Results 171 to 180 of about 827,548 (247)

Methodological Aspects of Erythrocyte Aggregation

Recent Patents on Anti-Cancer Drug Discovery, 2007
The aim of this paper is to analyze merits and demerits of methodological approaches designed for investigations of erythrocyte aggregation--a process, which plays a crucial role in rheological and transport properties of blood. Ideally, erythrocyte aggregation should be characterized in terms of the time-dependent gyration radius of the aggregates and
Alexander, Pribush, Naomi, Meyerstein
openaire   +2 more sources

Effect of desmopressin on erythrocyte aggregation

Bulletin of Experimental Biology and Medicine, 2008
Experiments on rats showed that desmopressin in doses recommended for single injections to humans increased erythrocyte aggregation. A close correlation between erythrocyte aggregation index and blood viscosity, on the one hand, and plasma content of acid glycosaminoglycans on the other was detected.
N P, Zdumaeva, V N, Levin
openaire   +2 more sources

Erythrocyte aggregability and AB0 blood groups

Clinical Hemorheology and Microcirculation, 2009
It is not established whether there is an association between erythrocyte aggregation and AB0 blood type, as glycophorins carry sialic acid which is responsible for the negative erythrocyte surface charge and the antigenicity for AB0 blood groups. We have determined erythrocyte aggregation by means of the Myrenne aggregometer in 114 healthy volunteers,
Amparo, Vayá, Marisa, Martínez Triguero, Alicia, Ricart, Gema, Plumé, Pilar, Solves, Dolores, Corella, Marco, Romagnoli   +6 more
openaire   +2 more sources

Albumin affects erythrocyte aggregation and sedimentation

European Journal of Clinical Investigation, 1995
Abstract. Erythrocyte aggregation and sedimentation is determined by the concentration of high molecular plasma proteins such as fibrinogen and immuno‐globulins. The role of albumin, the most abundant plasma protein, is controversial. We analysed the influence of human albumin (0–80 gL‐1) on sedimentation behaviour of erythrocytes suspended ...
W H, Reinhart, C, Nagy
openaire   +2 more sources

Blood Viscosity: Influence of Erythrocyte Aggregation

Science, 1967
The addition of purified canine or bovine fibrinogen to suspensions of canine erythocytes in Ringer solution caused an increase in viscosity and the formation of aggregates of erythocytes. Both of these effects became increasingly pronounced as the fibrinogen concentration was raised, and they approached plateaus with 1 gram of fibrinogen ...
S, Chien, S, Usami, R J, Dellenback, M I, Gregersen, L B, Nanninga, M M, Guest   +5 more
openaire   +2 more sources

Animal species differences in erythrocyte aggregability

American Journal of Physiology-Heart and Circulatory Physiology, 1992
Species differences in erythrocyte aggregability were investigated employing our whole blood erythrocyte aggregometer. Blood was sampled from seven species, including humans and anesthetized (30 mg/kg pentobarbital) animals. The erythrocyte aggregation rates were the following (in s-1): cats, 0.213 +/- 0.027 (means +/- SD); dogs, 0.164 +/- 0.027; men,
K, Ohta, F, Gotoh, M, Tomita, N, Tanahashi, M, Kobari, T, Shinohara, Y, Terayama, B, Mihara, H, Takeda   +8 more
openaire   +2 more sources

Ultrasonic evaluation of erythrocyte aggregation dynamics

Biorheology, 1989
The dynamics of aggregation and disaggregation of blood of varying hematocrit in oscillatory flow in a distensible horizontal tube was determined by measuring the developing echo intensity of the blood samples with a 10 MHz B-mode ultrasonic scanner. Early aggregation could be detected within 10 sec. of stoppage of flow.
S Y, Kim, I F, Miller, B, Sigel, P M, Consigny, J, Justin   +4 more
openaire   +2 more sources

Erythrocyte deformability and erythrocyte aggregation in preeclampsia.

Clinical hemorheology and microcirculation, 2001
One of the features of preeclampsia is impaired blood rheology due to altered erythrocyte aggregation and erythrocyte deformability. We investigated these two parameters which affect the viscosity of blood, along with serum and intraerythrocytic magnesium concentrations, immunoglobulin titres and fibrinogen concentration in 12 preeclamptic women ...
Pepple, D. J., Hardeman, M. R., Mullings, A. M., Reid, H. L.   +3 more
openaire   +2 more sources

The influence of erythrocyte aggregation on induced platelet aggregation

Clinical Hemorheology and Microcirculation, 2010
Red blood cells (RBCs) affect platelet aggregation in flowing blood (primary hemostasis). We tested the hypothesis that RBC aggregation could influence platelet aggregation. RBC aggregation was altered in vitro by: (i) changing plasma aggregatory properties with 3.7 g% dextran 40 (D40), 3.0 g% dextran 70 (D70) or 1.55 g% dextran 500 (D500);
C, Ott, E, Lardi, T, Schulzki, W H, Reinhart   +3 more
openaire   +2 more sources

Ultrasound Backscattering from Non-Aggregating and Aggregating Erythrocytes-A Review

Biorheology, 1997
The objective of the present paper is to provide a detailed review of theoretical, experimental and clinical works aimed at understanding the scattering of ultrasound by red blood cells (RBC). The paper focuses on the role of biofluid mechanics and blood biorheology on the scattering mechanisms.
G, Cloutier, Z, Qin
openaire   +2 more sources