scholarly journals 14-3-3η Protein as a Potential Biomarker in Juvenile Idiopathic Arthritis

2021 ◽  
Vol 13 (1) ◽  
pp. 65-71
Author(s):  
Austin Dalrymple ◽  
Paul Tuttle ◽  
Lance Feller ◽  
Olga Zhukov ◽  
Robert Lagier ◽  
...  
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Lupus Erythematosus ◽  
Healthy Controls ◽  
Reactive Protein ◽  
Potential Biomarker ◽  
Potential Clinical Utility ◽  
Poor Outcomes ◽  
Citrullinated Peptide ◽  
Archival Specimens ◽  
Control Study

The 14-3-3η (eta) protein was evaluated as a biomarker in a cohort of patients with juvenile idiopathic arthritis (JIA), as well as disease- and healthy-controls, to determine its potential clinical utility. In this case-control study, levels of 14-3-3η protein were evaluated in archival specimens from patients with JIA, systemic lupus erythematosus (SLE), and rheumatoid arthritis (RA), as well as healthy pediatric controls. Just over 200 patients were evaluated, using specimens banked between 1990 and 2011. Comparisons were made to complete blood cell count (CBC), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor (RF), anti-cyclic citrullinated peptide (anti-CCP) antibodies, and anti-nuclear antibody (ANA) positivity. 14-3-3η at levels 0.2 ng/mL or higher was considered positive. Fisher’s exact tests, odds ratios, 95% confidence intervals, and p-values were reported. 14-3-3η positivity was seen in all included JIA subtypes. The rate of positivity was the highest in RF-positive (pos) polyarticular JIA. In the disease and healthy controls, lower rates of positivity were observed. The frequency of 14-3-3η positivity among RF-positive and RF-negative (neg) polyarticular JIA patients, especially at values ≥0.5 ng/mL (associated with poor outcomes in adults), was also highest. Several JIA patients with 14-3-3η positivity developed RF and anti-CCP positivity later in their disease. Significant levels of 14-3-3η can be found in approximately 30% of RF-pos and RF-neg patients with polyarticular JIA. This protein may represent a new biomarker for polyarticular JIA, particularly RF-neg polyarticular JIA.

scholarly journals Anti-CCP Antibody Levels Are Not Associated with MS: Results from a Case-Control Study

2015 ◽  
Vol 2015 ◽  
pp. 1-4 ◽  
Author(s):  
Mahmut Alpayci ◽  
Aysel Milanlioglu ◽  
Veysel Delen ◽  
Mehmet Nuri Aydin ◽  
Huseyin Guducuoglu ◽  
...  
Keyword(s):  
Case Control Study ◽  
Critical Role ◽  
Positive Association ◽  
Case Control ◽  
Enzyme Linked Immunosorbent Assay ◽  
Healthy Controls ◽  
Citrullinated Proteins ◽  
Antibody Levels ◽  
Citrullinated Peptide ◽  
Control Study

Citrullinated proteins have been suggested to play a critical role in the pathogenesis of multiple sclerosis (MS). Anticyclic citrullinated peptide (anti-CCP) antibody is used in the early diagnosis of rheumatoid arthritis (RA). The objective of this study was to investigate the presence of anti-CCP antibody in patients with MS compared to RA patients and healthy controls. Fifty patients with MS (38 females, 12 males; mean age 36.72 ± 8.82 years), 52 patients with RA (40 females, 12 males; mean age 40.87 ± 10.17 years), and 50 healthy controls (32 females, 18 males; mean age 38.22 ± 11.59 years) were included in this study. The levels of serum anti-CCP antibody were measured using an enzyme-linked immunosorbent assay (ELISA). The results of the study showed that anti-CCP antibody levels were significantly higher in RA patients versus MS or healthy controls(P<0.001). Moreover, anti-CCP antibody was positive in 43 (83%) patients with RA, while it was negative in all MS patients as well as in all healthy controls. Also, no significant correlation was found between the anti-CCP levels and EDSS scores(r=-0.250). In conclusion, the results of this study did not support a positive association between serum anti-CCP antibody and MS.

scholarly journals Evaluation of the serum β2 Microglobulin level in patients with systemic lupus erythematosus and its correlation with disease activity

BioMedicine ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 16 ◽  
Author(s):  
Miramir Aghdashi ◽  
Simak Salami ◽  
Ahmad Nezhadisalami
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Disease Activity ◽  
Lupus Erythematosus ◽  
Statistical Tests ◽  
Systemic Lupus ◽  
Β2 Microglobulin ◽  
Reactive Protein ◽  
Significant Difference ◽  
Control Study

Background: Designation of disease activity is serious for the management of systemic lupus erythematosus (SLE). Serum level of β2 microglobulin (β2M) may be associated with illness activity in SLE disease. Since the role of β2M for assessing of illness activity in SLE is not completely clear, the current study aimed to discern evaluation of β2M in patients with SLE and its correlation with sickness activity. Materials and Methods: In this case-control study, 50 patients with SLE disease and 25 healthy individuals were selected in Imam Khomeini Hospital in central of Urmia. Blood samples were collected safely from patients, serum was removed, and β2M measured using an ELISA method. The results for other parameters including C reactive protein, C3, C4, anti dsDNA and erythrocyte sedimentation rate were obtained from patients’ medical record. Data analyzed using appropriate statistical tests including Mann-Whitney U test, Independent f-test, Kruskal-Wallis, and Spearman used for analysis of data. Results: In the current study, a significant difference was seen between two groups in terms of β2M (p < 0.001). Remarkable correlation was seen between the level of β2M with disease activity (p < 0.001). Furthermore, there are significant relevancy between the level of β2M with 24-hour urine protein, ESR, disease activity score, and CRP (p < 0.05). Conclusion: The results revealed that serum amount of β2M in SLE patients is higher compared to healthy ones, which is significantly correlated to score of illness activity, CRP, and ESR in patients with SLE disease. Hence β2M might be an excellent serological marker helping the prediction of sickness activity and inflammation in SLE patients.

scholarly journals Citrulline Dependence of Anti-Cyclic Citrullinated Peptide Antibodies in Systemic Lupus Erythematosus as a Marker of Deforming/Erosive Arthritis

2009 ◽  
Vol 36 (12) ◽  
pp. 2682-2690 ◽  
Author(s):  
PRASANTHI KAKUMANU ◽  
ERIC S. SOBEL ◽  
SONALI NARAIN ◽  
YI LI ◽  
JUN AKAOGI ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Joint Involvement ◽  
Healthy Controls ◽  
Systemic Lupus ◽  
Cyclic Citrullinated Peptide ◽  
Erosive Arthritis ◽  
American College Of Rheumatology ◽  
Citrullinated Peptide ◽  
Peptide Antibodies

Objective.Anti-cyclic citrullinated peptide (CCP) antibodies are a serological marker for rheumatoid arthritis (RA); up to 10%–15% of patients with systemic lupus erythematosus (SLE) are also positive. While anti-CCP in RA is citrulline-dependent, anti-CCP in some other diseases is citrulline-independent and reacts with both CCP and the unmodified (arginine-containing) cyclic arginine peptide (CAP). We investigated the citrulline dependence of anti-CCP and its significance in the arthritis of SLE.Methods.IgG anti-CCP was compared by ELISA to anti-CAP in sera from patients with SLE (n = 335) and RA (n = 47) and healthy controls (n = 35). SLE patients were divided into 5 groups based on their joint involvement: subset I: deforming/erosive arthritis (n = 20); II: arthritis fulfilling (or likely fulfilling) American College of Rheumatology criteria for RA but without erosions (n = 18); III: joint swelling but not fulfilling RA criteria (n = 39); IV: arthritis without documented joint swelling (n = 194); and V: no arthritis (n = 58).Results.Anti-CCP (> 1.7 units) was found in 68% (32/47) of patients with RA and 17% (55/329) of those with SLE. It was more common in SLE patients with deforming/erosive arthritis (38%). High anti-CCP (> 10 units) was found in RA (26%) and deforming/erosive SLE (12%). High anti-CCP/CAP ratios (> 2, indicating a selectivity to CCP) were found in 91% of anti-CCP-positive RA and 50% of anti-CCP-positive SLE patients with deforming/erosive arthritis. Patients from subset II did not have high anti-CCP/CAP.Conclusion.Citrulline dependence or high levels (> 10) of anti-CCP were common in SLE patients with deforming/erosive arthritis, while most anti-CCP in SLE patients was citrulline-independent. This may be useful in identifying a subset of SLE patients with high risk for development of deforming/erosive arthritis.

scholarly journals Association between high mobility group box 1 protein and juvenile idiopathic arthritis: a prospective longitudinal study

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Dan Xu ◽  
Yu Zhang ◽  
Zhi-Yong Zhang ◽  
Xue-Mei Tang
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Longitudinal Study ◽  
High Mobility ◽  
Healthy Controls ◽  
C Reactive Protein ◽  
Prospective Longitudinal Study ◽  
Reactive Protein ◽  
Systemic Jia ◽  
Duration Of Disease ◽  
Prospective Longitudinal

Abstract Objective To analyze the levels of high mobility group box 1 (HMGB1) protein on different courses of juvenile idiopathic arthritis (JIA). Methods In our prospective longitudinal study, children with JIA were included with their blood samples collected at the first visit, 1-month, 3-month, and 6-month follow-up, respectively. Samples were also collected from healthy controls and children with reactive arthritis at the first visit. Levels of HMGB1 were determined using enzyme-linked immunosorbent assays. Clinical disease characteristics and routine laboratory findings were analyzed as well. Results A total of 64 children were enrolled, of whom 31 (48.4%) were female. The median age at the first visit for participants with JIA was 9.25 years (range, 1.42–15.42) and the median duration of disease was 2.38 months (range, 1.53–49.31). Serum HMGB1 levels at the first visit were significantly elevated in children with systemic JIA compared with other groups, and so were in enthesitis-related arthritis versus healthy controls. Significant correlations were established at the first visit between HMGB1 levels and duration of disease, C-reactive protein, percentage of neutrophils, and ferritin. Data from all samples revealed that serum HMGB1 levels in JIA were significantly associated with erythrocyte sedimentation rates, C-reactive protein, percentage of neutrophils, and disease activity scores. Conclusions Serum HMGB1 may be associated with clinical disease activity of JIA and specifically increased at the first visit in children with systemic JIA, suggesting its function as a sensitive inflammatory marker. Further large-scale studies are warranted to explore its spectrum in JIA.

scholarly journals Diagnostic utility of serum melatonin levels in systemic lupus erythematosus: a case-control study

Reumatismo ◽  
2017 ◽  
Vol 69 (4) ◽  
pp. 170 ◽  
Author(s):  
A.B. Rasheed ◽  
M.S. Daoud ◽  
F.I. Gorial
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Predictive Value ◽  
Case Control Study ◽  
Case Control ◽  
Healthy Controls ◽  
Systemic Lupus ◽  
Melatonin Concentration ◽  
Baseline Characteristics ◽  
Control Study

Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune inflammatory disease and early diagnosis is of clinical and therapeutic importance. Melatonin is an endogenous endolamine hormone that plays an important role in the immune system due to its anti-inflammatory action. This study was designed to assess serum melatonin levels in SLE patients and to evaluate the possible correlation between serum melatonin and patients’ baseline characteristics. A case-control study was performed on 50 SLE patients (48 females and 2 males), diagnosed according to the revised 1997 ACR Criteria, and 25 healthy controls (24 females and 1 male), matched by age and sex. Daily serum melatonin levels were investigated in all participants using human melatonin enzyme linked immunosorbent assay (ELISA) kit (MYBIOSOURCE (MBS), United States). Serum melatonin concentration was significantly lower in patients with SLE compared to healthy controls (19.17±6.86 pg/mL vs 23.26±6.71 pg/mL, p=0.017). Serum melatonin concentration ≤18.51 pg/mL was the optimum cut off value to differentiate between SLE patients and healthy controls with an accuracy of 69.3%, a sensitivity of 66%, and a specificity of 76%. The positive predictive value (PPV) at pretest 50% was 73.3% and PPV at pretest 90% was 96.1%; the negative predictive value (NPV) at 10% was 95.3%. Patients’ characteristics were not significantly correlated with serum melatonin concentrations using multiple logistic regression analysis. Serum melatonin was a valid measure to differentiate between SLE patients and healthy controls with good accuracy, sensitivity and specificity and PPV and NPV. There was no significant correlation between serum melatonin concentrations and patients’ baseline characteristics.

scholarly journals Combining C reactive protein and serum albumin to predict 90-day mortality in systemic lupus erythematosus with serious community-acquired infections

2021 ◽  
Vol 8 (1) ◽  
pp. e000505
Author(s):  
Shuangjun He ◽  
Chao Tang ◽  
Jie Yu ◽  
Jun Ma ◽  
Minjie Qiao ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Lupus Erythematosus ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Serious Infections ◽  
Adjusted Logistic Regression ◽  
Poor Outcomes ◽  
Independent Effects ◽  
Two Parameters ◽  
Serum Crp

ObjectiveSerious infections in SLE are common and have emerged as the major cause of death. However, effective methods to identify poor prognosis are still lacking. Therefore, we aimed to determine the predictive value of C reactive protein (CRP) plus albumin (ALB) in SLE with serious infections.MethodsFrom May 2015 to December 2018, consecutive patients with SLE presenting with serious infections in our emergency department were prospectively recruited. Serum CRP and ALB were measured within 24 hours of admission. The outcome was defined as mortality rate at 90 days. A CRP plus ALB score (2–6) was assigned based on the CRP and ALB concentrations. We performed univariate and multivariate regression analyses to detect the independent effects of CRP plus ALB on 90-day mortality (all-cause and infection-related). Subgroup analyses were used to show the effects stratified by lupus nephritis.ResultsA total of 150 patients were included, and the all-cause 90-day mortality rate was 38% (n=57), 41 of which was infection-related. The predominant infection sites were pulmonary (79.3%) and bloodstream infection (20.7%). Serum CRP and ALB levels were significantly different in non-surviving patients compared with those in surviving patients (p=0.002 and p<0.001, respectively). In the fully adjusted logistic regression model, the CRP plus ALB score was associated with decreased 90-day survival (adjusted OR 1.52; 95% CI 1.08 to 2.13; p=0.017).ConclusionsCRP plus ALB was associated with the risk of all-cause and infection-related 90-day mortality in SLE with serious infections. Although this finding requires further verification, the two parameters may be useful for predicting poor outcomes in such patients.

scholarly journals Plasma Interleukin-37 Is Elevated in Patients with Rheumatoid Arthritis: Its Correlation with Disease Activity and Th1/Th2/Th17-Related Cytokines

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ting Xia ◽  
Xing-feng Zheng ◽  
Bao-hua Qian ◽  
He Fang ◽  
Jun-jie Wang ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Joint Disease ◽  
Healthy Controls ◽  
Suspension Array ◽  
Gm Csf ◽  
Reactive Protein ◽  
Potential Biomarker ◽  
Anti Inflammatory Cytokine

Interleukin- (IL-) 37 is a novel anti-inflammatory cytokine that suppresses immune response and inflammation. This study was performed to determine whether IL-37 was elevated in patients with rheumatoid arthritis (RA) and investigate the correlation between IL-37 level and disease activity and the concentration of Th1/Th2/Th17-related cytokines. Clinical parameters of disease activity, including the 28-joint disease activity score (DAS28) and C-reactive protein (CRP), were collected in 34 RA patients and 34 age- and sex-matched healthy controls. Plasma IL-37 was measured by ELISA. Plasma levels of TNF-α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12, IL-13, IL-17, G-CSF, GM-CSF, IFN-γ, MCP-1, and MIP-1βwere analyzed using the Bio-Plex suspension array system. It was found that IL-37 levels were elevated markedly in RA patients and almost undetectable in healthy controls. In addition, IL-37 levels in patients with active RA were significantly enhanced as compared with those in patients of remission. More importantly, IL-37 showed a significant correlation with disease activity (DAS28) and IL-4, IL-7, IL-10, IL-12, and IL-13 concentrations in RA patients. These findings suggest that IL-37 plays an important role in the pathogenesis of RA and may prove to be a potential biomarker of active RA.

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