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bioRxiv · 10.1101/2024.11.26.625570

Differential effects of statins on the anti-dyskinetic activity of sub-anesthetic ketamine

Bartlett, M. J.·Stopera, C. J.·Cowen, S. L.·Sherman, S. J.·Falk, T.
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Abstract

Sub-anesthetic ketamine has been demonstrated to reduce abnormal involuntary movements (AIMs) in preclinical models of L-DOPA-induced dyskinesia (LID) and retrospective Parkinsons disease case reports. In this study, we examined the effects on L-DOPA-induced dyskinesia of two statins alone and in combination with ketamine in unilateral 6-hydroxydopamine-lesioned male rats, the standard preclinical LID model. Sub-anesthetic ketamine attenuated the development of AIMs, while lovastatin only showed anti-dyskinetic activity at the beginning of the priming but did not prevent the development of LID. The polar pravastatin blocked the long-term anti-dyskinetic effects of ketamine, while the non-polar lovastatin did not. This study shows different classes of statins affect LID differentially, points to an important drug interaction and further supports ongoing clinical testing of sub-anesthetic ketamine to treat LID in individuals with Parkinsons disease.

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Bartlett, M. J., Stopera, C. J., Cowen, S. L., Sherman, S. J., Falk, T.. 2024-11-27. Differential effects of statins on the anti-dyskinetic activity of sub-anesthetic ketamine. https://doi.org/10.1101/2024.11.26.625570

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