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Among them, 20 patients were candidates of valve replacement and 18 PDA and pericarditis had their blood samples taken before operation,and 1,2,24 and 48 hours after closure of thorax for measurement of concentrations of CK、CK-MB and TnT,together with ECG recording. Results Of the 60 patients, concentrations of cTnT before operation were normal; 2 hours after aortic unclamping, the correlation coefficient between cTnT and aortic clamping was r = 0.873( P<0.01), the regression analysis showed Y = 0. 019X-0. 026. Of the 20 patients, ECG showed the myocardium was ischemic; CK、CK-MB and cTnT all rose significantly, reaching the peak after closure of thorax. Of the 18 patients, the ECG and cTnT before operation and after closure of thorax were normal; except 2 patients with pericarditis.

结果 60例瓣膜手术患者术前cTnT均在正常值范围内,主动脉开放后2 h时,阻断时间和cTnT的相关系数为r=0.875(P<0.01),回归方程为Y=0.019X-0.026;其中20例瓣膜手术患者心脏经过阻断后,心电图有缺血性改变,周围血液中的CK、CK-MB和cTnT均有明显升高,分别在关胸后2 h达到高峰,数值分别为术前的12.6、9.2和257倍;18例行动脉导管结扎和心包剥脱术的患者术前和关胸后的心电图和血液中的cTnT均正常,CK和CK-MB除2例心包炎患者关胸后出现明显变化外,余均未见改变。

"We decided to quantify the calcium findings in the aorta and stratify calcium by total score, as well as scores in suprarenal, laminar, and bifurcation segments," Dr. Davila said. In general, the highest calcium scores were found in the laminar area, but "these scores did not correlate with a statistically significant increased risk." By contrast, a total calcium score or bifurcation score above the 75th percentile "correlated with a 10-fold increase in risk of cardiac event," he said.

Davila医师表示,我们决定主动脉钙含量的发现、利用总分来分类钙含量,以及肾脏上方、薄层、分支区段的指数;一般而言,指数最高的位置在於层状区域,但是这些指数与心血管风险的增加之间并没有显著的关连;相反的,总钙含量指数或是分支区段指数高於四分位数前75%者,与增加10倍心血管疾病的风险有关。

The section thickness was 5mm,the best section was selected before injection of nonionic contrast material, hen nonionic contrast material l.5m1/kg were injected via the antecubital vein in the rate of 2ml/sec, two serial scannings were obtained began at 6s and 2mm, for the first series the scanning internal was 3 seconds, for the second series, the scanning internal was 7 seconds.3 Methods of studying figureThe CT numbers of lesion on plain CT and on contrasted CT at serial phases were recorded, on which the time-intensity was produced.

计算出不同时相时的CT增强值,绘出动态增强曲线。在不知道病变病理结果的情况下,由三位有经验的医师在不知道病理结果的情况下记录上述病例的动态增强模式及其动态变化。 4。增强峰值与肺血供来源和血管密度的关系的评价其中32例准备手术的SPN,术前行CT同层动态增强扫描后测量增强后第一次循环肺动脉期与主动脉期CT值。然后分别与平扫时CT值比较;术后对瘤体CT测量兴趣区取材并行HE染色,随机取5次,在放大40倍的显微镜下观察5mm范围内直径0.02~0.1mm和>0.1mm的微血管数目,5次的平均值颀士学泣衫艾中文赂要即为兴趣区对应的血管数目,井将其与瘤体增强峰值作相关性分析。

The patient was a 66-year-old male who presented with paraparesis. On examination, strength was 5/5 in both upper extremities and 3-4/5 in both lower extremities. Pricking sensation was relatively retarded below the sixth thoracic vertebra on both sides. Fine-touch sensation was limited below the ninth thoracic vertebra on the right side and below the eleventh thoracic vertebra on the left side. Responses to vibration and joint position sense were well preserved. Deep tendon reflexes were increased in his legs. He had voluntary anal contraction and preserved anal and bulbocavernous reflexes. MRI revealed dissection of the descending aorta from T4 to T10 levels with thrombus present in the false lumen, and the thoracic cord was marked atrophy, especially from T6 to T8 levels. To the best of our knowledge, no such case had been reported so far.

这是一位66岁的男性病患,到院时以下半身轻截瘫来表现,检查后发现其双上肢肌力为5/5而双下肢肌力则为3-4/5,刺痛觉在两侧第六胸椎以下异常,轻触觉在右侧第九胸椎与左侧第十一胸椎以下异常,震动觉与本体感觉则皆属正常,深肌腱反射在两下肢均有异常增强的情形,肛门的主动收缩正常且肛门反射与球体海绵体肌反射均正常,核磁共振影像显示降主动脉在T4到T10处有剥离的情形并於伪腔内发现血栓,此外,病患之胸部脊髓则有明显萎缩的现象,以T6到T8处最为明显,就目前可见的文献资料,并无类似的报告被提出。

Methods:(1) Silica column chromatography and LH-20 were used in phytochemistry study.(2) Based on the extraction ratio of arctiin, the best extraction procedure was acheived under the direction of L9(34) orthogonal experimental design. From 10 types of resins, the one with the maximal binding ability for Arctii was selected and silica-column choramatograpy was used in its seperation and purification procedure.(3) The animal diabetic experimental model in Wistar rats was established with streptozotocin and many biochemical factors were used to indicate the pharmacological effects of arctiin, including glycosylated hemoglobin, serum creatinine, seralbumin, monoxide nitrogen, glycerin trilaurate, cholesterol, HDL-ch, LDL-ch, Blood urea nitrogen, creatinine, SOD, ET, MDA, total Urine protein and albuminuria.

(1)采用硅胶柱层析、聚酰胺层析、LH-20等方法对牛蒡子的化学成分进行研究;(2)采用正交实验设计方法,以牛蒡子苷为指标,确定了牛蒡子乙醇回流提取的最佳工艺;对10种类型大孔吸附树脂进行筛选,筛选出对牛蒡子苷吸附效果最佳的树脂;采用硅胶柱层析法,对牛蒡子苷进一步分离纯化;(3)建立实验性糖尿病大鼠模型,以GLU、TC、TG、HDL-ch、LDL-ch、TB、ALB、BUN、CREA、GHbAlc、NO、SOD、ET、MDA和尿液中TB、ALB为指标,研究牛蒡子苷药理活性;(4)以差速消化法纯化Wistar大鼠的主动脉内皮细胞并进行传代培养,测定牛蒡子苷对高糖条件下RAECs活性、RAECs释放LDH、MDA和NO的变化以及RAECs表达内皮型一氧化氮合酶表达的影响。

For image enhancement of digital radiography, the traditional processing methods originally used in various tomographic imaging modalities aren't available for enhancing the digital radiographic images, especially for the digital chest images because of the wide dynamic range of information between x-ray emerging from the heavily attenuated mediastinum (heart, spine, aorta, and other central features on the radiography) and subdiaphragmatic area and those that have passed through the air- filled lung.

对于数字放射图象的增强,原先用于CT等各种断层医学数字图象的传统处理方法并不能获得满意的效果,尤其对于数字放射胸片图象。其原因在于放射胸片图象具有相对较宽的信息动态范围,从具有非常大吸收系数的纵隔区(放射上指脊柱,心脏,主动脉)及下隔膜区到X线极易穿透的充满空气的肺部。

At 14 days after operation, VCAM-1 was still positive on the surface of uncovered endothelium, while more abundant expression was seen in the bottom of neointima near internal elastic lamina. Conclusions NF-κB activation and VCAM-1 expression participate in the inflammation of rat denudated artery.

核因子κB和血管细胞黏附分子1参与大鼠的主动脉损伤后的炎症过程;核因子κB的活化与失活成动态变化;血管细胞黏附分子1不同时间表达在不同的部位,核因子κB的活化与失活在血管细胞黏附分子1的表达与消退之前,核因子κB对血管细胞黏附分子1的表达起调节作用。

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