白芷香豆素对炎性疼痛小鼠脑组织中5-羟色胺及5-吲哚乙酸和多巴胺含量的影响

目的观察白芷香豆素(CAD)对炎性疼痛小鼠脑组织中5-羟色胺(5-HT)、5-吲哚乙酸(5-HIAA)及多巴胺(DA)含量的影响。方法昆明小鼠50只分为对照组、模型组及CAD高、中、低剂量组,每组10只。除对照组外,其余各组小鼠右足底部注射完全福氏佐剂(FCA)复制炎性疼痛模型,造模后对照组及模型组灌服生理盐水,CAD高、中、低剂量组分别灌服5、10、15 g·L~(-1)CAD提取液,连续灌胃给药3 d,末次给药后1 h,高效液相色谱法测定脑组织中5-HT、5-HIAA和DA含量。结果模型组小鼠脑组织中5-HT、5-HIAA及DA的含量与对照组比较差别无统计学意义(P>0.05)。CAD高、中及低剂量组小鼠脑组织中5-HT及5-HIAA的含量与对照组和模型组相比均显著升高(P<0.05,P<0.01)。随着CAD剂量的增加,小鼠脑组织中5-HT和5-HIAA含量也逐渐升高,其中CAD高剂量组5-HT和5-HIAA含量明显高于CAD低剂量组(P<0.05);CAD高剂量组5-HT含量高于CAD中剂量组,差别有统计学意义(P<0.05),5-HIAA含量增加不明显(P>0.05);CAD中剂量组与CAD低剂量组相比,5-HT和5-HIAA含量稍增高但无统计学意义(P>0.05);DA含量CAD高、中及低剂量组比较差别无统计学意义(P>0.05)。结论CAD的镇痛作用机制可能与神经递质5-HT和5-HIAA的含量有关。

Effects of coumarins from Radix Angelicae Dahurica on 5-hydroxytryptamine, 5-OH-indoleacetic acid and dopamine contents in brain tissue of mice with inflammatory pain

Objective To observe the effects of coumarins from Radix Angelicas Dahurica(CAD) on 5-hydroxytryptamine (5-HT),5-OH-indoleacetic acid(5-HIAA) and dopamine(DA) contents in the brain tissues of mice with inflammatory pain. Methods Mice were divided randomly into the normal group(n = 10),the model group(n = 10) and the high CAD group(n = 10),the medium CAD group(n = 10) and the low CAD group(n = 10).Except in the normal group,all the mice in the other groups were injected with FCA in the right foot pads to dup...