Buccal mucosal graft for urethral reconstruction.

Urethral reconstruction with graft substances, such as skin and bladder mucosa, has been previously used when primary anastomosis cannot be achieved. However, stricture and meatal prolapse are associated with these grafts. We report the use of buccal mucosa for the reconstruction of urethral defects in 3 patients. One patient with failed operation for hypospadias received tube buccal mucosal graft for urethral replacement. Two patients with urethral necrosis and stricture received onlay buccal mucosal graft. All patients were disease-free during follow-up (range, 12 to 49 months; mean, 36 months). One patient had a pinhole fistula that was successfully managed with simple repair. This technique appears to be useful for urethral reconstruction when a local graft is not available, even in patients with complicated conditions.     

咳喘"冬病夏治"临床应用

"冬病夏治"法意即冬天易发作的病,在夏天(特指伏天)提前预防性治疗的一种特色疗法.寒性咳喘是我国北方冬季的常见病、多发病.我院针灸科从1983年开始,每年伏天运用针药并用外敷治疗寒性咳喘的"冬病夏治"法,治愈数千例患者,取得了很好的疗效.     

Evaluation of Class I ART restorations in Brazilian schoolchildren: three-year results

Atraumetic Restorative Treatment (ART) has been adopted around the world to avoid unnecessary extractions, especially in non-industrialized countries The development of specific glass ionomer cements marketed for the ART technique has contributed to the technical success rate. In this study. Ketac-Molar^a (3M ESPE. Dental Medzn Germany) was used to restore 150 Class I cavities in 118 Brazilian public school children, aged from 7–12 years. At baseline and at subsequent recalls. CPI probes with a ball-end of 0.5 millimeters (mm) were used to assess loss of restorative material, and photographic color transparencies of restorations were made. After six months. 83 patients returned for follow-up examinations, with 71.8% of their restorations designated as acceptable. After three years. 49 patients with 57 ART-restorations were evaluated, with 21.0% of these restorations graded as acceptable Another 29.8% of their restorations had been replaced by more permanent materials. The main objective of the ART technique is tooth retention; this was achieved for 94.7% of the restored teeth in a high caries risk population who returned for recalls.     

富氧对海拔3700m高原人体运动心力储备的影响

目的　探讨富氧对高原人体运动心力储备方面的影响。方法　对海拔 3 70 0m高原的 1 2名健康青年富氧 (氧浓度为 2 4%～ 2 5 %)前后分别进行踏阶运动 ,采用心力监护仪采集和记录心动周期和心力信息 ,把完成规定运动量运动后第一心音 (S1 )幅值对安静时S1 幅值增加的相应倍数评估心肌收缩能力储备指数 (CCRI) ;利用舒张期和收缩期时限数据计算舒张期 /收缩期比值 (D/S比 )。结果　运动后较安静时HR ,D/S ,S1 幅值均增高 ,有非常显著性差异 (P <0 .0 1 ) ;富氧运动较未富氧运动CCRI,D/S ,S1 幅值增高 ,有显著性差异 (P <0 .0 5 ) ,HR无统计学意义 (P >0 .0 5 )。结论　高原低氧环境下心脏储备主要是心肌收缩能力储备而不是心率储备。富氧对增强机体心力储备具有重要作用     

胶质细胞瘤复发前后Cyclin D1和P16的表达

目的　探讨CyclinD1,P16在胶质瘤复发前后表达改变及其意义。方法　采用免疫组织化学LsABC法对 4 5例复发胶质瘤瘤组织、瘤旁脑组织和 10例正常脑组织CyclinD1,P16蛋白表达进行检测 ,统计分析CyclinD1,P16表达水平与胶质瘤分级、肿瘤复发的关系。结果　正常脑组织 ,瘤旁脑组织和胶质瘤组织CyclinD1表达依次升高 ,而P16的表达依次下降 ;肿瘤复发CyclinD1表达增强 ,P16的表达减弱。结论　CyclinD1与P16的表达与胶质瘤恶性进程和复发密切相关。     

长沙市小学生焦虑障碍现状调查

目的　初步了解小学儿童焦虑障碍的患病现况。方法　使用焦虑性情绪障碍筛查表 (SCARED)调查长沙市某小学 2～ 6年级的 5 6 5名小学生 ,并对量表总分≥划界分 (2 3分 )的学生进行面谈。结果　在 5 6 5名小学生 (男生2 90名 ,女生 2 75名 )中 ,SCARED筛查阳性的有 14 0名 ,占总人数的 2 4 78%。使用中国精神障碍分类与诊断标准 (第三版 ) (CCMD 3)对筛查阳性者进行面谈 ,发现符合焦虑障碍诊断标准的 32例 (男 15 ,女 17) ,患病率为 5 6 6 % ,其中儿童分离性焦虑症 7例 ,患病率为 1 2 4 % ;儿童广泛焦虑症 11例 (1 95 % ) ;儿童恐惧症 10例 (1 77% ) ;儿童社交恐惧症 14例(2 4 8% ) ;有 8例存在 2～ 3种焦虑障碍共病 ;无 1例诊断为学校恐怖症、选择性缄默症和惊恐发作。结论　在儿童中焦虑情绪存在较普遍 ,这对儿童的学习、行为、自我意识造成不良影响 ,应予以积极干预。     

彩超引导介入治疗腘窝囊肿23例

目的探讨彩超引导下腘窝囊肿介入治疗的价值。方法在彩超引导下穿刺囊肿并抽尽囊液，生理盐水反复冲洗囊腔后注入无水乙醇，5min后抽出，反复2～3次。结果23例中22例穿刺一次治愈，1例穿刺2次治愈。23例随访6个月，无复发。结论彩超引导下介入治疗腘窝囊肿操作简便，创伤轻微，安全可靠，效果显著，可重复操作。     

40例形态学和免疫学分型不一致的急性白血病分析

选用一组国产敏感特异的McAb,采用APAAP桥联免疫酶标组化染色技术对40例形态学和免疫学分型不一致的急性白血病进行了分析。结果表明,32例形态学难以分类或虽能分类但与免疫学分型不同的急性白血病均有明确的细胞系列特异性标记表达。其中B-ALL14例、T-ALL1例、ANLL2例、同时表达T和B系相关分化抗原的双标-ALL 11例、HAL4例,同时表达淋巴和髓系相关的特异性标记。有8例未测到任何标记抗原,归属于急性未分化型白血病。     

人抵抗素基因cDNA的克隆

目的克隆人抵抗素基因(hRETN)cDNA,为进一步研究RETN的结构和功能提供实验基础.方法应用RT-PCR方法从中国人网膜脂肪垫总RNA中扩增出RETN 基因cDNA,克隆入载体pMD18-T中,形成重组载体pMD18-T/hRETN.通过蓝白斑筛选出阳性克隆,限制性内切酶酶切鉴定后对其进行测序.结果从脂肪组织总RNA中扩增得到363 bp片段hRETN基因,其cDNA序列与Genbank hRETN基因序列基本相同.结论成功地克隆中国人hRETN cDNA.     

慢性肝病蛋白C系统的变化及临床意义

目的：探讨血浆血栓调节蛋白（TM）、蛋白C（PC）和蛋白S（PS）与慢性肝病的关系。方法：用双抗体夹心ELISA法测定了136例慢性乙型肝炎和74例肝炎肝硬化患者血浆TM、PC和PS水平，并与35名正常者进行对照分析。结果：（1）慢性乙型肝炎及肝炎肝硬化患者血浆TM水平均显著增高。（2）慢性乙型肝炎及肝炎肝硬化患者血浆PC、PS水平均显著降低，并与病情严重程度呈显著负相关。结论：慢性乙型肝炎及肝炎肝硬化患者均存在肝窦内皮细胞损伤，且与凝血机制异常有关；检测血浆PC和PS可做为判断慢性肝病病情严重程度的指标。