查询词典 amphetamine

Objectives: Amphetamine use has increased in a number of countries in the world.

目的：在世界的很多国家中，安非他明的使用增加。

How long have you been using amphetamine?

你使用安非他命有多久了？

Young amphetamine users five times more likely to have a bleeding stroke in brain.

年轻的安非他明用户的5倍多，可能有出血性中风的脑组织。

Amphetamine is a drug that stimulates the central nervous system.

安非他命 amphetamine 安非他命是一种会刺激中枢神经系统的毒品。

In amphetamine-treated group, the wet-dog shake frequency was significant higher than control group at 1 and 28 days after the last injection of amphetamine.

安非他命组则在停药后的第一天及第二十八天，产生wet-dog shakes的频率明显的高於同时期的控制组。

A derivative of amphetamine ,such as dextro amphetamine or a phosphate or sulfate of amphetamine ,used as a central nervous system stimulant in the treatment of certain conditions,such as narcolepsy and depression.

硫酸苯丙胺安非他命的衍生物，如右旋安非他命，或其磷酸盐或硫酸盐，在治疗某种病状如发作性睡病和精神抑郁时可用作中枢神经系统兴奋剂

Results:(1) The rats produced amphetamine CPP after treated with 2 mgkg^(-1) amphetamine for 4 days. Ketamine and low, middle, high dose rhynchophylline all could eliminate the CPP effect, and the effect of rhychophylline was increased in a dose-dependent manner. Rhychophylline itself could not induce CPP in normal rats.(2) When compared with normal rats, the NR2B expression in nucleus accubens and amygdaloid of the model rats was obviously increased. Ketamine and middle, high dose rhynchophylline could decrease NR2B expression induced by amphetamine, while low dose rhynchophylline did not affect NR2B expression. Rhynchophylline had no effect on RN2B expression in normal rats.

结果：(1)建立了苯丙胺（2mgkg^(-1)，连续4d）诱导的位置偏爱模型，氯胺酮及钩藤碱低、中、高剂量均可消除苯丙胺诱导的位置偏爱效应，随钩藤碱剂量增加其效应加强，且本身无精神依赖性；(2)苯丙胺模型组大鼠伏核和杏仁核NR2B蛋白表达增加，氯胺酮及钩藤碱中、高剂量抑制NR2B表达，低剂量及本身对NR2B表达无影响。

But there are some long-term sequel associated with amphetamine abuse , such as, re-exposure to a relatively low dose of amphetamine will often prec ipitate a psychotic episode in former amphetamine addicts who have been abstin ent for months to years.

长期重覆使用安非他命者，会产生非常类似妄想性精神分裂的精神病变，此种安非他命引起之精神病经常在戒除药物后即消失殆尽，然而有一部分安非他命成瘾者，即使停药了几年后，当再次投与低剂量的安非他命时，会出现剧烈反应，包括情绪不稳定、精神症或癫痫等的症状。

A research team at the Johns Hopkins University School of Medicine trained baboons and squirrel monkeys to orally self-administer an Adderall-like drug for two to four weeks, and the team found evidence of amphetamine-induced brain damage, specifically, lower levels of dopamine and fewer dopamine transporters on nerve endings in amphetamine-treated primates than in untreated animals.

一个研究小组在约翰霍普金斯大学医学院的训练狒狒和松鼠猴口头自我管理的Adderall等类药物的2到4周，而且该研究小组发现的证据苯丙胺诱导的脑损伤，特别是较低层次的多巴胺多巴胺转运体和减少对神经末梢的安非他明的待遇比未经处理的灵长类动物。

A derivative of amphetamine, such as dextroamphetamine or a phosphate or sulfate of amphetamine, used as a central nervous system stimulant in the treatment of certain conditions, such as narcolepsy and depression.

硫酸苯丙胺安非他命的衍生物，如右旋安非他命，或其磷酸盐或硫酸盐，在治疗某种病状如发作性睡病和精神抑郁时可用作中枢神经系统兴奋剂

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。