Enhancement of Sprouting and Putative Regeneration of Central Noradrenergic Fibers by Morphine
- Harston, Craig T.
- Morrow, Anne
- Kostrzewa, Richard M.
DOIAbstract
Treatment of newborn rats with 6-hydroxydopa (6-OHDOPA, 60 μg/g IP) increased the levels of norepinephrine in the adult cerebellum and hindbrain. Concurrent treatment with morphine sulfate (20 μg/g IP) potentiated the response to 6-OHDOPA in the cerebellum and pons-medulla. In addition, increased noradrenergic neurite density in 4 week cerebellar cortex (as observed with histofluorescent staining by glyoxylic acid) suggests that neonatal morphine increased the sprouting of noradrenergic neurons in the 6-OHDOPA treated rats
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