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.

• 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。