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The rotarod time of dexmedetomidine-injected rats. Rotarod time was observed before (Pre) and after dexmedetomidine or saline injection. Rotarod time was not decreased by injection of normal saline (NS) and 12.5, 25, and 50 µg/kg of dexmedetomidine. Only 100 µg/kg of dexmedetomidine decreased rotarod time at from 30 to 90 min. Results are presented as mean ± standard error of mean (n = 6 in saline group, n = 7 per each dexmedetomidine group) (*P < 0.001 vs NS).
