4.7 Article

Cognitive Phenotypes in Parkinson's Disease Differ in Terms of Brain-Network Organization and Connectivity

Journal

HUMAN BRAIN MAPPING
Volume 38, Issue 3, Pages 1604-1621

Publisher

WILEY
DOI: 10.1002/hbm.23474

Keywords

cognition; dementia; fMRI; resting state connectivity

Funding

  1. Michael J. Fox Foundation

Ask authors/readers for more resources

Cognitive deficits are common in Parkinson's disease and we suspect that dysfunctions of connected brain regions can be the source of these deficits. The aim of the present study was to investigate changes in whole- brain intrinsic functional connectivity according to differences in cognitive profiles in Parkinson's disease. 119 participants were enrolled and divided into four groups according to their cognitive phenotypes (determined by a cluster analysis): (i) 31 cognitively intact patients (G1), (ii) 31 patients with only slight mental slowing (G2), (iii) 43 patients with mild to moderate deficits mainly in executive functions (G3), (iv) 14 patients with severe deficits in all cognitive domains (G4- 5). RsfMRI whole- brain connectivity was examined by two complementary approaches: graph theory for studying network functional organization and network- based statistics (NBS) for exploring functional connectivity amongst brain regions. After adjustment for age, duration of formal education and center of acquisition, there were significant group differences for all functional organization indexes: functional organization decreased (G1> G2> G3> G4- 5) as cognitive impairment worsened. Between- group differences in functional connectivity (NBS corrected, P< 0.01) mainly concerned the ventral prefrontal, parietal, temporal and occipital cortices as well as the basal ganglia. In Parkinson's disease, brain network organization is progressively disrupted as cognitive impairment worsens, with an increasing number of altered connections between brain regions. We observed reduced connectivity in highly associative areas, even in patients with only slight mental slowing. The association of slowed mental processing with loss of connectivity between highly associative areas could be an early marker of cognitive impairment in Parkinson's disease and may contribute to the detection of prodromal forms of Parkinson's disease dementia. (C) 2016 Wiley Periodicals, Inc.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Review Clinical Neurology

Neuroimaging of Anxiety in Parkinson's Disease: A Systematic Review

Guillaume Carey, Meltem Gormezoglu, Joost J. A. de Jong, Paul A. M. Hofman, Walter H. Backes, Kathy Dujardin, AlbertF G. Leentjens

Summary: Anxiety symptoms in Parkinson's disease are associated with structural and functional changes in the fear and limbic cortico-striato-thalamocortical circuits. The neuropathology of PD may affect these circuits in different ways, which explains the high prevalence of anxiety and associated symptoms in PD.

MOVEMENT DISORDERS (2021)

Review Medicine, Research & Experimental

Cognitive Outcome After Deep Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Systematic Review

Tim A. M. Bouwens van Der Vlis, Annelien Duits, Megan M. G. H. van de Veerdonk, Anne E. P. Mulders, Koen R. J. Schruers, Yasin Temel, Linda Ackermans, Albert F. G. Leentjens

Summary: Deep brain stimulation (DBS) is an effective treatment for refractory obsessive-compulsive disorder (OCD) and neuropsychological assessment plays a crucial role in monitoring the cognitive safety of the treatment. This systematic review found variable cognitive outcomes following DBS for OCD, particularly in domains such as attention, memory, and executive functioning. Further research is needed to better understand the cognitive safety and working mechanisms of DBS for OCD.

NEUROMODULATION (2022)

Article Clinical Neurology

Resting-State Functional Connectivity in Frontostriatal and Posterior Cortical Subtypes in Parkinson's Disease-Mild Cognitive Impairment

Quentin Devignes, Cecile Bordier, Romain Viard, Luc Defebvre, Gregory Kuchcinski, Albert F. G. Leentjens, Renaud Lopes, Kathy Dujardin

Summary: The dual syndrome hypothesis in mild cognitive impairment (MCI) in Parkinson's disease distinguishes between frontostriatal and posterior cortical subtypes, and this study found specific changes in resting-state functional connectivity associated with these subtypes. Patients with posterior cortical deficits showed increased functional connectivity within the basal ganglia network, while patients with frontostriatal deficits showed reduced inter-network connectivity compared to healthy controls and patients with normal cognition or a posterior cortical subtype.

MOVEMENT DISORDERS (2022)

Article Medicine, Research & Experimental

Surgical and Hardware-Related Adverse Events of Deep Brain Stimulation: A Ten-Year-Center Experience

Tim A. M. Bouwens van der Vlis, Megan M. G. H. van de Veerdonk, Linda Ackermans, Albert F. G. Leentjens, Marcus L. F. Janssen, Mark L. Kuijf, Koen R. J. Schruers, Annelien Duits, Felix Gubler, Pieter Kubben, Yasin Temel

Summary: This study retrospectively analyzed adverse events (AEs) of deep brain stimulation (DBS) procedures and found that surgical site infections and wire tethering were the most common AEs. However, major AEs requiring aggressive treatment were rare. A uniform reporting system for surgical and hardware-related AEs in DBS surgery would be useful.

NEUROMODULATION (2022)

Article Clinical Neurology

Anxiety in Parkinson?s disease: A resting-state high density EEG study

Nacim Betrouni, Edouard Alazard, Madli Bayot, Guillaume Carey, Philippe Derambure, Luc Defebvre, Albert Fg Leentjens, Arnaud Delval, Kathy Dujardin

Summary: Through high density electroencephalography (hd-EEG) recordings and comparisons in 108 Parkinson's disease patients, it was found that patients with anxiety symptoms had lower relative power in the alpha1 frequency band in the right prefrontal cortex, and showed different characteristics in functional connectivity compared to those without anxiety.

NEUROPHYSIOLOGIE CLINIQUE-CLINICAL NEUROPHYSIOLOGY (2022)

Article Critical Care Medicine

The Montreal Cognitive Assessment is a valid cognitive screening tool for cardiac arrest survivors

Pauline van Gils, Caroline van Heugten, Jeannette Hofmeijer, Hanneke Keijzer, Sjoukje Nutma, Annelien Duits

Summary: This study examines the diagnostic value of the Montreal Cognitive Assessment (MoCA) in patients after out-of-hospital cardiac arrest (OHCA). The results show that the MoCA has good sensitivity and adequate specificity in identifying cognitive impairment, with a high negative predictive value.

RESUSCITATION (2022)

Article Behavioral Sciences

The frontostriatal subtype of mild cognitive impairment in Parkinson's disease, but not the posterior cortical one, is associated with specific EEG alterations

Nacim Betrouni, Quentin Devignes, Madli Bayot, Philippe Derambure, Luc Defebvre, Albert FG. Leentjens, Arnaud Delval, Kathy Dujardin

Summary: This study investigates EEG modifications associated with mild cognitive impairment in Parkinson's disease (PD-MCI) subtypes. The results show that patients with a frontostriatal subtype exhibit spectral and functional EEG alterations, while the posterior cortical subtype does not differ significantly from the normal cognition group. This study provides evidence for the dual syndrome hypothesis and highlights the importance of identifying PD-MCI subtypes.

CORTEX (2022)

Article Neurosciences

Heterogeneity of PD-MCI in Candidates to Subthalamic Deep Brain Stimulation: Associated Cortical and Subcortical Modifications

Quentin Devignes, Sami Daoudi, Romain Viard, Renaud Lopes, Nacim Betrouni, Gregory Kuchcinski, Anne-Sophie Rolland, Caroline Moreau, Luc Defebvre, Eric Bardinet, Marie Bonnet, Christine Brefel-Courbon, Christine Delmaire, Fouzia El Mountassir, Frederique Fluchere, Anne Fradet, Caroline Giordana, Elodie Hainque, Jean-Francois Houvenaghel, Bechir Jarraya, Helene Klinger, David Maltete, Ana Marques, Mylene Meyer, Olivier Rascol, Tiphaine Rouaud, Melissa Tir, Thomas Wirth, Jean-Christophe Corvol, David Devos, Kathy Dujardin

Summary: The study found that a significant proportion of candidates for subthalamic deep brain stimulation (STN-DBS) have Parkinson's disease mild cognitive impairment (PD-MCI), which is associated with cortical and subcortical alterations. Among the PD-MCI subtypes, patients with posterior cortical deficits (PD-PC) had lower global efficiency and worse performance on visuospatial functions, episodic memory, and language, suggesting a higher risk of dementia. There were no significant differences between the PD-MCI subtypes.

JOURNAL OF PARKINSONS DISEASE (2022)

Article Psychology, Clinical

Couples facing the honeymoon period of Parkinson's disease: A qualitative study of dyadic functioning

Charlotte Manceau, Emilie Constant, Elodie Brugalle, Emilie Wawrziczny, Celine Sokolowski, Berengere Flinois, Guillaume Baille, Luc Defebvre, Kathy Dujardin, Pascal Antoine

Summary: This qualitative study aims to understand the experience and functioning of couples during the honeymoon period of Parkinson's disease. The results highlight different dynamics between couples, with some adjusting flexibly and positively while others oscillate between rigid hyperprotection and control/avoidance.

BRITISH JOURNAL OF HEALTH PSYCHOLOGY (2023)

Article Clinical Neurology

Brain network characteristics and cognitive performance in motor subtypes of Parkinson?s disease: A resting state fMRI study

Amee F. Wolters, Stijn Michielse, Mark L. Kuijf, Luc Defebvre, Renaud Lopes, Kathy Dujardin, Albert F. G. Leentjens

Summary: This study compared cognitive and brain network connectivity differences between different subtypes of Parkinson's disease. While the PIGD subtype performed worse in cognitive domains compared to the TD subtype, there were no significant differences in brain network connectivity between the two subtypes.

PARKINSONISM & RELATED DISORDERS (2022)

Article Neurosciences

Machine learning-based prediction of cognitive outcomes in de novo Parkinson's disease

Joshua Harvey, Rick A. Reijnders, Rachel Cavill, Annelien Duits, Sebastian Kohler, Lars Eijssen, Bart P. F. Rutten, Gemma Shireby, Ali Torkamani, Byron Creese, Albert F. G. Leentjens, Katie Lunnon, Ehsan Pishva

Summary: This study aimed to predict cognitive outcomes in Parkinson's disease patients using machine learning models. The research found that clinical variables performed best in predicting cognitive impairment outcomes, and including biofluid and genetic/epigenetic variables slightly improved prediction performance.

NPJ PARKINSONS DISEASE (2022)

Article Psychology

The impact of deep brain stimulation of the subthalamic nucleus on facial emotion recognition in patients with Parkinson's disease

Annelien A. Duits, Eva M. de Ronde, R. Saman Vinke, Sandra H. Vos, Rianne A. J. Esselink, Roy P. C. Kessels

Summary: Deep brain stimulation of the subthalamic nucleus in patients with Parkinson's disease may not affect facial emotion recognition 1 year after surgery, according to a study of 59 patients with pre- and postoperative assessments. However, it does not rule out the potential impact of facial emotion recognition on the outcome of the surgery.

JOURNAL OF NEUROPSYCHOLOGY (2023)

Article Geriatrics & Gerontology

Facilitators and barriers in caring for a person with Huntington's disease: input for a remote support program

Maud M. J. Daemen, Lizzy M. M. Boots, Mayke Oosterloo, Marjolein E. de Vugt, Annelien A. Duits

Summary: This study aims to provide insight into the challenges and facilitators HD caregivers face and their needs for a remote support program. The study found that caregivers face a paradox between self-care and caring for others, and challenges such as lack of HD awareness, taboo and shame, loneliness, concerns about heredity and children, and coping with HD symptoms. The study also identified facilitators such as social networks, professional support, openness, early communication, and daily structure. The findings will be used to develop a blended and self-management remote support program to empower caregivers.

AGING & MENTAL HEALTH (2023)

Meeting Abstract Clinical Neurology

HUNTINGTON PARTNER IN BALANCE: AN ONLINE SELF-MANAGEMENT PROGRAM FOR CAREGIVERS OF PEOPLE WITH HUNTINGTON'S DISEASE

Maud Daemen, Lizzy Boots, Annelien Duits, Mayke Oosterloo, Marjolein de Vugt

JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY (2022)

No Data Available