Studies on the synthesis of schiff bases of l - dopa 左旋多巴胺希夫碱的合成研究
2.
Both in de novo patients and in patoents treated with - dopa , dhec shows slight side effects ) 服用左旋多巴及dhec治疗的病人仅有轻微的副作用(表3 )
3.
Methods : in the dopa liquid medium , c . neoformans of all serotype strains including capsule - deficient strain were incubated and the d value were monitored under various conditions with a bausch and lomb spectronic 20 方法：在含左旋多巴的液体培养液中孵育各种血清型新生隐球菌，分光光度计测定不同条件下液体的d值。
4.
Using i - dopa as a specific substrate , phenoloxidase ( po ) from penaeus chinensis hemolymph was purified by gel - filtration and ion - exchange chromatography , and characterized in terms of its molecular weight and enzymatic properties in this study 本文以中国对虾( penaeuschinensis )的血淋巴为材料，利用凝胶过滤和离子交换等方法，对酚氧化酶( phenoloxidase )进行了分离纯化和生物化学性质研究。
5.
Clinically , parkinson s disease can be treated with drugs , most commonly l - dopa . however , a major limitation of l - dopa treatment is that it is only effective for 3 - 5 years . after this period , patients may exhibit an on off phenomenon i 临床上，大部份都使用l -多帕l - dopa来治疗帕金森症，但此药物治疗法有一个主要限制，这种药物只能发挥3至5年的效用，在此之后，病人会出现使用结果时好时坏的现象有时候药物有作用，有时候药物则无作用。
6.
It was found that prophenoloxidase ( propo ) , isolated as a monomeric protein , had a molecular weight of 87 . 5 kda , and a 77 kda phenoloxidase molecule was often contained in preparations . the 87 . 5 kda propo had a very low enzymatic activity on 0 . 02 mol / l l - dopa , whereas the 77 kda po had a very high enzymatic activity on it 实验发现，酚氧化酶原( prophenoloxidase )的分子量为87 . 5kda左右，在实验操作过程中极易发生降解或自身降解，变成有活性的大小约77kda的酚氧化酶， 1 sds可使该酶原全部被激活而成为有活性的酚氧化酶。
