Quantitative real-time PCR detection of adenovirus in clinical blood specimens: A comparison of plasma, whole blood and peripheral blood mononuclear cells

BACKGROUND: Detection and quantification of adenovirus (ADV) in peripheral blood specimens has become an increasingly important tool in the management of immunosuppressed patients. Investigators have described the use of whole blood (WB), peripheral blood mononuclear cells (PBMC), serum and plasma but no studies have compared the utility of these different sample types for use in a clinical diagnostic assay. OBJECTIVES: To determine the optimal blood compartment for quantitative real-time measurement of adenovirus in peripheral blood specimens. STUDY DESIGN: WB, PBMC, and plasma representing 338 samples from 148 patients were tested for ADV by quantitative real-time PCR (qrt-PCR) and the results compared for concordance of both qualitative sensitivity and viral load among positive specimens. RESULTS: There was no significant difference in qualitative sensitivity among the three tested specimen types. Quantitative values of WB and plasma were similar and tended to be greater than those found in PBMC samples. Comparison of consecutive positive samples within individual patients showed that viral loads tracked similarly over time, irrespective of the sample type tested. CONCLUSION: While WB and plasma do not offer a significant increase in sensitivity over PBMC, they may offer benefits in terms of reduced processing costs and laboratory turn around time.     

前列腺癌与增生性病变的流式细胞分析

应用流式细胞分析术（ＦＣＭ）对２０例前列腺癌（ＰＣ）和１５例良性前列腺组织作了ＤＮＡ含量检测，着重分析了ＰＣ及增生性病变的细胞增殖指数（ＰＩ）与ＤＮＡ指数（ＤＩ）。结果表明在良恶性前列腺组织中有明显差异（Ｐ＜０．０１）。２０例ＰＣ的组织学分级与ＦＣＭ检测结果有关，ＰＣ－Ⅲ与ＰＣ１－Ⅰ、ＰＣ－Ⅱ与ＰＣ－Ⅰ、ＰＣ－Ⅲ与ＢＰＨ的ＰＩ、ＤＩ相差显著（Ｐ＜０．０１）。本研究结果提示良恶性前列腺病变的ＰＩ与ＤＩ能较客观地反应不同细胞的生物活性，并对分化低、分级高的ＰＣ的恶性程度判断及其预后的推测，以及癌前病变的分析有意义。     

气功外气对人鼻咽癌细胞株的抑制作用和DNA合成影响的初步探讨

为寻找祖国医学治疗鼻咽癌的新途径,我们进行了气功外气对体外培养的人鼻咽低分化鳞癌细胞株(CNE—2)的抑制作用试验,实验共进行了三次,光镜观察受功组比对照组生长缓慢,外气对细胞生长的抑制率分别为33％(P<0.05);43％(P<0.05);55％(P<0.001)。同时进行了~3H—TdR掺入试验,观察外气对CNE—2细胞株DNA合成的影响。实验进行了四次,其抑制率分别为:34％(P<0.01);35％(P<0.01);39％(P<0.01),53％(P<0.001),模仿者为17％(P>0.05)。     

大肠癌“移行粘膜”病理变化研究——粘液组化、免疫组化及电镜观察

对200例大肠癌旁“移行粘膜”进行了粘液组化HID／AB及PAT／KOH／PAS检测,单克隆抗体MC3和CEA免疫组化标记,凝集素PNA、UEA－1及DBA受体测定,扫描电镜观察。其结果与10例正常直肠粘膜、130例癌组织、155例各型腺瘤型息肉及3－5个月胎儿大肠粘膜进行对照。结果表明大肠粘膜从良性到恶性的各阶段粘液组化及免疫组化的改变有显著差异（P＜0．05或P＜0．01）,癌旁“移行粘膜”也存在类似癌及胎儿大肠的不成熟性病理变化,异常范围88．0％的病例在2－3cm以内。     

Long-term results of radio-surgical treatment of operable carcinoma of the cervix uteri

Four hundred and fifteen women, treated in our institution from 1961 to 1987 for operable carcinoma of the cervix stage I or II, had a radical hysterectomy with pelvic node dissection. Radiotherapy was associated with this surgery in most cases: 90% of the patients received endocavitary radiation, and 30% external radiotherapy, either pre- or post-operatively, in the case of bad prognostic factors. Median follow up was 7 years; overall survival was 77% at 10 years; the rate of local failure is low (36 cases/415 = 8.7%). Multifactorial analysis, using the Cox model, assessed the following independent prognostic factors, significant for the risk of local recurrence (size of the tumor, N +/- , FIGO stage) and for the risk of metastases and death (parametrium invasion, stage, tumor size). Post-operative mortality was 1.2%. Early surgical iatrogeny was easily treated with no long-term sequela, whereas severe complications, due to the association with pelvic irradiation, occurred in 24 out of 124 patients, leading to 7 "illegitimate" deaths.     

心脏直视手术患儿补体4基因多态性对体外循环中补体激活程度的影响

目的：研究补体4基因多态性与体外循环中补体系统激活程度和肺功能障碍之间的关系。方法：选择武汉市及周边地区在体外循环（CPB）下进行心脏直视手术的患儿156例,于术前抽血用交叉免疫电泳法进行补体4基因型分析。分别于CPB开始前,CPB结束时以及鱼精蛋白中和肝素后10min抽取动脉血样,以放免法对补体3和4活化产物C3a和C4a进行测定。同时记录肺顺应性。结果：补体4基因型AABB,AOBB,OOBB,AABO及AAOO出现频率分别为51．28%,17.95%,4.49%,19.87%及6．41％,CPB结束时C4a水平无明显升高,C3a水平显著升高。鱼精蛋白中和肝素后10min时C4a和C3a水平显著升高,以OOBB组升高最显著,其次为AOBB组;同时OOBB组肺顺应性下降最显著,其次为AOBB组,结论：体外循环由替代途径激活补体系统,鱼精蛋白－肝素复合物由经典途径激活补体系统,国人补体4基因型中,OOBB型出现的频率较白种人高,该基因型在体外循环中补体系统被激活及肺功能受损程度最严重。     

B超对先天性输尿管狭窄的诊断价值

目的：研究超声诊断在先天性输尿管狭窄中的临床价值。方法：对33例输尿管狭窄病例行B超检测,并与X线、手术结果进行对比。结果：B超对输尿管梗阻定位率为93.9%,疾病诊断的符合率81.8%。结论：B超对先天性输尿管狭窄的诊断有较大的优越性和很好的临床价值。     

咪唑安定、异丙酚对体外循环期酸碱平衡的影响

目的 观察异丙酚和咪唑安定在体外循环麻醉中对术前和术中的酸碱度的影响.方法 40例先天性心脏病患者随机分为两组(异丙酚组、咪唑安定组),监测手术前、主动脉阻断10 min和复温至31℃时血气指标等的动态变化.结果与手术前比,主动脉阻断10 min和复温后,血液pH、PaCO2、HCO3-、BEB两组均有明显变化(P＜0.05),但两组间差异无显著性(P＞0.05).结论异丙酚和咪唑安定在体外循环麻醉中其对酸碱度无明显的影响.     

小儿尿道狭窄的治疗

目的：探讨小儿尿道狭窄的治疗方法。方法：10例行尿道成形术,6例行尿道扩张术后留置导尿管,4例行尿道会师术。结果：6例术后排尿正常,均为行尿道成形术者,8例出院后尿道扩张2－3个月后排尿正常,4例需定期行尿道扩张。结论：尿道成形术治疗小儿尿道狭窄疗效确切。     

哇巴因与地高辛对大鼠肝脏钠泵A亚单位基因表达的影响

目的　观察哇巴因与地高辛对大鼠肝脏钠泵基因表达的影响 .方法　分别给大鼠注射哇巴因 (2 0 μg· kg- 1·d- 1 )、地高辛 (32 μg·kg- 1·d- 1 )和生理盐水 (1m L· kg- 1·d- 1 ) ,观察给药后 6wk大鼠血压的动态变化 ;并分别应用分子生物学 RT- PCR及免疫组织化学技术 ,探讨各组大鼠肝脏钠泵 α1 ,α2 及 α3 亚单位 m RNA及蛋白水平基因表达的改变 .结果　给予哇巴因 2 wk后大鼠血压开始升高 ,至 6 wk时明显高于生理盐水组 (17.7± 1.2 ) vs(15 .4± 1.1) k Pa,P<0 .0 1) ,而实验过程中地高辛组血压与对照组比较差异不明显 .无论是在 m RNA水平还是在蛋白水平 ,哇巴因对大鼠肝脏钠泵α1 亚单位表达无影响 ,而地高辛使α1 亚单位表达增强 ;两组大鼠 α2 亚单位表达均无改变 ;哇巴因使 α3 亚单位蛋白水平表达减弱 ,而 m RNA水平增强 ,地高辛组大鼠肝脏钠泵 α3 亚单位无论在 m RNA水平及蛋白水平表达均增强 .结论　哇巴因在高血压发病中可能起着重要作用 ;哇巴因与地高辛可导致不同的钠泵基因表达改变 ,为进一步揭示内源性哇巴因生理与病理作用以及洋地黄类药物药理与毒理作用的分子机制提供了理论及实验依据