Changes of adhesion,aggregation and factor Ⅲ activity of platelet apheresis concentrates in vitro after long-term cryo-preservation at-80 ℃ / 第三军医大学学报

0.05).However,during the thawing process of the APCs,four out of ten and three out of eleven APCs samples appeared aggregative reaction after cryo-preservance for 4 and 5 years,respectively.The majority of the samples extensively lost their factor Ⅲ activities in the fifth year storage.When fresh,liquid platelets were stored at room temperature(22 ℃),the in vitro adhesion and agglutination gradually decreased and statistic differences were observed in 72 h(P