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Corticosteroid effect upon intestinal and hepatic interleukin profile in a gastroschisis rat model / Efeito do corticoesteróide sobre o perfil das interleucinas intestinais e hepáticas no modelo de gastrosquise em ratos
Gonçalves, Frances Lilian Lanhellas; Bittencourt, Daniel Guimarães; Velloso, Lício Augusto; Schmidt, Augusto Frederico; Gallindo, Rodrigo Melo; Sbragia, Lourenço.
  • Gonçalves, Frances Lilian Lanhellas; University of Sao Paulo. School of Medicine of Ribeirao Preto. Department of Surgery and Anatomy. Division of Pediatric Surgery. Ribeirao Preto. BR
  • Bittencourt, Daniel Guimarães; University of Sao Paulo. School of Medicine of Ribeirao Preto. Department of Surgery and Anatomy. Division of Pediatric Surgery. Ribeirao Preto. BR
  • Velloso, Lício Augusto; University of Sao Paulo. School of Medicine of Ribeirao Preto. Department of Surgery and Anatomy. Division of Pediatric Surgery. Ribeirao Preto. BR
  • Schmidt, Augusto Frederico; University of Sao Paulo. School of Medicine of Ribeirao Preto. Department of Surgery and Anatomy. Division of Pediatric Surgery. Ribeirao Preto. BR
  • Gallindo, Rodrigo Melo; University of Sao Paulo. School of Medicine of Ribeirao Preto. Department of Surgery and Anatomy. Division of Pediatric Surgery. Ribeirao Preto. BR
  • Sbragia, Lourenço; University of Sao Paulo. School of Medicine of Ribeirao Preto. Department of Surgery and Anatomy. Division of Pediatric Surgery. Ribeirao Preto. BR
Acta cir. bras ; 28(supl.1): 8-12, 2013. tab
Article in English | LILACS | ID: lil-663885
ABSTRACT

PURPOSE:

To evaluate the effect of corticosteroids on intestinal and liver interleukin profile in an experimental model of gastroschisis in fetal rats.

METHODS:

Sprague-Dawley rats at 19.5 days of gestation had its fetuses operated for the creation of gastroschisis. Two groups of fetuses were studied with and without maternal administration of dexamethasone. Each group was composed of fetuses who underwent gastroschisis (G), control fetuses without manipulation (C) and sham fetuses (S). A dosage of the following interleukins was carried out in fetal intestinal and liver tissues IL-1, IL-6, IL-10, tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ). The differences between the groups and subgroups were tested by ANOVA with Tukey post-test, with significant values of p<0.05.

RESULTS:

Dexamethasone led to an increase in intestinal and liver IL-6 (p<0.05) and a decrease in intestinal TNF-α (p<0.001) in fetuses with gastroschisis.

CONCLUSION:

Corticosteroids had an effect on the intestinal interleukin profile and a small effect on the liver interleukin profile due to immunological immaturity of the fetus, and also of fetuses with gastroschisis. The steroid action may not be exclusively anti-inflammatory, but also pro-inflammatory, varying with time of pregnancy.
RESUMO

OBJETIVO:

Avaliar a ação do corticosteroide no perfil de interleucinas intestinais e hepáticas no modelo experimental de gastrosquise em fetos de ratos.

MÉTODOS:

Ratas Sprague-Dawley com 19,5 dias de gestação tiveram fetos operados para criação de gastrosquise. Dois grupos de fetos foram estudados com e sem administração materna de dexametasona. Cada grupo foi composto por fetos submetidos a gastrosquise (G), fetos controles sem manipulação (C) e fetos sham (S). Realizou-se a dosagem das seguintes interleucinas no tecido intestinal e hepático fetal IL-1, IL-6, IL-10, fator de necrose tumoral-alfa (TNF-α) e interferon-gama (IFN-γ). As diferenças entre os grupos e subgrupos foram testadas pelo teste de ANOVA com pós-teste de Tukey, com valores significativos de p<0,05.

RESULTADOS:

A dexametasona levou a um aumento da IL-6 intestinal e hepática (p<0,05) e a uma diminuição do TNF-α intestinal (p<0,001) em fetos com gastrosquise.

CONCLUSÃO:

O corticosteróide apresentou efeito sobre o perfil de IL intestinal e pouco na hepática, devido a imaturidade imunológica dos fetos e também dos fetos com gastrosquise a ação do esteróide pode não ser exclusivamente anti-inflamatória, mas também pró inflamatória.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Dexamethasone / Cytokines / Gastroschisis / Glucocorticoids / Intestines / Liver Type of study: Prognostic study Limits: Animals / Pregnancy Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2013 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: University of Sao Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Dexamethasone / Cytokines / Gastroschisis / Glucocorticoids / Intestines / Liver Type of study: Prognostic study Limits: Animals / Pregnancy Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2013 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: University of Sao Paulo/BR