红景天素抗肿瘤作用的研究

本研究通过体外培养５种人癌细胞（肝癌、胃癌、肺癌、Ｈｅｌａ细胞和咽癌）和小鼠移植性肿瘤实验，证明了红景天素可明显抑制３种癌细胞的生长增殖，可提高荷瘤小鼠的存活率，延长其生存期，抑瘤率在５０％以上。结果提示红景天素对体外培养３种癌细胞和小鼠Ｓ１８０。细胞均有一定的抑制作用。     

地高辛素标记的DNA探针快速鉴定产不耐热肠毒素大肠杆菌的研究

用地高辛素标记的６７０ｂＰ－ＬＴ－ＤＮＡ片段作为探针，用菌落原位杂交法对９株标准参考株进行检测，结果全部相符。对７０株从临床分离的菌株也进行菌落原位杂交．并与３２－Ｐ标记的探针进行比较．结果地高辛素探针的特异性为９７．７％，敏感性为１００％，符合率为９８．６％。从含正常肠道菌的粪便中可以直接检出ＬＴ－ＥＴＥＣ而无须经纯培养。定量试验表明本法最低检出量为６ＣｆｕＬＴ－ＥＴＥＣ／斑点。整个检测过程短．仅须２４～３０ｈ。探针的稳定性好，有效期可长达１年。     

中国食管癌高发区食管原发性腺癌组织病理学研究Ⅰ．食管原发性腺癌的临床病理学分析

中国食管癌高发区河南省近１５年（１９８０～１９９４）病理确诊的７３６４例食管癌中，其中食管原发性腺癌（ＰＥＡ）２３９例，占３．２５％。通过对２３９例ＰＥＡ手术标本（包括早期癌２０例，其余为中、晚期癌）切片系统观察，指出中国食管癌高发区ＰＥＡ主要起源于食管固有腺体的各级导管部分。ＰＥＡ的病理组织学可分６型：腺导管癌（１０９例）、腺鳞癌（５４例）、腺样囊性癌（２９例）、粘液表皮样癌（２０例）、基底细胞样癌（１５例）、胃型腺癌（１２例）。每型的组织图象及预后均各有特点，提示ＰＥＡ组织学再分型有意义。     

颅脑损伤患者伤后细胞免疫功能变化及黄芪的免疫调节作用

目的：研究颅脑损伤患者伤后细胞免疫功能的变化规律及黄芪对细胞免疫功能的调节作用。方法：73例中、重型颅脑损伤患者随机分为常规治疗组35例和黄芪治疗组38例。对照组10例。采用放射免疫法．双抗体夹心酶联免疫吸附法及碱性磷酸酶法于不同时间检测各组患者细胞免疫学指标，1个月后进行疗效评价，并进行统计学处理。结果：颅脑损伤患者伤后1d IL-2、CD4、CD4／CD8显著下降，SIL-2R及CD8显著升高(P＜0．01)。伤后第30天常规组与黄芪组比较IL-2，SIL-2R，CD8、CD4／CD8有显著性差异，CD4无显著性差异。伤后1月两组患者感染发生率、GCS评分、日常生活能力比较有显著性差异(P＜0．01)。结论：中、重型颅脑损伤息者伤后存在显著的细胞免疫功能抑制，黄芪可以改善患者细胞免疫功能状态，提高机体抗感染能力．改善预后。     

阻塞性黄疸:PTC下胆管钳夹活检的技术方法学研究

目的探索切实可行的胆管病理学检查新途径.资料与方法连续92例阻塞性黄疸患者接受经皮肝穿刺胆管造影(PTC)和经皮肝穿胆管引流(PTCD)治疗.PTCD过程中,影像监测下经皮经肝胆管穿刺,向胆管内引入活检钳对梗阻段钳夹活检,行组织病理学检查.统计学分析用χ2检验或Fisher确切概率计算法,以α=0.05作为检验水准.结果 92例钳夹活检患者90例成功获得组织块,技术成功率97.83%(90/92).钳夹活检敏感性为88.04%,63例胆管癌性恶性肿瘤钳夹活检敏感性较25例非胆管癌性恶性肿瘤高(93.65%比72.00%,P＜0.05).结论PTC下胆管钳夹活检操作简单,创伤小,敏感性高,是一种值得推广的胆管病理学诊断新途径.     

Development of quality of care indicators for Parkinson's disease.

Parkinson's disease (PD) is a major cause of disability. To date, there have been no large-scale efforts to measure the quality of PD care because of a lack of quality indicators for conducting an explicit review of PD care processes. We present a set of quality indicators for PD care. Based on a structured review of the medical literature, 79 potential indicators were drafted. Through a two-round modified Delphi process, an expert panel of seven movement disorders specialists rated each indicator on criteria of validity, feasibility, impact on outcomes, room for improvement, and overall utility. Seventy-one quality indicators met validity and feasibility thresholds. Applying thresholds for impact on outcomes, room for improvement, and overall utility, a subset of 29 indicators was identified, spanning dopaminergic therapy, assessment of functional status, assessment and treatment of depression, coordination of care, and medication use. Multivariable analysis showed that overall utility ratings were driven by validity and impact on outcomes (P < 0.01). An expert panel can reach consensus on a set of highly rated quality indicators for PD care, which can be used to assess quality of PD care and guide the design of quality improvement projects.     

高血压患者左室舒张功能与左室肥厚的关系及随龄改变

为探讨原发性高血压 (以下简称高血压 )患者的左室舒张功能和左室肥厚的关系及其随龄改变 ,抽取 1995年 2月至 2 0 0 2年 7月间门诊高血压患者 4 81例为高血压组 ,以同期体检健康者 2 54 3例为对照组 ,年龄 10～ 80岁 ,并将原发性高血压患者分为 3级 ,每级中按性别分 2组。采用惠普 2 50 0彩色多普勒超声诊断系统检测 2组的室间隔厚度、左室后壁厚度、E/A等指标。使用SPSS软件进行统计学处理分析。结果 :高血压和正常对照组相比E/A显著下降 ,室间隔和左室后壁显著增厚 (P <0 .0 1)。 2个组的E/A均随年龄下降 ,而室间隔厚度随年龄增厚 ,且室间隔厚度和E/A呈显著负偏相关 (P <0 .0 1)。在高血压分级组中 ,Ⅰ～Ⅲ级高血压组中男性的室间隔厚度均厚于女性 (均P <0 .0 1) ,Ⅰ、Ⅱ级高血压组中男性的左室后壁厚度厚于女性 (P <0 .0 5,P <0 .0 1) ,Ⅰ级高血压组中女性的E/A低于男性 (P <0 .0 5)。提示 :左室舒张功能随着年龄的增加而降低 ,而且和高血压左室肥厚呈负偏相关关系 ,性别对其也有一定的影响     

Recurrent pregnancy loss due to familial and non-familial habitual molar pregnancy.

OBJECTIVES: To present a series of women with recurrent molar pregnancies, including rare familial cases, and discuss etiology and treatment options. METHODS: We performed a detailed clinical evaluation and pedigree analysis of five Egyptian women with recurrent pregnancy loss due to molar pregnancy. RESULTS: The women had a history of four to nine consecutive hydatidiform moles but of no viable pregnancies. Two of the women had molar pregnancies with different husbands who themselves had viable offspring from previous wives; and three of them, who belonged to a family with extensive intermarriage, had a pedigree consistent with an autosomal recessive maternal-effect mutation. CONCLUSIONS: Recurrent pregnancy loss due to habitual molar pregnancy is uncommon and familial cases are extremely rare. The etiology of this disorder is not well understood but likely results from a maternal-effect mutation. Management options are limited, especially for couples who desire to have their own genetic offspring.