Publications by authors named "Jiram Torres Ruiz"

Objectives: To assess the lung involvement in patients with Still's disease, an inflammatory disease assessing both children and adults. To exploit possible associated factors for parenchymal lung involvement in these patients.

Methods: A multicentre observational study was arranged assessing consecutive patients with Still's disease characterized by the lung involvement among those included in the AIDA (AutoInflammatory Disease Alliance) Network Still's Disease Registry.

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Objective: Being Mexico a very diverse developing country, the access to health care varies among geographical regions. We aimed to assess the differences in clinical features and treatment prescription in 3 regions of Mexico using data from the Mexican Adverse Events Registry (BIOBADAMEX).

Methods: We included all BIOBADAMEX patients from 2016 to 2023, compared the prescription patterns, the sociodemographic, clinical, and treatment characteristics between the northern (NR), central (CR), and southern regions (SR), and addressed the treatment survival by calculating hazards ratios (HRs).

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  • 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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Objective: We aimed to (1) evaluate the cardiac involvement, with a focus on myocarditis, in patients with Still disease included in the multicenter Autoinflammatory Disease Alliance (AIDA) Network Still disease registry; and (2) assess the predictive factors for myocarditis by deriving a clinical risk patient profile for this severe manifestation.

Methods: A multicenter observational study was established, in which consecutive patients with Still disease in the AIDA Network Still disease registry were characterized by cardiac involvement. Cardiac involvement was defined according to the presence of pericarditis, tamponade, myocarditis, and/or aseptic endocarditis.

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Systemic lupus erythematosus (SLE) is an autoimmune disorder that often leads to kidney injury, known as lupus nephritis (LN). Although renal biopsy is the primary way to diagnose LN, it is invasive and not practical for regular monitoring. As an alternative, several groups have proposed urinary extracellular vesicles (uEVs) as potential biomarkers for LN, as recent studies have shown their significance in reflecting kidney-related diseases.

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  • Idiopathic inflammatory myopathies (IIM) and dysferlinopathies both cause muscle inflammation and weakness but have different underlying causes and implications.
  • A study analyzed ultrasound differences in muscle abnormalities between 11 patients with dysferlinopathies and 11 patients with IIM, focusing on 20 muscles to see if ultrasound could aid in diagnosis.
  • Results showed that specific muscle sets (biceps, quadriceps, gastrocnemius) could accurately distinguish between the two conditions, suggesting ultrasound is a valuable diagnostic tool for muscle diseases.
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  • The study focuses on "post-acute COVID-19 syndrome" (PACS), also known as long COVID, which affects a significant portion of survivors, with 37.2% of participants meeting PACS criteria 7-19 months post-infection.
  • Researchers examined clinical, immunological, and metabolomic factors in 51 patients and found notable differences in immune responses and metabolite levels associated with PACS.
  • Key findings included elevated levels of certain immune cells and metabolites like interleukin-8 and pyruvate in PACS patients, suggesting that these biomarkers during acute infection could help predict the risk of developing PACS.
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  • Anti-synthetase syndrome (AS) is a type of inflammatory muscle disease marked by specific autoantibodies and is often associated with myositis and lung issues; it sometimes includes skin lesions like those in dermatomyositis.
  • A case study of a 57-year-old man revealed a rare combination of AS, deep morphea, vasculitic neuropathy, and myelodysplastic syndrome, raising questions about shared underlying mechanisms among these conditions.
  • Despite receiving aggressive treatment, the patient experienced a severe decline and ultimately died from complications, underlining the complex interplay between AS and other inflammatory disorders.
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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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  • * A total of 99 adult IIM patients were assessed for various autoantibodies, revealing that 70.7% tested positive for at least one antibody related to CD, while duodenal biopsy confirmed CD in 2% of cases.
  • * The study found that specific antibodies (e.g., anti-MDA5 and anti-Mi2) were significantly associated with positive CD serology, highlighting the importance of recognizing IIM patients as a high-risk group for
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  • The study investigates the relationship between Familial Mediterranean fever (FMF), a severe inflammatory condition, and the risk of cancer development compared to other diseases like fibromyalgia, Still's disease, and Behçet's disease.
  • Results show that FMF patients have a significantly lower risk for malignancies compared to fibromyalgia patients, with a risk ratio (RR) of 0.26; however, this risk is less clear when comparing with the other conditions.
  • Factors influencing cancer risk in FMF patients include age at onset and diagnosis, frequency of disease attacks, and treatment with specific biotechnological agents.
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Purpose: The clinical relevance of human leukocyte antigen (HLA) subtypes such as HLA-B51 on Behçet's disease (BD)-related uveitis and non-infectious uveitis (NIU) unrelated to BD remains largely unknown.

Methods: Data were prospectively collected from the International AIDA Network Registry for BD and for NIU. We assessed differences between groups (NIU unrelated to BD and positive for HLA-B51, BD-related uveitis positive for HLA-B51 and BD-related uveitis negative for HLA-B51) in terms of long-term ocular complications, visual acuity (VA) measured by best corrected visual acuity (BCVA), anatomical pattern, occurrence of retinal vasculitis (RV) and macular edema over time.

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  • Idiopathic inflammatory myopathies are rare autoimmune disorders that cause muscle weakness and involve inflammatory changes in muscle tissue.
  • The study investigated peripheral B cells in these patients, revealing significant changes in B cell subsets compared to healthy individuals, including decreases in memory and double-negative cells and an increase in naive B cells.
  • These findings suggest that B cells play an important role in the disease's development and could serve as potential biomarkers for diagnosis.
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Objectives: To assess nailfold video capillaroscopic (NVC) abnormalities and their association with clinical features, myositis-specific autoantibodies (MSA), and myositis-associated antibodies (MAA) in a large multi-ethnic cohort of patients with idiopathic inflammatory myopathies (IIM).

Methods: We recruited 155 IIM patients from three centres in Mexico, Spain, and the USA. We evaluated the clinical and laboratory features of the patients and performed semiquantitative and quantitative analyses of the NVC.

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  • 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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Aim: To explore if patient global assessment (PGA) is associated with inflammation over time and if associations are explained by other measures of disease activity and function in patients with idiopathic inflammatory myopathies (IIM).

Methods: PGA and systemic inflammatory markers prospectively collected over five years were retrieved from the International MyoNet registry for 1200 patients with IIM. Associations between PGA, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and creatine kinase (CK) were analyzed using mixed models.

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  • - This study investigates whether pediatric-onset, adult-onset, and elderly-onset Still's disease are the same condition or different diseases by comparing demographic, clinical, and treatment response data across these age groups.
  • - Out of 411 patients surveyed, most were adults (76.4%), while 15.8% were pediatric and 7.8% were elderly, with significant differences found in symptoms like skin rash and arthritis being more prevalent in children, and pleuritis in the elderly.
  • - Overall, while some minor differences in symptoms and lab results were noted among the age groups, the study concludes that Still's disease has similar demographic and treatment characteristics across pediatric, adult, and elderly patients.
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Background: Different patient clusters were preliminarily suggested to dissect the clinical heterogeneity in Still's disease. Thus, we aimed at deriving and validating disease clusters in a multicentre, observational, prospective study to stratify these patients.

Methods: Patients included in GIRRCS AOSD-study group and AIDA Network Still Disease Registry were assessed if variables for cluster analysis were available (age, systemic score, erythrocyte sedimentation rate (ESR), C reactive protein (CRP) and ferritin).

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  • The study investigates how the activity of systemic lupus erythematosus (SLE) affects the body's innate immune response by comparing SLE patients to healthy donors.
  • Researchers evaluated patients during disease flare-ups and after treatment, focusing on immune cell behaviors and markers through various laboratory techniques.
  • Findings indicate that higher disease activity correlates with altered immune cell functions, suggesting that disease severity affects patients' risk for infections and overall immune response.
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  • The study focuses on patients with Still's disease to identify clinical and laboratory signs associated with macrophage activation syndrome (MAS), a serious complication.
  • Out of 414 patients examined, 39 (9.4%) developed MAS, with several significant variables like liver involvement and high ferritin levels linked to its occurrence.
  • Multivariate analysis revealed that having hepatomegaly and monoarthritis were directly associated with MAS, while factors like a normal platelet count were protective against its development.
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Dermatomyositis (DM), antisynthetase syndrome (AS), immune-mediated necrotizing myopathy (IMNM), and inclusion body myositis (IBM) are four major types of idiopathic inflammatory myopathy (IIM). Muscle biopsies from each type of IIM have unique transcriptomic profiles. MicroRNAs (miRNAs) target messenger RNAs (mRNAs), thereby regulating their expression and modulating transcriptomic profiles.

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  • A study assessed the clinical characteristics and treatment effectiveness of methotrexate (MTX) in patients with Still's disease, focusing on changes in disease activity and inflammatory markers.
  • Among the 171 patients studied, MTX was commonly used with glucocorticoids (GCs), and many showed significant improvement, with 38.6% achieving clinical remission and reduced inflammation.
  • The results suggest that MTX is effective in managing Still's disease symptoms, reducing the need for GCs, though some patients discontinued MTX due to side effects or lack of efficacy.
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  • Immune checkpoint inhibitors (ICI) improve cancer treatment but can trigger immune-related conditions, including dermatomyositis (DM).
  • This study analyzed three DM cases linked to ICI from a patient cohort and reviewed existing literature on the topic.
  • All cases were associated with specific ICI drugs and showed a strong presence of anti-TIF1γ autoantibodies, suggesting these antibodies may contribute to developing DM in some patients.
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Studies of cellular and cytokine profiles have contributed to the inflammation hypothesis of schizophrenia; however, precise markers of inflammatory dysfunction remain elusive. A number of proton magnetic resonance spectroscopy (1H-MRS) studies in patients with first-episode psychosis (FEP) have shown higher brain levels of metabolites such as glutamate, myo-inositol (mI) and choline-containing compounds (tCho), suggesting neuroinflammation. Here, we present peripheral inflammatory profiles in antipsychotic-naive FEP patients and age-and-sex matched healthy controls, as well as cortical glutamate, mI and tCho levels using 1H-MRS.

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