抗突变型瓜氨酸波形蛋白抗体对类风湿关节炎的诊断价值

目的:探讨抗突变型瓜氨酸波形蛋白(MCV)抗体对类风湿关节炎(RA)的诊断价值.方法:用酶联免疫吸附试验测定117例RA患者(RA组)和42例正常对照的血清抗MCV和抗环瓜氨酸多肽(CCP2)抗体,用速率散射免疫比浊法同步检测类风湿因子IgM(RF-IgM),利用受试者工作特征(ROC)曲线分析抗MCV抗体对RA的诊断价值.结果:抗MCV和抗CCP2抗体的诊断界值分别为21 U/mL、12 U/mL时,2者对RA诊断的灵敏度分别为75.6%和66.7%,特异性分别为92.5%和98.1%,2者联合的灵敏度和特异性分别为63.2%和98.7%;抗MCV抗体的ROC曲线下面积(AZ)为0.853(95%CI0.801～0.906),抗CCP2抗体的AZ为0.910(95%CI 0.873～0.946),2者差异无统计学意义(Z=0.890,P=0.230).2者联合的AZ为0.923(95%CI 0.831～0.957),与抗MCV和抗CCP2抗体单独测定的AZ比较,差异亦无统计学意义(Z=2.190,P=0.080;Z=1.670,P=0.120).结论:抗MCV抗体在诊断RA时与抗CCP2抗体效果相当,2者联合检测并无明显优势.     

抗突变型瓜氨酸波形蛋白抗体和抗环瓜氨酸肽抗体对类风湿关节炎诊断价值的比较

目的：评价抗环瓜氨酸肽（CCP）抗体和抗突变型瓜氨酸波形蛋白抗体（MCV）对类风湿关节炎（RA）的诊断价值。方法：用酶联免疫吸附试验（ELISA）法分别测定RA患者47例、其他风湿病患者42例以及健康对照者30例血清中的抗CCP抗体和抗MCV抗体,并应用R0C曲线比较两者对RA的诊断价值。结果：RA组血清抗CCP抗体和抗MCV抗体水平（中位数）分别为120.0 U/mL和501.0 U/mL,分别与其他风湿病组（分别为12.5 U/mL和23.0 U/mL）和健康对照组（分别为12.0 U/mL和20.5 U/mL）比较,差异均有统计学意义（P〈0.01）。抗CCP抗体单项检测、抗MCV抗体单项检测、抗CCP抗体＋抗MCV抗体按序列实验联合检测和按平行试验联合检测诊断RA的敏感度分别为68.1%、72.3%、53.2%和83.0%,特异度分别为88.9%、87.5%、91.7%和84.7%,Youden指数分别为0.570、0.598、0.449和0.677。结论：抗MCV抗体同抗CCP抗体一样对RA有较高的诊断价值,以111.0 U/mL为界值点,对RA诊断的正确率更高,联合检测可弥补单项抗体检测造成的RA漏诊,按平行试验联合检测抗MCV抗体和抗CCP抗体对RA的诊断有很大的临床价值。     

血清学阴性类风湿关节炎关节液中抗环瓜氨酸肽抗体、抗突变型瓜氨酸波形蛋白抗体的测定及临床意义

目的：检测血清学阴性类风湿关节炎(serum negative rheumatoid arthritis,SNRA)患者的关节液中抗环瓜氨酸肽（cyclic citrullinated peptide,CCP）抗体、抗突变型瓜氨酸波形蛋白（mutated citrullinated vimentin, MCV）抗体水平,了解关节液中这两种抗体对诊断SNRA的临床意义。方法: 应用酶联免疫吸附测定（enzyme linked immunosorbent assay, ELISA）法检测两组患者膝关节液中抗CCP抗体和抗MCV抗体,实验组为SNRA患者,共29例,对照组为骨关节炎（osteoarthritis,OA）患者,共28例,并收集两组患者的临床表现及实验室指标。结果: 实验组29例SNRA患者膝关节液中抗CCP抗体阳性者10例（34.5%）,测定值为（114.5±62.6） U/mL;抗MCV抗体阳性者6例（20.7%）,测定值为（32.0±11.3） U/mL;对照组28例OA患者膝关节液中3例抗CCP抗体阳性（10.7%）,测定值为（20.6±0.1） U/mL,2例抗MCV抗体阳性（7.1%）,测定值为（22.1±1.7） U/mL。SNRA组关节液抗CCP抗体的阳性率显著高于对照组（34.5% vs.10.7%, χ2=4.571, P＜0.05）;SNRA组关节液抗MCV抗体的阳性率高于对照组（20.7% vs.7.1%, χ2=2.167, P＞0.05）,但差异无统计学意义;抗CCP抗体在SNRA中的敏感性为34.5%,特异性为89.3%,阳性预测值为76.9%,阴性预测值为56.8%;抗MCV抗体敏感性为20.7%,特异性为92.9%,阳性预测值为75.0%,阴性预测值为53.1%;膝关节液中抗CCP抗体和抗MCV抗体两者联合检测的敏感性为48.0%,特异性为82.8%,SNRA关节液抗CCP抗体阳性组、抗MCV抗体阳性组与各自阴性组相比较,在年龄、病程和晨僵方面差异均无统计学意义,而膝关节液抗CCP抗体阳性组和抗MCV抗体阳性组红细胞沉降率（erythrocyte sedimentation rate, ESR）、C反应蛋白（C-reactive protein,CRP）和28个关节的疾病活动评分（the disease activity score in 28 joints,DAS28）均比各自阴性组高(P均<0.01)。抗CCP抗体与ESR和CRP之间呈正相关(r=0.567, P<0.01; r=0.664, P<0.01);抗MCV抗体与ESR和CRP之间呈正相关(r=0.344, P<0.01; r=0.749, P<0.01) 。结论: SNRA关节液抗CCP抗体和抗MCV抗体联合检测有助于SNRA诊断和疾病活动的判断。     

抗环瓜氨酸肽抗体对类风湿关节炎的诊断价值

目的：探讨抗环瓜氨酸肽（cyclic citrullinated peptide,CCP）抗体在类风湿关节炎（rheumatoid arthritis,RA）患者中的水平变化及临床应用价值。方法：收集RA患者血清68例,并以68例非RA患者血清作对照。采用双抗体夹心酶联免疫吸附法测定血清抗-CCP抗体,同时检测特种蛋白类风湿因子（RF）,进行统计学分析。结果：抗-CCP抗体的特异性（95．6％）明显高于RF（69．1％）,RA组患者两项指标的阳性率明显高于非RA组患者（P〈0．01）。RF诊断RA的敏感性（80．9％）高于抗-CCP抗体（77．9％）,但差异无统计学意义（P〉0．05）。联合检测敏感性（47．1％）较单独检测有所减低,但特异性增高明显,高达100．0％。结论：抗-CCP抗体在诊断RA中有很高的特异性,联合检测RF可以早期诊断RA,提高RA诊断率。动态监测抗-CCP抗体,RF有助于观察RA病情变化。     

抗CCP抗体、抗MCV抗体与RF检测在早期类风湿关节炎诊断中的价值

目的探讨抗环瓜氨酸肽（CCP）抗体、抗突变型瓜氨酸波形蛋白（MCV）抗体和类风湿因子〈RF）在早期类风湿关节炎诊断中的价值。方法采用酶联免疫吸附法（ELISA）检测172例早期RA者及43例健康对照者抗MCV抗体水平、电化学发光法测定抗CCP抗体,免疫散射比浊法测RF,比较抗MCV抗体、抗CCP抗体、RF对RA的敏感性和特异性。进一步比较RA组血清和滑膜液抗CCP抗体、抗MCV抗体的表达情况。结果抗MCV抗体对RA的敏感性和特异性分别为。79．07％、100％;抗CCP抗体对RA的敏感性和特异性分别为85．47％、95．35％;RF对RA的敏感性和特异性分别为71．52％、83．72％。RA组滑膜液与血清抗CCP抗体和抗MCV抗体阳性率差异均无统计学意义（P〉0．05）。结论抗CCP抗体、抗MCV抗体在RA患者中有较高的特异性,临床诊断价值超过了RF;临床取样血液检测抗CCP抗体、抗MCV抗体与取样膝关节滑膜液的阳性率相似,但更方便。     

抗环瓜氨酸肽抗体在类风湿关节炎中的诊断价值

目的:探讨抗环瓜氨酸肽抗体在类风湿关节炎(RA)中的诊断价值。方法:用酶联免疫吸附法测定抗-ccp,用免疫比浊法检测RF。结果:300例RA患者抗-ccp和RF阳性率分别为63.3%和68%;200例非RA患者抗-ccp和RF阳性率分别为1.5%和15%;抗-ccp和RF对诊断的特异性分别为98.2%和85.1%。两者联合时特异性达到97.5%。结论:抗-ccp在RA诊断中有良好的敏感性和特异性。两者联合更能提高RA诊断的准确性。     

抗突变型瓜氨酸波形蛋白抗体在幼年特发性关节炎中的诊断意义

目的 通过检测幼年特发性关节炎（JIA）患者血清中的抗突变型瓜氨酸波形蛋白（MCV）抗体,探讨其在JIA诊断方面的应用价值.方法 采用ELISA法检测87例JIA患者,55例非JIA对照,30例成人RA患者血清中的抗MCV抗体,进行组间比较.结果 JIA组患者中,抗MCV抗体的敏感性和特异性分别为44.8％和98.2％,与非JIA对照组比较差异有统计学意义（P＜0.01）,其中多关节型及少关节型与非JIA对照组比较差异亦有统计学意义（P＜0.01）.在JIA组患者中抗MCV抗体、抗CCP抗体、RF和AKA的敏感性分别为44.8％,35.6％,14.9％和10.3％,抗MCV抗体的敏感性明显高于RF和AKA,差异有统计学意义（P＜0.05）.结论 抗MCV抗体在JIA患者中的敏感性虽不及成人RA,但对JIA的诊断仍具有较高的敏感性和特异性,特别是对多关节型和少关节型JIA的诊断更有价值.     

抗环瓜氨酸肽抗体及类风湿因子对诊断类风湿关节炎的意义

目的评价抗环瓜氨酸肽抗体（抗CCP抗体）在类风湿关节炎（RA）诊断中的意义。方法收集临床确诊的80例RA患者、56例非RA自免病患者和126例健康体检者的血样标本,同时以ELISA法检测抗CCP抗体,以散射比浊法检测类风湿因子IgM-RF。结果IgM-RF和抗CCP抗体诊断RA的敏感性分别为78.75%和67.75%,抗CCP抗体和RF诊断RA的特异性分别为97.62%和65.85%。抗CCP抗体和lgM-RF两者均阳性诊断RA的特异性（99.20%）高于单独检测IgM-RF（P〈0.05）。结论抗CCP抗体、RF均是RA良好的血清学诊断指标,两者有相关性,联合检测可提高RA诊断的准确性。     

抗环瓜氨酸抗体在类风湿关节炎诊断中的临床意义

目的:探讨抗环瓜氨酸肽抗体(抗CCP抗体)在类风湿关节炎(RA)诊断中的意义.方法:收集90例RA和80例非RA风湿病患者血清标本.采用EL ISA方法检测抗CCP抗体,免疫比浊法检测类风湿因子(RF)水平.结果:RA组血清抗CCP抗体和RF阳性率分别为62.2%、81.1%;抗CCP抗体和RF对RA诊断的特异性分别为...     

类风湿因子及抗环瓜氨酸肽抗体联合检测诊断类风湿关节炎的价值分析

目的分析类风湿因子(RF)及抗环瓜氨酸肽(CCP)抗体联合检测诊断类风湿关节炎的临床应用价值。方法选取2017年5月—2018年9月本院收治的136例类风湿关节炎患者和非类风湿关节炎患者84例作为研究对象,。清晨空腹采集入选患者肘静脉血5 ml,离心处理后采用双光径免疫比浊法检测RF水平;采用电化学发光法检测抗CCP抗体水平。比较两组RF及抗CCP抗体浓度、检出类风湿关节炎的阳性率及诊断效能。结果类风湿关节炎组RF及抗CCP抗体浓度均高于非类风湿关节炎组,差异有统计学意义(P<0.05);类风湿关节炎组RF、抗CCP抗体单独及其联合检测的阳性率均高于非类风湿关节炎组,差异有统计学意义(P<0.05);联合检测的灵敏度和特异度均优于RF、抗CCP抗体单独检测,差异有统计学意义(P<0.05)。结论 RF及抗CCP抗体联合检测诊断类风湿关节炎具有较高的临床价值,有助于尽早的明确病情,并展开治疗,利于促进患者预后恢复。     

抗突变型瓜氨酸波形蛋白抗体对类风湿关节炎的诊断价值

目的 探讨抗环瓜氨酸肽抗体（anti-cyclic citrullinated peptide antibody,抗CCP抗体）、抗突变型瓜氨酸波形蛋白抗体（anti-mutated citrullinated vimentin antibody,抗MCV抗体）和25-羟维生素D[25-hydroxyvitamin D,25(OH)D]在类风湿关节炎（rheumatoid arthritis,RA）中的临床诊断价值。方法 选取2016年8月至2021年11月南京医科大学附属淮安第一医院收治的466例RA患者纳入RA组,非RA的其他自身免疫性疾病及代谢性疾病患者100例纳入非RA组,健康体检者100人纳入对照组,检测三组受试者的血清抗CCP抗体、抗MCV抗体和25(OH)D水平,绘制受试者操作特征曲线分析抗CCP抗体、抗MCV抗体、25(OH)D对RA的诊断效能,分析RA患者抗MCV抗体与各临床指标的相关性。结果 RA组患者的血清抗MCV抗体和抗CCP抗体显著高于非RA组和对照组（P<0.05）;RA组患者的血清25(OH)D水平显著低于对照组（P<0.05）;抗CCP抗体、...     

Pattern of drugs use and association with anti-mutated citrullinated vimentin antibody in rheumatoid arthritis

Objectives:

To demonstrate the pattern of disease-modifying antirheumatic drugs (DMARDs) use in Saudi and non-Saudi rheumatoid arthritis (RA) patients, and to evaluate the association of DMARDs use with anti-mutated citrullinated vimentin (anti-MCV) positivity and other factors.

Methods:

Retrospectively, for a period of 7 years (2007-2014), we studied 205 RA patients, at King Abdulaziz University Hospital (KAUH), Jeddah, Saudi Arabia. All patients used DMARDs. Pattern of use for all 6 DMARDs was almost the same among Saudis and non-Saudis with no significant difference (p>0.05) for each DMARD; MTX was the most commonly used DMARD (71-76%).

Results:

There was no association between anti-MCV positivity and different DMARDs use. Methotrexate was used 76 times as combination, scoring the highest in this respect. There was a significant correlation (p<0.05) between Plaquenil with Methotrexate and with Sulfasalazine; Leflunomide with anti-TNF and with Prednisolone; age with Methotrexate and with Plaquenil; anti-MCV positivity with Prednisolone. Saudi/non-Saudi status showed no correlation with all factors or drugs. There was no significant association between DMARDs and comorbidity.

Conclusion:

Similar to worldwide results, MTX was the most commonly used DMARD; with the addition of anti-TNF to increase the effect, and folic acid to minimize the side effects. In this cohort, the pattern of use for all DMARDs was similar among Saudis and non-Saudis; treatment depended neither on anti-MCV positivity nor on the presence of comorbid conditions. A study of the association of DMARDs with disease activity is recommended.The effective treatment of rheumatoid arthritis (RA) can be achieved by disease-modifying antirheumatic drugs (DMARDs) that decrease joint damage with improvement of symptoms and functional abilities.1 The DMARDs have been classified into synthetic (sDMARDs) and biological.2 The sDMARDs are traditional drugs; such as methotrexate (MTX), sulfasalazine, leflunomide, and hydroxychloroquine (Plaquenil).2 The sDMARDs also include synthetic glucocorticoids (such as Prednisolone).3 If an sDMARDs is not effective after a trial of 3 months,4 they are usually combined with a biological DMARD, such as tumor necrosis factor alpha (TNF-α) blockers.1 To achieve disease remission in approximately 50 of people and improved overall outcomes, the DMARDs should be started very early in the disease.5 The frequently used DMARDs include MTX (the most commonly used one), Plaquenil (hydroxychloroquine), Azulfidine (sulfasalazine), and Arava (leflunomide), either as monotherapy, or in combination.1 Methotrexate is the most commonly used DMARD wordwide,6,7 and is the first line of treatment;8-10 even according to the treatment guidelines from the American College of Rheumatology (2012),11 and the European League Against Rheumatism (2010).12 Methotrexate is usually combined with folic acid (a vitamin),13 in order to reduce its adverse effects including nausea, vomiting or abdominal pain (gastrointestinal), hematologic, pulmonary, and hepatic.10 Methotrexate is teratogenic, thus, pregnancy should be avoided.8,10 Prednisolone (a synthetic glucocorticoids) can be used in the short term, while waiting for slow-onset drugs to take effect,1 and also as an injections into individual joints.1 Although its long-term use reduces joint damage, it also results in osteoporosis and susceptibility to infections, and thus is not recommended.1 A better effect can be achieved by combining MTX with anti-TNF than with MTX monotherapy.14 The response rate is better when switching from MTX monotherapy to MTX plus anti-TNF than combined DMARDs to MTX plus anti-TNF.14 In this study, our aim was to determine the pattern of disease modifying antirheumatic drugs use, and their association with anti-mutated citrullinated vimentin antibody (anti-MCV) in rheumatoid arthritis patients.     

抗环瓜氨酸肽抗体和RF对类风湿性关节炎的诊断价值

目的 探讨抗环瓜氨酸肽抗体(抗CCP抗体)及类风湿因子(RF)的检测对类风湿性关节炎(RA)的诊断价值.方法 分别用ELISA法、速率散射比浊法检测45例RA患者和63例非RA的风湿病患者血抗CCP抗体和RF.结果 抗CCP抗体对RA的敏感性和特异性分别为80.0%和93.7%.RF对RA的敏感性和特异性分别为75.6%和77.8%.结论 抗CCP抗体对RA具有较好的敏感性和很高的特异性,联合抗CCP抗体和RF可以提高诊断的准确性,对RA的早期诊断具有重要意义.     

抗环瓜氨酸肽抗体在类风湿性关节炎的应用及临床意义

目的　探讨抗环瓜氨酸肽 (CCP)抗体在类风湿性关节炎 (RA)诊断中的意义。　方法　应用抗 CCP抗体 EL ISA试剂盒检测 5 8例 RA患者和 5 5例非 RA患者血清抗 CCP抗体。比较 RA组与非 RA组抗 CCP抗体与抗角蛋白抗体 (AKA )、类风湿因子 (RF)水平和阳性率差异 ;比较 RA组抗 CCP抗体与 AKA、RF阳性率的差异及相关性。　结果　抗 CCP抗体对 RA的敏感性和特异性分别为 75 .9%和 96 .4 % ;RA组抗 CCP抗体、AKA、RF水平和阳性率均显著高于非 RA组 (P<0 .0 1 ) ;RA组抗 CCP抗体阳性率明显高于 AKA(P<0 .0 1 ) ,二者具明显相关性 (P<0 .0 1 ) ;抗 CCP抗体阳性率与 RF差异无显著性 (P>0 .0 5 ) ,亦不具相关性 (P>0 .0 5 )。　结论　抗 CCP抗体对 RA的敏感性和特异性高 ,是诊断 RA的一项良好血清学指标 ,具有临床应用价值     

抗CCP抗体和RF对类风湿性关节炎诊断价值的比较

目的 评价抗环瓜氨酸肤(CCP)抗体和类风湿性关节炎因子(RF)在类风湿性关节炎(RA)中的意义.方法 90例RA患者、30例其他疾病患者和35例健康对照组血清用ELISA法检测抗CCP抗体、免疫散射比浊法检测RF,比较两种抗体单独或联合检测对诊断RA的敏感性、特异性、阳性预测值、阴性预测值、总符合率及Youden指数;通过绘制ROC曲线,计算ROC曲线下面积(AUC)探讨抗CCP抗体和RF的相关性.结果 RA组抗CCP抗体和RF阳性率均高于其他疾患者和健康对照组(P<0.0125);RF诊断RA的敏感性高于抗CCP抗体;抗CCP抗体对诊断RA的其他5项指标均高于RF;抗CCP抗体和RA联合检测对RA的诊断的敏感性明显高于抗CCP抗体、RF两项检测指标;另外,抗CCP抗体和RA联合检测对RA的诊断的阴性预测值,总符合率及Youden指数也高于抗CCP抗体、RF两项检测指标.抗CCP抗体、RF及两者联合检测ROC曲线下面积(AUC)均>0.5,并且抗CCP抗体与RF联合检测AUC大于抗CCP抗体及RF的AUC.结论 抗CCP抗体对RA有较高的诊断价值,和RF联合检测对诊断RA有重要意义.     

抗CCP抗体对关节疾病患者类风湿关节炎的诊断价值研究

目的探讨抗CCP抗体对类风湿关节炎（RA）的诊断价值。方法法对因关节疼痛就诊的住院患者,同时进行血清抗CCP抗体和类风湿因子（RF）检测。结果209例患者中,被确诊为RA的患者89例（42.6%）。抗CCP抗体诊断RA的灵敏度为84.3%、特异性为94.2%;RF的灵敏度为78.7%、特异性为69.2%;以抗CCP抗体或RF任一阳性联合诊断RA,其灵敏度和特异性分别为87.6%和69.2%;而以抗CCP抗体和RF均为阳性联合诊断RA,其灵敏度和特异性分别为74.2%和94.2%。其中,RF和以抗CCP抗体或RF任一阳性联合诊断RA的特异性均显著低于抗CCP抗体（均为P〈0.01）。结论抗CCP抗体对RA的诊断准确性显著优于RF;二者联合检测对RA的诊断准确性稍有提高,但与抗CCP抗体单独检测的差别不大。