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Objective:To explore the impact of clinical features, serological indicators, and pulmonary function test (PFT) on the prognosis of rheumatoid arthritis-associated interstitial lung disease (RA-ILD).Methods:Clinical data of RA-ILD patients who were diagnosed by HRCT and were followed up in Changhai Hospital or Yancheng First People's Hospital from 2011 to 2021 were collected Respiratory functional impairment of the patients was evaluated according to the changes of HRCT score and PFT, and the patients were divided into progressive group and stable group. COX survival analysis and ROC curve were used to determine the factors related to the progression of RA-ILD.Results:Finally 98 RA-ILD patients were included. The mean age of ILD onset was (62.9±12.1) years old, the median course of RA was 7.0 (1.0, 15.3)years, and the median follow-up time was 36.5 months (14.0, 79.5). There were 49 cases in the progressive group, and the clinical characteristics and laboratory tests of the two groups were compared. The results showed that: progressive time [(23(8.5,43.0)months vs 63(32.5,90.9) months, Z=-4.55, P=0.001)], HRCT score [(115(109,135) vs 111(105,116), Z=-2.70, P=0.007)], forced vital capacity(FVC) predicted [(70.1±15.7)% vs (80.8±19.7)%, t=2.12, P=0.039)], diffusing capacity of the lungs for CO(DLCO) predicted [(57.5±16.3)% vs (83.4±18.8)%, t=4.87, P=0.001)], male [(44.9% vs 18.4%, χ2=7.97, P=0.005)], UIP pattern [(36(73.5%) vs 9(18.4%), χ2=29.96, P<0.001)], RF>200 U/ml[(21(65.6%) vs 18(41.9%), χ2=4.15, P=0.042)], anti-CCP>75 U/ml [(42(91.3%) vs 35(71.4%), χ2=6.10, P=0.013], all had significantly different between the two groups. In multivariate analyses, UIP[ HR(95% CI)=3.25(1.62,6.50), P<0.001], anti-CCP antibody >75 U/ ml[ HR(95% CI)=3.85 (1.20,12.33), P=0.023] and smoking [ HR (95% CI): 5.74(1.10, 30.13), P=0.039] were significantly correlated with the progression of pulmonary fibrosis in RA-ILD patients. PFT was performed in only 44 patients with RA-ILD. The univariate analyses and ROC curve suggested that DLCO predicted [ HR (95% CI)=1.04 (1.02,1.06), P<0.001] was a significant risk factor for the progression of RA-ILD, and the area under curve (AUC) of DLCO was 0.845 [95% CI=(0.729,0.961)]. Conclusion:UIP pattern, high titer of anti-CCP antibody, smoking, and reduced DLCO predicted % may be potential predictors for poor prognosis of RA-ILD patients.
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Patients with moderate to severe dry eyes are often screened at the Dry Eye Clinic to rule out connective tissue diseases. Rheumatoid factor (RF) is one of the screening tools to rule out rheumatoid arthritis (RA). Patients who turn out positive for the RF are often subjected to anti-CCP antibody evaluation for confirmation of disease. This article tries to highlight 3 cases of negative and anti-CCP antibody positive cases which presented to the ophthalmic clinic, unaware of their systemic status. Though RF is the cheapest modality to screen for RA, it is not always a reliable marker. One should order anti-CCP antibody for patients where suspicion is high, despite RF being normal.
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Background: Rheumatoid arthritis is a chronic autoimmune inflammatory disease with articular and extra-articular manifestation that affects 0.5 to 1 % of total population. Aim and Objectives: To correlate Rheumatoid factor (RF) and Anti-CCP antibody in RA, to evaluate prognostic value of RF and Anti-CCP antibody in RA. Materials and methods: Retrospective study of total 50 patients admitted to our hospital from January 2018 to December 2018 was done. All patients were diagnosed as rheumatoid arthritis as per diagnostic criteria of American College of Rheumatology. All patients had symptom duration of at least one Year. Anti-CCP and lgM-RF were evaluated in all patients. Disease activity score 28 was calculated in all patients. Radiological Damage was assessed by Larsen Score. Results: Anti-CCP and RF were significantly correlated with each other and both were seen as significant independent predictors of radiological outcomes (p value 0.01 and <0.05 respectively). Combination of these two had highest risk for erosive joint damage. Conclusion: RA is more common in female. Anti-CCP antibody and RF both in combination were associated with higher probabilities of erosive disease.
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Objective To investigate the value of serum anti-CCP antibody and TNF-α in the diagnosis and therapeutic effect evaluation of rheumatoid arthritis(RA).Methods One hundred and sixty-eight RA patients in our hospital from January 2012 to December 2015 were selected and included 86 cases of active stage(active group)and 80 cases of remission stage(remission group).Other 80 outpatient healthy controls served as the control group.The levels of RF,anti-CCP antibody and TNF-α in the active group,remission group and control group were measured by using the immunoadsorption and ELISA.Then the detection results were analyzed.Results The serum anti-CCP antibody and TNF-α levels in the active group and remission group were higher than those in the control group,moreover the serum anti-CCP antibody and TNF-α levels in the active group were significantly higher than those in the remission group,the difference was statistically significant(P＜0.05).Comparing the RA patients with the control group,the sensitivity and specificity of combined detection of anti-CCP antibody and TNF-α was 73.8％ and 97.5％,which were higher than those of other 2-index combined detection,the difference was statistically significant(P＜0.05).The serum TNF-α level was positively correlated with the DAS28 score(P＜0.01).Conclusion The combined detection of serum anti-CCP antibody and TNF-α has an important clinical value for the RA diagnosis and disease condition monitoring.
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Objective To explore the value of human leucocyte antigen-DR53 (HLA-DR53),anti-Sa antibody and anti-cyclic citrullinated peptide antibody(anti-CCP) factors combination in rheumatoid arthritis.Methods 170 patients with rheumatoid arthritis and 50 healthy individuals in the hospital were chosen.The levels of HLA-DR53 by PCR-SSP,the levels of anti-Sa and anti-CCP by ELISA,compared their diagnostic value by consistency analysis and joint detection analysis.Results The sensibility of anti-Sa,HLA-DR53 and anti-CCP in RA were 44.07％ (P =0.00,x2 =165.214),68.65 ％ (P =0.00,x2 =9.837) and 79.45 ％ (P=0.00,x2=48.028).Consistency analysis in RA,HLA DR53,anti-CCP and anti-Sa highly consistent,OR were 3.94,38.6 and 184.52.The sensitivity and Youden index of anti-CCP were the highest.The sensitivity of anti Sa and anti-CCP parallelled was 88.51 ％.The sensitivity of HLA-DR53 and anti-CCP parallelled was 93.56％,and the spe cificity of anti-Sa and anti-CCP of RA were 100％.Conclusion There is a certain correlation between HLA-DR53,anti-Sa and anti-CCP antibody,which are related risk factors of RA,co-detection will improve the diagnosis of RA.
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Objective To investigate the application value of combined detection of antikeratin (AKA) antibody,anti-cyclic citrullinated peptide(anti-CCP) antibody,anti-RA33 antibody,RF and ESR in the diagnosis of rheumatoid arthritis(RA).Methods One hundred cases of RA and 60 cases of suspected RA in our hospital from June 2014 to May 2015 were collected.One hundred and twenty cases of non-RA other autoimmune diseases served as the control group.The indirect immunofluorescence assay (IFA) was used to detect anti-KA antibody,anti-CCP antibody and anti-RA33 antibody were detected by using ELISA.The rate scatter turbid assay was used to detect RF.The Westergren method was used to detect ESR.The diagnostic performance of each diagnostic indicator was evaluated.Results The detection rates of anti-KA antibody,anti-CCP antibody,anti-RA33 antibody,RF and ESR in the RA group were in turn 64%,75%,44%,84% and 51% respectively,the detection rate(sensitivity) of 5-indicator parallel detection were 97%, the specificity of 5-indicator series detection was 89.2%;in the suspected RA group,the detection rates of 5-indicator were in turn 16.7%, 31.7%,13.3%,20%,15% respectively,which in the control group were in turn 0.8%,2.5%,1.7%,0.8% and 5.8% respectively.The detection rates of 5-indicator in the RA group was significantly higher than that in the suspected RA group,showing extremely significant difference (P<0.001),the detection rate of 5-indicator had extremely significant difference between the suspected RA group and control group (P<0.001),the sensitivity of five-indicator parallel detection was 97%,which was significantly higher than that of single indicator detection (P<0.05),the detection specificity of 5-indicator series detection was up to 100%,which was also significantly higher than that of single indicator detection (P<0.05),the missed diagnosis rate of parallel detection was minimal,while the negative predictive value was highest,the misdiagnosis rate of series detection was lowest,the positive predictive value was highest,the Youden index of parallel detection was largest.Conclusion The single detection of anti-CCP antibody and RF have good sensitivity and specificity, but 5-indicator combined detection has higher sensitivity and specificity,which can better reduce the missed diagnosis rate and misdiagnosis rate,can greatly improve the efficiency of diagnosis,and has an important clinical significance for the early diagnosis of RA.
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Objective To investigate any potential and independent demographic and serologic risk factors contributing to bone destruction in patients with rheumatoid arthritis ( RA) . Methods A total of 445 patients with RA were recruited in this study. Three autoantibodies including rheumatoid factor ( RF) , anti-cyclic citrullinated peptide antibody ( anti-CCP antibody) and anti-citrullinated alpha-enolase peptide 1 antibody ( anti-CEP-1 antibody) were quantified by using specific ELISA kits. The hand radiographs of all subjects were graded by using the modified Sharp/van der Heijde score ( Sharp score) . The potential and in-dependent risk factors were assessed by using univariate linear regression analyses and the stepwise multiple regression analysis, respectively. Results Based upon the univariate regression analyses, 7 covariates were identified as the potential risk factors for bone destruction in patients with RA, which were female (β=0. 100, P=0. 035), longer disease duration (β=0. 498, P=3. 26×10-29), RF (β=0. 096, P=0. 042), younger age at onset (β=-0. 312, P=1. 60 × 10-11 ), anti-CCP antibody positive (β=0. 202, P=1.74×10-5), anti-CEP-1 antibody positive (β=0.148, P=0.017) and positive for either anti-CCP or anti-CEP-1 antibodies (β=0. 157, P=1. 42×10-3). However, smoking (β=-0. 121, P=0. 018) were identi-fied as the potential protective factors. The multiple regression analysis indicated that the longer disease du-ration (P=2. 24×10-15) and anti-CCP antibody positive (P=0. 012) were independent risk factors for bone destruction. Conclusion Female, longer disease duration, younger age at onset, RF, anti-CCP and anti-CEP-1antibodies are potential risk factors for bone damage in patients with RA. Moreover, longer disease du-ration and anti-CCP antibody are two independent risk factors contributing to bone destruction in RA.
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Objective To compare diagnosis value and the clinical application of enzyme linked immunosorbent assay (ELISA) method and the immune turbidimetric method detecting serum anti cyclic citrullinated peptide (CCP)antibody in patients with RA.Methods Collected fresh serum specimen of 267 inpatients with RA in Rrheumatism Department of Xi’an Institu-te of Rheumatism from December 2014 to February 2015,and fresh serum specimen of 50 healthy blood donors from the Blood Center of Shaanxi Province respectively.Anti CCP antibody was detected by enzyme-linked immunosorbent assay (ELISA)method and the latex immunoturbidimetry assay.Evaluated the correlation of the results and clinical application to RA diagnosis.Results Sensitivity,specificity and diagnostic consistency of ELISA and latex immunoturbidimetry assay were 77.3%,86.8%,94.3% and 76.2%,80.2%,77.9% respectively.Compared two kinds of methods,the value of Kappa was 0.756,for having consistency.Throughχ2 test (χ2 =1.85,P >0.05),there was no significant difference between two meth-ods.Area of ELISA and lateximmunoturbidimetry under the ROC curve were 0.876 and 0.832 respectively.Conclusion De-tection of serum anti CCP antibody has diagnostic value in RA patients.The ELISA method and the latex immunoturbidime-try assay for detection of anti CCP antibodies had consistency.Two methods had no statistical difference,and the latex turbi-dimetric method is suitable for grassroots medical institutions.
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Objective To investigate the clinical application value of Anti -CCP antibody ( CCP) levels in patients with in rheumatoid arthritis ( RA) .Methods 132 patients with rheumatoid arthritis , 42 patients of other categories of connective tissue dis-ease, 40 health cases were collected as the research object.The anti-CCP antibody titers were detected in sera of three patients, and the anti CCP antibody in rheumatoid arthritis in the diagnostic process was calculated .Anti -CCP antibody titers were detected in three group patients, and the specific of anti CCP antibody in diagnosis of rheumatoid arthritis was counted .Results Anti-CCP an-tibody has high specificity for the diagnosis of rheumatoid arthritis , and was correlated with clinical symptoms in patients with rheuma-toid arthritis.Combination detection of anti -CCP antibody and C reaction protein can improve the diagnostic specificity , and the difference was statistically significant (p<0.05).Conclusion The specificity of anti-CCP antibody in diagnosis of rheumatoid ar-thritis is higher and its specificity is higher than that of RF .The combined detection of anti -CCP antibody and RF both can improve the diagnostic specificity of rheumatoid arthritis , and anti-CCP antibodies are related with the degree of clinical symptoms .
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This article was aimed to study the correlation between Mongolian medicine syndrome types of rheumatoid arthritis (RA) and indexes such as RF, ESR, CRP and anti-CCP antibody. Clinical epidemiology inquisition was used in this study. The Mongolian medicine syndrome types of 53 RA cases, which included Qi-Su-Xie-Ri type, Ba-Da-Gan-He-Yi type and Xie-Ri-Wu-Su type, were differentiated. Unified survey scale was designed. Indexes such as RF, CRP, ESR and anti-CCP antibody were detected. Data was recorded in details and statistical analysis was made. The results showed that compared with the Qi-Su-Xie-Ri type group, there were statistical significance on RF, ESR, CRP and anti-CCP antibody between the other two groups (P< 0.01). The order of RF, CRP and anti-CCP antibody from the highest to the lowest was Qi-Su-Xie-Ri type, Ba-Da-Gan-He-Yi type, and Xie-Ri-Wu-Su type. The order of ESR from the fastest to the slowest was Qi-Su-Xie-Ri type, Xie-Ri-Wu-Su type, and Ba-Da-Gan-He-Y i type. It was concluded that among Mongolian medicine syndrome types, levels of RF, ESR, CRP and anti-CCP antibody of Qi-Su-Xie-Ri type were the highest, which belonged to the active RA phase. Levels of the Ba-Da-Gan-He-Y i type and Xie-Ri-W u-Su type were relatively low, which belonged to the early, stable, or chronic RA phase.
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BACKGROUND/AIMS: Palindromic rheumatism (PR) is an episodic arthropathy that may precede typical rheumatoid arthritis (RA). The objective of this study was to determine whether anti-cyclic citrullinated peptide (anti-CCP) antibodies in patients with PR contribute to the progression to RA. METHODS: The study group included 115 patients who were initially diagnosed with PR. Baseline serum samples were stored and analyzed for the presence of anti-CCP antibodies, APF, and RF or for anti-CCP antibodies and HLA-DR4. A multiple logistic regression analysis was used to identify predictive factors for progression to RA. RESULTS: The anti-CCP antibodies APF and RF were found in 33.3%, 28.9%, and 35.7% of the 115 patients with PR, and 36 (31.3%) of these patients eventually progressed to RA. Comparing the risk factors for patients who progressed to RA (31.3%) and those who did not (68.7%), only the presence of anti-CCP antibodies was found to affect progression to RA (95% CI for OR, 0.0001-0.114; p<0.001). HLA-DR4-positivity was noted in 40% of the patients with PR, although it did not affect progression to RA and was not significantly associated with the presence of anti-CCP antibodies. CONCLUSIONS: Anti-CCP antibodies are found more frequently in patients with PR who eventually progress to RA. Therefore, anti-CCP antibody testing of patients with PR may facilitate prediction of progression to RA.
Subject(s)
Humans , Antibodies , Arthritis, Rheumatoid , HLA-DR4 Antigen , Logistic Models , Rheumatic Diseases , Risk FactorsABSTRACT
No abstract available.