Cross-sectional distributions of normal and abnormal red blood cells in capillary tubes determined by a new technique.

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 compressive stiffness of an elastic material is traditionally characterized by its Young's modulus. Young's modulus of articular cartilage can be directly measured using unconfined compression geometry by assuming the cartilage to be homogeneous and isotropic. In isotropic materials, Young's modulus can also be de...

journal_title：Biorheology

authors： Saarakkala S,Korhonen RK,Laasanen MS,Töyräs J,Rieppo J,Jurvelin JS

更新日期：2004-01-01 00:00:00

abstract：:The blood flow immediately adjacent to the wall of a blood vessel or an artificial surface is of great interest. This flow defines the shear stress at the wall and is known to have a great physiological importance. The use of models is a viable method to investigate this flow. However, even in models the shear stress ...

journal_title：Biorheology

authors： Affeld K,Kertzscher U,Goubergrits L

更新日期：2002-01-01 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：: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：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：: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：BACKGROUND:Bile, which is secreted by the liver, is essential for digesting fat and maintaining homeostasis. Although the rheology of bile is very important to its flow, its extensional viscosity has not been studied. OBJECTIVE:We investigated the stretching of bile and evaluated its extensional viscosity using a fila...

journal_title：Biorheology

authors： Minh NN,Obara H,Shimokasa K,Zhu J

更新日期：2019-01-01 00:00:00

abstract：:Mechanical forces can stimulate the production of extracellular matrix molecules. We tested the efficacy of ultrasound to increase proteoglycan synthesis in bovine primary chondrocytes. The ultrasound-induced temperature rise was measured and its contribution to the synthesis was investigated using bare heat stimulus....

journal_title：Biorheology

authors： Kopakkala-Tani M,Leskinen JJ,Karjalainen HM,Karjalainen T,Hynynen K,Töyräs J,Jurvelin JS,Lammi MJ

更新日期：2006-01-01 00:00:00

abstract：:Flow-dependent concentration or depletion of atherogenic low density lipoproteins which has been theoretically predicted to occur at a blood/endothelium boundary may play an important role in the genesis, progression, and regression of atherosclerosis in man and intimal hyperplasia in vascular grafts implanted in the ...

journal_title：Biorheology

authors： Naiki T,Sugiyama H,Tashiro R,Karino T

更新日期：1999-01-01 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：:Through cardiac looping during embryonic development, human and other vertebrate hearts adopt sinuous curvatures with marked changes in direction of flow at atrial, ventricular and arterial levels. We used magnetic resonance phase velocity mapping to study flow through the hearts of resting volunteers, and Doppler ult...

journal_title：Biorheology

authors： Kilner PJ,Yang GZ,Firmin DN

更新日期：2002-01-01 00:00:00

abstract：:The relationships between mucus rheology, depth of mucus layer and clearance by simulated cough were examined in a study employing a model plexiglass trachea lined with gels formed from locust bean gum crosslinked with sodium tetraborate. The viscoelastic properties of the mucus simulants were determined by magnetic r...

journal_title：Biorheology

authors： King M

更新日期：1987-01-01 00:00:00

abstract：:The aggregation of red blood cells may be analyzed as an interaction of an adhesive surface energy and the elastic stored energy which results from deformation of the cell. The adhesive surface energy is the work required to separate a unit adhered area and is the resultant of adhesive forces due to the bridging molec...

journal_title：Biorheology

authors： Skalak R

更新日期：1984-01-01 00:00:00

abstract：:In this work, we studied the effects of tensile strain on limb bud mesenchymal cells (MSC) cultured on a collagen type I tubular scaffold. A novel bioreactor was designed to culture the cells while subjecting the tubular scaffold to tensile stress and strain. Control samples included unseeded and MSC-seeded tubes cult...

journal_title：Biorheology

authors： Amos JR,Li S,Yost M,Ploehn H,Potts JD

更新日期：2009-01-01 00:00:00

abstract：:It has long been recognized that understanding the rheological properties of blood is essential to a full understanding of the function of the circulatory system. Given the difficulty of obtaining carefully controlled measurements in vivo, most of our current concepts of the flow behavior of blood in vivo are based on...

journal_title：Biorheology

authors： Bishop JJ,Popel AS,Intaglietta M,Johnson PC

更新日期：2001-01-01 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：:The present study was designed to investigate the oxidant susceptibility of red blood cells (RBC) from four species (echidna, human, koala, Tasmanian devil) based on changes in cellular deformability. These species were specifically chosen based on differences in lifestyle and/or biology associated with varied levels ...

journal_title：Biorheology

authors： Simmonds MJ,Meiselman HJ,Marshall-Gradisnik SM,Pyne M,Kakanis M,Keane J,Brenu E,Christy R,Baskurt OK

更新日期：2011-01-01 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：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：: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：: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：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：:Frozen, stored mucus has been extensively used for transport studies but there is no clear evidence of the influence that the temperature and length of time of storage may have on the results. We stored frog mucus samples at -20 and -80 degrees C and analysed them on days zero, 2, 10, 30 and 90. At each temperature, a...

journal_title：Biorheology

authors： Gastaldi AC,Jardim JR,King M

更新日期：2000-01-01 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：:Mesenchymal stem cells (MSCs) have the potential to differentiate into distinct mesenchymal tissue cells. They are easy to expand while maintaining their undifferentiated state, which suggests that these cells could be an attractive cell source for tissue engineering of cartilage. In vitro high density micromass cultu...

journal_title：Biorheology

authors： Yang JW,de Isla N,Huselstein C,Sarda-Kolopp MN,Li N,Li YP,Jing-Ping OY,Stoltz JF,Eljaafari A

更新日期：2006-01-01 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：:The maintenance of articular cartilage integrity requires a balance between anabolic and catabolic processes which are under the control of chondrocytes. These cells are living in an anaerobic environment and normally do not divide. They are responsible for the continuous maintenance of the cartilage extracellular mat...

journal_title：Biorheology

authors： Pujol JP,Felisaz N,Boumediene K,Ghayor C,Herrouin JF,Bogdanowicz P,Galera P

更新日期：2000-01-01 00:00:00

abstract：:The separation process of blood and RBC suspensions in a hematocrit range between 0.3-0.7 was investigated with a centrifuge allowed to run at low accelerations (100 xg-1000 xg). The position of the interface between the supernatant of plasma and the RBC column was continuously recorded by a new optoelectronic measuri...

journal_title：Biorheology

authors： Lerche D,Bilsing R

更新日期：1988-01-01 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