Abstract
A conditioned taste aversion (CTA) paradigm was used in the present study to investigate whether CTA produced by exercise could be attenuated by the 5-HT 3 receptor antagonist granisetron. Male Sprague–Dawley rats were randomly allocated to one of four groups ( Ns=6) and were exposed to salty (0.128 M sodium chloride) or sour (0.00138 M citric acid) solutions. Subjects were injected with either saline solution (1.0 ml, 0.9%) or granisetron (0.5 mg/kg, IP) and were exposed to 30 min of forced wheel running exercise (70 revolutions/30 min) 10 min after injection. Exercise induced CTA to both the salty (3.7 ml intake) and sour-flaroured (3.1 ml intake) solutions as compared with no exercise (intake 14.0 and 13.7 ml), and administration of granisetron significantly attenuated the exercise-induced CTA to the salty- and sour-flavoured solutions.
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