1. 1. Monoamine neurotransmitters (epinephrine, norepinephrine, dopamine, serotonin and some of their metabolites (DOPEG, MHPG, DOPAC, 5-HIAA) were measured by HPLC in extracts from telencephalon (TEL) and diencephalon-midbrain (DM) before, during and at the end of metamorphosis. 2. 2. During metamorphosis MHPG increased and 5-HIAA decreased in TEL and DM while DOPEG decreased only in DM. 3. 3. Monoamine levels were greater in the TEL and a larger increase in MHPG occurred there. 4. 4. Captivity without metamorphosis also caused a significant depression of 5-HIAA in TEL and depression of DOPEG, MHPG and DOPAC in DM.
|Number of pages||5|
|Journal||Comparative Biochemistry and Physiology -- Part A: Physiology|
|State||Published - Oct 1992|