摘要
目的 建立吗啡急性成瘾猫模型,研究吗啡急性成瘾猫神经电生理及脑组织病理学变化,探讨其发病机制,为临床合理治疗提供病理学及电生理学依据. 方法 将12只家猫按照随机数字表法分成对照组（3只）、吗啡成瘾组（9只）,用剂量递增法造模成功后,行大脑皮层及伏核、海马区域脑电图检测,并在光镜和电镜下观察各脑区皮质及垂体的形态学变化. 结果 吗啡急性成瘾猫模型成功建立,脑电图监测显示吗啡急性成瘾猫脑电图生理波减少,病理波频繁出现;病理学检查显示各脑区皮质的神经元变性、细胞器减少、线粒体肿胀、染色质边集、核固缩甚至坏死.结论长期使用吗啡可导致脑电图出现病理改变,脑功能损害,这种损害与脑内神经元超微结构改变有密切关系.
Objective To establish the cat models of acute morphine dependence, and explore the etiopathogenesis by investigating its electrophysiology and pathology changes of its brain tissue to provide pathological and electrophysiological evidences for clinical treatment. Methods Twelve cats were randomly divided into control group （n=3） and morphine dependent group （n=9）; cats in the morphine dependent group were induced by injection of morphine hydrochloride in a daily increased manner, and at the same time, cats in the control group were injected physiological saline. After the success of model making, EEG was performed on the cortex, hippocampus and nucleus accumbens in cats of the 2 groups; the changes of every encephalic region and pituitary gland were observed under light microscope and electron microscope. Results Morphine dependent cat models were successfully established. EEG indicated that physiological waves decreased and pathological waves appeared frequently in cats of the morphine dependent group as compared with those in the normal ones.Physiological examinations showed that the neuronal degeneration, organelle reduction, mitochondria swelling, chromatin margination and karyopycnosis or even nuclear necrosis occurred in the cortex of every encephalic region. Conclusion Pathological changes and brain damages will appear under EEG after long-term use of morphine, which is intimately related to neuron ultramicrostructure changes.
出处
《中华神经医学杂志》
CAS
CSCD
北大核心
2011年第2期137-141,共5页
Chinese Journal of Neuromedicine
关键词
吗啡依赖
脑电图
病理改变
Morphine dependence
EEG
Pathological change
