Publications by authors named "Petros Sfikakis"

Objective: Cardiovascular disease is a leading cause of mortality in Systemic Lupus Erythematosus (SLE). We assessed atherosclerotic plaque progression and incident cardiovascular events in SLE patients over a 10-year follow-up.

Methods: We prospectively analyzed 738 carotid ultrasound measurements (413 in SLE patients and 325 in age/sex-matched healthy controls [HC]) to assess new plaque development from baseline to 3-, 7-, and 10-year follow-up.

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The prevalence of systolic hypertension phenotypes based on simultaneous 24-h brachial (br) and aortic (ao) ambulatory blood pressure monitoring (ABPM) remains unknown. We sought to describe their prevalence and associations with hypertension mediated organ damage (HMOD). Participants with 24-h br and ao ABPM, carotid ultrasound and echocardiography data were categorized into 4 systolic hypertension phenotypes: sustained systolic br and ao normotension (SSN), isolated br systolic hypertension (IbrSH), isolated ao systolic hypertension (IaoSH) and sustained br and ao systolic hypertension (SSH).

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Background: The aim of this study was to evaluate the association between simple, combined lipid biomarkers, and 20-year cumulative incidence of new type 2 diabetes mellitus (T2DM) among adults participating in the ATTICA cohort study (2002-2022).

Methods: The present analysis included data from 2000 individuals free of T2DM at baseline (age 43 ± 13 years; 51% women). Sociodemographic, anthropometric, lifestyle, clinical, and biochemical parameters were collected at baseline and follow-up examinations; combined lipid markers were evaluated.

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Background And Aims: Cardiovascular disease (CVD) and its related co-morbidities, i.e., type 2 diabetes mellitus (T2DM), hypertension and hypercholesterolemia, have an enormous burden on population health and healthcare systems.

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  • Research suggests that consuming fermented dairy products is linked to a lower risk of developing cardiovascular disease (CVD) over a 20-year period compared to non-fermented products.
  • A study in Greece involving over 3,000 participants showed that those who ate more than two servings of fermented dairy daily had a 1.5 times lower CVD risk.
  • The findings imply that dietary guidelines should encourage the consumption of fermented dairy products while cautioning against increased whole-fat dairy intake.
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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: To evaluate the cardiac involvement in patients with Still's disease with a focus on myocarditis included in the multicenter AIDA (AutoInflammatory Disease Alliance) network Still's disease registry. To exploit the predictive factors for myocarditis in deriving a clinical risk patient profile for this severe manifestation.

Methods: A multicenter observational study was built up assessing consecutive patients with Still's disease characterized by the cardiac involvement among those included in the AIDA Network Still's Disease Registry.

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Objective: The purpose of this study was to examine sex-related differences in the long-term (20-year) incidence of cardiovascular disease (CVD) and its determinants.

Methods: In 2002, 3,042 apparently healthy Greek adults were recruited, and in 2022, the 20-year follow-up was conducted with 2,169 participants, 1,988 of whom had completed CVD assessments. Sex-specific analyses using nested Cox proportional hazards were performed, as well as classification and regression tree (CRT) analysis modeling.

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Objective: To evaluate trends in physical activity levels and their associations with demographic characteristics, health status, and lifetime cardiovascular disease (CVD) risk.

Methods: A longitudinal analysis was conducted using data from 987 males and 1,001 females (45 ± 12 years old) participating in the ATTICA cohort study. Physical activity levels were assessed at baseline (2001-2002) and subsequent follow-ups (2006, 2012, and 2022).

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  • A study in Greece looked at how common autoimmune rheumatic diseases (ARD) are over time, comparing the years 2016-2019 to 2020-2023, including the effects of the Covid-19 pandemic.* ! -
  • The results showed that diseases like Rheumatoid Arthritis and Psoriatic Arthritis became more common during the pandemic period, especially among younger and older adults.* ! -
  • There was a big increase in the number of people with these diseases, so Greece will need more resources like doctors and medicine to help all these patients.* !
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  • The study investigates the link between frailty and subclinical cardiovascular disease in patients with systemic lupus erythematosus (SLE), emphasizing that cardiovascular disease is a leading cause of death in this population.
  • A total of 202 SLE patients underwent carotid/femoral artery ultrasounds, revealing that 25.7% had atherosclerotic plaques, with frailty levels assessed using the SLICC-FI scale showing various classifications among the patients.
  • The findings suggest that frailty, as measured by the SLICC-FI, is significantly associated with the presence of atherosclerotic plaques, indicating a need for further research on interventions to lower cardiovascular risk in SLE patients.
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  • The study aimed to evaluate the effectiveness of conventional immunosuppressive treatments in patients with lupus nephritis (LN) by assessing response rates over one year and identifying predictors of non-response.
  • Involving 140 patients, the research found that around 69.2% achieved a positive response by 12 months, although 20% needed changes in their treatment due to insufficient progress.
  • Increased chronicity at the start was linked to a higher chance of not responding to treatment, indicating that both chronicity and histological activity are important factors influencing patient outcomes.
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Inflammatory rheumatic diseases (IRDs), such as rheumatoid arthritis (RA) and spondyloarthropathy (SpA), comprise a heterogeneous group of immune-mediated disorders, characterised by the presence of localised and/or systemic inflammation. The limited knowledge of the pathogenesis and the complex mechanisms involved in the induction and maintenance of inflammation in IRDs have impeded the development of reliable biomarkers and the discovery of new therapeutic targets. Although the involvement of heterogeneous cell populations in the pathogenesis of IRDs has been recognised, the characterisation of these cellular subsets in the peripheral blood of patients has not been studied yet.

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Randomized controlled trials have recently shown that both the IL-6 inhibitor Tocilizumab and the antifibrotic Nintedanib are efficacious for Systemic Sclerosis (SSc)-associated progressive interstitial lung disease (ILD). Since real-world clinical data on Tocilizumab/Nintedanib combination are lacking, we report on their long-term safety and efficacy. Consecutive patients who received off-label Tocilizumab for SSc plus Nintedanib for progressive ILD were retrospectively studied.

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Objective: Pathogenesis of antiphospholipid syndrome (APS) remains poorly elucidated. We aimed to evaluate for the first time kidney transcriptome profiles in primary APS vs systemic lupus erythematosus (SLE) and control subjects.

Methods: We performed RNA sequencing on archival formalin-fixed paraffin-embedded kidney biopsies from APS (n = 4), SLE (n = 5) and control (n = 3) individuals, differential gene expression analysis (DGEA) and enrichment analysis using gene ontology (GO) and CORUM, KEGG and Reactome pathway databases.

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Background: Hypocortisolemia is associated with increased expression of NR3C1 (glucocorticoid receptor, GR) in blood cells. As endogenous cortisol production is decreased in some RA patients, we tested the hypothesis that GR may be aberrantly expressed in rheumatoid synovium.

Methods: We defined the cellular pattern of NR3C1 synovial expression using human and mouse single-cell RNA-sequencing data.

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Patients with systemic autoimmunity due to autoimmune rheumatic diseases (ARDs) or sarcoidosis frequently present with systemic manifestations including cardiac involvement. Cardiac rhythm disturbances and specifically ventricular arrhythmias (VAs) may affect the prognosis of these patients. Cardiovascular magnetic resonance imaging (CMR) is a non-invasive imaging modality that can provide valuable diagnostic and prognostic information in patients with ARDs or systemic autoimmunity in general.

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Objectives: Chronic inflammation promotes cardiovascular risk in rheumatoid arthritis (RA). Biological disease-modifying antirheumatic drugs (bDMARDs) improve disease activity and cardiovascular disease outcomes. We explored whether bDMARDs influence the impact of disease activity and inflammatory markers on long-term cardiovascular risk in RA.

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Objectives: The optimal duration of immunosuppressive (IS) treatment for lupus nephritis (LN) remains uncertain. We assessed the prevalence and predictors of IS tapering and discontinuation (D/C) in LN patients.

Methods: Data from 137 inception cohort LN patients were analyzed.

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Background: Limited evidence suggests that variants in TNFRSF11A gene, encoding RANK, may contribute to systemic autoinflammatory disease (SAID).

Aim/methods: To estimate the prevalence of TNFRSF11A variants in a cohort of patients with SAIDs screened for 26 related genes and describe the disease phenotypic expression.

Results: A total of 12 out of 167 patients, 7 males, aged (median) 38 years at disease onset, yielded at least one TNFRSF11A rare variant.

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The aim of this study was to evaluate the potential interplay between a carbohydrate diet and inflammation in atherosclerotic cardiovascular disease (ASCVD) development. ATTICA is a prospective observational study of 3042 adults free of cardiovascular disease (CVD) who were recruited in 2002 and followed for 20 years. Baseline data on carbohydrate intake and inflammatory biomarker levels were collected.

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Objective: Systemic sclerosis sine scleroderma (ssSSc), formally described in 1962, is a subset of SSc that, unlike limited cutaneous (lcSSc) and diffuse cutaneous (dcSSc) forms, lacks skin fibrosis. According to the 2013 American College of Rheumatology/European Alliance of Associations for Rheumatology criteria, SSc can be diagnosed in the absence of skin thickening, even if this is expected to develop later in disease course. Driven by a fatal case of ssSSc with cardiac involvement, we analyzed published data on ssSSc prevalence and severity.

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Objectives: Programmed cell death protein-1 (PD-1) maintains peripheral immune tolerance by preventing T cell continuous activation. Aiming to understand the extent of PD-1 expression in inflammatory arthritis beyond its involvement with T cells, we assess its presence on various circulating single cells.

Methods: Mass cytometry analysis of patients with active seropositive/seronegative rheumatoid (RA; n=9/8) and psoriatic (PsA; n=9) arthritis versus healthy controls (HC; n=13), re-evaluating patients after 3 months of anti-rheumatic treatment.

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Background: Lipoprotein(a) [Lp(a)] is a recognized as risk factor for atherosclerotic cardiovascular disease (ASCVD). However, its influence on clinical risk evaluations remains unclear.

Objective: This study aimed to determine whether Lp(a) improves CVD risk prediction among apparently healthy adults from the general population.

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