HPV阳性宫颈CIN患者联合检测Ki67、P16、INp63基因表达的临床价值

目的:探讨Ki67、P16联合抑癌基因P53基因家族的Np63检测对HPV阳性宫颈CIN的临床诊断价值。方法:选择2017年1月1日—2017年12月31日本院妇产科确诊的240例患者,根据HE染色病理诊断结果分为正常宫颈60例(正常宫颈组)、CIN Ⅰ级60例(LSIL组),CIN Ⅱ级30例、CIN Ⅲ级30例(HSIL组),早期宫颈鳞癌60例(宫颈癌组)。采用免疫组织化学染色的方法检测各组宫颈组织标本中P16、Ki67及INp63蛋白表达,判断检测方法的灵敏度、特异度、阳性预测值、阴性预测值,评价联合检测的诊断效能。结果 Ki67、P16、INp63的表达与宫颈病变级别均存在相关性,且阳性表达率随CIN级别的升高呈上升趋势(P0.001)。P16+Ki67并联检测的灵敏度95.6%,特异度83.4%;串联的灵敏度82.3%,特异度100.0%。P16+Ki67+INp63三者联合并联检测的灵敏度96.7%,特异度85.2%;串联灵敏度87.1%,特异度100.0%。结论:Ki67、P16、INp63在宫颈组织中的表达量,均可以反映宫颈CIN病变级别,而三者联合检测可以提高宫颈CIN诊断的灵敏度和特异度。     

胸、腹腔镜联合全喉切除治疗颈段食管癌

目的探讨胸、腹腔镜联合全喉切除治疗颈段食管的可行性和疗效。方法2009年1月一2014年7月胸、腹腔镜联合全喉切除治疗33例颈段食管癌。胸腔镜下分离食管、腹腔镜下管胃成形、全喉切除、气管永久造口、胃咽吻合术。结果胸部手术时间40～66min,平均53min;腹部手术时间35～51min,平均44rain;颈部手术时间128～150min,平均139min。术中出血量130～270ml,平均150ml。术后住院时间8～14d,平均12d。病理均为鳞状细胞癌,其中高分化2例,中分化19例,中一低分化7例,低分化5例。切缘病理学检查无癌组织残留。31例淋巴结转移。并发症：吻合口漏2例,喉返神经损伤3例,肺部感染6例,胃排空障碍2例,吻合口狭窄1例,无死亡病例。33例随访1个月～5年,术后1、3、5年生存率分别为87．9％、54．5％、45．5％。结论颈段食管癌应采取积极的手术治疗,胃咽吻合术是颈段食管癌切除后较为理想的修复手段。     

Cariporide对热缺血大鼠停跳心脏颈部移植术后bcl-2和bax基因表达的影响

OBJECTIVE: To detect the expression of bcl-2 and bax genes after heterotopic heart transplantation in rats that died of warm ischemia, and to explore the effect of cariporide on the protection of the ratos non heart-beating donors. METHODS: One hundred and twelve clearing Sprague-Dawley male rats were divided into 7 groups at random (each group contained 16 rats): the control group (Group C), the groups of transplanted hearts after 10, 30, and 45 min of asystolia (Group S10,S30,and S45), and the groups of transplanted hearts after 10,30, and 45 min of asystolia and infused with cariporide(Group SH10,SH30, and SH45).The experimental groups were sacrificed totally by warm ischemia, and heterotopic heart transplantation was processed by the Cuff method. The heart samples of S10,SH10,S30, and SH30 groups were taken at 48 hours after the transplantation, and the heart samples of S45, and SH45 groups were taken just after transplantation. The expression of bcl-2 and bax genes were detected by RT-PCR. RESULTS: The death of rats was affirmed when cardiac electric waves vanished after 9~11 minutes of transsection of abdominal aorta. On the RT-PCR test, the expression of bcl-2 gene was the highest and ROD value was maximum in the control group. The expression of bax gene was the lowest and ROD value was minimum in the control group. The ROD value of bcl-2 genes in S10 and S30 groups was less than that in SH10 and SH30 group. The ROD value was just the opposite, and there was stastistical difference (P<0.05).There was no statistical difference between Group S45 and Group SH45 (P>0.05). CONCLUSION: The model of heteroto-pic neck heart transplantation is a convenient animal model for the cardiac muscle protection. Cariporide can suppress the apoptosis of cardiac muscle cells in rats (within 30 min) after death caused by warm ischemia.     

磷酸肌醇-3激酶/蛋白激酶B抑制剂对人脑胶质瘤细胞株U251增殖的影响

目的研究磷酸肌醇-3激酶/蛋白激酶B(PI3K/PKB)特异性抑制剂LY294002对人脑胶质瘤细胞株U251增殖的影响。方法采用免疫细胞化学S-P法检测LY294002对U251细胞磷酸化蛋白激酶B(P-PKB)蛋白的表达,噻唑蓝(MTT)法检测LY294002(LY2940025、10、20、40μmol·L-1)干预24、48、72h后U251细胞增殖的抑制率。结果 LY294002以剂量、时间依赖性方式抑制U251细胞的生长,LY294002组中不同剂量的干预组与对照组相比P-PKB蛋白的表达降低,差别均有统计学意义(P<0.05);LY294002组中随着剂量的增加,其对U251细胞生长抑制率增加,不同剂量干预组间比较差别有统计学意义(P<0.01)。结论 LY294002对人脑胶质瘤U251细胞有抑制生长的作用。LY294002对P-PKB表达的抑制可能是细胞增殖受抑的重要原因。     

原发性食管癌中胸苷磷酸化酶表达和血管生成的临床意义

目的　观察原发性食管癌中胸苷磷酸化酶 (thymidinephosphorylase,TP)的表达情况 ,探讨肿瘤组织中胸苷磷酸化酶表达、肿瘤微血管密度 (microvesseldensity ,MVD)和临床病理特征之间的关系 ,分析TP表达和肿瘤MVD的预后意义。方法　应用单克隆抗体对 6 5例食管癌标本进行免疫组化染色 ,测定TP表达及MVD。结果　TP在食管癌中的表达 (4 5 / 6 5 ,6 9.2 % )明显 (P <0 .0 0 1)高于正常食管粘膜 (4 / 2 4 ,16 .7% )。食管癌的MVD(4 5 .0 9± 8.76 )与正常食管粘膜的MVD(2 7.4 8± 8.4 4 )的差别显著 (P <0 .0 0 1)。食管癌TP阳性的MVD的均值是 (4 6 .5 3± 7.18) ,TP阴性的MVD的均值是 (4 1.85± 11.0 8) ,前者明显 (P =0 .0 4 6 ) 高于后者。食管癌的TP表达与临床病理特征无相关性 ,MVD却与肿瘤的浸润深度(P =0 .0 35 ) 及分期(P =0 .0 18) 有关 ,而且只有MVD才是食管癌的一个预后指标(P <0 .0 0 1)。结论　食管癌的TP表达与MVD密切相关。TP表达与食管癌的临床病理特征无关。MVD与肿瘤的浸润发展有关 ,同时只有MVD才是食管癌的一个预后指标     

丝光绿蝇抗菌物质在不同pH下抑菌活性的研究

Objective To investigate the antibacterial activity of antibacterial substance in Lucilia seri-cata induced by pricking the skin of maggots(fly s larvae)at different pH conditions. Methods The hemo-lymph from the third instar maggots was collected 48 h after pricking,and the antibacterial effect was tested a-gainst Micrococcus lysodeikticus and Staphylococcus aureus on plates at different pH conditions.The antibacterial effect against M.1ysodeikticus was also detected after the hemolymph、was diluted by different pH buffer solu-tions.The bacteriostatic effects were observed after 24 h and the diameters of clear inhibitory ring were recorded to express antibacterial activity. Results The antibacterial activity of the maggot hemolymph against M.lyso-deiktics and S.aureus was stronger on the plates at pH 6.0 and pH 6.5 than that on the other plates.In the group diluted by pH 6.0 buffer solutions.the antibacterial ring of the maggot hemolymph against M lysodeiktic-us was larger than that in others. Conclusion The results implied that the induced antibacterial substance in Lucilia sericata exhibited stronger antibacterial activity under acidic condition.     

新生儿窒息血清多项生化指标变化及其临床应用

窒息是新生儿的常见病 ,由此产生的低氧血症和酸中毒常导致多脏器损害[1]。我们于1999年8月～2001年8月观察了85例窒息新生儿血清多项生化系列指标 ,了解其可能发生的变化 ,以便在诊治过程中采取综合措施 ,现将结果报告如下。资料与方法一、对象本组资料来自本院的新生儿科 ,根据婴儿出生时Apgar评分 [2],将85例窒息新生儿分为重度窒息组37例 (男20例 ,女17例 )和轻度窒息组48例 (男22例 ,女26例 ) ;对照组35例为无窒息史的顺产新生儿 ,其中男18例 ,女17例。二、方法抽取出生48h内新生儿股静脉血。窒息组在治疗10d后再抽取一次。样品不抗凝…     

大鼠无心跳供体肺移植尸体肺的保护方法

目的:探讨减轻无心跳供体(non-heart-beating donor,NHBD)肺热缺血损伤的方法,以更好地保存尸体肺的结构和功能.方法:将64只SD大鼠随机分成4组,每组8对,用"两套管一支架法"完成左肺原位移植.HBD组为有心跳供体组,NHBD-N组为无心跳供体且未采取保护措施组,NHBD-V和NHBD-I组分别采取持续机械通气和胸腔冰盐水降温的保护措施.完成肺移植后,比较4组的肺顺应性、肺功能、肺水含量、能量代谢物含量等各项指标.结果:NHBD肺存在较长的热缺血时间,与HBD肺相比肺损伤更为严重.但是NHBD-V和NHBD-I组与NHBD-N组比较,移植术后肺水含量更低(4.21±0.85,4.14±1.33,5.28±1.24,均P<0.01)、肺损伤指数(11.28±3.26,10.41±2.85,14.35±3.21,均P<0.01)和白细胞浸润程度(316.30±56.24,295.50±70.26,425.60±86.47,均P<0.01)更轻,而肺顺应性和肺能量代谢物保存更好.结论:大鼠NHBD肺在热缺血时给予持续机械通气或胸腔低温浸泡均可取得良好的肺保护效果.     

东芝TBA-120FR全自动生化分析仪凝块检测系统验证

由于现在各医院临床标本较多,且急诊频繁,以前经常由于操之过急生化分析仪经常出现堵针现象,延误患者就诊时间[1]。本院于2011年7月21日购置一台东芝TBA-120FR全自动生化分析仪,且带有凝块检测系统。为了更好了解该仪器的凝块检测系统,对仪器进行了实验性能验证,现将结果报道     

全自动生化分析仪提示“有凝块”的标本发现巨球蛋白血症1例

全自动生化分析仪具有操作简单、检验速度快、检验结果准确度高等优点,目前已被广泛应用于临床。生化分析仪在正常使用中会产生报警提示,常见的提示有样品量不足、样品中有气泡、样品空缺,样品凝固、结果超限等[1]。正确判断、分析警示原因并加以处理,不仅能保证生化项目的可靠性,