Cox-2、P63蛋白在非小细胞肺癌中的表达及意义

目的 探讨非小细胞肺癌(Non-small cell lung cancer,NSCLC)组织中环氧化酶-2(Cyclooxygenase2,COX-2)、P63的表达及其与临床病理因素的关系.方法 应用免疫组织化学S-P法分别检测78例NSCLC,(43例鳞癌,35例腺癌)组织中COX-2、P63蛋白的表达情况.结果 78例NSCLC组织中COX-2为61.5%(48/78)、P63阳性表达56.4%(44/78)其中腺癌阳性率为91.4%(32/35)明显高于鳞癌37.2%(16/43)(P＜0.01);COX-2在有淋巴结转移的NSCLC阳性表达率86.7%,亦明显高于无淋巴结转移阳性率27.3%(9/33)(P＜0.01);COX-2在临床分期Ⅰ、Ⅱ期中阳性表达为29.7%,明显低于Ⅲ、Ⅳ期中阳性表达90.2%(P＜0.01).P63蛋白在肺鳞癌组织中阳性表达率97%,而腺癌组织中阳性率则为14.3%(P＜0.01);P63在有淋巴结转移的NSCLC中阳性率为57.8%,而无淋巴结转移的阳性表达率为54.5%(P＞0.05);P63在临床分期Ⅰ、Ⅱ期NSCLC组织中阳性表达率为64.9%和P63Ⅲ、Ⅳ期中阳性表达率48.8%表达差异无显著性(P＞0.05). 结论提示COX-2在NSCLC组织中的过度表达与肺腺癌的进展以及淋巴结转移,临床分期等有密切关系,P63在肺鳞癌组织中的高表达,提示可将P63检测作为鉴别低分化肺癌的参考指标.     

非小细胞肺癌中S100A2和p53蛋白的表达

目的 研究S100A2蛋白和p53蛋白在非小细胞肺癌(NSCLC)中的表达,阐明其与肺癌发展及转移的关系.方法 以15例正常肺组织为对照,采用免疫组织化学方法 (SP法)检测32例鳞癌、28例腺癌中S100A2、p53蛋白的表达水平.结果 S100A2蛋白在NSCLC中表达率为70.0%(42/60),在正常组织中表达率为20.0%(3/15).p53蛋白在NSCLC中表达率为63.3%(38/60),在正常组织中表达率为26.6%(4/15).肿瘤与正常组织表达差异有显著性(P＜0.01).S100A2蛋白在肺腺癌和肺鳞癌中的表达率分别为60.7%(17/28)和78.1%(25/32),差异无统计学意义.p53蛋白在鳞癌中表达率为78.1%(25/32),在腺癌中的表达率为46.4%(13/28),差异有统计学意义(P＜0.05).S100A2蛋白和p53蛋白在Ⅰ期患者中表达率分别为43.7%(7/16)和12.5%(2/16),Ⅱ、Ⅲ期患者中的表达率为79.5%(35/44)和81.8%(36/44),差异有统计学意义(P＜0.05).p53蛋白表达率低分化组为79.1%(19/24),中、高分化组为52.7%(19/36),差异有统计学意义(P＜0.05).有淋巴结转移组和无淋巴结转移组的S100A2蛋白阳性表达率分别为82.75%(24/29)、5 8.06%(18/31),有淋巴结转移组高于无淋巴结转移组,差异有统计学意义(P＜0.01).有淋巴结转移组和无淋巴结转移组的p53蛋白阳性表达率分别为82.76%(24/29)、45.16%(14/31),有淋巴结转移组高于无淋巴结转移组,差异有统计学意义(P＜0.01).结论 S100A2蛋白和p53蛋白在有淋巴结转移、TMN分期高的肺癌组织中表达显著增加,p53蛋白在不同分化程度的NSCLC中表达有差异,分化程度低的肿瘤p53蛋白表达增高.提示S100A2和p53蛋白可作为判断肺癌生物学行为的重要参考指标.     

非小细胞肺癌中Survivin的表达及其临床意义的研究

目的 探讨Survivin基因在非小细胞肺癌(NSCLC)组织中的表达及其与临床病理因素的关系.方法 采用逆转录-聚合酶链反应(RT-PCR)方法检测80例非小细胞肺癌组织以及60例癌旁肺组织中Survivin 基因mRNA的表达.结果 Survivin在NSCLC组织中阳性表达率为67.75％(55/80),在NSCLC癌旁组织中阳性表达为41.6％(25/60),肺癌组织和癌旁组织中Survivin基因表达差异有统计学意义(P＜0.05),Survivin在不同的临床分期、有无淋巴结转移中的表达差异有统计学意义(P＜0.05).结论 检测肺癌组织中Survivin的表达,可作为判断肺癌转移和分期以及预后的指标.     

非小细胞肺癌组织中Survivin、p16基因的表达及关系

目的 探讨凋亡抑制因子Survivin、抑癌基因p16在非小细胞肺癌(NSCLC)中的表达意义及关系.方法 采用免疫组化链酶亲和素-生物素-过氧化物酶复合体(SABC)方法检测64例NSCLC组织及26例癌旁组织、15例肺良性疾病组织Survivin、p16基因的表达,并分析其相关性.结果 Survivin蛋白在NSCLC组织中阳性表达率70.31%,癌旁组织阳性表达率11.54%(P＜0.05),肺良性疾病中不表达.Survivin蛋白表达与NSCLC的分化程度、TNM分期、淋巴结转移相关(P＜0.05).p16蛋白在肺良性疾病组织及癌旁组织中的表达与在NSCLC组织中的表达差异均有显著性(P＜0.05).p16蛋白表达阳性组、阴性组的Survivin蛋白表达阳性率差异有显著性(P＜0.05),且表达呈正相关(r=0.396,P＜0.005).结论 Survivin基因在NSCLC的发生、发展中起重要作用,有可能作为其早期诊断、治疗的靶基因之一.Survivin的过度表达与p16抑癌作用的失去可能在NSCLC的发病机制中有协同作用.     

核因子κB受体活化因子配基(RANKL)在非小细胞肺癌中的表达及其与血管密度的关系

目的 探讨核因子κB受体活化因子配基(RANKL)在非小细胞肺癌(NSCLC)的表达以及与微血管密度(MVD)的关系.方法 应用免疫组织化学的方法检测50例NSCLC中RANKL和CD34的表达.结果 ①RANKL在非小细胞肺癌中阳性表达率为62.0%(31/50),其中肺腺癌和肺鳞癌的RANKL阳性表达率分别为73.3%(22/30),45.0%(9/20),肺腺癌的RANKL蛋白阳性表达率显著高于肺鳞癌的RANKL阳性表达率(P＜0.05).②RANKL阳性组的MVD值高于RANKL阴性组,差异有显著性(P＜0.05).结论 RANKL在非小细胞肺癌组织中的表达增高,可能在促进肿瘤血管的生成方面起着重要的作用.     

非小细胞肺癌组织中PTEN基因与Ki67蛋白的表达及其意义

目的:探讨第10染色体同源丢失性磷酸酶-张力蛋白酶(PTEN)基因、Ki67蛋白在非小细胞肺癌(NSCLC)组织中的表达及其临床意义.方法:用免疫组化方法检测67例NSCLC组织以及41例癌旁正常肺组织中PTEN、Ki67蛋白的表达,并分析其与各临床病理指标及细胞增殖之间的相关性.结果:PTEN在正常肺组织中阳性表达率显著高于NSCLC组织(P＜0.05),PTEN表达与组织类型、细胞分化程度、淋巴结转移密切相关(P＜0.05);肺癌组织中Ki67的过度表达与肺癌的临床分期、淋巴结转移相关(P＜0.05);PTEN表达与Ki67表达负相关(r=-0.239,P＜0.05).结论:PTEN蛋白表达的缺失与NSCLC的恶性侵袭有关.联合检测PTEN与Ki67的表达有助于判断NSCLC的预后.     

非小细胞肺癌组织中Moesin表达及临床意义

目的:探讨膜结构伸展刺突蛋白(Moesin)在非小细胞肺癌(NSCLC)组织中的表达差异与临床意义.方法:采用免疫组化法检测100例不同病理特点的非小细胞肺癌组织和50例正常非肿瘤组织中Moesin的表达,结合临床病理特点及预后分析非小细胞肺癌中Moesin阳性表达的临床意义.结果:非小细胞肺癌组织Moesin阳性表达率为90.00％(90/100),正常肺组织中阳性表达率为4.00％(2/50),两者比较差异有统计学意义(P＜0.05);Moesin在TNM不同分期的非小细胞肺癌组织及淋巴结转移标本中表达差异有统计学意义(P＜0.05);非小细胞肺癌Moesin表达阴性组和阳性组之间生存率比较差异有统计学意义(P＜0.05).结论:Moesin在非小细胞肺癌的阳性表达与淋巴结转移、肺癌分期和患者预后有一定相关性,可作为判断非小细胞肺癌患者预后评估的参考依据.     

HMGB1、 MMP-9在肺癌组织的表达及临床意义

目的 探讨肺癌组织中基质金属蛋白酶-9(MMP-9)和高迁移率族蛋白B1(HMGB1)的表达及其意义.方法 采用免疫组化SP法检测65例肺癌组织及其癌旁对照组中HMGB1和MMP-9的表达.结果 非小细胞肺癌(NSCLC)组织中HMGB1及MMP-9阳性率明显高于其癌旁组织(P＜0.05);HMGB1在肺鳞癌组织中阳性表达率高于腺癌组织,且其癌旁组织的阳性表达率也高于腺癌的癌旁组织(P＜0.05);MMP-9在肺鳞癌组织中阳性表达率低于腺癌组织(P＜0.05);有淋巴结转移的NSCLC组织中HMGB1及MMP-9阳性表达率明显高于无淋巴结转移的NSCLC组织(P＜0.05);HMGB1及MMP-9在肺癌组织中的表达成正相关(P＜0.05).结论 HMGB1和MMP-9的表达与肺癌组织病理类型和淋巴结转移有关,可作为肺癌转移、治疗和预后判断指标.     

非小细胞肺癌组织中KAI1/CD82基因表达及意义

目的探讨KAI1/CD82基因在非小细胞肺癌(NSCLC)组织中的表达水平及在癌细胞发生侵袭、转移过程中的意义.方法采用S-P免疫组织化学方法检测62例NSCLC原发灶及22例淋巴结转移灶中KAI1/CD82蛋白的表达.结果 KAI1/CD82蛋白在NSCLC组织中阳性表达率32.26%,明显低于癌旁正常肺组织(85.0%, P<0.01).KAI1/CD82蛋白在低分化、TNM分期Ⅲ～Ⅳ期及有淋巴结转移肿瘤中表达显著降低(P<0.05).22例淋巴结转移灶与原发灶表达水平配对比较分析,淋巴结转移灶中KAI1/CD82蛋白表达水平显著低于原发灶(P<0.05).结论 KAI1/CD82蛋白低表达可能参与了NSCLC的恶性进展,可作为判断NSCLC早期侵袭、转移的重要指标之一.     

细胞周期蛋白D1,P63蛋白在非小细胞肺癌中的表达及临床意义

目的:探讨细胞周期蛋白D1(CyclinDl),P63蛋白在非小细胞肺癌(NSCLC)中的表达及临床意义.方法:应用免疫组化EnVision二步法检测71例NSCLC和15例肺良性病变组织中两种基因蛋白的表达.结果:在肺鳞癌、肺腺癌、肺良性病变中CyclinDl的阳性表达率分别为64.3%(18/28),67.5%(27/40)和13.3%(2/15);P63蛋白阳性表达率分别为78.6%(22/28),27.5%(11/40)和26.7%(4/15).有淋巴结转移组CyclinD1和P63阳性率明显高于无淋巴结转移组,P＜0.01;Ⅲ-Ⅳ期CyclinD1表达的阳性率高于Ⅰ-Ⅱ期,P＜0.01.结论:CyclinD1和P63的过表达与肺癌的发生、发展有关.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.