p16、cyclin D1在原发性肺癌的表达及其临床意义

目的:观察并探讨p16、cyclin D1基因在原发性肺癌组织中的表达水平及其与肿瘤病理生物学行为等的关系.方法:采用S-P免疫组化方法检测68例原发性肺癌标本中p16、cyclin D1蛋白的表达.结果:原发性肺癌中p16蛋白表达阳性率显著低于癌旁组织(P＜0.05);cyclin D1在原发肺癌中的阳性率显著高于癌旁组织(P＜0.05).二者表达与肿瘤大小、淋巴结转移、病理分级及疾病分期密切相关(P＜0.05),且二者表达显著负相关(P＜0.05).结论:在原发型肺癌中存在抑癌基因p16编码蛋白的表达下调以及原癌基因cyclin D1表达上调,与肿瘤的进展密切相关.提示二者可能通过影响细胞周期调控在肺癌的发生发展过程中起重要作用.     

肺癌组织中α1,3 FUCT Ⅶ mRNA的表达及其与转移的关系

目的 探讨α1,3 FUCT Ⅶ基因mRNA在肺癌组织、癌旁正常肺组织中的表达及其与临床病理因素的关系.方法 应用逆转录-聚合酶链式反应(RT-PCR)法检测α1,3 FUCT Ⅶ基因mRNA在92例肺癌组织、20例癌旁正常肺组织中的表达.结果 α1,3 FUCT Ⅶ基因mRNA在肺癌组织中表达量为(0.67±0.15),在癌旁正常肺组织表达量为(0.45±0.11),差异有统计学意义(P<0.05).其中在腺癌组织(0.79±0.19)中表达最强,小细胞肺癌组织(0.68±0.17)中表达次之,鳞癌组织(0.51±0.12)中表达最弱,差异有统计学意义(P<0.05).α1,3 FUCT Ⅶ基因mRNA表达与TNM分期、分化程度、淋巴结转移、组织学类型有关,与年龄、性别无关(P>0.05).结论 α1,3 FUCT Ⅶ基因mRNA表达可能与肺癌的发生及转移相关.     

表皮生长因子及其受体mRNA在肺癌组织中的表达

目的:探讨肺癌组织中表皮生长因子(EGF)及其受体(EGFR)mRNA的表达水平和临床意义.方法:采用半定量RT-PCR技术检测30例肺良性疾病、55例原发性肺癌及癌旁肺组织中EGF、EFGR mRNA的表达水平.结果:非小细胞肺癌(NSCLC)组织EGF mRNA表达阳性率为72.92%,EGFR阳性率为77.08%;肺良性病变肺组织EGF阳性率为6.67%,EGFR阳性率为13.33%;7例小细胞肺癌(SCLC)均无EGF、EGFR mRNA阳性表达.在NSCLC中,距癌组织3 cm以内癌旁肺组织EGF阳性率为77.08%,EGFR阳性率为79.17%;6 cm以远正常肺组织为10.42%.NSCLC组织、癌旁肺组织mRNA含量明显高于良性肺疾病、远癌正常肺组织(P＜0.01).结论:肺癌组织EGF、EGFR mRNA表达水平显著高于良性疾病肺组织,检测EGF、EGFR mRNA有助于肺部良恶性疾病的鉴别诊断.     

WISP-1、WISP-2及WISP-3在非小细胞肺癌中的表达水平

目的探讨Wnt诱导分泌型蛋白-1(WISP-1)、WISP-2及WISP-3在非小细胞肺癌(NSCLC)中的表达及临床意义。方法选取2016年1月至2018年1月期间于本院就诊且符合条件的116例NSCLC患者,取其癌组织标本为观察组,取其癌旁正常肺组织为对照组,采用PT-PCR法检测两组WISP-1、WISP-2及WISP-3 mRNA表达情况,采用免疫组化法检测两组WISP-1、WISP-2及WISP-3蛋白阳性表达,并分析其与临床病理参数的相关性。结果观察组WISP-1、WISP-3 mRNA相对表达量分别为(-2.81±0.64)、(-3.54±1.41),显著高于对照组的(-6.45±2.45)、(-6.15±2.72);WISP-2 mRNA相对表达量为(2.51±1.08),显著低于对照组的(4.95±2.36),差异均有统计学意义(P0.05)。观察组WISP-1、WISP-3阳性表达(69.83%,67.24%)显著高于对照组(31.90%,18.10%),WISP-2阳性表达(46.55%)显著低于对照组(84.48%),差异均有统计学意义(P0.05)。NSCLC组织中WISP-1阳性表达与病理类型、年龄、是否淋巴结转移相关;WISP-2阳性表达与病理类型、吸烟、TNM分期、组织学分化程度、是否淋巴结转移相关;WISP-3阳性表达与组织学分化程度、TNM分期、年龄相关。结论 WISP-1、WISP-2、WISP-3与NSCLC发生发展密切相关,其中WISP-1、WISP-3可能是致癌基因,其蛋白产物可作为临床干预治疗的重要靶蛋白;WISP-2可能是抑癌基因,可考虑作为临床诊断及预后预测的参考指标。     

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.     

肺癌组织中p16基因表达的意义

目的:了解p16基因蛋白在人肺癌组织中的表达情况.方法:应用免疫组化SP法检测69例肺癌及癌旁正常肺组织,21例肺良性疾病肺癌组织中p16基因蛋白的表达.结果:肺良性疾病及癌周正常肺组织p16蛋白阳性率分别为100%和91.3%,高于肺癌组织中的39.1%,差异显著(P＜0.05);p16蛋白表达与肺癌病理类型、临床分期及淋巴结转移有明显的相关性(P＜0.05);与组织学分级无关.结论:p16基因蛋白的表达情况与肺癌的发生、发展有关.     

人肺癌组织中富含酪氨酸61和结缔组织生长因子的表达

目的:研究人肺癌组织中富含酪氨酸61(CYR61)和结缔组织生长因子(CTGF)的基因表达及其与临床参数的关系.方法:采用实时定量PCR及免疫组织化学技术对60例肺癌患者的肺癌组织和癌旁正常肺组织CYR61和CTGF基因mRNA表达水平和蛋白表达进行测定,并分析二者的表达与临床参数的关系.结果:肺癌组织中CYR61和CTGF mRNA表达水平和蛋白阳性表达率均低于癌旁正常组织(P均＜0.05).肺癌组织中CYR61和CTGF mRNA的表达水平与患者的病理类型、病理分级、淋巴结转移、吸烟及家族史等临床参数有关(P＜0.05);肺癌组织中CYR61和CTGF mRNA表达水平呈正相关(r=0.604;P=0.000).多元回归分析:病理类型和年龄对CYR61表达有重要影响,肿瘤的位置、CYR61表达和性别对肺癌组织中的CTGF表达有重要影响.结论:CYR61和CTGF单种基因或两者相互作用对肺癌的发展起重要作用,其表达的蛋白产物可作为临床干预治疗的重要靶蛋白.     

非小细胞肺癌中基质金属蛋白酶-10的表达

目的:探讨非小细胞肺癌(non-small cell lung cancer, NSCLC)中基质金属蛋白酶-10(matrix metalloproteinase-10,MMP-10)的表达及其与临床参数间的关系.方法:使用RT-PCR法及免疫组化法,检测32对NSCLC癌组织及癌旁正常组织中MMP-10的表达水平,并分析其与性别、年龄、分期、分级、肿瘤大小、淋巴结转移及病理类型之间的相关性.结果:MMP-10 的表达在mRNA水平与蛋白质水平表达有差异:MMP-10 mRNA在NSCLC癌组织中的表达要显著低于癌旁正常肺组织(P＜0.05),MMP-10蛋白在肺癌癌组织中的表达要显著高于癌旁正常肺组织(P＜0.01);在NSCLC癌组织中MMP-10 mRNA 的表达与MMP-10蛋白的表达呈正相关(r=0.4672, P＜0.05),而在癌旁正常肺组织中,两者表达相关性无显著统计学差异(r=-0.003022,P＞0.05).结论:MMP-10 mRNA在肺癌癌组织中表达要低于正常组织,MMP-10蛋白在肺癌癌组织中表达要高于正常组织.     

SYBR荧光实时定量PCR检测NSCLC中ERCC1基因表达

目的:建立检测核苷酸切除修复基因ERCC1mRNA的SYBR Green I实时定量PCR的方法,了解肺癌组织及其癌缘肺组织中ERCC1的表达水平,研究肺癌组织中ERCC1的表达水平与各种临床病理特征之间的关系.方法:应用SYBR荧光实时定量PCR(Real-time PCR)技术检测30例肺癌组织和离肿瘤边缘5cm处正常癌旁组织中的ERCC1mRNA表达水平,同时分析ERCC1表达水平在不同肺癌临床分期和病理类型各组间的关系.结果:肺癌中ERCC1mRNA的表达(5.16±2.51)低于正常癌旁组织(11.17±4.79)(P<0.05).但在不同肺癌临床分期、组织类型各组之间差异均无统计学意义.结论:所建立的SYBR Green I实时定量PCR方法可以成功地检测ERCC1基因的表达量.     

膀胱移行细胞癌组织中 KAI1 mRNA与蛋白的表达

目的:检测膀胱移行细胞癌组织中KAI1 mRNA与蛋白的表达.方法:应用逆转录-聚合酶链反应(RT-PCR)及免疫组织化学方法分别检测61例膀胱移行细胞癌组织及7例正常膀胱黏膜组织中KAI1 mRNA及蛋白的表达.结果:膀胱移行细胞癌组织中KAI1 mRNA的相对含量为0.76±0.25,KAI1蛋白阳性表达率为63.9%,均低于正常膀胱黏膜组织((1.35±0.38)与100.0%,P均＜0.01).膀胱移行细胞癌组织中KAI1 mRNA和蛋白的表达均与病理分级、临床分期、复发及预后相关(P＜0.05或0.01).结论:KAI1基因的表达在膀胱移行细胞癌的恶性进展过程中起重要作用,有可能成为评估肿瘤恶性程度、复发及预后的新指标.     

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.