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Protein malnutrition impairs the immune control of Trichinella spiralis infection
- Source :
- CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- 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 (PD I and C I ) 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 PD I than in C I. Body weight was lower in PD I than in a non-infected protein-deficient diet. Eosinophils counts were lower in PD I than in C I. Total and specific antibodies were lower in PD I than C I. PD I had a reduced number of mast and goblet cells in the lungs and intestines compared with C I. The persistence of AW in the intestines and migrant larvae at the lungs was longer in PD I than in C I. . The AW fecundity index score was higher in PD I than in C I . Finally, PD I evidenced a higher muscular parasite burden than C I . 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. Fil: Vila, Cecilia Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina Fil: Saracino, María Priscila. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina Fil: Falduto, Guido Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina Fil: Calcagno, Marcela Adriana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina Fil: Venturiello, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina Fil: Pallaro, Anabel Nora. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Bromatología y Nutrición Experimental; Argentina Fil: Baldi, Pablo Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina
- Subjects :
- inorganic chemicals
0301 basic medicine
Endocrinology, Diabetes and Metabolism
Trichinella spiralis
Antibodies, Helminth
Physiology
TRICHINELLA SPIRALIS INFECTION
030209 endocrinology & metabolism
NUTRITIONAL PARAMETERS
Persistence (computer science)
PROTEIN DEFICIENCY
purl.org/becyt/ford/3.3 [https]
03 medical and health sciences
0302 clinical medicine
Immune system
Casein
Diet, Protein-Restricted
Animals
Weaning
Parasite hosting
Medicine
Intestinal Mucosa
Rats, Wistar
030109 nutrition & dietetics
Nutrition and Dietetics
biology
business.industry
Trichinellosis
purl.org/becyt/ford/3.1 [https]
biology.organism_classification
Fecundity
PARASITOLOGICAL PARAMETERS
Rats
nervous system diseases
body regions
biology.protein
purl.org/becyt/ford/3 [https]
Dietary Proteins
IMMUNOLOGICAL PARAMETERS
Antibody
business
Subjects
Details
- ISSN :
- 08999007
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Nutrition
- Accession number :
- edsair.doi.dedup.....2f4a02b1124eb55b6961e1d231b4746e
- Full Text :
- https://doi.org/10.1016/j.nut.2018.10.024