增殖细胞核抗原在涎腺肿瘤中的表达和意义

应用增殖细胞核抗原（ｐｒｏｌｉｆｅｒａｔｉｎｇｃｅｌｎｕｃｌｅａｒａｎｔｉｇｅｎ，ＰＣＮＡ）单克隆抗体ＰＣ１０，以Ｓ－Ｐ免疫组织化学染色方法观察分析ＰＣＮＡ在涎腺混合瘤、混合瘤细胞生长活跃型、恶性混合瘤、粘液表皮样癌中的表达分布情况。评价不同组织类型的涎腺肿瘤的增殖潜能及同一肿瘤组织中不同细胞成分的增殖活性。结果表明：恶性混合瘤有较高的ＰＣＮＡ增殖指数，与混合瘤细胞生长活跃型及混合瘤相比均有极显著性差异（Ｐ＜０．０１）；低分化粘液表皮样癌与高分化型相比有极显著性差异（Ｐ＜０．０１）。结论：ＰＣＮＡ是肿瘤细胞增殖的有效标记物；可作为恶性混合瘤的诊断指标；ＰＣＮＡ增殖指数可作为粘液表皮样癌组织学分级的重要参数。     

星形细胞瘤增殖活性表达的诊断意义

目的：探讨星形细胞瘤的增殖活性与组织学分级间的关系。方法：应用免疫组化技术对５４例脑星形细胞瘤增殖细胞核抗原（ＰＣＮＡ）和核仁组成区相关嗜银蛋白（ＡｇＮＯＲ）进行定量分析，结果：ＰＣＮＡ标记指数阳性率对照组与各组间差异有显著性（Ｐ〈０．０１）；ＡｇＮＯＲ平均计数及类型与组织学分级差异有显著性（Ｐ〈０．０１）。结论：ＡｇＮＯＲ，ＰＣＮＡ检测均能反映脑星形细胞瘤的恶性程度，可做为评价估星形细胞瘤增殖活     

前列腺癌DNA倍体和AgNORS计数及PCNA表达的检测

目的 探讨前列腺癌细胞核ＤＮＡ倍体、核仁组成区嗜银蛋白（ＡｇＮＯＲＳ）计数及增殖细胞抗原（ＰＣＮＡ）阳性指数变化与癌分级及预后的方法。方法 应用计算机图像分析技术、银染色方法及免疫组化ＩＳＡＢ法，测定３０例前列腺癌病人ＮＤＡ倍体、ＡｇＮＯＲＳ计数和ＰＣＮＡ阳性指数的变化。结果 前列腺癌ＤＮＡ倍体、ＡｇＮＯＲＳ计数、ＰＣＮＡ阳性指数均明显高于前列腺增生症（ｔ＝７．２６７￣７．５０２，Ｐ〈０．０１），     

前列腺癌DNA倍体和AgNORS计数及PCNA表达的检测

目的探讨前列腺癌细胞核ＤＮＡ倍体、核仁组成区嗜银蛋白（ＡｇＮＯＲＳ）计数及增殖细胞抗原（ＰＣＮＡ）阳性指数变化与癌分级及预后的关系。②方法应用计算机图像分析技术、银染色方法及免疫组化ＬＳＡＢ法，测定３０例前列腺癌病人ＤＮＡ倍体、ＡｇＮＯＲＳ计数和ＰＣＮＡ阳性指数的变化。③结果前列腺癌ＤＮＡ倍体、ＡｇＮＯＲＳ计数、ＰＣＮＡ阳性指数均明显高于前列腺增生症（ｔ＝７．２６７～７．５０２，Ｐ＜０．０１），并且随着前列腺癌细胞分化程度降低，逐渐增加（Ｈ＝４２．５３４，ｔ＝２．１５６～６．７５６，Ｐ＜０．０５，０．０１；Ｆ＝１９４．７７１，１０５．６０５，ｑ＝１３．２１４～１５．８１３，Ｐ＜０．０１）；２年内死亡者，其ＤＮＡ倍体、ＡｇＮＯＲＳ计数、ＰＣＮＡ阳性指数明显高于存活２年以上者（ｔ＝５．２５６～７．６０８，Ｐ＜０．００１）；前列腺癌病人ＤＮＡ倍体、ＡｇＮＯＲＳ计数、ＰＣＮＡ阳性指数间均存在正相关关系（ｒ＝０．９６０～０．９６６，Ｐ＜０．００１）。④结论前列腺癌ＤＮＡ倍体、ＡｇＮＯＲＳ计数、ＰＣＮＡ阳性指数与癌细胞分化程度有关，可作为前列腺癌的预后指标     

PCNA和DNA含量在粘液表皮样癌中表达的临床意义

ＰＣＮＡ和ＤＮＡ含量在粘液表皮样癌中表达的临床意义郑天荣，许磊，张竞时，力超关键词：粘液表皮样癌；增殖细胞核抗原；ＤＮＡ粘液表皮样癌是头颈部常见的恶性肿瘤，占全部涎腺肿瘤１５．７％［１］，其生物学行为与组织学有一定的关系。增殖细胞核抗原（ＰＣＮＡ）是...     

乳腺癌雌激素受体表达与增殖细胞核抗原表达和AgNOR计数关系的研究

目的研究乳腺癌雌激素受体（ＥＲ）表达与增殖细胞核抗原（ＰＣＮＡ）表达和ＡｇＮＯＲ计数关系。方法采用ＡｇＮＯＲ染色技术和免疫组化Ｓ－Ｐ法，用抗ＥＲ单克隆抗体及抗ＰＣＮＡ单克隆抗体（ＰＣ１０），研究５０例乳腺癌ＥＲ与ＰＣＮＡ表达及ＡｇＮＯＲ计数。结果３３例乳腺癌ＥＲ阳性者与１７例ＥＲ阴性者相比，ＰＣＮＡ表达低（Ｐ＜０．０５），ＡｇＮＯＲ平均颗粒少（分别为４．９１±１．６９，６．５２±２．１３，Ｐ＜０．０１）。结论乳腺癌ＥＲ表达与ＰＣＮＡ表达及ＡｇＮＯＲ计数有相关关系，ＰＣＮＡ表达率及ＡｇＮＯＲ计数对评估乳腺癌预后有一定意义     

人喉部肿瘤PCNA表达及AgNORs计数的研究

采用免疫组化染色及银染技术，对５５例喉部病变中ＰＣＮＡ表达及ＡｇＮＯＲｓ计数进行了检测。结果显示：慢性喉炎、喉乳头状瘤及喉癌的ＰＣＮＡ指数分别为１５０１％、２６３８％和４８０６％，组间两两比较有显著差异（Ｐ＜０００１）。ＡｇＮＯＲｓ计数分别为２６２，３３４和４８８，组间两两比较有明显差异（Ｐ＜００１）。高、中、低分化鳞癌的ＰＣＮＡ指数组间两两比较有显著差异（Ｐ＜０００１）；ＰＣＮＡ指数与ＡｇＮＯＲｓ计数间未见相关性。结果提示：ＰＣＮＡ表达与ＡｇＮＯＲｓ计数在喉不同病变间存在明显差异，对此两项指标的检测有助于了解喉良、恶性肿瘤的细胞增殖状态，在喉良、恶性肿瘤鉴别及恶性分级上有一定价值     

大肠癌旁粘膜细胞的PCNA和AgNORs表达观察

用增殖细胞核抗原（ＰＣＮＡ）和核仁组成区嗜银蛋白（ＡｇＮＯＲｓ）对３５例大肠癌旁粘膜进行细胞增殖表达与观察。结果表明：癌旁粘膜的ＰＣＮＡ标记指数增多，标记增强，排列紊乱。ＡｇＮＯＲｓ在癌旁粘膜中，颗粒增多、增大，形态多样，０￣１ｃｍ和２￣３ｃｍ组的标记指数与４￣５ｃｍ组的标记指数相比较，有显著或非常显著差异（Ｐ〈０．０５或Ｐ〈０．０１）。在ＤｕｋｅＡ、Ｂ期中，细胞标记指数增高增强，与癌的发生和患者     

增殖细胞核抗原表达与AgNORs图像分析在涎腺粘液表皮样癌中的研究

目的:研究涎腺粘液表皮样癌增殖细胞核抗原(PCNA)表达、AgNORs 图像分析与其组织学分级及预后的关系.方法:应用免疫组化S-P法及AgNORs图像分析,检测59例涎腺粘液表皮样癌和10例正常涎腺组织.结果:PCNA增殖指数(PI)与AgNORs数/核存在明显的相关性(r=0.883 1,P<0.01),二者均与涎腺粘液表皮样癌的分级有关,并随癌分化程度的增高而减小,术后存活5年以内者二者明显大于5年以上者(P<0.01).结论:PCNA的表达和AgNORs图像分析有助于涎腺粘液表皮样癌的分级和预后的判断.     

非霍奇金淋巴瘤细胞增殖活性和组织学恶性程度及预后的关系

１３１例非霍奇金淋巴瘤（ＮＨＬ）按国际工作分类分低、中、高度恶性（ＬＧ、ＭＧ、ＨＧ）３组。对ＮＨＬ和１４例反应性增生淋巴组织（ＲＬＨ）作核分裂计数（ＭＦ），银染核仁组成区（ＡｇＮＯＲｓ）计数，并用ＭＢＣ法检测部分病例的增殖细胞核抗原（ＰＣＮＡ）和Ｋｉ＿６７抗原。ＭＦ、ＡｇＮＯＲｓ、ＰＣＮＡ及Ｋｉ＿６７检测结果有较好相关性（ｒ值０．６１２，Ｐ＜０．０１），均和ＮＨＬ恶性度呈正相关，ＬＧ、ＭＧ、ＨＧ及ＲＬＨ组间有显著性差异（Ｐ＜０．０１，但ＬＧ和ＲＬＨ组Ｐ＞０．０５），表明细胞增殖活性的检测有助于了解ＮＨＬ恶性度，但不能区分ＬＧ和ＲＬＨ。ＭＧ中弥漫小裂细胞型（ＤＳＣ）细胞增殖活性低于同组其它类型（Ｐ＜０．０５），但与ＬＧ无显著性差异（Ｐ＞０．０５），预后相对较好，拟属ＬＧ。ＭＦ、ＡｇＮＯＲｓ和ＰＣＮＡ值越高，生存期越短，表明细胞增殖活性有助于预测ＮＨＬ预后。ＭＦ和ＡｇＮＯＲｓ经济易行；Ｋｉ６７全面反映增殖细胞的数量，仅用于冰冻切片；ＰＣＮＡ可用于石蜡切片，便于回顾性研究。     

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.