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      Lesiones vesiculares, no siempre son varicela Translated title: Bladders, not always varicela

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          Abstract

          Resumen El impétigo ampolloso o bulloso es una enfermedad infectocontagiosa de la piel, causada por Staphylococcus aureus y mediada por toxina. Se caracteriza por la aparición de ampollas flácidas sobre lesiones vesiculares iniciales. Es importante el diagnóstico diferencial en estadios iniciales con otras patologías que cursan con lesiones vesiculosas, como la varicela. La elección del tratamiento se basa en la extensión, localización y profundidad de las lesiones, utilizando siempre antibioterapia contra S. aureus y comprobando la sensibilidad antibiótica debido a la creciente prevalencia de S. aureus resistente a la meticilina (SARM).

          Translated abstract

          Abstract Bullous impetigo is an infectious-contagious skin disease toxin-mediated, caused by Staphylococcus aureus. It's characterized by the appearance of flaccid blisters on initial vesicular lesions. It's important the differential diagnosis with other diseases involving vesicular lesions, such as chickenpox in early stages. The choice of treatment is based on the extent, location and depth of the lesions, always using antibiotic therapy against S. aureus and checking antibiotic sensitivity due to the increasing prevalence of MRSA (methicillin resistant S. aureus).

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          Most cited references10

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          Practice guidelines for the diagnosis and management of skin and soft tissue infections: 2014 update by the infectious diseases society of America.

          A panel of national experts was convened by the Infectious Diseases Society of America (IDSA) to update the 2005 guidelines for the treatment of skin and soft tissue infections (SSTIs). The panel's recommendations were developed to be concordant with the recently published IDSA guidelines for the treatment of methicillin-resistant Staphylococcus aureus infections. The focus of this guideline is the diagnosis and appropriate treatment of diverse SSTIs ranging from minor superficial infections to life-threatening infections such as necrotizing fasciitis. In addition, because of an increasing number of immunocompromised hosts worldwide, the guideline addresses the wide array of SSTIs that occur in this population. These guidelines emphasize the importance of clinical skills in promptly diagnosing SSTIs, identifying the pathogen, and administering effective treatments in a timely fashion. © The Author 2014. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.
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            Toxin in bullous impetigo and staphylococcal scalded-skin syndrome targets desmoglein 1.

            Exfoliative toxin A, produced by Staphylococcus aureus, causes blisters in bullous impetigo and its more generalized form, staphylococcal scalded-skin syndrome. The toxin shows exquisite specificity in causing loss of cell adhesion only in the superficial epidermis. Although exfoliative toxin A has the structure of a serine protease, a target protein has not been identified. Desmoglein (Dsg) 1, a desmosomal cadherin that mediates cell-cell adhesion, may be the target of exfoliative toxin A, because it is the target of autoantibodies in pemphigus foliaceus, in which blisters form with identical tissue specificity and histology. We show here that exfoliative toxin A cleaved mouse and human Dsg1, but not closely related cadherins such as Dsg3. We demonstrate this specific cleavage in cell culture, in neonatal mouse skin and with recombinant Dsg1, and conclude that Dsg1 is the specific receptor for exfoliative toxin A cleavage. This unique proteolytic attack on the desmosome causes a blister just below the stratum corneum, which forms the epidermal barrier, presumably allowing the bacteria in bullous impetigo to proliferate and spread beneath this barrier.
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              Common Community-acquired Bacterial Skin and Soft-tissue Infections in Children: an Intersociety Consensus on Impetigo, Abscess, and Cellulitis Treatment

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                Author and article information

                Journal
                pap
                Pediatría Atención Primaria
                Rev Pediatr Aten Primaria
                Asociación Española de Pediatría de Atención Primaria (Madrid, Madrid, Spain )
                1139-7632
                December 2021
                : 23
                : 92
                : 391-395
                Affiliations
                [2] Játiva Valencia orgnameHospital Lluís Alcanyís orgdiv1Servicio de Pediatría España
                [1] Játiva Valencia orgnameHospital Lluís Alcanyís orgdiv1Servicio de Pediatría España
                Article
                S1139-76322021000400007 S1139-7632(21)02309200007
                b3269b7e-9c00-4ba5-93db-ccd8bfa26ffb

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

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                Figures: 0, Tables: 0, Equations: 0, References: 10, Pages: 5
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                SciELO Spain

                Categories
                Notas Clínicas

                Blisters,Staphylococcus aureus,Impétigo contagioso,Ampollas,Contagious impetigo

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