(A/B) 8H7-mAb treated mice did not exhibita prolonged tail bleeding time (A). After tail bleeding time the blood was collected and the number of platelets (B) and leukocytes (C) were estimated for both groups. (D) An in vivo treatment with 8H7-mAb did not change the surface expression of CD42b, CD29, CD41, CD49b, GPVI or the active form of αIIbβ3 on platelets compared to IgG control treated mice. (F/G) Every dot shows the response of one donor for the prothrombin time (E) and the activated partial thromboplastin time (F) (n=8). (G) PFA-100 measurement was performed with human blood. With the cartilages P2Y, Collagen/Epinephrine and Collage/ADP no difference could be detected.