PMID- 36586362 OWN - NLM STAT- MEDLINE DCOM- 20230321 LR - 20230413 IS - 2213-1582 (Electronic) IS - 2213-1582 (Linking) VI - 37 DP - 2023 TI - Neural correlates of impulsive compulsive behaviors in Parkinson's disease: A Japanese retrospective study. PG - 103307 LID - S2213-1582(22)00372-2 [pii] LID - 10.1016/j.nicl.2022.103307 [doi] LID - 103307 AB - BACKGROUND: Impulsive compulsive behaviors (ICBs) often disturb patients with Parkinson's Disease (PD), of which impulse control disorder (ICD) and dopamine dysregulation syndrome (DDS) are two major subsets. The nucleus accumbens (NAcc) is involved in ICB; however, it remains unclear how the NAcc affects cortical function and defines the different behavioral characteristics of ICD and DDS. OBJECTIVES: To identify the cortico-striatal network primarily involved in ICB and the differences in these networks between patients with ICD and DDS using structural and resting-state functional magnetic resonance imaging. METHODS: Patients with PD were recruited using data from a previous cohort study and divided into those with ICB (ICB group) and without ICB (non-ICB group) using the Japanese version of the Questionnaire for Impulsive Compulsive Disorders in Parkinson's Disease (J-QUIP). From these two groups, we extracted 37 pairs matched for age, sex, disease duration, and levodopa equivalent daily dose of dopamine agonists. Patients with ICB were further classified as having ICD or DDS based on the J-QUIP subscore. General linear models were used to compare gray matter volume and functional connectivity (FC) of the NAcc, caudate, and putamen between the ICB and non-ICB groups and between patients with ICD and those with DDS. RESULTS: We found no significant differences in gray matter volumebetween the ICB and non-ICB groups or between patients with ICD and those with DDS. Compared with the non-ICB group, the FC of the right NAcc in the ICB group was lower in the bilateral ventromedial prefrontal cortex and higher in the left middle occipital gyrus. Furthermore, patients with DDS showed higher FC between the right putamen and left superior temporal gyrus and higher FC between the left caudate and bilateral middle occipital gyrus than patients with ICD. In contrast, patients with ICD exhibited higher FC between the left NAcc and the right posterior cingulate cortex than patients with DDS. CONCLUSIONS: The functionally altered network between the right NAcc and ventromedial prefrontal cortex was associated with ICB in PD. In addition, the surrounding cortico-striatal networks may differentiate the behavioral characteristics of patients with ICD and those with DDS. CI - Copyright (c) 2022 The Author(s). Published by Elsevier Inc. All rights reserved. FAU - Kimura, Ikko AU - Kimura I AD - Department of Neurology, Osaka University Graduate School of Medicine, Suita 565-0871, Japan; Graduate School of Frontier Biosciences, Osaka University, Suita 565-0871, Japan. FAU - Revankar, Gajanan S AU - Revankar GS AD - Department of Neurology, Osaka University Graduate School of Medicine, Suita 565-0871, Japan. FAU - Ogawa, Kotaro AU - Ogawa K AD - Department of Neurology, Osaka University Graduate School of Medicine, Suita 565-0871, Japan. FAU - Amano, Kaoru AU - Amano K AD - Graduate School of Frontier Biosciences, Osaka University, Suita 565-0871, Japan; Graduate School of Information Science and Technology, The University of Tokyo, Tokyo 113-8656, Japan. FAU - Kajiyama, Yuta AU - Kajiyama Y AD - Department of Neurology, Osaka University Graduate School of Medicine, Suita 565-0871, Japan. Electronic address: kajiyama@neurol.med.osaka-u.ac.jp. FAU - Mochizuki, Hideki AU - Mochizuki H AD - Department of Neurology, Osaka University Graduate School of Medicine, Suita 565-0871, Japan. Electronic address: hmochizuki@neurol.med.osaka-u.ac.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221228 PL - Netherlands TA - Neuroimage Clin JT - NeuroImage. Clinical JID - 101597070 RN - VTD58H1Z2X (Dopamine) SB - IM MH - Humans MH - *Parkinson Disease/complications/diagnostic imaging MH - Retrospective Studies MH - East Asian People MH - Impulsive Behavior/physiology MH - Dopamine MH - Compulsive Behavior/diagnostic imaging PMC - PMC9817029 OTO - NOTNLM OT - Cortico-striatal network OT - Functional connectivity OT - Impulsive compulsive behaviors OT - Parkinson's disease OT - Voxel-based morphometry COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/01/01 06:00 MHDA- 2023/03/22 06:00 PMCR- 2022/12/28 CRDT- 2022/12/31 18:18 PHST- 2022/09/20 00:00 [received] PHST- 2022/12/25 00:00 [revised] PHST- 2022/12/26 00:00 [accepted] PHST- 2023/01/01 06:00 [pubmed] PHST- 2023/03/22 06:00 [medline] PHST- 2022/12/31 18:18 [entrez] PHST- 2022/12/28 00:00 [pmc-release] AID - S2213-1582(22)00372-2 [pii] AID - 103307 [pii] AID - 10.1016/j.nicl.2022.103307 [doi] PST - ppublish SO - Neuroimage Clin. 2023;37:103307. doi: 10.1016/j.nicl.2022.103307. Epub 2022 Dec 28.