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  • 1990-1994  (2)
  • dopamine  (1)
  • imipramine  (1)
  • PPi; inorganic pyrophosphate
  • 1
    Electronic Resource
    Electronic Resource
    No alterations in the 5-HT1A-mediated inhibition of forskolin-stimulated adenylate cyclase activity in the hippocampal membranes from rats chronically treated with lithium or antidepressants (1991)
    Springer
    Journal of neural transmission 86 (1991), S. 85-96 
    Details
    ISSN: 1435-1463
    Keywords: Lithium ; imipramine ; desipramine ; tranylcypromine ; 5-HT1A receptors ; adenylate cyclase ; hippocampus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to determine the relevance of 5-HT1A-related signal transduction in the mode of action of lithium and antidepressants, the effects of long-term treatment with these drugs on the 5-HT1A-mediated inhibition of forskolin-stimulated adenylate cyclase activity were investigated in the rat hippocampal membranes. Chronic administration of antidepressants altered neither the [3H]8-hydroxy-2-(di-n-propylamino)tetralin ([3H]8-OH-DPAT) binding sites nor the inhibition of forskolin-stimulated adenylate cyclase activity by 5-HT. Long-term treatment with lithium did not affect the inhibitory effect of 5-HT on the forskolin-stimulated adenylate cyclase activity, either. Neither the stimulation by forskolin nor the inhibition by guanyl-5′-ylimidodiphosphate (Gpp(NH)p) of adenylate cyclase activity was not influenced by lithium treatment, suggesting that lithium has no effects on the components of adenylate cyclase system distal to the 5-HT1A receptors. These results indicate that the 5-HT1A-mediated neural transmission has not such an important relevance in the mechanisms of action of lithium or antidepressants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01250570
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Competitive and noncompetitive N-methyl-D-aspartate antagonists protect dopaminergic and serotonergic neurotoxicity produced by methamphetamine in various brain regions (1993)
    Springer
    Journal of neural transmission 92 (1993), S. 97-106 
    Details
    ISSN: 1435-1463
    Keywords: Methamphetamine ; neurotoxicity ; N-methyl-D-aspartate ; dopamine ; serotonin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Protective effects of NMDA antagonists on dopaminergic and serotonergic neurotoxicity produced by methamphetamine (MA) were examined. Four injections of MA (7.5 mg/kg, s.c., at 2 h intervals) caused significant decrements (40–60% of control values) in levels of dopamine (DA) and its metabolites in the rat striatum and levels of serotonin (5-HT) and its metabolite in the medial prefrontal cortex, nucleus accumbens, striatum, anterior hypothalamus, amygdala and hippocampus. These decreases in DA, 5-HT and their metabolites were prevented by pretreatment with MK-801, a noncompetitive N-methyl-D-aspartate (NMDA) antagonist, or D-CPP-ene (SDZ EAA 494), a competitive NMDA antagonist. The results suggest that NMDA receptors play a role for MA-induced serotonergic damage in various brain regions as well as dopaminergic damage in the striatum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01244869
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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