The role of aggregation kinetics in the sedimentation of erythtocytes.

abstract：:The purpose of the present study was to investigate the intracellular IL-1beta production and beta1 integrins (alpha4/beta1 and alpha5/beta1) expression on chondrocytes. Chondroytes monolayer (human chondrosarcoma cell line HEM-C55) were incubated for 12, 24 and 48 hours in the presence of Tumor Necrosis Factor-alpha ...

journal_title：Biorheology

authors： Gigant-Huselstein C,Dumas D,Payan E,Muller S,Bensoussan D,Netter P,Stoltz JF

更新日期：2002-01-01 00:00:00

abstract：:It is has been known for more than 80 years that compared to in vitro determinations, blood behaves as a less viscous fluid under in vivo flow conditions. The experiments of Whittaker and Winton were among the first dealing with the in vivo effects of altered blood rheology, and experimental studies during the second ...

journal_title：Biorheology

authors： Baskurt OK

更新日期：2008-01-01 00:00:00

abstract：:Hematocrit distribution and red blood cell aggregation are the major determinants of blood flow in narrow tubes at low flow rates. It has been observed experimentally that in microcirculation the hematocrit distribution is not uniform. This nonuniformity may result from plasma skimming and cell screening effects and a...

journal_title：Biorheology

authors： Das B,Johnson PC,Popel AS

更新日期：1998-01-01 00:00:00

abstract：:Sudden increase of viscosity in former times indicated the start of coagulation. Yet its measurement destroyed the structure of coagulum. By the precursor method of thrombelastography the author 1944 found elasticity to be the essential physiological property of coagulum. In the production of elastic fibrin structure ...

journal_title：Biorheology

authors： Hartert H

更新日期：1988-01-01 00:00:00

abstract：:The static and dynamic viscoelastic properties were studied of longitudinal and circumferential strips excised from various large veins of dogs. The mechanical behavior in longitudinal direction could be regarded as elastic, while that in circumferential direction was highly viscoelastic. No distinct regionality was o...

journal_title：Biorheology

authors： Hasegawa M

更新日期：1983-01-01 00:00:00

abstract：:In micropipette experiments with small capillaries and moderate high pressure difference (approximately 1000 Pa) cell fragmentation (fission) of human red blood cells without hemolysis was observed by TV-system for a large number of fresh red blood cells of different donors. After separation, the fragment moves away f...

journal_title：Biorheology

authors： Meier W,Lerche D,Wendt MO,Paulitschke M

更新日期：1987-01-01 00:00:00

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：:Stress relaxation in three varieties of cherries was studied using the penetration test with a cylindrical pin, 4 mm in diameter, having a flat tip. One half of the fruit was modified by partial skinning, since experiments show that skin approximately doubles the apparent modulus of elasticity of the cherries. The ski...

journal_title：Biorheology

authors： Blahovec J

更新日期：1996-11-01 00:00:00

abstract：:The purpose of this study was to determine the shear rate at the wall in a symmetrically branched tube with a branch-to-trunk area ratio and angle of branching that were comparable to the human abdominal aorta. Velocity profiles were measured with a laser Doppler anemometer during steady and pulsatile flow in which th...

journal_title：Biorheology

authors： Walburn FJ,Stein PD

更新日期：1982-01-01 00:00:00

abstract：:Elevated shear stress levels in pathologically stenosed vessels induce platelet activation and aggregation, and may play a role in the pathogenesis of arterial disease. Increased plasma catecholamine concentrations have also been implicated in the onset of acute coronary ischemic syndromes. This study was designed to ...

journal_title：Biorheology

authors： Wagner CT,Kroll MH,Chow TW,Hellums JD,Schafer AI

更新日期：1996-05-01 00:00:00

abstract：:Articular cartilage is a tissue designed to withstand compression during joint movement and, in vivo, is subjected to a wide range of mechanical loading forces. Mechanosensitivity has been demonstrated to influence chondrocyte metabolism and cartilage homeostasis, but the mechanisms underlying mechanotransduction in t...

journal_title：Biorheology

authors： D'Andrea P,Calabrese A,Capozzi I,Grandolfo M,Tonon R,Vittur F

更新日期：2000-01-01 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：: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 erythrocytes sedimentation profiles (ESP) of normal blood and of blood mixed with saline, albumin (7%), and various molecular weight dextrans of different concentrations, at various height and widths of the sample holder are determined. These observations show that the sedimentation characteristics of the erythroc...

journal_title：Biorheology

authors： Singh M,Joseph KP

更新日期：1987-01-01 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：: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：BACKGROUND:The contribution of proteoglycan 4 (PRG4) to synovial fluid and hyaluronan (HA) solution rheology are poorly understood. The effects of PRG4 disulfide-bonded structure on viscosity and viscosity of newly available full-length recombinant human PRG4 (rhPRG4) have not previously been reported. OBJECTIVE:This ...

journal_title：Biorheology

authors： Ludwig TE,Cowman MK,Jay GD,Schmidt TA

更新日期：2014-01-01 00:00:00

abstract：BACKGROUND:In order to play different roles in vascular functions as a mechanosensor to blood flows and as a barrier to transvascular exchange, the endothelial surface glycocalyx (ESG) should have an organized structure. Due to the limitations of optical and electron microscopy, the ultra-structure of ESG has not been ...

journal_title：Biorheology

authors： Fan J,Sun Y,Xia Y,Tarbell JM,Fu BM

更新日期：2019-01-01 00:00:00

abstract：:This study aims at quantifying the cellular mechanical properties based on a partitioning of the cytoskeleton in a cortical and a cytosolic compartments. The mechanical response of epithelial cells obtained by magnetocytometry - a micromanipulation technique which uses twisted ferromagnetic beads specifically linked t...

journal_title：Biorheology

authors： Laurent VM,Planus E,Fodil R,Isabey D

更新日期：2003-01-01 00:00:00

abstract：:Adhesion of monocytes (U-937 cells) along a silicone tube deployed with circular ring stents was studied to test the hypothesis that by intentionally inducing swirling flow in an endovascular stent, the adhesion of monocytes would be suppressed. The results revealed that under a normal flow condition, the flow disturb...

journal_title：Biorheology

authors： Chen Z,Zhang X,Deng X

更新日期：2012-01-01 00:00:00

abstract：:A non-biodegradable polyhedral oligomeric silsesquioxane (POSS) nanocomposite biopolymer has been developed for fabrication of medical devices and for tissue engineering human organs. The polymer in solution, containing 2 wt% of POSS, has been synthesized, characterized and investigated to determine its key rheologica...

journal_title：Biorheology

authors： Kidane AG,Edirisinghe MJ,Bonhoeffer P,Seifalian AM

更新日期：2007-01-01 00:00:00

abstract：:The rheological properties of the vitreous body of the eye are believed to be a function of composition and to differ among species, as well as to vary regionally within the vitreous. These properties are essential to the mechanical functioning of the eye. Although there are gross, qualitative data on vitreous rheolog...

journal_title：Biorheology

authors： Lee B,Litt M,Buchsbaum G

更新日期：1992-09-01 00:00:00

abstract：BACKGROUND:Postmenopausal women often develop hemorheological disorders which may affect the systemic blood circulation and present a cardiovascular risk factor. OBJECTIVE:We evaluated effects of secoisolariciresinol (SECO), a phytoestrogen, on hemorheological parameters and lipid peroxidation in a model of the age-re...

journal_title：Biorheology

authors： Maslov MY,Plotnikova TM,Anishchenko AM,Aliev OI,Nifantiev NE,Plotnikov MB

更新日期：2016-01-07 00:00:00

abstract：:Human red cell aggregability and disaggregability represent important hemorheological parameters of blood. Several techniques have been proposed to evaluate the tendency of red cells to form aggregates and to disrupt in the presence of shear stress. One of the most recent approaches is based on the characterization of...

journal_title：Biorheology

authors： Cloutier G,Shung KK

更新日期：1993-09-01 00:00:00

abstract：:This study examined the effects of mechanical compression on engineered cartilage in a novel hybrid culture system. Cylindrical holes were cut in discs of bovine articular cartilage and filled with agarose gels containing chondrocytes. These constructs were compressed in radiolabeled medium under static or oscillatory...

journal_title：Biorheology

authors： Hunter CJ,Levenston ME

更新日期：2002-01-01 00:00:00

abstract：:The rate of onset of erythrocyte flow orientation at normal concentration has not previously been established. Reflectivity of blood and resuspended non-aggregated red cells at normal (41%) and elevated (60%) hematocrit has been used to examine this process. Video recordings were made before, during, and after shearin...

journal_title：Biorheology

authors： McMillan DE,Utterback NG,Lee MM

更新日期：1988-01-01 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：:We have previously observed a stimulatory effect of fluid shear stress on the regeneration of cultured endothelial cell layers after mechanical denudation. In this study we examined how fluid shear stress affects endothelial cell DNA synthesis during regeneration. Following mechanical denudation of narrow linear areas...

journal_title：Biorheology

authors： Ando J,Komatsuda T,Ishikawa C,Kamiya A

更新日期：1990-01-01 00:00:00

abstract：:Under some conditions, such as inhalation injury, an array of longitudinal channels without cilia may be formed on the epithelial surface, affecting mucus transport in the lung during coughing. Moreover, in certain cases of the diseased state of the lung, immotile cilia remain embedded in the serous fluid and may form...

journal_title：Biorheology

authors： Agarwal M,King M,Shukla JB

更新日期：1994-01-01 00:00:00

abstract：:We previously reported that intraarticular injections of hyaluronan (HA), administered prophylactically to dogs in whom knee osteoarthritis had been induced by transection of the anterior cruicate ligament, did not significantly modify the intraarticular pathology but decreased the proteogylcan concentration of the ar...

journal_title：Biorheology

authors： Brandt KD,Smith GN,Myers SL

更新日期：2004-01-01 00:00:00