摘要
目的：探讨类风湿关节炎（RA）相关自身抗体对不同筛查方法检测 HIV 病毒结果的影响，为临床中出现假阳性结果的分析及不同检测方法出现不一致结果的解释提供依据。方法按照1987年美国风湿病学会修订的类风湿性关节炎（RA）分类标准选择2013年10月至2014年10月间上海光华中西医结合医院风湿内科收治的 RA 患者100例，其中男性21例，女性79例，年龄（50．5＆#177;16．5）岁，病程1～23年。根据抗体滴度分为两组：RF ＜18 U／ml 或抗 CCP ＜25 U／ml 组37例，其中男性7例，女性30例，年龄（41＆#177;9）岁；RF ＞300 U／ml 或抗 CCP ＞500 U／ml 组63例，其中男性14例，女性49例，年龄（56＆#177;11）岁。收集血清采用以下3种方法酶联免疫吸附法（ELISA）、快速胶体金法（包被抗 HIV－1和 HIV－2抗体）及电化学发光法（ECLIA）（包被抗 HIV－1、 HIV－2抗体和 HIV－1 p24抗原）分别检测100例 RA 患者血清 HIV 病毒；阳性标本由上海市长宁区疾病控制中心进行确认试验（免疫印迹试验）；同时采用 ELISA 法检测类风湿因子（Rheumatoid Factors，RF： IgG／IgM／IgA）和抗环瓜氨酸肽抗体（抗 CCP 抗体）。 HIV 病毒阳性率用四格表确切概率法比较，组间比较采用卡方检验。结果100例RA 患者 ELISA 及快速胶体金法检测 HIV 抗体筛查结果均为阴性；ECLIA 法检测16例初筛阳性，与 ELISA 及快速胶体金法检测结果不一致，差异有统计学意义（16∶0∶0，P ＜0．01）。 RF－IgM ＜18 U／ml 组 HIV 抗体筛查阳性者1 ／37例， RF－IgM、RF－IgG ＞300 U／ml 组阳性者分别为12／63例、3／63例，与 RF ＜18 U／ml 组比较差异有统计学意义（12∶3∶1，P ＜0．01）。抗 CCP 抗体＜25 RU／ml 组、＞500 RU／ml 组阳性例数分别为 2／43例、14／57例，不同抗 CCP 抗体滴度组间比较差异有统计学意义（2∶14，P ＜0．01）。结论高滴度�
Objective To investigate if immunological factors associated with the false HIV screening test results in RA.Methods Subjects who attended the Rheumatology Outpatient Clinic -Internal Medicine Unit of Guanghua Integrative Hospital , from October 2013 to October 2014, who met the American College of Rheumatology /European League Against Rheumatism Criteria for RA were recruited for the study . 100 subjects with RA were recruited.Each patient underwent clinical examination and blood sampling for assessment of serum HIV screening test and Rheumatoid factors （ RF-IgA, -IgG, -IgM） and anti-cyclic citrullinated protein antibodies （anti-CCP） were purified from the plasma and detected by ELISA , Samples were collected and processed using standard protocols and were stored in the same freezer before analysis . RA patients were divided into two groups based on the titters of RF and anti -CCP：RF 〈18 U/ml/anti-CCP 〈25 U/ml group and RF 〉300 U/ml /anti-CCP 〉500 U/ml group.HIV screening tests were determined by three methods： ELISA、Immuno-colloidal Golden Method and ECLIA.The positive results were confirmed by the Changning Centers for Disease Control , Shanghai through western -blotting test.Results 100 samples detected by ELISA and Immuno-colloidal Golden Method were given negative results , 16 positive results existed in ECLIA group.There were1,12,3 positive cases in RF-IgM 〈18 U/ml, RF-IgM and RF-IgG 〉300 U/ml group（2.7%,32.4%,13.6%;P 〈0.01）.In anti-CCP 〈25 RU/ml and 〉500 RU/ml groups there were 2 and 4 positive results（4.7%,24.6%;P 〈0.01）.Conclusions Different HIV screening test methods would give different results , according to operation requirement using second method to determine the HIV screening result.HIV False-positivity was associated with the titers of anti -CCP and RF in RA.
出处
《中华检验医学杂志》
CAS
CSCD
北大核心
2016年第7期522-525,共4页
Chinese Journal of Laboratory Medicine
基金
上海市卫计委课题（201440317）
上海市自然科学基金（11ZR1427000）
关键词
关节炎
类风湿
人类免疫缺陷病毒
假阳性反应
自身抗体
酶联免疫吸附测定
Arthritis,rheumatoid
Human immunodeficiency virus
False positive reactions
Autoantibodies
Enzyme-linked immunosorbent assay
