小儿腹股沟嵌顿疝术式探讨

目的 探讨经腹横纹切口腹腔内行小儿腹股沟嵌顿疝还纳修补术的疗效。方法 自2000年以来我们共收治小儿腹股沟嵌顿疝36例，全部采用经腹横纹切口腹腔内还纳修补的方法，对本方法与传统治疗方法优缺点进行对比分析。结果 本方法无副损伤，无血肿与复发。结论 经腹横纹切口腹腔内行小儿腹股沟嵌顿疝还纳修补术是一种有效的方法，可推广应用。     

Magnetically-labeled sensitized splenocytes to identify glioma by MRI: a preliminary study.

This study investigated the feasibility of imaging the migration and incorporation of magnetically-labeled sensitized splenocytes in an experimental 9L glioma brain tumor model. Splenocytes collected from tumor-bearing (sensitized splenocytes) or control (nonsensitized splenocytes) host rats were analyzed to determine the population of different cells, labeled with ferumoxides-protamine sulfate (FePro) and injected intravenously to recipient rats (N=4, for each group) bearing intracranial 9L tumors. Day 3 postinjection of splenocytes multiecho T2*-weighted and three-dimensional (3D) gradient echo MRI were obtained using a 7 Tesla MR system. R2* (1/T2*) maps were created from the T2*-weighted images. Signal intensities (SIs) and R2* values in the tumors and contralateral brain were determined by hand drawn regions of interest (ROIs). Brain sections were stained for the evidence of administered cells. Both 3D and T2*-weighted MRI showed low signal intensity areas in and around the tumors in rats that received labeled sensitized splenocytes. Prussian blue (PB), CD45- and CD8-positive cells were present in areas at the corresponding sites of low signal intensities seen on MRI. Rats that received labeled nonsensitized splenocytes did not show low signal intensity areas or PB positive cells in or around the implanted tumors. In conclusion, the immunogenic reaction can be exploited to delineate recurrent glioma using MRI following systemically delivered magnetically labeled sensitized splenocytes or T-cells.     

立体视锐度与发样十五种元素关系初探

本文采用X－射线荧光分析法测定抚州市区152名健康中小学生（其中立体视锐度异常29人）的头发中Ca、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Mg、Pb、Cd、Mo、Se和Ge等15种元素的含量。结果表明立体视锐度异常儿童头发中Se元素含量较正常组低（P＜0．05），而Zn／Cu比值则明显高于正常组（P＜0．05），提示给予富含硒元素的食物，提高体内硒含量，调整Zn／Cu比值．对防治立体视税度导常发生具有重要作用。     

1,6—二磷酸果糖对手术后应激病人应用全肠外营养支持效果的影响

本文在胃癌行全胃或胃大部切除术引起的中等程度应激病人，随机分组对比观察了全肠外营养或ＴＰＮ加用１，６－二磷酸果糖的效果。结果显示，与单纯ＴＰＮ相比，ＴＰＮ加用ＦＤＰ后血清皮质醇和胰高血糖素等应激激素水平有所下降，尿中３－甲基组氨酸排出减少，累积氮平衡增加。     

RELATIONSHIP BETWEEN PLATELET CYTOSOLIC FREE CALCIUM CONCENTRATION AND PLASMA RENIN ACTIVITY

1. Plasma renin activity (PRA) and platelet cytosolic free calcium concentration ([Ca2+]i) were simultaneously determined in 18 untreated essential hypertensive subjects and 17 normotensive controls. A significant positive correlation was found between [Ca2+]i and PRA (slope = 42 nmol/l/ng/ml/h) in these 35 subjects. 2. Two determinations more than one week apart in nine subjects confirmed the parallel fluctuations of [Ca2+]i and PRA. A strict sodium restriction produced a progressive PRA elevation associated with a parallel rise in [Ca2+]i in one subject. 3. These results are consistent with the hypothesis that angiotensin II causes a concentration-dependent calcium mobilization.     

应用单宁酸-氯化铁法观察大鼠子宫血管构筑

目的:光镜下观察大鼠子宫不同部位微血管构筑。方法:应用单宁酸-氯化铁法(TA-Fe法)灌流固定大鼠,取子宫前、中、后段做冰冻切片,氯化铁显色,显微摄影。结果:子宫前、中段粘膜固有层中子宫腺间穿行着小血管和毛细血管,在上皮下形成毛细血管网,肌层近外膜处的动脉较粗大,边走行边分支,有些分支反向走行,与其它动脉分支互相吻合成血管网。后段中央部位动脉增粗,蜿蜒走行,分支不规则,近外膜的动脉向内分支,发出更多小动脉和毛细血管,形成致密的血管网。结论:TA-Fe 法可清晰显示子宫微血管,子宫壁的动脉明显弯曲,可见反向分支,内膜中未见螺旋动脉。     

东北边境地区吸血蠓的调查研究

1980～1988年在东北边境的漠河、珲春县等10个县区采获吸血蠓2属37种,其中发现4个新种和4个国内新记录。不显库蠓(35.7％)和刺螯库蠓(34.9％)为优势蠓种。不同生境、场所和季节的蠓种组成有所不同。灰黑库蠓、淡角库蠓和端斑库蠓在整个活动季节均只出现一次高峰,而不显库蠓、刺螫库蠓和兴安库蠓在整个活动季节均出现两次高峰。刺螫库蠓的活动季节最长,为11旬,端斑库蠓最短,仅为5旬。刺螫库蠓、不显库蠓、兴安库蠓和灰黑库蠓在昼夜24小时均出现晨、昏两次活动高峰,而边缘库蠓只在凌晨出现一次晨峰。     

新生儿肠旋转不良的诊治分析

目的 分析新生儿期先天性肠旋转不良的临床特点及诊治方法。方法 回顾分析1996～2003年12例新生儿期先天性肠旋转不良，男10例，女2例，就诊时出生7～75d，平均45d，术前均经泛影葡胺口服及灌肠造影确诊后行Ladd术，附加阑尾切除术。结果本组1例术后并发粘连性肠梗阻二次手术行粘连松解术，其余11例无并发症，全部治愈出院。结论 本病的发病机制是由于并发急性肠扭转所致高位十二指肠的梗阻，主要临床特点是反复间断性胆汁性呕吐，口服和灌肠的消化道造影是诊断本病的最可靠依据。Ladd式手术是本病手术治疗的最佳选择，且效果满意。     

医源性腓总神经伤分析

目的：总结40a来收治的48例医源性腓总神经损伤的临床资料，探讨其损伤机制和特点。方法：通过随访，依据其损伤原因和机制分类统计。结果：牵拉压迫伤33例，占69％；手术切割伤12例，占25％。导致腓总神经损伤的原因中以石膏压迫为最多，占37％，牵伸性损伤占31％。结论：骨科医师必须具备丰富的解剖知识和责任心，重在预防，一旦发生损伤，应早期诊断，采用有效的方法及时治疗。     

新型重组人肿瘤坏死因子药代动力学的实验方法

目的 为探讨新型重组人肿瘤坏死因子（nrTNF α）药代动力学而建立生物样品中nrhTNFα的检测方法。方法 （1）方法Ⅰ（RA）：动物肌注^125 Ⅰ标记的nrhTNFα后，测定各生物样品中的总放射活性；（2）方法Ⅱ（HPLC－RA）；上述生物样品无经HPLC分离后，收集并测定其中^125Ⅰ－nrhTNFα部分的放射活性；（3）方法 ⅢELISA法。结果 RA，HPLC－RA法检测的nrhTNFα质量浓度与放射性呈直线相关（RA，r=0.999HPLC－RA,r=0.999)。ELISA法证明nrhTNFα的酶联免疫检测药盒适用于nrhTNFα的检测，nrhTNFα的标准曲线与nrhTNFα的标准曲线显正相关，r=0.994,这一检测系统与其他细胞因子包括IFNα，TNFβ，IL－2和IL－6无交叉反应。结论 RA，HPLC－RA和ELISA法均可作为nrhTNFα的药代动力学实验方法。