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Acute effects of selective serotonin reuptake inhibitors on neuroleptic-induced catalepsy in mice BJMBR
Pires,J.G.P.; Bonikovski,V.; Futuro-Neto,H.A..
Depression found in Parkinson disease (PD) usually responds to selective serotonin reuptake inhibitors (SSRIs). Drugs that modify experimental neuroleptic catalepsy (NC) might affect extrapyramidal symptoms in PD. Therefore, the effects of SSRIs on NC were tested in mice, 26-36 g, separated by sex. Catalepsy was induced with haloperidol (H; 1 mg/kg, ip) and measured at 30-min intervals using a bar test. An SSRI (sertraline, ST; paroxetine, PX; fluoxetine) or vehicle (C) was injected ip 30 min before H. Dunnett's test was used for comparison of means. ST (1-5 mg/kg) or PX (1-5 mg/kg) attenuated NC, with a similar inhibition found in both sexes (5 mg/kg, 180 min: ST - males: 124 ± 10 vs 714 ± 15 s in C; females: 116 ± 10 vs 718 ± 6 s in C; PX - males: 106 ±...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Selective serotonin reuptake inhibitors; Fluoxetine; Sertraline; Paroxetine; Extrapyramidal system; Catalepsy.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001200015
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Gender-related differences in the effects of nitric oxide donors on neuroleptic-induced catalepsy in mice BJMBR
Pires,J.G.P.; Costa,P.G.; Saraiva,F.P.; Bonikovski,V.; Futuro Neto,H.A..
It has been suggested that nigrostriatal dopaminergic transmission is modulated by nitric oxide (NO). Since there is evidence that gonadal hormones can affect extrapyramidal motor behavior in mammals, we investigated the effects of isosorbide dinitrate (ISD), linsidomine (SIN-1) and S-nitroso-N-acetylpenicillamine (SNAP), three pharmacologically different NO donors, on neuroleptic-induced catalepsy in 60- to 80-day-old male and female albino mice. Catalepsy was induced with haloperidol (1 mg/kg, ip) and measured at 30-min intervals by means of a bar test. Drugs (or appropriate vehicle) were injected ip 30 min before haloperidol, with each animal being used only once. ISD (5, 20 and 50 mg/kg) caused a dose-dependent inhibition of catalepsy in male mice...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neuroleptic-induced catalepsy; Nitric oxide donors; Gender differences; Linsidomine; SNAP; Isosorbide dinitrate.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000200012
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