Inhibiting effect of desalted extract from Galega officinalis L. on platelet aggregation

The inhibiting and disaggregating effect of desalted and fractionated herbal extract of Galega officinalis L. on platelet aggregation in vitro is studied. At a concentration of 35 micrograms/ml in a platelet-rich plasma (PRP) the fraction inhibits 50% of aggregation by ADP and at 125 micrograms/ml PRP it inhibits fully the aggregation of PRP by ADP. At a concentration of 40 micrograms/ml PRP the fraction inhibits the initiation of platelet aggregation by collagen and at 50 micrograms/ml PRP inhibits the initiation of aggregation by thrombin. At a concentration of 65 micrograms/ml PRP the fraction can disaggregate 50% of the aggregated platelet-rich plasma by ADP and 25% of aggregated PRP by collagen.