查询词典 factor

Abstract］ AIM:To investigate the role of nuclear factor κB in the induction of iNOS gene by TNFα and LPS in endothelial cells and the effect of antioxidant on the induction of iNOS. METHODS:Nitrite was determined based on Griess reaction. iNOS mRNA was analyzed using Northern blot. NFκB in the cell nucleole was detected with electrophoretic mobility shift assay.RESULTS:(1)NO production and iNOS mRNA expression induced by LPS and TNFα was blocked by pyrrolidine dithiocarbamate or N-acetylcysteine.

研究表明内皮细胞激活时iNOS表达的调控主要发生在转录水平。iNOS基因的启动子区域含有多个转录因子的结合位点包括NFκB、AP-1、NF-IL6，Oct-1等［2］，而核因子κB(nuclear factor κB， NFκB)被认为在多种参与炎症反应的蛋白质因子的基因调控中担任重要角色，因而可能是内皮细胞激活的调控中一个重要转录激活因子［2，3］。

Ransforming growth factor beta TGF-β is a potent growth suppressor of normal epithelial cells. However, many types of invasive cancer cells (e.g. breast cancer frequently overproduce TGF-β to enhance their growth and metastasis. Quite frequently, these cells do not possess a functional type II TGF-β receptor, indicating an aberrant TGF-β signaling is responsible for promoting cell growth.

Transforming growth factor beta 对於正常的上皮细胞是一个很强的生长抑制因子，然而，许多种具有蔓延侵犯性的癌细胞常常是表现大量的 TGF-β来促进细胞生长与转移，这些癌细胞通常不表现具有功能性的第二型 TGF-β receptor，显示有另类的 TGF-β讯息传递可以促进细胞生长。

Brain-derived neurotrophic factor is the most abundant neurotrophin in many parts of brain, such as pallium, hippocampus and so on.

脑源性神经营养因子(brain-derived neurotrophic factor，BDNF)作为脑组织中含量最丰富的神经营养因子，在中枢神经系统内合成并广泛存在于脑组织，包括大脑皮层、海马、基底前脑、纹状体、下丘脑和小脑，其中以海马和皮层中含量最高。

Because of switching actions, power-factor- correction Boost converters are essentially piecewise smooth nonlinear systems, which leads to the occurrence of fast-scale bifurcations.

由于开关的动作，功率因数校正(power-factor-correc- tion，PFC) Boost变换器本质上是分段光滑的非线性系统，从而导致快时标分岔的产生。

Objective To evaluate the role of vascular endothelial growth factor in the pathophysiology of nasal polyp.

中文摘要：目的探讨血管内皮生长因子(vascular endothelial growth factor， VEGF)在鼻息肉组织中的表达及其在鼻息肉发病过程中的意义。

Minimizing the Q-factor while keeping the shoe from rubbing is an ideal position.

这种的Q-Factor 设计将保鞋子的避免摩擦，是一种非常有创意的想法。

Fully adjustable and lightweight, the CX 7 can even adjust the 'Q-Factor'- that is, the distance from the pedal to the crank.

充分的可调性，以及非常轻的重量，CX 7 甚至可以调节"Q-Factor"。

Objective To explore the effect of controlled release of nerve growth factor on peripheral nerve defect repaire by acellular nerve graft.

目的 探讨化学去细胞异体神经复合缓释神经生长因子（nerve growth factor，NGF）修复周围神经缺损的效果。

Objective To study the induction of transforming growth factor-β1(TGF-β1) in reparative process of mouse experimental alveolar bone defect.

目的 观察转化生长因子β1 (transforming growth factor-β1，TGF-β1)对鼠牙槽骨缺损修复的诱导作用。

Objective To explore an experimental method of transfecting the marrow stromal stem cells with the reconstructed PGL3-transforming growth factor-β1 （TGF-β1） gene and to evaluate the feasibility of self-induction of MSCs to the chondrocytes in vitro so as to provide a scientific and experimental basis for a further ＂gene enhanced tissue engineering＂ research.

目的 探讨将编码细胞转化生长因子β1（transforming growth factorβ1，TGF—β1）的重组PGL3-TGF-β1质粒转染兔骨髓基质干细胞（marrow stromal stemceils，MSCs），体外通过自分泌、诱导作用向软骨细胞方向分化的可行性，为基因加强组织工程学修复软骨损伤提供体外实验依据。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。