胸水ADA及CEA检测对结核性、恶性胸腔积液的诊断价值

目的探讨胸水腺苷脱氨酶(ADA)、癌胚抗原(CEA)检测对结核性和恶性胸腔积液的诊断价值。方法选择38例结核性胸膜炎患者作为结核组,选择35例恶性胸腔积液患者作为恶性胸腔积液组,分别检测两组患者胸腔积液ADA及CEA表达情况。结果结核组胸腔积液ADA的表达明显高于恶性胸腔积液组;而恶性胸腔积液组CEA表达明显高于结核性胸膜炎组,差异有显著性(P<0.01)。结论胸水ADA及CEA检测对结核性胸膜炎与恶性胸腔积液的诊断和鉴别诊断具有重要意义。     

超敏C反应蛋白测定对胸腔积液性质的鉴别作用

目的:探讨胸腔积液中超敏C反应蛋白(CRP)测定在结核性胸膜炎和癌性胸腔积液中的鉴别诊断价值.方法:对54例结核性和恶性胸腔积液患者胸腔积液中超敏C反应蛋白活性浓度进行测定.结果:结核性胸液组胸腔积液超敏CRP浓度高于恶性胸液组(P＜0.001).结论:胸腔积液超敏C反应蛋白(CRP)活性测定可用于结核性和癌性胸腔积液的鉴别.     

胸水腺苷脱氨酶乳酸脱氢酶癌胚抗原对结核性胸膜炎和癌性胸腔积液的鉴别诊断价值探讨

目的：探讨胸腔积液中腺苷脱氨酶（ADA）、乳酸脱氢酶（LDH）、癌胚抗原（CEA）对结核性胸膜炎和癌性胸腔积液的鉴别诊断价值。方法：检测所有胸腔积液患者胸液ADA、LDH、CEA ,分析52例已确诊为结核性胸膜炎（结核组）及54例癌性胸腔积液（恶性组）患者胸液ADA、LDH、CEA水平并进行比较。结果：结核组胸水ADA高于恶性组（P＜0．05）,CEA低于恶性组（P＜0．01）,差异非常显著。两组患者胸水LDH水平无明显差异。结论：胸水ADA、CEA对结核性胸膜炎和癌性胸腔积液的鉴别诊断有重要价值,LDH不能单独作为两者鉴别诊断的依据。     

结核性与恶性胸腔积液LAM—IgG抗体水平的比较与临床分析

目的检测结核性、恶性胸腔积液LAM-IgG抗体水平,探讨结核性与恶性胸腔积液LAM-IgG抗体水平在鉴别诊断中的意义。方法①采用三明博峰生物科技有限公司生产的金标免疫渗滤试剂,对89例结核性胸腔积液和30例恶性胸腔积液中LAM-IgG抗体水平进行检查。②两种胸水作涂片抗酸染色。结果结核组抗酸染色和金标免疫检测阳性率分别为56.2%和34.8%。金标免疫检测明显高于抗酸染色。恶性胸水组抗酸染色和金标免疫检测无1例阳性。结果金标免疫检测用于结核性胸水的诊断和鉴别诊断特异性、敏感性高于细菌学方法。可以作为结核性胸膜炎诊断的重要参考指标。     

不同抗原酶联免疫斑点检测技术对结核性胸膜炎辅助诊断价值的比较

目的 探讨结核分枝杆菌不同抗原的酶联免疫斑点检测技术(ELISPOT)对结核性胸膜炎的辅助诊断价值.方法 分离55例结核性胸膜炎患者和43例恶性胸腔积液患者的胸腔积液单个核细胞(PEMCs),经早期分泌抗原靶6 kD(ESAT-6)、培养滤液蛋白10 kD (CFP-10)、ESAT-6/CFP-10融合蛋白(E/C)...     

结核分枝杆菌特异基因MPT64-Rv1985c融合蛋白的免疫诊断价值研究

目的表达和纯化结核分枝杆菌特异蛋白MPT64、Rv1985c及其融合蛋白MPT64-Rv1985c,探讨3种抗原在结核病免疫诊断中的价值。方法通过PCR获得基因MPT64、Rv1985c及其融合基因,并克隆到pET32a(+)表达载体,转化E.coli BL21(DE3),经IPTG诱导表达后用镍柱进行纯化,再用SDS-PAGE及Western blot方法检测并鉴定目的产物。采用ELISA方法检测3种抗原在血清及胸腔积液样本中的结核病诊断效率。结果 3种目的蛋白均以包涵体形式表达。经过纯化及复性获得纯度较高的可溶性蛋白。血清及胸腔积液样本中特异性IgG抗体检测结果显示,融合蛋白MPT64-Rv1985c在诊断肺结核、肺外结核的敏感性为87.1%和88.9%,特异性为75.6%;诊断结核性胸膜炎的敏感性为91.2%,特异性为84.6%,敏感性较单一抗原MPT64及Rv1985c有显著提高(P﹤0.05)。结论融合蛋白MPT64-Rv1985c诊断效果显著高于单一抗原,在结核病诊断中具有重要的研究价值。     

酶联免疫法检测胸液中结核抗体的诊断意义

用酶联免疫吸附试验(ELISA)方法检测结核性和恶性胸腔积液患者胸液中抗PPD—IgG抗体,探讨其诊断和鉴别诊断意义。一、材料和方法:结核性胸膜炎(结胸)组51例,诊断依据临床、X线、胸液常规生化检查、OT皮试阳性、抗痨治疗有效。恶性胸腔积液(恶胸)组32例作对照,依据临床、X线检查和胸液癌细胞阳性确诊为肺癌胸膜转移。两组均在化疗前胸穿收集胸液标本低温保存。用人型PPD作包被抗原,胸液1:10稀释,采用常规ELISA微量间接法测定抗体水平(光度OD)。以对照组OD均值+2个标准差为阳性标准。二、结果:结核胸组和恶胸组的OD均值     

三种方法联合检测对结核性胸膜炎的诊断价值

目的 探讨胸水和血清ADA (腺苷脱氨酶)联合胸水抗结核抗体检测对结核性胸水的诊断价值.方法 对40例结核性胸腔积液和32例恶性胸腔积液患者血清ADA和胸水ADA以及胸水中抗结核抗体IgG进行检测.结果 结核性胸腔积液抗结核抗体TB-Ab阳性率为65%,胸水ADA>45U/L者34例,阳性率85%,显著高于恶性胸腔积液组.差异具有显著性(P<0.05).90%结核性胸膜炎患者胸水ADA/血清ADA比值>1.0.联合三种检测法敏感性及特异性可高达97.%和96.88%.结论 胸腔积液ADA水平和抗结核抗体检测联合胸水ADA/血清ADA比值的检测,对结核性胸膜炎的诊断有重要的临床价值,较单一测定胸水ADA可显著提高结核性胸膜炎的诊断率.     

基于胸腔镜病理学的Xper技术联合胸腔积液ADA、LDH诊断结核性胸膜炎的价值

目的 探讨结核分枝杆菌/N福平耐药实时荧光定量核酸扩增检测体系(Gene XpertMTB/RIF)联合胸腔积液中腺苷脱氨酶(ADA)、乳酸脱氢酶(LDH)检测对于诊断结核性胸膜炎的价值。方法 选取我院胸外科经胸腔镜取活组织病理学检查证实为结核性胸膜炎的胸腔积液患者87例作为结核组、66例肺部肿瘤导致胸腔积液的患者作为肿瘤组;对比二组胸腔积液中LDH、ADA水平,并对二组胸膜组织进行Gene Xpert MTB/RIF检测,以病理学结果作为诊断金标准,分析三项诊断方法单用或联合应用时诊断结核性胸膜炎的价值。结果 结核组的胸水ADA、Gene XpertMTB/RIF检测CT值高于肿瘤组,差异具有统计学意义(P<0.05);结核组的胸水LDH低于肿瘤组,差异具有统计学意义(P<0.05);ADA单独应用鉴别诊断结核性胸膜炎与癌性胸膜炎的灵敏度为43.68%、特异度为62.12%;LDH单独应用鉴别诊断结核性胸膜炎与癌性胸膜炎的灵敏度为24.14%、特异度为42.42%;Gene XpertMTB/RIF单独应用鉴别诊断结核性胸膜炎与癌性胸膜炎的灵敏度为86.21%、特异度为9...     

噬菌体生物扩增法对老年结核性胸膜炎的诊断价值

目的:利用噬菌体生物扩增法检测胸腔积液标本,评价其对老年结核性胸膜炎的诊断价值。方法:对住院老年胸腔积液患者中结核性胸膜炎56例(结核组)、肿瘤患者30例(癌性组)的胸腔积液应用噬菌体生物增法进行结核分枝杆菌检测,并与ADA浓度、结核抗体检测结果进行对比分析。结果:对于老年结核性胸膜炎患者胸腔积液PhaB结核分枝杆菌检测、ADA浓度检测、结核抗体检测,与癌性胸腔积液组患者比较,差异均有统计学意义(P<0.05)。PhaB检测结核分枝杆菌诊断符合率为66.30%;ADA浓度检测诊断符合率为79.07%;结核抗体检测诊断符合率为65.12%。三种方法联合检测使敏感性及诊断符合率提高。结论:噬菌体生物扩增法检测胸腔积液标本具有较高的特异性,对老年结核性胸膜炎的诊断及鉴别有一定的临床意义。     

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.