主动脉

Results Alter 12 weeks of experiment, as compared with the control, the pathologic lesions in aortas were much less severe in the treated group, with the expression of VCAM-1 protein in aortas significantly reduced.

结果 12周末，与去势对照组比较，雌激素可显著减轻主动脉的动脉粥样硬化病理损害，抑制主动脉血管细胞黏附分子－1的蛋白表达。

The aorta lies just to the left of the midline atop the lumbar vertebrae, ending at approximately the lower portion of the fourth lumbar vertebral body, where it bifurcates into the two common iliac arteries.

在腰椎体的上面主动脉就位于中线的左侧，主动脉约在第四腰椎体的下部终止，分支为两条髂总动脉。

2 And 1–7 . Although anteriorly the aorta enters the retroperitoneum at the level of the thoracolumbar vertebral junction, the crura flank the aorta bilaterally, often to the level of the second or third lumbar vertebral body, at or below the level of the renal vascular pedicles.

1–2和1–7，尽管开始主动脉是从胸腰脊椎连接处的水平位置进入腹膜后腔的，但是腕钩从两侧包裹着主动脉，通常要到达第二或第三腰椎体位置，平于或低于肾血管蒂。

Methods:All the 40 Winstar rats were divided into four groups:group A:the rats were fed with normal diet,group B:the rats were fed with only high|cholesterol diet(no vitamin D3),group C:the rats were treated with one intramuscularly injection of vitamin D3(300 000 U/kg) and were denudated of endothelium,followed by high|cholesterol diet,group D:the rats were treated with 5% chitosan added into the diet besides treatment as group C.Ninety days later,the formation of atherosclerosis plaques and the activities of nitric oxide synthase in aortas in the four group rats were investigated.

40只Wistar大鼠均分为：A组；B组：饲以高脂饲料（不含维生素D3）；C组：一次性给予大鼠维生素D3（30万U/kg体重）肌肉注射，以球囊损伤主动脉内皮和饲以含维生素D3（1.25×106U/kg）的高脂饲料；D组在C组的基础上饲料中加入5%壳聚糖。90 d后检测主动脉动脉粥样硬化斑块形成及NOS的活性。

Methods Atherosclerotic rabbit models were made by denudating abdominal aortic intima and constantly feeding high lipid diet (cholesterol concentration: 1.5%); then stents were implanted into atherosclerotic abdominal aorta.

采用兔腹主动脉内膜剥脱术加含1.5%高胆固醇的高脂饮食来建立动脉粥样硬化动物模型，并在此基础上建立兔粥样硬化腹主动脉植入支架模型，并通过组织病理学检查，来揭示支架植入后血管壁和内膜组织形态学变化和病变的发生机制。

For example, doctors use accurate measurements of the aorta to help determine the rate at which the aorta is dilating.

举例来说，医生使用精确测量的主动脉，以帮助确定利率，即是主动脉扩张。

Our results indicated that (1) aortic rings with and without endothelium precontracted by NE to decreased pH induced a relaxation; aortic rings with and without endothelium to increased pH induced a contraction; there is no significant difference in presence and absence of endothelium .(2)NO levels had no significant change in isolated aortic rings presence and absence of endothelium to decreased pH and increased pH ;(3)sulfite levels in isolated aortic rings with endothelium reduced to decreased pH and increased pH. sulfite levels in aortic rings without endothelium had no remarkable change.

结果：①NE预收缩后，pH值降低对内皮完整和去除内皮胸主动脉血管环呈舒张作用；pH值升高对内皮完整和去除内皮胸主动脉血管环呈收缩作用；内皮完整组与去内皮组相比无显著性差异；②pH降低和升高对内皮完整和去除内皮血管环中NO含量无显著性影响；③pH降低和升高均可使内皮完整血管组织中亚硫酸盐含量减少，对去内皮血管中亚硫酸盐无显著性影响。

OBJECTIVE: To compare the rheological properties of stress relaxation in normal and atherosclerotic animal model of ascending aorta, and to identify the effects of atherosclerosis on the stress relaxation properties of ascending aorta.

目的：比较正常和动脉粥样硬化动物模型升主动脉的应力松弛流变特性，确定动脉粥样硬化对升主动脉应力松弛特性的影响。

To compare ascending aorta creep characteristics of the normal and atherosclerotic animal model to identify the effect of atherosclerosis on ascending aorta creep characteristics.

比较正常和动脉粥样硬化动物模型升主动脉的蠕变特性，确定动脉粥样硬化对升主动脉蠕变特性的影响。

METHODS: The ascending aorta, abdominal aorta, and renal artery were harvested within 1 hour of death.

死后1 h之内解剖取死者出升主动脉、腹主动脉、肾动脉，将标本沿纵向切成长25 mm的试样共26个。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。