Abstract
The present study investigated the effects of food restriction (FR) on memory and the expression of synapsin I in the brain of young mice. The results showed that 20% FR did not retard the body weight gain of mice, while the 60% and 80% FR reduced the mice's body weight. The memory after 24 hr of learning was not changed by FR, whereas long-term memory was improved significantly in 20% FR mice. In addition, 60% and 80% FR did not impair the mice's memory. The transcriptional expression of synapsin I in mice brain was up-regulated by 20% FR, and down-regulated by 60% and 80% FR.
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