Viscosity and order in erythrocyte membranes studied with nanosecond fluorometry.

abstract：:This paper proposes a model for wall shear stress in arterial stenosis based on boundary layer theory. Wall shear stress estimates are obtained by solving the momentum integral equation using the method proposed by Walz and applying this method to various stenosis geometries for Reynolds numbers (Re) of Re = 59-1000. ...

journal_title：Biorheology

authors： Provenzano PP,Rutland CJ

更新日期：2002-01-01 00:00:00

abstract：:The structure of pulsatile flow in a rigid aortic bifurcation model was studied by means of a flow visualization technique and three-dimensional laser-Doppler anemometry. The model was made of glass, having the same shape as that of the average human aortic bifurcation. It was installed into a mock circulatory loop th...

journal_title：Biorheology

authors： Naiki T,Hayashi K,Takemura S

更新日期：1995-01-01 00:00:00

abstract：:The effects of platelet margination and enhanced platelet diffusivity, as induced by red blood cells, on the adhesion of platelets, were investigated for a range of haematocrits, under 2D axi-symmetric flow, simulating previous in vitro experiments [Microvasc. Res. 17 (1979), 238-262]. The effect of margination was in...

journal_title：Biorheology

authors： Jordan A,David T,Homer-Vanniasinkam S,Graham A,Walker P

更新日期：2004-01-01 00:00:00

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：BACKGROUND:Osteoarthritis is a common, localized joint disease that causes pain, stiffness and reduced mobility. Osteoarthritis is particularly common in the knees. The effects of osteoarthritis on the rheology of synovial fluid in the knees are not fully understood and consequently require further study. OBJECTIVE:Th...

journal_title：Biorheology

authors： Madkhali A,Chernos M,Grecov D,Kwok E

更新日期：2016-11-09 00:00:00

abstract：:A study using both experimental and numerical methods was conducted to determine flow dynamics in the vicinity of an end-to-end anastomosis. In vitro experiments were performed to determine the variations in the conduit cross-section at the anastomosis in specimens under static loading. The experimentally determined g...

journal_title：Biorheology

authors： Kim YH,Chandran KB

更新日期：1993-03-01 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：:The presented paper is based on the conclusions of the preceding paper (1). On the basis of a general theoretical approach to the mechanics of heterogeneous materials published earlier / (2) , (3) , (4) / macroscopic constitutive equation of trabecular bone is deduced from the description of its microstructure. For th...

journal_title：Biorheology

authors： Kafka V,Jírová J

更新日期：1983-01-01 00:00:00

abstract：:The application of principles of biorheology, hemorheology and perihemorheology on problems of the nervous system in health and disease was suggested by Alfred L. Copley (1982, 1987). Late in 1988 Copley and Sourander considered neurobiorheology to be an appropriate term for a new branch of biorheology bridging the ga...

journal_title：Biorheology

authors： Sourander P

更新日期：1991-01-01 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：:Pentoxifylline (PTX) has been reported to enhance the early accumulation of neutrophils at the site of Staphylococcus aureus subcutaneous infection in mice (1) and to stimulate in vitro PMN chemotaxis, particularly under dense agarose (2). Among the biochemical events contributing to chemotaxis are actin polymerizatio...

journal_title：Biorheology

authors： Freyburger G,Belloc F,Boisseau MR

更新日期：1990-01-01 00:00:00

abstract：:A dilute suspension of Spirulina Microalgae is found to exhibit radial migration in laminar flow in a 650 micron vertical tube. As the tube Reynolds number increases, the particles concentrate in a narrower region around the tube axis. When the turbulent regime is approached, the particles disperse as expected. ...

journal_title：Biorheology

authors： Rakow AL,Chappell ML

更新日期：1987-01-01 00:00:00

abstract：BACKGROUND:Exposure to particulate air pollution is associated with an increased risk of cardiovascular disease. The mechanism by which exposure increases risk is poorly understood but could involve changes in the flow properties of blood. OBJECTIVE:The aim of this investigation was to assess the effect, in rats, of i...

journal_title：Biorheology

authors： Adams RA,Al-Mosawi A,Bérubé K,Jones T,Higgins T,Evans SA

更新日期：2014-01-01 00:00:00

abstract：:A fine structure of blood flow through a curved vessel with an aneurysm was studied in in vitro experiments in relation to rheological factors of arterial diseases such as arteriosclerosis or thrombosis. On the basis of the in vivo data related to cerebral circulation, red blood cell suspension was flowed through curv...

journal_title：Biorheology

authors： Niimi H,Kawano Y,Sugiyama I

更新日期：1984-01-01 00:00:00

abstract：:The assessment of vessel patency can be substantially improved by serial microvessel diameter measurements taken successively along an extensive length of the vessel. It is possible to avoid making the a priori assumptions about the existence or location of local constriction sites implicit in single diameter measurem...

journal_title：Biorheology

authors： Miles FP,Nuttall AL

更新日期：1991-01-01 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：:Ciliary metachronism and motility were examined optically in muco-ciliary tissue cultures from three different systems: a) frog's palate epithelium, b) frog's oesophagus, and c) human nasal polyps. In addition, lateral cilia of Mytilus edulis (water transporting cilia) were examined. It was revealed that the degree of...

journal_title：Biorheology

authors： Gheber L,Priel Z

更新日期：1990-01-01 00:00:00

abstract：:Mechanical forces influence articular cartilage structure by regulating chondrocyte activity. Mechanical stimulation results in activation of an alpha5beta1 integrin dependent intracellular signal cascade involving focal adhesion kinase and protein kinase C, triggering the release of interleukin-4 from the cell. In no...

journal_title：Biorheology

authors： Salter DM,Wright MO,Millward-Sadler SJ

更新日期：2004-01-01 00:00:00

abstract：:Over the past several decades, blood-soluble drag reducing polymers (DRPs) have been shown to significantly enhance hemodynamics in various animal models when added to blood at nanomolar concentrations. In the present study, the effects of the DRPs on blood circulation were tested in anesthetized rats exposed to acute...

journal_title：Biorheology

authors： Kameneva MV,Wu ZJ,Uraysh A,Repko B,Litwak KN,Billiar TR,Fink MP,Simmons RL,Griffith BP,Borovetz HS

更新日期：2004-01-01 00:00:00

abstract：:Blood vessels are always subjected to hemodynamic stresses including blood pressure and blood flow. The cerebral artery is particularly sensitive to hemodynamic stresses such as pressure and stretch, and shows contractions that are myogenic in nature; i.e., the mechanical response is generated by the vascular smooth m...

journal_title：Biorheology

authors： Nakayama K,Obara K,Tanabe Y,Saito M,Ishikawa T,Nishizawa S

更新日期：2003-01-01 00:00:00

abstract：:Magnitude and time-dependence of the effects of red cell aggregation and sedimentation on the rheology of human blood were studied during low shear (tau W 2.5 to 92 mPa) flow through horizontal tubes (ID 25 to 105 microns). Immediately following reduction of perfusion pressure to a low value the red cell concentration...

journal_title：Biorheology

authors： Alonso C,Pries AR,Gaehtgens P

更新日期：1989-01-01 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：: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：: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：:In the past few years there has been a considerable interest in the role of bone in osteoarthritis. Despite the increasing evidence of the involvement of bone in osteoarthritis, it remains very difficult to attribute the cause or effect of changes in subchondral bone to the process of osteoarthritis. Although osteoart...

journal_title：Biorheology

authors： Botter SM,van Osch GJ,Waarsing JH,Day JS,Verhaar JA,Pols HA,van Leeuwen JP,Weinans H

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:Parenteral nutrition (PN) is a hyperosmolar solution composed of glucose, amino acids and a lipid emulsion, which is often used despite well-known side effects and complications. OBJECTIVES:In this study the hypothesis was tested that PN could affect hemorheology. METHODS:The influence of increasing plasma...

journal_title：Biorheology

authors： Compagnoni SC,Schulzki T,Thoeny S,Reinhart WH

更新日期：2014-01-01 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：:In normal male rabbits loaded dietary cholesterol, intravital-microscopy revealed a marked acceleration of intravascular adhesiveness of white blood cells and aggregability of red blood cells and a swarming of lipid-laden macrophages in connective tissue space concurrently with a systemic hyperlipidemia and anemia. Po...

journal_title：Biorheology

authors： Asano M,Ohkubo C,Hirokawa A,Sasaki A,Tochihara Y,Chiba Y

更新日期：1988-01-01 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：BACKGROUND:Devices gauging viscoelastic properties of blood during coagulation like the thromboelastograph support fundamental research as well as point of care needs. Associated fibrinolysis data are based on endogenous species or plasminogen activator added to a homogeneous sample prior to clot formation. Digestion i...

journal_title：Biorheology

authors： Lee JS,Kaibara M,O'Rear EA

更新日期：2016-07-29 00:00:00