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  • Title: Central beta-adrenergic receptors play an important role in the enhancing effect of voluntary exercise on learning and memory in rat.
    Author: Ebrahimi S, Rashidy-Pour A, Vafaei AA, Akhavan MM.
    Journal: Behav Brain Res; 2010 Mar 17; 208(1):189-93. PubMed ID: 19941907.
    Abstract:
    The beneficial effects of physical activity and exercise on brain functions such as improvement in learning and memory are well documented. The aim of this study was to examine the role of the beta-adrenergic system in voluntary exercise-induced enhancement of learning and memory in rat. In order to block the beta-adrenergic receptors, the animals were received propranolol (a beta-blocker), or nadolol (a peripherally acting beta-blocker) before each night of five consecutive nights of exercise. Then their learning and memory were tested on the water maze task using a two-trials-per-day for 5 consecutive days. A probe trial was performed 2 days after the last training day. Our results showed that propranolol, but not nadolol reversed the exercise-induced improvement in learning and memory in rat. Our findings indicate that central beta-adrenergic receptors play an important role in mediating the beneficial effects of voluntary exercise on learning and memory.
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