Modulation of the K/BxN arthritis mouse model and the effector functions of human fibroblast-like synoviocytes by liver X receptors.

The role of liver X receptors (LXR) in rheumatoid arthritis (RA) remains controversial. We studied the effect of LXR agonists on fibroblast-like synoviocytes (FLS) from RA patients and the K/BxN arthritis model in LXRα and β double-deficient (Nr1h2/3) mice. Two synthetic LXR agonists, GW3965 and T0901317, were used to activate LXRs and investigate their effects on cell growth, proliferation and matrix metalloproteinases, and chemokine production in cultured FLS from RA patients.

Management, development and methodology of the Clinical Practice Guidelines and Recommendations of the Spanish Society of Rheumatology.

The Spanish Society of Rheumatology (SER) brings together the majority of Spain's rheumatologists and, among the many services it offers its members, has a Research Unit (RU). This unit provides methodological support to SER members in clinical and epidemiological research, coordinates and carries out research projects, designs and maintains large patient databases, develops qualitative research projects and produces evidence-based medicine (EBM) documents. Through this last activity, the RU of the SER produces clinical practice guidelines and recommendation documents on topics relevant to rheumatology that meet the most demanding methodological standards.

Early identification of golimumab-treated patients with higher likelihood of long-term retention.

Background: The early identification of patients' profiles most likely to respond to and maintain long-term therapy with a biological drug can have clinical and cost-effectiveness implications.

Objectives: To evaluate the utility of an innovative approach for early identification of patient profiles associated with long-term persistence of golimumab, a tumour necrosis factor inhibitor, in patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA), and axial spondyloarthritis (SpA) under real-world conditions.

Design: Retrospective non-interventional database analysis.

Sex Differences in the Effectiveness of First-Line Tumor Necrosis Factor Inhibitors in Psoriatic Arthritis: Results From the European Spondyloarthritis Research Collaboration Network.

Objective: Women with psoriatic arthritis (PsA) may have reduced tumor necrosis factor inhibitor (TNFi) effectiveness compared to men. We examined sex differences in treatment response and retention rates during 24 months of follow-up among patients with PsA initiating their first TNFi.

Methods: Data from patients with PsA across 13 European Spondyloarthritis Research Collaboration Network registries starting their first TNFi were pooled.

Real-world persistence of initial targeted therapy strategy in monotherapy versus combination therapy in patients with chronic inflammatory arthritis.

Objective: The persistence of biologic (b) and targeted synthetic (ts) disease-modifying antirheumatic drugs(DMARDs) in monotherapy versus in combination with conventional synthetic (cs) DMARDs is still a controversial topic in rheumatic diseases. To clarify this issue, the retention of the initial treatment strategy of b/tsDMARD in combination with csDMARD versus monotherapy in rheumatoid arthritis (RA), psoriatic arthritis (PsA) and ankylosing spondylitis (AS) patients under real-life conditions was evaluated. Factors associated with maintenance of the initial strategy were analysed.

The complement system is linked to insulin resistance in patients with systemic lupus erythematosus.

Objectives: Systemic lupus erythematosus (SLE) patients more commonly have insulin resistance (IR) than control subjects. Recent studies have revealed that the complement (C) system is not only a mediator of the immune system but is also related to the pathogenesis of atherosclerosis in the general population. Given that the C alteration is a characteristic of SLE, in the present work we set out to analyse if there is a relationship between the C system and IR in patients with SLE.

HDL Cholesterol Efflux and the Complement System Are Linked in Systemic Lupus Erythematosus.

Cholesterol efflux capacity (CEC), the ability of high-density lipoprotein (HDL) cholesterol to accept cholesterol from macrophages, has been linked to cardiovascular events. Systemic lupus erythematosus (SLE) is characterized by the consumption of complement (C) proteins and has been associated with an increased risk of cardiovascular disease. CEC is reduced in SLE patients compared to controls.

Rheumatoid arthritis.

Rheumatoid arthritis (RA) is a chronic inflammatory multisystemic disease of unknown etiology and autoimmune nature that predominantly affects peripheral joints in a symmetrical fashion. Although much progress has been made in understanding the pathophysiology of RA, its etiology remains unknown. Tumor necrosis factor (TNF)-α and interleukin (IL)-6 play the important roles in the pathogenesis and maintenance of inflammation in RA.

Four-years retention rate of golimumab administered after discontinuation of non-TNF inhibitors in patients with inflammatory rheumatic diseases.

Background: In patients with rheumatic diseases, the use of biological (b) or targeted synthetic (ts) disease-modifying antirheumatic drugs (DMARDs) after discontinuation of tumor necrosis factor inhibitors (TNFi) is known to be effective. However, data on the use of TNFi after discontinuation of non-TNFi bDMARDs or tsDMARDs (non-TNFi) are scarce. This study assessed the 4-years golimumab retention in patients with rheumatic diseases when used after discontinuation of non-TNFi.

Full characterization of the three pathways of the complement system in patients with systemic lupus erythematosus.

Background: To date a complete characterization of the components of the complement (C) pathways (CLassical, LEctin and ALternative) in patients with systemic lupus erythematosus (SLE) has not been performed. We aimed to assess the function of these three C cascades through functional assays and the measurement of individual C proteins. We then studied how they relate to clinical characteristics.

Tocilizumab-related hypertriglyceridemia is independent of key molecules regulating lipid metabolism.

Introduction: Tocilizumab (TCZ) treatment is associated with dyslipidaemia, including a rise in triglycerides through a mechanism poorly understood. Three molecules play key roles in the regulation of triglyceride metabolism: apolipoprotein C-III (ApoC-III), angiopoietin-like protein 4(ANGPLT4) and lipoprotein lipase (LPL). The aim of this work was to analyse whether the changes in triglycerides shown by TCZ-treated RA patients could stem from the dysregulation that can occur in these regulatory molecules.

Effects of COVID-19 vaccination on disease activity in patients with rheumatoid arthritis and psoriatic arthritis on targeted therapy in the COVIDSER study.

Objective: To investigate the influence of COVID-19 vaccination on disease activity in rheumatoid arthritis (RA) and psoriatic arthritis (PsA) patients under targeted therapies.

Patients And Methods: 1765 vaccinated patients COVID-19, 1178 (66.7%) with RA and 587 (33.

Development of a web tool to calculate the cumulative dose of glucocorticoids.

Introduction: Glucocorticoids are associated with serious side effects related to dosing and time of use. Unfortunately, there is no standard method for determining glucocorticoid exposure, especially in patients undergoing long-term treatment.

Objective: The aim of this work was to create a free and easy-to-use web application to calculate, in a systematic way, the total cumulative dose of corticosteroids.

Long-term retention of golimumab treatment in clinical practice in a large cohort of patients with rheumatoid arthritis, axial spondyloarthritis and psoriatic arthritis.

Aim: To assess the golimumab retention rate during up to 8 years of follow up, and any associated factors.

Methods: Retrospective analysis of the BIOBADASER (Spanish registry of biological drugs) database, assessing all adults who had ever started golimumab >6 months before the analysis for an approved indication (rheumatoid arthritis [RA], axial spondyloarthritis [SpA] or psoriatic arthritis [PsA]).

Results: Among 885 patients (RA 267, axial SpA 370, PsA 248) receiving 944 cycles of golimumab, the retention rate of golimumab was 71.

Profibrotic Role of Inducible Heat Shock Protein 90α Isoform in Systemic Sclerosis.

Systemic sclerosis (SSc) is an autoimmune disease that affects skin and multiple internal organs. TGF-β, a central trigger of cutaneous fibrosis, activates fibroblasts with the involvement of the stress-inducible chaperone heat shock protein 90 isoform α (Hsp90α). Available evidence supports overexpression and secretion of Hsp90α as a feature in profibrotic pathological conditions.

Expert recommendations for the use of apremilast in psoriatic arthritis.

Introduction And Objectives: Despite the evidence, there are doubts about the positioning of apremilast in the psoriatic arthritis (PsA) treatment algorithm. The objective of this project was to collect the scientific evidence and the experience of a group of rheumatologists who are experts in the management of PsA with apremilast in clinical practice in Spain.

Material And Methods: A scientific committee made up of 6 experts proposed 5 clinical scenarios where the evidence on the use of apremilast in PsA was controversial: (i) Efficacy in peripheral PsA; (ii) Efficacy in enthesitis and dactylitis; (iii) Efficacy in PsA with skin involvement; (iv) Comorbidities; and (v) Apremilast safety.

The reality of Rheumatology in Spain and its autonomous communities before the pandemic.

Objectives: To determine the number of rheumatologists per 100,000 inhabitants working in public or private centres in Spain as a whole, and by Autonomous Community and their distribution by age and sex.

Material And Method: Cross-sectional study based on the information contained in the database of the Spanish Society of Rheumatology. Quality control was performed by contact (e-mail and telephone call) with the heads of the clinical services of each of the hospitals (public and private).

Association of Gender, Diagnosis, and Obesity With Retention Rate of Secukinumab in Spondyloarthropathies: Results Form a Multicenter Real-World Study.

Secukinumab has been shown effective for psoriatic arthritis (PsA) and axial spondylarthritis (AxSpA) in randomized trials. The aim of this study was to analyze baseline patient and disease characteristics associated with a better retention rate of secukinumab under real-world conditions. Real-life, prospective multicenter observational study involving 138 patients, 61 PsA and 77 AxSpA, who were analyzed at baseline, 6, 12 months and subsequently every year after starting secukinumab regardless of the line of treatment.

Role of targeted therapies in rheumatic patients on COVID-19 outcomes: results from the COVIDSER study.

Objectives: To analyse the effect of targeted therapies, either biological (b) disease-modifying antirheumatic drugs (DMARDs), targeted synthetic (ts) DMARDs and other factors (demographics, comorbidities or COVID-19 symptoms) on the risk of COVID-19 related hospitalisation in patients with inflammatory rheumatic diseases.

Methods: The COVIDSER study is an observational cohort including 7782 patients with inflammatory rheumatic diseases. Multivariable logistic regression was used to estimate ORs and 95% CIs of hospitalisation.

Prevalence of symptomatic osteoarthritis in Spain: EPISER2016 study.

Introduction: The Spanish Society of Rheumatology carried out the EPISER2000 study in 2000 to determine the prevalence of osteoarthritis and other rheumatic diseases in the Spanish population. Recent sociodemographic changes and lifestyle habits in Spain justified updating the epidemiological data on osteoarthritis and other rheumatic diseases (EPISER2016-study).

Objective: To estimate the prevalence of symptomatic osteoarthritis of the cervical spine, lumbar spine, hip, knee and hand in the adult population in Spain.

Prevalence of gout in the adult general population in Spain: Estimating the proportion of undiagnosed cases.

Objective: To estimate the prevalence of gout in Spain.

Methods: Cross-sectional, population-based study of people aged 20 years or older. First, randomly selected individuals were contacted by telephone and rheumatic disease screening questionnaires were conducted.

Changes in the use patterns of bDMARDs in patients with rheumatic diseases over the past 13 years.

The better understanding of the safety of biologic DMARDs (bDMARDs), as well as the emergence of new bDMARDs against different therapeutic targets and biosimilars have likely influenced the use patterns of these compounds over time. The aim of this study is to assess changes in demographic characteristics, disease activity and treatment patterns in patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA), or ankylosing spondylitis (AS) who started a first- or second-line biologic between 2007 and mid-2020. Patients diagnosed with RA, PsA or AS included in the BIOBADASER registry from January 2007 to July 2020 were included.