Related Experiment Video
Updated: Nov 11, 2025
Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
Published on: January 7, 2014
Genotoxic and oxidative effect of duloxetine on mouse brain and liver tissues
Isela Álvarez-González1, Scarlett Camacho-Cantera1, Patricia Gómez-González1
1Laboratorio de Genética, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Av. Wilfrido Massieu s/n. Zacatenco, Ciudad de México, 07738, México.
Abstract:
We evaluated the duloxetine DNA damaging capacity utilizing the comet assay applied to mouse brain and liver cells, as well as its DNA, lipid, protein, and nitric oxide oxidative potential in the same cells. A kinetic time/dose strategy showed the effect of 2, 20, and 200 mg/kg of the drug administered intraperitoneally once in comparison with a control and a methyl methanesulfonate group. Each parameter was evaluated at 3, 9, 15, and 21 h postadministration in five mice per group, except for the DNA oxidation that was examined only at 9 h postadministration. Results showed a significant DNA damage mainly at 9 h postexposure in both organs. In the brain, with 20 and 200 mg/kg we found 50 and 80% increase over the control group (p ≤ 0.05), in the liver, the increase of 2, 20, and 200 mg/kg of duloxetine was 50, 80, and 135% in comparison with the control level (p ≤ 0.05). DNA, lipid, protein and nitric oxide oxidation increase was also observed in both organs. Our data established the DNA damaging capacity of duloxetine even with a dose from the therapeutic range (2 mg/kg), and suggest that this effect can be related with its oxidative potential.
Insights
Duloxetine demonstrated DNA damaging capacity and oxidative potential in mouse brain and liver cells, even at therapeutic doses. This effect was observed through comet assays and oxidative stress markers.
Area of Science:
- Toxicology
- Molecular Biology
- Pharmacology
Background:
- Duloxetine is a widely prescribed antidepressant.
- Understanding its genotoxic and oxidative stress potential is crucial for safety assessment.
Purpose of the Study:
- To evaluate the DNA damaging capacity of duloxetine.
- To assess the oxidative potential of duloxetine on DNA, lipids, proteins, and nitric oxide.
Main Methods:
- Comet assay was used to detect DNA damage in mouse brain and liver cells.
- Kinetic time/dose study with duloxetine (2, 20, 200 mg/kg) and methyl methanesulfonate.
- Oxidative potential assessed at 3, 9, 15, and 21 hours post-administration.
Main Results:
- Significant DNA damage observed at 9 hours post-exposure in both brain and liver.
- Duloxetine increased DNA damage by 50-135% compared to controls, depending on dose and organ.
- Increased oxidation of DNA, lipids, proteins, and nitric oxide was noted.
Conclusions:
- Duloxetine exhibits DNA damaging capacity, even at a therapeutic dose (2 mg/kg).
- The genotoxic effect of duloxetine may be linked to its oxidative potential.
- Further investigation into duloxetine's long-term toxicological effects is warranted.
More Related Videos
09:51Assessing Cell Cycle Progression of Neural Stem and Progenitor Cells in the Mouse Developing Brain after Genotoxic Stress
Published on: May 7, 2014
09:02Protocol for the Differentiation of Human Induced Pluripotent Stem Cells into Mixed Cultures of Neurons and Glia for Neurotoxicity Testing
Published on: June 9, 2017