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1.
梅毒螺旋体检测方法的临床评价   总被引:3,自引:0,他引:3  
李振荣  刘迪  张捷  崔丽艳 《北京医学》2007,29(8):497-498
目的 探讨三种血清梅毒螺旋体检测方法的应用价值.方法 应用快速血浆反应素试验(RPR)、酶联免疫吸附试验(ELISA)、梅毒螺旋体明胶凝集试验(TPPA)分别检测602份标本,其中61例确诊为梅毒感染.荧光定量PCR(FQ-PCR)方法对RPR阳性标本进行检测.结果 ELISA法与TPPA法检测结果之间无显著性差异(P>0.05),二者敏感性和特异性分别为95.1%、97.8%和91.8%、96.9%;RPR与ELISA法、TPPA法之间有显著性差异(P<0.05);FQ-PCR法检测结果均为阴性.结论 ELISA法和TPPA法是较好的血清梅毒螺旋体的检测方法.FQ-PCR法检测的阳性率低.  相似文献   

2.
早期梅毒实验室检测方法的评价   总被引:4,自引:0,他引:4  
目的:评价在梅毒早期诊断中,四种梅毒血清学检测方法的比较及在临床诊断中应用价值。方法:应用快速血浆反应素试验(RPR)、梅毒螺旋体血球凝集试验(TPHA)、梅毒螺旋体明胶凝集试验(TPPA)、酶联免疫吸附试验(ELISA)检测182例血清标本。结果:RPR、TPHA、TPPA、ELISA的敏感性分别为88.3%、92.2%、94.8%、98.7%,特异性分别为85.7%、94.3%、96.2%、98.1%,其中RPR、TPHA、TPPA与灵敏性、特异性较好的ELISA比较,RPR、TPHA、TPPA的敏感性较低,差异有显著性(P<0.05),特异性方面,除TPHA、TPPA差异无显著性(P>0.05),RPR低于ELISA,差异有显著性(P<0.05);RPR滴度随治疗时间的增加而逐渐下降。结论:ELISA方法操作简单,结果判断可标准化,特异性高,敏感性高,可作为早期梅毒检测较理想的方法,RPR试验可用于梅毒治疗期间的疗效判定。  相似文献   

3.
目的:比较梅毒螺旋体抗体ELISA与RPR、TPPA试验,并对检测结果进行综合分析,选择适合采供血机构筛检梅毒的方法.方法:选用ELISA方法在无偿献血者筛检中产生的50例梅毒抗体阳性标本,分别进行梅毒螺旋体抗体酶联免疫试验(TP-ELISA)、血浆反应素环状卡片试验(RPR)以及梅毒螺旋体血球凝集试验(TPPA),将检测结果进行综合分析.结果:ELISA-1、ELISA-2、RPR法的灵敏度分别为100%、100%、44%;假阳性率分别为4%、60%、0;漏检率分别为0、0、56%.TPPA法与RPR法检测结果之间有显著性差异,TPPA法与ELISA-2法检测结果之间有显著性差异,TPPA法与ELISA-1法之间无显著性差异.结论:ELISA-1法适用于大批量的血液筛查,但此法可能会造成检测结果出现一定程度的假阳性,采用TPPA法再进行确证,有利于血液质量安全.  相似文献   

4.
目的 评价酶联免疫吸附试验(TP-ELISA)和化学发光法(TP-CLIA)、梅毒螺旋体明胶颗粒凝集试验(TPPA)和甲苯胺红不加热血清试验(TRUST)在手术和输血前梅毒螺旋体抗体检测中的应用价值,并分析不同年龄段患者梅毒螺旋体抗体阳性率.方法 用ELISA法检测7656例手术和输血前住院患者血清中的梅毒螺旋体抗体,筛查出的阳性样本再采用CLIA法、TPPA法和TRUST法进行检测;对ELISA法的检测结果(S/CO值)和CLIA的法检测结果(S/CO值)进行相关性分析;对于TPPA确诊试验阳性标本按年龄段分组,分析不同年龄段梅毒螺旋体抗体阳性率有无差异.结果 ELISA法检测出梅毒螺旋体抗体阳性标本173例,总阳性率为2.26%(173/7656);CLIA法、TPPA法和TRUST法检测梅毒螺旋体抗体阳性符合率分别为100%(173/173)、99.42%(172/173)和29.48%(51/173).相关性分析显示ELISA法和CLIA检测结果(S/CO值)呈显著正相关(r=0.711,P<0.001).梅毒螺旋体抗体阳性率随年龄增长而增高,60岁以上老年人阳性率显著高于其他人群(P<0.05).结论 ELISA法和CLIA法是手术和输血前梅毒螺旋体抗体筛查的可靠方法,但须行TPPA确诊试验;TRUST法不适用于梅毒螺旋体抗体的筛查,适宜疗效观察;梅毒螺旋体抗体阳性率随着年龄增长而增高,要慎重对待老年人梅毒试验阳性结果.  相似文献   

5.
目的:比较ELISA、TPPA和TRUST三种方法在梅毒螺旋体检测中的临床效果。方法:选取150例疑似梅毒螺旋体感染患者作为研究对象,均采用酶联免疫吸附试验(ELISA法)、梅毒螺旋体明胶颗粒凝集试验(TPPA)及甲苯胺红不加热血清试验(TRUST)法进行检测,比较三种检验方法的阳性检出率、敏感度及特异性。结果:ELISA法、TPPA法阳性检出率明显大于TRUST法(P<0.05);ELISA法、TPPA法检测敏感性、特异性及准确度高于TRUST法(P<0.05),ELISA与TPPA法敏感性和准确度比较无统计学差异(P>0.05);ELISA检测特异性明显低于TPPA检测(P<0.05)。结论:ELISA和TPPA检测方法在梅毒螺旋体检测中的临床效果均优于TRUST检测方法,而ELISA和TPPA的检验效果相差不大。  相似文献   

6.
目的:比较临床常用的3种梅毒血清学检测方法,选择最合适的筛查方法.方法:采用目前临床实验室检测梅毒最常用的梅毒螺旋体梅毒螺旋体抗体酶联免疫吸附试验(TP-ELISA)、明胶颗粒凝集试验(TPPA)、梅毒血浆快速反应素试验(RPR)3种方法对门诊和住院患者标本共4876例进行检测.结果:ELISA、TPPA和RPR检测梅毒患者的灵敏度分别为96.1%、88.3%和80.5%.3种方法阳性率中TP-ELISA法与TPPA法检测结果差异无统计学意义,而与RPR法检测结果比较差异均有统计学意义(P<0.01).结论:ELISA、TPPA两种检测方法有较高的灵敏度,RPR的灵敏度比ELISA、TPPT差.ELISA是目前梅毒血清学检测的首选方法.  相似文献   

7.
目的:ELISA法筛查梅毒抗体假阳性结果分析及应对措施,提高梅毒检测的准确性。方法:先用酶联免疫吸附试验(ELISA)对6 317例患者的血清进行检测,阳性标本再用梅毒螺旋体明胶颗粒凝集试验(TPPA)和免疫印迹试验(WB)进行确认试验,制定排除假阳性结果的措施。结果:ELISA法检出106例阳性,老年组(≥60岁)62例阳性,中青年组(<60岁)44例阳性。在老年组中,TPPA法确认60例阳性,假阳性率为3.22%(2/62);WB法确认58例阳性,假阳性率为6.45%(4/62),WB法与TPPA法检出假阳性率的差异无统计学意义(χ2=0.701,P>0.05)。在中青年组中,TPPA确认43例阳性,假阳性率为2.27%(1/44);WB确认42例阳性,假阳性率为4.55%(2/44),WB法与TPPA法检出假阳性率的差异无统计学意义(χ2=0.173,P>0.05)。结论:为了提高梅毒检测的准确性,对ELISA法筛查的阳性标本,结合临床表现和病史,用TPPA法进行确认试验,对有疑问的结果用WB法进一步确认。  相似文献   

8.
孙家祥  李艳  叶敏 《吉林医学》2015,(9):1724-1725
目的:探讨老年人血清梅毒抗体假阳性结果出现的几率及原因。方法:采用酶联免疫吸附试验(ELISA)对6 058例60岁以上老年人血清梅毒抗体进行初筛,阳性者再用密螺旋体颗粒凝集试验(TPPA)复查。并以15 224例青年筛查对象为对照。结果:6 058例老年人ELISA法共检出235例梅毒阳性,TPPA法确诊仅145例,假阳性率为1.49%。与青年组比较,ELISA法检出率差异有统计学意义(P<0.01),而TPPA法检出率差异无统计学意义(P>0.05)。结论:老年人梅毒检测ELl SA法易出现假阳性,阳性者应用TPPA法进行确认,以提高梅毒检出的正确率。  相似文献   

9.
目的:比较和评价3种临床常用的梅毒螺旋体(TP)抗体检测方法,并重点关注酶联免疫吸附试验(ELISA)检测抗TP抗体时存在假阳性的问题.方法:收集赤峰市第二医院5 227名门诊及住院患者血清,用ELISA法进行检测得到抗TP抗体阳性患者的血清,再用微粒子化学发光免疫分析法(CLIA)和梅毒螺旋体明胶颗粒凝集试验(TPPA)对ELISA法梅毒螺旋体抗体阳性标本进行检测,对结果进行统计分析.结果:3种方法中,ELISA法检出121例阳性结果,CLIA法和TPPA法分别检出98例和96例阳性结果.以TPPA法为确证方法,ELISA法假阳性率最高,CLIA和TPPA两种方法比较无统计学意义(P>0.05);ELISA方法中,老年组的假阳性率明显高于中青年组(假阳性率分别为0.75%和0.33%).结论:CLIA法与TPPA法均可作为梅毒抗体的确证试验;用ELISA法检测梅毒抗体时,老年人假阳性率较高,在临床工作中应慎重对待.  相似文献   

10.
汪伟  鲁怀伟 《安徽医学》2013,34(2):193-194
目的探讨临床常用的4种梅毒血清学实验室检测方法对梅毒辅助诊断的价值。方法用酶联免疫吸附试验(ELISA-TP)、甲苯胺红不加热血清试验(TRUST)、梅毒螺旋体明胶颗粒凝集试验(TPPA)与梅毒螺旋体特异性抗体胶体金法(SYP)4种检测方法对159份血清标本进行检测,比较4种检测方法的敏感性、特异性。结果 TPPA、TRUST、SYP与ELISA-TP的敏感性分别为96.8%、78.7%、94.7%与98.9%,特异性分别为98.5%、93.8%、98.5%与96.9%。TRUST与TPPA、SYP、ELISA-TP法阳性率比较差异均有统计学意义(P<0.05)。结论 ELISA-TP法、STP法和TPPA法检测梅毒抗体的敏感性远远大于TRUST,ELISA-TP、SYP和TPPA法与TRUST检测方法组合应用对梅毒的筛查和疗效判断具有重要意义。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

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