| Autor: |
Guzmán DC; Laboratorio de Neuroquímica, Instituto Nacional de Pediatría, Mexico City, Mexico., Ruíz NL, García EH, Mejía GB, Téllez PP, Jimenez GE, De la Rosa Apreza M, Olguín HJ |
| Jazyk: |
angličtina |
| Zdroj: |
Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme [Horm Metab Res] 2009 May; Vol. 41 (5), pp. 363-7. Date of Electronic Publication: 2009 Feb 04. |
| DOI: |
10.1055/s-0028-1128145 |
| Abstrakt: |
Some drugs that are clinically used in weight control, like sibutramine, act on the serotonergic metabolism, but its relation with free radical (FR) production in the CNS is still unknown. The aim of the work was to evaluate the effect of sibutramine on FR production. Female and male Wistar rats (250 g weight) were used; the animals received sibutramine (10 mg/kg each 36 hours) intraperitoneally during 15 days. At the end of the study, the rats were sacrificed and their brains used to measure lipid peroxidation (TBARS), Na+, K+ ATPase activity, reduced glutathione (GSH), and tryptophan (TRP) levels, by means of validated methods. The activity of Na+, K+ATPase and total ATPase was increased in males and decreased in females. GSH concentration was increased and the levels of TBARS decreased by an effect related to sibutramine in the female group. Sibutramine decreased TRP concentration in the female group, but increased it in the male one, with respect to the control group. Our results suggest that sibutramine produce an antioxidant effect stimulated by the endogenously produced tryptophan and it protects the fluidity of plasma membrane in rat brain. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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