VEG和bFGF与血管生成及胃癌的关系

应用免疫组织化学方法检测５６例人胃癌组织中血管内皮细胞生长因子（ＶＥＧＦ）、碱性成纤维细胞生长因子（ｂＦＧＦ）和微血管密度（ＭＶＤ０表达，分析ＶＥＧＦ、ｂＦＧＦ与ＭＶＤ，及其与胃癌各临床病理指标和预后间关系。发现：ＶＥＧ或ｂＦＧＦ阳性表达者ＭＶＤ值明显高于阴性者；ＶＥＧＦ、ｂＦＧＦ和ＭＶＤ与胃癌浸润深度，淋巴结转移和远处转移有关；ＶＥＧＦ或ｂＦＧＦ表达阳性或ＭＶＤ≥４３的胃癌患者５年生存率较低。表     

微血管密度和血管内皮生长因子的表达在胃癌转移中的意义

探讨微血管密度及血管内皮生长因子在胃癌淋巴结转移中的作用。方法：应用抗第Ⅷ因子相 关抗原抗体,抗ＶＥＧＥ抗体行免疫组化ＩＳＡＢ法,对９３例原发性胃癌组织中的微血管密度（ＭＶＤ）和血管内皮生长 因子（ＶＥＧＦ）的表达进行研究。结果：伴有淋巴结转移组的胃癌组织中ＭＶＤ、ＶＥＧＦ指数明显高于不伴有淋巴结 转移组（Ｐ＜０．０１）,而与其它临床病理学指标无关。结论：提示胃癌组织中微血管密度和血管内皮生长因子的表 达与胃癌淋巴结转移关系密切,微血管密度高的胃癌可能预后不良。     

乳癌VEGF表达、微血管密度与腋窝淋巴结转移的关系

对 ３５ 例乳癌石蜡切片分别用抗血管内皮生长因子（ Ｖ Ｅ Ｇ Ｆ）和抗八因子相关抗原（Ⅷ Ｆ Ｒ Ａｇ）单抗进行免疫组化染色,以探讨 Ｖ Ｅ Ｇ Ｆ 的表达水平、微血管密度（ Ｍ Ｖ Ｄ）及腋窝淋巴结转移之间的关系。结果显示,腋窝淋巴结有转移者 Ｖ Ｅ Ｇ Ｆ 阳性率和 Ｍ Ｖ Ｄ 分别为 ７７７８％ 和 ９３８２±２１７６,无转移者为１７６８％ 和 ４３５０±１１０３,二者呈正相关。 Ｖ Ｅ Ｇ Ｆ 表达和 Ｍ Ｖ Ｄ 不仅可作为乳癌预后指标,而且通过抑制 Ｖ Ｅ Ｇ Ｆ 表达和抗血管生成治疗可防止肿瘤复发和转移。对选择其他疗法亦有参考价值。     

血管内皮生长因子在原发性肝癌生长和转移中的作用

目的：探讨血管内皮生长因子（ＶＥＧＦ）在原发性肝癌生长和转移中的作用。方法：免疫组化法检测２９例肝癌组织中ＶＥＧＦ蛋白的表达及微血管密度（ＭＶＤ）。结果：肝癌组织中ＶＥＧＦ阳性表达率为８２．８％,转移组ＶＥＧＦ阳性表达例数以及ＭＶＤ显著多于元转移组（Ｐ〈０．０１）;肿瘤包膜不完整和无包膜组ＶＥＧＦ阳性表达例数显著多于包膜完整组（Ｐ〈０．０１）;而且ＶＥＧＦ表达强度与ＭＶＤ间关系密切;但肿瘤直径≥５     

血管内皮生长因子 C在胃癌组织中的表达及其对肿瘤淋巴转移的影响

目的：检测血管内皮生长因子Ｃ（ＶＥＧＦ－Ｃ）在胃癌组织中的表达及其与肿瘤淋巴转移的关系。方法：采用免疫组化ＳＡＢＣ法检测５６例胃癌组织中ＶＥＧＦ－Ｃ的表达及定位。结果：５６例中１８例ＶＥＧＦ－Ｃ染色阳性，阳性率３２％，阳性物质主要位于肿瘤细胞胞浆内，在有淋巴结转移的胃癌组织中明显高于无淋巴结转移组织，低分化胃癌中的表达明显高于高、中分化胃癌。结论：ＶＥＧＦＣ的表达与胃癌肿瘤细胞的淋巴转移密切相关。     

血管内皮生长因子在鼻咽癌中的表达及意义

目的 探讨血管内皮因子（ＶＥＧＦ）与鼻咽癌发生、生长及转移的关系。方法 应用ＬＳＡＢ免疫组织化学技术检测５０例鼻咽鳞状上皮癌组织中ＶＥＧＦ的表达。结果 鼻咽鳞状上皮癌组织中ＶＥＧＦ的表达明显高于鼻咽慢性炎症组织组（Ｐ〈０．０５）,在鼻咽癌组织中,Ⅲ,Ⅳ期患者明显高于Ⅰ,Ⅱ期,而有颈部淋巴结转移组又明显高于无颈部淋巴结转移组（Ｐ〈０．０５）。结论 ＶＥＧＦ可作为判断鼻咽癌的发生、转移及预后的临床指标     

乳腺浸润癌的微血管数在癌转移中的意义

采用ＣＤ３１免疫组化染色检测４８例乳腺浸润癌间质的微血管数及癌细胞ＣＤ４４Ｖ６，ＥＧＦＲ的表达。结果发现存在于远处淋巴结或脏器转移及ＣＤ４４Ｖ６，ＥＧＦＲ阳性表达的乳腺浸润癌的微血管数显著高于无转移者及ＣＤ４４Ｖ６，ＥＧＦＲ阴性者。提示乳腺浸润癌的血管新生，同时伴有肿瘤转移相关基因的激活对其转移起促进作用     

血管内皮生长因子及其受体在食管癌中的表达和临床意义

为探讨食管癌血管内皮生长因子（ＶＥＧＦ）及其受体（Ｆｌｔ、ＫＤＲ）、血管生成与食管癌临床病理特点的关系,采用免疫组织化学技术,检测了５０例人食管癌组织ＶＥＧＦ、Ｆｌｔ、ＫＤＲ蛋白表达和微血管密度（ＭＶＤ）。分析ＶＥＧＦ、Ｆｌｔ、ＫＤＲ和ＭＶＤ及其与食管癌组织学分型、浸润深度、生长方式、淋巴结转移和预后的关系。结果显示：ＶＥＧＦ及Ｆｌｔ、ＫＤＲ阳性者ＭＶＤ值显著高于阴性者,ＶＥＧＦ、Ｆｌｔ、ＫＤＲ及ＭＶＤ与食管癌浸润深度、淋巴结转移密切相关,并最终决定患者的预后。而与组织学分型、生长方式无关。因此认为：ＶＥＧＦ、Ｆｌｔ、ＫＤＲ与食管癌的血管生成密切相关,对其生长和浸润转移起促进作用,ＶＥＧＦ、Ｆｌｔ、ＫＤＲ可以作为反映食管癌生物学行为的指标之一。     

乳腺浸润癌的微血管数在癌转移中的意义

采用ＣＤ３１免疫组化染色检测４８例乳腺浸润癌间质的微血管数及癌细胞ＣＤ４４Ｖ６，ＥＧＦＲ的表达。结果发现存在于远处淋巴结或脏器转移及ＣＤ４４Ｖ６，ＥＧＦＲ阳性表达的乳腺浸润癌的微血管数显著高于无转移者及ＣＤ４４Ｖ６，ＥＧＦＲ阴性者。提示乳腺浸润癌的血管新生，同时伴有肿瘤转移相关基因的激活对其转移起促进作用。     

食管癌组织中VECF表达对患者预后的影响

目的 探讨食管鳞状细胞癌组织中血管内皮生长因子（ＶＥＧＦ）的表达对肿瘤血管的促增殖作用和二者对肿瘤转移，患者预后的影响。方法 应用组织化学法，兔抗人第Ⅷ因子相关抗原抗体标记血管内皮细胞；抗ＶＥＧＦ多克隆抗体标记ＶＥＧＦ。结果 这鳞状细胞癌中ＶＥＧＦ表达为５８．９％。正常食管组织中无表达；ＶＥＧＦ表达阳性的肿瘤血管密度「（５９．４３±１４．１１）个／ｍｍ＾２」明显高于阴性组「４６．６７±１０．２７）     

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.