胃癌组织细胞CD44v6和nm23-H1的表达及临床检测意义

为探讨 CD4 4 v6和 nm2 3- H1表达变化与胃癌临床病理学特征及淋巴结转移的关系。应用流式细胞免疫法检测 2 1例胃癌标本 CD4 4 v6和 nm2 3- H1基因产物的表达。结果显示 :胃癌合并淋巴结转移者 CD4 4 v6的表达 (0 .33±0 .15 )明显高于未合并淋巴结转移者 (0 .0 5± 0 .0 2 ,P<0 .0 5 ) ,其 nm2 3- H1的表达 (0 .11± 0 .0 6 )明显低于未合并淋巴结转移者 (0 .6 2± 0 .2 7,P<0 .0 5 )。在 2 1例胃癌中 CD4 4 v6和 nm2 3- H1基因产物表达呈显著负相关 (Spearm an相关系数 r=- 0 .6 382 ,P<0 .0 1) ,CD4 4 v6的表达与胃癌的临床病理分期 (PTNM)呈极显著的正相关 (P<0 .0 1) ,而 nm2 3-H1的表达与胃癌的临床病理分期 (PTNM)呈显著的负相关 (P<0 .0 5 )。提示 :CD4 4 v6过表达和 nm2 3- H1低表达在胃癌淋巴结转移中的关系为相对独立的联合作用 ,同时检测 CD4 4 v6和 nm2 3- H1基因产物的表达能为判断胃癌的淋巴结转移和预后提供参考依据     

乳腺癌nm23-H_1、CD44v基因蛋白表达与淋巴结转移的关系

目的研究乳腺癌组织中nm2 3 H1和CD44v基因蛋白表达量与肿瘤腋下淋巴结转移等多个临床病理特征之间的关系。方法应用流式细胞术对 6 0例乳腺癌组织中的nm2 3 H1和CD44v基因蛋白表达进行定量研究。结果nm2 3 H1基因蛋白在乳腺癌组织中表达阳性率为 2 1.7% (13/ 6 0 ) ,nm2 3 H1蛋白表达与肿瘤大小、临床分期和腋淋巴结转移呈负相关。CD44v在乳腺癌组织中表达阳性率为 6 1.7% (37/ 6 0 ) ,CD44v蛋白表达与组织学分级、肿瘤大小、临床分期和腋淋巴结转移呈正相关性。结论CD44v和nm2 3 H1基因在乳腺癌的侵袭和淋巴结转移过程中发挥正、负性调控作用 ,对判断乳腺癌预后有一定临床意义。     

胆囊癌组织中CD44v6和nm23表达的意义

【目的】研究胆囊癌组织中CD44v6、nm2 3蛋白表达的意义及两者之间的关系。【方法】用免疫组化方法检测 36例胆囊癌和 2 7例癌旁上皮组织中CD44v6和nm2 3蛋白表达。【结果】胆囊癌组织中CD44v6和nm2 3阳性率分别为 41 7%和 72 2 % ,与癌旁上皮阳性率有显著性差异 (P <0 0 1) ;CD44v6表达与胆囊癌淋巴结转移呈正相关 (P =0 0 0 2 ) ,与组织学类型、临床分期无关 (P >0 0 5 )。nm2 3表达与胆囊癌淋巴结转移、临床分期呈负相关 (P分别为 0 0 0 3和 0 0 3) ,与组织学类型无关 (P >0 0 5 )。CD44v6和nm2 3蛋白表达呈负相关 (P =0 0 34)。【结论】CD44v6和nm2 3蛋白可能在胆囊癌形成、淋巴结转移和病程进展等方面起着重要作用 ,且两者呈互相拮抗关系 ,可作为判断胆囊癌侵袭和淋巴结转移的标记物。     

CD44v6和nm23-H_1的表达对大肠癌淋巴结转移的影响

目的　探讨CD44v6和nm2 3-H1基因产物表达与大肠癌淋巴结转移的关系。方法　应用SP免疫组化染色法 ,对 76例大肠癌标本进行CD44v6和nm2 3-H1基因产物测定。结果　CD44v6基因产物的高表达和nm2 3-H1基因产物的低表达与大肠癌淋巴结转移有关 (P <0 .0 1)。大肠癌CD44v6和nm2 3-H1表达无相关性 (P >0 .0 5 ) ,但CD44v6阳性表达伴nm2 3-H1阴性表达的患者发生淋巴结转移的可能性大。结论　CD44v6和nm2 3-H1与大肠癌淋巴结转移密切相关 ,两者在淋巴结转移中起协同作用 ,联合检测对判断大肠癌淋巴结转移是一个有用的指标。     

CD15mRNA、CD44v6mRNA及nm23H1mRNA在乳腺癌组织中的表达及其临床意义

目的　探讨CD15mRNA及其蛋白、CD44v6mRNA和nm2 3H1mRNA在乳腺癌组织中的表达及与乳腺癌患者预后的关系。方法　应用催化信号放大 (CSA)原位杂交和免疫组织化学方法 ,对94例乳腺癌患者的癌组织进行了CD15mRNA及其蛋白、CD44v6mRNA和nm2 3H1mRNA表达的检测。结果　CD15mRNA及其蛋白、CD44v6mRNA高表达及nm2 3H1mRNA低表达均与乳腺癌患者的组织学分级、临床分期、淋巴结转移、复发和预后密切相关。CD15mRNA和CD44v6mRNA高表达及nm2 3H1mRNA低表达患者淋巴结转移率高、生存率低。结论　CD15mRNA表达与CD44v6mRNA和nm2 3H1mRNA表达具有正、负调节的协同作用。联合检测 3个基因 ,能更准确地判断乳腺癌的转移和预后状态。     

CD15s抗原和CD44v6基因蛋白在胆管癌中的表达及其临床意义

目的　探讨CD15s抗原和CD4 4v6基因蛋白表达与胆管癌生物学行为的关系。方法　用催化信号放大免疫组化方法 ,检测 4 3例胆管癌组织中CD15s抗原和CD4 4v6基因蛋白表达 ,综合分析了CD15s和CD4 4v6表达与胆管癌临床病理因素间的关系。结果　在胆管癌组织中 ,CD15s和CD4 4v6表达阳性率分别为 6 7 4 %和 6 2 8%。CD15s和CD4 4v6表达与胆管癌的国际癌症分类法 (TNM )分期、分化程度和转移密切相关 (P <0 0 5 )。CD15s表达与CD4 4v6表达呈正相关 (r =0 4 9,P <0 0 0 5 )。结论　CD15s和CD4 4v6表达提示胆管癌生物学行为不良     

乳腺癌nm23—H1、CD44v基因蛋白表达与淋巴结转移的关系

目的 研究乳腺癌组织中nm23－H1和CD44v基因蛋白表达量与肿瘤腋下淋巴结转移等多个临床病理特征之间的关系。方法 应用流式细胞术对60例乳腺癌组织中的nm23-H1和CD44v基因蛋白表达进行定量研究。结果 nm23-H1基因蛋白在乳腺癌组织中表达阳性率为21．7％（13／60）,nm23-H1蛋白表达与肿瘤大小、临床分期和腋淋巴结转移呈负相关。CD44v在乳腺癌组织中表达阳性率为61．7％（37／60）,CD44v蛋白表达与组织学分级、肿瘤大小、临床分期和腋淋巴结转移呈正相关性。结论 CD44v和nm23-H1基因在乳腺癌的侵袭和淋巴结转移过程中发挥正、负性调控作用,对判断乳腺癌预后有一定临床意义。     

CD44v6蛋白在宫颈癌中的表达及其与预后因素的关系

目的 :了解CD44v6在宫颈上皮不典型增生、宫颈原位癌、宫颈浸润鳞癌及腺癌中的表达及其与预后因素的关系。方法 :用免疫组化法检测 10例正常宫颈上皮、15例宫颈上皮不典型增生、16例宫颈原位鳞癌、1例宫颈原位腺癌、2 7例宫颈浸润鳞癌、15例宫颈浸润腺癌中CD44v6蛋白的表达 ,实验结果以图像处理与分析系统进行半定量处理后进行统计分析。结果 :(1)着色部位主要为细胞膜 ,细胞浆不着色或着色较浅。细胞核被苏木素复染成淡蓝色。 (2 )CD44v6阳性表达正常宫颈上皮为 1/ 10 ,宫颈不典型增生为 7/ 15 ;宫颈鳞癌中原位癌为 7/ 16 ,浸润癌为2 0 / 2 7;宫颈腺癌中原位癌 1例CD44v6阴性 ;浸润癌 15例 ,CD44v6阳性表达 2 / 15。 (3)宫颈浸润鳞癌淋巴结转移阳性者CD44v6的灰度显著高于淋巴结转移阴性者 [(0 .30 8± 0 .0 2 1)vs (0 .2 73± 0 .0 31) ,P =0 .0 0 6 ]。CD44v6与宫颈鳞癌的临床分期及细胞分化程度无关。结论 :CD44v6在正常宫颈、CIN、宫颈浸润鳞癌中的阳性表达逐渐增加 ;CD44v6与宫颈鳞癌淋巴结转移相关 ;CD44v6阳性可能与宫颈腺癌的不良预后有关 ,其相关性需进一步研究。     

口腔粘膜鳞癌中C-myc和nm23-H1蛋白的表达研究

目的　研究口腔粘膜鳞癌组织中C myc和nm2 3 H1蛋白的表达及意义。方法　采用免疫组化方法检测79例口腔粘膜鳞癌组织中C myc和nm2 3 H1蛋白的表达状况。结果　口腔粘膜鳞癌组织中C myc蛋白的强阳性表达率为 6 3.3% (5 0 / 79) ,nm2 3 H1蛋白的强阳性表达率为 35 .4 % (2 8/ 79) (P <0 .0 5 )。颈淋巴结有转移者较无转移者C myc蛋白的强阳性表达率高 ,而nm2 3 H1蛋白的强阳性表达率低。结论　C myc和nm2 3 H1蛋白的表达状况与口腔粘膜鳞癌颈淋巴结转移有关。     

CD44v6、nm23-H1在卵巢癌中的表达及其临床意义的研究

目的 探讨CD44v6和nm23-H1在卵巢癌中的表达与临床病理指标的关系。方法 应用免疫组化SABC方法，对50例卵巢癌标本进行CD44v6和nm23-H1蛋白测定。结果 CD44v6高表达和nm23-H1低表达与卵巢癌淋巴结转移有关(P＜0．05)；CD44V6阳性表达伴nm23-H1阴性表达者发生淋巴转移的可能性大。结论 CD44v6和nm23-H1与卵巢癌淋巴结转移密切相关，两者在淋巴结转移中起协同作用。联合检测对判断卵巢癌淋巴结转移，估计预后是一项有用指标。     

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.