1·Treatment of Parkinson's disease with L-3,4- dihydroxyphenylalanine (L-DOPA) has its limits.
运用 L-3，4- dihydroxyphenylalanine（左旋多巴）临床治疗帕金森有其局限之处。
2·L-dopa, the most popular medication for Parkinson's disease, increases the frequency and vividness of dreams, whereas antipsychotic drugs that block dopamine reduce dreaming.
治疗帕金森综合症的常用药“L - Dopa”会增加做梦的次数和活性，而抑制多巴胺的安定药会减少做梦。
3·Often patients are given prescriptions for levodopa, or L-dopa, which is converted into dopamine by enzymes in the brain.
经常患者拿着左旋多巴的处方，左旋多巴在脑细胞中在酶的作用可以转变为多巴胺。
4·OBJECTIVE: To prepare L-dopa methyl ester hydrochloride eye ointment and establish a method for its quality control.
目的：制备盐酸左旋多巴甲酯眼膏并建立其质量控制方法。
5·Tyrosinase performs action for catalytic oxidation of L-tyrosine and L-dopa to form melanin.
酪氨酸酶有催化氧化l -酪氨酸及L -多巴生成黑色素的作用。
6·People with Parkinson's or taking L-dopa should not use methyl donors like TMG without a physician's specific approval and supervision.
患有帕金森或左旋多巴的人，不应使用甲基供体像甜菜碱，在没有医生的具体审批和监督的情况下。
7·The possibility of the production of L-dopa by tissue culture of Mucuna and the problems in immobilized cell culture were discussed.
此外，讨论了用组织培养方法生产左旋多巴的可能性和固定化细胞培养等问题。
8·Thus A2A receptors in forebrain neurons may contribute to the behavioral sensitization to L-DOPA, perhaps indicating that A2A antagonists could reduce the risk of LID.
额叶神经细胞的阿糖腺苷a2a受体可能导致对左旋多巴的行为的敏感性，也许表明阿糖腺苷a2a受体拮抗剂能够降低LID的风险。
9·L-dopa substitutive therapy had less effect, the drugs of improving microcirculation had a better effect.
左旋多巴替代治疗效果不明显，给予改善微循环药物效果满意。
10·They were then given L-DOPA or a placebo and asked to imagine holidaying in those destinations.
然后给他们服用左旋多巴或安慰剂，然后想象在这些不同地方度假。