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Iverson GL, Gardner AJ, Castellani RJ, Kissinger-Knox A. Applying the Consensus Criteria for Traumatic Encephalopathy Syndrome Retrospectively to Case Studies of Boxers from the 20th Century. Neurotrauma Rep 2024; 5:337-347. [PMID: 38595792 PMCID: PMC11002329 DOI: 10.1089/neur.2023.0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024] Open
Abstract
There are no validated diagnostic criteria for traumatic encephalopathy syndrome (TES). During the early and middle 20th century, TES was described as a clinical condition that was experienced by some high-exposure boxers-and it was believed to reflect chronic traumatic brain injury. Consensus criteria for the diagnosis of TES were published in 2021. We applied the consensus criteria for TES retrospectively to cases of chronic brain damage in boxers described in articles published in the 20th century that were obtained from narrative and systematic reviews. The sample included 157 boxers identified in 21 articles published between 1929 and 1999. Two authors reviewed each case description and coded the criteria for TES. For the core clinical features, cognitive impairment was noted in 63.1%, and in 28.7% of cases the person's cognitive functioning appeared to be broadly normal. Neurobehavioral dysregulation was present in 25.5%. One third (34.4%) were identified as progressive, 30.6% were not progressive, and the course could not be clearly determined in 35.0%. In total, 29.9% met the TES consensus criteria, 28.0% did not, and 42.0% had insufficient information to make a diagnostic determination. TES, in the 20th century, was described as a neurological condition, not a psychiatric disorder-and this supports the decision of the 2021 consensus group to remove primary and secondary psychiatric diagnoses from being a core diagnostic feature. Future research is needed to determine whether, or the extent to which, cognitive impairment or neurobehavioral dysregulation described as characterizing TES are associated with chronic traumatic encephalopathy neuropathological change.
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Affiliation(s)
- Grant L. Iverson
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts, USA
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
- Department of Physical Medicine and Rehabilitation, Schoen Adams Research Institute at Spaulding Rehabilitation, Charlestown, Massachusetts, USA
- Sports Concussion Program, Mass General for Children, Boston, Massachusetts, USA
- Home Base, A Red Sox Foundation and Massachusetts General Hospital Program, Charlestown, Massachusetts, USA
| | - Andrew J. Gardner
- Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
| | - Rudolph J. Castellani
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alicia Kissinger-Knox
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts, USA
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
- Sports Concussion Program, Mass General for Children, Boston, Massachusetts, USA
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Angelopoulou E, Bougea A, Hatzimanolis A, Stefanis L, Scarmeas N, Papageorgiou S. Mild Behavioral Impairment in Parkinson's Disease: An Updated Review on the Clinical, Genetic, Neuroanatomical, and Pathophysiological Aspects. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:115. [PMID: 38256375 PMCID: PMC10820007 DOI: 10.3390/medicina60010115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 12/30/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Abstract
Neuropsychiatric symptoms (NPS), including depression, anxiety, apathy, visual hallucinations, and impulse control disorders, are very common during the course of Parkinson's disease (PD), occurring even at the prodromal and premotor stages. Mild behavioral impairment (MBI) represents a recently described neurobehavioral syndrome, characterized by the emergence of persistent and impactful NPS in later life, reflecting arisk of dementia. Accumulating evidence suggests that MBI is highly prevalent in non-demented patients with PD, also being associated with an advanced disease stage, more severe motor deficits, as well as global and multiple-domain cognitive impairment. Neuroimaging studies have revealed that MBI in patients with PD may be related todistinct patterns of brain atrophy, altered neuronal connectivity, and distribution of dopamine transporter (DAT) depletion, shedding more light on its pathophysiological background. Genetic studies in PD patients have also shown that specific single-nucleotide polymorphisms (SNPs) may be associated with MBI, paving the way for future research in this field. In this review, we summarize and critically discuss the emerging evidence on the frequency, associated clinical and genetic factors, as well as neuroanatomical and neurophysiological correlates of MBI in PD, aiming to elucidate the underlying pathophysiology and its potential role as an early "marker" of cognitive decline, particularly in this population. In addition, we aim to identify research gaps, and propose novel relative areas of interest that could aid in our better understanding of the relationship of this newly defined diagnostic entity with PD.
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Affiliation(s)
- Efthalia Angelopoulou
- Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.A.); (L.S.); (N.S.); (S.P.)
| | - Anastasia Bougea
- Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.A.); (L.S.); (N.S.); (S.P.)
| | - Alexandros Hatzimanolis
- Department of Psychiatry, Aiginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece;
| | - Leonidas Stefanis
- Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.A.); (L.S.); (N.S.); (S.P.)
| | - Nikolaos Scarmeas
- Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.A.); (L.S.); (N.S.); (S.P.)
- Department of Neurology, Columbia University, New York, NY 10032, USA
| | - Sokratis Papageorgiou
- Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.A.); (L.S.); (N.S.); (S.P.)
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Cozza M, Boccardi V. A narrative review on mild behavioural impairment: an exploration into its scientific perspectives. Aging Clin Exp Res 2023; 35:1807-1821. [PMID: 37392350 DOI: 10.1007/s40520-023-02472-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/06/2023] [Indexed: 07/03/2023]
Abstract
In clinical practice, the admission of patients with late-onset psychological and behavioural symptoms is frequent, regardless of the presence or absence of cognitive decline. These symptoms commonly occur in the prodromal stage of dementia and can precede the onset of dementia. While the concept of Mild Cognitive Impairment (MCI) -which is defined as a level of cognitive impairment insufficient to impact daily functioning- is well established, the notion of Mild Behavioural Impairment (MBI) is not yet widely recognized. However, studies have demonstrated that the presence of MBI in both cognitively normal patients and individuals with MCI is associated with an increased risk of dementia progression. Thus, MBI may serve as a neurobehavioral indicator of pre-dementia risk states. This narrative review aims to discuss the evolution of the term, the relevant clinical aspects, and potential biomarkers that may contribute to the clinical definition of MBI. The objective is to assist clinicians in recognizing the diagnosis and differentiating it from psychiatric syndromes, as well as identifying possible etiologies of neurodegeneration.
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Affiliation(s)
- Mariagiovanna Cozza
- Department of Integration, Intermediate Care Programme, AUSL Bologna, Bologna, Italy
| | - Virginia Boccardi
- Institute of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Santa Maria della Misericordia Hospital, Piazzale Gambuli 1, 06132, Perugia, Italy.
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Combining quantitative susceptibility mapping to radiomics in diagnosing Parkinson’s disease and assessing cognitive impairment. Eur Radiol 2022; 32:6992-7003. [DOI: 10.1007/s00330-022-08790-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 03/18/2022] [Accepted: 04/01/2022] [Indexed: 11/04/2022]
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Liu H, Deng B, Xie F, Yang X, Xie Z, Chen Y, Yang Z, Huang X, Zhu S, Wang Q. The influence of white matter hyperintensity on cognitive impairment in Parkinson's disease. Ann Clin Transl Neurol 2021; 8:1917-1934. [PMID: 34310081 PMCID: PMC8419402 DOI: 10.1002/acn3.51429] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/05/2021] [Accepted: 07/02/2021] [Indexed: 01/11/2023] Open
Abstract
The aim of this meta‐analysis was to review systematically and to identify the relationship between the severity and location of white matter hyperintensities (WMHs) and the degree of cognitive decline in patients with Parkinson’s disease (PD). We searched the PubMed, EMBASE, Web of Science, Ovid, and Cochrane Library databases for clinical trials of the severity and location of WMHs on the degree of cognitive impairment in PD through October 2020. We conducted the survey to compare the association of WMH burden in patients with PD with mild cognitive impairment (PD‐MCI) versus those with normal cognition (PD‐NC) and in patients with PD with dementia (PDD) versus those with PD without dementia (PD‐ND). Nine studies with PD‐MCI versus PD‐NC and 10 studies with PDD versus PD‐ND comparisons were included. The WMH burden in PD‐MCI patients was significantly different compared to that in PD‐NC patients (standard mean difference, SMD = 0.39, 95% CI: 0.12 to 0.66, p = 0.005), while there was no correlation shown in the age‐matched subgroup of the comparison. In addition, PDD patients had a significantly higher burden of WMHs (SMD = 0.8, 95% CI: 0.44 to 1.71, p < 0.0001), especially deep white matter hyperintensities (SMD = 0.54, 95% CI: 0.36 to 0.73, p < 0.00001) and periventricular hyperintensities (SMD = 0.70, 95% CI: 0.36 to 1.04, p < 0.0001), than PD‐NC patients, regardless of the adjustment of age. WMHs might be imaging markers for cognitive impairment in PDD but not in PD‐MCI, regardless of age, vascular risk factors, or race. Further prospective studies are needed to validate the conclusions.
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Affiliation(s)
- Hailing Liu
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China.,Department of Neurology, Maoming People's Hospital, Maoming, Guangdong, China
| | - Bin Deng
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Fen Xie
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Xiaohua Yang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Zhenchao Xie
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Yonghua Chen
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Zhi Yang
- Department of Neurology, Maoming People's Hospital, Maoming, Guangdong, China
| | - Xiyan Huang
- Department of Rehabilitation, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Shuzhen Zhu
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
| | - Qing Wang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, 510282, P.R. China
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Jin Yoon E, Ismail Z, Kathol I, Kibreab M, Hammer T, Lang S, Ramezani M, Auclair-Ouellet N, Sarna JR, Martino D, Furtado S, Monchi O. Patterns of brain activity during a set-shifting task linked to mild behavioral impairment in Parkinson's disease. NEUROIMAGE-CLINICAL 2021; 30:102590. [PMID: 33640685 PMCID: PMC7907973 DOI: 10.1016/j.nicl.2021.102590] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/24/2020] [Accepted: 02/03/2021] [Indexed: 11/15/2022]
Abstract
PD with mild behavioral impairment revealed deficits in cognitive flexibility. Brain activities during a set-shifting task linked with MBI in PD was evaluated. PD-MBI revealed reduced activity in the prefrontal and posterior parietal cortices. The prefrontal activity was associated with cognitive impairment in PD-MBI. High MBI-C score was associated with reduced deactivation in the hippocampus.
Mild behavioral impairment (MBI) is a neurobehavioral syndrome characterized by later life emergence of sustained neuropsychiatric symptoms, as an at-risk state for incident cognitive decline and dementia. Prior studies have reported that neuropsychiatric symptoms are associated with cognitive abilities in Parkinson’s disease (PD) patients, and we have recently found a strong correlation between MBI and cognitive performance. However, the underlying neural activity patterns of cognitive performance linked to MBI in PD are unknown. Fifty-nine non-demented PD patients and 26 healthy controls were scanned using fMRI during performance of a modified version of the Wisconsin card sorting task. MBI was evaluated using the MBI-checklist, and PD patients were divided into two groups, PD-MBI and PD-noMBI. Compared to the PD-noMBI group and healthy controls, the PD-MBI group revealed less activation in the prefrontal and posterior parietal cortices, and reduced deactivation in the medial temporal region. These results suggest that in PD, MBI reflects deficits in the frontoparietal control network and the hippocampal memory system.
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Affiliation(s)
- Eun Jin Yoon
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Zahinoor Ismail
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada; Departments of Psychiatry and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Iris Kathol
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Mekale Kibreab
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Tracy Hammer
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Stefan Lang
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Mehrafarin Ramezani
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | | | - Justyna R Sarna
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Davide Martino
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Sarah Furtado
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Oury Monchi
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, Canada; Department of Radiology, University of Calgary, Calgary, Alberta, Canada.
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7
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Luca A, Monastero R, Baschi R, Cicero CE, Mostile G, Davì M, Restivo V, Zappia M, Nicoletti A. Cognitive impairment and levodopa induced dyskinesia in Parkinson's disease: a longitudinal study from the PACOS cohort. Sci Rep 2021; 11:867. [PMID: 33441571 PMCID: PMC7806828 DOI: 10.1038/s41598-020-79110-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/02/2020] [Indexed: 11/09/2022] Open
Abstract
Aim of the study was to evaluate possible associations between cognitive dysfunctions and development of Levodopa Induced Dyskinesia (LID). PD patients from the Parkinson’s disease Cognitive impairment Study cohort who underwent a baseline and follow-up neuropsychological evaluations were enrolled. Mild Cognitive Impairment (PD-MCI) was diagnosed according to MDS level II criteria. The following cognitive domains were evaluated: episodic memory, attention, executive function, visuo-spatial function and language. A domain was considered as impaired when the subject scored 2 standard deviation below normality cut-off values in at least one test for each domain. Levodopa equivalent dose, UPDRS-ME and LID were recorded at baseline and follow-up. To identify possible neuropsychological predictors associated with the probability of LID development at follow-up, Cox proportional-hazards regression model was used. Out of 139 PD patients enrolled (87 men, mean age 65.7 ± 9.4), 18 (12.9%) were dyskinetic at baseline. Out of 121 patients non-dyskinetic at baseline, 22 (18.1%) developed LID at follow-up. The impairment of the attention and executive domains strongly predicted the development of LID (HR 4.45;95%CI 1.49–13.23 and HR 3.46; 95%CI 1.26–9.48 respectively). Impairment of the attention and executive domains increased the risk of dyskinesia reflecting the alteration of common cortical network.
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Affiliation(s)
- Antonina Luca
- Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, Neurologic Unit, AOU "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia n.78, 95100, Catania, Sicily, Italy
| | - Roberto Monastero
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Via G. La Loggia n.1, Palermo, Sicily, Italy.
| | - Roberta Baschi
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Via G. La Loggia n.1, Palermo, Sicily, Italy
| | - Calogero Edoardo Cicero
- Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, Neurologic Unit, AOU "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia n.78, 95100, Catania, Sicily, Italy
| | - Giovanni Mostile
- Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, Neurologic Unit, AOU "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia n.78, 95100, Catania, Sicily, Italy
| | - Marco Davì
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Via G. La Loggia n.1, Palermo, Sicily, Italy
| | - Vincenzo Restivo
- Department of Sciences for Health Promotion and Mother-Child Care, University of Palermo, Palermo, Italy
| | - Mario Zappia
- Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, Neurologic Unit, AOU "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia n.78, 95100, Catania, Sicily, Italy
| | - Alessandra Nicoletti
- Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, Neurologic Unit, AOU "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia n.78, 95100, Catania, Sicily, Italy.
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Clinical and Striatal Dopamine Transporter Predictors of Mild Behavioral Impairment in Drug-Naive Parkinson Disease. Clin Nucl Med 2020; 45:e463-e468. [PMID: 32956117 DOI: 10.1097/rlu.0000000000003281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Neuropsychiatric symptoms are important and frequent nonmotor features in Parkinson disease (PD). We explored mild behavioral impairment (MBI) in drug-naive patients with PD and its clinical and dopamine transporter (DAT) correlates. METHODS We recruited 275 drug-naive patients with PD who had undergone Unified Parkinson's Disease Rating Scale, a neuropsychological battery, Neuropsychiatric Inventory, and N-(3-[F]fluoropropyl)-2β-carbon ethoxy-3β-(4-iodophenyl) PET within 6 months. Patients with PD were divided into groups without MBI (PD-MBI-, n = 186) and with MBI (PD-MBI+, n = 89) according to the Neuropsychiatric Inventory. We performed comparative analysis of DAT availability, cognitive function, and motor deficits between the groups. RESULTS Mild behavioral impairment was found in 32.4% of PD patients at the time of diagnosis, and affective dysregulation and decreased motivation were the 2 most common neuropsychiatric domains. Dopamine transporter availability in the anterior caudate (odds ratio, 0.60; P = 0.016) and anterior putamen (odds ratio, 0.58; P = 0.008) was associated with the development of MBI in PD. PD-MBI+ group had a lower z-score in memory-related tests and Stroop color reading test than PD-MBI- group. PD-MBI+ group had a higher Unified Parkinson's Disease Rating Scale motor score after controlling for DAT availability in the posterior putamen than PD-MBI- group (P = 0.007). CONCLUSIONS This study suggests that early behavioral impairment is associated with more pathological involvement in the anterior striatum, memory and frontal dysfunction, and motor deficits, which could be regarded as a different phenotype in PD.
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Bateman DR, Gill S, Hu S, Foster ED, Ruthirakuhan MT, Sellek AF, Mortby ME, Matušková V, Ng KP, Tarawneh RM, Freund-Levi Y, Kumar S, Gauthier S, Rosenberg PB, Ferreira de Oliveira F, Devanand DP, Ballard C, Ismail Z. Agitation and impulsivity in mid and late life as possible risk markers for incident dementia. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2020; 6:e12016. [PMID: 32995467 PMCID: PMC7507499 DOI: 10.1002/trc2.12016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 02/17/2020] [Indexed: 12/14/2022]
Abstract
To identify knowledge gaps regarding new-onset agitation and impulsivity prior to onset of cognitive impairment or dementia the International Society to Advance Alzheimer's Research and Treatment Neuropsychiatric Syndromes (NPS) Professional Interest Area conducted a scoping review. Extending a series of reviews exploring the pre-dementia risk syndrome Mild Behavioral Impairment (MBI), we focused on late-onset agitation and impulsivity (the MBI impulse dyscontrol domain) and risk of incident cognitive decline and dementia. This scoping review of agitation and impulsivity pre-dementia syndromes summarizes the current biomedical literature in terms of epidemiology, diagnosis and measurement, neurobiology, neuroimaging, biomarkers, course and prognosis, treatment, and ongoing clinical trials. Validations for pre-dementia scales such as the MBI Checklist, and incorporation into longitudinal and intervention trials, are needed to better understand impulse dyscontrol as a risk factor for mild cognitive impairment and dementia.
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Affiliation(s)
- Daniel R Bateman
- Department of Psychiatry Indiana University School of Medicine Indianapolis Indiana
- Indiana University Center for Aging Research Regenstrief Institute Indianapolis Indiana
| | - Sascha Gill
- Department of Clinical Neurosciences; and the Ron and Rene Ward Centre for Healthy Brain Aging Research; Hotchkiss Brain Institute University of Calgary Calgary Alberta Canada
| | - Sophie Hu
- Community Health Sciences, and O'Brien Institute for Public Health University of Calgary Calgary Alberta Canada
| | - Erin D Foster
- Ruth Lilly Medical Library Indiana University School of Medicine Indianapolis Indiana
- University of California Berkeley Berkeley CA
| | - Myuri T Ruthirakuhan
- Hurvitz Brain Sciences Research Program Sunnybrook Research Institute Toronto Ontario Canada
- Department of Pharmacology and Toxicology University of Toronto Ontario Canada
| | | | - Moyra E Mortby
- School of Psychology University of New South Wales Sydney New South Wales Australia
- Neuroscience Research Australia University of New South Wales Sydney New South Wales Australia
| | - Veronika Matušková
- International Clinical Research Center St. Anne's University Hospital Brno Brno Czech Republic
- Memory Disorders Clinic, Department of Neurology, 2nd Faculty of Medicine Charles University in Prague and Motol University Hospital Prague Czech Republic
| | - Kok Pin Ng
- Department of Neurology National Neuroscience Institute Singapore Singapore
| | - Rawan M Tarawneh
- Department of Neurology, College of Medicine The Ohio State University Columbus Ohio USA
| | - Yvonne Freund-Levi
- Center for Alzheimer Research, Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society Karolinska Institute Stockholm Sweden
- School of Medical Sciences Örebro University Örebro Sweden
| | - Sanjeev Kumar
- Centre for Addiction and Mental Health Toronto Ontario Canada
- Department of Psychiatry University of Toronto Ontario Canada
| | - Serge Gauthier
- McGill Center for Studies in Aging McGill University Montreal Quebec Canada
| | - Paul B Rosenberg
- Division of Geriatric Psychiatry and Neuropsychiatry, Department of Psychiatry and Behavioral, Sciences Johns Hopkins University School of Medicine Baltimore Maryland
| | - Fabricio Ferreira de Oliveira
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina Federal University of São Paulo (UNIFESP), São Paulo São Paulo Brazil
| | - D P Devanand
- New York State Psychiatric Institute and Department of Psychiatry and Department of Psychiatry, College of Physicians and Surgeons Columbia University New York New York
| | - Clive Ballard
- College of Medicine and Health The University of Exeter Exeter UK
| | - Zahinoor Ismail
- Department of Clinical Neurosciences; and the Ron and Rene Ward Centre for Healthy Brain Aging Research; Hotchkiss Brain Institute University of Calgary Calgary Alberta Canada
- Community Health Sciences, and O'Brien Institute for Public Health University of Calgary Calgary Alberta Canada
- Department of Psychiatry, and the Mathison Centre for Mental Health Research & Education Cumming School of Medicine, University of Calgary Calgary Alberta Canada
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Vascular risk factors, white matter lesions and cognitive impairment in Parkinson's disease: the PACOS longitudinal study. J Neurol 2020; 268:549-558. [PMID: 32865628 PMCID: PMC7880923 DOI: 10.1007/s00415-020-10189-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/18/2020] [Accepted: 08/24/2020] [Indexed: 11/24/2022]
Abstract
Background Vascular risk factors (VRFs) may be associated with cognitive decline in early Parkinson’s disease (PD) but results are inconclusive. The identification of modifiable risk factors is relevant for prevention and treatment. Methods Parkinson’s disease (PD) patients of the PACOS cohort who underwent a baseline and follow-up neuropsychological evaluation were enrolled in the study. PD with Mild Cognitive Impairment (MCI) and dementia (PDD) were diagnosed according to the MDS criteria. A Baseline 1.5 T brain MRI was used to calculate the white matter lesions (WMLs) burden using the Wahlund visual scale. Laboratory data, presence of hypertension, diabetes and use of anti-hypertensive drugs were collected and the Framingham Risk (FR) score was calculated. VRFs predicting PD-MCI and PDD were evaluated using Cox proportional hazard regression model. Results Out of 139 enrolled patients, 84 (60.4%) were classified as normal cognition (NC) and 55 (39.6%) as MCI at baseline. At follow-up 28 (33.3%) PD-NC developed MCI and 4 (4.8%) PDD (follow-up time 23.5 ± 10.3 months). Out of 55 PD-MCI patients at baseline, 14 (25.4%) converted to PDD. At multivariate analysis among PD-NC a systolic blood pressure (SBP) > 140 mmHg was the stronger predictor of MCI (adjHR 4.04; 95% CI 1.41–11.3) while the presence of MCI at baseline (adj HR 7.55; 95% CI 1.76–32.3) and a severe WMLs burden (adj HR 2.80; 95% CI 0.86–9.04) were the strongest predictors of PDD, even if this latter association has a trend towards significance. Conclusion Hypertension represents the most important modifiable risk factor for PD-MCI in the PACOS cohort, increasing the risk of about four times.
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Lang S, Yoon EJ, Kibreab M, Kathol I, Cheetham J, Hammer T, Sarna J, Ismail Z, Monchi O. Mild behavioral impairment in Parkinson's disease is associated with altered corticostriatal connectivity. NEUROIMAGE-CLINICAL 2020; 26:102252. [PMID: 32279019 PMCID: PMC7152681 DOI: 10.1016/j.nicl.2020.102252] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/03/2020] [Accepted: 03/20/2020] [Indexed: 12/27/2022]
Abstract
Mild behavioral impairment in PD is linked to altered corticostriatal connectivity. PD-MBI have less connectivity between the striatum and the DMN. PD-MBI have increased atrophy of the SAN. Caudate head and dorsal putamen connectivity is related to MBI-C scores in PD. Caudate head-precuneus connectivity is linked to both MBI and MoCA scores.
Background Mild behavioral impairment (MBI) is a syndrome characterized by later life onset, sustained neuropsychiatric symptoms as a marker of dementia risk. In Parkinson's disease (PD), MBI has been associated with worse cognitive abilities and increased cortical atrophy. However, the circuit level correlates of MBI have not been investigated in this population. Our objective was to investigate the relationship between MBI and corticostriatal connectivity in PD patients. This emphasis on corticostriatal connectivity was due to the significant role of these circuits in neuropsychiatric and cognitive symptoms across disease conditions. Methods Seventy-four non-demented patients with PD were administered the MBI-checklist, and classified as having high MBI (PD-MBI; n = 21) or low MBI scores (PD-noMBI; n = 53). Corticostriatal connectivity was assessed with both an atlas and seed-based analysis. The atlas analysis consisted of calculating the average connectivity between the striatal network and the default mode (DMN), central executive (CEN), and saliency networks (SAN). Structural measurements of cortical thickness and volume were also assessed. PD-MBI and PD-noMBI patients were compared, along with a group of age matched healthy control subjects (HC; n = 28). Subsequently, a seed analysis assessed the relationship of MBI scores with the connectivity of twelve seeds within the striatum while controlling for cognitive ability. A complementary analysis assessed the relationship between striatal connectivity and cognition, while controlling for MBI-C. Results PD-MBI demonstrated decreased connectivity between the striatum and both the DMN and SAN compared to PD-noMBI and HC. The decreased connectivity between the striatum and the SAN was explained partly by increased atrophy within the SAN in PD-MBI. The seed analysis revealed a relationship between higher MBI scores and lower connectivity of the left caudate head to the dorsal anterior cingulate cortex and left middle frontal gyrus. Higher MBI-C scores were also related to decreased connectivity of the right caudate head with the anterior cingulate cortex, precuneus, and left supramarginal gyrus, as well as increased connectivity to the left hippocampus and right cerebellar hemisphere. Caudate-precuneus connectivity was independently associated with both global behavioural and cognitive scores. Conclusion These results suggest PD-MBI is associated with altered corticostriatal connectivity, particularly between the head of the caudate and cortical regions associated with the DMN and SAN. In particular, caudate-precuneus connectivity is associated with both global behavioral and cognitive symptoms in PD.
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Affiliation(s)
- Stefan Lang
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Eun Jin Yoon
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Mekale Kibreab
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Iris Kathol
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jenelle Cheetham
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tracy Hammer
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Justyna Sarna
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Zahinoor Ismail
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada; Department of Psychiatry, University of Calgary, Calgary, AB, Canada; Mathison Center for Brain and Mental Health Research, University of Calgary, Calgary, Canada
| | - Oury Monchi
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada; Department of Radiology, University of Calgary, Calgary, AB, Canada.
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