胸苷磷酸化酶在浸润性乳腺癌中的表达及其临床病理学意义

目的：研究胸苷磷酸化酶（thymidine phosphorylase,TP）在浸润性乳腺癌中的表达及其临床病理学意义。方法：应用免疫组化法检测103例浸润性乳腺癌及24例乳腺良性病变中TP的表达情况。分析其在乳腺良恶性病变中的表达差异及其临床病理学意义。结果：浸润性乳腺癌组织中TP的表达明显高于正常组织,TP高表达组中淋巴结转移率明显高于TP低表达组。TP的表达与TNM临床分期、组织学分级呈正相关,而与患者年龄无关。结论：TP可作为浸润性乳腺癌判断预后的一个指标。     

TP与D2-40在胃癌中的表达及生物学意义

目的 探讨胸苷磷酸化酶(TP)和D2-40标记阳性的淋巴管密度(LVD)在胃腺癌中表达的关系及生物学意义.方法 应用免疫组化(SP法)检测63例胃腺癌、28例癌旁不典型增生和63例正常胃黏膜组织中TP和D2-40的表达情况.结果 TP在正常胃组织、癌旁不典型增生及胃腺癌中的表达率分别为63.5％,39.3％,4.8％,...     

胸苷磷酸化酶在乳腺癌组织中的表达及其与预后的关系分析

目的研究胸苷磷酸化酶(thymidine phosphorylase,TP)在乳腺癌组织中的表达及其和预后的关系。方法采用免疫组织化学S-P法,检测72例乳腺癌病例及15例良性乳腺肿瘤组织和15例正常乳腺组织中TP的表达差异,并分析其与预后的关系。结果在72例乳腺癌组织中,有59例(81.9%)TP表达阳性,与在正常乳腺组织和在乳腺良性肿瘤组织中的表达(分别为46.7%和53.3%)差异显著。多因素Cox模型分析显示腋窝淋巴结转移、C-erb-B2表达和治疗方式为影响预后的独立因素。在行含5-FU方案化疗的乳腺癌亚群中进行生存分析,TP阳性组与TP阴性组的五年总生存率差异有显著性。结论TP在乳腺癌中高表达,明显高于乳腺良性肿瘤和正常乳腺组织表达量。在以5-FU为基础的乳腺癌联合化疗中TP阳性组预后较TP阴性组预后为佳,而多因素Cox模型分析则显示TP表达并非影响预后的独立因素     

乳腺良恶性病变组织中TP表达和淋巴管计数及其意义

目的研究乳腺癌和乳腺增生病变组织中胸苷磷酸化酶（TP）表达水平和微淋巴管计数，探讨其临床病理意义及其相互关系。方法45例乳腺癌和15例乳腺小叶增生手术切除标本常规制作石蜡包埋切片，TP和淋巴管染色方法均为sP免疫组化法。结果乳腺癌组织中TP表达阳性率和D2—40标记淋巴管计数明显高于乳腺小叶增生（P〈O．05或P〈O．01）；乳腺导管内癌、组织学分级Ⅰ级和无淋巴结转移病例TP表达阳性率及淋巴管计数均明显低于浸润性导管癌、组织学分级Ⅱ级或Ⅲ级及淋巴结转移病例（P〈O．05或P〈O．01）；TP阳性表达乳腺癌淋巴管计数明显高于阴性表达者。结论TP和淋巴管计数均为反映乳腺癌进展、生物学行为、转移状态及预后的重要标记物，乳腺癌组织中分泌的TP可能促进淋巴管生成。     

胸苷磷酸化酶及血管内皮生长因子在胃腺癌组织中的表达及其临床意义

目的 检测胸苷磷酸化酶(TP)及血管内皮生长因子(VEGF)在胃腺癌组织中的表达及其与患者年龄、性别、肿瘤大小、分化程度、浸润深度及淋巴结转移的关系,分析TP、VEGF的表达及其临床意义.方法 采用免疫组织化学EnVision TM法检测125例胃癌组织中TP、VEGF的表达,以30例肿瘤切缘正常胃黏膜组织作为对照.结...     

膀胱尿路上皮癌中胸苷磷酸化酶的表达及其与微血管密度的关系

目的 研究胸苷磷酸化酶(TP)在膀胱尿路上皮癌(BUC)中的表达,探讨 TP 癌组织血管生成的关系.方法 采用免疫组化 SP 法,检测 48 例膀胱尿路上皮癌及 8 例正常膀胱黏膜组织中 TP 的表达和微血管密度(MVD).结果 ①随肿瘤分期、分级的增加,TP 的表达和 MVD 值显著增加(均P<0.05);② MVD 值增加同 TP 高表达显著相关(P<0.01).结论 TP 在膀胱尿路上皮癌中过度表达,并对膀胱尿路上皮癌的血管生成有明显的促进作用.     

基于胶体金检测方法的蛋白芯片体系的建立

目的 构建一个检测尿液中HCG抗原的蛋白质芯片初级模型;方法 在硝酸纤维素膜上包被HCG单克隆抗体(抗a-HCG),加尿样后,标本中HCG抗原(标准品)与硝酸纤维素膜的抗体特异结合,再加入胶体金标记的单克隆抗体(抗á-HCG),使其特异结合,完成对标本中抗原的染色.最后应用芯片扫描仪对光学信号的灰度值进行分析,从而绘制出标本中不同浓度的HCG对光学信号灰度值的标准曲线;结果 与现有方法 相比,该方法将检测的最低浓度降至25 mIU/ml,具有良好的梯度、线性关系和重复性.结论 该方法 是一种快速、简便、有较强操作性的检测HCG的方法 .     

乳腺癌中胸苷磷酸化酶、血管内皮生长因子-D、血管内皮生长受体-3的表达与淋巴管关系的研究

目的探讨乳腺癌中胸苷磷酸化酶（TP）、血管内皮生长因子-D（VEGF—D）、血管内皮生长受体-3（VEGFR-3）的表达及与淋巴管密度,分析其与乳腺癌临床生物学行为及预后的关系。方法免疫组织化学sP法检测37例乳腺癌及30例正常乳腺组织中TP、VEGF—D、VEGFR-3的表达。结果乳腺癌中TP、VEGF—D、VEGFR-3的阳性表达高于正常乳腺组织（P〈0．05或P〈0．01）;无淋巴结转移病例TP、VEGF—D、VEGFR-3表达阳性率及淋巴管计数均明显低于淋巴结转移组（P〈0．05或P〈0．01）,组织学分级I级病例中TP、VEGF—D、VEGFR-3表达阳性率及淋巴管计数均明显低于组织学分级Ⅱ级或Ⅲ级病例（P〈0．05）。结论TP、VEGF—D、VEGFR-3均为反映乳腺癌进展、生物学行为、转移及预后的重要标记物,乳腺癌组织中TP、VEGF—D、VEGFR-3表达升高与乳腺癌的转移及预后有关。     

多西他赛对乳腺癌细胞中TP酶的调节及其与化疗敏感性的研究

目的:探讨多西他赛对乳腺癌细胞中胸苷磷酸化酶(TP酶)的调节作用及其与化疗敏感性的关系.方法:应用多西他赛诱导乳腺癌细胞中的TP酶,酶联免疫吸附法(ELISA)检测肿瘤组织中TP酶蛋白水平,采用MTT法检测药物敏感性变化.结果:乳腺癌细胞株MCF-7中TP酶含量为(30.1±1.4) μg/g,乳腺癌耐药株MCF/ADR的TP酶含量为(18.8±0.4) μg/g.多西他赛能上调MCF-7和MCF/ADR中TP酶表达,且具有时间、剂量双重依赖性.耐药株中TP酶上调最高达(30.0±1.2) μg/L,未能达到非耐药细胞株水平.MCF-7细胞中TP酶上调1.35倍,对氟铁龙的敏感性提高了2.06倍,有统计学意义.结论:多西他赛能上调乳腺癌细胞TP酶,呈剂量-时间依赖性.     

介入化疗前后宫颈鳞癌组织TS和TP表达及意义

目的探讨肿瘤细胞相关生长因子胸苷酸合酶(TS)和胸苷磷酸化酶(TP)在动脉介入化疗栓塞前后宫颈鳞癌组织中表达的变化及临床意义。方法采用免疫组织化学方法分别检测介入化疗前后40例宫颈鳞癌组织及20例正常宫颈组织中TS、TP表达,并分析介入化疗前后TS、TP表达与临床有效性的关系。结果介入化疗后宫颈鳞癌组织中TS、TP的表达较介入化疗前显著下降(χ2=4.377、7.200,P<0.05);TS、TP在介入化疗前后的表达变化与化疗疗效呈负相关(r=-0.500、-0.449,P<0.05)。结论 TS、TP的表达变化与宫颈鳞癌的发生发展密切相关,对于临床指导治疗以及判断预后有一定的价值。     

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.