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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Mediation of the antidepressant-like effect of 8-OH-DPAT in mice by postsynaptic 5-HT1A receptors.

1. The 5-hydroxytryptamine (5-HT)1A agonist 8-hydroxy-2-(dipropylamino)tetralin (8-OH-DPAT) has been evaluated in a mouse model for detecting potential antidepressants (Porsolt test). The effects of various receptor antagonists, lesions of brain monoaminergic neurones and chronic drug treatments on this 8-OH-DPAT-induced response have also been determined. 2. 8-OH-DPAT (0.3-10.0 mg kg-1, s.c.) dose-dependently increased the mobility of mice in the Porsolt test. Other selective 5-HT1A receptor ligands (0.3-30 mg kg-1, s.c.) either mimicked the 8-OH-DPAT response (ipsapirone, at 10 and 30 mg kg-1, s.c.) or were inactive (buspirone and gepirone). However, each of these compounds (< or = 100 mg kg-1, p.o.) inhibited the response to 8-OH-DPAT (3 mg kg-1, s.c.) when given concurrently. 3. The putative 5-HT1A antagonists, spiroxatrine (1-30 mg kg-1, p.o.), (+/-)-pindolol (30 mg kg-1, p.o.) and methiothepin (3-10 mg kg-1, p.o.), each attenuated the 8-OH-DPAT (3 mg kg-1, s.c.)-induced increase in mobility. 4. The dopamine D1 receptor antagonist, SCH 23390 (3-10 mg kg-1, p.o.), weakly reversed the 8-OH-DPAT response.(ABSTRACT TRUNCATED AT 250 WORDS)[1]

References

  1. Mediation of the antidepressant-like effect of 8-OH-DPAT in mice by postsynaptic 5-HT1A receptors. Luscombe, G.P., Martin, K.F., Hutchins, L.J., Gosden, J., Heal, D.J. Br. J. Pharmacol. (1993) [Pubmed]
 
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