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首页> 外文期刊>Upsala journal of medical sciences >Storage of Human Red Blood Cells and Platelets
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Storage of Human Red Blood Cells and Platelets

机译:人红细胞和血小板的储存

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Storage renders erythrocytes more responsive to thermally induced morphological changes, especially the shedding of microvesicles. 4–8 week old cells can be morphologically “rejuvenated” by heating. If pH increases during storage of platelets an extensive loss of small particles occurs. The platelet disintegration is associated with a loss in the metabolic activity, discharge of LDH, increased suseptibility to phospholipid hydrolysis by phospholipase C and is found to be initiated during the actual preparation of platelet concentrates. Activation of platelets during preparation can be decreased by shortening the first centrifugation time or by using adenine in the anticoagulant. A 4 hour prestorage of the whole blood unit prior to centrifugation strongly decreases the activation of platelets upon stimuli and results in platelet concentates much more stable to storage.
机译:储存使红细胞对热诱导的形态变化,特别是微囊泡脱落更敏感。可以通过加热使4-8周大的细胞在形态上“恢复活力”。如果在血小板储存过程中pH升高,则会大量损失小颗粒。血小板崩解与代谢活性的丧失,LDH的释放,对磷脂酶C对磷脂水解的敏感性增加有关,并且被发现是在血小板浓缩物的实际制备过程中引发的。通过缩短第一次离心时间或在抗凝剂中使用腺嘌呤,可以减少制备过程中血小板的活化。离心前对全血单位进行4小时的预存储会极大地降低刺激后血小板的激活,并导致血小板浓缩液对存储的稳定性更高。

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