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They are already being evaluated in clinical trials as potential therapeutic agents for major human neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease and motor neuron disease. However, delivery of polypeptide growth factors to compromised neurons in the CNS is problematic because their plasmatic half-life are very short and their abilities to cross the blood-brain barrier are theoretically null.

然而由于中枢神经系统中存在血脑屏障，神经营养因子类物质难以通过血脑屏障而到达靶部位；同时又因为神经营养因子在体内生物半衰期较短，使得全身性用药效果不够理想，另外还往往产生意想不到的副作用，如何解决这些问题对于深入研究神经营养因子在神经损伤及神经系统退行性疾病中的作用及开展临床应用前景研究有着十分重要的意义。

1 Respiratory defenses are compromised by mucociliary paralysis f rom smoking andby secretions plugging airways in lungs that arescarred and sacculated by the changes of chronicobst ructive pulmonary disease.

呼吸道防御受到由吸烟产生的粘液纤毛麻痹和塞入肺部气道的分泌物所损害，肺部则由慢性阻塞性肺病的变化而形成疤痕和囊状物。

If you don't have an adequate intake of vitamins and minerals, you won't be able to produce the number of immune cells you need, and the immune cells you do produce may be compromised,' Dr. Shankar says.

如果不摄入足够的维他命和矿物质，就无法制造所需数量的免疫细胞，而制造出来的免疫细胞也可能有问题。

If you dont have an adequate intake of vitamins and minerals, you wont be able to produce the number of immune cells you need, and the immune cells you do produce may be compromised, Dr. Shankar says.

如果不摄入足够的维他命和矿物质，就无法制造所需数量的免疫细胞，而制造出来的免疫细胞也可能有问题。

It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.

主要研究结果如下：1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用，应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用，同时，二甲基二硫是很有潜力的仓储害虫防治熏蒸剂，要深入进行二甲基二硫控制有害生物的技术研究，以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。

Gabriel Stricker, a Google spokesman, said Google's decision to publicize the attacks was motivated in part by its desire to alert activists that their accounts couldhave been compromised.

Gabriel Stricker，美国Google公司发言人，对媒体说Google公司之所以对外高调宣扬中国网络攻击的目的之一就是为了警示那些(反中，民主，ZD，TD，JD)民间活动份子，他们的账户可能都被破解了。

Objective To investigate the effect of adenovirus-mediated gene therapy with vascular endothelial growth factorand basic fibroblast growth factordelivered into the subdermal space to treat compromised skin flaps in rats.

目的探讨以腺病毒载体局部应用血管内皮生长因子和碱性成纤维细胞生长因子基因治疗对大鼠缺血皮瓣生存的影响。

Despite its unarguable efficiency, the result consistently creates upto a third of the units to be compromised; without views, facing other units.

暂且不论显而易见的高效率，这种形式的一个结果是至少有三分之一的单元需要妥协，他们沒有良好的视野，直接面对其它单元。

Osseointegration of uncemented components does not seem to be compromised in these patients in the short term.

这些患者无骨水泥假体与骨的整合在短期内看起来并不困难。

Osseointegration of uncemented components does not seem to be compromised in these patients in the short term.

这些患者无骨水泥假体与骨的整合在短期内看起来并不困难。众位老师们辛苦了初次翻译，望指正！

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切