Association between cord blood IgE and genetic polymorphisms of interleukin-4, the β-subunit of the high-affinity receptor for IgE, lymphotoxin-α, and tumor Necrosis factor-α

High cord blood immunoglobulin E (cbIgE) is known to be associated with increased risks of atopic diseases in childhood. The relationship between genetic polymorphisms and high cbIgE has not been well documented. A cross-sectional study was conducted to assess the association between cbIgE and genetic polymorphisms of interleukin (IL)-4 -590C/T, the beta-subunit of the high-affinity receptor for IgE (FcepsilonRI-beta) E237G, lymphotoxin (LT)-alphaNcoI alleles, and tumor necrosis factor (TNF)-alpha -308G/A. A total of 320 mother-neonate pairs were recruited from four maternity hospitals from different locations of Taiwan. Cord blood was obtained and assayed for cbIgE. Polymerase chain reaction followed by restriction fragment length polymorphism was used to assess the genotypes. Three hundred pairs of mothers and neonates were included in the final analysis. Infants with IL-4 -590 C allele were found to have higher risk of elevated cbIgE (> or =0.35 IU/ml, 24.3%) (p = 0.004). After adjusting for gender, birth order, maternal age, and history of allergic disease in maternal and paternal families, odds ratios for CC and CT genotypes were 4.41 and 3.16 (95% confidence interval 0.78-22.67, and 1.66-6.13), respectively, using TT genotype as reference. The genotypes of FcepsilonRI-beta, LT-alpha, and TNF-alpha were not associated with cbIgE before or after the adjustment. Our finding suggested a significant association of cbIgE with genetic polymorphism of IL-4 -590C/T, but not with the genotypes of FcepsilonRI-beta, LT-alpha, and TNF-alpha.     

Surgical strategy of one stage surgery of anterior release combined with posterior correction in treatment of severe scoliosis

Objective: Severe scoliosis refers to scoliosis with serious and stiff curve. It always combins with trunk imbalance in coronal and sagittal contour. Besides complex pathological changes, cardiopulmonary deficits and other concomitant diseases increase treatmental difficulties. So the treatment of severe scoliosis is always a great challenge to spine surgeon. Methods :Thirty-six patients with severe scoliosis received one stage posterior correction followed by anterior release during July 1997 to January 2003, including 9 males and 27 females. Mean age was 17.2 years. Of them, 33 was idiopathic scoliosis and 3 was neurofibromatosis scoliosis( Cobb angle: 85-116 degree); 20 cases were abnormal in sagital plane. Three-dimensional devised instrumentation were applied such as CD, CD-Horizon, TSRH or Isola in posterior procedure followed by anterior release during the same anesthesia. 31 cases of this group received thorac icplasty. Results: The correction in the frontal plane achieved an average of 48.5%. In the sagittal plane, the pathological shape of the spine was reduced and distinctly ameliorated. 80. 6% of the patients maintained or achieved balance of sagittal plane. There were no complications of severe neurological deficit, hook displacement, rod broken, and deep infection at follow-up. One case occurred traumatic pleurisy after operation and another appeared pseudarthrosis 2 years later. One case demonstrated imbalance 11 months after operation. One patient was presented loss of correction more than 10 degree at one year follow-up and 5.2 degree in average. Conclusion:The study indicates that the one stage posterior correction combined with anterior release in treatment of severe scoliosis can achieve satisfactory correction. Appropriate choice of cases, preoperational detailed assessment and application of SEP and wake-up test during operation can possibly reduce severe complication. The long-term outcomes still need further observation.     

中药槐黄软膏治疗局部溃疡药效学实验研究

槐黄软膏是由槐角、地榆、黄芩、积壳、当归、防风等药物组成的治疗痔疮的良药,为了为临床用药提供实验依据,我们对槐黄软膏的体外抗菌活性及对局部溃疡的作用进行了实验研究,现报告如下。1材料与方法1.1药物槐黄软膏由山东中医药大学制备(批号:20020801),赋形剂为凡士林。马应龙麝香痔疮膏由武汉马应龙药业集团股份有限公司出品(批号:010832)。1.2动物家兔购于山东大学实验动物中心。1.3实验菌株金黄色葡萄球菌5株(010428,010416,010426,011223,011223)、铜绿假单孢菌5株(010408,010421,010423,010427,010430)、大肠杆菌5株(010411,010420,…     

在模型上应用Cerec Ⅲ制作全瓷冠

目的:应用间接法制作cerecⅢ全瓷冠,避免了直接法的缺点,使完成的修复体更为精确.方法:从2002年1月至2003年7月采用间接法制备cerecⅢ全瓷冠35个单位,对后牙采用功能法进行设计;对前牙采用数据库法进行设计.戴牙后1个月随访检测颈缘密贴性、牙周状况和与邻牙的邻接状况.结果:后牙采用功能法制备,在模型上调改较少,而前牙采用数据库法制备,在模型上调改较多.戴入患者口内1个月有一后牙病例破损.其它病例全瓷冠颈缘与基牙肩台密贴,与邻牙的邻接状况良好,牙周状况未见异常.结论:对于大多数CerecⅢ的初学者来说,应用间接法可利用较长的时间来反复制取光学印模,光学印模较直接法更准确.还可更为精细地进行修复体的设计并在模型上调改精修修复体.完成修复体后也会有较长时间来总结经验.     

自体表皮细胞培养与异体真皮组合应用研究

严重烧伤病人皮肤修复中主要未解决的问题是真皮的替代。动物实验结果表明，异体皮移植后５天，用自体培养表皮细胞膜片覆盖真皮床，１４天后复合皮成活率是８４．６％±２．４％。组织学检查证实表皮已形成了复层结构，可见基底层、颗粒层和角质层。临床应用中，异体皮移植后１０天，去除异体表皮覆盖病人的自体培养表皮，３５天后未见排斥征象，异体真皮促进了培养表皮的分层、成熟和完整，组织学检查证实表皮细胞的边缘清楚，已分化形成颗粒层和角质层，真皮多细胞，已血管化，但表皮嵴缺乏。     

酶组化显示睾丸LDH－X方法的再探讨

对小鼠睾丸冰冻切片ＬＤＨ－Ｘ的显示方法作了进一步探讨。实验表明，以Ｌ－２－羟基－３－甲基戊酸（ＨＭＶ）为特异性底物，能相当有效地显示睾丸ＬＤＨ－Ｘ的分布，且该底物的配制方法简便易行。在显示ＬＤＨ－Ｘ的孵育液中采用萘酚蓝（ＮＢ）作中间递电子体较吩嗪甲基硫酸酯更具优越性。     

蝮蛇抗栓酶与肝素抗凝治疗小儿肾病的疗效比较

本文对60例小儿肾病患儿随机分为3组,蝮蛇抗栓酶治疗组,肝素治疗组,常规治疗组(对照组),结果总有效率分别为95％,90％,60％。蝮蛇抗栓酶组与对照组比较,差异有极显著性(P<0.01),肝素组与对照组比较,差异有显著性(P<0.05)。结果提示抗凝治疗对小儿肾病高凝状态有明显改善作用,能增加临床疗效。蝮蛇抗栓酶抗凝效果优于肝素。     

IGF-Ⅰ及IGF-Ⅱ受体反义基因对SMMC-7721肝癌细胞株增殖能力的影响

目的；研究胰岛素样生长因子Ⅰ受体、Ⅱ受体（IGF－ⅠR，IGF－ⅡR）反义基因对SMMC－7721细胞体外增殖能力的影响。方法：应用反义技术，在已将IGF－ⅠR反义基因转染入SMMC－7721肝癌细胞株的基础上（获得ⅠR－AS细胞），继续利用IGF－ⅡR反义基因真核表达系统，通过DOTAP^TM脂质体介导的转技术，将IGF－ⅡR反义基因导入该细胞，经G418及潮霉素双重筛选获得稳定表达IGF－Ⅰ,IGF－ⅡR反义基因的SMMC－7721细胞（Ⅰ、ⅡR－AS细胞）。结果：光镜，电镜下反义转染细胞形态学上肿瘤性有一定减弱；在软琼脂培养基中生长能力低下（P＜0．01），反义G418抗性转染细胞克隆形成能力低下（P＜0．05）；在细胞生长曲线上与对照组相比有轻度下降趋势。结论：IGF－ⅠR，IGF－ⅡR反义基因对SMMC－7721肝癌细胞株的恶性增殖有明显抑制作用。     

脊髓损伤的MR表现

研究脊髓损伤的MR表现。采用GESigna0．5T超导型磁共振检查机，用脊柱表面线圈，对55例脊柱创伤病人做MR检查。所有病例做轮位和矢状位检查，用自旋回波序列和快速自旋回波序列。脊髓损伤表现为脊髓水肿23例次（41．8％），髓内出血10例次（18．1％），脊髓不完全性和完全性断裂7例次（12．7％），椎间盘值22例次（364％），脊柱韧带断裂30例次（545％）。脊髓损伤多见于爆裂型和骨折脱位型脊柱骨折。MR是脊髓损伤最有效的检查方法，MR对发现和评估脊髓损伤优于CT扫描。