Mesocortical dopamine neurons: rapid transmitter turnover compared to other brain catecholamine systems

Brain Res. 1981 Aug 10;218(1-2):376-82.

Abstract

The decline of dopamine and norepinephrine after intravenous alpha-methyltyrosine was used to determine the rate constants for catecholamine turnover in the rat prefrontal cortex, olfactory tubercle and striatum. Dopamine turnover varied more between brain regions and was generally faster than the corresponding norepinephrine turnover. Prefrontal cortical dopamine was unaffected by dorsal noradrenergic bundle lesions. The turnover of prefrontal cortical dopamine was found to be 2-4 times faster than dopamine turnover in the olfactory tubercle and striatum.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • 3,4-Dihydroxyphenylacetic Acid / metabolism
  • Animals
  • Cerebral Cortex / drug effects
  • Cerebral Cortex / metabolism*
  • Corpus Striatum / drug effects
  • Corpus Striatum / metabolism*
  • Dopamine / metabolism*
  • Hydroxydopamines / pharmacology
  • Male
  • Methyltyrosines / pharmacology
  • Norepinephrine / metabolism
  • Olfactory Bulb / drug effects
  • Olfactory Bulb / metabolism*
  • Rats

Substances

  • Hydroxydopamines
  • Methyltyrosines
  • 3,4-Dihydroxyphenylacetic Acid
  • Dopamine
  • Norepinephrine