Impulsive-compulsive behaviors in parkin-associated Parkinson disease

Francesca Morgante, Alfonso Fasano, Monia Ginevrino, Simona Petrucci, Lucia Ricciardi, Francesco Bove, Chiara Criscuolo, Marcello Moccia, Anna Rosa, Chiara Sorbera, Anna Rita Bentivoglio, Paolo Barone, Giuseppe De Michele, Maria Teresa Pellecchia, Enza Maria Valente

Research output: Contribution to journalArticlepeer-review


OBJECTIVE: The aim of this multicenter, case-control study was to investigate the prevalence and severity of impulsive-compulsive behaviors (ICBs) in a cohort of patients with parkin-associated Parkinson disease (PD) compared to a group of patients without the mutation.

METHODS: We compared 22 patients with biallelic parkin mutations (parkin-PD) and 26 patients negative for parkin, PINK1, DJ-1, and GBA mutations (PD-NM), matched for age at onset, disease duration, levodopa, and dopamine agonist equivalent daily dose. A semistructured interview was used to diagnose each of the following ICBs: compulsive sexual behavior, compulsive buying, binge eating, punding, hobbyism, and compulsive medication use. The Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease-Rating Scale (QUIP-RS) was adopted to rate ICB severity.

RESULTS: Frequency of patients with at least one ICB was comparable between parkin-PD and PD-NM. Nevertheless, when analyzing the distribution of specific ICBs, a higher frequency of compulsive shopping, binge eating, and punding/hobbyism was found in the parkin-PD group. Compared to PD-NM, parkin-PD patients with ICB had younger onset age and higher frequency of smokers; in 5 patients, ICB had predated PD onset. Total and partial (compulsive buying, compulsive sexual behavior, binge eating, hobbyism/punding) QUIP-RS scores were higher in patients with parkin-PD compared to patients with PD-NM. Logistic regression analysis showed that the presence of parkin mutations was associated with smoking status and higher QUIP-RS total score.

CONCLUSIONS: Our data expand the parkin-associated phenotypic spectrum demonstrating higher frequency and severity of specific ICBs, and suggesting an association between the parkin genotype, smoking status, and ICB severity.

Original languageEnglish
Pages (from-to)1436-1441
Number of pages6
Issue number14
Publication statusPublished - Oct 4 2016


  • Journal Article


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