波谱学杂志

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美兰光化学法对红细胞损伤的NMR研究

吴昌琳1, 兰蓉2, 陆萍3, 黄永仁1   

  1. 1.华东师范大学分析测试中心,国家教委光谱学与波谱学重点实验室,上海 200062; 2.华东师范大学生物系,上海 200062;3.上海市血液中心,上海 200051
  • 收稿日期:2002-04-01 修回日期:2002-05-14 出版日期:2002-12-05 发布日期:2002-12-05
  • 作者简介:吴昌琳(1965-),女,江西赣州人,博士研究生,讲师,核磁共振波谱专业.
  • 基金资助:

    国家自然科学基金资助项目(19875017),上海市科委安全输血医学重点资助课题.

31P NMR STUDIES OF INJURIES IN ERYTHROCYTES TREATED WITH METHYLENE BLUE PHOTOCHEMICAL METHOD

WU Chang-lin1,  LAN Rong2, LU Ping3, HUANG Yong-ren1   

  1. 1.Key Laboratory of Optical and Magnetic Resonance Spectroscopy for Education  Ministry, Physics Department of East China Normal University, Shanghai 200062, China; 2.Biology Department of East China Normal University,Shanghai 200062, China; 3.Shanghai Blood Center,  Shanghai 200051, China
  • Received:2002-04-01 Revised:2002-05-14 Online:2002-12-05 Published:2002-12-05
  • Supported by:

    国家自然科学基金资助项目(19875017),上海市科委安全输血医学重点资助课题.

摘要:

运用31P NMR研究红细胞中高能磷酸化合物的代谢变化,探讨美兰光化学法对红细胞的损伤. 采用MSL-300 MHz型超导核磁共振仪分别测量健康成人红细胞对照组、经美兰(亚甲基蓝)光化学处理组及预先加入L-组氨酸组的高能磷酸化合物,通过分析比较红细胞中2,3-二磷酸甘油酸(2,3-DPG)、三磷酸腺苷(ATP)及磷酸化糖(SP)相对含量,了解美兰光化学法对红细胞代谢的影响. 经亚美兰光化学法处理的红细胞,葡萄糖进入戊糖磷酸途径的分量增加,使红细胞中2,3-DPG和ATP含量显著减少,而SP含量大幅上升,在某种程度上影响红细胞的理化性质和功能指标;L-组氨酸对此有一定的保护作用.

关键词: 31P NMR, 红细胞, 美兰光化学法, L-组氨酸

Abstract:

In order to understand injuries occurred in erythrocytes treated with  the methylene blue (MB) photochemical method, the changes of high-energy phosph a temetabolites in the treated erythrocytes were studied by 31P NMR. T he control and treated erythrocyte samples, which originally allcame from stored blood of  healthy adults, were measured by 31P NMR with an MSL-300 MHz spectr ometer. L-hist idine was added to half of the treated samples before the treatment. The effects  of the MB photochemical method on the erythrocytes were studied by measuring the relative changes of 2,3-DPG, ATP and (PME+SP) contents. In erythrocytes treat e d with MB photochemistry, the contents of (PME+SP) increased significantly, and  the contents of 2,3-DPG and ATP decreased significantly. Our data suggest that, in the MB treated erythrocytes, glucose metabolism through the pentose phosphate pathway increases significantly. It is concluded that MB treatment may affect physical, chemical and functional properties of erythrocytes to some degree, and such effects can be ameliorated by L-histidine.

Key words: 31P NMR, erythrocytes, methylene blue photochemical method, L-hist idine

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