Plasma and gastric juice substance P (SP), vasoactive intestinal peptide (VIP) and leu-enkephalin (LEK) were measured by radioimmunoassay kit.
血浆和胃液物质P（sP）、血管活性肠肽（VIP）和亮脑啡肽（LEK）均用放射免疫法测定。
Objective: To explore the leu-enkephalin (L-ENK) levels in the plasma and CSF of patients with cerebral hemorrhage, and the effect of naloxone on the levels.
目的：探讨脑出血患者血浆和脑脊液中亮氨酸脑啡肽(L -ENK)的含量变化以及纳络酮对其影响。
Objective To investigate the effect of conditioned taste aversion (CTA) acquisition and retention on the expression of endogenous leu-enkephalin (LEK) in rats.
目的观察条件性味觉厌恶学习(CTA)对亮脑啡肽(LEK)表达的影响。
Molar content of Leu and Val were 21.72% and 11.24% respectively.
氨基酸组成分析表明其富含亮氨酸和缬氨酸，摩尔分数分别为21.72%和11.24%。
The direct path coefficients of Glu and Leu on protein content were 1.99 and -1.83, respectively.
对蛋白质直接正向和负向效应最大的分别是谷氨酸和亮氨酸，直接通径系数分别为1.99和-1.83。
The project entered implementation stage after China and Ghana signed in September 2014 an agreement for assistance in securing LEU for a research reactor.
2014年9月，中国与加纳签署了《关于为研究堆协助供应低浓铀的协定》，项目正式进入实施阶段。
The total number of life events, number of negative events and LEU value of negative events in LES were all significantly greater in the systemic sclerosis group than in the control group.
系统性硬化病组患者生活事件量表评定中，生活事件发生的总件数、负性事件数和负性事件LEU值均显著大于对照组。
The total number of life events, number of negative events and LEU value of negative events in LES were all significantly greater in the systemic sclerosis group than in the control group.
系统性硬化病组患者生活事件量表评定中，生活事件发生的总件数、负性事件数和负性事件LEU值均显著大于对照组。
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