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• W2607452034 endingPage "131" @default.
• W2607452034 startingPage "118" @default.
• W2607452034 abstract "The metabolism of tryptophan through kynurenine and serotonin pathways is linked to depression. Here, effects of different drugs with antidepressant properties (vortioxetine, fluoxetine, and ketamine) on various tryptophan metabolites in different brain regions and plasma were examined using tandem mass spectrometry (LC-MS/MS), in Flinders Sensitive Line rats, a genetic rat model of depression, and its controls: Flinders Sensitive Line and Sprague-Dawley rats. Protein levels of kynurenine pathway enzymes were measured in the brains and livers of these rat strains. Furthermore, effects of vortioxetine on tryptophan metabolites were assessed in the cortical regions of lupus mice (MRL/MpJ-FasIpr ), a murine model of increased depression-like behavior associated with inflammation. Sustained vortioxetine or fluoxetine (at doses aimed to fully occupy serotonin transporter via food or drinking water for at least 14 days) reduced levels of the excitotoxin quinolinic acid (QUIN) in various brain regions in all rats. Furthermore, chronic vortioxetine reduced levels of QUIN in MRL/MpJ-FasIpr mice. Acute i.p. administration of fluoxetine (10 mg/kg) or vortioxetine (10 mg/kg) led to reduced brain 5-hydroxyindoleacetic acid in Sprague-Dawley rats (2, 4, 6, and 8 h) and a similar trend was evident in Flinders Sensitive Line and Flinders Sensitive Line rats after 4 h. In contrast, single or repeated administration of ketamine (15 mg/kg i.p.) did not induce significant changes in metabolite levels. In conclusion, sustained vortioxetine and fluoxetine administration decreased QUIN independent of species, while ketamine was ineffective. These results support the hypothesis that modulating tryptophan metabolism may be part of the mechanism of action for some antidepressants." @default.
• W2607452034 created "2017-04-28" @default.
• W2607452034 creator A5008642683 @default.
• W2607452034 creator A5012173155 @default.
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• W2607452034 creator A5061451331 @default.
• W2607452034 creator A5077814948 @default.
• W2607452034 creator A5089941210 @default.
• W2607452034 date "2017-05-16" @default.
• W2607452034 modified "2023-10-12" @default.
• W2607452034 title "Drugs with antidepressant properties affect tryptophan metabolites differently in rodent models with depression-like behavior" @default.
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