经输尿管镜钬激光碎石治疗输尿管结石

目的探讨经输尿管镜钬激光碎石治疗输尿管结石的临床效果. 方法 90例输尿管结石,经尿道、膀胱置入10°输尿管镜抵达结石处,将光纤头直抵结石,设置工作能量0.8～1.5 J,频率8～10 Hz,采用连续脉冲方式粉碎结石. 结果3例进镜失败(输尿管镜无法到达结石部位)改开放手术,1例输尿管穿孔改开放手术;86例碎石成功,单次钬激光碎石成功率为95.6%(86/90).手术时间30～80 min,平均55 min.术后住院1～5 d,平均2.5 d.86例随访1～3个月,69例病程＜6个月、肾积水＜4 cm,肾积水完全消失;17例病程＞6个月、肾积水＞4 cm,术后患肾均有不同程度积水,但较术前明显改善. 结论经输尿管镜钬激光碎石治疗输尿管结石效果理想,创伤小,并发症少,可作为输尿管中、下段结石的首选治疗方法.     

腹茧症的影像诊断

目的探讨腹茧症的影像特点，提高术前诊断水平。方法回顾性分析经手术病理证实的腹茧症6例，术前均进行立位腹部X线平片和腹部CT检查，4例同时行胃肠道钡剂造影，复习其影像表现。结果6例立位腹部X线平片中3例诊断为肠梗阻。4例胃肠道钡剂造影，均可见小肠交错盘绕成团，呈“菜花”状或“手风琴”状表现。6例CT检查，均可见小肠聚集成团，其周围可见膜样的囊状物将其包裹。结论对患者进行胃肠道造影时观察到“菜花”状征象，或CT检查时观察到小肠聚集成团被一层膜样物包裹，应考虑到腹茧症的可能。     

腓肠神经内侧头肌支切断术瘦小腿

目的探讨一种以腓肠神经内侧头肌支切断来改善小腿外形的新方法。方法在腘窝处切开,暴露腓肠神经内侧头肌支,并切断,使局部肌肉失神经萎缩,而缩小小腿的容积。结果本组4例,术后小腿周径平均缩小3.6±0.8cm,小腿外形满意。结论本方法为一简单、安全而有效的技术,能达到缩小小腿部的目的。     

Toxic effects of Fusarium mycotoxin butenolide on rat myocardium and primary culture of cardiac myocytes.

Mycotoxin toxicosis has been implicated in the etiopathogenesis of Keshan disease (KD), an endemic cardiomyopathy prevailing in some regions of China. Butenolide (4-acetamido-4-hydroxy-2-butenoic acid gamma-lactone, CAS No. 16275-44-8), a mycotoxin produced by several Fusarium species such as Fusarium tricinctum and Fusarium graminearum, is frequently detected from the cereals in the endemic areas of KD. The present study is undertaken to investigate whether this mycotoxin can induce myocardial damage. Exposure of primary culture of cardiac myocytes to butenolide resulted in significant cytotoxicity, manifested by changes in cell morphology and decreases in cell viability. Consistent with the in vitro findings, distinct myocardial toxicity in vivo was observed after administration of rats by gavage with butenolide (10 and 20 mg/kg/day) for 2 months, and the myocardial injuries were characterized by focal necrosis of myocardium and fragmentation of myofiber. Butenolide also induced significant oxidative damage to the myocardium in vitro evidenced by a concentration-dependent lipid peroxidation in the myocardial homogenates, whereas antioxidants superoxide dismutase (SOD), N-acetylcysteine (NAC) and glutathione (GSH) provided significant protections against this oxidative effect. Taken together, these results clearly reveal that butenolide possesses the potential to induce myocardial toxicity. The present findings may reinforce the hypothesis that toxicosis by mycotoxins is one of the etiological factors for KD.     

福安市恶性肿瘤死亡率10年变化趋势分析

本文通过对福安市恶性肿瘤死亡率10年变化情况进行比较分析,探索该市恶性肿瘤的流行趋势,为恶性肿瘤的病因学研究及制定卫生防治规划提供参考.     

Expression, purification and molecular modeling of recombinant fibrinogenase [IV], a metalloproteinase from Deinakistrodon acutus venom.

A novel metalloproteinase, recombinant fibrinogenase IV (rFIV(a)), was expressed and purified from Deinakistrodon acutus venom. It was a single chain protein with an apparent molecular weight 27 kDa and an isoeletric point of pH 7.1. RFIV(a) cleaved preferentially the Aalpha-chain and also cleaved Bbeta, gamma-chains of fibrinogen when the incubation time was prolonged. The proteolytic activity was inhibited by EDTA, l-cysteine, and DTT, indicating rFIV(a) was a metalloproteinase requiring disulfide bonds for its activity. It kept above 85% of the initial activity from pH 4.5-11, showed an equal maximum activity at the temperature range from 30 to 50 degrees C, and was inactivated by Zn2+, Cu2+ and Cd2+. Homology modeling of rFIV(a) showed that two highly conserved disulfide bonds (Cys159-Cys164 and Cys117-Cys197) was maintained from its structure, and it exhibited the characteristic conserved motif H142E143XXH146XXGXXH152, whose three histidine residues were involved in binding of the catalytically essential zinc ion. This work demonstrates the expression, purification and characterization of recombinant fibrinogenase IV, which belongs to class P-I metalloproteinase from D. acutus venom.     

抗地高辛人源小分子抗体的获取

目的 从大容量噬菌体抗体库中筛选人源性抗地高辛抗体,并构建双体抗体.方法 以固相化的地高辛对构建的大容量噬菌体抗体库进行筛选,3～4轮后挑取克隆用酶联免疫吸附测定方法鉴定其特异性,对抗地高辛阳性抗体克隆进行DNA指纹分析及测序分析.选取活性好的克隆进行改造,构建双体抗体.结果 在抗体库的筛选过程中可见到明显的富集现象,获得了4株可与地高辛特异性结合的人源抗体,经DNA指纹分析及测序分析证明为不同克隆基因,阳性克隆的可变区基因轻链均属于λ第一亚群,重链分别属于第三和第四亚群.选取4号克隆进行基因改造,构建双体抗体表达载体,获得了活性较好的双体抗体.结论 利用噬菌体抗体技术获得了人源性抗地高辛抗体,并改造成应用前景较好的双体抗体,可能为临床诊断及治疗洋地黄类药物中毒提供具有实用价值的人源抗体.     

多序岩黄芪化学成分研究（Ⅳ）

目的研究多序岩黄芪(Hedysarum polybotrysHand.-M azz.)的化学成分。方法用柱色谱分离,用理化性质及波谱方法鉴定结构。结果从多序岩黄芪中分离鉴定了3个化合物:(1)白桦脂酸,(2)二十六碳酸,(3)蔗糖。结论化合物1和2为首次从该植物中分离得到。     

Clinical Application of Movement-needling Technique： Elbow and Wrist Sprains

Elbow Strain 1. Acupoints Primary acupoints: Quchi(LI 11), Zhouliao(LI 12), Shousanli(LI 10) and Ashi point.     

去带盲升结肠可控膀胱术后远期并发症(附105例报告)

目的 探讨去带盲升结肠可控膀胱术后远期并发症的发生及防治.方法 回顾性分析1995年10月至2003年1月105例去带盲升结肠可控膀胱术后患者资料.男83例,女22例.年龄32～78岁,平均60岁.随访时间9～82个月,平均40.5个月.结果 发生远期并发症27例（25.7%）,其中导尿插管困难4例（3.8%）,3例行尿道扩张后治愈,1例再次手术利用末段回肠重建输出道;贮尿囊结石5例（4.8%）,4例行贮尿囊切开取石治愈,1例无自觉症状者未行处理;贮尿囊穿孔1例（0.9%）,行手术修补后痊愈;贮尿囊过度扩张1例（0.9%）,行贮尿囊缩小术;肾积水8例（7.6%）,合并输尿管返流1例,合并下段输尿管狭窄4例,其中2例行狭窄段输尿管切除再吻合,1例术前为氮质血症者发展为尿毒症需行规律血透;血氯增高7例（6.7%）,1例出现高氯性酸中毒需长期口服碳酸氢钠;单纯表现为症状性泌尿系感染1例（0.9%）.27例中另合并症状性泌尿系感染10例,根据尿培养结果予敏感抗生素治愈.结论 去带盲升结肠可控膀胱术后远期并发症多与症状性泌尿系感染相关,积极防治泌尿系感染,规律、充分的贮尿囊冲洗及定时清洁导尿对远期并发症的预防有重要作用.