Impacto de la dieta sobre la inducción de infección con quistes de Giardia lamblia en ratas Sprague-Dawley / Impact of diet on the induction of infection with Giardia lamblia cysts in Sprague-Dawley rats
Salud pública Méx
; 44(4): 315-322, jul.-aug. 2002.
Article
em Es
| LILACS
| ID: lil-331710
Biblioteca responsável:
MX1.1
RESUMEN
OBJECTIVE:
To assess the effect of malnutrition on the development of giardiasis in Sprague-Dawley rats, using different inoculum sizes of Giardia lamblia cysts. MATERIAL ANDMETHODS:
An experimental study was conducted between 1995 and 1999 at Centro de Investigación, Alimentación y Desarrollo (Center for Research, Food, and Development), in Hermosillo, Sonora, Mexico. The study population consisted of two groups of six to eight experimental units that were fed two different diets and inoculated five different concentrations of Giardia lamblia cysts. Data were collected on excretion of cysts, weight gain, food intake, bowel contents, and macro and microscopic lesions in the intestinal mucosa. Statistical analysis consisted of analysis of variance and residuals.RESULTS:
Animals fed with a diet meeting nutritional requirements required an infecting inoculum of 60 cysts, while malnourished rats required only six cysts to develop mucosal lesions.CONCLUSIONS:
Weight gain monitored during ten days was not a good indicator of Giardia lamblia infection. Infection depended on cyst inoculum size as well as on the nutritional status of the tested animals.
Texto completo:
1
Índice:
LILACS
Assunto principal:
Deficiência de Proteína
/
Giardíase
/
Giardia lamblia
/
Dieta
Limite:
Animals
Idioma:
Es
Revista:
Salud pública Méx
Assunto da revista:
SAUDE PUBLICA
Ano de publicação:
2002
Tipo de documento:
Article