculated using Poise...

journal_title：Biorheology

authors： Cohen MI,Wang DM,Tarbell JM

更新日期：1995-07-01 00:00:00

abstract：:The thixotropic parameters of whole blood from 314 healthy subjects (154 women, 160 men) were measured with our modified method by Low shear 30 Rheometer and calculated according Huang's equation. This communication offered the reference range of thixotropic parameters from man and woman group. The results demonstrate...

journal_title：Biorheology

authors： Chen HQ,Zhong GH,Li L,Wang XY,Zhou T,Chen ZY

更新日期：1991-01-01 00:00:00

abstract：:In channel flow of multicomponent suspensions, segregation behavior of suspended components perpendicular to the flow direction is often observed, which is considered to be caused by the differential properties of the lateral migration depending on their shape, size, flexibility, and other characteristics. In the pres...

journal_title：Biorheology

authors： Makino M,Sugihara-Seki M

更新日期：2013-01-01 00:00:00

abstract：:Stress relaxation regimes arising in a muscle subject to stepwise deformation are described on the basis of a recent phenomenological model of fully activated muscle tissue which is presented in the form of a second-order constitutive equation. It is shown that this model reproduces the qualitative form of relaxation ...

journal_title：Biorheology

authors： Timanin EM

更新日期：1984-01-01 00:00:00

abstract：:Since the sweet ketohexose L-sorbose causes overt hemolysis in dogs but not in man, we examined the possibility that L-sorbose induces a "prehemolytic state" of human red cells, manifesting itself as impairment of rheological red cell properties. After 2 hours incubation at 37 degrees C relative viscosity of red cell ...

journal_title：Biorheology

authors： Stäubli M,Wälchli P,Straub PW

更新日期：1985-01-01 00:00:00

abstract：:Different methods are commonly used to study the red blood cell aggregation phenomenon. The major interest of the ultrasonic method presently discussed is to assess the mean size of red blood cell (RBC) aggregates by measuring ultrasonic intensity backscattered by blood. Applying Rayleigh theory of sound to blood medi...

journal_title：Biorheology

authors： Boynard M,Lelievre JC

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Blood flow in stenotic vessels strongly influences the progression of vascular diseases. Plaques in stenotic blood vessels vary in stiffness, which influences plaque behavior and deformation by pressure and flow. Concurrent changes in plaque geometry can, in turn, affect blood flow conditions. Thus, simultan...

journal_title：Biorheology

authors： Shimizu Y,Ohta M

更新日期：2015-01-01 00:00:00