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Rho激酶在阻断休克肠淋巴液回流、提高大鼠血管钙敏感性中的作用
  • ISSN号:1000-4718
  • 期刊名称:中国病理生理杂志
  • 时间:0
  • 页码:11-15
  • 分类:R-332[医药卫生]
  • 作者机构:[1]河北北方学院微循环研究所,河北张家口075000
  • 相关基金:国家自然科学基金项目(No:30370561、No:30971203);河北省科技支撑计划(No:11276103D-84);张家口市科技攻关计划(No:0911021D-1、No:0911021D-2)
  • 相关项目:休克淋巴液降低血管反应性的分子机制
中文摘要:

目的观察休克肠淋巴液引流对失血性休克大鼠红细胞三磷酸腺苷(ATP)、乳酸(LA)、2,3-二磷酸甘油酸(2,3-DPG)以及红细胞内外离子浓度的影响,揭示肠淋巴途径在休克发病学中的意义。方法 Wistar雄性大鼠均分为假休克组、休克组(复制失血性休克模型)、引流组(复制失血性休克模型,自低血压1 h引流休克肠淋巴液)。在低血压3 h或相应时间,经腹主动脉取血,制备红细胞悬液检测红细胞ATP、LA水平;制备红细胞内液检测2,3-DPG、Na^+、K^+浓度;制备血浆,检测Na^+、K^+、Cl^-、Ca浓度。结果休克组、引流组大鼠红细胞2,3-DPG、LA含量显著高于、ATP含量显著低于假休克组,且引流组2,3-DPG、ATP含量高于休克组;休克组血浆仅K+浓度高于假休克组、引流组红细胞内液Na^+浓度显著低于休克组。结论失血性休克大鼠红细胞能量代谢障碍的表现为2,3-DPG代偿性增加、ATP减少、LA堆积,并引起血钾升高;休克肠淋巴液引流增强了2,3-DPG的代偿、提高了ATP生成、减少LA堆积。肠淋巴液在休克红细胞能量代谢障碍的发病学中发挥重要作用。

英文摘要:

[ Objective ] To observe the effects of mesenteric lymph drainage on adenosine triphosphate (ATP), lactic acid (LA), 2, 3-diphosphoglycerate (2, 3-DPG) of RB'C as well as ion concentration intraand extracellolar fluid of RBC in rats subjected to hemorrhagic shock and resuscitation, and explore the significance of mesenteric lymph pathway playing in the pathogenesis of shock process. [ Methods ] Wistar rats were randomly divided into sham-shock group, shock group (duplicating hemorrhagic shock model), drainage group (duplicating hemorrhagic shock model plus drainaging shock mesenteric lymph from hypotension 1 h). At 3 h of hypotension or corresponding time, blood samples were harvested from the abdominal aorta. Membrane suspension of RBC prepared from part of whole blood samples was used to measure the contents of ATP and LA, the intracellular fluid of RBC prepared from part of whole blood samples was used to determine the ion concentration of Na^+, K^+ and 2, 3-DPG, plasma samples isolated from blood by centrifugation were used to determine the concentration of Na^+, K^+, Cl^- and Ca. [ Results] In shock and drainage groups, the contents of 2, 3-DPG and LA were increased and the contents of ATP were decreased significantly when compared with those of sham group. Furthermore, the contents of 2, 3-DPG and ATP in drainage group were increased significantly compared with those of shock group. The concentration of K~ in plasma in shock group was significantly increased compared with that in sham group. The concentration of Na^+ in intracellular fluid of RBC in drainage group was significantly decreased when compared with that of shock group. [ Conclusion] The results indicate that erythrocyte energy metabolic dysfunction of hemorrhagic shock rats is charactered by 2, 3-DPG enhancement, ATP depletion, LA accumulation and hyperkalemia, the drainage of shock mesenteric lymph increases the compensation of 2, 3-DPG, elevates the contents of ATP, blunters the accumulation of LA. In this viewp

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期刊信息
  • 《中国病理生理杂志》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国病理生理学会
  • 主编:陆大祥
  • 地址:广东省广州市黄埔大道西601号
  • 邮编:510632
  • 邮箱:obsbjbb@jnu.edu.cn
  • 电话:020-85220269
  • 国际标准刊号:ISSN:1000-4718
  • 国内统一刊号:ISSN:44-1187/R
  • 邮发代号:46-98
  • 获奖情况:
  • 1997-2000年连续获得中国科协优秀基础性和高科技...,1992、1996、2000、2004、2008年,连续五次入选中...,2008-2010年,连续三年荣获“百种中国杰出学术期...,2010年获广东省期刊最高奖——品牌期刊奖
  • 国内外数据库收录:
  • 美国化学文摘(网络版),日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:37010