查询词典 tractional

Http://www.44dx.com objectiveto investigate the therapeutic effects of subconjunctival verapamil on outcome in an experimental model of traumatic proliferative vitreoretinopathy.methodsan experimental model of traumatic proliferative vitreoretinopathy was induced in pigment rabbits,which then were selected randomly to receive either subconjunctival verapamil injection treatment or a placebo injectiondaily for 3 weeks.animals were examined by indirect ophthalmoscopy at weekly intervals for 5 weeks.eyes were enucleated for light microscopy 5 weeks later.resultsfifty-six percent(18 of 32)of the rabbits receiving subconjunctival verapamil injection had developed tractional retinal detachment,whereas eighty-one percent(26 of 32)of control animals had developed tractional retinal detachment(χ2=4.655,p=0.031).the results of clinical examination and light microscopy didn?

http：//www.44dx.com 目的观察维拉帕米(verapamil，ver)对眼后节穿通伤增生性玻璃体视网膜病变(proliferative vitreoretinopathy，pvr)的影响。方法64只青紫蓝兔，每只兔任选其中一只眼制备外伤性pvr模型后随机分为两组，治疗组在模型制备后立即每日结膜下注射2.5 mg/ml的ver0.5ml，对照组则每日结膜下注射生理盐水0.5ml，共21天。模型制备后7天内每天用裂隙灯显微镜及间接立体检眼镜观察伤口、角膜、前房及眼底情况，此后每周第3，7天各检查1次。伤后第35天时常规摘除模型制备眼作光镜观察。

However, at the beginning of PVR process, stimulated and activated by the initiative factors, RPE begin to dislocate from Bruchs membrane , migrate, proliferate, dedifferentiate, transdifferentiate and secrete provisinal extracellular matrix proteins, followed by membrane formation and contraction on both surfaces of the neuroretina and in the vitreous body, resulted in tractional retinal detachment.

PVR发生后，RPE受到始动因素的刺激，开始活化，脱离原位，去分化，移行、增生、发生表型转化等，并分泌细胞外基质(extracellular matrix， ECM)，最终在视网膜前后表面和玻璃体内形成具有收缩能力的增生膜，造成牵拉性视网膜脱离。

The amplitude of acceleration parallel to tractional direction is about ten times as that of acceleration in vertical direction for test points on soil.

地基中测点平行于牵引方向的加速度幅值大约是垂直牵引方向的加速度幅值的10倍。

The most serious complication is neovascularisation and related proliferative vitreotinopathy and tractional retinal detachment.

在其并发症中，最严重的就是新生血管生成及其所导致的增殖性玻璃体视网膜病变和牵拉性视网膜脱离。

Objective To evaluate the long-term results of vitreoretinal surgery without use of intraocular silicone oil or gas in patients with diabetic tractional retinal detachment.

目的观察无硅油或气体等眼内填充的玻璃体视网膜手术治疗增生型糖尿病视网膜病变牵拉性视网膜脱离的长期疗效。

According to low K endurance, variety adaptability and the tractional method made by Liu Hengguan, 45 wheat varieties were identified by field experiment.

以耐低钾力和品种适应性及分级指标进行评定，在微区试验的45份供试小麦品种中耐低钾能力强(1级)的占4.4％，耐性很差(7～9级)的占37.8％，其余介于二者之间(3～5级)的占与57.8％。

After treatment, recurrent vitreous hemorrhage developed in 6 eyes (11%), tractional retinal detachment in 3 eyes (6%), corneal epithelial defect in 2 eyes (4%), and 2 eyes (4%) underwent cataract operation.

在治疗后，六眼(11%)出现复发性玻璃体出血，三眼(6%)有牵引性视网膜剥离，两眼(4%)有角膜上皮受损，而两眼(4%)施行了白内障手术。

The analysed group consisted of 54 eyes excluding pre-ARC tractional retinal detatchment or neovascular glaucoma, follow-up time less than 3 months. The mean duration of vitreous hemorrhage was 7 months and 3 weeks. The length of follow-up averaged 8.3 months.

除冷冻治疗前即有牵引性视网膜剥离或血管新生性青光眼及追踪时间少於三个月片，共有54只眼睛列入统计分析中；玻璃体出血平均时间为七个月零三周，这踪平均长达8.3个月。

The main lithologic characteristic is that the rock types are dominated by light-colored clastic rocks reflecting the oxidation environment with a low maturity. The grain size distribution and sedimentary structure show that the rocks have the sedimentary characters of both gravity currents and tractional currents. Plant fragments are lacking and bioturbation structures are abundant and cyclic. Sandbodies are distributed in a ring shape.

其主要岩性特征为：岩石类型以反映氧化环境的浅色碎屑岩类为主，成熟度较低，粒度分布和沉积构造反映其兼有重力流和牵引流的沉积特点，植物碎屑贫乏而生物扰动构造丰富且具周期性，砂体呈环带状分布。

T show evidence of toxicity between the verapamil treated animals and control animals.conclusionsubconjunctival verapamil decreased the incidence of tractional retinal detachment due to traumatic proliferative vetreoretinopathy in this rabbit model.verapamil at the dose used in this model has no evident toxicity on rabbit eyes.further studies are needed to determine the doseresponse and efficacy of the drug.

结果在模型制备后第35天，治疗组18只眼发生牵引性视网膜脱离，占56.3%，对照组26只眼发生，占81.3%(χ2=4.655，p=0.031)；玻璃体视网膜增生程度治疗组较对照组明显减轻(秩和检验，u=3.5419，p＜0.001)；未发现ver对角膜上皮有明显毒性反应。结论结膜下注射ver能有效抑制外伤性pvr的发展，减少牵引性视网膜脱离的发生率；ver在实验所用剂量对角膜上皮无明显毒性反应。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。