Indicators of erythrocyte damage after microwave warming of packed red blood cells.
Indicators of erythrocyte damage after microwave warming of packed red blood cells.
复制标题
微波加热浓缩红细胞后红细胞损伤的指标。
作者：
J. Hirsch;A. Menzebach;I. Welters;G. Dietrich;N. Katz;G. Hempelmann
背景
BACKGROUND
Localized overheating of packed red blood cells (PRBCs) after microwave warming with consequent damage to erythrocytes has been reported. We therefore compared possible cellular markers of erythrocyte damage, as measured by flow cytometry, with laboratory indicators of hemolysis to evaluate the effects of microwave warming on PRBCs.
METHODS
PRBC samples were warmed to room temperature or to 37, 42, 47, 52, or 57 degrees C in a water bath. Flow cytometry was performed after fluorescein labeling using antibodies to spectrin, Ca(2+)-ATPase, and Na(+)-K(+)-ATPase. The forward-to-sideward scatter (FSC/SSC) ratio and antibody binding were evaluated. Plasma free hemoglobin (FHb) and alpha-hydroxybutyrate dehydrogenase (HBDH) were measured immediately after heating and after 48 h. In addition, all measurements were made before and after the heating of PRBCs to 35 degrees C by a microwave blood warmer.
RESULTS
Analysis of 15000 erythrocytes showed a decrease in the FSC/SSC ratio and antibody binding above 47 degrees C [at 37 degrees C, median (SD) of 94.2 (7.4) with 0.07 (0.05)% fluorescein-positive; at 52 degrees C, median (SD) of 177.0 (19.0) with 18.5 (6.4)% positively gated; P <0.001]. FHb [room temperature, 0.3 (0.2) g/L] was increased 2-fold at 37 and 42 degrees C, 4-fold at 47 degrees C, and 25-fold at 52 degrees C. HBDH increased in parallel. Hemolysis markers showed an additional twofold increase 48 h after heating to 42 and 47 degrees C. Microwave heating to 35 degrees C did not produce significant changes of any marker.
CONCLUSIONS
All markers of cellular damage were altered after heating to >47 degrees C, and a substantial part of hemolysis was delayed. The methodology can be used for future testing of other blood warming devices.
登录
查看更多内容
对最新的人体包装红细胞进行在线微波血液加温。
影响因子：
8.8
作者：
Pappas,CG;Paddock,H;Goyette,P;Grabowy,R;Connolly,RJ;Schwaitzberg,SD
通讯作者：
Schwaitzberg,SD
(Na K )-ATPase 单克隆抗体的分离和表征。
DOI：
10.1016/0304-4165(82)90228-8
发表时间：
1982
期刊：
Biochimica et biophysica acta
影响因子：
--
作者：
Ball,WJ;Schwartz,A;Lessard,JL
通讯作者：
Lessard,JL
DOI：
10.1016/0005-2736(89)90399-4
发表时间：
1989-04-14
期刊：
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子：
--
作者：
LEPOCK, JR;FREY, HE;MARKUS, J
通讯作者：
MARKUS, J
高温对禽类红细胞的影响。
DOI：
10.3109/02656739309032058
发表时间：
1993
期刊：
International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group
影响因子：
--
作者：
Lee,SW;Ducoff,HS
通讯作者：
Ducoff,HS