胸腔积液ADA，ADA2 及ACE 水平检测对结核性和恶性胸腔积液的鉴别诊断价值

目的 探讨胸腔积液腺苷脱氨酶（adenosine deaminase,ADA）、腺苷脱氨酶同工酶2（adenosine deaminaseisozyme 2,ADA2）及血管紧张素转化酶（angiotensin converting enzyme,ACE）水平检测对结核性和恶性胸腔积液的鉴别诊断价值。方法 选取安康市汉滨区第三人民医院2018 年1 月~2019 年12 月52 例胸腔积液确诊患者,采用酶显色测定法测定ADA,ADA2,采用连续监测法测定ACE。使用受试者工作特征（ROC）曲线,并计算曲线下面积（AUC）评估ADA,ADA2 和ACE 活性水平对结核性与恶性胸腔积液鉴别诊断的意义。结果 ADA2,ACE 和ADA 活性水平,结核性胸腔积液患者分别为47.17±26.22,52.73±30.07 和59.90±35.72 U/L,恶性胸腔积液患者分别为17.70±7.82,24.18±8.94 和20.48±6.91 U/L,结核性胸腔积液患者胸腔积液中ACE,ADA2 和ADA 活性水平高于恶性胸腔积液患者,差异均有统计学意义（t=4.85 ～ 5.808,均P ＜ 0.001）;ACE,ADA 和ADA2 曲线下面积分别为0.865,0.881 和0.899,对鉴别结核性与恶性胸腔积液均有意义,ADA2 的鉴别诊断效能较高;ADA2 联合ADA,ADA2 联合ACE,ADA 联合ACE 的曲线下面积依次为0.875,0.942 和0.952,ADA 联合ACE 的鉴别诊断效能较高。结论 ADA,ADA2 和ACE对鉴别诊断结核性与恶性胸腔积液均有意义;单指标中ADA2 和联合指标中ADA 联合ACE 的鉴别诊断效能较高。     

胸膜厚度、腺苷脱氨酶、胸腔积液癌胚抗原/血清癌胚抗原比值对恶性与结核性胸腔积液的鉴别诊断价值

目的评价胸膜厚度、腺苷脱氨酶（ADA）、胸腔积液癌胚抗原/血清癌胚抗原（胸腔积液CEA/血清CEA）比值在恶性与结核性胸腔积液的鉴别诊断中的价值。方法选择经胸腔镜病理组织检查确诊胸腔积液患者91例,按病理结果分为2组,结核性胸膜炎组（结核性组）43例和恶性胸腔积液组（恶性组）48例。对2组患者胸腔积液CEA/血清CEA比值、ADA和CT影像学上表现的胸膜厚度、胸腔积液密度变化进行比较。结果恶性组胸腔积液CEA/血清CEA比值高于结核性组[6.72±6.9 vs 0.82±0.43（t=-3.832,P=0.001）,ADA水平低于结核性组（21.9±6.5）vs（50.3±31.9）U/L（t=4.474,P=0.000）];恶性组胸膜厚度〉10.0 mm且以弥漫型为主,结核性组胸膜厚度6.0 mm左右且以局限性为主;胸膜厚度、ADA、胸腔积液CEA/血清CEA3项联合检测的灵敏度、特异度、灵敏度/1-特异性（AUC）分别为90.0%、96.0%、0.869,均高于单检和2项联检,且3项联检的特异度与胸腔积液CEA/血清CEA＋ADA、胸膜厚度＋胸腔积液CEA/血清CEA联检的特异度比较差异均有统计学意义（均P〈0.05）。结论胸膜厚度、ADA、胸腔积液CEA/血清CEA3项联合检测对鉴别恶性与结核性胸腔积液有较高的临床价值。     

腺苷脱氨酶 癌胚抗原在胸腔积液鉴别诊断中的价值

目的探讨腺苷脱氨酶（ADA）、癌胚抗原（CEA）在癌性胸腔积液、结核性胸腔积液及非结核良性胸腔积液鉴别诊断中的应用价值。方法同时测定癌性胸腔积液、结核性胸腔积液及非结核良性胸腔积液中ADA、CEA,并对数据进行分析。结果 （1）结核性胸腔积液ADA为48.00（34.73～59.18）U/L,高于癌性胸腔积液[6.80（11.50～17.88）U/L]和非结核良性胸腔积液[9.45（5.32～17.23）U/L],差异有统计学意义（P〈0.01）,癌性胸腔积液和非结核良性胸腔积液ADA比较差异无统计学意义（P〉0.05）。癌性胸腔积液CEA为47.80（11.54～900.00）μg/L,高于结核性胸腔积液[0.93（0.37～1.88）μg/L]和非结核良性胸腔积液[0.97（0.68～1.66）μg/L],差异有统计学意义（P〈0.01）,结核性胸腔积液与非结核性良性胸腔积液CEA比较差异无统计学意义（P〉0.05）。（2）ADA诊断结核性胸腔积液ROC曲线下面积为0.943;CEA诊断癌性胸腔积液ROC曲线下面积为0.927。结论胸腔积液ADA、CEA指标的测定,对胸腔积液性质的鉴别有较高的价值,可为临床诊断和治疗提供重要信息。     

胸水染色体与腺苷脱氨酶联合细胞学检测对良恶性胸腔积液鉴别诊断价值的探讨

目的探讨胸腔积液染色体、腺苷脱氨酶（ADA）及细胞学检测对良恶性胸腔积液的鉴别诊断价值。方法 158例恶性胸腔积液和103例结核性胸腔积液分别进行胸水细胞培养和G显带技术检测染色体,采用比色法测定ADA,并进行胸水脱落细胞检测。结果恶性胸水中染色体阳性率为86.1%（136/158）,显著高于结核性胸腔积液1.9%（2/103）（P〈0.05）;恶性胸腔积液中ADA≥45U/L病例数占3.8%（6/158）,显著低于结核性胸腔积液的97.1%（100/103）（P〈0.05）;恶性胸腔积液中脱落细胞阳性率占65.8%（104/158）,而结核性胸腔积液未发现肿瘤细胞,差别有统计学意义（P〈0.05）。胸水染色体、ADA联合细胞学检测可以提高诊断敏感性（91.8%）,染色体联合ADA检测可以提高诊断的特异性（99.0%）。结论胸水细胞学检测特异性高,但是敏感性低,胸水染色体、ADA联合细胞学检测有助于鉴别诊断良、恶性胸腔积液。     

白介素27联合腺苷脱氨酶诊断结核性胸腔积液的临床价值

目的探讨白介素-27(IL-27)联合腺苷脱氨酶(ADA)在结核性胸腔积液中的临床价值。方法选取98例结核性胸腔积液患者、50例恶性胸腔积液患者及38例肺炎旁胸腔积液,测定积液中IL-27、ADA含量,分析比较其对结核性胸腔积液的诊断效率。结果结核性胸腔积液中IL-27、ADA水平均显著高于恶性胸腔积液组及肺炎旁胸腔积液,差异有统计学意义(P0.01),IL-27、ADA诊断结核性胸腔积液的ROC曲线下面积分别为98.1%、89.7%;胸水中IL-27的最优截断点为300.8ng/L,敏感度为96.6%,特异性为97.2%;ADA的最优截断点为24.5U/L,敏感度为93.21%,特异性为85.9%,胸腔积液中IL-27含量与ADA含量呈正相关(r值分别为0.149,0.095,P0.01)。结论 IL-27联合ADA可作为结核性胸腔积液和恶性胸腔积液鉴别诊断的可靠指标。     

多项指标检测在胸腔积液鉴别中的应用

目的探讨联合检测血清和胸腔积液中腺苷脱氨酶（ADA）、乳酸脱氢酶（LDH）与癌胚抗原（CEA）的水平等指标对结核性和恶性胸腔积液的鉴别诊断意义。方法对临床已确诊的43例胸腔积液患者（结核23例,恶性肿瘤20例）的胸腔积液和血清分别采用酶法、速率法和放射免疫分析法进行ADA、LDH和CEA含量测定。结果结核性胸腔积液中ADA的含量为（43.00±13.82）U/L,LDH的含量为（470.04±175.23）U/L,CEA的含量为（1.25±1.22）μg/L;在恶性胸腔积液中,ADA为（17.57±6.20）U/L,LDH为（695.15±643.68）U/L,CEA为（293.74±197.50）μg/L。结核性胸腔积液组ADA含量较恶性胸腔积液组明显增高（P〈0.01）,恶性胸腔积液组CEA含量较结核性胸腔积液组明显增高（P〈0.01）。多项指标联合检测对恶性胸膜积液诊断的敏感性为95.0%,特异性为100%,较单一指标的敏感性、特异性高。结论胸腔积液中ADA、CEA的联合检测对结核性和恶性胸腔积液的鉴别诊断具有一定价值。     

ADA、CysC在胸腔积液和血清中的比值对结核性胸腔积液的诊断价值研究

目的探讨腺苷脱氨酶(ADA)、半胱氨酸蛋白酶抑制剂C(CysC)在胸腔积液和血清中的比值对结核性胸腔积液的临床诊断价值。方法随机抽取2014年上半年邯郸市传染病医院收治的结核性胸膜炎患者50例(结核组),肺癌胸腔积液患者20例(恶性组),肝性胸腔积液患者30例(对照组),检测胸腔积液中CysC(PCysC)、ADA(PADA)和血清的CysC(SCysC)、ADA(SADA)浓度,分别计算两种指标在胸腔积液与血清中含量的比值。结果 (1)分别比较PADA、SADA,SCysC、PCysC,PCysC/SCysC和PADA/SADA 3组结果,差异均有统计学意义(P0.05)。(2)依据ROC曲线确立PADA/SADA和PCysC/SCysC的临界值分别为1.58和2.30,PADA/SADA和PCysC/SCysC曲线下面积分别为0.880和0.786。结论 PADA/SADA和PCysC/SCys对结核性胸腔积液的诊断价值优于单纯使用PADA、SADA、PCysC和SCysC,可作为鉴别诊断结核性胸腔积液的指标应用于临床。     

腺苷脱氨酶诊断结核性和恶性胸腔积液价值

目的:探讨胸腔积液和血清中腺苷脱氨酶鉴别诊断结核性胸膜炎及恶性胸腔积液的价值。方法:因胸腔积液住院,经胸腔镜检查和胸膜活检病理确诊为结核性胸腹炎患者(结核组)42例和恶性胸腔积液患者(恶性组)38例,分别检测2组胸腔积液及血清中腺苷脱氨酶活性,应用ROC曲线确定结核性胸膜炎患者胸腔积液腺苷脱氨酶的最佳临界值。结果:结核组胸腔积液腺苷脱氨酶活性、胸腔积液腺苷脱氨酶与血清腺苷脱氨酶比值分别为(48±25)u/L和4.2±3.0,高于恶性组的(20±9)u/L和1.7±1.0,差异均有统计学意义(P<0.01);结核组和恶性组血清腺苷脱氨酶活性分别为(15±6)u/L和(12±5)u/L,差异无统计学意义(P>0.05)。应用ROC曲线确定胸腔积液腺苷脱氨酶诊断结核性胸膜炎的最佳临界值为30.7 u/L,灵敏度为70.5%,特异度为92.2%。结论:胸腔积液腺苷脱氨酶活性可作为鉴别结核性和恶性胸腔积液的重要指标,对结核性胸膜炎有较高的临床诊断价值,而血清腺苷脱氨酶活性对鉴别二者无临床意义。     

腺苷脱氨酶、癌胚抗原及葡萄糖联合检测在结核性与恶性胸腔积液鉴别诊断上的价值

目的 探讨腺苷脱氨酶(ADA)、癌胚抗原(CEA)及葡萄糖(Glu)联合检测在结核性与恶性胸腔积液鉴别诊断上的价值.方法 对结核和恶性胸腔积液进行ADA 、Glu及CEA联合检测并进行统计.结果 ADA在结核性胸腔积液中的水平明显高于恶性胸腔积液(P＜0.01),CEA在恶性胸腔积液中的水平明显高于结核性胸腔积液(P＜0.01),Glu在恶性胸腔积液中的水平明显高于结核性胸腔积液(P＜0.05);ADA在结核性和恶性胸腔积液中的敏感度分别为88.8和6.3、特异性为95.8和12.9,CEA在结核性和恶性胸腔积液中的敏感度分别为4.8和56.5,特异性为18.8和93.8.结论 胸腔积液ADA、CEA检测对结核性和恶性胸腔积液具有诊断及鉴别诊断价值,葡萄糖的检测在于ADA与CEA均为阴性两者难于鉴别的时候,有助于鉴别诊断.     

胸腔积液341例回顾性分析

目的探讨胸腔积液病因、诊断及治疗。方法对341例胸腔积液的临床资料进行回顾性分析。结果在341例患者中,结核性胸腔积液164例（48.09%）,恶性胸腔积液98例（28.74%）,心功能衰竭25例（10.26%）,非特异性细菌感染17例（4.99%）;结核性胸腔积液患者间皮细胞、CEA、ADA与恶性胸腔积液患者比较,差异有统计学意义（P〈0.05或P〈0.01）;良性胸腔积液患者总有效率为94.92%,恶性胸腔积液总有效率为17.35%。结论胸腔积液的病因以结核性胸腔积液和恶性胸腔积液为主;胸腔积液间皮细胞含量、CEA和ADA水平是早期诊断、鉴别诊断良性和恶性胸腔积液的首选方法;结合患者年龄、起病情况、临床症状、体征、影像学检查、实验室检查（病原体检查及胸膜活检）、地域特征等,可确定病因进行有效的治疗。     

Diagnostic value of leptin in tuberculous pleural effusions

It is suggested that leptin may be involved in inflammation. Although relation between leptin levels and active pulmonary tuberculosis has been studied, there is no information about relation between leptin levels and tuberculous pleural effusions (TPE). We evaluated the diagnostic value of pleural fluid and serum leptin levels in TPE and compared them with adenosine deaminase (ADA). Forty-five patients, 17 tuberculous effusion and 28 nontuberculous effusion, with exudative pleural effusions were included. Leptin and ADA levels were measured from serum and pleural fluid in all patients. There were no statistically significant differences between tuberculous and nontuberculous groups with respect to the serum ADA activity and pleural fluid/serum leptin ratio. On the contrary, pleural fluid leptin level, pleural fluid ADA activity, serum leptin level and pleural fluid/serum ADA activity ratio were statistically different between tuberculous and nontuberculous groups. When leptin levels were corrected for body mass index, serum leptin levels did not reach statistical significance. Cut-off points to predict tuberculosis were calculated as 9.85 ng/ml and 35.55 U/l for pleural fluid leptin level and pleural fluid ADA activity, respectively. Sensitivity, specificity and area under the curve +/- standard error were 82.4%, 82.1%, 0.83 +/- 0.07 for pleural fluid leptin levels and 100%, 100%, 1.00 +/- 0.00 for pleural fluid ADA activity, respectively; the difference between these curves was significant (p = 0.01). Pleural fluid leptin levels were lower in tuberculous effusions than in other exudates. Pleural fluid leptin has a diagnostic value for TPE but not as good as that of ADA.     

Diagnostic accuracy of the cancer ratio for the prediction of malignant pleural effusion: evidence from a validation study and meta-analysis

ObjectiveThis study aimed to assess the diagnostic accuracy of serum LDH to pleural ADA ratio (cancer ratio, CR)for malignant pleural effusion (MPE) through an original study and meta-analysis.MethodsWe retrospectively collected data from 145 patients with MPE and 117 cases of benign pleural effusions (BPE). The diagnostic performance of CR and a typical biomarker of MPE, carcinoembryonic antigen (CEA), were analysed using the receiver operating characteristic (ROC) curves and the area under the curve (AUC) as a measure of accuracy. The overall diagnostic accuracy of CR was summarised by a standard diagnostic meta-analysis.ResultsSignificantly higher CR and pleural CEA values were observed in the MPE patients than in the BPE patients. At a cut-off value of 14.97, CR showed high sensitivity (0.91), low specificity (0.67), and high AUC (0.85). The combination of CEA and CR increased the AUC to 0.98. The meta-analysis included seven studies involving 2,078 patients. The pooled values for sensitivity, specificity, positive/negative likelihood ratio, and diagnostic odds ratio of CR were 0.96, 0.88, 7.70, 0.05, and 169, respectively. The AUC of the summary ROC of CR was 0.98.ConclusionCR has a high diagnostic accuracy for predicting MPE, especially when used in combination with pleural CEA.     

Concurrent measurement of adenosine deaminase and dipeptidyl peptidase IV activity in the diagnosis of tuberculous pleural effusion

Measurement of pleural fluid adenosine deaminase (ADA) levels aids diagnosing tuberculous pleural effusion (TPE). Dipeptidyl peptidase IV (DPP) enzyme is closely related to ADA. Our aim was to determine the value of concurrent measurement of these T-cell–associated enzymes, ADA and DPP levels in the diagnosis of TPE. Patients with pleural effusion were grouped as TPE, parapneumonic, malignant, congestive heart failure related, and miscellaneous pleural effusions. Pleural and serum ADA and DPP levels were measured. Pleural and serum levels of ADA and pleural DPP were higher in TPE group than the rest. In 7 patients, pleural biopsy revealed granulomatous pleuritis. All of these patients had TPE and had elevated serum and pleural ADA levels. Serum and pleural ADA or DPP levels and pleural ADA and DPP levels correlated with each other. Selecting cutoff values of 40 and 27 IU/L for pleural ADA and DPP, respectively, the sensitivity of concurrent measurement of both enzymes was 77%, specificity 94%, and diagnostic efficiency 91%. ADA and DPP play an important role in tuberculous immunopathogenesis. The utility of DPP in the diagnosis of TPE has never been determined before. Concurrent measurement of ADA–DPP can aid in diagnosing TPE with higher specificity, sensitivity, and efficiency.     

Diagnostic value of periostin in lung cancer‐related malignant pleural effusion

BackgroundPeriostin (POSTN) is an extracellular matrix protein that is overexpressed in lung cancer and is considered an effective diagnostic and prognostic biomarker for lung cancer. The purpose of this study was to investigate the diagnostic performance of POSTN and to further evaluate the diagnostic value of POSTN combined with carcinoembryonic antigen (CEA) and cancer ratio [CR: serum lactate dehydrogenase (LDH)/pleural effusion adenosine deaminase (PE ADA)] in lung cancer‐related malignant PE (MPE).MethodsA total of 108 patients with PE, including 54 with lung cancer and 54 with benign lung disease, were enrolled in this study. The POSTN levels of PE and serum were detected using an enzyme‐linked immunosorbent assay. Information on the expression of PE and serum CEA, serum LDH, and PE ADA was collected from medical records.ResultsThe levels of PE POSTN in MPE of patients with lung cancer were significantly higher than those in patients with benign PE (p < 0.0001). The receiver operating characteristic (ROC) curve indicated that the diagnostic sensitivity and specificity of PE POSTN for lung cancer‐related MPE were respectively 77.78% and 68.52% when the cutoff value was determined to be 53.45 ng/ml. The ROC curve analysis demonstrated that PE POSTN has a high diagnostic value in MPE associated with lung cancer [area under the curve (AUC) = 0.764], and the combination of PE POSTN, PE CEA, and CR can improve the diagnostic accuracy of lung cancer‐related MPE (AUC = 0.948).ConclusionPOSTN can be used as a potential marker for lung cancer‐related MPE diagnosis.     

腺苷脱氨酶在结核性胸腔积液中的诊断价值

目的探讨腺苷脱氨酶(ADA)活性测定在结核性胸腔积液诊断中的应用价值。方法对100例胸腔积液患者胸腔积液中ADA活性进行检测,并对其中的60例结核性胸腔积液和40例非结核性胸腔积液进行ADA活性比较。结果 100例患者胸腔积液中ADA活性增高共62例,其中结核组58例,非结核组4例,结核性胸腔积液组ADA活性为(54.21±15.24)U/L,明显高于恶性胸腔积液组〔(18.76±9.35)U/L〕及炎性胸腔积液组〔(16.58±8.24)U/L〕,差异有统计学意义(P<0.01);ADA诊断结核性胸腔积液的灵敏度为96.7%(58/60)、特异度为90%(36/40)。结论胸腔积液ADA活性检测可以作为鉴别结核性与非结核性胸腔积液的指标。     

胸腔积液中BNP和ADA对鉴别诊断结核性或恶性胸腔积液的临床研究

目的:探讨胸腔积液中脑钠肽(BNP)和血清腺苷脱氨酶(ADA)的水平对鉴别诊断结核性、恶性胸腔积液的临床价值。方法:选择结核性胸腔积液患者26例、恶性胸腔积液患者30例,分别取患者胸腔积液5 ml送检,采用ELISA法测定胸腔积液中BNP水平,用比色分析法检测胸腔积液ADA含量,并对测定结果进行统计学分析。结果:恶性胸腔积液中BNP水平明显高于结核性组,ADA水平明显低于结核性组,两组比较差异有统计学意义(P<0.01)。BNP与ADA在同一性质胸腔积液中的检测结果呈负相关性。结论:胸腔积液中BNP、ADA水平的测定有助于结核性及恶性胸腔积液的鉴别诊断,两者联合进行诊断的意义有待于进一步研究。     

探讨渗出性胸腔积液ADA、CEA对良恶性胸腔积液的诊断价值

目的 探究渗出性胸腔积液腺苷脱氨酶(ADA)、癌胚抗原(CEA)对良恶性胸腔积液的诊断价值.方法 选择2017年1月至2020年8月本院收治的106例渗出性胸腔积液患者,将患者分为恶性组(n=36)和良性组(n=70).对两组患者胸水ADA、胸水CEA、血清CEA水平进行比较,采用单因素、多因素Logistic回归分析...     

3项联合检测在诊断结核性和恶性胸腔积液中的价值

目的测定胸腔积液和血清中腺苷脱氨酶(ADA)、乳酸脱氢酶(LDH)与癌胚抗原(CEA)的水平,探讨其指标联合检测对结核性和恶性胸腔积液的鉴别诊断意义。方法收集临床已确诊的86例胸腔积液患者(结核性48例,恶性38例)的胸腔积液和血清分别采用酶免疫法和化学发光法进行ADA、LDH和CEA含量测定。结果结核性胸腔积液ADA含量较恶性胸腔积液组明显增高(P0.01),CEA在恶性胸腔积液中含量较结核性胸腔积液组明显增高(P0.01)。3项指标联合检测敏感性为78.3%,特异性为93.7%,较单一指标的特异性高。结论联合检测ADA、LDH和CEA对不明原因的胸腔积液,在诊断和鉴别诊断上具有重要意义,能提高诊断准确率。     

腺苷脱氨酶及C-反应蛋白检测对胸腔积液鉴别诊断的临床意义

目的探讨腺苷脱氨酶(ADA)及C-反应蛋白(CRP)检测对诊断结核性与癌性胸腔积液的价值。方法对临床确诊的93例结核性和56例癌性患者胸腔积液分别进行ADA及CRP的检测,并对结果进行比较分析。结果结核性患者胸腔积液ADA和CRP的水平含量分别为(51±7)U/L、(27.0±8.4)mg/L;癌性患者胸腔积液ADA和CRP的水平含量分别为(19±4)U/L、(14.0±5.7)mg/L,两者比较差异均有统计学意义(P<0.05)。结论 ADA及CRP检测在鉴别结核性和癌性胸腔积液方面具有较好的实用价值和临床意义。