Evaluation of a New Approach of the Diagnosis of Constitutional Functional Disorders of Platelets

"T1 and T2: one blood punction with signalisation test (T1 for each arm, T2 at +6 months only if an anomaly at signalisation test is detected)~signalisation test is made by flow cytometry~Stage 1: for arm bleeding disorder : flow cytometry analysis to establish reference values observed in subjects without thrombopathy for each marker after agonist stimulation and corresponding search of an effect if a center-center effect is observed on the reference values its origin will be sought and corrected.~Stage 2: for the two others arms: Several markers will be analyzed, corresponding to routes or levels of different signaling. For each of these markers, the test will evaluate quantitatively the phosphorylation activity of the protein tested."