不同渗透压对红细胞体积和溶血影响研究  被引量:1

Changes in erythrocyte volume and hemolysis under different osmotic

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作  者:张莹[1] 张嵘[1] 洪树青[1] 王珏[1] 宋宁[1] 田力[1] 陈强[1] 高华方 刘忠[1] 

机构地区:[1]北京协和医学院中国医学科学院输血研究所,四川成都610052 [2]国家卫生和计划生育委员会科学技术研究所

出  处:《中国输血杂志》2015年第12期1458-1462,共5页Chinese Journal of Blood Transfusion

基  金:国家自然科学基金(81370669)

摘  要:目的探讨不同渗透压下红细胞体积和溶血情况的变化,为优化人红细胞保护剂的添加和洗涤方案、冷冻干燥程序设定等方面提供参考依据。方法以梯度浓度的氯化钠溶液提供不同的渗透压环境,加入储存4周的全血,离心法测红细胞压积(Hct)、显微镜下记录红细胞形态和直径、用冰点渗透压仪测定上清的渗透压、测定上清血红蛋白(Hb)含量,经计算得到不同渗透压下的红细胞体积及溶血率差异。结果在低渗环境下,当渗透压(m Osm/kg)为148、154、158、171、191和236时,溶血率(%)分别为87.3±4.3、79.4±6.7、68.5±6.6、30.2±2.8、6.6±1.0和2.5±0.8,红细胞平均体积(MCV)(f L)分别为184.1±32.7、216.4±62.9、185.2±27.3、151.8±6.8、122.4±3.7和109.3±2.4;在高渗环境下,当渗透压(m Osm/kg)为810、1 073、2 460和3 033时,溶血率(%)分别为2.1±0.7、2.5±0.6、25.2±8.7和55.8±13.8,MCV(f L)分别为58.1±1.9、60.6±2.8、74.5±4.8和80.1±13.9;在等渗环境,溶血率为(1.9±0.8)%、MCV为(94.9±1.08)f L。结论渗透压从低渗到高渗变化过程中,红细胞的体积逐渐减小,溶血率先降低后升高,当渗透压为160 m Osm/kg时,红细胞体积达到上限160 f L,溶血率增加至68%;当渗透压为800 m Osm/kg时,红细胞体积达到下限为60 f L,溶血率为2%。为了降低细胞溶血率,红细胞体积变化宜<1.68倍、>0.68倍原体积。Objective To investigate the changes in erythrocyte volume and hemolytic under different osmotic conditions,in order to provide a theoretical basis for cryoprotectants additions and removal,lyophilization and thawing of the red blood cell. Methods Different gradient of sodium chloride was added to provide various osmotic conditions. Whole blood that was stored for four weeks were added to the solutions. Hematocrit was measured by centrifugation. Cell morphology and diameter were recorded under the microscope. Freezing point osmotic pressure gauge was used to measure the osmotic pressure of supernatant. Cell volume were calculated on the basis of the data above. Results In a hypotonic environment,when the osmotic pressures were 148 m Osm / kg,154 m Osm / kg,158 m Osm / kg,171 m Osm / kg,191 m Osm / kg,236 m Osm / kg,the hemolysis rates were( 87. 3 ± 4. 3) %,( 79. 4 ± 6. 7) %,( 68. 5 ± 6. 6) %,( 30. 2 ± 2. 8) %,( 6. 6 ± 1. 0) %,and( 2. 5 ±0. 8) %,respectively. The mean corpuscular volumes( MCV) were( 184. 1 ± 32. 7) f L,( 216. 4 ± 62. 9) f L,( 185. 2 ±27. 3) f L,( 151. 8 ± 6. 8) f L,( 122. 4 ± 3. 7) f L,and( 109. 3 ± 2. 4) f L,respectively. Under hypertonic conditions,when the osmotic pressures were 810 m Osm / kg,1 073 m Osm / kg,2 460 m Osm / kg,3 033 m Osm / kg,the hemolysis rates were( 2. 1 ± 0. 7) %,( 2. 5 ± 0. 6) %,( 25. 2 ± 8. 7) %,and( 55. 8 ± 13. 8) %,respectively,the MCVs were( 58. 1 ± 1. 9) f L,( 60. 6 ± 2. 8) f L,( 74. 5 ± 4. 8) f L,( 80. 1 ± 13. 9) f L,respectively. In isotonic environment,the hemolysis rate was( 1. 9± 0. 8) %,and MCV was( 94. 9 ± 1. 08) f L. Conclusion The cell volume gradually reduces with increasing osmolarity,when osmotic pressure is 160 m Osm / kg,the red blood cell volume reaches to160 f L,the hemolysis rate increases to 68%;when osmotic pressure is 800 m Osm / kg,the red blood cell volume is 60 f L,and the hemolysis rate is 2%. In order to reduce the rate of cell hem

关 键 词:渗透压 红细胞体积 溶血 红细胞压积 裂红细胞 

分 类 号:R331.141[医药卫生—人体生理学] R446.113[医药卫生—基础医学]

 

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