无萎缩肾切开取石术治疗巨大鹿角形肾结石

目的探讨治疗巨大鹿角形肾结石手术疗效。方法对我科在2000年2月～2007年12月采用无萎缩肾切开取石术治疗巨大鹿角形肾结石13例进行回顾性分析。结果13例患者均取石成功。平均手术时间160min，无需要输血，术后无继发出血和感染等并发症，13例术后3个月复查“B”超、IVU均无结石复发和积液。无肾萎缩。结论无萎缩肾切开取石术治疗巨大鹿角形肾结石疗效满意、安全，取石彻底，并发症少，恢复良好。     

缝匠肌髂骨瓣移植治疗股骨中上段骨缺损性骨不连

股骨中上段骨折因骨折严重粉碎、周围软组织损伤大、治疗方法选择不当、手术技术操作失误或内固定不完善,以及术后不恰当的活动或功能锻炼等因素而导致骨折段缺损不愈合。2001年至今应用缝匠肌髂骨瓣移植治疗股骨中上段缺损性骨不连13例,全部病例经16～26个月术后随访,均获得满     

鼠骨关节炎动物模型建立的现状

骨关节炎(osteoarthritis，OA)是临床上常见的疾病。探索骨关节炎动物模型的建立方法，是研究其病因和治疗方法的重要课题之一。鼠是一种理想的动物，所用的方法有关节内手术、关节内注射、关节外手术等，各种方法都有自己的长处和不足。本文就鼠骨关节炎动物模型的建立方法、模型特点及其应用等方面进行综述。     

吻合腓肠浅动脉的游离小腿后侧皮瓣修复手掌软组织及神经缺损

目的 探讨修复手掌软组织及神经同时缺损的新方法。方法 利用吻合腓肠浅动脉的游离小腿后侧皮瓣修复手掌软组织及神经缺损6例。结果 临床应用6例，全部成活，术后10～13个月随访，皮瓣外形近似正常手掌，两点辨别觉为5mm，感觉为S4；患指感觉恢复为S3两例，S4四例。结论 利用吻合腓肠浅动脉皮瓣修复手掌软组织及神经缺损是理想的方法。     

hnRNPU过表达抑制PIM1诱导的细胞衰老的机制研究

目的:探讨人前病毒整合位点1（PIM1）诱导细胞衰老的分子机制。方法:构建过表达PIM1的2BS细胞系,通过Western印迹法和衰老相关β-半乳糖苷酶染色实验测定过表达PIM1是否诱导细胞衰老。免疫沉淀联合质谱分析测定PIM1是否能有效免疫沉淀核异质核糖核蛋白U（hnRNPU）蛋白。运用Real-timePCR和Western印迹法测定PIM1是否影响hnRNPUmRNA和蛋白表达水平。构建同时过表达PIM1和hnRNPU的2BS细胞系,运用Western印迹法和衰老相关β-半乳糖苷酶染色实验检测hnNRPU过表达对PIM1诱导的细胞衰老的影响。结果:与空载对照组相比,过表达PIM1组中衰老信号通路关键基因p53、p21和p16的表达显著增加（p53,t=4.36,P<0.05;p21,t=3.814,P<0.05;p16,t=4.72,P<0.01）,衰老细胞的比例增加（t=6.831,P<0.01）。免疫沉淀联合质谱分析结果显示PIM1能有效免疫沉淀hnRNPU蛋白。PIM1过表达对hnRNPU的mRNA表达水平没有影响（t=0.295,P=0.783）,但是能抑制hnRNPU蛋白的表达（t=33.85,P<0.001）。与只过表达PIM1细胞相比,同时过表达PIM1和hnRNPU细胞,衰老信号通路关键基因p53、p21和p16的表达下降（p53,t=15.317,P<0.001;p21,t=8.012,P<0.01;p16,t=14.08,P<0.001）,衰老细胞的比例降低（t=10.38,P<0.01）。结论:hnRNPU过表达抑制PIM1诱导的细胞衰老。     

Expression of lymphotactin mRNA in experimental crescentic glomerulonephritis

Lymphotactin (LTN) is the sole member of C chemokine, the third subfamily of chemokines. LTN has been shown to be a chemoattractant specific for CD8⁺ cells and/or natural killer (NK) cells, and to be produced by CD8⁺ T cells, NK cells, and mast cells. However, there have been no reports describing its expression in clinical or experimental models of diseases so far. Since glomerular infiltration of CD8⁺ cells is prominent in an animal model of crescentic glomerulonephritis induced in WKY rats by an injection of anti-glomerular basement membrane antibody, we investigated the gene expression of LTN in this model. LTN mRNA was not detected in normal glomeruli but was detected at 0.5 h after the antibody injection, which detection preceded the infiltration of CD8⁺ cells. The expression of LTN mRNA peaked on day 3 and decreased thereafter. We next studied the expression of LTN mRNA in cultured glomerular and vascular cells, and found that glomerular mesangial and vascular endothelial cells could express LTN mRNA when stimulated with IL-1β. These results indicate that the gene expression of LTN is enhanced in the animal model of glomerulonephritis and that intrinsic renal cells are the potential source of the gene expression of LTN in the kidney.     

Preparation of Aminated Macroporous Polyvinyl Alcohol Resins and Evaluation for Bilirubin Adsorption

In the present study we prepared macroporous polyvinyl alcohol beads. A series of bilirubin adsorbents were generated by immobilization of eight amine agents to the beads as ligands. The adsorption of bilirubin was evaluated by in vitro static and dynamic adsorption tests. The results show that these adsorbents have excellent adsorption efficiency and capacity. Among the eight ligands, trimethylamine (TMA), triethylamine (TEA) and 1,6- hexanediamine(HDA) showed the highest adsorption capacity. The adsorption equilibrium can be achieved in half an hour, and the adsorption percentage of bilirubin was up to 80%. Static electricity and hydrophobic interaction played the main role in bilirubin adsorption, and the adsorption was found to match the monolayer model. The excellent adsorption of these adsorbents indicates their potential in clinical treatment.     

胰岛素样生长因子Ⅰ的抗心肌细胞凋亡作用

研究了缺氧条件下引起培养的乳鼠心肌细胞凋亡及IGF－Ⅰ的抗凋亡作用。将原代培养的心肌细胞置于95%N     

二甲基氨氯吡咪对油酸诱导的血管内皮损伤的影响

目的:探讨钠氢交换抑制剂二甲基氨氯吡咪(ＤＭＡ)对低浓度油酸(ＯＡ)所致的血管内皮损伤的保护作用。方法:分别用ＯＡ及ＯＡ＋ＤＭＡ温育离体大鼠胸主动脉环,观察其对乙酰胆碱(Ａｃｈ),硝普钠(ＳＮＰ),Ｌ－Ｎ－硝基精氨酸甲酯(Ｌ－ＮＡＭＥ)的反应。结果:ＯＡ(１０－４ｍｏｌ·Ｌ－１)温育３０ｍｉｎ后,Ａｃｈ诱导的舒张反应减弱,最大舒张从６４%降低到２８%;Ｌ－ＮＡＭＥ诱导的收缩反应也减弱,最大收缩由５２%降低到３４%。而对ＳＮＰ诱导的舒张反应无影响。如用ＤＭＡ(１０－６ｍｏｌ·Ｌ－１)＋ＯＡ温育３０ｍｉｎ,则可部分恢复单用ＯＡ引起的Ａｃｈ的舒张反应及Ｌ－ＮＡＭＥ收缩反应的减弱,Ａｃｈ的最大舒张恢复到４７%,Ｌ－ＮＡＭＥ的最大收缩恢复到４５%。 结论:ＤＭＡ对ＯＡ所致的血管内皮损伤具有保护作用。     

献血者中TTV感染情况调查及部分序列分析

目的调查了解淮阴地区献血者中一种新的肝炎相关病毒——TTV的感染情况.方法用巢式聚合酶链反应(nest-PCR)技术对淮阴地区220名专业献血者进行血清中输血传播病毒(TTV)的检测,并在PUC18中对其开放读码框2(ORF2)基因进行了克隆.结果序列分析表明,该序列与国内外发现的TT病毒AB008394(日本株)、AF079173(中国河北株)对应位置核苷酸同源性为98%和97%,献血者中TT病毒阳性率为18%.结论病毒ORF2基因高度保守,献血者中有较高的TTV感染率.