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Rodent models of impulsive compulsive behaviors in Parkinson's disease: how far have we reached?

In English

Författare

Summary, in English

There is increasing awareness that the medications used to treat the motor symptoms of Parkinson's disease (PD) contribute to the development of behavioral addictions, which have been clinically defined as impulsive compulsive behaviors (ICBs). These features include pathological gambling, compulsive sexual behavior, binge eating, compulsive shopping, excessive hobbyism or punding, and the excessive use of dopaminergic medication. ICBs frequently have devastating effects on the social and occupational function of the affected individuals as well as their families. Although ICBs are an important clinical problem in PD, the number of studies in which these symptoms have been modeled in rodents is still limited. This may depend on uncertainties regarding, on one hand, the pathophysiology of these behaviors and, on the other hand, the experimental paradigms with which similar features can be induced in rodents. To help compose these uncertainties, we will here review the characteristics of ICBs in PD patients and then describe behavioral methods to approximate them in rodents. We will discuss both the challenges and the possibilities of applying these methods to animals with PD-like lesions, and review the recent progress made to this end. We will finally highlight important questions deserving further investigation. Rodent models having both face validity and construct validity to parkinsonian ICBs will be essential to further pathophysiological and therapeutic investigations into this important area.

Publiceringsår

2015

Språk

Engelska

Sidor

561-573

Publikation/Tidskrift/Serie

Neurobiology of Disease

Volym

82

Issue

aug 29

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Neurology

Status

Published

Forskningsgrupp

  • Basal Ganglia Pathophysiology

ISBN/ISSN/Övrigt

  • ISSN: 0969-9961