A platelet counting technique to study platelet aggregation in whole blood: application to pathologically low platelet counts

TY - JOUR

T1 - A platelet counting technique to study platelet aggregation in whole blood

T2 - application to pathologically low platelet counts

AU - Saniabadi, A. R.

AU - Lowe, G.

AU - Belch, J.

AU - Barbenel, J. C.

AU - Forbes, C. D.

PY - 1990

Y1 - 1990

N2 - In this study, we have used a platelet counting technique to measure platelet aggregation in whole blood from thrombocytopaenic patients who had platelet counts in the range 18 × 109/I-85 × 109/1. Aliquots of blood were incubated with platelet agonists in a shaking water bath at 37°C. Platelet aggregation was quantified by measuring the fall in single platelets counted in an Ultra-Flo 100 Whole Blood Platelet Counter. ADP (2 M), collagen (1 g/ml) and ristocetin (0.5-2 mg/ml) induced a fall in platelet count of 50%, 60% and 80% respectively. It is concluded that the present method can be used as part of the screening procedure to determine platelet function disorders when platelet counts are too low for aggregation studies with the more widely used photometric technique. A. R. Saniabadi, C. D. Forbes, J. Belch, Department of Medicine, Ninewells Hospital, Dundee, G. Lowe, Department of Medicine, Royal Infirmary, Glasgow, J. C. Barbenel, Bioengineering Unit, University of Strathclyde, Glasgow, UK.

AB - In this study, we have used a platelet counting technique to measure platelet aggregation in whole blood from thrombocytopaenic patients who had platelet counts in the range 18 × 109/I-85 × 109/1. Aliquots of blood were incubated with platelet agonists in a shaking water bath at 37°C. Platelet aggregation was quantified by measuring the fall in single platelets counted in an Ultra-Flo 100 Whole Blood Platelet Counter. ADP (2 M), collagen (1 g/ml) and ristocetin (0.5-2 mg/ml) induced a fall in platelet count of 50%, 60% and 80% respectively. It is concluded that the present method can be used as part of the screening procedure to determine platelet function disorders when platelet counts are too low for aggregation studies with the more widely used photometric technique. A. R. Saniabadi, C. D. Forbes, J. Belch, Department of Medicine, Ninewells Hospital, Dundee, G. Lowe, Department of Medicine, Royal Infirmary, Glasgow, J. C. Barbenel, Bioengineering Unit, University of Strathclyde, Glasgow, UK.

U2 - 10.3109/09537109009005480

DO - 10.3109/09537109009005480

M3 - Article

C2 - 21043972

SN - 0953-7104

VL - 1

SP - 151

EP - 153

JO - Platelets

JF - Platelets

IS - 3

ER -