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1.
Acta cir. bras ; 23(5): 447-450, Sept.-Oct. 2008. tab
Article in English | LILACS | ID: lil-491911

ABSTRACT

PURPOSE: To compare the effects of the antidepressant drugs duloxetine and amitriptyline on depressive behaviors in rats. METHODS: Fifteen male Wistar rats were given systemic injections of duloxetine, amitriptyline or saline prior to a Forced Swimming Test (FST). Immobility and number of stops were measured. Data were analyzed by one-way ANOVA and Kruskall-Wallis. RESULTS: Rats given injections of duloxetine displayed fewer stops than the amitriptyline and control group (p< 0.05). The control group and Amitriptyline showed no difference (p=0.8). CONCLUSION: Duloxetine reduced depressive behaviors in the Forced Swimming Test been more effective than amitriptyline.


OBJETIVO: Comparar o efeito antidepressivo da droga cloridrato de duloxetina com a amitriptilina. MÉTODOS: O teste do nado forçado, teste comportamental que avalia a atividade antidepressiva em ratos, foi utilizado em 15 ratos Wistar, machos adultos, divididos em três grupos iguais: duloxetina, amitriptilina e controle. Os dados foram analisados pelo teste One-way ANOVA e Kruskall-Wallis. RESULTADOS: Houve diferença significativa entre o número de paradas (p <0,05) entre os grupos duloxetina e amitriptilina e o grupo controle. Grupo amitriptilina e controle não apresentaram diferença (p=0,8). CONCLUSÃO: A duloxetina reduziu o comportamento depressivo sendo mais efetiva do que a amitriptilina.


Subject(s)
Animals , Male , Rats , Amitriptyline/therapeutic use , Antidepressive Agents/therapeutic use , Depression/drug therapy , Swimming/psychology , Thiophenes/therapeutic use , Disease Models, Animal , Depression/psychology , Rats, Wistar
2.
Acta cir. bras ; 22(5): 351-354, Sept.-Oct. 2007. tab
Article in English | LILACS | ID: lil-463458

ABSTRACT

PURPOSE: To compare the effects of the antidepressant drugs duloxetine and fluoxetine on depressive behaviors in rodents. METHODS: Eighteen male Wistar rats were given systemic injections of duloxetine, fluoxetine, or saline prior to a Forced Swimming Test (FST). Immobility and number of stops were measured. RESULTS: Rats given injections of fluoxetine displayed significantly less immobility (p = 0.02) and fewer stops than the control group (p = 0.003). Duloxetine significanlty reduced the number of stops (p = 0.003), but did not effect immobility (p = 0.48). CONCLUSION: Duloxetine and fluoxetine reduced depressive behaviors in the Forced FST. However, our findings suggest that fluoxetine is more effective than duloxetine.


OBJETIVO: Comparar o efeito antidepressivo da droga cloridrato de duloxetina com a fluoxetina. MÉTODOS: O teste do nado forçado, teste comportamental que avalia a atividade antidepressiva em ratos, foi utilizado em 18 ratos Wistar, machos adultos, divididos em três grupos iguais: duloxetina, fluoxetina e controle. RESULTADOS: Os dados do teste do nado forçado foram analisados pelo teste One-way ANOVA, Mann Whitney e Kruskall-Wallis.Houve diferença significativa (p = 0,003) entre o número de paradas dos grupos duloxetina e fluoxetina e o grupo controle. CONCLUSÃO: A duloxetina e a fluoxetina tiveram frequência de paradas similares. A fluoxetina mostrou ser mais efetiva que a duloxetina no teste do nado forçado em ratos.


Subject(s)
Animals , Male , Rats , Antidepressive Agents/pharmacology , Depression/drug therapy , Fluoxetine/pharmacology , Swimming , Thiophenes/pharmacology , Analysis of Variance , Immobilization/psychology , Models, Animal , Motor Activity/drug effects , Motor Activity/physiology , Rats, Wistar , Statistics, Nonparametric , Swimming/psychology
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