一氧化氮

Ectogenic nitric oxide inhibits proliferation of neural stem cells in mice ［J］.

外源性一氧化氮对小鼠神经干细胞增殖的抑制作用［J］。

Objective: To study the effects of L-arginine on endogenous nitric oxide release and hemorheology in rabbits.

目的： 研究L-精氨酸对家兔内源性一氧化氮释放和血液流变性的影响。

Objective To study the dynamic changes of the concentration of plasmatic and hepatic endothelin-1 (ET-1) and nitric oxide in endotoxic rats.

目的 采用大鼠内毒素血症模型，观察血浆、肝组织内皮素-1(ET-1)和一氧化氮浓度的动态变化，探讨两者的相互关系。

The levels of nitric oxide, and the activities of NOS and its isoforms were measured by chemical enzymic method.

化学酶法检测CFs培养液中的一氧化氮浓度以及总NOS和其亚型的活性。

As an immunomodulator NO may play a role like a double-edged sword since it expresses both in immuonchalleged and immunosspresed states. 2. After received external stimulus the morphology of ependyma of SFO could be changed and varied with time course, particularly its cellular apoptosis do occur and earlier than the ordinary areas of the brain. 3. Astrocytes in SFO could express cFos protein induced by LPS, suggesting the cells may maintain homeostasis in the brain in a longer period and modulate immune state of the brain. 4. As a CVO, SFO may sense changes of blood-bearing immunosignals earlier and instantly response to them, thus as one of windows of the brain SFO do take part in immunomodulation within the brain.

通过我们的实验结果我们可以得出这样一些初步的结论：1、一氧化氮作为免疫调质参与了机体免疫，它既能在免疫激发状态下又可在免疫抑制状态下进行表达提示，NO在脑内免疫调节中的作用可能是双向的。2、穹窿下器的室管膜形态在接受外界刺激后，随着时间的变化而不同，扫描电镜下的凋亡形态虽需进一步证实，但室管膜细胞确实发生了凋亡，并且穹窿下器发生的较早。3、穹窿下器内的星形胶质细胞在给予大肠杆菌后确实可以表达c-fos蛋白，并可能通过自身的激活来较长时间的维持体液的动态平衡，调节脑内免疫状态。4、穹窿下器作为感受性室周器官之一，能够较早的感受血携免疫信息的改变并及时作出反应，可能作为外周免疫信息进入脑内的窗口之一来参与脑的免疫调节。

In the present study changes of NOS positive cells after injection of LPS and apoptotic ependymal cells, the relationship between expression of immediate early gene c-fos and astrocytes, and comparison of changes between SFO and rest regions of the brain in different time-points were investigated with NADPH-d histochemistry, apoptosis in SITU detection of TUNEL, TEM and SEM, fluorescein double labeling of immunohistochemistry, and laser scanning confocal microscope .

为了证实穹窿下器在脑内免疫调节系统中的作用，在本研究当中，应用了NADPH-d的组化方法、TUNEL末端标记法、扫描及透射电镜方法、免疫组织化学的荧光双标法及激光扫描共聚焦显微镜技术，来研究在腹腔内给予大肠杆菌内毒素后，脑内的一氧化氮合酶细胞的变化、室管膜细胞的凋亡、早期即刻基因c-fos的表达与星形胶质细胞之间的关系，以及穹窿下器与其它脑区相比较时的特异性改变。

In the present study changes of NOS positive cells after injection of LPS and apoptotic ependymal cells, the relationship between expression of immediate early gene c-fos and astrocytes, and comparison of changes between SFO and rest regions of the brain in different time-points were investigated with NADPH-d histochemistry, apoptosis in SITU detection of TUNEL, TEM and SEM, fluorescein double labeling of immunohistochemistry, and laser scanning confocal microscope.

为了证实穹窿下器在脑内免疫调节系统中的作用，在本研究当中，应用了NADPH刁的组化方法、TUNEL末端标记法、扫描及透射电镜方法、免疫组织化学的荧光双标法及激光扫描共聚焦显微镜技术，来研究在腹腔内给予大肠杆菌内毒素后，脑内的一氧化氮合酶细胞的变化、室管膜细胞的凋亡、早期即刻基因（immediate early genes沁－fos的表达与星形胶质细胞之间的关系，以及穹窿下器与其它脑区相比较时的特异性改变。

The steroid-induced ANFH might be related to the lower level of NO and the descent of fibrinolytic activity.

激素性股骨头缺血坏死可能与一氧化氮含量及纤溶系统的活性下降有关。

To investigate the effect of activin on neurite growth in dorsal root ganglia and the gangliocyte survival as well as the relationship between activin function with nitric oxide release, dorsal root ganglia were collected from E8 chicken embryos and the growth of cultured DRG in vitro was observed by primary culture method.

为了探讨激活素促进鸡胚背根神经节（dorsal root ganglia，DRG）突起生长、维持神经节细胞生存作用及其与一氧化氮释放的关系，实验采用8d的鸡胚分离背根神经节，原代培养法，观察鸡胚背根神经节的体外生长情况。

We compare it with the Votalin treating that have been proved effective on clinic during the experiment, and detect intraosseous pressure in the upper part of tibia and the content of nitrogen monoxidum in articular cartilages、 synovial membranes、 synovias of knee joint, we can initially identify the mechanism of action that this theropy treat on gonarthritis, supply the theoretical and experimental evidence for making general use of it on clinic.

以致骨内高压的方式造模，于兔腹股沟中点以下10mm处结扎并切断右侧股静脉建立兔膝骨关节炎模型，造模10周后各组采用相应的方法进行治疗，4周后将骨髓活检穿刺针穿刺达胫骨上端髓腔内，以三通管与传感器相连检测骨内压，后将动物处死，取膝关节软骨、滑膜、关节液，检测一氧化氮含量。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。