Abstract
1. 1. A daily rhythm in norepinephrine content was demonstrated in the brain-stem, diencephalon, and cerebral cortex of hamster (Mesocricetus auratus)- exposed to a 12 : 12-hour light-dark lighting regime for a month or longer and then sacrificed at intervals over a 24-hour period. 2. 2. The rhythms in brain-stem and cerebral cortex were reproducible, with the peak in norepinephrine content in each area occurring during the late light phase. 3. 3. The norepinephrine rhythm in the brain-stem was demonstrated when different methods for norepinephrine extraction were utilized.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 47-52 |
| Number of pages | 6 |
| Journal | Comparative and General Pharmacology |
| Volume | 4 |
| Issue number | 13 |
| DOIs | |
| State | Published - Mar 1973 |
Keywords
- brain regions
- Daily rhythm
- hamster
- lighting regime
- Mesocricetus auratus
- norepinephrine content
ASJC Scopus subject areas
- Medicine(all)