Europe PMC

Objective Psoriatic arthritis (PsA) guidelines aim to provide consistent, evidence-based recommendations. Multiple regional guidelines exist, often based on similar evidence but with different methodologies and contexts. Our aim was to compare recent PsA treatment guidelines from the American College of Rheumatology, Group for Research and Assessment of Psoriasis and Psoriatic Arthritis, European Alliance of Associations for Rheumatology, and Pan American League of Associations for Rheumatology,

Introduction Difficult-to-treat psoriatic arthritis (D2T-PsA) is increasingly recognized as a complex clinical entity characterized by persistent disease burden despite multiple targeted therapies. Its identification is essential to improve patient outcomes and to guide the development of new therapeutic strategies.Areas covered In this perspective article, we discuss the evolving concept of D2T-PsA, including its epidemiology, clinical characterization, and underlying pathophysiological mechani

Background The clinical definition of moderate psoriasis is debated, affecting treatment eligibility and patient outcomes.Objective A panel of Italian dermatologists aimed to propose practical criteria to define moderate psoriasis, based on a comprehensive literature review and clinical experience.Methods The panel reviewed publications between 2016 and 2024 focusing on key severity scores, including the Psoriasis Area and Severity Index (PASI), Body Surface Area (BSA), Dermatology Life Quality

Context Evidence regarding the relationship between serum trace element levels and immune-mediated inflammatory skin diseases (IMSDs) is inconsistent.Objective In this systematic review and meta-analysis we aimed to evaluate the association between selected serum trace element levels (zinc [Zn], copper [Cu], iron [Fe], selenium [Se], and calcium [Ca]) and IMSDs (psoriasis, vitiligo, atopic dermatitis [AD], alopecia areata [AA], hidradenitis suppurativa, and bullous diseases).Data sources We cond

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Abstract Psoriasis, a chronic and recurring disease, is closely associated with lipid metabolism. This study aims to identify differentially expressed genes (DEGs) and their functional pathways associated with psoriasis to uncover new therapeutic targets. We leveraged Gene Expression Omnibus (GEO) datasets for DEGs analysis in psoriasis. Gene Set Enrichment Analysis (GSEA), Gene Set Variation Analysis (GSVA), Weighted Gene Co-expression Network Analysis (WGCNA), and single-sample GSEA (ssGSEA)

Background Despite increased understanding of psoriasis pathogenesis, molecular classification of clinical phenotypes and disease severity is poorly defined. Knowledge gaps include whether molecular endotypes of psoriasis underlie distinct clinical phenotypes and the positive and negative molecular regulators of disease severity across tissue compartments.Methods We performed comprehensive RNA sequencing of skin and blood (n = 718) from prospectively-recruited, deeply-phenotyped discovery and re

Justification and objectives: Topical therapy is vital in the management of psoriasis. In recent years there have been multiple advances and changes in the management of psoriatic patients that justify a review and update of the use of topical therapy. Experts from the Spanish Psoriasis Working Group (GPS) of the Spanish Academy of Dermatology Venereology (AEDV) have developed a set of recommendations for the treatment of psoriasis based on the best available evidence and experts' opinion. Metho

Secukinumab, a fully human monoclonal antibody that antagonizes interleukin-17A (IL-17A), has proven efficacious in the management of moderate to severe plaque psoriasis. Secukinumab has established itself as an effective treatment for plaque psoriasis, offering rapid and sustained symptom improvement. However, more research is warranted to assess its efficacy and safety in elderly patients, where clinical data is currently lacking. We describe an 84-year-old female presented with stable angina

Generalized pustular psoriasis (GPP) is a potentially life-threatening infrequent immune-mediated disease characterized by rapid-onset of erythematous plaques, sterile pustules, and systemic inflammation. Spesolimab, a monoclonal antibody targeting the interleukin-36 receptor, is a novel treatment for GPP. However, GPP's low incidence and limited evidence represents a challenge in determining its real-world efficacy. This review aims to explore the clinical use of spesolimab in a real-world sett

Keratinocyte hyperproliferation and excessive inflammatory responses are associated with psoriasis pathogenesis. Trifolirhizin has anti-inflammatory and anti-proliferation effects. The purpose of the study was to investigate the role of trifolirhizin in psoriasis-like skin lesions and its molecular mechanism. Imiquimod-induced psoriasis-like mouse models were treated with trifolirhizin. Skin lesions and inflammatory factors were assessed. In vitro, human HaCaT keratinocytes were stimulated by a

Background Genetic susceptibility to psoriasis involves multiple loci, including TYK2 (Tyrosine Kinase 2), which is associated with various autoimmune diseases. However, its specific role and mechanisms in psoriasis remain unclear. This study aimed to identify psoriasis-associated proteins using Summary-based Mendelian Randomization (SMR) and to explore their regulatory mechanisms.Methods SMR analysis integrating pQTL data was conducted to identify proteins linked to psoriasis, revealing ICAM1 (

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Introduction Research findings show a substantial correlation between Crohn's disease and psoriasis. However, the exact cause or pathogenesis of the concurrent manifestations of these two conditions in the same individuals remains uncertain. This research aimed to scrutinize the important molecules and mechanisms responsible for the concomitance of Crohn's disease and Psoriasis by using quantitative bioinformatics utilizing a publicly available RNA sequencing repository.Methods The database Gene

Cumulative life course impairment (CLCI) is the irreversible harm resulting from the chronic burden of disease, such as psoriasis. This cumulative impact encompasses physical, psychological, social, and emotional challenges that can significantly alter the life trajectory of a patient with psoriasis. The risk of CLCI and the impact of living with psoriasis are exacerbated when the disease is inadequately managed. Even with improvements in skin symptoms, psychological factors, such as anxiety abo

Enthesitis represents a hallmark feature and central pathological process in psoriatic arthritis and has been proposed as a potential early indicator in patients with psoriasis prior to the onset of clinically apparent psoriatic arthritis. Given the risks associated with delayed diagnosis, there is growing interest in identifying at-risk patients early to enable timely interventions and personalized treatment approaches. In clinical practice, dermatologists are often the first to encounter these

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Objective To describe the psoriatic phenotype associated with psoriatic arthritis (PsA) METHODS: Based on the previously published PURE 4 validation study, this work aims to describe the sociodemographic and clinical characteristics, as well as the PURE-4 questionnaire outcomes, of psoriasis patients who completed the study. It compares those diagnosed with PsA during the study to those with only psoriasis . The variables compared were age, gender, time since diagnosis of psoriasis, psoriasis lo

Objectives The Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) is widely used to assess axial disease activity in psoriatic arthritis (PsA). However, 5 of its 6 questions reflect general disease activity rather than axial-specific symptoms. We aimed to evaluate the performance of BASDAI and its back pain subscore in assessing axial disease in PsA.Methods Patients with BASDAI scores were identified from a longitudinal PsA cohort initiated in 1978. Axial disease was defined radiographi

Objective To describe the psoriatic phenotype associated with psoriatic arthritis (PsA).Methods Based on the previously published 4-item Psoriatic Arthritis Uncluttered Screening Evaluation (PURE-4) validation study, this work aims to describe the sociodemographic and clinical characteristics, as well as the PURE-4 questionnaire outcomes, of patients with psoriasis (PsO) who completed the study. It compares those diagnosed with PsA during the study to those with PsO only. The variables compared

Background Psoriasis is a chronic disease with a prevalence of 3% in the general population. The high prevalence of psoriasis has prompted the study of its comorbidities in recent decades. However, no studies have ever analyzed comorbidity patterns including all chronic diseases in psoriatic patients.Objectives To identify comorbidity patterns in psoriatic patients using network analysis and describe them from a clinical point of view.Methods We conducted an observational and retrospective study

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Psoriasis is a chronic, multifactorial, inflammatory skin disease, increasingly recognized as a systemic disorder influenced by the gut-skin axis, which is a dynamic bidirectional communication between intestinal microbiome and cutaneous immune response. This narrative review explores the understanding of the gut-skin axis with the latest evidence on how gut dysbiosis occurs in psoriasis, characterized by reduced microbial diversity and its shifts, and how it contributes to pathogenesis and exac

Purpose Psoriasis is frequently associated with dyslipidemia, yet the role of specific unsaturated fatty acid (UFA) metabolic pathways in disease pathogenesis and treatment response remains poorly understood. This study aimed to characterize the landscape of UFA metabolic reprogramming in psoriasis and evaluate its clinical relevance for predicting response to biologic therapy.Patients and methods We performed an integrated multi-omics analysis incorporating transcriptomic data from human psoria