查询词典 arteries

The pulsative index and resistance index of the ovarian and uterine arteries blood flow and endometrial pattern and thickness were measured by transvaginal color Doppler imaging on the day ofHCG administration.

国内这方面的报导尚非常少见。我们于2002年11月至2003年11月对来院行常规IVF-ET助孕术的174例不孕患者，于治疗周期的第8天开始应用TV-CDS测定卵巢动脉和子宫动脉的血流图，以监测卵泡发育及子宫内膜发育。

By non-enhancement scan, 12 cases showed low density mass, 4 cases equal density mass, 1 case slightly high density mass, and 2 cases stippled calcification mass. By enhancement scan, 13 cases showed inhomogenous enhancement in cortical phase, 2 cases showed slight to moderate enhancement. Another 2 cases of small cystic RCC presented enhancement of wall with nodules and the partition. The enhancement of all tumor cases faded away in the following parenchymal phase and pyelographic phase, demonstrating some degrees of "fast washing out" phenomenon; 4 cases presented with pseudocapsule. The reconstruction of 17 "MPR/MIP" and 9 "VR" showed clearly the relations of kidney vessels, tumors and neighbor tissues and accessory renal arteries were founded in 2 cases.

结果：17例中小实性肾癌15例，小囊性肾癌2例；CT平扫呈低密度12例，等密度4例，稍高密度1例，伴有斑点状钙化2例；增强扫描皮质期13例呈不均匀明显强化，2例呈轻中度强化，另2例小囊性肾癌的囊壁、壁结节及囊内分隔明显强化；实质期、肾盂期扫描所有肿瘤强化均迅速减退，呈&快进快退&改变；4例可见假包膜。17例MPR/MIP、9例VR重建均能清楚显示肾血管、肿瘤与邻近组织的关系，并发现副肾动脉2例。

Results The bletilla colloid was a homogenous viscous colloid whose relative viscosity was 2324.6 mm2/s. It was easily injected through 4-F catheter and hyperattenuating under fluoroscopy, meanwhile, with good histocompatibility and hemo-compatibility, without pyrogenetic response and toxicity. In vitro, the mixture of bletilla colloid and MMC did not produce separation and suspention phenomena but released 50%of MMC at 1.8h and 100%at 3.4h. The bletilla colloid mainly embolized peripheral arteries, maintaining occlusion for 5 weeks and without formation of collateral circulation. The injuries of normal hepatic tissues were slight, without hepatic cytonecrosis.

结果 (1)白芨胶为一种均质的胶状物，有一定粘滞性，相对粘度2 324.6 mm2/s，不透X线，易经4F导管注射；(2)白芨胶具有良好的血液相容性和组织相容性，无致热原性及毒性作用；(3)白芨胶-丝裂霉素C体外混合后，无分层及悬浮现象，释放MMC 50%约需1.8小时，100%需3.4小时；(4)白芨胶主要栓塞末梢小动脉，栓塞牢靠，维持时间可达5周，不易形成侧支循环；(5)白芨胶栓塞对正常肝组织损伤轻微，未出现肝细胞坏死。

These arteries branch and rebranch to form arterioles.

这些动脉又一再分支形成小动脉。

Acquired colonic diverticula usually form at the site of nutrient arteries, the vasa recta, that extend into the submucosa, because these locations are the weakest areas of the colonic wall.

后天性结肠憩室炎往往发生于滋养动脉、直小血管，累及粘膜下层，因为这些部位是结肠壁的最薄弱区。

Objective: The purposes of the present study are as follows: 1 To study the effect of direct contact with VSMC on transdifferentiation of MSC; 2 To construct MSC of Dual-stable expression of AT2R gene medicated by tetracycline regulatable system.; 3 To investigate the effects of AT2R gene medicated by tetracycline regulatable system on neointimal hyperplasia in rat carotid arteries after balloon angioplasty.

本实验体外观察MSC与VSMC在直接接触培养下的分化情况，并以MSC为载体，通过体外细胞基因转染及筛选，获得双重稳定受到强力霉素调控表达AT2R基因的MSC，将此受到调控表达的AT2R基因导入大鼠颈动脉球囊损伤动物模型中，观察MSC细胞移植实现AT2R基因在体可调控表达在新生内膜中形成的作用及潜在意义。

①Rat MSC and VSMC were cultured and identified, respectively. MSC were labeled with DAPI firstly, and then co-cultivated with VSMC. The changes of morphology and ultrastructure of co-cultured cells were observed. Immunfluorescence analysis was performed by using monoclonal antibodies against specific antigen.②We established the regulatable system in two steps: a stable MSC line expressing rtTA has been constructed and characterized firstly by transfected with pUHD 17-1hyg and then selected by hygromycin B; in a second step, this line was used for trandfer the AT2R gene to MSC to get the well establishing double stable MSC lines;③The expression of AT2R regulated by doxycycline was evaluated by western blot;④The MSCs were transduced into rat carotid arteries with regulatable AT2R gene after the establishment of rat carotid balloon injury restenosis model. The intimal/medial area ratio were measured by digital analysis system.

研究方法：(1)密度梯度离心法及胶原酶消化法分别培养原代大鼠MSC及VSMC，细胞共培养并行免疫荧光化学染色和透射电镜观察超微结构；(2)组成受Dox调控的哺乳动物表达系统的四种成分的转化、扩增及提纯并酶切鉴定；(3)采用常规分子生物学方法连续两个回合转染体外培养的MSC，并分别采用发光计检测不同细胞克隆萤光素酶活性改变以及RT-PCR方法检测AT2R目的基因mRNA表达情况，根据各个细胞克隆受Dox调控表达的程度，选择低背景、高诱导表达AT2R的细胞系，作为双重稳定MSC细胞系；蛋白免疫印迹法观察该细胞系在Dox调控下AT2R表达的时相性、持续性及在不同浓度Dox调控下的表达情况；(4)建立大鼠颈动脉球囊损伤动物模型，将双重稳定MSC在术中导入血管，分别于14 d、28 d进行病理切片，检测可调控AT2R对新生内膜增生的影响；采用RT-PCR免疫组织化学免疫荧光等技术观察AT2R基因在新生内膜中的表达以及细胞外基质成分表达的改变，TUNEL法检测血管组织中细胞凋亡的变化情况。

objective:to investigate the relaxative characteristics of procyanidins on coronary arteries in the dog and its mechanism.

目的：研究原花青素在狗冠状动脉上舒张特征和机制。

Few branches and little femoral head blood perfusion were observed in all of retinacular arteries, while hip joint was internally rotated with the sick leg straightened in the patients.

对12例青壮年股骨颈骨折在2～5 d内进行旋股内、外及支持带动脉造影，造影中均采用中立位无牵引、中立位5 kg牵引及内旋位无牵引3种形式。

Methods The cerebral arteries of 81 patients with SAH were examined by DSA and the results were analyzed.

81例自发性蛛网膜下腔出血患者，行全脑DSA检查，并对其结果进行分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。