Publications by authors named "Omma A"

Objectives: The aim of this study is to investigate the characteristics of Primary Sjögren's syndrome (pSS)- interstitial lung disease (ILD) patients and compare them to those of pSS patients without ILD in the tertiary pSS-ILD cohort to evaluate potential risk factors for ILD occurrence and disease progression.

Methods: Patients followed up who met the 2016 American College of Rheumatology-European League Against Rheumatism classification criteria for pSS were retrospectively analyzed. The patients were grouped as those with ILD and those without ILD according to medical records.

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Introduction: Obese rheumatoid arthritis (RA) patients often show reduced responses to traditional treatments, including TNF inhibitors (TNFi). Considering the different mechanisms of action it is important to evaluate the efficacy of tofacitinib in obese patients. This study aims to explore the impact of obesity on the drug survival of tofacitinib in RA patients.

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  • The study analyzed temporal artery biopsy (TAB) results of 90 patients diagnosed with Giant Cell Arteritis (GCA) to determine histopathological findings related to definite vasculitis based on 2022 ACR/EULAR criteria.
  • Of the patients, 73.3% were initially diagnosed with vasculitis, and additional evaluation of specimens led to a further 41.6% showing definite vasculitis signs.
  • The analysis also revealed that biopsy length was a key indicator for diagnosing definite vasculitis, with a notable sensitivity and specificity ratio, suggesting that longer biopsies improve diagnostic accuracy.
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Background/aim: The objective of this study is to evaluate the clinical presentations and adverse outcomes of Coronavirus Disease 2019 (COVID-19) in patients with systemic sclerosis (SSc) and assess the impact of SSc features on the clinical course of COVID-19.

Materials And Methods: In this multicenter, retrospective study, SSc patients with COVID-19 were included. Clinical features of SSc, along with detailed COVID-19 data, were extracted from medical records and patient interviews.

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Post-thrombotic syndrome (PTS) is a frequent and important consequence of deep vein thrombosis (DVT) for Behcet`s disease (BD) patients. Although various clinical scales are used to diagnose PTS, Villalta scale was accepted as the standard tool to diagnose and grade the severity of PTS. Poor quality of life (Qol) in the general population was defined for patients with PTS, however, studies in BD patients with PTS is limited.

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Objectives: This study aimed to translate the Scleroderma Skin Patient-Reported Outcome (SSPRO) questionnaire to the Turkish (SSPRO-T) language and to assess its validity and reliability.

Patients And Methods: Fifty-four systemic sclerosis (SSc) patients (51 females, 3 males; mean age: 49.8±10.

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Background: We aimed to investigate coronavirus diease 2019 (COVID-19) outcomes in patients with amyloid A protein (AA) amyloidosis secondary to rheumatic diseases and discuss factors associated with disease course.

Methods: A retrospective cohort was formed from adult patients with a diagnosis of AA amyloidosis. In patients with a positive severe acute respiratory syndrome coronavirus 2 polymerase chain reaction (PCR) test, rates of hospitalization, intensive care unit admission and mortality due to COVID-19 were collected from medical records.

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  • The study investigates the effectiveness of two common immunosuppressive agents, methotrexate (MTX) and azathioprine (AZA), as first-line treatments for patients with Takayasu's arteritis (TAK), analyzing patient outcomes and safety.
  • A total of 301 TAK patients from 10 centers were included; findings revealed similar remission and relapse rates between MTX and AZA, but a significantly higher rate of vascular surgery in the AZA group compared to MTX.
  • The study also noted that patients on MTX were more likely to receive lower doses of glucocorticoids post-treatment compared to those on AZA, indicating different management outcomes between the
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  • - The study investigated the occurrence of spondyloarthritis (SpA) features in 350 patients with Takayasu arteritis (TAK), finding that 8.8% had additional SpA-related conditions, such as inflammatory bowel disease (IBD) or psoriasis.
  • - Patients with both TAK and SpA displayed earlier onset of disease symptoms and required more aggressive biological treatments for active vasculitis compared to those with TAK alone.
  • - The research highlighted the overlap between TAK and SpA, suggesting a potential link in their pathogenesis, possibly related to an MHC class I allele similar to that seen in spondyloarthritis.
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  • A study examined cancer rates in patients with ANCA-associated vasculitis (AAV) by comparing them to cancer risks in the Turkish population and identifying independent risk factors.
  • Of the 461 AAV patients tracked, 19 developed cancer after an average follow-up of about 3.4 years, with higher cancer risks noted in older males and those with anti-PR3-ANCA positivity.
  • The overall cancer risk for AAV patients was 2.1 times higher than that of the general population, highlighting the need for targeted cancer screening, especially for lung and head-neck cancers in older male patients.
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Background/aim: The aim of the study was to evaluate serum calprotectin (CLP) levels in familial Mediterranean fever (FMF) patients and to investigate the utility of CLP in distinguishing patients with attack from patients without attack.

Material And Method: FMF patients, rheumatoid arthritis (RA) patients, and healthy controls were included. Serum calprotectin levels were quantified utilizing the enzyme-linked immunosorbent assay (ELISA) method.

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Aim: Familial Mediterranean fever (FMF) is the most common inherited autoinflammatory disease in the world. There are known triggers to initiate an FMF attack, yet potential effects of intrauterine devices (IUD) in women of reproductive age have not been evaluated before.

Method: Consecutive female patients with FMF who ever used IUD over the age of 18 were enrolled.

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  • * Researchers analyzed data from 330 patients diagnosed with GCA, finding that 18.8% experienced relapses during a follow-up period, and only 23.8% were able to stop GC treatment entirely.
  • * The study highlighted that a significant portion of patients (66.2%) had at least one indication of damage due to vasculitis, and there were also considerable side effects related to GC treatment.
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Background: Behçet's disease is a systemic, inflammatory disease affecting multiple organs. Vascular involvement is the main cause of morbidity and mortality in Behçet's disease patients. Though clinically well-defined, there is limited information related to disease pathogenesis and vascular incidence in this patient group.

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Background: Antiphospholipid syndrome (APS) is a systemic autoimmune disorder characterized by persistent antiphospholipid antibodies (aPLs) with arterial and venous thrombosis and/or pregnancy morbidity. In recent years, several studies have highlighted the potential role of non-criteria aPL in diagnosing APS patients.

Aim: This study aimed to determine the association of the presence of non-criteria aPL antibodies to the clinical and laboratory features of patients with a diagnosis of APS.

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Background: The aim of this study is to determine the demographic, clinical and laboratory characteristics of the patients who followed up with the diagnosis of sarcoidosis, to investigate the distribution frequency of rheumatological findings and to examine the disease management from the perspective of rheumatology.

Methods: Patients who were followed up with the diagnosis of sarcoidosis in the rheumatology clinic of Ankara City Hospital between November 2019 and November 2022 were evaluated. Demographic, clinical, radiological, serological, laboratory, and histopathological findings, and rheumatological, systemic, and locomotor system examination findings of the patients were obtained from the medical data registered in the hospital.

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  • The study looked at how well a medication called tocilizumab (TCZ) works for people with rheumatoid arthritis (RA) who didn't respond well to other treatments.
  • Researchers collected data from 258 patients using a special online registry in Turkey to track their health and any side effects.
  • TCZ showed good results, with over 80% of patients still using it after a year, and it helped reduce their disease symptoms safely.
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Background: We aimed to investigate the frequency of infestation and clinical implications in connective tissue disease patients with facial erythema.

Methods: Patients diagnosed with a connective tissue disease and had facial erythema were consecutively enrolled in the study from 2019-2020. An age and gender matched control group was formed from healthy volunteers.

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The immunogenicity of vaccines decreases over time, causing a need for booster doses. This study aimed to present the long-term (Day 84) immunogenicity results of the double-blind, randomized, controlled, phase II Hybrid COV-RAPEL TR Study (NCT04979949), in which the TURKOVAC or CoronaVac vaccines were used as a booster after the second dose of primary vaccination with CoronaVac. A total of 190 participants from the Hybrid COV-RAPEL TR Study, who had both Day 28 and Day 84 immunogenicity results, were included.

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Objective: Semaphorin 3A (Sema3A) plays a regulatory role in immune responses. The aim of this study was to evaluate Sema3A levels in patients with systemic sclerosis (SSc), especially in major vascular involvements such as digital ulcer (DU), scleroderma renal crisis (SRC), pulmonary arterial hypertension (PAH), and to compare Sema3A level with SSc disease activity.

Methods: In SSc patients, patients with DU, SRC, or PAH were grouped as major vascular involvements and those without as nonvascular, and Sema3A levels were compared between the groups and with a healthy control group.

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  • The study assessed the effectiveness of ustekinumab for treating enteropathic arthritis by reviewing cases from published literature from 2010 to 2021.
  • A total of 11 patients were evaluated, with all achieving remission for inflammatory bowel disease and 9 out of 11 for enteropathic arthritis following the treatment.
  • Results suggest that ustekinumab could be a suitable treatment option for patients with enteropathic arthritis, as it significantly addressed symptoms and extraintestinal issues.
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The JAK-STAT pathway is involved in the pathogenesis of both the inflammatory bowel disease (IBD) and spondyloarthropathy group of diseases. The purpose of this study was to evaluate the effectiveness of tofacitinib, a Janus kinase inhibitor, in the treatment of enteropathic arthritis (EA). The study included seven patients, four from the authors' follow-up and three from the literature.

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Background: The etiology of Behçet's disease (BD) is not clearly known, however, abnormal activity in T helper (Th) 1, Th 17, and regulatory T cells (Treg) has critical importance in pathogenesis. It has been shown that the intestinal microbiome can be effective in the modulation of these immune abnormalities in BD patients. Breastfeeding increases the maturation of the infant's intestinal permeability by affecting the newborn's immature intestinal microbiome and metagenome.

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Introduction: Rituximab, which is used in autoimmune rheumatic diseases (ARD), can cause both an increased risk of development of COVID-19 disease and re-infection due to its potent and long-acting immunosuppression. So, we aimed to evaluate the frequency, risk factors and re-infection rates of COVID-19 in ARD patients receiving rituximab.

Methods: A single-center retrospective study was performed with patients receiving rituximab for ARD in 12 months before the onset of COVID-19 in Turkey.

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