Pineal tryptophan, serotonin, serotonin-N-acetyltransferase (NAT), melatonin, 5-hydroxyindole acetic acid (5HIAA), norephinephrine and dopamine were measured in 5 castrated rabbits each at 11.00, 00.30 and 03.00 hours. The rabbits were housed in an L:D 14:10 (lights on 07.00 hours). Significant day:night variations were found in NAT, melatonin, dopamine and norepinephrine. These results were compared to data concerning rhythms of pineal constituents in other species.
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Pharmacology, Toxicology and Pharmaceutics(all)