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      Lipid Disturbances in Psoriasis: An Update

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          Abstract

          Psoriasis is a common disease with the population prevalence ranging from 2% to 3%. Its prevalence in the population is affected by genetic, environmental, viral, infectious, immunological, biochemical, endocrinological, and psychological factors, as well as alcohol and drug abuse. In the recent years, psoriasis has been recognised as a systemic disease associated with numerous multiorgan abnormalities and complications. Dyslipidemia is one of comorbidities in psoriatic patients. Lipid metabolism studies in psoriasis have been started at the beginning of the 20th century and are concentrated on skin surface lipids, stratum corneum lipids and epidermal phospholipids, serum lipids, dermal low-density lipoproteins in the psoriatic skin, lipid metabolism, oxidative stress and correlations between inflammatory parameters, lipid parameters and clinical symptoms of the disease. On the basis of the literature data, psoriasis can be described as an immunometabolic disease.

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          Role of cholesterol and lipid organization in disease.

          Frederick Maxfield, Ira Tabas (2005)
          Membrane lipids are essential for biological functions ranging from membrane trafficking to signal transduction. The composition of lipid membranes influences their organization and properties, so it is not surprising that disorders in lipid metabolism and transport have a role in human disease. Significant recent progress has enhanced our understanding of the molecular and cellular basis of lipid-associated disorders such as Tangier disease, Niemann-Pick disease type C and atherosclerosis. These insights have also led to improved understanding of normal physiology.
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            Prevalence of cardiovascular risk factors in patients with psoriasis.

            Andrea L. Neimann, Daniel B. Shin, Xingmei Wang … (2006)
            Previous studies suggest that patients hospitalized for psoriasis have an increased frequency of a variety of cardiovascular comorbidities. Limited population-based data exist on this association, and few studies have determined which factors are independently associated with psoriasis. We sought to determine whether the prevalence of the major cardiovascular risk factors was higher in mild and severe psoriasis than in patients without psoriasis. We conducted a population-based study in the United Kingdom using the General Practice Research Database. Patients were classified as having severe psoriasis if they received a code for psoriasis as well as systemic therapy. Patients were defined as having mild psoriasis if they ever received a psoriasis code but no systemic therapy. Control subjects were selected from the same practices and start dates as psoriasis patients. Patients were classified as having risk factors if they received codes for diabetes, hypertension, hyperlipidemia, obesity, or smoking. Analyses were performed by using conditional logistic regression, and adjustments were made considering age, gender, person-years, and all cardiovascular risk factors. We identified 127,706 patients with mild psoriasis and 3854 with severe psoriasis. Respective prevalence rates of risk factors in those with severe psoriasis, mild psoriasis, and in controls were as follows: diabetes (7.1%, 4.4%, 3.3%), hypertension (20%, 14.7%, 11.9%), hyperlipidemia (6%, 4.7%, 3.3%), obesity (20.7%, 15.8%, 13.2%), and smoking (30.1%, 28%, 21.3%). Patients with mild psoriasis had a higher adjusted odds of diabetes (odds ratio [OR], 1.13; 95% confidence interval [CI], 1.08-1.18]), hypertension (OR, 1.03; 95% CI, 1.01-1.06), hyperlipidemia (OR, 1.16; 95% CI, 1.12-1.21), obesity (OR, 1.27; 95% CI, 1.24-1.31), and smoking (OR, 1.31; 95% CI, 1.29-1.34) than controls. Patients with severe psoriasis had a higher adjusted odds of diabetes (OR, 1.62; 95% CI, 1.3-2.01), obesity (OR, 1.79; 95% CI, 1.55-2.05), and smoking (OR, 1.31; 95% CI, 1.17-1.47) than controls. Additionally, diabetes (OR, 1.39; 95% CI, 1.22-1.58) and obesity (OR, 1.47; 95% CI, 1.32-1.63) were more prevalent in those with severe psoriasis than with mild psoriasis. The study was cross-sectional and therefore the directionality of the associations could not be determined. Multiple cardiovascular risk factors are associated with psoriasis. Cardiovascular risk factors that are key components of the metabolic syndrome are more strongly associated with severe psoriasis than with mild psoriasis.
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              Incidence and clinical predictors of psoriatic arthritis in patients with psoriasis: a population-based study.

              Sherine E Gabriel, Murat Icen, F. Wilson … (2009)
              To determine the incidence and disease-specific predictors of clinically recognized psoriatic arthritis (PsA) in patients with psoriasis. We identified an incidence cohort of psoriasis subjects age >/=18 years diagnosed between January 1, 1970 and December 31, 1999 in a population-based setting. Psoriasis diagnoses were validated by confirmatory diagnosis in the medical record. Incident and clinically recognized PsA subjects were classified according to the Classification of Psoriatic Arthritis (CASPAR) criteria. Cox proportional hazards models were used to identify predictors of PsA within the psoriasis cohort. The psoriasis incidence cohort comprised 1,633 subjects. Of these, 40 were diagnosed with PsA concurrently with psoriasis and were excluded from analysis. The remaining 1,593 psoriasis subjects had a mean age of 43 years and 50% were men. Over 20,936 person-years of followup, 57 subjects were clinically recognized with new-onset PsA, with a cumulative incidence of 1.7% (95% confidence interval [95% CI] 1.0-2.3%), 3.1% (95% CI 2.2-4.1%), and 5.1% (95% CI 3.7-6.6%) at 5, 10, and 20 years following psoriasis incidence, respectively. Psoriasis features associated with higher risk of PsA were scalp lesions (hazard ratio [HR] 3.89, 95% CI 2.18-6.94), nail dystrophy (HR 2.93, 95% CI 1.68-5.12), and intergluteal/perianal lesions (HR 2.35, 95% CI 1.32-4.19). Calendar year was not associated with risk of PsA (P = 0.15), indicating that the likelihood of PsA in psoriasis subjects did not change over time. In this population-based study, <10% of patients with psoriasis developed clinically recognized PsA during a 30-year period. Psoriasis features associated with a higher likelihood of PsA were nail dystrophy, scalp lesions, and intergluteal/perianal psoriasis.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Mediators Inflamm
                Journal ID (publisher-id): MI
                Title: Mediators of Inflammation
                Publisher: Hindawi Publishing Corporation
                ISSN (Print): 0962-9351
                ISSN (Electronic): 1466-1861
                Publication date (Print): 2010
                Publication date (Electronic): 20 July 2010
                Volume: 2010
                Electronic Location Identifier: 535612
                Affiliations
                1Department of Dermatology, Venereology and Paediatric Dermatology, Medical University of Lublin, ul. Radziwillowska 13, 20-080 Lublin, Poland
                2Department of Dermatology, Venereology and Allergology, Wrocław Medical University and Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, ul. R. Weigla 12, 53-114 Wrocław, Poland
                Author notes
                *Jacek C. Szepietowski: jszepiet@ 123456derm.am.wroc.pl

                Academic Editor: Giuseppe Valacchi

                Article
                DOI: 10.1155/2010/535612
                PMC ID: 2914266
                PubMed ID: 20706605
                SO-VID: 49f82953-924d-4cef-9948-bf231d87ca79
                Copyright © Copyright © 2010 Aldona Pietrzak et al.
                License:

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 12 April 2010
                Date accepted : 10 June 2010
                Categories
                Subject: Review Article

                ScienceOpen disciplines: Immunology
                Data availability:
                ScienceOpen disciplines: Immunology

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