title: Disubstituted diaryl diselenides inhibit [3H]-serotonin uptake in rats.
abstract: Diphenyl diselenide (PhSe)2, the parent compound of disubstituted diaryl diselenides, produces significant antidepressant-like effect when evaluated in the forced swimming test (FST) in rats. The goal of this study was to investigate the effects of diphenyl diselenide (PhSe)2, m-trifluoromethyl-diphenyl diselenide (F3CPhSe)2 and p-methoxy-diphenyl diselenide (CH3OPhSe)2 on [3H]-serotonin uptake in rat platelets and synaptosomes. At concentrations higher than 10 microM (PhSe)2, and (F3CPhSe)2 inhibited about 20% [3H]-serotonin uptake in platelets. (CH3OPhSe)2 inhibited [3H]-serotonin uptake in platelets at concentrations higher than 1 microM. Similarly, (PhSe)2, (F3CPhSe)2, and (CH3OPhSe)2 significantly inhibited [3H]-serotonin uptake (about 50%) in synaptosomes from rat brain at concentrations higher than 1 microM. The maximal inhibitory effects of (PhSe)2, (F3CPhSe)2, and (CH3OPhSe)2 on [3H]-serotonin uptake from rat synaptosomes were 65%, 96%, and 80%, respectively. In conclusion, our results demonstrate that disubstituted diaryl diselenides altered monoaminergic system by interacting with monoamine uptake.
authors.affiliation: Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil.
authors.forename: V C
authors.initials: VC
authors.lastname: Borges
authors.forename: L
authors.initials: L
authors.lastname: Savegnago
authors.forename: G
authors.initials: G
authors.lastname: Dadalt
authors.forename: Cristina Wayne
authors.initials: CW
authors.lastname: Nogueira
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001555:Benzene Derivatives / Q000494:pharmacology; D001792:Blood Platelets / Q000187:drug effects* / Q000378:metabolism; D001921:Brain / Q000648:ultrastructure; D008297:Male; D016566:Organoselenium Compounds / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D012701:Serotonin / Q000378:metabolism*; D013574:Synaptosomes / Q000187:drug effects* / Q000378:metabolism; D014018:Tissue Distribution / Q000187:drug effects; D014316:Tritium / Q000378:metabolism
chemical_list: D001555:Benzene Derivatives; D016566:Organoselenium Compounds; C528548:p-methoxy-diphenyl diselenide; D014316:Tritium; C061132:diphenyldiselenide; D012701:Serotonin