Common Rheumatic Disease Research Articles

Successful resolution of refractory cystoid macular edema following tocilizumab therapy in a case of severe recalcitrant juvenile idiopathic arthritis-associated uveitis

Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease in children, with JIA-associated uveitis being the most frequent extra-articular manifestation. If inadequately treated, JIA-associated uveitis can lead to persistent macular edema, potentially causing blinding complications. Tocilizumab, a humanized monoclonal antibody against IL-6, binds to its receptors and inhibits the pro-inflammatory effects of IL-6. This study reports the case of a 30-year-old female with polyarticular JIA-associated uveitis for 24 years, suffering from bilateral refractory cystoid macular edema (CME) resistant to treatments such as corticosteroids, methotrexate, infliximab, adalimumab, and tofacitinib. She received an intravitreal dexamethasone implant in her right eye. Remission of JIA and resolution of CME were achieved with tocilizumab 162 mg subcutaneous injections, combined with low-dose corticosteroids. After 12 doses of tocilizumab, there was no evidence of active uveitis in either eye.

Key data elements for a successful pediatric rheumatology virtual visit: a survey within the PR-COIN network.

Juvenile idiopathic arthritis (JIA) is the most common childhood rheumatic disease which is commonly monitored by a combination of history, physical examination, bloodwork, and imaging. The COVID-19 pandemic prompted a rapid shift to telemedicine to ensure that patients continued to receive healthcare. The shift to telemedicine changed the methodology and ability of healthcare providers to monitor their patients' progress, as they were unable to perform direct hands-on assessments. The following survey sought to understand the impact of switching pediatric rheumatology healthcare delivery from in-person to telemedicine modality. Specifically, it sought to examine the rate of collection of critical data elements (CDE) for monitoring JIA disease activity and outcomes, barriers and facilitators to its collection, opinions on difficulty and importance of collecting CDE over telemedicine, tools and electronic medical record modifications that facilitated CDE collection, and other data elements that were important to collect during telemedicine visits. A cross-sectional survey was sent to healthcare providers at all PR-COIN centers who saw patients using telemedicine. Qualitative data was analyzed using descriptive statistics and qualitative data was analyzed using an inductive approach. Survey respondents reported that they documented the CDE at least 75% of the time. Barriers to assessing and documenting critical data elements included (1) the inability to palpate or visualize all joints over telemedicine, (2) connectivity issues, and (3) forgetfulness with collecting all CDE. Respondents suggested using reminders within the electronic medical record to prompt documentation completeness and improve reliability. They also suggested including medication adherence, quality of life, and patient/caregiver satisfaction with their telemedicine experience as part of their documentation. A few centers reported that they had established processes to assist with data collection in advance of the telemedicine visit; however, the variation in responses reflects the need to standardize the process of providing care over telemedicine. Multiple barriers and facilitators to collecting CDE during telemedicine visits exist. Given that a proportion of the population will continue to be seen over telemedicine, teams need to adapt their practices to consistently provide high-quality care over virtual platforms, ensuring that patients at any institution receive a standardized level of service.

Rheum for Improvement? Delayed Diagnosis of Juvenile Idiopathic Arthritis: A Narrative Review.

Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease of childhood and a disease for which we have safe and effective therapies. Early diagnosis of JIA enables timely initiation of therapy and improves long-term disease outcomes. However, many patients with JIA experience prolonged diagnostic delays and have a turbulent course to diagnosis. In this narrative review, we explore the importance of early diagnosis in JIA, what is known about time to diagnosis and diagnostic trajectory, and factors that contribute to delayed diagnosis. We also discuss next steps to improve time to diagnosis for these vulnerable patients.

Juvenile idiopathic arthritis management: insights into the utilization of intra-articular corticosteroid injections

ABSTRACT Background Juvenile idiopathic arthritis (JIA) is a common chronic rheumatic disease in children, requiring careful management to reduce both short- and long-term morbidity. In this study, our objective was to assess the clinical features of patients diagnosed with JIA who received intra-articular corticosteroid injections (IACI). Methods In this retrospective study, we evaluated the clinical and laboratory characteristics of 225 JIA patients monitored from January 2012 to October 2023 at a tertiary care center. We focused on patients who underwent intra-articular corticosteroid injections (IACI) as part of their treatment. Triamcinolone hexacetonide (TH) was used due to its demonstrated safety and efficacy. Results Our analysis revealed that IACI, particularly utilizing TH, was a widely employed and effective adjunct therapy, contributing to rapid symptom relief and local disease control. Patients receiving IACI exhibited earlier symptom onset, younger age at diagnosis, longer follow-up durations, and higher cumulative treatment burden (p < 0.001, p < 0.001, p < 0.01, p < 0.001 respectively). Despite inconclusive acute-phase reactants, a higher frequency of ANA positivity and elevated initial lymphocyte counts were associated with increased IACI use (p < 0.001, p < 0.001 respectively). Importantly, on a joint basis, a high percentage of arthritis remission following IACI underscores its efficacy and favorable safety profile. Conclusions Notably, the high percentage of arthritis remission achieved with intra-articular corticosteroid injections (IACI) on a joint-specific basis highlights its efficacy and favorable safety profile. A lymphocyte count exceeding 5000/mm3 at the time of diagnosis may serve as an early indicator for considering intra-articular steroid administration. These findings emphasize the need for nuanced and individualized treatment strategies in JIA management to optimize outcomes for affected children.

Causal association between common rheumatic diseases and arrhythmia: a Mendelian randomization study.

Observational studies have suggested a link between rheumatic diseases and arrhythmias. However, these studies have been limited by confounding factors and reverse causality, leaving the causal relationship between rheumatic diseases and arrhythmias uncertain. This study addresses this inquiry using genetic evidence. Selected single nucleotide polymorphisms (SNPs) from genome-wide association study (GWAS) data were employed as instrumental variables. Inverse variance weighting (IVW), MR-Egger regression, and the weighted median method were utilized in the two-sample Mendelian randomization analysis. Horizontal pleiotropy was identified and rectified through the MR-PRESSO test and MR-Egger regression. The stability and reliability of the Mendelian randomization results were appraised using the remain-one method, Cochran Q-test, and funnel plot. Odds ratios (OR) were utilized to assess the causal relationship between six rheumatic diseases and five types of arrhythmias. The Inverse Variance Weighted (IVW) method indicated a significant association between rheumatoid arthritis (RA) and an elevated risk of right bundle branch block (RBBB) (OR: 1.10, 95% CI: 1.02-1.18, p = 0.009). Additionally, gout was significantly correlated with an augmented risk of RBBB (OR: 1.28, 95% CI: 1.09-1.51, p = 0.003). Conversely, dermatomyositis (DM) exhibited a negative association with the risk of atrioventricular block (AVB) (OR: 0.94, 95% CI: 0.90-0.99, p = 0.020). No significant associations were observed between other rheumatic diseases and arrhythmias. A two-sample Mendelian Randomization (MR) study provides data indicating that in European populations, a genetically predicted gout or rheumatoid arthritis (RA) may increase the incidence of right bundle branch block (RBBB). To clarify and investigate the processes behind these causal links, more research is necessary. Because racial genetic variability exists, care should be used when interpreting our findings.

Infective endocarditis following percutaneous balloon mitral valvuloplasty: A case report of a 25-year-old female from Jimma Medical Center of Ethiopia.

Rheumatic mitral stenosis is a common rheumatic heart diseases in sub-Saharan Afrleading to increased morbidity and mortality. Percutaneous mitral balloon valvuloplasty is the mainstay of less invasive therapy in those with moderate to severe valve stenosis, being symptomatic despite optimal medical therapy. Though generally save with experienced hand and setup, post procedural complications include development of mitral regurgitation, tear and thrombosis. Mitral leaflet tear and development of infective endocarditis are an uncommon but might lead to increased morbidity, rehospitalization and mortality.

Causal associations of air pollution with rheumatoid arthritis: A transethnic Mendelian randomization study.

Rheumatoid arthritis is a common rheumatic disease, and its onset is closely related to genetic and environmental factors, however, the relationship between air pollution and RA is still hotly debated. Further investigation of the relationship between air pollution and rheumatoid arthritis is conducive to a comprehensive understanding of the risk factors of the disease, providing certain value for the clinical prevention and treatment of RA. We used a Two-Sample Mendelian Randomization approach, integrating the large-scale public genomewide association study, to assess the genetically predicted causal effect of air pollution (including: PM2.5, PM2.5-10, PM10, nitrogen dioxide, nitrogen oxides) on RA in European and European East Asian populations, respectively. Indicators related to air pollution (2,505 individuals to 423,796 individuals), including European and East Asian populations were obtained from the Integrative Epidemiology Unit open GWAS project. Published East Asian RA data were also obtained from the IEU open GWAS project (212,453 individuals), while large-scale publicly available European RA data were obtained from finngen R10 (13,621 cases and 262,844 controls). Inverse variance weighting was used as the primary analytical method, complemented by MR-egger, Weighed median, and Weighted mode results. Cochran Q tested for heterogeneity, and MR-Egger regression analyses were performed to test for multiplicity. leave-one-out analysis allowed for the robustness and reliability were assessed. No statistically significant effects of PM2.5, PM2.5-10, PM10, nitrogen dioxide, nitrogen oxides and RA were observed in either European or East Asian populations. Results from European data: PM2.5 (IVW OR: 0.71; 95% CI: 0.27-1.91; p = 0.498; number of SNPs: 5), PM2.5-10 (IVW OR: 1.20; 95% CI: 0.61-2.40; p = 0.596; number of SNPs: 15), PM10 (IVW OR: 1.69; 95% CI: 0.84-3.39; p = 0.142; number of SNPs: 9), nitrogen dioxide (IVW OR: 3.88; 95% CI: 0.19-77.77; p = 0.375; number of SNPs: 2), nitrogen oxides (IVW OR: 0.51; 95% CI: 0.16-1.67; p = 0.268; number of SNPs: 4). East Asian data results: PM2.5 (IVW OR: 1.16; 95% CI: 0.98-1.38; p = 0.086; number of SNPs: 4), PM2.5-10 (IVW OR: 1.14; 95% CI: 0.95-1.38; p = 0.166; number of SNPs: 2), PM10 (IVW OR: 0.95; 95% CI: 0.81-1.11; p = 0.503; number of SNPs: 3), nitrogen dioxide (IVW OR: 0.87; 95% CI: 0.76-1.00; p = 0.051; number of SNPs: 6), nitrogen oxides (IVW OR: 0.96; 95% CI: 0.82-1.14; p = 0.671; number of SNPs: 3). No signs of pleiotropy or heterogeneity were observed in the MR-Egger intercept, MR-PRESSO and Cochrane's Q (p>0.05). In addition, no outliers were found in the MR-PRESSO analysis. The results were further validated by leave-one-out tests, confirming the robustness of the findings. We performed transethnic MR analysis suggesting that there may not be a genetically predicted causal relationship between air pollution and RA.

Significance of Juvenile Idiopathic Arthritis in Pediatric-Phthisiatric Practice (Review)

Juvenile idiopathic arthritis (JIA) is a heterogeneous group that includes all forms of childhood chronic arthritis (joint inflammation lasting more than 6 weeks) of unknown cause in children under 16 years of age. JIA is the most common rheumatic disease in childhood (with an annual incidence from 1.6 to 23.0 new cases per 100,000 adolescents) and is characterized by an often hidden onset and a chronic relapsing course after diagnosis. Tuberculosis plays a special role among opportunistic infectious diseases in JIA, because rheumatic diseases are associated with an increase in the overall risk of developing tuberculosis. Children's phthisiologists often deal with the differential diagnosis difficulty of tubercular lesions of the joints with JIA, and first of all, with oligoarthritis. Clinical symptoms in JIA can be very diverse, and some characteristics of arthritis, not necessarily significant in JIA diagnosis, may have multiple etiologies that need to be carefully differentiated. It was detected during review that JIA is of urgent importance in children’s phthisiatric practice due to various reasons: oligoarthritis in JIA has similar clinical manifestations as in tuberculosis arthritis, which significantly complicates differential diagnosis and delays timely treatment of a correctly diagnosed disease; there is a high frequency of diagnosis of latent tuberculosis infection (LTBI) in JIA, which requires the appointment of preventive treatment to reduce the risk of LTBI progression to an active form of tuberculosis; patients with JIA receiving tumor necrosis factor blockers and/or methotrexate have a higher risk of tuberculosis activation, which is a serious problem in the treatment plan, and require constant monitoring for the possible development of tuberculosis. Therefore, in all pediatric patients with JIA, mandatory diagnostic screening (combination of tuberculin skin test methods with QuantiFERON®-TB Gold In-Tube, taking into account the high frequency of false-negative result of the tuberculin skin test due to immunosuppression caused by JIA) for timely detection of LTBI, and with a positive result of preventive antimycobacterial treatment, which will prevent the development of an active form of tuberculosis.Therefore, all pediatric patients with JIA should undergo mandatory diagnostic screening (combination of tuberculin skin test methods with QuantiFERON®-TB Gold In-Tube, considering the high frequency of false-negative result of tuberculin skin test due to immunosuppression caused by JIA) for timely detection of LTBI. When there is a positive result of the screening tests, it is necessary to carry out prophylactic antimycobacterial treatment, which will prevent the development of an active form of tuberculosis.

Sjögren disease, new name, new guidelines: Key messages for primary care

Sjögren’s syndrome is increasingly renamed Sjögren disease, as in the recent British Society of Rheumatology guidelines. These guidelines provide evidence-based recommendations for the management of adult and juvenile onset Sjögren disease. Sjögren disease is the second most common autoimmune rheumatic disease (after rheumatoid arthritis), affecting approximately 0.6% of adults, over 90% of whom are women. Sjögren disease can occur as a stand-alone autoimmune disease or overlap with other conditions such as rheumatoid arthritis, systemic lupus erythematosus or systemic sclerosis. This article aims to highlight the salient features of the guidelines for primary care physicians to improve the early diagnosis of Sjögren disease and inform the day-to-day management of established cases. The two clinical case scenarios featured in this article should help to highlight the importance of early diagnostic pick up whilst minimising false positive diagnosis and to highlight key messages from the new guidelines. A summary sheet of these guidelines is included in the supplementary material.

Pharmacological considerations in pharmacotherapy of rheumatology patients with liver disease: a brief narrative review.

The presence of chronic liver diseases such as metabolic dysfunction-associated steatosis liver disease, viral hepatitis, and cirrhosis may affect the treatment plan in patients with rheumatologic disorders, with concern about the adverse effects of the rheumatic medications on the course of liver disease. Advanced liver disease can change the elimination and activation of many drugs. In addition, there are concerns about the risk of viral reactivation after using biologics and immunosuppressants in patients with chronic viral hepatitis. This narrative review will assess the considerations that should be made before starting the most frequently used drugs in all common rheumatic diseases and patients with chronic liver diseases including chronic viral hepatitis.

Adalimumab-induced manic episode in an adolescent with juvenile idiopathic arthritis

BackgroundJuvenile idiopathic arthritis (JIA) is the most common chronic inflammatory rheumatic disease in children, and adalimumab is one of the primary treatment options. Although it is widely used for inflammatory diseases, there is limited research on its safety and efficacy in patients with psychiatric disorders or in those with inflammatory diseases who also have comorbid psychiatric conditions.Case reportWe report a 12-year-old adolescent boy who presented with emotional instability for 1 year, exacerbated leading to hospital admission in the past month. Upon detailed evaluation after admission, it was found that the patient’s emotional fluctuations may be related to the use of Adalimumab. Follow-up after psychiatric inpatient treatment revealed that the patient did not experience emotional excitement again after discontinuing Adalimumab.ConclusionsAlthough tumor necrosis factor-α inhibitors have positive effects on the emotional, cognitive, and physical functions of patients with inflammatory diseases, their use may induce mood swings in patients with comorbid mood disorders. This is particularly important for adolescents with rapid mood changes, where greater caution is required. Further research is necessary to clarify the correlation between the adverse effects of these drugs and their impact on patients with bipolar disorder.

Balance Impairment in Patients with Rheumatoid Arthritis and Ankylosing Spondylitis.

Balance weaknesses related to mobility and fall risk in patients with rheumatic diseases are well-known. Vestibular dysfunction could negatively contribute to the balance ability of this patient population. This study aims to investigate the effects of Rheumatoid Arthritis (RA) and Ankylosing Spondylitis (AS), among the most common rheumatic diseases, on postural balance related to vestibular function. Seventy-eight participants were grouped as RA (n=34, 43%), AS (n=24, 30.7%), and the control group consisted of healthy individuals (n=20, 25.6%). Cervical Vestibular Evoked Myogenic Potentials (cVEMP) test, which assesses the vestibular function objectively, Dizziness Handicap Inventory (DHI), which evaluates vertigo subjectively, and Berg Balance Scale (BBS) were performed. Different degrees of VEMP latency prolongations were found in the AS and RA groups. Right, and left ear N1 latencies were significantly longer in the AS group than in RA and control. Right ear P1 latency prolongation was statistically significant in the RA group. Amplitude asymmetry ratio (AAR) was found to be considerably higher in the RA and AS groups than in the control group (p<0.05). The mean BBS score in the AS group was below the fall risk score of 45. A negative statistically significant effect was observed between latency prolongation and BBS in AS groups. The abnormal VEMP findings in individuals with RA and AS shows inner ear vestibular system dysfunction. This vestibular impairment strictly contributes to their postural imbalance and requires a focused vestibular rehabilitation program for balance treatment.

Predicting the course of uveitis against the background of juvenile idiophatic arthritis when using topical therapy regimens. The results of mathematical modeling

BACKGROUND: Juvenile idiopathic arthritis is the most common rheumatic disease in children, and uveitis is its most destructive extra-articular manifestation. Despite the existence of Federal clinical guidelines for the management of these patients, their treatment is largely based on the experience of doctors and varies greatly even within the same country. AIM: The aim of the study is to find factors for predicting the course of uveitis and optimizing therapy. MATERIALS AND METHODS: The case histories of 150 children aged 1.5 to 17 years with active uveitis in the structure of juvenile arthritis were analyzed using multifactorial modeling (construction of classification trees). RESULTS: The fact of a significant influence of the time elapsed from the onset of rheumatic disease and uveitis until the start of therapy by genetically engineered medications (tumor necrosis factor alpha inhibitors) in treatment programs has been established. CONCLUSIONS: Thus, the inclusion of this factor into the group of controlling ones makes it possible to achieve inactive uveitis status after 1, 3, and 6 months in a higher percentage of cases. However, the obtained data still require additional clinical confirmation.

Performance of salivary glands ultrasonography, shear wave elastography and their combined use for the diagnosis of primary and secondary Sjögren's syndrome.

Sjögren's syndrome (SS) is a common rheumatic disease for which finding the right imaging tool remains a challenge. This study aimed to evaluate the performance of salivary gland ultrasonography (SGUS), shear wave elastography (SWE) and their combined use for the diagnosis of primary and secondary SS (pSS and sSS). This retrospective study included patients with dry symptoms who underwent routine examinations between May 2019 and December 2023. Patients were categorized into the pSS (n=41), sSS (n=26), and control (n=27) groups based on the American College of Rheumatology/European League Against Rheumatism classification criteria (2016). A comparison of SGUS and shear wave velocity (SWV) results was conducted among the three groups. The diagnostic capabilities of different ultrasound methods for SS were evaluated using receiver operating characteristic (ROC) curves and the area under the curve (AUC) for specificity. Compared to the control group, both the pSS (1.80±1.03vs. 0.67±0.48, p<0.001) and the sSS (1.85±0.88vs. 0.67±0.48, p<0.001) groups exhibited significantly elevated SGUS scores. However, there was no statistically significant difference between the pSS and sSS groups (p=0.849). The SWV values in both the pSS and sSS groups were significantly higher than those in the control group (all p<0.001). The AUC for diagnosing SS using only SGUS scores was 0.823 (95% confidence interval [CI]: 0.731-0.894). Combining SGUS scores and SWV values resulted in improved diagnostic accuracy (AUC: 0.883, 95% CI: 0.801-0.940). SGUS and SWE are pivotal in the diagnosis of Sjögren's syndrome, with their synergistic application poised to bolster diagnostic precision. This combined approach also furnishes substantial backing for the clinical assessment and management of Sjögren's syndrome.

Identifying the genetic association between common rheumatic diseases and vitiligo.

Although observational studies have suggested a correlation between vitiligo and rheumatic diseases, conclusive evidence supporting a causal relationship is still lacking. Therefore, this study aims to explore the potential causal relationship between vitiligo and rheumatic diseases. Using genome-wide association studies, we performed a two-sample Mendelian randomization (MR) analysis. In our analysis, the random-effects inverse variance weighted (IVW) method was predominantly employed, followed by several sensitivity analyses, which include heterogeneity, horizontal pleiotropy, outliers, and "leave-one-out" analyses. The genetically predicted vitiligo was associated with an increased risk of rheumatoid arthritis (RA) (OR, 1.47; 95% confidence interval [CI], 1.29-1.68; p<0.001), and systemic lupus erythematosus (SLE) (OR, 1.22; 95% CI, 1.06-1.39; p=0.005). The causal associations were supported by sensitivity analyses. In Sjögren's syndrome and ankylosing spondylitis, no causal relationship with vitiligo was found in the study. Our MR results support the causal effect that vitiligo leads to a higher risk of RA and SLE. Individuals with vitiligo should be vigilant for the potential development of RA and SLE. Managing and addressing this potential requires regular monitoring.

Comparative analysis of pediatric rheumatic patient growth patterns against norms: A cross-sectional study conducted in an Eastern Indian hospital

Background. Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease. Rheumatic diseases are a major cause of chronic illness in children around the world. SLE is a further prevalent inflammatory illness. Aims and objectives. To study different growth parameters of pediatric patients attending pediatric rheumatology clinic, to compare the growth parameters with age and sex matched controls and to compare growth among different types of pediatric rheumatic patients. Method. Different growth parameters and SMI (for children above 9 years) were recorded for patients attending pediatric rheumatology OPD having disease duration more than one year. Results. Among 121 patients, JIA was most common followed by SLE. Among JIA subtypes, SOJIA is most common. Mean age of presentation was earlier in SOJIA, late in JoAS. SLE patients had larger duration of illness prior to diagnosis than JIA patients. In JIA patients, mean height was significantly less than controls. SOJIA and polyarticular variety had significantly less weight and height compared to controls. SLE patients had significantly less weight and height compared to control. Anthropometric parameters were significantly more in SLE patients compared to JIA cohort. There was significantly more delayed puberty both in JIA and SLE patients compared to controls. Conclusion. JIA was most common, followed by SLE. Among JIA patients SOJIA variety was most common, JIA patients had significantly lower height than controls. SLE patients had significantly lower weight and height than controls. Delayed puberty was significantly more in both JIA and SLE patients compared to controls.

Temporomandibular joint rehabilitative approaches for children and adolescents affected by juvenile idiopathic arthritis: A systematic review.

Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease of childhood, and temporomandibular joints (TMJs) are involved in 39%-78% of patients. The aim of this systematic review was to assess the effectiveness of conservative approaches in improving TMJ arthritis in children and adolescents affected by JIA. PubMed, Scopus, and Web of Science were systematically searched from the inception until February 25, 2024, to identify observational studies presenting participants with a diagnosis of JIA affecting the TMJ, rehabilitative approaches for TMJ arthritis as interventions, and clinical or radiological assessment of TMJ arthritis as outcome. Of 478 papers suitable for title/abstract screening, 13 studies were included. The studies evaluated the effectiveness of intra-articular (IA) corticosteroid (CS) injections, IA infliximab injections, arthrocentesis alone or in combination with IACS injections, occlusal splint, functional appliance, and physiotherapy. The effectiveness of IACS injections was shown in eight studies. IA infliximab injections did not appear to significantly improve TMJ arthritis. Results of this systematic review suggested that conservative treatments, especially IACS injections, might be effective in improving TMJ arthritis in patients affected by JIA. Further studies with a higher level of evidence and more representative samples should be conducted.

Combination of scavenger receptor-A with anti-cyclic citrullinated peptide antibody for the diagnosis of rheumatoid arthritis.

The routine biomarkers for rheumatoid arthritis (RA), including anticyclic citrullinated peptide antibody (anti-CCP), rheumatoid factor (RF), immunoglobulin M (IgM), erythrocyte sedimentation rate (ESR), and C-reaction protein (CRP) have limited sensitivity and specificity. Scavenger receptor-A (SR-A) is a novel RA biomarker identified by our group recently, especially for seronegative RA. Here, we performed a large-scale multicentre study to further assess the diagnostic value of SR-A in combination with other biomarkers for RA. The performance of SR-A in combination with other biomarkers for RA diagnosis was first revealed by a pilot study, and was further elucidated by a large-scale multicentre study. A total of 1129 individuals from 3 cohorts were recruited in the study, including RA patients, healthy controls, and patients with other common rheumatic diseases. Diagnostic properties were evaluated by the covariate-adjusted receiver-operating characteristic (AROC) curve, sensitivity, specificity and clinical association, respectively. Large-scale multicentre analysis showed that SR-A and anti-CCP dual combination was the optimal method for RA diagnosis, increasing the sensitivity of anti-CCP by 13% (87% vs 74%) while maintaining a specificity of 90%. In early RA patients, SR-A and anti-CCP dual combination also showed promising diagnostic value, increasing the sensitivity of anti-CCP by 7% (79% vs 72%) while maintaining a specificity of 94%. Moreover, SR-A and anti-CCP dual combination was correlated with ESR, IgM, and autoantibodies of RA patients, further revealing its clinical significance. SR-A and anti-CCP dual combination could potentially improve early diagnosis of RA, thus improving the prognosis and reducing mortality.

Polyarticular juvenile idiopathic arthritis has a distinct co-inhibitor receptor profile.

Juvenile Idiopathic Arthritis (JIA) is the most common rheumatic disease of childhood; the pathogenesis is associated with T cell activation. T cell activation can be counter-balanced by signals generated by inhibitory receptors (IRs) such as CTLA-4, PD-1, LAG-3, and TIM-3. Here, we identify the role of IRs in the pathogenesis of different JIA subtypes. In total, we included 67 oligoarticular JIA, 12 IgM-RF negative polyarticular JIA, 17 enthesitis related arthritis, 11 systemic JIA patients and 10 healthy controls. We collected plasma (and synovial fluid) samples from the patients either at the onset or during a flare of their disease. We measured the soluble levels of co-IRs (IL-2Rα, 4-1BB, CD86, TGF-β1, CTLA-4, PD-L1, PD-1, TIM-3, LAG- 3, Galectin-9) by cytometric bead array kits and their cellular expression (PD-1, CTLA-4, TIM-3, LAG-3) by flow cytometry. We compared the plasma levels and cellular expressions of different co-IRs within different JIA subgroups. The polyarticular-JIA group was different from the three other examined JIA subgroups, having higher levels of plasma sCTLA-4(p< 0.001), sPD-1(p< 0.05), and s4-1BB(p< 0.05) when compared with the other JIA subgroups and healthy controls. We analyzed the cellular surface expression of different co-IRs on the PBMCs of different JIA subtypes. Similar to plasma levels, both the percentage(p< 0.05) and the MFI (mean fluorescence intensity) (p< 0.01) of CTLA4 expression were higher in the poly-JIA subgroup. This is the first report studying the expression profile of different co-IRs in different subtypes of JIA. Polyarticular JIA patients had a different co-IR profile, having more CTLA-4, PD-1 and 4-1BB in their plasma than the other subtypes of JIA.

Physical Activity and Sports for Children With Juvenile Idiopathic Arthritis.

Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease of childhood, presenting clinically as inflammatory arthritis in children younger than 16 years. To date, while evidence supports physical activity for children with JIA, there is limited evidence on the recommended approach to physical activity and sports participation in this population, and no single structured therapeutic exercise program has been established as best practice. This review article presents what is known on the management of physical activity in children with JIA, including recommendations from the pediatric rheumatology and rehabilitation literature, where available, for sports participation, structured therapeutic exercise programs, and return to activity.