非小细胞肺癌组织中PTEN、P53蛋白及微血管密度检测

目的:检测非小细胞肺癌(NSCLC)组织中微血管密度(MVD)、PTEN、P53的表达.方法:采用免疫组化SP法分别检测75例NSCLC组织中PTEN、P53的表达及MVD.75例NSCLC患者中男55例,女20例;鳞癌50例,腺癌25例;高分化18例,中分化34例,低分化23例;Ⅰ Ⅱ期50例,Ⅲ Ⅳ期25例;有淋巴结转移45例,无淋巴结转移30例.结果:肺腺癌组织MVD高于鳞癌组织,Ⅲ～Ⅳ期肺癌组织中MVD高于Ⅰ～Ⅱ期肺癌组织,有淋巴结转移肺癌组织中MVD高于无淋巴结转移者(P均＜0.05);PTEN阳性肺癌组织中MVD低于PTEN阴性者,P53阳性组肺癌组织中MVD高于P53阴性组(P均＜0.05).结论:NSCLC组织中PTEN表达的减低、突变型P53表达的升高可促使新生血管生成,MVD增加,提示预后不良.     

非小细胞肺癌组织中cFLIP和P53蛋白的表达

目的探讨非小细胞肺癌（NSCLC）组织中cFLIP、P53蛋白的表达及意义。方法采用免疫组化方法检测56例NSCLC组织和16例肺良性病变中cFLIP、P53蛋白表达情况，分析二者在肺癌组织学分型、分化程度、临床分期和淋巴结转移方面表达差异及其相关性。结果56例NSCLC标本中cFLIP和P53阳性表达率分别是58．9％（33／56）、62．5％（35／56），肺良性病变组织标本中阳性率分剐是18．75％（3／16）和0％。cFLIP和P53在Ⅰ、Ⅱ期、无淋巴结转移组中的表达分别低于Ⅲ、Ⅳ期和淋巴结转移组，而在病理组织学分型和不同分化组间无统计学意义。cFLIP和P53在肺癌组织中的表达呈正相关（r=0．328，P〈0．05）。结论cFLIP和P53可以作为肺癌预后的评价指标，P53对cFLIP的表达可能有调控作用。     

非小细胞肺癌组织中VEGF和Bax的表达及意义

目的：观察非小细胞肺癌（NSCLC）中血管内皮生长因子（VEGF）和Bax的表达,并探讨其临床应用价值。方法收集该院NSCLC患者肺组织石蜡标本80例（NSCLC组）及良性病变病灶旁正常肺组织石蜡标本20例（对照组）,采用Western blot和免疫组织化学染色（SP）法测定NSCLC组织中VEGF和Bax的表达,并探讨二者与NSCLC病理类型、TNM 分期及淋巴结转移的相关性。结果 NSCLC组中VEGF阳性表达显著高于对照组,Ⅲ～Ⅳ期VEGF阴性表达高于Ⅰ～Ⅱ期,有淋巴结转移组织中的VEGF阳性表达高于无淋巴结转移组织,差异均有统计学意义（P＜0．05）;VEGF的表达与腺癌、鳞癌无相关性（P＞0．05）。NSCLC组中Bax表达低于对照组,Ⅲ～Ⅳ期Bax阳性表达低于Ⅰ～Ⅱ期,有淋巴结转移组织中Bax阳性表达低于无淋巴结转移组织,差异均有统计学意义（P＜0．05）;Bax的表达与腺癌、鳞癌无相关性（P＞0．05）。NSCLC中VEGF和Bax的表达呈负相关。结论 VEGF的表达在NSCLC中起着促进作用,并与Bax表达呈负相关,二者的表达可为NSCLC的诊断及预后提供判断依据。     

Bmi-1蛋白在肺癌组织中的表达及临床意义

目的研究原癌基因鼠类淋巴瘤滤过性病毒致癌基因（Bmi-1）在人非小细胞肺癌（NSCLC）组织中的表达,探讨Bmi-1作为新的肿瘤标志物在NSCLC临床诊断、分期及预后评估中的意义。方法应用免疫组化方法检测48例肺癌组织、29例癌旁肺组织及13例肺良性病变组织中Bmi-1蛋白的表达情况,并分析与NSCLC临床病理特征之间的关系。结果Bmi-1水平的表达在NSCLC组织中明显高于肺良性病变（P〈0．05）,而在肺良性病变组织及癌旁组织之间无明显差异（P〉0．05）。Bmi-1在鳞癌和腺癌组织中的表达并无明显差异（P〉0．05）;在低分化肺癌中的表达明显高于中分化和高分化肺癌（均P〈0．05）,但中分化和高分化肺癌间无明显差异（P〉0.05）;Ⅲ、Ⅳ期肺癌标本中Bmi-1阳性表达率明显高于Ⅰ、Ⅱ期肺癌,差异有统计学意义（均P〈0．05）,但Ⅰ、Ⅱ期肺癌间无明显差异（P〉0.05）;Bmi-1在有淋巴结转移的肺癌患者中阳性表达率明显高于无淋巴结转移患者（P〈0．05）。结论Bmi-1在肺癌组织中表达增高,并与肺癌的分期、淋巴结转移相关;Bmi-1可作为评估肺癌患者病变范围和预后的标志物。     

PTEN与非小细胞肺癌临床病理特征及预后的相关性

目的探讨磷酸酶基因（PTEN）与非小细胞肺癌（NSCLC）临床病理特征及预后的相关性。方法选择2007年3月～2008年6月65例NSCLC患者及23例正常肺组织石蜡标本,采用免疫组化检测各标本中PTEN蛋白表达,比较NSCLC组及正常肺组织组PTEN蛋白表达水平,分析PTEN蛋白表达与NSCLC患者性别、年龄、肿瘤大小、病理类型、淋巴结转移,病理分期及分化程度等临床病理特征的关系,并比较PTEN蛋白表达阳性及PTEN蛋白表达阴性NSCLC患者的平均生存时间和5年生存率。结果 NSCLC组PTEN蛋白阳性表达率（53.85%）显著低于正常肺组织组（91.30%）,差异有高度统计学意义（P〈0.01）;NSCLC组织中PTEN蛋白阳性表达与肿瘤分化程度、病理分期及有无淋巴结转移有关,差异有统计学意义（P〈0.05）,而与患者性别、年龄、肿瘤大小及病理类型无关,差异无统计学意义（P〉0.05）;PTEN蛋白表达阳性的NSCLC患者平均生存时间[（54.80±10.07）个月]较PTEN蛋白表达阴性患者[（27.56±7.33）个月]显著延长,差异有高度统计学意义（P〈0.01）,其5年生存率（49.32%）亦显著高于PTEN蛋白表达阴性患者（17.40%）,差异有高度统计学意义（P〈0.01）。结论 PTEN蛋白在NSCLC组织中出现表达缺失,恶性程度越高、病理晚期（Ⅲ＋Ⅳ期）及发生淋巴结转移的NSCLC组织PTEN蛋白表达越少,其预后越差。     

喉鳞状细胞癌中PTEN基因mRNA的表达及其临床意义

目的 探讨PTEN基因在喉鳞状细胞癌中的表达及其临床意义。方法 应用RT-PCR方法检测30例喉鳞癌组织及20例癌旁组织PTEN mRNA的表达。结果 （1）癌组织PTEN表达率明显低于癌旁组织，差异有统计学意义（P〈0．05）；（2）TNM分期Ⅰ～Ⅱ期与Ⅲ～Ⅳ期相比较，PTEN表达差异有统计学意义（P〈0．05）；（3）高中分化鳞癌与低分化鳞癌PTEN表达阳性率差异有统计学意义（P〈0．05）；（4）有淋巴结转移组和无淋巴结转移组比较，PTEN检出阳性率差异有统计学意义（P〈0、05）。结论 PTEN的表达与喉鳞癌的临床病理特征、生物学行为存在密切关系，PTEN基因可能在喉鳞癌的发生、发展中起重要作用，其表达可能成为喉鳞癌重要分子生物学指标。     

PTEN在非小细胞肺癌中的表达及意义

目的：研究抑癌基因PTEN在非小细胞肺癌（NSCLC）组织中的表达及其意义。方法：收集78例NSCLC及临床资料。采用免疫组织化学SP法检测PTEN蛋白表达情况。结果：PTEN蛋白表达阳性率在NSCLC中为57．69％（45／78），其中在鳞癌为54．00％（27／50），腺癌为64．29％（18／28）（P〉0．05）；PTEN蛋白表达阳性率随NSCLC分化程度的降低而降低，在高分化组为76．47％（13／17），中分化组为60．00％（24／40），低分化组为38．10％（8／21），低分化组与高分化组、中分化组之间比较差异均有显著性（P〈0．01，P〈0．05）；在Ⅰ、Ⅱ期者为72．92％（35／48），Ⅲ、Ⅳ期者为33．33％（10／30）（P〈0．01）；有淋巴结转移的病例为47．92％（23／48），无转移的病例为73．33％（22／30）（P＜0．05）；PTEN蛋白表达阳性者两年生存率为65．67％，表达阴性者为9．09％，两者之间差异有显著性（P〈0．01）。结论：PTEN蛋白表达阳性率的降低与NSCLC的分化程度差、TNM分期高、淋巴结转移及病人的生存期降低相关，可能作为判断预后的指标之一。     

RAGE、Hsp90AB1、TXNIP在非小细胞肺癌患者中的表达及与淋巴结转移的相关性

目的 研究晚期糖基化终末产物受体(RAGE)、热休克蛋白90AB1(Hsp90AB1)、硫氧还蛋白相互作用蛋白(TXNIP)在非小细胞肺癌(NSCLC)患者中的表达及与淋巴结转移的相关性。方法 选取55例行肺癌根治术切除的NSCLC标本(NSCLC组),选取同时期在病理科保存的正常组织标本36例(正常组)。免疫组化染色观察RAGE、Hsp90AB1的表达，实时荧光定量PCR检测TXNIP基因表达。采用受试者工作特征(ROC)曲线分析RAGE、Hsp90AB1、TXNIP对NSCLC的诊断价值。结果 正常组RAGE阳性、TXNIP基因表达高于NSCLC组鳞癌、腺癌，Hsp90AB1阳性表达低于NSCLC组鳞癌、腺癌(P<0.05)。低分化、有淋巴结转移、Ⅲ～Ⅳ期患者Hsp90AB1阳性表达高于中-高分化、无淋巴结转移、Ⅰ～Ⅱ期患者，低分化、有淋巴结转移、Ⅲ～Ⅳ期患者RAGE阳性、TXNIP基因表达低于中-高分化、无淋巴结转移、Ⅰ～Ⅱ期患者(P<0.05)。RAGE、Hsp90AB1、TXNIP三者联合对NSCLC诊断的敏感度、准确度高于三项单一检测，差异有统计学意义(P<...     

组织蛋白酶B在非小细胞肺癌组织中的表达及临床意义

目的 探讨组织蛋白酶B(CB)在非小细胞肺癌(NSCLC)中的表达情况及临床意义.方法 通过免疫组织化学SAB法检测NSCLC组织蛋白酶B在50例非小细胞肺癌标本中的表达水平.结果 Ⅲ～Ⅳ期肺癌组织组织蛋白酶B阳性表达率显著高于Ⅰ～Ⅱ期肺癌(P＜0.01);随着分化程度由高分化、中分化至低分化,组织蛋白酶B阳性表达率明显增加,差异均有显著性(P＜0.05);伴有淋巴结转移者,组织蛋白酶B阳性表达率明显高于无淋巴结转移者(P＜0.01).结论 组织蛋白酶B可作为判断非小细胞肺癌淋巴结转移潜能和预后的辅助指标.     

广西非小细胞肺癌组织中EGFR基因表达的研究

目的探讨非小细胞肺癌（NSCLC）组织中表皮生长因子受体（EGFR）的表达情况及其与临床病理、民族的关系。方法采用荧光定量PCR检测76例NSCLC患者（肺癌组）和23例癌旁组织及8例非癌肺组织（非癌组织组）EGFR的表达。结果 EGFR mRNA在肺癌组中表达量高于癌旁组织组,癌旁组织组表达量高于非癌组织组（P〈0.05）。EGFR表达与肿瘤的病理类型、性别、年龄、民族、吸烟指数无明显相关性（P〉0.05）,Ⅲ期、Ⅳ期表达量高于Ⅰ期、Ⅱ期,有淋巴结转移者高于无淋巴结转移者（P〈0.05）。结论广西NSCLC患者癌组织中EGFR呈高表达,并且其表达与肿瘤临床分期及有否淋巴结转移有关。     

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.