实验动物科学 ›› 2014, Vol. 31 ›› Issue (01): 31-33.

• 研究 论著 • 上一篇    下一篇

神经损伤大鼠全血与海马AChE 活性变化相关性分析

  

  1. (1. 广东医学院实验动物中心,湛江524023) (2. 海南医学院海南省药物安全性评价研究中心,海口571101)
  • 出版日期:2014-02-28 发布日期:2014-05-14
  • 基金资助:

    广东省科技计划项目(No. 2012B060300002)

Correlation Analysis between AChE Activity Variation of Whole Blood and That of Brain Hippocampus in Nerve Damage Rats

  • Online:2014-02-28 Published:2014-05-14

摘要: 摘要:目的探讨神经损伤大鼠全血乙酰胆碱酯酶( acetylcholinesterase,AChE)活性与脑海马AChE 活性变化的相 关性。方法将120 只80—100 g 雄性SD 大鼠随机分为4 组,阴性对照组(花生油)、低剂量组(40 mg / kg 氯氰菊酯 cypermethrin,CP)、中剂量组(80 mg / kg CP)和高剂量组(160 mg / kg CP),每组30 只。灌胃给药,每日1 次,共28 d, 每日观察动物反应症状。给药后14 d 和28 d 及给药结束后7 d 从各组分别选择10 只大鼠,断尾取血,测定全血 AChE 活性,处死大鼠分离脑海马用免疫组化法测定AChE 活性。结果CP 染毒后大鼠表现出神经受损症状,低、 中和高剂量组全血AChE 活性和海马AChE 活性均低于阴性对照组(P ﹤ 0. 05),中、高剂量组全血AChE 活性与海 马AChE 活性呈现正相关(P ﹤ 0. 01)。结论CP 慢性染毒后大鼠出现神经损伤症状,全血和脑海马AChE 活性均 降低,二者之间为正相关,表明全血AChE 活性具备成为神经损伤标志物的潜力。

关键词: 神经损伤, 大鼠, 乙酰胆碱酯酶(AChE)活性, 相关性

Abstract: Abstract:Objective To study the correlation between AChE activity of whole blood and that of brain hippocampus in nerve damage rats. Method 120 male SD rats ( 80 - 100 g) were equally divided into 4 groups,including control group ( peanut oil),low dosage group (40 mg CP / kg body),middle dosage group (80 mg CP / kg body) and high dosage group ( 160 mg CP / kg body ) . Intragastric administration at 1 time a day were planed,the treatment lasted 28 days. General symptoms of rat were observed everyday. 10 rats of each group were selected at 14,28 day after treatment and 7 days after last treatment,respectively. Then blood was collected by tail abscise, activity of whole blood AChE was measured. Brain hippocampus of selected rats were separated,then AChE activity were measured by immune-histochemistry. Result Rats showed symptoms of nerve damage,AChE activity of whole blood and brain hippocampus were all decreased considerably(P ﹤ 0. 05),AChE activity of middle and high groups between whole blood and hippocampus was positive correlation(P ﹤0. 01) . Conclusion Rats showed symptoms of nerve damage after chronic exposure to CP,AChE activity between blood and hippocampus was positive correlation. AChE activity of whole blood has potential of becoming marker of nerve damage.

Key words: nerve damage, rat, AChE activity, correlation

中图分类号: