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Animal Bioresource in Japan

.: Home > Animal Bioresource in Japan > 2014 > Volume 63 Number 1 > Kimie Niimi, Eiki Takahashi

Characterization of Senescence-Accelerated Mouse Prone 6 (SAMP6) as an Animal Model for Brain Research

Kimie Niimi, Eiki Takahashi
Support Unit for Animal Resources Development, Research Resources Center, RIKEN Brain Science Institute, 2–1 Hirosawa, Wako, Saitama 351-0198, Japan
Abstract :

The senescence-accelerated mouse (SAM) was developed by selective breeding of the AKR/J strain, based on a graded score for senescence, which led to the development of both senescence-accelerated prone (SAMP), and senescence-accelerated resistant (SAMR) strains. Among the SAMP strains, SAMP6 is well characterized as a model of senile osteoporosis, but its brain and neuronal functions have not been well studied. We therefore decided to characterize the central nervous system of SAMP6, in combination with different behavioral tests and analysis of its biochemical and pharmacological properties. Multiple behavioral tests revealed higher motor activity, reduced anxiety, anti-depressant activity, motor coordination deficits, and enhanced learning and memory in SAMP6 compared with SAMR1. Biochemical and pharmacological analyses revealed several alterations in the dopamine and serotonin systems, and in long-term potentiation (LTP)-related molecules. In this review, we discuss the possibility of using SAMP6 as a model of brain function.

Keywords :
behavioral analysis, dopamine, NMDA receptor, SAMP6, serotonin

Date Deposited : 06 Apr 2015 13:07

Last Modified : 06 Apr 2015 13:07

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Volume 63, Number 1, - 2014

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