Priming with L-DOPA differently affects dynorphin and substance P mRNA levels in the striatum of 6-hydroxydopamine-lesioned rats after challenge with dopamine D1-receptor agonist

S V van de Witte, B Drukarch, J C Stoof, P Voorn

Research output: Contribution to journal › Article › Academic › peer-review

23 Citations (Scopus)

Abstract

In unilaterally 6-hydroxydopamine-lesioned rats, potentiation of D1-agonist-induced turning behavior by priming with l-DOPA was correlated with changes in striatal neuropeptide mRNA levels. In non-primed rats, administration of the D1-agonist SKF-38393 markedly increased dynorphin and substance P mRNA levels in the lesioned striatum. Priming with l-DOPA dissociated the response of the two neuropeptides to the D1-agonist, with higher dynorphin and reduced substance P mRNA levels.

Original languageEnglish
Pages (from-to)219-23
Number of pages5
JournalExperimental Brain Research
Volume61
Issue number1-2
Publication statusPublished - 30 Oct 1998

Keywords

  • 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine
  • Animals
  • Brain
  • Corpus Striatum
  • Dynorphins
  • Injections, Intraperitoneal
  • Injections, Subcutaneous
  • Journal Article
  • Levodopa
  • Male
  • Oxidopamine
  • RNA, Messenger
  • Rats
  • Rats, Wistar
  • Receptors, Dopamine D1
  • Research Support, Non-U.S. Gov't
  • Stereotaxic Techniques
  • Substance P

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