Publications by authors named "Gerard Espinosa"

VEXAS syndrome is a haemato-inflammatory disease caused by somatic UBA1 mutations and characterized by cytoplasmic vacuoles in myeloid and erythroid precursor cells. Although there is currently no standard treatment algorithm for VEXAS, patients are generally treated with anti-inflammatory therapies focused on symptom management, with only partial effectiveness. Hypomethylating agents (HMA) have shown promise in VEXAS patients with concomitant myelodysplastic syndrome (MDS), while the efficacy of HMA in VEXAS patients without MDS is largely unknown.

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: The clinical and laboratory features of patients with non-criteria obstetric antiphospholipid syndrome (NC-OAPS), as well as their pregnancy outcomes and ideal treatment are not clearly determined. The aim of this study is to describe the characteristics and outcomes of pregnancies in NC-OAPS and compare them with an obstetric APS (OAPS) cohort. : This is a retrospective study conducted on a cohort of women referred to a high-risk obstetric unit of a tertiary hospital.

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Article Synopsis
  • The study aimed to explore gender differences in the phenotypical expression of Behçet's disease (BD) using data from the International AIDA Network Registry, focusing on damage index, disease manifestations, and cardiovascular risk.
  • A total of 1024 patients (567 males and 457 females) were examined, revealing that males had a significantly higher overall damage index and more frequent occurrences of uveitis and vascular involvement, while females showed higher instances of arthralgia, arthritis, and CNS involvement.
  • Key factors associated with major organ involvement included male gender, treatment with biologic agents, origin from endemic regions, and longer disease duration, indicating a more severe course of BD in males compared to females.
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The catastrophic antiphospholipid syndrome (CAPS) is a rare life-threatening clinical condition that represents the most severe clinical presentation of the antiphospholipid syndrome (APS). It was first described in 1992 in a group of patients that presented with multiorgan involvement and microangiopathic features of APS. Most of the current knowledge of CAPS comes from the analysis of all cases collected at the "CAPS Registry" that was created in 2000 to perform studies on this condition.

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Objective: Primary antiphospholipid syndrome (PAPS) is a rare autoimmune disease characterized by the presence of antiphospholipid antibodies and the occurrence of thrombotic events and pregnancy complications. Our study aimed to identify novel genetic susceptibility loci associated with PAPS.

Methods: We performed a genome-wide association study comprising 5,485 individuals (482 affected individuals) of European ancestry.

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Objectives: Autoantibodies targeting intracellular proteins are common in various autoimmune diseases. In the context of myositis, the pathologic significance of these autoantibodies has been questioned due to the assumption that autoantibodies cannot enter living muscle cells. This study aims to investigate the validity of this assumption.

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Objectives: Oral and genital ulcers are the hallmark manifestation of Behçet's disease (BD), significantly impacting patients' quality of life. Our study focuses on comparing the effectiveness and safety of TNF inhibitors (TNFis) and apremilast in controlling oral ulcers of BD, aiming to provide evidence-based guidance for physicians in selecting appropriate treatment modalities.

Methods: A retrospective analysis was performed on BD patients treated between December 2016 and December 2021 with TNFis or apremilast for refractory oral ulcers.

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Anti-dsDNA, anti-Sm, and anti-ribosomal-P autoantibodies are hallmarks of systemic lupus erythematosus (SLE), being anti-dsDNA and anti-Sm included in 2019-ACR/EULAR SLE-Classification Criteria. Enzyme-linked (ELISA) and chemiluminescence assays (CIA) are widely established in immunology laboratories, but new technologies, such as particle-based multi-analyte technology (PMAT), are nowadays available. The present study aimed to compare the presence of anti-dsDNA and anti-Sm autoantibodies measured by CIA and PMAT and analyze diagnostic and clinical SLE activity performance.

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Article Synopsis
  • - The study evaluates the effectiveness and safety of adalimumab in treating non-infectious uveitis across four Spanish hospitals from 2012 to 2022, analyzing patient data on relapses, inflammation, and medication dosage changes.
  • - Out of 122 patients, most were middle-aged Caucasian women with refractory uveitis; results showed significant reductions in both relapses and corticosteroid use, along with improved visual acuity.
  • - Overall, adalimumab demonstrated high efficacy and safety in managing non-infectious uveitis, with minimal serious side effects and a low incidence of anti-drug antibody development.
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Objective: To develop multidisciplinary recommendations based on available evidence and expert consensus for the therapeutic management of patients with refractory Behçet's syndrome (BS) (difficult to treat, severe resistant, severe relapse) to conventional treatment.

Methods: A group of experts identified clinical research questions relevant to the objective of the document. These questions were reformulated in PICO format (patient, intervention, comparison and outcome).

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Purpose: Hydroxychloroquine is currently recommended for the treatment of systemic lupus erythematosus (SLE), but it can cause irreversible retinal toxicity. This study aimed to identify factors associated with early hydroxychloroquine-induced retinal toxicity in patients with SLE from a single centre for 20 years.

Methods: SLE patients diagnosed between 1998 and 2017 and followed up for at least 1 year were included.

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Article Synopsis
  • The study focuses on defining and characterizing the disease phenotypes of adult patients with undifferentiated autoinflammatory diseases who experienced recurrent fevers and inflammatory issues, with inconclusive genetic tests.
  • It analyzed 134 patients from a reference center over several years, identifying five phenotypes, including a significant number meeting the criteria for PFAPA syndrome and several with varying predominant symptoms.
  • The treatment analysis found that medications like prednisone, colchicine, and anakinra were commonly prescribed, with effectiveness rates of 41.3%, 40.2%, and 58.3% for complete responses, respectively, with specific preferences for medications based on patient phenotype.
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Objective: To analyze the demographic, clinical, and laboratory characteristics of catastrophic antiphospholipid syndrome (CAPS) patients with cardiac involvement, and to identify the factors associated with this cardiac involvement.

Material And Methods: Based on the analysis of the "CAPS Registry", the demographic, clinical, and serological characteristics of patients with cardiac involvement were analyzed. Cardiac involvement was defined as heart failure, valvular disease, acute myocardial infarction, pericardial effusion, pulmonary arterial hypertension, systolic dysfunction, intracardiac thrombosis, and microvascular disease.

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Objective: To compare multimodal structural and functional diagnostic methods in patients with systemic lupus erythematosus (SLE) treated with hydroxychloroquine, to identify the best complementary approach for detecting subclinical retinal toxicity.

Methods: A cross-sectional, unicentric study was conducted on patients with SLE treated with hydroxychloroquine. Each patient underwent a comprehensive ophthalmic evaluation, comprising structural tests (spectral-domain optical coherence tomography (SD-OCT), OCT, OCT angiography (OCTA), fundus autofluorescence (FAF)) and functional tests (automated perimetry for visual field (VF) testing, multifocal electroretinography (mfERG)).

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Background: Microscopic polyangiitis (MPA) and granulomatosis with polyangiitis (GPA) are the two major antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV).

Objectives: To characterize a homogenous AAV cohort and to assess the impact of clinicopathological profiles and ANCA serotypes on clinical presentation and prognosis. Clinical differences in GPA patients according to ANCA serotype and the diagnostic yield for vasculitis of biopsies in different territories were also investigated.

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Objectives: Primary antiphospholipid syndrome (PAPS) is a rare autoimmune disease characterized by the presence of antiphospholipid antibodies and the occurrence of thrombotic events and pregnancy complications. Our study aimed to identify novel genetic susceptibility loci associated with PAPS.

Methods: We performed a genome-wide association study comprising 5,485 individuals (482 affected individuals) of European ancestry.

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Objectives: To analyze pregnancy outcomes of patients with primary systemic vasculitis followed in a third-level referral center.

Methods: Retrospective cohort study of all pregnant women with systemic vasculitis followed between 2009 and 2022 at the High-Risk Pregnancy Clinic of the Department of Systemic Autoimmune Diseases of the Hospital Clínic, Barcelona.

Results: Twenty women with primary vasculitis were identified, with a total of 30 pregnancies.

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Catastrophic antiphospholipid syndrome (CAPS) is a severe condition with high mortality. Since its description in 1992, an important effort has been made to improve and disseminate knowledge on CAPS. Most of our current knowledge comes from the studies performed using the CAPS Registry, a database created in 2000 to gather as many cases as possible in order to better define this disease.

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Article Synopsis
  • Myositis is an autoimmune muscle disease characterized by autoantibodies that target proteins within muscle cells, but their impact on disease development was previously unclear.* -
  • This study utilized confocal microscopy and bulk RNA sequencing on muscle biopsies to investigate the presence and effects of these autoantibodies, revealing they accumulate in muscle fibers and disrupt the normal function of their target proteins.* -
  • Findings showed that the internalization of these autoantibodies led to significant changes in gene expression and function, indicating that they play a crucial role in causing the pathology associated with myositis.*
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Objectives: To evaluate the prevalence, magnitude, and potential determinants of work productivity impairment in patients with Behçet's Syndrome (BS), focusing on the role of irreversible organ damage.

Methods: A post-hoc analysis of the BS overall damage index (BODI) prospective validation study was performed. Demographics and clinical features were recorded in all patients.

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Objectives: To describe the pulmonary involvement in patients with catastrophic antiphospholipid syndrome (CAPS), focusing on its relationship with extrapulmonary involvement, laboratory, radiological, and pathological findings.

Methods: This retrospective cross-sectional study includes all patients grouped in the "CAPS Registry". All cases were reviewed, and those with pulmonary thromboembolism (PE) and/or diffuse alveolar hemorrhage (DAH) were selected.

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Article Synopsis
  • Lysinuric protein intolerance (LPI) is a rare genetic metabolic disorder caused by mutations in the SLC7A7 gene, which affects the transport of cationic amino acids and can lead to serious complications during pregnancy.
  • A 28-year-old woman with LPI faced several challenges during her pregnancy, including early miscarriages, food aversion, and increased risks of growth restriction and complications such as preeclampsia.
  • Despite initial concerns about her desire for a natural childbirth without medication, the use of innovative strategies and interdisciplinary teamwork allowed for a successful delivery, highlighting the importance of considering patients' preferences in the context of their medical conditions.
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Background: Systemic lupus erythematosus is a chronic, multisystem, inflammatory disease of autoimmune etiology occurring predominantly in women. A major hurdle to the diagnosis, treatment, and therapeutic advancement of this disease is its heterogeneous nature, which presents as a wide range of symptoms such as fatigue, fever, musculoskeletal involvement, neuropsychiatric disorders, and cardiovascular involvement with varying severity. The current therapeutic approach to this disease includes the administration of immunomodulatory drugs that may produce unfavorable secondary effects.

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