scholarly journals Metabolomic Profiling Identifies Exogenous and Microbiota-Derived Metabolites as Markers of Methotrexate Efficacy in Juvenile Idiopathic Arthritis

2021 ◽  
Vol 12 ◽  
Author(s):  
Ryan Sol Funk ◽  
Mara L. Becker

Variability in methotrexate (MTX) efficacy represents a barrier to early and effective disease control in the treatment of juvenile idiopathic arthritis (JIA). This work seeks to understand the impact of MTX on the plasma metabolome and to identify metabolic biomarkers of MTX efficacy in a prospective cohort of children with JIA. Plasma samples from a cohort of children with JIA (n = 30) collected prior to the initiation of MTX and after 3 months of therapy were analyzed using a semi-targeted global metabolomic platform detecting 673 metabolites across a diversity of biochemical classes. Disease activity was measured using the 71-joint count juvenile arthritis disease activity score (JADAS-71) and clinical response to MTX was based on achievement of ACR Pedi 70 response. Metabolomic analysis identified 50 metabolites from diverse biochemical classes that were altered following the initiation of MTX (p < 0.05) with 15 metabolites reaching a false-discovery rate adjusted p-value (q-value) of less than 0.05. Enrichment analysis identified a class-wide reduction in unsaturated triglycerides following initiation of MTX (q = 0.0009). Twelve of the identified metabolites were significantly associated with disease activity by JADAS-71. Reductions in three metabolites were found to be associated with clinical response by ACR Pedi 70 response criteria and represented several microbiota and exogenously derived metabolites including: dehydrocholic acid, biotin, and 4-picoline. These findings support diverse metabolic changes following initiation of MTX in children with JIA and identify metabolites associated with microbial metabolism and exogenous sources associated with MTX efficacy.

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_5) ◽  
Author(s):  
A Fazaa ◽  
F Ben Messaoud ◽  
S Miladi ◽  
L Souabni ◽  
K Ouenniche ◽  
...  

Abstract Background Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic disease in children and is one of the major causes of morbidity and physical disability. Due to frequent absences, children with chronic health impairments are also often confronted with educational difficulties. The aims of this study were to assess the impact of JIA on children’s schooling and to determine the factors that influence their school level. Methods This is a cross-sectional study including patients with JIA (ILAR criteria). A detailed questionnaire was completed for each participant by interviewing them or their parents as well as by information obtained from their medical records. Collected data included age, sex, subtype of JIA, disease duration, level of disability according to the Childhood Heath Assessment Questionnaire (CHAQ), visual analogue scale for patient’s overall assessment of disease activity (VASOA), duration of morning stiffness, tender joint counts (TJCs), swollen joint counts (SJCs), erythrocyte sedimentation rate (ESR), C-Reactive Protein (CRP), Disease Activity Score (DAS28) for polyarticular and oligoarticular JIA, Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) for Enthesitis-related arthritis. Medications used for JIA treatment were also documented. Data on the school performance of patients and their siblings were obtained using telephone interviews (educational level, absenteeism, school delay by repetition, drop-out). Results A total of 43 patients with JIA were included, 25 female and 18 male, with a mean age of 26 years [12–51] and a mean disease duration of 237 months (5–496). The average age of the onset of the disease was 7.4 years [1.5–16]. The most common subtype was rheumatoid factor-positive polyarthritis (n = 18) followed by systematic (n = 8), oligoarticular (n = 8), rheumatoid factor-negative polyarthritis (n = 5) and Enthesitis-related arthritis (n = 4). The mean DAS28 was 3.02 [0.76 – 5.55] and the median CHAQ was 0.66 [0–3]. Twenty-nine of the children were receiving corticosteroid. Disease-modifying anti-rheumatic drugs were used by 38 of the 43 patients: methotrexate (n = 27), sulfasalazine (n = 8), leflunomide (n = 7), biotherapies (n = 16). Twenty patients had complications: Hip arthritis (n = 18), growth stunting (n = 14), uveitis (n = 5). Joint replacement was required in 11 cases. Four patients were illiterate, 14 had dropped out of school, 24 reported repeated absences due to illness. A year of schooling was repeated by 50.85% of patients. Eleven out of 32 patients over the age of 20 had an university level. Almost 80% of patients were exempted of physical education. There were no significant associations between the school-related problems, the socio-demographic characteristics and the various parameters of clinical and biological activity studied. Conclusion Our study suggested that JIA negatively affects schooling of children. More studies, with a larger sample of children, are needed to identify the variables associated with school failure in order to ensure the proper management of these patients and to increase their academic performance.


Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_5) ◽  
Author(s):  
H Hajji ◽  
D Ben Nessib ◽  
K Maatallah ◽  
H Ferjani ◽  
W Triki ◽  
...  

Abstract Background Juvenile idiopathic arthritis (JIA) is an heterogeneous group of autoimmune diseases considered as the main cause of chronic arthritis among children and teenagers. This group of children is thought to be more vulnerable because of chronic inflammation and long-term immunosuppressive therapy. Passive smoking, which is a major health problem, is likely to be particularly harmful for these children whose immunity is already compromised by their disease. The aim of our study was to assess the effect of parental smoking on disease activity in children with JIA Methods A monocentric cross-sectional study of patients with JIA according to the criteria of the International League Against Rheumatism (ILAR) was conducted in the rheumatology department of Kassab Institute. The following clinical and biological data were collected: sex, age, disease duration, BASDAI activity score, functional impairment assessed by the BASFI score, biological inflammation assessed by the erythrocyte sedimentation rate (ESR) and the C-reactive protein (CRP). All parents were contacted and smoking data were recorded: parent smoking, pack-years history, smoking in an indoor or outdoor space, impact of passive smoking on disease activity. We considered any child with at least one smoking parent and living in the same house to be exposed to parental passive smoking. Patients were divided into two groups: group 1 (G1) including patients who are not exposed to parental smoking and group 2 (G2) including patients exposed to smoking by one or both parents. Data were analyzed using SPSS (Statistical Package for the Social Sciences) version 24 software. The significance level was set at a p-value < 0.05. Results Twenty-three patients were included: 15 girls and 8 boys. Sex ratio M/F was 0.53. The mean age was 16.5 + 8.1 years [8–40]. The mean disease duration was 4.9 + 4.9 years [0.15]. The mean ESR was 21.5 + 27.1 mm and the mean CRP was 4.7 + 7.1 mg/l. Nine patients had coxitis, including 4 who were exposed to passive smoking. Passive smoking noted in 11 patients (47.8%), including 6 boys and 5 girls. In 63.6% of the cases, this exposure occurred indoor in the family home. The number of cigarettes smoked per day was 11.7 + 8.4 [1,20]. Among the exposed patients, 36.4% considered that this exposure was an exacerbating factor of their disease. Clinical and biological data were comparable between the 2 groups as shown in table 1. Conclusion Although the adverse effect of maternal smoking during pregnancy on the risk of developing JIA in the child has been demonstrated, few studies have investigated the effect of parental smoking once the disease is established. Our study did not find a statistically significant association between smoking exposure and high disease activity or poor prognosis. However, further studies including a larger number of patients are needed to assess the potential effect of parental smoking on the prognosis of JIA.


2021 ◽  
Vol 22 (3) ◽  
pp. 1423
Author(s):  
Yuri D’Alessandra ◽  
Mattia Chiesa ◽  
Vera Vigorelli ◽  
Veronica Ricci ◽  
Erica Rurali ◽  
...  

Hematopoietic stem/progenitor cells (HSPCs) participate in cardiovascular (CV) homeostasis and generate different types of blood cells including lymphoid and myeloid cells. Diabetes mellitus (DM) is characterized by chronic increase of pro-inflammatory mediators, which play an important role in the development of CV disease, and increased susceptibility to infections. Here, we aimed to evaluate the impact of DM on the transcriptional profile of HSPCs derived from bone marrow (BM). Total RNA of BM-derived CD34+ stem cells purified from sternal biopsies of patients undergoing coronary bypass surgery with or without DM (CAD and CAD-DM patients) was sequenced. The results evidenced 10566 expressed genes whose 79% were protein-coding genes, and 21% non-coding RNA. We identified 139 differentially expressed genes (p-value < 0.05 and |log2 FC| > 0.5) between the two comparing groups of CAD and CAD-DM patients. Gene Set Enrichment Analysis (GSEA), based on Gene Ontology biological processes (GO-BP) terms, led to the identification of fourteen overrepresented biological categories in CAD-DM samples. Most of the biological processes were related to lymphocyte activation, chemotaxis, peptidase activity, and innate immune response. Specifically, HSPCs from CAD-DM patients displayed reduced expression of genes coding for proteins regulating antibacterial and antivirus host defense as well as macrophage differentiation and lymphocyte emigration, proliferation, and differentiation. However, within the same biological processes, a consistent number of inflammatory genes coding for chemokines and cytokines were up-regulated. Our findings suggest that DM induces transcriptional alterations in HSPCs, which are potentially responsible of progeny dysfunction.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1654.3-1654
Author(s):  
S. Alonso Castro ◽  
E. Pardo Campo ◽  
L. C. Charca Benavente ◽  
M. Pino Martínez ◽  
S. Fernández ◽  
...  

Background:Patients with spondyloarthritis (SpA) suffer not only from pain or physical disability, but they are also affected in multiple facets of life due to this condition (disease impact). Recently, the ASAS group has proposed a new way of capturing the impact that SpA have on patients’ lives, based on the principles proposed by the International classification of functioning, disability and health (ICF). The tool obtained (ASAS-health index or ASAS-HI) includes 17 items that cover most ICF domains.Objectives:To analyze the performance of ASAS-HI in real clinical practice, by comparing it with other standard measures of evaluation of SpA. To assess whether ASAS-HI is able to identify disease activity states in these patients.Methods:This cross-sectional study included 111 consecutive patients with SpA (ASAS criteria). The correlation (Spearman’s rho) between ASAS-HI, BASDAI, ASDAS, and BASFI was analyzed. ROC curves were constructed to analyze ASAS-HI values that determined BASDAI remission, ASDAS inactive disease, and ASDAS low activity. A logistic regression was made to determine the ASAS-HI items with greater capability to discriminate the state of remission / inactive disease.Results:Seventy-four men and 37 women were included, mean age of 43.3 ± 10.6 years. The average duration of illness was 7.6 ± 6.8 years. Sixty percent of the series was under biological therapy. HLA-B27 was positive in 79.3%. The average value of ASAS-HI was 5.4 ± 3.8. There were significant correlations between ASDAS and BASDAI (rho: 0.89, p <0.0005), BASDAI and BASFI (rho: 0.86, p <0.0005), BASFI and ASDAS (rho: 0.78, p <0.0005), BASDAI and ASAS-HI (rho: 0.77, p <0.0005), ASDAS and ASAS-HI (rho: 0.70, p <0.0005). The optimal cut-off point of ASAS-HI for BASDAI remission (Table 1) corresponded to a value ≤ 2. As for the value of ASAS-HI to define ASDAS inactive disease (Table 2), this was ≤ 0. For ASDAS low activity, the value was ≤ 6 [area under the ROC curve 0.82 (95% CI: 0.73-0.89), Sen: 89.5%, Spe: 66.1). In the multivariate regression, the two ASAS-HI items associated with BASDAI non-remission were, “I often get frustrated” [OR 9.2 (95% CI: 1.2-69.4), p = 0.032], and “I sleep badly at night” [OR 7.7 (95% CI: 1.4-41.6), p = 0.018). As for ASDAS, the only question of ASAS-HI significantly associated with active disease was “pain sometimes disrupts my normal activities” [OR 8.7 (95% CI: 1.7-45.2), p = 0.010].Conclusion:ASAS-HI correlates well with most outcome measures in SpA. A cut-off point of ASAS-HI ≤ 6 identifies a low disease activity and could be considered a good treatment objective. The evaluation of SpA should include not only conventional measures (BASDAI / ASDAS) but also disease impact measures (ASAS-HI).Table 1.Area under the ROC curve (AUC)0.88395% CI0.809-0.936p-value<0.0001Optimal cut-off point≤2Sensitivity65.71Specificity96.05Table 2.Area under the ROC curve (AUC)0.87395% CI0.797-0.929p-value<0.0001Optimal cut-off point≤0Sensitivity58.82Specificity94.68Disclosure of Interests:None declared


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 556.1-556
Author(s):  
M. A. Sparfel ◽  
S. Derolez ◽  
J. Law-Wan ◽  
N. Azzopardi ◽  
P. Goupille ◽  
...  

Background:TNF inhibitors have changed the course of rheumatoid arthritis (RA). Yet, detailed analysis on factors influencing clinical response to TNF inhibitors in RA is lacking.Objectives:Herein we aimed at studying the impact of demographics and disease-related factors on therapeutic response to golimumab and infliximab in RA.Methods:Randomized clinical trials (RCTs) that evaluated golimumab and infliximab versus placebo or conventional therapy were sought. We selected the following factors: age, sex, ethnicity, body mass index (BMI), smoking status, physical activity, disease duration, disease activity at baseline, presence of auto-antibodies. We studied the impact of these factors on clinical response using firstly aggregate data in a Mantel-Haenszel random effects model, and secondly individual data in a multivariate regression model.Results:Individual data from 8 RCTs, 2 on infliximab (n=1477) and 6 on golimumab (total =3041) were obtained. In the aggregate model analysis, none of the selected factors had a significant impact on clinical response. In the multivariate analysis, male sex and physical activity were significantly associated with a lower DAS28-CRP after 6 months of treatment (regression coefficients -0.264 (p<0.001) and -0.193 (p=0.004) respectively), while a high initial DAS28-CRP was significantly associated with a higher DAS28-CRP (regression coefficient 0.579 (p<0.001)). The baseline disease activity was the only significant interaction factor with the effect of the treatment.Conclusion:Male gender and practicing physical activity are associated with lower disease activity 6 months after golimumab or infliximab initiation. High baseline disease activity significantly influences negatively the effect of the treatment on disease activity score.Acknowledgements:This study, carried out under YODA Project 2018-2931, used data obtained from the Yale University Open Data Access Project, which has an agreement with JANSSEN RESEARCH & DEVELOPMENT, L.L.C. The interpretation and reporting of research using this data are solely the responsibility of the authors and does not necessarily represent the official views of the Yale University Open Data Access Project or JANSSEN RESEARCH & DEVELOPMENT, L.L.C.Disclosure of Interests:Marc-Antoine SPARFEL: None declared, Sophie Derolez: None declared, Johan Law-Wan: None declared, Nicolas Azzopardi: None declared, Philippe Goupille Speakers bureau: Abbvie, Biogaran, BMS, Hospira, Janssen, MSD, Pfizer, Sanofi-Genzyme, UCB, Consultant of: Abbvie, Biogaran, BMS, Hospira, Janssen, MSD, Pfizer, Sanofi-Genzyme, UCB, Grant/research support from: Clinical trials sponsored by Abbvie, Roche, BMS, Boehringer, Lilly, Novartis, Pfizer, UCB, Janssen and MSD. Invitation to an international congresses by MSD, Roche, BMS and Abbvie, Denis Mulleman Speakers bureau: Pfizer and Novartis, Consultant of: Pfizer and Novartis, Grant/research support from: Invitation to an international congress by Janssen-Cilag, Theodora Bejan-Angoulvant: None declared


Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_5) ◽  
Author(s):  
Hiba Bettaieb ◽  
Hanene Ferjani ◽  
Kaouther Maatallah ◽  
Dorra Ben Nessib ◽  
Wafa Triki ◽  
...  

Abstract Background Juvenile Idiopathic Arthritis (JIA) is a chronic disease characterized by prolonged synovial inflammation that may cause structural joint damage. However, little is known about cervical spine involvement in JIA. The main objective of this study is to describe radiological findings of the cervical spine in patients with JIA. Methods We conduct a retrospective monocentric study. All JIA patients were included (ILAR criteria). Sociodemographic, JIA subtype, and clinical characteristics were collected. Disease activity at JIA diagnosis was evaluated by JADAS10 (Juvenile Arthritis Disease Activity Score) in poly and oligoarticular subtypes and by BASDAI (Bath Ankylosing Spondylitis Disease Activity Index) in arthritis-related enthesitis form. Cervical spine radiographs including anteroposterior and lateral with flexion views were analyzed. A p-value &lt; 0.05 was considered significant. Results We included 25 patients (16 girls and 9 boys) diagnosed with JIA with a mean age at disease onset of 9.9 ± 3.9 [3–16]. The median disease duration was 36 months (IQR 25–75%; 30–84). The JIA subtypes were in decreasing order of frequency: Enthesitis-related Arthritis (n = 9), Oligoarticular (n = 6), Polyarticular RF- (n = 4), Polyarticular RF + (n = 2), Systemic (n = 2), Psoriatic Arthritis (n = 1), and Undifferentiated (n = 1). Median ESR and CRP were 17 mm/h [2–98] and 15.4 mg/l [0–56] respectively. The Median BASDAI score was 2.8 [1–6.3]. Median JADAS10 score was 5.3 [0–20]. Four patients (16%) were on long-term corticosteroid therapy. Five patients (20 %) have a cervical spine involvement with the following subtypes: Polyarticular (n = 2), enthesitisenthesitis-related arthritis (n = 2), and systemic (n = 1). Clinical manifestations were neck pain (n = 3) and limited range of motion (n = 4). Neurological examination noted brisk deep tendon reflexes (n = 6), positive Babinski reflex (n = 1) and positive Hoffmann reflex (n = 2). No patient had a neurological deficit. The conventional radiographs of the cervical spine showed: loss of cervical lordosis (n = 2), diastasis C1-C2 (n = 3), erosion of the odontoid process (n = 1), and anterior ankylosis (n = 3). Subsequent cervical spine MRI confirmed these findings and showed pannus at the craniocervical junction in one case and block vertebra of C6-C7 in another case. Atlanto-axial subluxation was anteroposterior in 3 patients and rotatory in one. Conclusion Cervical spine involvement is frequent and underestimated in JIA, and its radiological features are various. Hence, regular radiographic monitoring of the cervical spine is required to prevent the development of this complication.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1401.3-1401
Author(s):  
H. Bettaieb ◽  
A. Fazaa ◽  
S. Miladi ◽  
M. Sellami ◽  
O. Kmar ◽  
...  

Background:During rheumatoid arthritis (RA), initiating conventional synthetic Disease Modifying Anti-Rheumatic Drug (csDMARD) at the early stages of the disease is a mandatory condition to achieve DMARD-free sustained remission (1). Limited data studying the relationship between RA treatment delay and disease activity are available.Objectives:The aim of this study was to assess the impact of csDMARD initiation delay during RA on disease activity.Methods:This is a cross-sectional study including patients with RA (ACR/EULAR criteria).Delays were collected from patients’ interview and were represented respectively by D1, D2 and D3. D1 stands for the lag time separating the first RA symptom onset and rheumatologist consultation. D2 stands for the lag time separating the first RA symptom onset and RA diagnosis. D3 stands for lag time separating the first RA symptom onset and csDMARD initiation. Disease activity was evaluated by: Visual Analogue Scale for pain (VAS), number of tender joints, number of swollen joints, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and Disease Activity Score28 (DAS28).The data were analyzed with descriptive statistics, Student’s t test, chi (2) test, and Spearman correlation using the SPSS statistical package. A p value < 0.05 was considered significant.Results:The study included 100 RA patients (86 women and 14 men), with a mean age of 56.5 ± 12.4 years. The mean age at the onset of RA was 47.5 ± 12.4 years. Median D1, D2 and D3 were respectively 12 months [0-242], 15.7 months [2-252] and 18 months [2-270].Methotrextate was prescribed in 86% of cases. At RA diagnosis, the median values for the following parameters were: VAS 80 [30-100], number of tender joints 10[0-28], number of swollen joints 5 [0-17], ESR 43mm/hour [6-133], CRP 14.1 mg/l [1-120], DAS28 (ESR) 5.22 [2-7.52] and DAS28 (CRP) 4.6 [1-6.93]. After one year of follow-up, the median parameters of the disease activity were respectively: VAS 60 [0-100], number of tender joints 6[0-28], number of swollen joints 2 [0-22], ESR 32 mm/hour [2-106], CRP 7.5 mg/l [1.2-94], DAS28 (ESR) 4.1 [1.4-7.1] and DAS28 (CRP) 3.7 [1.68-6.22]. Significant positive correlation was found between delays in csDMARD initiation and DAS28 (CRP) scores over the first year (p=0.02, r=0.29).Conclusion:In this study, delays in treatment were associated with higher DAS28 (CRP) scores after one year of follow-up. Our results suggest that early identification and treatment of RA leads to improved outcomes and even improved rates of drug-free remission.References:[1]Van Nies JA, Krabben A, Schoones JW, et al. What is the evidence for the presence of a therapeutic window of opportunity in rheumatoid arthritis? A systematic literature review. Ann Rheum Dis 2014;73:861–70.Disclosure of Interests:None declared


2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S041-S041
Author(s):  
D Shukla ◽  
L Purcell ◽  
M Palmer ◽  
L Pillay

Abstract Background Crohn’s disease (CD) is a debilitating autoimmune disease affecting &gt;40 000 Australians. Exclusive enteral nutrition (EEN) is an effective, risk-free therapy in children with CD, offering an ~80% success rate. Despite similar efficacy in adults, including the potential to decrease the need for high-risk steroids and surgery, adherence remains an unresolved obstacle for its use, with withdrawal rates of up to 40% (Wall 2013). Lack of dietetic expertise and support for adults on EEN were identified as primary barriers (Wall 2013). This prospective, single-centre, observational study aimed to assess the impact of a 6-week EEN model of care on disease symptoms, nutrition and inflammatory markers. We also assessed if &gt;80% of adults with CD could adhere to EEN. Methods Adults with active CD were treated with oral EEN for six weeks between March 2018 and September 2019 which uniquely included weekly specialist Dietetic support. EEN is the provision of 100% of a patient’s nutritional requirements via a nutritionally complete liquid formula. Paired assessment at baseline and EEN completion occurred for Crohn’s disease activity index (CDAI), calprotectin, C-reaction protein (CRP), platelets, albumin, white cell count, weight and calprotectin using paired t-tests. The primary outcome measure was disease activity using CDAI. Results Twenty-seven eligible CD patients were identified. Most patients (85%, n = 23/27) successfully adhered to EEN treatment (45 ± 13 years, 63% female, 52% had Calprotectin ≥100). The patients were further subdivided as per Montreal classification (L1:n = 12; L2:n = 3; L3:n = 12) and 93% were on medications such as steroids (n = 9/27), immunosuppressives (n = 19/27) and biologics (n = 16/27). After EEN, 74% (n = 20/27) achieved clinical remission (CDAI &lt;150) 19/27 patients (70%) achieved clinical response with &gt;70-point reduction in CDAI score and most (77%) patients achieved greatest improvement in CDAI score in the well-being section. A trend showed that 37% (p = 0.087) more patients with L2 and L3 CD achieved clinical response through CDAI than L1 CD patients. Calprotectin also showed a trend for improvement (-23(-65230-150) µg, p = 0.067, n = 20). No differences were observed in CRP, white cell count, or albumin (p = 0.262–0.433, n = 12–13); however, platelets showed a trend for improvement (-26(-156-46) µl, p = 0.071, n = 12) and weight reduced by −2.4(3.2) kg (p = 0.001). Few (30%, n = 8/27) patients changed medications during EEN treatment. No significant side effects were observed. Conclusion EEN may be achievable for most adults with additional professional support and has merit in assisting patients with clinical improvement of CD.


Sign in / Sign up

Export Citation Format

Share Document