Chemically induced model of hypermethioninemia in rats.
J Neurosci Methods
; 160(1): 1-4, 2007 Feb 15.
Article
en En
| MEDLINE
| ID: mdl-16978704
ABSTRACT
In the present study, we developed a chronic chemically induced model of hypermethioninemia in rats. We induced elevated concentrations of methionine in the blood by injecting subcutaneously methionine (1.34-2.68 micromol/g of body weight) to developing animals of various ages. Brain methionine concentrations were approximately 1.25 micromol/g wet tissue ( approximately 1.0mM). We then injected the same doses of methionine to young rats twice a day at 8h intervals from the 6(th) to the 28(th) postpartum day. Controls received saline in the same volumes. The body, brain and hippocampus of rats were weighed after treatment and showed that hypermethioninemic animals had no differences in these parameters, when compared to the control group, suggesting that methionine did not cause malnutrition in the rats. Considering that experimental animal models are useful to understand the pathophysiology of human disease, the present model of hypermethioninemia may contribute to the investigation of the mechanisms of brain damage caused by high tissue methionine levels.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Modelos Animales de Enfermedad
/
Homocistinuria
/
Metionina
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
J Neurosci Methods
Año:
2007
Tipo del documento:
Article
País de afiliación:
Brasil