These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


PUBMED FOR HANDHELDS

Search MEDLINE/PubMed


  • Title: Effects of the dopamine D3 receptor agonist, R(+)-7-hydroxy-N,N-di-n-propyl-2-aminotetralin, on memory processes in mice.
    Author: Ukai M, Tanaka T, Kameyama T.
    Journal: Eur J Pharmacol; 1997 Apr 18; 324(2-3):147-51. PubMed ID: 9145765.
    Abstract:
    The putative dopamine D3 receptor agonist, R(+)-7-hydroxy-N,N-di-n-propyl-2-aminotetralin (R(+)-7-OH-DPAT) (0.1-100 microg/kg, s.c.), administered before training, immediately after training, and before retention significantly shortened step-down latency of passive avoidance learning, indicating the amnesic effects of R(+)-7-OH-DPAT. Neither the dopamine D1 receptor antagonist, R(+)-7-chloro-8-hydroxy-3-methyl-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzaz epine maleate R(+)-SCH23390) (2.5 and 5 microg/kg, i.p.), nor the dopamine D2 receptor antagonist, S(-)-sulpiride (10 and 30 mg/kg, i.p.), markedly influenced the R(+)-7-OH-DPAT (10 and 100 microg/kg, s.c.)-induced amnesia. In addition, only a 1000 microg/kg dose of R(+)-7-OH-DPAT decreased locomotor activity; 1 and 100 microg/kg doses of the drug were ineffective. These results suggest that the amnesic effects of the dopamine D3 receptor agonist, R(+)-7-OH-DPAT, are not mediated via dopamine D1 or D2 receptors in the brain.
    [Abstract] [Full Text] [Related] [New Search]