目的：观察海洛因海绵状白质脑病患者的1H-MRS表现，分析其脑内N-乙酰天门冬氨酸、肌酸和胆碱的代谢规律。
OBJECTIVE: To observe the 1H-MRS manifestations of patients with heroin spongiform leucoencephalopathy so as to analyze metabolic regularities of N-acetyl aspartate, creatine and bilineurine in brain.
天冬酰胺是一种非必需的中性晶体氨基酸，许多植物里都有，易于水解为天门冬氨酸。
L - asparagine is a non - essential , neutrall , genetically coded amino acid . it is a crystalline amino acid , found in many plants , that is easily hydrolyzed to aspartic acid.
以L-天门冬氨基酸和硝酸锌为原料合成L-天门冬氨基酸锌螯合物。
The thesis introduced the procedure of synthesizing L-aspartic acid zinc complex with the raw material of L-aspartic acid and Zinc nitrate.
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