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Impulsive-compulsive spectrum behaviors in pathologically confirmed progressive supranuclear palsy
Sean S O'Sullivan1, Atbin Djamshidian, Zeshan Ahmed
1Reta Lila Weston Institute of Neurological Studies, Institute of Neurology, University College London, London, United Kingdom.
Summary
Impulsive-compulsive behaviors (ICBs) are linked to dopamine replacement therapy (DRT) in Parkinson's disease (PD). This study confirms ICBs in progressive supranuclear palsy patients using dopamine agonists, suggesting medication
Area of Science:
- Neuroscience
- Neurology
- Pharmacology
Background:
- Impulsive-compulsive behaviors (ICBs) are increasingly recognized in Parkinson's disease (PD) patients undergoing dopamine replacement therapy (DRT).
- Differentiating the effects of DRT from the underlying PD pathology in the etiology of ICBs remains challenging.
- Dopamine agonists, used for conditions beyond PD, have been anecdotally linked to ICBs, but pathological evidence is scarce.
Observation:
- Three pathologically confirmed cases of progressive supranuclear palsy (PSP) developed ICBs.
- These ICBs were associated with the use of dopamine agonists.
- The study includes pathological comparisons with other PSP case series.
Findings:
- Dopamine agonist therapy is associated with the development of ICBs in PSP.
- Pathological confirmation strengthens the link between dopamine agonists and ICBs in neurodegenerative conditions.
- PSP patients may be susceptible to ICBs induced by dopaminergic medication.
Implications:
- These findings suggest a potential etiological role for dopamine agonists in ICBs, even in non-PD neurodegenerative diseases.
- Highlights the need for careful monitoring of ICBs in PSP patients treated with dopamine agonists.
- Contributes to understanding the neurobiological underpinnings of ICBs in dopaminergic medication users.
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