Stimulation of ornithine decarboxylase by histamine or norepinephrine in brain regions of the developing rat: evidence for biogenic amines as trophic agents in neonatal brain development.

Published

Journal Article

Ornithine decarboxylase (ODC) initiates the synthesis of polyamines which play key roles in regulation of cellular development. Intracisternal administration of histamine or norepinephrine to developing rats produced age-dependent stimulation of ODC in brain. In cerebral cortex and ponsmedulla, stimulation by norepinephrine was demonstrable at postnatal day 7 and maximum stimulation occurred at about day 9. In contrast, cerebellum showed no initial reactivity to norepinephrine but still developed a large peak of response capability by day 9. In all 3 regions, the response declined rapidly thereafter during the period of major synaptogenesis of noradrenergic pathways. With histamine, none of the regions displayed ODC reactivity at 7 days postnatally; stimulation appeared by day 9, peaked at about day 11 and then declined rapidly. Thus, the trophic effect of histamine or norepinephrine toward ODC activity is present or develops postnatally and appears to terminate with synaptogenesis and onset of neurotransmitter properties of the amines.

Full Text

Duke Authors

Cited Authors

  • Morris, G; Seidler, FJ; Slotkin, TA

Published Date

  • April 4, 1983

Published In

Volume / Issue

  • 32 / 14

Start / End Page

  • 1565 - 1571

PubMed ID

  • 6835005

Pubmed Central ID

  • 6835005

International Standard Serial Number (ISSN)

  • 0024-3205

Language

  • eng

Conference Location

  • Netherlands