In vitro lipofectamine mediated NF-κB decoy oligodeoxynucleotides transfection of Kupffer cells

Objective To study the transfection effects of nuclear factor-KappaB(NF-κB)decoy oligodeoxynucleotides(ODN) to Kupffer cells (KCs) mediated by lipofectamine,and investigate it's suppression effects on KCs activation. Methods Twenty-four Wistar rats were divided into three groups (n=8).(1)Control group,in which the normal KCs were isolated.(2)LPS group,in which 1 ms/L LPs was added to the culture system.(3)NF-κB decoy ODN group,in which KCs were transduced with NF-κB decoy ODN (4μg×105KCs)prior to LPS stimulation.The transfection efficiency Was assayed,and the phagocytosis function,NF-κB(P65) translocation,CD40 mRNA expression of KCs were also detected respectively. Results Kupffer cells were obviously activated after LPS stimulation.the phagocytosis function was reinforced.the activity of NF-κB transloeated from cytoplasm into nucleus was obviosly increaced.The co-stimulatory molecules expression(CD40 mRNA)significantly increased compared with control group(t=4.01,P<0.01).NF-κB decoy oligodeoxynucleotides can efficiently transfected into KCs mediated by lipofectamine,which can obviously suppress KCs activation,and downregulate the expression of downstream gene(compared with LPS group,t=4.89,P<0.01). Condusion NF-κB decoy ODN can efficiently transfect into KCs and inhibit it's activation.     

螺旋CT和彩色多普勒血流显像检查对胰腺癌可切除性的评估价值

Objective To determine the value of helical computed tomography (HCT) and color doppler flowing imaging (CDPI) in evaluating the resectability of pancreatic cancer. Methods The clinical data of 114 patients with pancreatic cancer who had been admitted to the Affiliated Hospital of North Sichuan Medical College from January 1995 to December 2002 were retrospectively analyzed. The values of HCT and CDPI in assessing the resectability of pancreatic cancer were determined according to the results of operation and pathological examina-tion. All the data were analyzed by chi-square test and Fisher exact probability. Results Of all patients, 109 were examined by HCT, 97 by CDPI and 96 by HCT+CDPI. For patients examined by HCT, the resection rates of pancreatic head cancer, pancreatic body and tail cancer and total pancreatic cancer were 45.3% (39/86), 26.3% (5/19) and 0 (0/9), respectively. The resection rate of pancreatic head cancer was higher than that of pancreatic body and tail cancer (χ2=8.965, P<0.05). With the increase of tumor size, the invasion rate and metastasis rate were increased and the resection rate was decreased (z=6.15, 5.35, 7.18, P<0.01). The sensitivity rate and specificity rate were 77.8% and 82.2% of HCT, 73.3% and 80.6% of CDPI, 90.6% and 92.4% of HCT+CDPI in assessing the resectability of pancreatic cancer. The values of Kappa identity test of HCT, CDPI and HCT+CDPI were 0.58, 0.52 and 0.82, respectively. Conclusions Combined application of HCT and CDPI can further improve the accuracy in assessing the resectability of pancreatic cancer.     

太极扣和磁性附着体覆盖义齿修复下牙列缺失疗效比较

目的：比较太极扣覆盖义齿和磁性覆盖义齿的临床应用效果。方法：选择临床上下颌需要做覆盖义齿的患者作为研究对象,进行太极扣覆盖义齿和磁性覆盖义齿修复,比较患者的主观感觉、临床观察、固位力和咀嚼效率。结果：两种修复方法的固位力和咀嚼效率无显著性差异,90％的患者对两种义齿的美观、舒适、稳固、咀嚼功能均感到满意,但临床观察发现,两例磁性覆盖义齿基牙出现牙龈炎。结论：太极扣较磁性附着体更适于下颌令口覆盖义齿的修复.     

自体外周血造血干细胞移植治疗系统性红斑狼疮的临床观察

目的 观察自体外周血造血干细胞移植治疗系统性红斑狼疮(SLE)的临床疗效.方法 5例对其他治疗效果反应较差的复发SLE患者接受自体外周血造血干细胞移植术,造血干细胞动员方案采用环磷酰胺+粒细胞集落刺激因子,应用CS-3000 Plus血细胞分离机采集外周血干细胞,预处理方案采用环磷酰胺+抗胸腺球蛋白抗体方案,常规措施预防移植相关并发症.移植后3个月,复查各项免疫指标,评估疗效.结果 5例患者造血干细胞动员均获成功,造血重建顺利回输后外周血中性粒细胞计数≥0.5×109/L的天数为8～16 d;白细胞总数恢复正常的天数为10～20 d;血小板计数>20×109/L的天数为12～20 d.无一例出现严重的移植后并发症.临床症状明显改善或消失.3个月后复查各项指标均较移植前有明显改善.结论 自体外周血造血干细胞移植治疗SLE的临床疗效好,不良反应少,是治疗难治性SLE的一种较好的方法.     

血栓性血小板减少性紫癜13例临床分析

目的探讨血栓性血小板减少性紫癜（TTP）的病因、临床特点和治疗效果。方法回顾性分析1994年6月至2008年3月本院收治的13例TTP患者的临床资料,对其临床表现、实验室检查、治疗及转归进行统计分析。患者行血浆置换治疗,治疗间期行对症支持治疗。结果3例继发性TTP中2例死亡,1例治愈。10例原发性TTP中9例行血浆置换,8例治愈,2例死亡。病死率30．8％（4／13）。结论本组TTP中以原发性多见,多为急性起病,误诊率高,病死率高,早期诊断和及时的血浆置换治疗可明显改善预后,继发性TTP应注重病因治疗。     

罕见Schnelldorfer D型多囊肝合并多囊肾1例并文献复习

背景与目的 多囊肝（PLD）属一种罕见遗传性疾病,早期一般无特殊临床症状,随其病程进展可以导致肝肾功能衰竭。归纳PLD的病因、发病机制、临床特征,对指导PLD诊治有重要的临床参考价值。笔者报告1例Schnelldorfer D型PLD合并多囊肾（PKD）患者诊治过程,并结合文献对病例特点进行总结,以期加深对该病的认识。方法 回顾性分析川北医学院附属医院肝胆外科收治的1例PLD合并PKD患者的临床资料,总结PLD的病因、发病机制、临床特征,查阅国内外有关PLD的文献并加以整理分析。结果 患者为38岁女性,既往多次多胎妊娠史。磁共振成像（MRI）检查确诊为Schnelldorfer D型PLD合并PKD。目前认为囊肿形成原因是先天性胆管上皮过度扩增和分泌过多液体,女性、雌激素、多胎妊娠是该病进展的危险因素;计算机断层扫描（CT）和MRI影像学检查是PLD诊断和分型的主要手段;治疗方式有手术和药物治疗。患者诊断明确,因经济原因未住院继续治疗,予以保肝、对症处理。结论 PLD发病机制尚不明确,一般进展缓慢,大多数PLD患者早期无明显症状。女性、多次多胎妊娠及雌激素作用可能是其发生进展的重要危险因素。腹部彩超是首选检查方法,增强CT和增强MRI是进一步明确分型及鉴别诊断的检查方法。目前尚无相关权威指南或统一标准指导临床实践。笔者基于病例特征和文献报道总结的PLD诊疗流程可供临床医生日常工作参考,但其规范合理性有待进一步商榷。     

术中同种异体输血对肝癌患者手术预后的影响

目的探讨肝癌切除术中同种异体输血对患者预后的影响。方法我院2000年1月至2007年12月,共103个患者经历了肝癌切除术,分为术中输血组和未输血组,随访患者术后复发时间和生存时间,比较两组患者预后的差异。结果输血组1年、3年、5年生存率和无瘤生存率均低于未输血组,除1年生存率外,其余差异均有显著性(P<0.05)。输血组平均无瘤生存时间和平均术后总生存时间均明显短于未输血组(P<0.05)。结论肝癌术中同种异体输血缩短患者无瘤生存期,增加肝癌复发的机会。临床上肝癌手术中应严格掌握输血指征,尽量减少输血。     

彩色超声引导下腹腔双套管反复冲洗低负压引流治疗重症急性胰腺炎

重症急性胰腺炎(severe acute pancreatitis,SAP)是常见急腹症之一,具有起病急、进展快、死亡率高等特点。手术与非手术治疗仍是多年来学者们不断探讨的问题。总体来说,目前多数学者对手术持慎重态度。但较认可的是,在出现腹膜室膈综合征,胆源性SAP,胰周脓肿,胰腺坏死合并感染、腹腔脓肿形成等情况下,手术仍是必要的手段。由于开放手术创伤大,术后易     

学习曲线内胸乳入路腔镜甲状腺切除术的难点探讨

目的:分析探讨学习曲线内行胸乳入路腔镜甲状腺切除术的手术难点。方法:回顾分析为31例患者行经胸乳入路腔镜甲状腺切除术的临床资料,分析术中遇到的难点。结果:29例顺利完成腔镜手术,2例因术中冰冻病理检查示甲状腺癌而中转开放;1例术后皮肤瘀斑形成;3例因术中皮下空间层次过浅需调整层次;7例术后胸前区疼痛较重;1例术中钳夹甲状腺组织破碎而止血困难;3例术中寻找甲状腺肿瘤困难;术后1例声音嘶哑。结论:在学习曲线内行胸乳入路腔镜甲状腺切除术选择合适的病例,强调术中精细操作,可避免学习曲线内发生严重的手术并发症。