Abstract：
:Recently published studies have suggested that behavioral and neurochemical changes induced by selective serotonin (5-hydroxytryptamine, 5-HT) reuptake inhibitors are potentiated by coadministration of a 5-HT1A receptor antagonist. The potentiating effect is hypothesized to be due to antagonism of somatodendritic 5-HT1A autoreceptors. In the present study the effects of concomitant administration of a selective 5-HT reuptake inhibitor with a 5-HT1A receptor antagonist (N-[2-[4-(2-methoxyphenyl)-1-piperazinyl] ethyl]-N-(2-pyridinyl) cyclo-hexanecarboxamide (WAY 100635) or a beta-adrenoceptor and 5-HT1A/1B receptor antagonist (pindolol or (-)-penbutolol) were studied in isolated aggressive mice. WAY 100635 was inactive, but high doses of WAY 100635 produced a marked anti-aggressive effect when combined with a non-effective dose of citalopram or paroxetine. Low doses of pindolol, but not (-)-penbutolol, produced a minor but significant anti-aggressive effect in combination with citalopram or paroxetine. High doses of pindolol or (-)-penbutolol inhibited aggressive behavior, an effect which was reversed by citalopram or paroxetine. The beta-adrenoceptor antagonist, metoprolol, but not the alpha1-adrenoceptor antagonist, prazosin, facilitated the anti aggressive effect of citalopram. The significance of these findings is discussed relative to the above hypothesis.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Sànchez Cdoi
10.1016/s0014-2999(97)01199-0subject
Has Abstractpub_date
1997-09-10 00:00:00pages
127-32issue
2-3eissn
0014-2999issn
1879-0712pii
S0014-2999(97)01199-0journal_volume
334pub_type
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