Publications by authors named "Lazaros Sakkas"

Helicobacter pylori (Hp) has been postulated as an infectious trigger of psoriatic disease, namely psoriasis (Ps) and psoriatic arthritis (PsA), but meticulous antibody (ab) reactivity against all dominant and subdominant Hp antigens in demographically matched PsA and Ps patients and healthy controls has not been performed so far. IgG anti-Hp ab testing was performed by combining immunoblotting and line assays in 263 serum samples from 89 patients with PsA, 114 patients with Ps, and 60 demographically matched healthy controls (HCs). Anti-Hp positivity did not differ between PsA, Ps, and HCs (P > 0.

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Systemic sclerosis (SSc), a chronic systemic autoimmune disease, affects skin and internal organs compromising organ function and leading to significant morbidity and poor health-related quality of life (HrQoL). This cross-sectional study investigated whether HrQoL is influenced by trait emotional intelligence (TEI). Sixty patients with SSc (Female: 86.

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CD21 B cells have recently been found increased in SSc-associated digital ulcers (DUs) or interstitial lung disease (ILD). To further characterize CD21 B cells which encompass autoreactive cells, we analyzed their expression of the inhibitory CD32 receptor in SSc. Peripheral blood mononuclear cells from 27 patients with SSc and 15 age-and sex-matched healthy controls (HCs) were analyzed with multicolor flow cytometry.

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Healthy females and males differ in their immune cell composition and function and females generally mount stronger immune response than males and are much more susceptible to autoimmune rheumatic diseases. Females differ from males in sex hormones, and X-chromosome genes. Sex hormones affect immune cells and responses, and may induce epigenetic DNA changes.

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Cachexia is an early result of rheumatoid arthritis (RA) (rheumatoid cachexia, RC), characterised mainly by involuntary loss of fat-free mass. RC is apparent in 1-67% of patients with RA, depending on the diagnostic criteria applied and the method used for the assessment of body composition. RC is associated with increased inflammation and disability, lower health perception, and greater mortality risk.

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The pathogenesis of SSc is incompletely understood, but several lines of evidence suggest that B cells are involved. Effector B (Beff) cells are hyperactivated and produce autoantibodies (autoAbs), and regulatory B cells (Bregs) are decreased, although a recent study reported a defect in central B cell tolerance. AutoAbs appear before fibrosis, and some have direct profibrotic effects, while others also induce microvasculopathy.

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Theoretical evidence and previous studies suggest that oralnutrient supplementation (ONS) with n-3 fatty acids for rheumatoid arthritis (RA) has the potential to lower disease activity indicators and non-steroidal anti-inflammatory drug (NSAID) uptake. A systematic search was conducted on five databases/registries from inception until May 23, 2021 with the aim to identify randomized placebo-controlled trials comparing n-3 supplements to placebo on disease-specific outcomes. A total of 23 studies matched the criteria (PROSPERO: CRD42019137041).

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Systemic sclerosis (SSc) is a rare fibrotic rheumatic disease, associated with psychological distress and increased morbidity and mortality due to skin involvement and internal organ damage. The current understanding of the complex pathogenesis is yet incomplete and disease therapeutic algorithms are far from optimal. Immunologic aberrations are considered key factors for the disease, along with vascular involvement and excess fibrosis.

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Introduction: Limited data from clinical trials in multiple sclerosis (MS) reported that minocycline, a widely used antibiotic belonging to the family of tetracyclines (TCs), exerts a beneficial short-lived clinical effect A similar anti-inflammatory effect of minocycline attributed to a deviation from Th1 to Th2 immune response has been reported in experimental models of MS. Whether such an immunomodulatory mechanism is operated in the human disease remains largely unknown.

Aim: To assess the immunomodulatory effect of tetracyclines, and in particular minocycline and doxycycline, in naïve and treated patients with MS.

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The anthocyanidin delphinidin reduces psoriasiform lesions and inflammatory mediators in human cell culture systems. Its role in psoriatic disease has not yet been investigated. We assessed delphinidin's in vitro immunomodulatory effect on ex vivo stimulated peripheral blood mononuclear cells (PBMCs) from 50 individuals [26 with psoriasis, 10 with psoriatic arthritis (PsA) and 14 healthy controls (HCs)].

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Background And Aims: Anti-Ro52 antibody (Ab) reactivity is highly prevalent in autoimmune rheumatic diseases (ARDs), mainly Sjögren's syndrome (SjS) and systemic lupus erythematosus (SLE), but also in other inflammatory disorders. Thorough assessment of the prevalence, clinical significance and epitope specificity of Ro52-autoAbs in cancerous diseases is still lacking.

Material And Methods: Anti-Ro52 Ab reactivity was tested in a large cohort of 490 patients with various malignant diseases.

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Objectives: Predicting serious infections (SI) in patients with rheumatoid arthritis (RA) is crucial for the implementation of appropriate preventive measures. Here we aimed to identify risk factors for SI and to validate the RA Observation of Biologic Therapy (RABBIT) risk score in real-life settings.

Methods: A multi-centre, prospective, RA cohort study in Greece.

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The recent passing away of Dr. Tomisaku Kawasaki, who first described what is now known as Kawasaki Disease (KD), and recent reports of a multisystem inflammatory disease in children associated with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (MIS-C), makes a review on KD and MIS-C timely. Kawasaki Disease is a systemic vasculitis with predilection for coronary arteries occurring mostly in early childhood.

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Objectives: Rheumatoid arthritis (RA) can lead to joint destruction and early institution of effective treatment can preserve joint function. Biomarkers can establish early diagnosis and predict effect of treatment. Vault particles, large cytoplasmic ribonucleoprotein particles that participate in inflammation, might serve as biomarkers.

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Background: Data regarding the real-life predictors of low disease activity (LDA) in rheumatoid arthritis (RA) patients are limited. Our aim was to evaluate the rate and predictors of LDA and treatment patterns in RA.

Methods: This was a multicenter, prospective, RA cohort study where patients were evaluated in two different time points approximately 12 months apart.

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Reactivation of viruses occurs in autoimmune disorders in the setting of certain immunosuppressive drugs. We describe a 54-year-old female with systemic sclerosis and extensive cutaneous calcinosis who had been treated with methotrexate for 18 months and presented with headache and neurological deficits. She was diagnosed with progressive multifocal leukoencephalopathy, a rare disease caused by JC virus.

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Immune checkpoint inhibitors (ICI) associate with a wide range of immune-related adverse events (Ir-AE), including musculoskeletal manifestations. We aimed at identifying all studies reporting musculoskeletal Ir-AE. An electronic (Medline, Scopus and Web of Science) search was performed using two sets of key words.

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Treatment of acute gout consists of non-steroidal anti-inflammatory drugs (NSAIDs), colchicine and steroids. However, the typical patient with gout has multiple comorbidities such as cardiovascular disease, hypertension, renal dysfunction or diabetes/metabolic syndrome that represent contraindications to these therapeutic options. The aim of this study is to review the available evidence regarding the use of ACTH as an alternative therapeutic option for acute gout and explore potential mechanisms of action.

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Anti-nuclear antibodies (ANA) are frequently detected in patients with psoriasis (Ps) and psoriatic arthritis (PsA), but their target autoantigens remain unknown. We assessed antibody (ab) reactivity against 23 known nuclear antigens in patients with Ps and PsA and assess the effects of secukinumab (anti-IL17A) treatment on ANA levels. A total of 201 patients, 101 with Ps and 100 with PsA, and 50 ANA-negative healthy controls (HCs) were tested for ANAs by a line immunoassay testing reactivity to 23 nuclear antigens.

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Anti-Ro52 autoantibody (autoAb), highly prevalent in Sjogren's syndrome (SjS) and systemic lupus erythematosus (SLE), is also frequent in systemic sclerosis (SSc). Viral agents, such as human cytomegalovirus (HCMV), have been considered as a trigger for SSc and SSc-associated autoAbs. To seek for antigen-specific anti-HCMV associations with anti-Ro52, we assessed the dominant anti-HCMV ab responses in anti-Ro52 antibody (ab)-positive and -negative patients with SSc and compared them with those in SLE and SjS.

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The current use of chloroquine and/or hydroxychloroquine, a drug currently used to treat autoimmune rheumatic diseases, in treating severe acute respiratory syndrome caused by coronavirus 2 (SARSCoV-2) or COVID-19-infected patients with pneumonia is a matter of intense consideration. We wish to enter the ongoing debate as to whether this well-known drug must be given to Greek COVID-19-infected patients, especially those with pneumonia. Our arguments are based on the existing data and the capacity of the Greek health system to afford potent anti-viral treatments, which are under immense investigation.

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Helicobacter pylori (Hp) is a likely trigger of systemic sclerosis (SSc), but systemic antigen-specific antibody (Ab) responses in a well-defined cohort of SSc patients have not been thoroughly assessed. Line immunoassay and immunoblotting testing Abs against 15 Hp antigens were performed in 91 SSc patients and 59 demographically matched healthy controls (HCs). Results were validated in an independent cohort of 35 SSc patients.

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Anti-synthetase syndrome is an autoimmune disorder characterized by the presence of autoantibodies against aminoacyl transfer RNA (tRNA) synthetases, and myositis, interstitial lung disease (ILD), arthritis, fever and Raynaud's phenomenon (RP). We present a 54-year-old woman, who complained of fatigue, low-grade fever, myalgias, arthralgias, RP and dyspnoea on exertion. Chest CT scan revealed features of interstitial lung disease.

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