Studies on the synthesis of schiff bases of l - dopa 左旋多巴胺希夫堿的合成研究
Both in de novo patients and in patoents treated with - dopa , dhec shows slight side effects ) 服用左旋多巴及dhec治療的病人僅有輕微的副作用(表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:在含左旋多巴的液體培養液中孵育各種血清型新生隱球菌,分光光度計測定不同條件下液體的d值。
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 本文以中國對蝦( penaeuschinensis )的血淋巴為材料,利用凝膠過濾和離子交換等方法,對酚氧化酶( phenoloxidase )進行了分離純化和生物化學性質研究。
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 臨床上,大部份都使用l -多帕l - dopa來治療帕金森癥,但此藥物治療法有一個主要限制,這種藥物只能發揮3至5年的效用,在此之后,病人會出現使用結果時好時壞的現象有時候藥物有作用,有時候藥物則無作用。
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 實驗發現,酚氧化酶原( prophenoloxidase )的分子量為87 . 5kda左右,在實驗操作過程中極易發生降解或自身降解,變成有活性的大小約77kda的酚氧化酶, 1 sds可使該酶原全部被激活而成為有活性的酚氧化酶。
英文解釋
amino acid that is formed in the liver and converted into dopamine in the brain 同義詞:dihydroxyphenylalanine,