Clinical significance and assessment of cytokines in various stages of ulcerative colitis

Summary In order to study the clinical significance and change of interleukin (IL)-1β and IL-10 concentration in intestinal mucosal tissues in various stage of ulcerative colitis (UC), IL-1β and IL10 levels were measured by enzyme linked immunosorbent assays (ELISA). Our results showed that IL-β level caused by spontaneous secretion in the intestinal mucous tissues in active stage of ulcerative colitis was significantly higher than that in normal controls and in remission stage of ulcerative colitis (P <0. 01,P<0. 001). IL-10 level in various stage of UC was relatively lower in controls, but there was no significantly difference between the two groups. Our study suggested that higher IL-1β level in active might play an important role in pathogenesis of UC, and IL-10, as an anti-inflammatory cytokine, was low in active UC, suggesting that it may be a important factor contributing to the development of higher IL-1β level. This project was supported by the grant of the Scientific Research Fund of the Ministry of Health (No. 98-2-387).     

Osteogenic potential of cultured bone marrow stromal cells transfected with transforming growth factor β1 genein vitro

Summary To study the osteogenic potential of cultured bone marrow stromal cells (BMSCs) transfected with transforming growth factor β₁ (TGF-β₁) genein vitro, cultured BMSCs were transfected with the complexes of pcDNA₃-TGF-β₁ and Lipofectamine Reagentin vitro. The cell proliferation was detected by MTT method and the morphological features of transfected BMSCs was observed. ALP stains and PNP method were used to measure ALP activity. In addition, the collagen type I propeptides and mineralized matrixes were examined by immunohistochemical staining and tetracycline fluorescence labeling respectively. The morphological and biological characters of the transfected BMSCs were similar to those of osteoblasts and the cell proliferation was promoted. The cell layer displayed strong positive reaction for ALP stains and immunohistochemical staining. ALP activity and collagen type I expression increased remarkably after transfection. Mineralized matrixes formed earlier and more in transfected BMSCs as compared with control group. It is concluded that transfecting with TGF-β₁ gene could promote the osteogenic potential of cultured BMSCs.     

Analysis of the factors influencing the therapeutic effects of onychomycosis

From July 1 994to June 1 999,5 4 5 onychomyco-sis patients were treated with Itraconazole and com-pleted their treatment courses with complete follow-up in out- patientdepartment.The recovery rate was83.1 4% and 79.2 3% in fingernail and toenail dis-eases respectively.But following phenomena werefound:( 1 ) Some new nails stopped growing in cer-tain length,even if the treatment continued;( 2 )Some damaged nails reappeared soon after the treat-ment ceased;( 3) Some damaged nails with deep- co…     

意外跌落伤住院儿童转归的影响因素分析

为探讨影响意外跌落伤住院儿童转归的有关因素,提高患儿的住院治疗质量,促进医院建立有效的院内医疗系统,利用多项有序分类反应变量的逐步Logistic回归对3035例0～14岁意外跌落伤住院患儿的转归进行影响因素分析.发现影响转归的因素有住院时间、确诊时间、院前时间、病情程度、受伤部位、并发症、生活环境、手术及术前住院天数、住院费用.结果表明医院要正确处理缩短住院时间与提高治疗效果之间的关系,并通过缩短院前时间、及时确诊、降低并发症、控制病情、降低住院费用、尽量减少术前住院天数,强化和贯彻整体医疗观念等综合措施即可有效地提高意外跌落伤住院儿童的治疗效果.     

血管紧张素Ⅱ上调BaX表达诱导人内皮细胞凋亡

为了研究血管紧张素Ⅱ(AngⅡ)诱导凋亡的机制,将人脐静脉内皮细胞培养至第3代,用不同浓度Ang Ⅱ培养不同时间,用TUNEL检测细胞凋亡.Bax和Bcl-2蛋白表达用Western Blot和图像分析法测定.结果发现Ang Ⅱ组的凋亡阳性率极显著高于对照组;Bax的表达极显著地升高且具有时间和剂量依赖性,Bcl-2无显著变化,Bax/Bcl-2比值极显著地增加.提示AngⅡ通过诱导Bax的高表达,致Bax/Bcl-2比值极显著地增加而诱发凋亡.     

四川省居民生命质量影响因素的研究

目的 找出影响生命质量的主要因素,为增进人群的生命质量提供参考依据。方法 用SF－36量表评价2249名四川居民的生命质量,同时调查可能影响生命质量的社会经济、文化因素、以及被调查对象的个人特征和慢性病情况。用t检验,方差分析和逐步回归对每一种影响因素分别分析,找出主要影响因素。结果 单因素分析时,是否患慢性病、年龄和性别、文化程度、婚姻状况、职业、经济收入、家庭人口及家庭代数、城乡分布、医疗费用负担形式等11种因素与生命质量的各领域或大多数领域均有关系。但进一步的多因素分析,在排除了各因素之间的相互影响后发现,对生命质量的主要影响因素是疾病、经济收入、城乡分布、年龄和文化程度,婚姻对个别领域有影响。结论 注意慢性病的预防与控制,积极发展经济,提高人民的收入水平和文化教育程度是提高人群生命质量的关键;分城乡和年龄制定SF－36的人群正常参数值很有必要,是否分性别制定尚需进一步研究。     

用SF—36量表评价慢性病患者的生命质量

目的 用SF－36量表分析慢性疾病对生命质量的影响。方法 在四川省某城乡用SP－36量表对438名慢性疾病患者进行调查,并按照ICD－8进行疾病分类,对不同系统疾病患者的生命质量进行分析。结果 不同系统疾病患者的生命质量在SF－36量表所测的不同领域均低于一般人群（≥40岁）,不同系统疾病患者在躯体活动性能、社会功能、活力和心理功能四个领域均有差别。影响生命质量的主要疾病有精神疾患、血液及造血器官疾病,传染病和寄生虫病。结论 慢性病降低了患者的生命质量。不同系统疾病对生命质量的影响程度不同,SF－36量表适用于评价慢性病患者的生命质量。在慢性疾病的预防控制中,生命质量应作为健康评价指标。     

乙肝基因疫苗系列质粒的构建及其在真核细胞中的表达

目的 构建一系列乙肝病毒表面抗原大、中、小蛋白的真核细胞表达质粒,并研究其在真核细胞中的表达情况。方法 采用常规PCR法扩增S、前S2－S、前S1－前S2－S片断,利用重叠PCR法扩增出前S1－S片断后,分别插入Rc/CMV及pSG5UTPL/Flag载体质粒中,并在其ATG起始密码前加入KOZAK序列后转染SP2／0细胞,Western-Blot杂交检测所表达蛋白,并用核酸自动分析仪分析所插入片断的核酸序列。结果 插入片断的核苷酸序列与相应的大、中、小蛋白和前S1－S蛋白的编码基因一致,Western-Blot杂交检测出了相应的目的蛋白。结论 获得了8个能高效表达乙肝病毒表面抗原大、中、小蛋白和前S1－S蛋白的真核细胞表达质粒。     

介入疗法在妇科恶性肿瘤治疗中的价值初探

目的 探讨介入疗法在妇科恶性肿瘤治疗中的价值。方法 选择我院1997年9月至1998年6月经病理证实的晚期妇科恶性肿瘤患者24例,采用Seldinegr法选择性地行髂内动脉化疗药物灌注,在注药后不同时间取活组织行病理观察,并于介入治疗后2周用B超检测肿瘤大小。结果 灌注药物前盆腔动脉造影显示,全组患者的子宫动脉增粗、扭曲,可见肿瘤新生血管和肿瘤染色现象,部分病例还可见肿瘤血管湖,动静脉交通等影像。注药后24小时病理组织不观察见肿瘤细胞呈片状坏死,72小时坏死更为彻底。灌注化疗后完全缓解2例。部分缓解19例,无缓解2例,无效1例。化疗副作用轻,化疗后2周内白细胞恢复政治完1例并发症发生。结论 （1）盆腔动脉造影对于观察疗效和了解病变范围具有重要的指导意义。（2）化疗后肿瘤缩小,为手术切除创造了条件,在灌注化疖周后手术较为时宜;对化疗后部分不能手术的患者。病灶缩小也更有利于放疗。（3）介入疗法具有操作方法简单、疗效佳、并发症及副作用少等优点,是挽救病人生命的积极有效措施之一。     

超声多指标预测临产胎儿体重

OBJECTIVE: To evaluate the ultrasonic measurements of parturient fetal cerebellar diameter (CD), liver length(LL), kidney length (KL) and femur thigh soft tissue thickness(FSTT) for the estimation of fetal weight. METHODS: Ultrasonic measurements of the parturient fetal cerebellar diameter, liver length, kidney length and femur thigh soft tissue thickness were made in 115 cases. The data on these parameters were analyzed with statistical methods, and a multiple linear regressional equation for predicting the fetal body weight was derived. The calculated value of fetal body weight and the estimated parameters of the fetal body were compared with the actually measured values immediately after birth. The error of estimation was analyzed. RESULTS: CD, LL, KL and FSTT were significantly correlated with neonatal birth weight, the coefficient of multiple correlation R = 0.9425 (P < 0.001); among the 115 cases, 101 had absolute error less than +/- 200 g, with an agreement rate of 88%. The sensitivity and accuracy for detection of normal fetus were 98.13% and 94.78% respectively. The multiple linear regression equation derived was BW = -1009.914 + 356.1303FSTT + 354.0682KL + 236.8484 LL + 179.7384 CD. CONCLUSION: The equation is a simple, accurate and valuable equation for the estimation of fetal weight and can be used in clinical practice.