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Histopathological and immunohistochemical aspects of American cutaneous leishmaniasis before and after different treatments* / Aspectos histopatológicos e imuno-histoquímicos da leishmaniose tegumentar americana antes e depois de diferentes tratamentos
Anais Brasileiros de Dermatologia; Viana, Agostinho Gonçalves; Mayrink, Wilson; Fraga, Carlos Alberto de Carvalho; Silva, Luciana Maria; Domingos, Patrícia Luciana Batista; Bonan, Paulo Rogério Ferreti; Paula, Alfredo Maurício Batista de; Botelho, Ana Cristina de Carvalho.
Affiliation
  • Viana, Agostinho Gonçalves; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Mayrink, Wilson; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Fraga, Carlos Alberto de Carvalho; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Silva, Luciana Maria; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Domingos, Patrícia Luciana Batista; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Bonan, Paulo Rogério Ferreti; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Paula, Alfredo Maurício Batista de; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
  • Botelho, Ana Cristina de Carvalho; Graduation â€" Master Candidate in Health Sciences by the Universidade Estadual de Montes Claros(UNIMONTES). Montes Claros. BR
An. bras. dermatol ; An. bras. dermatol;88(1): 32-40, fev. 2013. tab, graf
Article in En | LILACS | ID: lil-667938
Responsible library: BR1.1
ABSTRACT
<h2>BACKGROUND:</h2> The histopathology and immune responses of the healing process of leishmaniasis are still poorly studied. <h2>OBJECTIVES:</h2> This study aimed to examine the histopathological and immunological aspects of lesions of patients with cutaneous leishmaniasis before and after different therapeutic methods. <h2>METHODS:</h2> We studied 23 individuals grouped according to the treatments Glucantime, Glucantime + Leishvacin and Glucantime + Leishvacin associated with Bacillus Calmette-Guerin. For analysis of the histopathological changes present in the dermis and epidermis, histological sections were stained with hematoxylin and eosin. The samples were immunostained before and after treatment to analyze the expression of interferon (IFN)-γ, interleukin (IL) 12, IL-10 and IL-4. <h2>RESULTS:</h2> Before treatment the presence of intense infiltrates of mononuclear cells was noticed and after treatment, even with a diagnosis of clinical cure, the subjects still showed a moderate inflammatory process. In the immunohistochemical analyses, we noticed a difference between the cytokines, with increased expression of cytokines IFN-γ and IL-12 compared to IL 10 and IL-4, both before and after treatment and, comparatively, the difference in this expression was more intense before treatment. However, the cytokine expression analyzed by treatment group showed no statistically significant difference. <h2>CONCLUSION:</h2> We conclude that a clinical cure does not always coincide with the histopathological ...
RESUMO
FUNDAMENTOS A histopatologia e as respostas imunológicas do processo de cura da leishmaniose são ainda pouco estudadas. <h2>OBJETIVOS:</h2> Este estudo teve como objetivo avaliar os aspectos histopatológicos e imunológicos das lesões de pacientes com leishmaniose tegumentar, antes e após diferentes métodos terapêuticos. <h2>MÉTODOS:</h2> Foram estudados 23 indivíduos agrupados de acordo com os tratamentos Glucantime, Glucantime + Leishvacin e Glucantime + Leishvacin associado com Bacilo Calmette-Guerin. Para a análise das alterações histopatológicas presentes na derme e epiderme, cortes histológicos foram corados com hematoxilina e eosina. Para avaliar a expressão de interferon (IFN)-γ, interleucina (IL) 12, IL-10 e IL-4 foi utilizada a técnica de imuno-histoquímica antes e após o tratamento. <h2>RESULTADOS:</h2> Antes do tratamento houve um intenso infiltrado de células mononucleares, após o tratamento, mesmo com um diagnóstico de cura clínica, apresentou-se ainda um moderado processo inflamatório. Na análise imuno-histoquímica, notamos uma diferença entre as citocinas, com expressão aumentada de citocinas IFN-γ e IL-12 em comparação com IL-10 e IL-4 tanto antes quanto depois do tratamento, e comparativamente, a diferença nesta expressão mostrou-se mais intensa antes do tratamento. No entanto, a expressão das citocinas analisadas por grupo de tratamento não mostraram diferenças ...
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Full text: 1 Index: LILACS Main subject: Leishmaniasis / Cytokines / Immunotherapy, Active / Antiprotozoal Agents Type of study: Observational_studies / Risk_factors_studies Limits: Adolescent / Adult / Aged / Child / Female / Humans / Male Language: En Journal: An. bras. dermatol Journal subject: DERMATOLOGIA Year: 2013 Type: Article

Full text: 1 Index: LILACS Main subject: Leishmaniasis / Cytokines / Immunotherapy, Active / Antiprotozoal Agents Type of study: Observational_studies / Risk_factors_studies Limits: Adolescent / Adult / Aged / Child / Female / Humans / Male Language: En Journal: An. bras. dermatol Journal subject: DERMATOLOGIA Year: 2013 Type: Article