
Fig. 5. Changes in monoamine levels in blood of the hibernating lizard A.
stellio stellio. Values are means ± S.E.M., N=10
determinations on separate preparations from different animals. Asterisks
indicate values that are significantly different from the control values.
5-HT, serotonin; DA, dopamine; NE, norepinephrine; E, epinephrine.