摘要
目的：探讨慢性氟中毒对神经元某些酶类的影响，为氟中毒脊髓病临床症状产生的机理提供形态学依据。方法：采用生后４０日龄Ｗｉｓｔａｒ系雄性大鼠，以喂饲高氟１００ｐｐｍ／Ｌ水的方法制造慢性氟中毒模型。对其脊髓前角运动神经元的镁激活腺苷三磷酸酶（Ａｄｅｎｏｓｉｎｅｔｒｉｐｈｏｓｐｈａｔａｓｅ，ＡＴＰａｓｅ），硫胺素焦磷酸酶（Ｔｈｉａｍｉｎｅｐｙ－ｒｏｐｈｏｓｐｈａｔａｓｅ，ＴＰＰａｓｅ），乙酰胆碱酯酶（Ａｃｅｔｙｌｃｈｏｌｉｎｅｓｔｅｒａｓｅ，ＡＣｈＥ）及胆碱乙酰化酶（Ｃｈｏｌｉｎｅａｃｅｔｙｌｔｒａｎｓｆｅｒａｓｅ，ＣｈＡｃ）进行定性定量研究。结果：氟中毒组脊髓前角神经元的ＡＴＰａｓｅ，ＴＰＰａｓｅ及ＡＣｈＥ的活性明显降低，而ＣｈＡｃ的变化不明显。结论：慢性氟中毒对脊髓前角运动神经元的ＡＴＰａｓｅ，ＴＰＰａｓｅ及ＡＣｈＥ的活性有明显的影响，而对ＣｈＡｃ的影响不明显。
Objective: This study was to explore the effect of chronic fluorosis on fluorosis neuron enzymes and to provide some morphological evidence for the mechanism of the clinical manifestations in fluorosis myelopathy. Methods: Male wistars rats 40 days after birth were fed with high concentration fluorine water (100 ppm/L) for inducing fluorosis. We analysed the Mg 2+ ATPase, TPPase, AChE, and ChAc quanlitatively and quantitatively in the motor neurons at anterior horn of spinal cord. Results: The activities of Mg 2+ ATPase, TPPase, and AChE of the neurons were obviously decreased. No apparent alteration occurred in ChAc activity. Conclusion: Changes in these enzymes might be of diagnostic value for fluorosis myelopathy.
出处
《中国医科大学学报》
CAS
CSCD
北大核心
1999年第2期81-82,共2页
Journal of China Medical University
基金
国家自然科学基金
