检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:蒋玉凤[1] 刘智勤[2] 张颖[1] 张宇忠[1] 王谦[1] 刘世静[1] 白丽敏[1] 黄启福[1]
机构地区:[1]北京中医药大学,北京100029 [2]河北大学
出 处:《北京中医药大学学报》2007年第8期522-524,共3页Journal of Beijing University of Traditional Chinese Medicine
基 金:国家自然科学基金资助项目(No.30472281)
摘 要:目的 探讨丹酚酸B(SalB)对脑缺血高能磷酸化合物和乳酸含量的影响.方法 复制急性脑缺血模型,测定缺血30 min脑组织高能磷酸化合物和乳酸的含量以及脑组织的含水量.结果 缺血组脑组织ATP[(12.12±3.71) μmol/g]和磷酸肌酸[(65.24±8.84) μmol/g]含量及Na+-K+-ATPase活性[(1.321±0.373)U/mg]显著降低(P<0.01),而乳酸[(3.58±0.81) mmol/g]含量显著升高(P<0.01)、脑指数[(1.508±0.002)%]和脑含水量[(78.75±0.47)%]明显增多(P<0.05~0.01).用丹酚酸B治疗,脑组织ATP[(18.16±3.38) μmol/g]和磷酸肌酸[(74.46±6.58) μmol/g]含量显著升高(P<0.01),Na+-K+-ATPase[(1.902±0.491) U/mg]活性增强(P<0.05),而乳酸[(2.59±0.41) mmol/g]含量明显减少(P<0.01)、脑指数[(1.505±0.002) %]和脑含水量[(78.10±0.44) %]则降低(P<0.05).结论 增加高能磷酸化合物以及降低乳酸的含量,可能是丹酚酸B减轻急性脑缺血早期脑水肿的作用机制.Objective To investigate the effects of salvianolic acid B (SalB) on the contents of energy rich phosphate and lactic, acid in mice with cerebral ischemia. Methods The model of acute cerebral ischemia was established and the contents of energy rich phosphate and lactic acid, and brain water content were detected 30 minutes after brain ischemic. Results In the ischemic group the cerebral contents of ATP [ ( 12.12 ± 3.71 ) μmol/g ] and creatine phosphate [ (65.24 ±8.84 ) μmol/g ], the activity of Na + - K + - ATPase [ (1. 321 ±0. 373) U/mg] were obviously decreased (P 〈0.01 ), while the content of lactic acid [ (3.58 ± 0.81 ) mmol/g] (P 〈 0.01 ), cerebral index [ ( 1.5(18 ± 0. 002) % ] and brain water content [ ( 78.75 ±0. 47 ) % ] were increased obviously ( P 〈 0.05 0. 01 ). In the SalB treated group the cerebral contents of ATP [ ( 18.16 ±3.38) μmol/g] and creatine phosphate [ (74.46±6.58) μmol/g] were obviously increased (P 〈0.01 ), the activity of Na + -K + - ATPase [ ( 1. 902 ± 0. 491 ) U/mg ] was improved ( P 〈 0.05 ), while the content of lactic acid [ (2. 59 ±0.41 ) mmol/g] (P 〈0. 01 ), cerebral index [ ( 1. 505 s0.002) % ] and brain water content [ (78.10 ±0.44) % ] were decreased (P 〈 0.05 ). Conclusion The mechanism of SalB for relieving early cerebral edema after acute cerebral ischemia may be related to that SalB can increase the content of energy rich phosphate and decrease the content of lactic acid.
关 键 词:丹酚酸B 急性脑缺血 高能磷酸化合物 乳酸 小鼠
分 类 号:R743.31[医药卫生—神经病学与精神病学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.144.229.52