渗出性PADA与PLDH联合检测临床意义探析

目的探讨联合检测渗出性胸水腺苷脱氨酶（PADA）、胸水乳酸脱氢酶（PLDH）在恶性肺癌胸水及良性结核性胸水的临床意义。方法检测38例肺癌、31例肺结核患者胸水ADA和LDH。结果肺癌患者胸水LDH水平显著高于结核患者胸水（P〈0.05）,而ADA结果显著低于结核患者胸水（P〈0.05）。胸水ADA与LDH联合检测,对肺癌所致胸水判别正确率为92.1%。结论高PLDH和低PADA水平提示恶性胸水,仅有高水平PADA是结核性胸水的特征。     

胸水酶谱分析对结核性及癌性胸水鉴别诊断的评价

本文报告51例结核性胸水和42例癌性胸水患者血清及胸水中ADA、ACE、LYZ及LDH的活性。结果表明,纬核性胸水ADA、ACE及LYZ活性显著高于癌性胸水(P<0.05～0.01),而癌性胸水LDH晕高于结核性胸水,但无显著性。单酶测定对结核性胸水的敏感性PADA为88％,PACE74％,PLYZ73.3％。采用多酶组合诊断PADA PACE的敏感性为95％,PADA PACE PLYZ为100％;若同时计算各酶的胸水/血清比值,可将PADA PLYZ的敏感性从81％提高到94.11％     

淋巴细胞性胸水中ADA及LDH检测的价值探讨

目的探讨在不同类型淋巴细胞性胸水中腺苷脱氨酶(ADA)及乳酸脱氢酶(LDH)检测的鉴别价值。方法 对124例淋巴细胞性胸水,分为结核性胸水组、癌性胸水组及非结核性良性胸水组,用日立7170-A全自动生化分析仪测定ADA及LDH活性。结果结核性胸水组ADA活性显著高于另两组(P<0.001),但3组间LDH活性比较无显著差异(P>0.05)。结论ADA活性检测对淋巴细胞性胸水性质的鉴别有重要临床价值,而LDH活性检测无鉴别意义。     

腺苷脱氨酶 癌胚抗原和乳酸脱氢酶检测在胸腔积液诊断和鉴别诊断中的临床意义

目的:探讨胸腔积液患者腺苷脱氨酶(ADA)、痈胚抗原(ECA)和乳酸脱氢酶(LDH)的临床意义。方法:ADA采用酶比色法,CEA采用电化学发光法,LKH速率法(逆反应)对25例胸积液患者胸水和血清检测。结果:结核组胸ADA及其比值高于恶性组(P<0.05),恶性组胸水、血清CEA及其比值和胸水LDH显著高于结核组(P<0。05)。结论:检测ADA、CEA、LDH及与血清比值的联合检测在结核性和恶性胸腔积液的诊断和鉴别诊断中有一定临床意义。     

ADA、CEA和LDH检测在胸腔积液疾病诊断中的应用

目的探讨腺苷酸脱氨酶(ADA)、癌胚抗原(CEA)和乳酸脱氢酶(LDH)在胸腔积液患者中的临床意义。方法 ADA、LDH采用酶速率法,CEA采用化学发光法,对56例胸腔积液患者胸水和血清检测。结果结核组胸水ADA高于恶性组(P<0.05),恶性组胸水、血清CEA和胸水LDH明显高于结核组(P<0.05)。结论检测ADA、CEA和LDH在结核性胸腔积液和恶性胸腔积液的诊断和鉴别诊断有一定的临床意义。     

腺苷脱氨酶、癌胚抗原和乳酸脱氢酶检测在胸腔积液病因诊断中的意义

目的:探讨胸腔积液患者腺苷脱氨酶(ADA)、癌胚抗原(CEA)和乳酸脱氢酶(LDH)的临床意义。方法:ADA采用酶比色法,CEA采用化学发光法,LDH采用乳酸法对49例胸腔积液患者胸水和血清检测。结果:结核组胸水ADA及其比值显著高于恶性组(P<0.05),恶性组胸水、血清CEA及其比值和胸水LDH显著高于结核组(P<0.05)。结论:检测ADA、CEA和LDH在结核性和恶性胸腔积液的诊断和鉴别诊断中有一定临床意义。     

腺苷脱氨酶在渗出性胸水中的诊断价值

目的评价胸腔积液腺苷脱氨酶(ADA)在恶性胸水及结核性胸水(渗出性胸水)中的诊断价值。方法采用酶动力学法分别检测15例肿瘤患者和15例结核患者胸水ADA,比较其活性及阳性率。结果肿瘤性胸水组ADA活性显著低于结核性胸水组(t=3.385,P<0.01)。结论ADA可作为恶性胸水与结核性胸水鉴别的参考指标。     

检测CEA mRNA、TA、ADA和TB DNA鉴别诊断恶性与结核性胸水114例临床评价

目的:评价应用癌胚抗原mRNA(CEA mRNA)、端粒酶活性(TA)、腺苷脱氨酶(ADA)和结核杆菌DNA(TB DNA)指标鉴别诊断恶性与结核性胸水的价值。方法:对114例恶性胸水(恶性组)和结核性胸水(结核组)患者以采集胸水为标本,应用PCR技术检测CEA mRNA、TA和TB DNA、酶动力学反应终点法检测ADA。结果:CEA mRNA、TA、ADA和TB DNA阳性结果分别为:①恶性组45例(78.9%)、45例(78.9%)、10例(17.5%)和2例(3.5%);②结核组4例(7.0%)、3例(5.3%)、48例(84.2%)和40例(70.2%)。恶性组CEA mRNA、TA和ADA(ADA<33U/L)的特异性和敏感性分别为93.0%和78.9%,94.7%和78.9%,84.2%和82.4%;结核组ADA(ADA>33U/L)和TB DNA的特异性和敏感性分别为82.5%和84.2%,96.5%和70.2%;组间具有显著性差异(P<0.001)。结论:CEA mRNA和TA指标诊断恶性胸水具有较高的特异性和敏感性,TB DNA指标诊断结核性胸水具有较高的特异性和敏感性,ADA对两种胸水的特异性较低但敏感性较高,共同应用这些指标鉴别诊断恶性与结核性胸水具有较高的应用价值。     

结核蛋白芯片联合胸水ADA检测对结核性胸膜炎的诊断价值

目的:探讨结核蛋白芯片联合胸水腺苷脱氨酶(adenosine deaminase,ADA)检测对结核性胸膜炎的诊断价值。方法:对42例结核性胸腔积液患者和36例恶性胸腔积液患者血清标本进行结核蛋白芯片检测,同时检测胸水ADA。结果:42例结核性胸腔积液患者,结核蛋白芯片检测的灵敏度为69.05%,特异度为91.67%;而胸水ADA的灵敏度为83.33%,特异度为88.89%。两者联合检测的灵敏度为95.24%,高于单一结核蛋白芯片(69.05%)或胸水ADA(83.33%),差异有统计学意义(P<0.05)。两者联合检测的特异度为83.33%,低于单一结核蛋白芯片(91.67%)或胸水ADA(88.89%),差异无统计学意义(P>0.05)。结论:结核蛋白芯片联合胸水ADA检测可提高结核性胸膜炎的灵敏度,可作为结核性胸腔积液辅助诊断的有效方法。     

癌胚抗原、腺苷脱氨酶、结核抗体联合检测在诊断结核性和肿瘤性胸水中的意义

目的 探讨胸腔积液患者胸水癌胚抗原(CEA)、腺苷脱氨酶(ADA)、结核抗体水平在诊断结核性胸水和恶性胸水中的临床意义.方法 分别测定70例恶性胸水与62例结核性胸水患者胸水中的癌胚抗原、腺苷脱氨酶、结核抗体.结果 恶性组患者胸水CEA水平明显高于结核性组,两组差异有统计学意义(P<0.01),而结核性胸水ADA和结核抗体阳性率高于恶性胸水.结论 检测患者胸水癌胚抗原(CEA)、腺苷脱氨酶(ADA)、结核抗体阳性率水平有助于临床对胸水性质的诊断.     

血清LDH与胸水ADA及比值在恶性胸腔积液中的诊断价值

目的:分析血清乳酸脱氢酶（lactic dehydrogenase,LDH）、胸水腺苷脱氨酶（adenosine deaminase,ADA）及其比值在恶性胸腔积液（malignant pleural effusion,MPE）中的诊断价值,为临床诊断和治疗提供依据。方法:采用回顾性分析方法,选取2019年11月至2022年8月195例渗出性胸腔积液患者作为研究对象,其中有103例MPE患者、92例良性胸腔积液（benign pleural effusion,BPE）包括59例结核性胸腔积液患者和33例细菌性胸腔积液患者,对所有纳入对象的外周血样本中的LDH及胸腔积液样本中的ADA水平进行检测和比较,并计算血清LDH/胸水ADA的比值。通过ROC曲线分析血清LDH、胸水ADA及比值在恶性胸腔积液中的诊断效能。结果:MPE组的血清LDH水平及血清LDH/胸水ADA比值均高于良性胸腔积液组（P＜0.05）,而胸水ADA水平低于良性胸腔积液组（P＜0.05）。血清LDH、胸水ADA和血清LDH/胸水ADA比值联合检测具有较高的灵敏度和阳性预测值,其中以血清LDH联合血清LDH/胸水ADA比值检测诊断MPE的灵敏性和阳性预测值最高,分别达到0.95和0.94。结论:血清LDH、胸水ADA及血清LDH/胸水ADA比值对MPE有较高的诊断效能,联合检测在保持较好的灵敏度的同时,也能提供较高的阳性预测值,以血清LDH联合血清LDH/胸水ADA为佳,可以更早地区分胸腔积液的良恶性,对临床上的决策具有一定的诊断价值。     

胸腔积液和血清中PLD和ADA检测对结核性和恶性胸腔积液的诊断价值

目的:探讨胸腔积液和血清中脯氨酸肽酶(PLD)和腺苷脱氨酶(ADA)的检测在鉴别诊断结核性和恶性胸腔积液中的价值。方法:测定89例结核性胸腔积液患者和102例恶性胸腔积液患者胸腔积液和血清中PLD和ADA的活性,应用受试者工作特征曲线(ROC)进行评价。结果:结核性胸腔积液组胸腔积液ADA(50.10±18.00U/L)和血清ADA(17.66±6.67U/L)均高于恶性胸腔积液组(22.04±12.47U/L和11.16±4.49U/L),结核性胸腔积液组胸腔积液PLD(1345±206U/L)和血清PLD(1062±221U/L)均高于恶性胸腔积液组(1113±308U/L和737±154U/L),两组有极显著性差异(P<0.01)。胸腔积液和血清ADA的ROC曲线下面积分别为0.880和0.776。胸腔积液和血清PLD的ROC曲线下面积分别为0.911和0.907。胸腔积液ADA的最优截断点为40.0U/L时,灵敏度和特异度分别为88.8%和86.3%。血清ADA的最优截断点为13.0U/L时,灵敏度和特异度分别为78.7%和80.4%。胸腔积液PLD的最优截断点为1085U/L时,灵敏度和特异度分别为89.9%和85.3%。血清PLD的最优截断点为870U/L时,灵敏度和特异度分别为85.4%和87.3%。结论:PLD可作为鉴别诊断结核性胸腔积液和恶性胸腔积液的重要参考指标,其敏感度和特异度优于ADA。     

Expression of soluble Toll-like receptors in pleural effusions

Background The Toll-like receptors （TLRs） represent a group of single-pass transmembrane receptors expressed on sentinel cells that are central to innate immune responses.The aim of this study was to investigate the presence of soluble TLRs in pleural effusions, and the diagnostic values of TLRs for pleural effusion with various etiologies.Methods Pleural effusion and serum samples were collected from 102 patients （36 with malignant pleural effusion, 36with tuberculous pleural effusion, 18 with bacterial pleural effusion, and 12 with transudative pleural effusion）.The concentrations of TLR1 to TLR10 were determined in effusion and serum samples by enzyme linked immunosorbent assay.Four classical parameters （protein, lactate dehydrogenase, glucose and C-reactive protein （CRP）） in the pleural fluid were also assessed.Receiver-operating characteristic curves were used to assess the sensitivity and specificity of pleural fluid TLRs and biochemical parameters for differentiating bacterial pleural effusion.Results The concentrations of TLR1, TLR3, TLR4, TLR7 and TLR9 in bacterial pleural effusion were significantly higher than those in malignant, tuberculous, and transudative groups, respectively.Analysis of receiver operating characteristic curves revealed that the area under the curves of TLR1, TLR3, TLR4, TLR7 and TLR9 were 0.831, 0.843,0.842, 0.883 and 0.786, respectively, suggesting that these TLRs play a role in the diagnosis of bacterial pleural effusion.Also, the diagnostic value of TLRs for bacterial pleural effusions was much better than that of biochemical parameters （protein, lactate dehydrogenase, glucose and CRP）.Conclusions The concentrations of TLR1, TLR3, TLR4, TLR7 and TLR9 appeared to be increased in bacterial pleural effusion compared to non-bacterial pleural effusions.Determination of these pleural TLRs may improve the ability of clinicians to differentiate pleural effusion patients of bacterial origin from those with other etiologies.     

结核性胸腔积液中 D- 二聚体测定及意义

目的测定胸腔积液中D-二聚体水平。同时与胸腔积液中腺苷脱氨酶（ADA）水平比较,探讨胸水D-二聚体检测对结核性胸腔积液（TP）的诊断意义。方法分别采用速率法和酶标记免疫吸附测定法（ELISA法）测定临床确诊的30例TP和25例恶性胸腔积液（MP）患者的胸腔积液ADA、D-二聚体含量。结果ADA在TP中的含量为（5347±23．70）u／L,在MP中的含量为（1452±4．25）u／L;D-二聚体在TP中的含量为（70．63±3778）mg／L,在MP中的含量为（2844±1771）mg／L,TP中ADA、D-二聚体含量均高于MP,差异有统计学意义（P〈0．01）。胸腔积液ADA诊断TP的ROC曲线下面积为0955,以ADA〉40u／L为界值,诊断TP的敏感性为66.7％,特异性为100％,阳性预测值100％,阴性预测值71．4％,准确度81．8％。胸腔积液D-二聚体诊断TP的ROC曲线下面积为0、869,以D-二聚体〉55．5mg／L为界值,诊断TP的敏感性为667％,特异性为96％,阳性预测值952％,阴性预测值706％,准确度80％。结论TP中D-二聚体含量高于MP,检测胸腔积液D-二聚体含量对TP具有一定诊断价值。     

胸水腺苷脱氨酶在结核性胸膜炎的诊断价值

目的：探讨胸水腺苷脱氨酶(ADA)在结核性胸膜炎中的临床诊断价值。方法：采用速率法对56例结核性胸腔积液患者和50例恶性胸腔积液患者的胸水ADA进行检测,比较两组胸水ADA活性水平及阳性率。结果：结核性胸腔积液组ADA活性和阳性率明显高于恶性胸腔积液组,差异有显著性意义(P＜0.01)。结论：胸水ADA活性对结核性胸膜...     

联合检测ADA、CEA、CRP、淀粉酶在鉴别结核性和恶性胸腔积液中的诊断价值

目的：探讨联合检测腺苷脱氨酶（ADA）、癌胚抗原（CEA）、C反应蛋白（CRP）和淀粉酶在鉴别结核性与恶性胸腔积液中的诊断价值。方法：选取胸腔积液患者117例,分为结核组72例和恶性组45例,每组均留取胸腔积液检测ADA、CEA、CRP和淀粉酶。结果：结核组胸腔积液ADA和CRP均高于恶性组,差异有统计学意义（P〈0．001）;恶性组胸腔积液CEA和淀粉酶均高于结核组,差异有统计学意义（P〈0．001）。结论：联合检测腺苷脱氨酶（ADA）、癌胚抗原（CEA）、C反应蛋白（CRP）和淀粉酶对于结核性和恶性胸腔积液的鉴别诊断有更高参考价值,胸腔积液中ADA和CRP增高时支持结核性胸腔积液诊断,而CEA和淀粉酶增高则倾向于诊断恶性胸腔积液。     

Serum cancer antigen 125 in patients with pleural effusions

We studied the prevalence of raised serum CA125 in patients with pleural effusions and explored factors affecting its level. Sixty four patients with benign effusions and 36 patients with malignant effusions admitted to the University Malaya Medical Centre from May 2001 to January 2002 were included in the study. There were no significant differences in age, gender and ethnicity of the patients with benign and malignant effusions. There was also no difference in the frequency of the side of pleural effusion between the two groups but compared to benign effusions, a higher proportion of malignant effusions was moderate to large in size (66% versus 39%, p = 0.011). Serum CA125 levels were above 35U/dL in 83.3% and 78.1% of patients with malignant and benign effusions, respectively (p = 0.532). All patients with underlying malignancy and 95.3% of patients with benign effusions had pleural fluid CA125 levels above 35U/dL (p = 0.187). The median levels of CA125 were higher in the pleural fluid than in the serum in all aetiological groups. Higher serum CA125 levels were more likely to be found in patients with moderate to large effusions (p = 0.015), malignant effusions (p = 0.001) and in female patients (0.016). Serum CA125 level showed significant correlation with pleural fluid CA125 level (r = 0.532, p < 0.001) but not with pleural fluid total white blood cell count (r = -0.092, p = 0.362), red blood cell count (r = -0.082, p = 0.417) and lactate dehydrogenase level (r = 0.062, p = 0.541). We conclude that serum CA125 is commonly elevated in patients with benign and malignant pleural effusions.     

Differences in pleural fluid characteristics, white cell count and biochemistry of tuberculous and malignant pleural effusions

Tuberculosis and malignancy are two common causes of exudative pleural effusions. In this retrospective study of 52 patients with tuberculous pleural effusions and 32 patients with malignant effusions, the median age of patients with malignant effusions (68.5 years) was older than that of patients with tuberculous effusions (34.5 years) (p < 0.001). Both types of effusion occurred more frequently on the right side and there was no difference between them in terms of right-sided dominance. A higher percentage of patients with malignant pleural effusions (44%) presented with large effusions than patients with tuberculous effusions (12%) (x2 = 11.33, p = 0.001). A higher proportion of patients with tuberculous effusion had lymphocyte predominant effusions and tuberculous effusions had higher lymphocyte percentage, lower red cell count, and higher protein content. However, there was considerable overlap of these characteristics of both types of effusions.     

ADA、LDH和CRP在鉴别诊断恶性胸腔积液中的价值

目的：探讨腺苷脱氨酶（ADA）、乳酸脱氢酶（LDH）和C-反应蛋白（CRP）在鉴别诊断恶性胸腔积液中的价值。方法：分别检测47例肿瘤性胸腔积液和39例结核性胸腔积液中ADA、LDH和CRP水平,比较ADA、LDH和CRP在两组间的变化及阳性率。结果：肿瘤性胸腔积液组LDH水平和阳性率明显高于结核性胸腔积液组,ADA、CRP水平和阳性率明显低于结核性胸腔积液组,两组比较,差异均有统计学意义（P〈0．05）。结论：ADA、LDH和CRP在肿瘤性和结核性胸腔积液间存存差异,对两者的鉴别诊断具有重要价值。