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Protein malnutrition impairs the immune control of Trichinella spiralis infection.
Vila, Cecilia C; Saracino, María P; Falduto, Guido H; Calcagno, Marcela A; Venturiello, Stella M; Pallaro, Anabel N; Baldi, Pablo C.
Afiliação
  • Vila CC; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, IDEHU-CONICET, Ciudad de Buenos Aires, Argentina.
  • Saracino MP; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, IDEHU-CONICET, Ciudad de Buenos Aires, Argentina.
  • Falduto GH; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, IDEHU-CONICET, Ciudad de Buenos Aires, Argentina.
  • Calcagno MA; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, IDEHU-CONICET, Ciudad de Buenos Aires, Argentina.
  • Venturiello SM; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, IDEHU-CONICET, Ciudad de Buenos Aires, Argentina.
  • Pallaro AN; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Sanidad, Nutrición, Bromatología y Toxicología, Cátedra de Nutrición, Ciudad de Buenos Aires, Argentina.
  • Baldi PC; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, IDEHU-CONICET, Ciudad de Buenos Aires, Argentina. Electronic address: pablobal@ffyb.uba.ar.
Nutrition ; 60: 161-169, 2019 04.
Article em En | MEDLINE | ID: mdl-30599460
OBJECTIVES: We aimed to analyze the effect of a protein-deficient diet on mucosal and systemic immunity during a Trichinella spiralis infection. METHODS: Two groups of weaning Wistar rats received a protein-deficient diet (6.5% casein) and the other two groups received a control diet (20% casein). After 10 d, one group of each diet was infected (PDI and CI) with muscle larvae (infecting stage). Food intake and body weight were assessed over time. Blood eosinophils counts, antibodies in serum, and tissue extracts were assessed at different days postinfection. Histologic studies were done in the lungs and intestines, and adult worm (AW) fecundity index score and muscle parasite burden were determined. RESULTS: Food and protein intake were lower in PDI than in CI. Body weight was lower in PDI than in a non-infected protein-deficient diet. Eosinophils counts were lower in PDI than in CI. Total and specific antibodies were lower in PDI than CI. PDI had a reduced number of mast and goblet cells in the lungs and intestines compared with CI. The persistence of AW in the intestines and migrant larvae at the lungs was longer in PDI than in CI.. The AW fecundity index score was higher in PDI than in CI. Finally, PDI evidenced a higher muscular parasite burden than CI. CONCLUSIONS: Protein deficiency affects the mucosal and systemic immune response to Trichinella spiralis and delays the expulsion and increases the fecundity index score of AW, which leads to a higher parasite burden in the muscles.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Triquinelose / Anticorpos Anti-Helmínticos / Proteínas Alimentares / Trichinella spiralis / Dieta com Restrição de Proteínas Limite: Animals Idioma: En Revista: Nutrition Assunto da revista: CIENCIAS DA NUTRICAO Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Argentina País de publicação: Estados Unidos
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Triquinelose / Anticorpos Anti-Helmínticos / Proteínas Alimentares / Trichinella spiralis / Dieta com Restrição de Proteínas Limite: Animals Idioma: En Revista: Nutrition Assunto da revista: CIENCIAS DA NUTRICAO Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Argentina País de publicação: Estados Unidos