Pesquisas e estudos científicos vêm demonstrando o quão importante é a alimentação na vida de um cão e no controle de algumas doenças. A dermatite alérgica alimentar, ou dermatite trofoalérgica, é um tipo de hipersensibilidade alimentar que acomete cães sem predisposição de raça, sexo ou idade. Normalmente causa prurido e incômodo no cão, como também afecções dermatológicas secundárias. O objetivo deste trabalho foi realizar um estudo sobre a dermatite alérgica alimentar em cães, sua etiologia, diagnósticos diferenciais, tratamentos e sinais clínicos. Para tanto foi feito uma revisão bibliográfica qualitativa sobre a dermatite alérgica. Neste trabalho elencou-se artigos e capítulos de livro sobre a temática em questão, sendo estes agrupados nos anos de 2011 a 2021. A casuística da doença entre cães é uma problemática que necessita de atenção, principalmente por ser uma das principais patologias que desencadeiam processos alérgicos na espécie canina.
To understand the mechanisms involved in immunological tolerance to skin-associated proteins, we have developed trangenic (Tg) mice that express a model self antigen, membrane-bound ABSTRACTS 125 FS01.3 Disperse (yes), orange (yes), 3 (no): what do we test in textile dye dermatitis?Para-phenylenediamine (PPD), an arylamine dye, is a strong allergen causing allergic contact dermatitis. Cytokines such as TNF-a and IL-1beta are key mediators in the initiation of this reaction. Both cytokines are predominantly produced by stimulated monocytes and macroghages. We investigated the responses of PPD and Bandrowski's base (BB), an autoxidation product of PPD in human monocytes. We isolated monocytes from healthy volunteers and incubated them with the allergens. TNF-a and IL-1beta mRNA expression and protein levels were estimated after 45 min, 2 h, 4 h and 24 h after allergen contact. IL-1beta and TNF-alpha were measured in cell culture supernatants by ELISA (n ¼ 7) and mRNA expression was determined by real-time RT-PCR. We found that PPD reduced TNF-a protein secretion by 20-69.9% (n ¼ 6). Further, IL-1beta levels were decreased by 44-98%. The same tendency was found studying IL-1beta and TNF-a mRNA steady state levels (n ¼ 3; 1 h incubation). These effects were substance-specific and not found for PPD derivatives nor for the autoxidation product BB. These findings suggest that PPD may specifically modify immune responses by directly infering with the cellular proinflammatory cytokine network.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.