We studied platelet adhesion to fibrinogen-coated surface in whole blood samples under conditions of high flow rates. The degree of platelet adhesion was evaluated by the intensity of laser light scattered from protein-coated optical surface with adhered platelets. The intensity of adhesion in whole blood samples at high flow rates was by 2.7 (2.4; 4.1) times higher than in platelet-rich plasma samples. Among the factors intensifying platelet adhesion in the whole blood at high flow rates, von Willebrand factor is of utmost importance. At low flow rates, platelet adhesion almost totally depends on platelet—fibrinogen interaction. At high flow rates, the interactions of platelets with both fibrinogen and von Willebrand factor become equally important.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 169, No. 2, pp. 188-192, February, 2020
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Avtaeva, Y.N., Mel’nikov, I.S., Okhota, S.D. et al. Kinetics of Platelet Adhesion to Protein-Coated Surface in Whole Blood Samples at High Flow Rates. Bull Exp Biol Med 169, 229–232 (2020). https://doi.org/10.1007/s10517-020-04856-z
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DOI: https://doi.org/10.1007/s10517-020-04856-z