AR与cyclinD1、p16在喉鳞癌发病中作用及其相互关系

目的：探讨雄激素受体（ＡＲ）与细胞周期蛋白Ｄ１（ｃｙｃｌｉｎＤ１）、ｐ１６基因三者在喉鳞癌中的作用及相互关系。　方法：　应用ＡＲ、ｃｙｃｌｉｎＤ１、ｐ１６单克隆抗体，通过免疫组化Ｓ－Ｐ法检测４４例喉鳞癌和１１例癌旁组织中的ＡＲ、ｃｙｃｌｉｎＤ１、ｐ１６的表达。　结果：　ＡＲ、ｃｙｃｌｉｎＤ１、ｐ１６在喉鳞癌上皮组织中阳性表达分别是６８．２％，５６．８％，５２．３％，与癌旁正常组织对照，两者差异有显著性（Ｐ　＜０．０５），ＡＲ与ｃｙｃｌｉｎＤ１的表达呈正相关，同样ｃｙｃｌｉｎＤ１与ｐ１６的表达呈正相关，而ＡＲ与ｐ１６之间无相关性，同时发现ＡＲ、ｃｙｃｌｉｎＤ１、ｐ１６的阳性表达与临床及病理分级无相关性（Ｐ　＞０．０５）。结论：ＡＲ、ｃｙｃｌｉｎＤ１、ｐ１６蛋白阳性表达在喉鳞癌的发生和发展中起重要作用。ＡＲ在喉鳞癌上皮细胞的阳性表达可作为诊断喉鳞癌的辅助指标。     

食管鳞癌CyclinD1p16 cdk4表达与临床病理相关性研究

目的 研究食管鳞癌中细胞周期调控基因ＣｙｃｌｉｎＤ１，ｐ１６，ｃｄｋ４表达。结合与临床病理关系，探讨其在食管癌发生发展中的作用。方法 用免疫组化染色方法测定４７例食管癌标本，１７例邻近组织及２０例正常食管组织的ＣｙｃｌｉｎＤ１，ｐ１６，ｃｄｋ４的表达。结果 食管鳞癌ｐ１６阳性表达４４．７％，ＣｙｃｌｉｎＤ１５５．３％，ｃｄｋ４５９．６％，其中ＣｙｃｌｉｎＤ１表达明显高于癌旁及正常组织中，ｐ１６阳性     

胃癌组织中p16和CyclinD1基因的表达及动态观察

目的：研究ｐ１６、ＣｙｃｌｉｎＤ１在胃癌组织中的表达，探讨其与胃癌发生、发展的关系。方法：采用ｍＲＮＡ原位杂交技术检测ｐ１６、ＣｙｃｌｉｎＤ１在不同胃粘膜病变中的表达。结果：ｐ１６在正常胃粘膜、萎缩性胃炎、不典型增生及胃癌组织中的阳性表达率渐降低，ＣｙｃｌｉｎＤ１的阳性表达率依次递增；ｐ１６的阳性表达率与肿瘤恶性程度呈负相关，ＣｙｃｌｉｎＤ１与癌分化无明显相关性；有淋巴结转移及死亡的胃癌患者ｐ１６阳性表达率明显降低，而ＣｙｃｌｉｎＤ１则明显升高。在８０例胃癌组织中，ｐ１６与ＣｙｃｌｉｎＤ１有交叉共存现象２４例，占３０％；相关分析显示，　ｐ１６、ＣｙｃｌｉｎＤ１的阳性表达率呈显著负相关。结论：ｐ１６、ＣｙｃｌｉｎＤ１与胃癌的形成密切相关；两者可单独或协同促进胃癌的发生、发展。     

骨良恶性肿瘤cyclin D1和cdk4的表达及其意义

目的 研究骨软骨瘤、骨软骨肉瘤和骨肉瘤组织中ｃｙｃｌｉｎＤ１和ｃｄｋ４表达及其意义。方法 采用石蜡包埋切片ＡＢＣ免疫组化法．结果 骨软骨瘤ｃｙｃｌｉｎＤ１（３／１６）和ｃｄｋ４（４／１６）阳性率明显低于骨软骨肉瘤（９／１３，９／１３），和骨肉瘤（５／６，５／６），差异有显著性；ｃｙｃｌｉｎＤ１和ｃｄｋ４表达与骨软骨瘤、骨肉瘤和骨肉瘤病理类型有一定关系，但与其发生部位无明显关系。结论：ｃｙｃｌｉｎＤ     

细胞周期素D1表达对肾母细胞瘤生长的影响

目的：研究细胞周期素 Ｄ１ （ｃｙｃｌｉｎ Ｄ１）表达对肾母细胞瘤的影响。方法：应用原位杂交技术检测 ２３例肾母细胞瘤 ｃｙｃｌｉｎ Ｄ１ 表达情况。结果：１５ 例检测到ｃｙｃｌｉｎ Ｄ１ 表达阳性细胞,表达指数 ５６％ ～４３９％ 。ｃｙｃｌｉｎ Ｄ１ 表达阳性组瘤体重量显著大于阴性组（ Ｐ＜ ００５）;ｃｙｃｌｉｎ Ｄ１ 高表达者瘤体重量明显大于低表达者（ Ｐ＜ ００５）。临床晚期标本ｃｙｃｌｉｎ Ｄ１ 表达指数明显高于早期标本（ Ｐ＜ ００５）;不同组织类型标本 ｃｙｃｌｉｎ Ｄ１ 表达指数无显著性差异（ Ｐ＞ ００５）。ｃｙｃｌｉｎ Ｄ１ 表达指数与瘤体重量呈正相关（ｒ＝ ０５３, Ｐ＜ ００５）。结论：ｃｙｃｌｉｎ Ｄ１表达与肾母细胞瘤发生发展关系密切;过度表达时,肾母细胞瘤细胞增殖周期演进快,肿瘤生长迅速,预后不良。     

皮肤鳞状细胞癌细胞周期调节因子的研究

采用免疫组化染色检测３０ 例皮肤鳞癌组织细胞周期蛋白Ｄ１（ｃｙｃｌｉｎ Ｄ１） 、细胞周期蛋白依赖性激酶４（ＣＤＫ４） ,ｐ１６ 及Ｒｂ 的表达,阳性率依次为６６－７ ％ ,５３－３ ％ ,３３－３ ％ 和３６－７ ％ ;ｃｙｃｌｉｎ Ｄ１ 及ＣＤＫ４ 于癌巢边缘细胞表达强于中央癌细胞,且其分化程度越低,阳性着色细胞越多,着色越深。提示细胞周期尤其Ｇ１ 期的正向调节因子的过度表达及负向调节因子的低表达在皮肤鳞状细胞癌的发生、发展中起重要作用。     

细胞周期素D1在结肠癌中的表达

目的 探讨细胞周期素（ｃｙｃｌｉｎ）Ｄ１与ｐ５３基因在结肠癌中的表达意义及其关系。方法 应用原位杂交技术和免疫组织化学技术检测结肠癌中ｃｙｃｌｉｎ Ｄ１基因ｍＲＮＡ和ｐ５３蛋白的表达。统计处理采用卡方检验。结果 发现结肠癌组织和癌旁组织中ｃｙｃｌｉｎ Ｄ１表达阳性率分别为６３．４％（４０／６３）及４４．４４％（２８／６３）,两者之间差异有显著性（Ｐ〈０．０５）。ｃｙｃｌｉｎ Ｄ１表达程度与癌组织分化程度及临床分期有关,差异有显著性（Ｐ〈０．０５）。ｃｙｃｌｉｎ Ｄ１表达与其他临床病理指标无关（Ｐ〉０．０５）。ｐ５３蛋白在结肠癌中阳性率为３８．０９％（２４／６３）,ｐ５３阳性的患者其ｃｙｃｌｉｎ Ｄ１的表达较之ｐ５３阴性者为高,差异有显著性（Ｐ〈０．０５）。结论 ｃｙｃｌｉｎＤ１的过表达及ｐ５３突变在结肠癌的癌变     

Cyclin D1,p16在卵巢上皮性癌发生过程中的表达及相关性

研究ＣｙｃｌｏｎＤ１．ｐ１６在卵巢上皮性癌发生过程中的表达及相关性。方法采用免疫组织化学ＳＡＢＣ法检测卵巢上皮性癌,交界性,良性卵巢肿瘤及正常卵巢组织Ｃｙｃｌｉｎ,Ｄ１,ｐ１６的表达。结论ＣｙｃｌｉｎＤ１和Ｐ１６在卵巢上皮性肿瘤癌变过程中,两者表达水平的相关性反映了癌基因了与抑癌基因相互拮抗、抑制的机制。     

鼻咽癌细胞中外源性p16表达对CDK4,Cyclin D1及pRb的影响

目的：分析外源性ｐ１６表达对ＣＤＫ４,Ｃｙｃｌｉｎ Ｄ１及ｐＲｂ的影响,探讨其抑制细胞生长的机制。方法：绘制生长曲线,比较细胞倍增时间,分析ＨＮＥ１,＃４－２及＃３－２克隆中细胞增殖状况;利用流式细胞仪分析上述细胞中细胞周期分布的改变;结合Ｗｅｓｔｅｒｎ Ｂｌｏｔ方法,分析外源性ｐ１６表达对ＣＤＫ４,Ｃｙｃｌｉｎ Ｄ１及ｐＲｂ的影响。结果：生长曲线示,ＨＮＥ－１倍增时间为２３．４ｈ,＃３－２和＃４     

基因p16及Cyclin D1在子宫内膜癌中的表达及意义

探讨抑癌基因Ｐ１６及细胞周期素Ｄ（ＣｙｃｌｉｎＤ１）在子宫内膜癌,交界性子宫内膜组织及正常子宫内膜组织中的表达规律及其与子宫内膜癌的关系。方法应用免疫组化ＳＡＢＣ法检测３８例子宫内膜癌,１９例子宫内膜增生过长及不典型增长,１０例正常子宫内膜组织中基因ｐ１６,ＣｙｃｌｉｎＤ１的表达。     

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.