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      Ocular rosacea: a review Translated title: Rosácea ocular: revisão

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          Abstract

          Rosacea is a prevalent chronic cutaneous disorder with variable presentation and severity. Although considered a skin disease, rosacea may evolve the eyes in 58-72% of the patients, causing eyelid and ocular surface inflammation. About one third of the patients develop potentially sight-threatening corneal involvement. Untreated rosacea may cause varying degrees of ocular morbidity. The importance of early diagnosis and adequate treatment cannot be overemphasized. There is not yet a diagnostic test for rosacea. The diagnosis of ocular rosacea relies on observation of clinical features, which can be challenging in up to 90% of patients in whom accompanying roseatic skin changes may be subtle or inexistent. In this review, we describe the pathophysiologic mechanisms proposed in the literature, clinical features, diagnosis and management of ocular rosacea, as well as discuss the need for a diagnostic test for the disease.

          Translated abstract

          A rosácea é uma condição cutânea crônica, que possui apresentações clínicas variáveis. Apesar de considerada uma doença dermatológica, os olhos podem ser acometidos em 58-72% dos casos, causando inflamação palpebral e da superfície ocular. Aproximadamente um terço dos pacientes desenvolve acometimento corneano, podendo causar baixa visual significativa. Diagnóstico precoce e tratamento adequado são de extrema importância, devido à significativa morbidade ocular que a doença pode causar. Não há, até o momento, um teste diagnóstico para rosácea. O diagnóstico da rosácea ocular depende da observação das manifestações clínicas, o que pode ser bastante desafiador em até 90% dos pacientes, em que os achados cutâneos são discretos ou inexistentes. Nesta revisão, descrevemos os mecanismos fisiopatológicos propostos na literatura, manifestações clínicas, diagnóstico e tratamento da rosácea ocular, assim como abordamos a necessidade de um teste diagnóstico.

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          Most cited references162

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          Increased serine protease activity and cathelicidin promotes skin inflammation in rosacea.

          Acne rosacea is an inflammatory skin disease that affects 3% of the US population over 30 years of age and is characterized by erythema, papulopustules and telangiectasia. The etiology of this disorder is unknown, although symptoms are exacerbated by factors that trigger innate immune responses, such as the release of cathelicidin antimicrobial peptides. Here we show that individuals with rosacea express abnormally high levels of cathelicidin in their facial skin and that the proteolytically processed forms of cathelicidin peptides found in rosacea are different from those present in normal individuals. These cathelicidin peptides are a result of a post-translational processing abnormality associated with an increase in stratum corneum tryptic enzyme (SCTE) in the epidermis. In mice, injection of the cathelicidin peptides found in rosacea, addition of SCTE, and increasing protease activity by targeted deletion of the serine protease inhibitor gene Spink5 each increases inflammation in mouse skin. The role of cathelicidin in enabling SCTE-mediated inflammation is verified in mice with a targeted deletion of Camp, the gene encoding cathelicidin. These findings confirm the role of cathelicidin in skin inflammatory responses and suggest an explanation for the pathogenesis of rosacea by demonstrating that an exacerbated innate immune response can reproduce elements of this disease.
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            Standard classification of rosacea: Report of the National Rosacea Society Expert Committee on the Classification and Staging of Rosacea.

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              Rosacea: I. Etiology, pathogenesis, and subtype classification.

              Rosacea is one of the most common conditions dermatologists treat. Rosacea is most often characterized by transient or persistent central facial erythema, visible blood vessels, and often papules and pustules. Based on patterns of physical findings, rosacea can be classified into 4 broad subtypes: erythematotelangiectatic, papulopustular, phymatous, and ocular. The cause of rosacea remains somewhat of a mystery. Several hypotheses have been documented in the literature and include potential roles for vascular abnormalities, dermal matrix degeneration, environmental factors, and microorganisms such as Demodex folliculorum and Helicobacter pylori. This article reviews the current literature on rosacea with emphasis placed on the new classification system and the main pathogenic theories. Learning objective At the conclusion of this learning activity, participants should be acquainted with rosacea's defining characteristics, the new subtype classification system, and the main theories on pathogenesis.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                abo
                Arquivos Brasileiros de Oftalmologia
                Arq. Bras. Oftalmol.
                Conselho Brasileiro de Oftalmologia (São Paulo, SP, Brazil )
                0004-2749
                1678-2925
                October 2012
                : 75
                : 5
                : 363-369
                Affiliations
                [02] Davis CA orgnameUniversity of California orgdiv1Department of Ophthalmology USA
                [01] São Paulo SP orgnameUniversidade Federal de São Paulo orgdiv1Department of Ophthalmology Brazil
                Article
                S0004-27492012000500016
                10.1590/S0004-27492012000500016
                c2bcf96f-2de5-4e8c-b31a-57ae74e1c307

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 07 August 2012
                : 23 August 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 120, Pages: 7
                Product

                SciELO Brazil


                Rosacea,Acuidade visual,Doxiciclina,Rosácea,Oftalmopatias,Manifestações oculares,Visual acuity,Doxycycline,Eye diseases,Eye manifestations

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