The Effect of Sheng Bai Solution on Irradiated Mice Bone Marrow Cell Division Index and DNA Content

Before and after general irradiation with ~(60)Co-γ, mice were orally given Sheng Bai Solution (SBS) for one week. SBS alleviated the irradiation-induced reduction of bone marrow cell chromosome division index. The irradiationinduced decrease of marrow DNA amount, thymic and splenic fractions, and total leukocyte number were restored to some extent. SBS also helped to ameliorate general condition of patients.     

成都地区五种家禽、家畜军团病菌的血清学调查

用微量凝集试验对成都地区兔、猪、鸡、鸭及鹅作嗜肺军团病菌(Lp)的血清学调查。结果除兔的Lp3型抗体未检出阳性外,其它各型的阳性率为1.27～89.8％,猪的Lp6型抗体阳性率高达89.8％,高于美国、丹麦和我国南京的报道。提示家禽、家畜中可能发生军团病菌感染;对动物和外环境进行军团病的流行病学监测,对于防止人患军团病具有一定的意义。     

药学专业构建多学科交叉性实验的探索

实现多学科的交叉渗透,已成为高等教育研究的新课题,也是培养能适应新世纪发展急需的高层次和创新性复合型人才的希望所在。在药学专业的本科生中开展多学科交叉实验,通过查阅文献、设计实验、独立完成实验、撰写实验论文等教学环节,探索药理学多学科交叉性实验的实施,并对这一教学实践进行分析和思考。     

1例重症Goodpasture病的诊治

作者报道了１例重症Ｇｏｏｄｐａｓｔｕｒｅ病患者。患者入院时血肌酐近１３００μｍｏｌ／Ｌ，肾活检发现新月体占肾小球总数的９１．７％。经过双重血浆滤过、甲基强的松龙和环磷酚胺冲击等强化、综合治疗，患者肺出血停止，血清抗肾小球基底膜抗体转阴，但肾功能及重复肾活检病理均无改善。     

实行预约挂号状况分析

目的分析门诊挂号现状,提高预约挂号比例,解决老百姓＂挂号难＂的问题。方法通过现有门诊挂号的三种模式,开展调查,对统计数据进行对比分析。结果窗口挂号仍然是患者多年养成的就医习惯占99.42%;电话预约挂号占0.24%;网络预约挂号约占0.34%。结论改变患者多年养成的就医习惯,需要引导患者转变就医挂号观念,疏导患者就医挂号合理性,医院加大宣传力度,探索有效的预约挂号方法,提高预约挂号比例,减轻挂号窗口压力,缩短患者就诊时间,控制和减少院内交叉感染,真正解决＂挂号难＂的问题,提高预约挂号率。     

Study on the Design,Preparation, and Performance Evaluation of Heat-Resistant Interlayer-Polyimide-Resin-Based Neutron-Shielding Materials

Polymers have an excellent effect in terms of moderating fast neutrons with rich hydrogen and carbon, which plays an indispensable role in shielding devices. As the shielding of neutrons is typically accompanied by the generation of γ-rays, shielding materials are developed from monomers to multi-component composites, multi-layer structures, and even complex structures. In this paper, based on the typical multilayer structure, the integrated design of the shield component structure and the preparation and performance evaluation of the materials is carried out based on the design sample of the heat-resistant lightweight polymer-based interlayer. Through calculation, the component structure of the polymer-based materials and the three-layer thickness of the shield are obtained. The mass fraction of boron carbide accounts for 11% of the polymer-based material. Since the polymer-based material is the weak link of heat resistance of the multilayer shield, in terms of material selection and modification, the B₄C/TiO₂/polyimide molded plate was prepared by the hot-pressing method, and characterization analysis was conducted for its structure and properties. The results show that the ball milling method can mix the materials well and realize the uniform dispersion of B₄C and TiO₂ in the polyimide matrices. Boron carbide particles are evenly distributed in the material. Except for Ti, the other elemental content of the selected areas for mapping is in good agreement with the theoretical values of the elemental content of the system. The prepared B₄C/TiO₂/polyimide molded plate presents excellent thermal properties, and its glass transition temperature and initial thermal decomposition temperature are as high as 363.6 °C and 572.8 °C, respectively. In addition, the molded plate has good toughness performs well in compression resistance, shock resistance, and thermal aging resistance, which allows it to be used for a long time under 300 °C. Finally, the prepared materials are tested experimentally on an americium beryllium neutron source. The experimental results match the simulation results well.     

脊柱侧凸患者的肺功能评价

对１０５例脊柱侧凸患者的肺功能进行检测和分析。结果表明，脊柱侧凸可引起限制型的肺通气功能障碍，肺功能减退与畸形的严重程度呈显著负相关；上胸段曲度对肺功能影响最大，下胸段曲度次之，腰段曲度影响甚微；侧凸类型对肺功能影响不明显。     

Correlation of oxygen free radical items between blood and kidney of chronic renal failure rat

Ｃｏｒｒｅｌａｔｉｏｎｏｆｏｘｙｇｅｎｆｒｅｅｒａｄｉｃａｌｉｔｅｍｓｂｅｔｗｅｅｎｂｌｏｏｄａｎｄｋｉｄｎｅｙｏｆｃｈｒｏｎｉｃｒｅｎａｌｆａｉｌｕｒｅｒａｔ￥ＹｕａｎＦａｈｕａｎ（袁发焕）；ＬｉａｏＬｉｓｈｅｎｇ（廖立生）（Ｄｅｐａｒｔｍｅｎｔｏ...     

Protective effect of glutamine-enriched early enteral nutrition on intestinal mucosal barrier injury after liver transplantation in rats

Background

The effect of glutamine-enriched early enteral nutrition (Gln-EEN) on intestinal mucosal barrier injury after liver transplantation (LT) remains uncertain.

Methods

The Wistar-to-Wistar rat LT model was used to explore the protective effect of Gln-EEN. Morphologic changes of intestinal mucosa, levels of intestinal malondialdehyde and secretory immunoglobulin (sIgA), plasma endotoxin, D-lactic acid, serum tumor necrosis factor-α (TNF-α), rates of bacterial translocation, and expression of intestinal nuclear factor-κB, TNF-α, and intercellular adhesion molecule-1 were determined.

Results

After LT, intestinal mucosa was damaged seriously. At 12, 24, and 48 hours posttransplantation, levels of intestinal sIgA were decreased; levels of malondialdehyde, endotoxin, D-lactic acid, and TNF-α, the ratio of bacterial translocation, and the expression of intestinal nuclear factor-κB, TNF-α, and intercellular adhesion molecule-1 all were increased. However, changes in earlier-mentioned parameters in recipients treated with Gln-EEN were attenuated remarkably at 24 to 48 hours.

Conclusions

Our data show that Gln-EEN is a potent protectant against intestinal mucosal barrier injury after LT.     

Oral uracil‐tegafur plus leucovorin vs fluorouracil bolus plus leucovorin for advanced colorectal cancer: a meta‐analysis of five randomized controlled trials

Aim The aim of this study was to evaluate systematically the efficacy and safety of oral uracil‐tegafur (UFT) plus leucovorin (LV) compared with infusional fluorouracil (5‐FU) plus LV for advanced colorectal cancer. Method Eligible studies were identified from Medline, Embase and the Cochrane Library. The end‐points included overall survival and overall tumour response rate, and toxicity including leucopenia, febrile neutropenia, stomatitis/mucositis and diarrhoea. Results Five randomized controlled trials were identified. Pooled data demonstrated no difference in overall survival between the oral UFT plus LV regimen and the 5‐FU bolus plus LV regimen [hazard ratio 1.013; 95% confidence interval (CI) 0.911–1.127].The fixed‐effect pooled estimate for overall tumour response rate showed no significant difference between the two regimens (relative risk 0.893; 0.672–1.187). Grade 3–4 leucopenia [odds ratio (OR) 0.126; 955 CI 0.048–0.326], grade 1–4 leucopenia (OR 0.089; 95% CI 0.067–0.119) and grade1–4 febrile neutropenia (OR 0.020; 95% CI 0.004–0.102) were significantly less prominent in the oral UFT regimens. For nonhaematological toxicities, grade 3–4 stomatitis/mucositis (OR 0.075; 95% CI 0.039–0.146), grade 3–4 infection (OR 0.484; 95% CI 0.310–0.758), grade 1–4 infection (OR 0.672; 95% CI 0.547–0.826, P < 0.001), grade 1–4 diarrhoea (OR 0.743; 95% CI 0.626–0.881) were also less likely to happen in patients in the oral UFT plus LV regimen, while there was no significant difference between the two treatment regimens with respect to grade 1–4 stomatitis/mucositis (OR 0.278; 95% CI 0.053–1.456) and grade 3–4 (OR 1.174; 95% CI 0.983–1.403) diarrhoea. Conclusion Oral UFT or 5‐FU bolus combined with LV results in similar overall survival and tumour response rates for advanced colorectal cancer. The former treatment regimen is greatly superior in terms of toxicity, especially haematological toxicity.