Bcl-2、PTEN和P53在非小细胞肺癌组织中的表达及相关性的研究

目的探讨Bcl-2、PTEN和P53基因在非小细胞肺癌组织中的表达及与临床病理预后的关系。方法采用免疫组化S-P法检测96例非小细胞肺癌组织中Bcl-2、PTEN和P53蛋白的表达。结果⑴96例非小细胞肺癌组织中Bcl-2、PTEN和P53蛋白阳性表达总的阳性率分别为59.4%(57/96)、52.1%(50/96)和60.4%(58/96)。⑵Bcl-2蛋白的阳性表达在肺癌病理分级组间比较,差异有统计学意义(P <0.05);与肺癌P-TNM分期组间比较,差异亦有统计学意义(P <0.05)。⑶PTEN、P53蛋白的阳性表达在肺癌P-TNM分期及淋巴结转移组间差异均有统计学意义(P <0.01),PTEN在肺癌病理分级组间差异亦有统计学意义(P <0.01)。结论 Bcl-2、PTEN和P53基因在非小细胞肺癌的组织发生发展起着重要作用,三种基因蛋白产物的检测对非小细胞肺癌患者的预后评估有积极意义。     

组织蛋白酶B在非小细胞肺癌组织中的表达及临床意义

目的 探讨组织蛋白酶B(CB)在非小细胞肺癌(NSCLC)中的表达情况及临床意义.方法 通过免疫组织化学SAB法检测NSCLC组织蛋白酶B在50例非小细胞肺癌标本中的表达水平.结果 Ⅲ～Ⅳ期肺癌组织组织蛋白酶B阳性表达率显著高于Ⅰ～Ⅱ期肺癌(P＜0.01);随着分化程度由高分化、中分化至低分化,组织蛋白酶B阳性表达率明显增加,差异均有显著性(P＜0.05);伴有淋巴结转移者,组织蛋白酶B阳性表达率明显高于无淋巴结转移者(P＜0.01).结论 组织蛋白酶B可作为判断非小细胞肺癌淋巴结转移潜能和预后的辅助指标.     

PTEN在非小细胞肺癌中的表达及其临床意义

目的 探讨PTEN基因在非小细胞肺癌中的表达及临床意义.方法 应用免疫组织化学法检测65例非小细胞肺癌组织及18例非肺癌组织中PTEN的表达.结果 ①PTEN在非小细胞肺癌组织中的阳性率为41.54%,显著低于非肺癌组织的阳性率88.89%(P＜0.05);②PTEN的表达与肺癌患者的细胞分化程度、pTNM分期、淋巴结转移、生存期密切相关(P＜0.05).细胞分化程度越低,TNM分期越晚,PTEN阳性率越低;有淋巴结转移组PTEN蛋白阳性率(28.89%)显著低于无淋巴结转移组(70.00%);生存期≤5年组(24.39%)PTEN的阳性表达率低于生存期＞5年组(70.83%).PTEN与病理类型无关(P＞0.05).结论 PTEN与非小细胞肺癌的临床特征和生物学行为密切相关,PTEN的检测将有助于评估肺癌患者的恶性程度和预后.     

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.     

Significance and Expression of LUNX mRNA in Peripheral Blood and Lymph Node of Non-small Cell Lung Carcinoma

目的 探讨非小细胞肺癌(NSCLC)患者外周血及淋巴结组织中肺特异性X蛋白(LUNX)mRNA的表达及其临床意义.方法 采用反转录-聚合酶链反应(RT-PCR)方法检测56例NSCLC患者及34例肺良性病变患者外周血及淋巴结组织中LUNX mRNA的表达情况,对比两组表达的差异,并分析其表达与NSCLC临床组织病理学特征的关系.结果 病理组织学检查NSCLC淋巴结微转移阳性率为50.0%(28/56),RT-PCR法检查淋巴结组织LUNX mRNA阳性表达率为53.6%(30/56),两者差异无统计学意义(P=0.705).NSCLC组外周血中LUNX mRNA阳性表达率为58.9%(33/56),在淋巴结组织中的阳性表达率为53.6%(30/56),两者差异无统计学意义(P=0.453);肺良性病变组外周血及淋巴结组织中均无LUNX mRNA表达,NSCLC组外周血及淋巴结组织中LUNX mRNA阳性表达率与对照组比较,差异有统计学意义(P均＜0.01).外周血和淋巴结组织中LUNX mRNA阳性表达率与肿瘤的分化程度、淋巴结转移和临床分期均有关(P＜0.05),与患者年龄、性别、有无吸烟以及病理类型、肿瘤部位等均无关(P＞0.05).结论 外周血和淋巴结中LUNX mRNA的表达是肺癌微转移的一个潜在的特异性指标,外周血LUNX mRNA可能更具敏感性,LUNX mRNA的检测对预后评估具有重要的临床意义.     

吲哚胺-2,3-双加氧酶在非小细胞肺癌中的表达

目的 探讨吲哚胺-2,3-双加氧酶(indoleamine-2,3-dioxygenase,IDO)在非小细胞肺癌中的表达及意义.方法 收集38例非小细胞肺癌组织和10例癌旁正常肺组织.用半定量免疫组织化学方法 检测肺组织中IDO蛋白阳性率,实时荧光定量PCR检测肺组织中IDO mRNA表达水平.结果肺癌组IDO蛋白阳性率和IDO mRNA表达水平均明显高于对照组,差异均具有统计学意义(均P＜0.05);而肺癌组按不同病理分型中,腺癌组和鳞癌组比较差异无统计学意义(P＞0.05).肺癌组按不同分化程度分为高、中、低3组,经统计学分析,3组中IDO阳性表达率和IDO mRNA表达水平差异均有统计学意义(均P＜0.05).肺癌组按有和无淋巴结转移分组比较,IDO蛋白阳性率和IDO mRNA表达水平差异也均有统计学意义(均P＜0.05).结论 IDO在非小细胞肺癌中呈高表达,与分化程度及有无淋巴结转移有关,但与肺癌病理分型无关.     

Twist与RECK在非小细胞肺癌中的表达及其对预后的影响

目的 通过免疫组化法实验观察Twist和RECK在非小细胞肺癌(NSCLC)中的表达,探讨其在NSCLC中的临床意义及对疾病预后的影响.方法 采用S-P免疫组化法检测60例有完整资料的NSCLC术后肿瘤标本和60例距离肿瘤5 cm以上的正常肺组织中Twist与RECK蛋白的表达情况.通过Kaplan-Meier生存曲线法比较阳性组和阴性组患者的预后情况.结果 在非小细胞肺癌中Twist阳性表达率为65%,显著高于癌旁组织中的8.3%;RECK阳性表达率为51.7%,低于癌旁组织中的85%.Twist在非小细胞肺癌组织中的阳性表达与肿瘤的TNM分期、原发肿瘤大小、淋巴结转移情况及2年无瘤生存率有显著的相关性(P＜0.05).RECK在非小细胞肺癌组织中的表达与肿瘤TNM分期、原发肿瘤大小、淋巴结转移情况及2年无瘤生存率存在相关性(P＜0.05),而两者与其他病理因素无关(P＞0.05).Twist与RECK在非小细胞肺癌组织中的表达具有相关性(P＜0.05).Kaplan-Meier生存曲线分析显示患者术后2年无瘤生存率随Twist阳性表达呈现下降趋势,而随RECK阳性表达显著上升.结论 Twist、RECK可能在NSCLC的浸润、转移中存在相互作用,可作为反映NSCLC进展的重要生物学指标.Twist高表达、RECK低表达的患者易发生淋巴结转移,预后较差,术后2年无瘤生存率较低.     

细胞核分布基因C结构域1在非小细胞肺癌中的表达及其意义

目的观察细胞核分布基因C结构域1 (NudCD1)在非小细胞肺癌中的表达及其意义。方法收集116例非小细胞肺癌患者癌组织和癌旁组织标本,免疫组化SP法测定NudCD1表达情况,分析其与临床病理特征及预后之间的关系。多因素Cox回归分析预测不良事件的指标。结果非小细胞肺癌石蜡标本中NudCD1阳性表达率85.3%。癌旁组织阳性表达率25%。NudCD1蛋白表达增高与肺癌的病理分级、淋巴结转移、临床分期密切相关,而与患者性别、年龄、肿瘤大小无关。NudCD1蛋白高表达的患者与低表达的患者整体生存曲线分布比较,差异有统计学意义(P 0.05),其中淋巴结转移、组织学分级、临床分期和NudCD1均是肺癌患者预后的独立影响指标。结论 NudCD1在非小细胞肺癌组织表达均上调,与非小细胞肺癌的发生、进展以及临床预后密切相关     

非小细胞肺癌中DAXX表达及临床意义

目的：探讨非小细胞肺癌组织中DAXX蛋白表达及其与临床病理参数和患者预后的关系。方法：采用组织芯片结合免疫组织化学方法,检测135例非小细胞肺癌患者癌组织及其癌旁组织中DAXX蛋白的表达情况,结合患者的临床病理参数以及相关随访资料进行统计学分析。结果：DAXX蛋白在非小细胞肺癌癌组织高表达108例（80.0%）,癌旁组织高表达30例（22.2%）,差异具有统计学意义（P＜0.05）,其表达水平与患者的组织病理学分级、TNM分期、原发肿瘤、淋巴结的转移、远处转移以及胸膜侵犯显著相关（P均＜0.05）,Kaplan-Meier统计分析显示DAXX高表达组患者生存时间明显短于低表达组（P＜0.05）,COX比例风险回归模型分析显示DAXX表达程度、TNM分期、淋巴结转移及远处转移为患者独立的预后因素。结论：DAXX蛋白表达与非小细胞肺癌的发生发展有关,其高表达提示患者预后不良。     

Beclin-1在非小细胞肺癌中的表达与意义

目的 探讨白噬重要调控因子Beclin-1在非小细胞肺癌(non-small cell lung cancer,NSCLC)中的表达及其临床意义.方法 收集150例非小细胞肺癌患者的癌组织及癌旁组织并制成组织芯片,应用免疫组化的方法检测Beclin-l在肺癌组织及癌旁组织中的表达情况.分析Beclin-1的表达与肺癌不同临床参数之间的关系并对病例进行生存分析.结果 Beclin-1在肺癌组织的阳性表达率(26.00％)显著低于癌旁组织(82.00％)(P＜0.05);肺鳞癌组织中Beclin-1的阳性表达率(34.66％)显著高于肺腺癌(17.34％)(P＜0.05);Beclin-1的表达率在不同性别、年龄、分化程度、淋巴结转移、远处转移组间无显著差异(P＞0.05);Beclin-1阴性表达的非小细胞肺癌患者的生存率显著低于阳性表达的患者(P＜0.05).结论 Beclin-1可能是一个非小细胞肺癌治疗的新的靶点,有可能成为非小细胞肺癌病理类型判断的辅助指标和预后评估候选指标之一.     

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.