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Oral administration of coenzyme Q10 reduces MPTP-induced loss of dopaminergic nerve terminals in the striatum in mice

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Abstract

The neuroprotective effect of coenzyme Q10 (CoQ10) has been reported in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated mice. In this study, we investigated whether oral administration of CoQ10 could protect the striatal dopaminergic (DAergic) nerve terminals against MPTP-induced toxicity in C57BL/6N mice using immunoisolation technique for DAergic synaptosomes. CoQ10 significantly attenuated decrease in dopamine transporter as well as in synaptophysin and actin protein levels in DAergic synaptosomes from MPTP-treated mice. The effect of CoQ10 was also observed in crude synaptosomes fraction, but not in homogenate. Our results indicate that the nerve terminals are a site for the action of CoQ10 against the MPTP-induced DAergic neurodegeneration.

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Acknowledgments

This study was supported by the Specific Research Fund of the Hokuriku University.

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Correspondence to Yasuhide Mitsumoto.

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Kobayashi, S., Muroyama, A., Matsushima, H. et al. Oral administration of coenzyme Q10 reduces MPTP-induced loss of dopaminergic nerve terminals in the striatum in mice. Neurol Sci 33, 195–199 (2012). https://doi.org/10.1007/s10072-011-0627-z

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  • DOI: https://doi.org/10.1007/s10072-011-0627-z

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