Long-term memory for aversive training is impaired in Idua−/− mice, a genetic model of mucopolysaccharidosis type I

Autor: Gustavo Kellermann Reolon, Melissa Camassola, Rafael Roesler, Nance Beyer Nardi, Tatiana Luft, João Antonio Pêgas Henriques, Luisa Maria Gomes de Macedo Braga
Rok vydání: 2006
Předmět:
Zdroj: Brain Research. 1076:225-230
ISSN: 0006-8993
DOI: 10.1016/j.brainres.2006.01.008
Popis: Mucopolysaccharidosis type I (MPS I) is a lysosomal storage disease that leads to neurodegeneration and neurological deficits, among other pathological and clinical consequences. The aim of the present study was to evaluate neurobehavioral parameters in a genetic mouse model of mucopolysaccharidosis type I (MPS I). During exploration of an open field, adult MPS I ( Idua −/− ) mice showed normal locomotion and anxiety but reduced number of rearings. Idua −/− mice performed normally in a novel object recognition memory task and showed normal short-term retention of inhibitory avoidance training. By contrast, long-term retention of inhibitory avoidance was impaired in Idua −/− mice. The deficit in inhibitory avoidance memory could not be attributed to reduced footshock reactivity. The results indicate that Idua −/− mice present deficits in long-term memory for aversive training and reduced exploratory behavior.
Databáze: OpenAIRE