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Vigneswaran C, Nair SS, Chakravarthy VS. A Basal Ganglia model for understanding working memory functions in healthy and Parkinson's conditions. Cogn Neurodyn 2024; 18:1913-1929. [PMID: 39104688 PMCID: PMC11297868 DOI: 10.1007/s11571-023-10056-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/28/2023] [Accepted: 12/11/2023] [Indexed: 08/07/2024] Open
Abstract
Working memory (WM) is considered as the scratchpad for reading, writing, and processing information necessary to perform cognitive tasks. The Basal Ganglia (BG) and Prefrontal Cortex are two important parts of the brain that are involved in WM functions, and both structures receive projections from dopaminergic nuclei. In this modelling study, we specifically focus on modelling the WM functions of the BG, the WM deficits in Parkinson's disease (PD) conditions, and the impact of dopamine deficiency on different kinds of WM functions. Though there are many experimental and modelling studies of WM properties, there is a paucity of models of the BG that provide insights into the contributions of the BG in WM functions. The proposed model of BG uses bistable flip-flop neurons to model striatal up-down neurons, a network of nonlinear oscillators to model the oscillations of the Indirect Pathway of BG and race-model for action selection. Five different WM tasks are used to demonstrate the generalisation ability of the proposed model. Experimental data from the four tasks are compared with model performance in both control and PD conditions. The model is extended to predict the response time of subjects and in the PD version of the model, the effect of dopaminergic medication on WM performance is also simulated. The proposed model of BG is a unified model that can explain the WM functions of the BG over a wide variety of tasks in both normal and PD conditions, and can be used to understand why specific WM functions are impaired whereas others remain intact in PD. Supplementary Information The online version contains supplementary material available at 10.1007/s11571-023-10056-y.
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Affiliation(s)
- C. Vigneswaran
- Department of Biotechnology, Bhupat and Mehta Jyoti School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu India
| | - Sandeep Sathyanandan Nair
- Department of Biotechnology, Bhupat and Mehta Jyoti School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu India
| | - V. Srinivasa Chakravarthy
- Department of Biotechnology, Bhupat and Mehta Jyoti School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu India
- Department of Medical Science and Technology, Indian Institute of Technology Madras, Sardar Patel Road, Adyar, Chennai, 600036 Tamil Nadu India
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Gates K, Knowles T, Mach H, Higginbotham J. Clinical Insights Into the Use of Speech Amplification Devices for Managing Hypophonia: Interviews With Speech-Language Pathologists. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2024; 33:1639-1661. [PMID: 38512013 DOI: 10.1044/2024_ajslp-23-00396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
PURPOSE The purpose of this qualitative interview study was to identify themes regarding considerations in the usage of speech amplification device usage for people with Parkinson's disease (PD) and hypophonia from the perspective of speech-language pathologists (SLPs). METHOD Eligible participants included SLPs currently practicing in the United States or Canada with experience working with clients with PD for at least 2 years. Ten SLPs participated in 60-min interviews conducted via Zoom. A semistructured interview guide was created prior to the interviews. The interviews were transcribed following their completion, and an iterative coding process was used to identify themes using thematic analysis. RESULTS Three main themes were identified from the interviews. The first theme encapsulated how clinicians described amplification devices as a potential treatment tool, which highlighted the nuances that may impact selecting an amplification device as a treatment option such as increased hypophonia or dysarthria severity and cognitive decline. The second theme highlighted how device selection depends on the individual needs of the user. Individual client characteristics (such as disease symptoms and individual needs and preferences) may impact the choice of amplification device. The last theme outlined the importance of involving family members in all stages of device use and involving other health care team members on a case-by-case basis. CONCLUSIONS The insights provided by the SLP participants help to understand the clinical decisions that are made when determining device candidacy, selecting a device, and evaluating device success. These insights can be used to improve research studies of augmentative management of hypophonia and guide more personalized management decisions.
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Affiliation(s)
- Kelly Gates
- Department of Communicative Disorders and Sciences, University at Buffalo, NY
| | - Thea Knowles
- Department of Communicative Sciences and Disorders, Michigan State University, East Lansing
| | - Helen Mach
- Department of Communication Sciences and Disorders, University of Delaware, Newark
| | - Jeff Higginbotham
- Department of Communicative Disorders and Sciences, University at Buffalo, NY
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Hamed SA, Hadad AFE. The effect of anticholinergic drugs on cognition of patients with Parkinson's disease: a cohort study from the Egyptian population. Expert Rev Clin Pharmacol 2024:1-11. [PMID: 38781022 DOI: 10.1080/17512433.2024.2359955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/22/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Cognitive dysfunction is a non-motor manifestation of Parkinson's disease (PD). We aimed to determine the frequency and patterns of cognitive dysfunction in treated patients with PD and their predictors. RESEARCH DESIGN AND METHODS This study included 80 patients (male = 48; female = 32) and 30 healthy individuals. They underwent neuropsychiatric evaluations. Measurements included Beck's depression inventory - II (BDI-II), mini-mental state examination (MMSE) and Montreal cognitive assessment (MoCA). RESULTS Patients had mean age of 55.56 ± 9.06 yrs, duration of PD of 4.86 ± 2.71 yrs and Hoehn and Yahr Scoring of 2.19 ± 0.89. They were on levodopa/carbidopa therapy and adjuvant therapy with benztropine mesylate, an anticholinergic drug, (n = 51) or amantadine sulfate, a dopaminergic drug, (n = 29). Sixteen (20%) had moderate depressive symptoms. Mild and moderate cognitive impairments were reported in 38.8% and 28.8% (by MMSE) and 46.3% and 31.3% (by MoCA). Patients had lower global cognitive scoring (p = 0.0001) and scorings of different cognitive functions (naming, attention, language, abstraction, memory and orientation) than controls. Patients treated with benztropine had lower cognition than with amantadine. Correlation analyses showed that lower cognition was only associated with chronic PD and its treatment (p = 0.0001). CONCLUSIONS Cognitive dysfunction is common with PD (77.5%) particularly with anticholinergic drugs. De-prescription of anticholinergics is recommended for patients with PD.
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Affiliation(s)
- Sherifa Ahmed Hamed
- Department of Neurology and Psychiatry, Assiut University Hospital, Assiut, Egypt
| | - Ali Farrag El Hadad
- Department of Neurology and Psychiatry, Al Azhar University Hospital, Assiut, Egypt
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Gould SA, Hodgson A, Clarke HF, Robbins TW, Roberts AC. Comparative Roles of the Caudate and Putamen in the Serial Order of Behavior: Effects of Striatal Glutamate Receptor Blockade on Variable versus Fixed Spatial Self-Ordered Sequencing in Marmosets. eNeuro 2024; 11:ENEURO.0541-23.2024. [PMID: 38471779 DOI: 10.1523/eneuro.0541-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 03/14/2024] Open
Abstract
Self-ordered sequencing is an important executive function involving planning and executing a series of steps to achieve goal-directed outcomes. The lateral frontal cortex is implicated in this behavior, but downstream striatal outputs remain relatively unexplored. We trained marmosets on a three-stimulus self-ordered spatial sequencing task using a touch-sensitive screen to explore the role of the caudate nucleus and putamen in random and fixed response arrays. By transiently blocking glutamatergic inputs to these regions, using intrastriatal CNQX microinfusions, we demonstrate that the caudate and putamen are both required for, but contribute differently to, flexible and fixed sequencing. CNQX into either the caudate or putamen impaired variable array accuracy, and infusions into both simultaneously elicited greater impairment. We demonstrated that continuous perseverative errors in variable array were caused by putamen infusions, likely due to interference with the putamen's established role in monitoring motor feedback. Caudate infusions, however, did not affect continuous errors, but did cause an upward trend in recurrent perseveration, possibly reflecting interference with the caudate's established role in spatial working memory and goal-directed planning. In contrast to variable array performance, while both caudate and putamen infusions impaired fixed array responding, the combined effects were not additive, suggesting possible competing roles. Infusions into either region individually, but not simultaneously, led to continuous perseveration. Recurrent perseveration in fixed arrays was caused by putamen, but not caudate, infusions. These results are consistent overall with a role of caudate in planning and flexible responding and the putamen in more rigid habitual or automatic responding.
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Affiliation(s)
- Stacey Anne Gould
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3DY, United Kingdom
| | - Amy Hodgson
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3DY, United Kingdom
| | - Hannah F Clarke
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3DY, United Kingdom
| | - Trevor W Robbins
- Department of Psychology, University of Cambridge, Cambridge CB2 3EB, United Kingdom
| | - Angela C Roberts
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3DY, United Kingdom
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Alissa N, Rehan R, Al-Sharman A, Latrous M, Aburub AS, El-Salem K, Morris L, Khalil H. Cognitive status and sleep quality can explain the fear of falling and fall history in people with Parkinson's disease. Int J Rehabil Res 2023; 46:338-343. [PMID: 37581294 DOI: 10.1097/mrr.0000000000000596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Fear of falling (FOF) is highly prevalent in people with Parkinson's disease (PwPD) and contributes to high fall risk. Studies reporting on the relationship between falls, FOF, and non-motor factors such as cognitive function and sleep quality in Parkinson's disease are limited. This study aimed to investigate (1) the relationship of cognitive function and sleep quality with FOF, and history of falls in PwPD; (2) differences in cognitive function and sleep quality between Parkinson's disease fallers and non-fallers; and (3) a cut-off score for cognitive function and sleep quality to discriminate Parkinson's disease fallers from non-fallers. Fifty PwPD were assessed for FOF [Falls Efficacy Scale-International (FES-I)], cognition [Montréal Cognitive Assessment (MOCA)], sleep quality [Pittsburgh Sleep Quality Index (PSQI)], and falls history. The MOCA is significantly associated with FES-I scores ( R2 = 0.429, P < 0.0001). Both MOCA ( P = 0.012) and PSQI ( P = 0.027) were associated with falls history even after adjusting for confounding factors (age, sex, L-dopa use, Parkinson's disease severity). Both MOCA and PSQI scores were able to distinguish fallers from non-fallers with cut-off scores of 15.5 and 7.5, respectively. Although our findings revealed that both cognitive function and sleep quality are important factors influencing falls and FOF in PwPD, it remains to be determined if addressing cognitive impairments and poor sleep quality may favorably impact balance before integrating such screenings into fall prevention programs.
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Affiliation(s)
- Nesreen Alissa
- Department of Physical Therapy and Rehabilitation Science, School of Medicine, University of Maryland, Baltimore, Baltimore, Maryland, USA
| | - Reem Rehan
- Department of Rehabilitation Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Alham Al-Sharman
- Department of Rehabilitation Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
- Department of Physical Therapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Mariem Latrous
- Department of Physical Therapy and Rehabilitation Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Ala' S Aburub
- Department of Rehabilitation Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
- Department of Physiotherapy, Israa University, Amman
| | - Khalid El-Salem
- Department of Neurosciences, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Linzette Morris
- Department of Physical Therapy and Rehabilitation Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hanan Khalil
- Department of Physical Therapy and Rehabilitation Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
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Novikov NI, Brazhnik ES, Kitchigina VF. Pathological Correlates of Cognitive Decline in Parkinson's Disease: From Molecules to Neural Networks. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:1890-1904. [PMID: 38105206 DOI: 10.1134/s0006297923110172] [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: 06/08/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 12/19/2023]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder caused by the death of dopaminergic neurons in the substantia nigra and appearance of protein aggregates (Lewy bodies) consisting predominantly of α-synuclein in neurons. PD is currently recognized as a multisystem disorder characterized by severe motor impairments and various non-motor symptoms. Cognitive decline is one of the most common and worrisome non-motor symptoms. Moderate cognitive impairments (CI) are diagnosed already at the early stages of PD, usually transform into dementia. The main types of CI in PD include executive dysfunction, attention and memory decline, visuospatial impairments, and verbal deficits. According to the published data, the following mechanisms play an essential role demonstrates a crucial importance in the decline of the motor and cognitive functions in PD: (1) changes in the conformational structure of transsynaptic proteins and protein aggregation in presynapses; (2) synaptic transmission impairment; (3) neuroinflammation (pathological activation of the neuroglia); (4) mitochondrial dysfunction and oxidative stress; (5) metabolic disorders (hypometabolism of glucose, dysfunction of glycolipid metabolism; and (6) functional rearrangement of neuronal networks. These changes can lead to the death of dopaminergic cells in the substantia nigra and affect the functioning of other neurotransmitter systems, thus disturbing neuronal networks involved in the transmission of information related to the regulation of motor activity and cognitive functions. Identification of factors causing detrimental changes in PD and methods for their elimination will help in the development of new approaches to the therapy of PD. The goal of this review was to analyze pathological processes that take place in the brain and underlie the onset of cognitive disorders in PD, as well as to describe the impairments of cognitive functions in this disease.
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Affiliation(s)
- Nikolai I Novikov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Elena S Brazhnik
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Valentina F Kitchigina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia.
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Cocuzza A, Difonzo T, Aiello EN, Sbrissa LPE, Zago S, Gendarini C, Sirtori MA, Poletti B, Ticozzi N, Franco G, Di Fonzo A, Comi GP, Saetti MC. Verbal Learning Impairment in Parkinson's Disease: Role of the Frontostriatal System in Working and Strategic Memory. NEURODEGENER DIS 2023; 23:20-24. [PMID: 37757782 DOI: 10.1159/000534307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 09/21/2023] [Indexed: 09/29/2023] Open
Abstract
INTRODUCTION Learning is a long-term memory process, influenced by working memory control processes, including recognition of semantic properties of items by which subjects generate a semantic structure of engrams. The aim of the study was to investigate the verbal learning strategies of individuals with Parkinson's disease (PD). METHODS Thirty individuals with idiopathic PD and healthy control (HC) subjects were tested with a multi-trial word list learning, under two conditions: without cue and then with an explicit cue suggesting the categories in the list, respectively. RESULTS In comparison to HC subjects, individuals with PD recalled fewer words and achieved a reduced number of categorical clusters; the strategical cue did not improve their performance. CONCLUSION This suggests, besides a difficulty in identifying the correct learning strategy, a deficit in working memory, which undermines the strategy implementation.
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Affiliation(s)
- Alessandro Cocuzza
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Teresa Difonzo
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Edoardo Nicolò Aiello
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Luca Pietro Ernesto Sbrissa
- Department of Biomedical Sciences for Health, Institute of Forensic Medicine, University of Milan, Milan, Italy
| | - Stefano Zago
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Claudia Gendarini
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Barbara Poletti
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Nicola Ticozzi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Giulia Franco
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Alessio Di Fonzo
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giacomo Pietro Comi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maria Cristina Saetti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy,
- Neurology Unit, Department of Neuroscience and Mental Health, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy,
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Li Y, Yang J, Evans K, Wong JBW, Dissanayaka NN, Vogel AP. Optimising verbal fluency analysis in neurological patients with dysarthria: examples from Parkinson's disease and hereditary ataxia. J Clin Exp Neuropsychol 2023; 45:452-463. [PMID: 37656122 DOI: 10.1080/13803395.2023.2249172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 08/12/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Verbal fluency tests (VFTs) are widely used to assess cognitive-linguistic performance in neurological diseases. However, the influence of dysarthria on performance in tests requiring oral responses is unclear in ataxia and Parkinson's disease. OBJECTIVES To determine the impact of dysarthria on VFT performance and evaluate the validity and reliability of alternative methods for analyzing VFT data. METHOD Trained raters evaluated dysarthria using VFT recordings in people with ataxia (N = 61) or Parkinson's disease (PD; N = 69). Total Correct Items scores and qualitative parameters (intrusions, ambiguous verbalizations, perseverations, and interjections) were compared across semantic, phonemic, and alternating fluency tasks. Disease severity was considered as a covariate in the regression model. RESULTS VFT dysarthria ratings correlated with the benchmark (ground truth) dysarthria scores derived from a monologue. Ambiguous responses resulting from unclear speech impeded the rater's ability to determine if a response was correct. Regression analysis indicated that more severe dysarthria ratings predicted diminished scores in all three tasks (semantic fluency, phonemic fluency and alternating fluency) in the ataxia group. The contribution of disease severity to semantic, phonemic and alternating fluency was reduced substantially in the ataxia group after accounting for dysarthria severity in the model in both groups. CONCLUSIONS Dysarthria severity can be estimated based on speech samples derived from VFT. Dysarthria can lead to lower total correct items and is associated with more ambiguous verbalizations in VFT. Dysarthria severity should be considered when interpreting VFT performance in common movement disorders.
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Affiliation(s)
- Yanjun Li
- Centre for Neuroscience of Speech, The University of Melbourne, Melbourne, Victoria, Australia
- Redenlab, Melbourne, Victoria, Australia
| | - Jihyun Yang
- UQ Centre for Clinical Research, Faculty of Medicine, the University of Queensland, Herston QLD, Australia
| | - Kristine Evans
- Centre for Neuroscience of Speech, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Nadeeka N Dissanayaka
- UQ Centre for Clinical Research, Faculty of Medicine, the University of Queensland, Herston QLD, Australia
- Department of Neurology, Royal Brisbane & Women's Hospital, Herston QLD, Australia
- School of Psychology, The University of Queensland, St Lucia, QLD, Australia
| | - Adam P Vogel
- Centre for Neuroscience of Speech, The University of Melbourne, Melbourne, Victoria, Australia
- Redenlab, Melbourne, Victoria, Australia
- Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Germany & Center for Neurology, University Hospital Tübingen, Germany
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Fan Z, Fan Z, Li Z, Zhang H, Hu L, Qiu T, Zhu W. Cognitive Performance in Patients With Sporadic Vestibular Schwannoma. Neurosurgery 2023; 93:224-232. [PMID: 36862952 DOI: 10.1227/neu.0000000000002407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 12/12/2022] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND To date, few data are available on the cognitive function of patients with vestibular schwannoma (VS) before treatment. OBJECTIVE To provide a cognitive profile of patients with VS. METHODS This cross-sectional observational study recruited 75 patients with an untreated VS and 60 age-, sex-, and education-matched healthy control subjects. A set of neuropsychological tests were administered to each participant. RESULTS Compared with the matched controls, patients with VS exhibited impaired general cognitive function, memory, psychomotor speed, visuospatial ability, attention and processing speed, and executive function. The subgroup analyses displayed that patients with severe-to-profound unilateral hearing loss were more cognitively impaired than patients with no-to-moderate unilateral hearing loss. In addition, patients with right-sided VS scored worse than those with left-sided VS on tests of memory, attention and processing speed, and executive function. No differences were observed in cognitive performance between patients with or without brainstem compression and those with or without tinnitus. We also found that worse hearing and longer hearing loss duration were associated with poorer cognitive performance in patients with VS. CONCLUSION The findings of this study provide evidence for cognitive impairment in patients with untreated VS. It can thus be said that including cognitive assessment in the routine clinical management of patients with VS may facilitate more appropriate clinical decision-making and improve patients' quality of life.
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Affiliation(s)
- Zhiyuan Fan
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
| | - Zhen Fan
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
| | - Zongze Li
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
| | - Hongfei Zhang
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
| | - Liuxun Hu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
| | - Tianming Qiu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
| | - Wei Zhu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
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Aguiñaga S, Guzman J, Soto Y, Marquez DX. Self-rated health as a predictor of cognition among middle-aged and older Latinos. NEUROPSYCHOLOGY, DEVELOPMENT, AND COGNITION. SECTION B, AGING, NEUROPSYCHOLOGY AND COGNITION 2023; 30:388-401. [PMID: 35174775 PMCID: PMC9381643 DOI: 10.1080/13825585.2022.2038070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/31/2022] [Indexed: 10/19/2022]
Abstract
Self-rated health (SRH) has been used to predict cognitive decline in various populations; however, this relationship has not been examined in Latinos. This study examines the relationship between SRH and cognition among middle-aged and older Latinos. A cross-sectional analysis was conducted among Latinos (n = 425, Mage = 64.13 ± 7.65, 82% female). Participants rated their health as poor/fair, good, and excellent and completed cognitive performance tests. Analyses of covariance (ANCOVA) examined differences in cognition between SRH categories. ANCOVAs showed significant differences in SRH categories for working memory (F [2, 357] = 3.63, p = .028) and global cognition (F [2, 348] = 3.074, p = .047), such that those who self-rated their health as good had better scores compared to participants in the poor/fair category. Findings show that SRH is associated with cognition among middle-aged and older Latinos. SRH may serve as an indicator of early signs of cognitive decline.
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Affiliation(s)
- Susan Aguiñaga
- University of Illinois at Urbana-Champaign, Department of Kinesiology and Community Health, 906 S. Goodwin Ave., Urbana, IL 61801, United States
| | - Jacqueline Guzman
- University of Illinois at Urbana-Champaign, Department of Kinesiology and Community Health, 906 S. Goodwin Ave., Urbana, IL 61801, United States
| | - Yuliana Soto
- University of Illinois at Urbana-Champaign, Department of Kinesiology and Community Health, 906 S. Goodwin Ave., Urbana, IL 61801, United States
| | - David X. Marquez
- University of Illinois at Chicago, Department of Kinesiology and Nutrition, 1919 W. Taylor Street, Chicago, IL 60612, United States
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11
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The Executive-Function-Related Cognitive-Motor Dual Task Walking Performance and Task Prioritizing Effect on People with Parkinson's Disease. Healthcare (Basel) 2023; 11:healthcare11040567. [PMID: 36833101 PMCID: PMC9956339 DOI: 10.3390/healthcare11040567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/31/2023] [Accepted: 02/04/2023] [Indexed: 02/17/2023] Open
Abstract
To safely walk in a community environment requires dual cognitive-walking ambulation ability for people with Parkinson's disease (PD). A past study showed inconsistent results on cognitive-walking performance for PD patients, possibly due to the various cognitive tasks used and task priority assignment. This study designed cognitive-walking tests that used executive-related cognitive tasks to evaluate patients with early-stage Parkinson's disease who did not have obvious cognitive deficits. The effect of assigning task prioritization was also evaluated. Sixteen individuals with PD (PD group) and 16 individuals without PD (control group) underwent single cognitive tests, single walking tests, dual walking tests, and prioritizing task tests. Three types of cognitive, spatial memory, Stroops, and calculation tasks were employed. The cognitive performance was evaluated by response time, accuracy, and speed-accuracy trade off composite score. The walking performance was evaluated by the temporal spatial gait characteristics and variation in gait. The results showed that the walking performance of the PD group was significantly worse than the control group in both single and dual walking conditions. The group difference in cognitive performance was shown in composite score under the dual calculation walking task but not under the single task. While assigning priority to walking, no group difference in walking was observed but the response accuracy rate of PD groups declined. This study concluded that the dual task walking test could sharpen the cognitive deficits for early-stage PD patients. The task priority assignment might not be recommended while testing gait deficits since it decreased the ability to discriminate group differences.
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12
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Therapeutic Molecular Insights into the Active Engagement of Cannabinoids in the Therapy of Parkinson's Disease: A Novel and Futuristic Approach. Neurotox Res 2023; 41:85-102. [PMID: 36567416 DOI: 10.1007/s12640-022-00619-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/09/2022] [Accepted: 12/05/2022] [Indexed: 12/27/2022]
Abstract
Parkinson's disease is a neurodegenerative disorder which is characterised mostly by loss of dopaminergic nerve cells throughout the nigral area mainly as a consequence of oxidative stress. Muscle stiffness, disorganised bodily responses, disturbed sleep, weariness, amnesia, and voice impairment are all symptoms of dopaminergic neuron degeneration and existing symptomatic treatments are important to arrest additional neuronal death. Some cannabinoids have recently been demonstrated as robust antioxidants that might protect the nerve cells from degeneration even when cannabinoid receptors are not triggered. Cannabinoids are likely to have property to slow or presumably cease the steady deterioration of the brain's dopaminergic systems, a condition for which there is now no treatment. The use of cannabinoids in combination with currently available drugs has the potential to introduce a radically new paradigm for treatment of Parkinson's disease, making it immensely useful in the treatment of such a debilitating illness.
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13
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Heldmann M, Mönch E, Kesseböhmer A, Brüggemann N, Münte TF, Ye Z. Pramipexole modulates fronto-subthalamic pathway in sequential working memory. Neuropsychopharmacology 2022; 48:716-723. [PMID: 36352204 PMCID: PMC10066371 DOI: 10.1038/s41386-022-01494-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 10/23/2022] [Accepted: 10/26/2022] [Indexed: 11/10/2022]
Abstract
Brain dopamine may regulate the ability to maintain and manipulate sequential information online. However, the precise role of dopamine remains unclear. This pharmacological fMRI study examined whether and how the dopamine D2/3 receptor agonist pramipexole modulates fronto-subthalamic or fronto-striatal pathways during sequential working memory. This study used a double-blind, randomized crossover design. Twenty-two healthy male volunteers completed a digit ordering task during fMRI scanning after receiving a single oral dose of 0.5-mg pramipexole or placebo. The pramipexole effects on task performance, regional activity, activity pattern similarity, and functional connectivity were analyzed. Pramipexole impaired task performance, leading to less accurate and slower responses in the digit ordering task. Also, it downregulated the maintenance-related subthalamic and dorsolateral prefrontal activity, increasing reaction times for maintaining sequences. In contrast, pramipexole upregulated the manipulation-related subthalamic and dorsolateral prefrontal activity, increasing reaction time costs for manipulating sequences. In addition, it altered the dorsolateral prefrontal activity pattern similarity and fronto-subthalamic functional connectivity. Finally, pramipexole reduced maintenance-related striatal activity, which did not affect the behavior. This study confirms the role of the fronto-subthalamic pathway in sequential working memory. Furthermore, it shows that D2 transmission can regulate sequential working memory by modulating the fronto-subthalamic pathway.
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Affiliation(s)
- Marcus Heldmann
- Department of Neurology, University of Lübeck, Lübeck, 23538, Germany.,Institute of Psychology II, University of Lübeck, Lübeck, 23538, Germany
| | - Eliana Mönch
- Department of Neurology, University of Lübeck, Lübeck, 23538, Germany
| | | | - Norbert Brüggemann
- Department of Neurology, University of Lübeck, Lübeck, 23538, Germany.,Institute of Neurogenetics, University of Lübeck, Lübeck, 23538, Germany
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, Lübeck, 23538, Germany. .,Institute of Psychology II, University of Lübeck, Lübeck, 23538, Germany.
| | - Zheng Ye
- Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
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14
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O'Rawe JF, Leung HC. Topographic organization of the human caudate functional connectivity and age-related changes with resting-state fMRI. Front Syst Neurosci 2022; 16:966433. [PMID: 36211593 PMCID: PMC9543452 DOI: 10.3389/fnsys.2022.966433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/30/2022] [Indexed: 11/30/2022] Open
Abstract
The striatum is postulated to play a central role in gating cortical processing during goal-oriented behavior. While many human neuroimaging studies have treated the striatum as an undivided whole or several homogeneous compartments, some recent studies showed that its circuitry is topographically organized and has more complex relations with the cortical networks than previously assumed. Here, we took a gradient functional connectivity mapping approach that utilizes the entire anatomical space of the caudate nucleus to examine the organization of its functional relationship with the rest of the brain and how its topographic mapping changes with age. We defined the topography of the caudate functional connectivity using three publicly available resting-state fMRI datasets. We replicated and extended previous findings. First, we found two stable gradients of caudate connectivity patterns along its medial-lateral (M-L) and anterior-posterior (A-P) axes, supporting findings from previous tract-tracing studies of non-human primates that there are at least two main organizational principles within the caudate nucleus. Second, unlike previous emphasis of the A-P topology, we showed that the differential connectivity patterns along the M-L gradient of caudate are more clearly organized with the large-scale neural networks; such that brain networks associated with internal vs. external orienting behavior are respectively more closely linked to the medial vs. lateral extent of the caudate. Third, the caudate's M-L organization showed greater age-related reduction in integrity, which was further associated with age-related changes in behavioral measures of executive functions. In sum, our analysis confirmed a sometimes overlooked M-L functional connectivity gradient within the caudate nucleus, with its lateral longitudinal zone more closely linked to the frontoparietal cortical circuits and age-related changes in cognitive control. These findings provide a more precise mapping of the human caudate functional connectivity, both in terms of the gradient organization with cortical networks and age-related changes in such organization.
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Affiliation(s)
- Jonathan F. O'Rawe
- Integrative Neuroscience Program, Department of Psychology, Stony Brook University, Stony Brook, NY, United States
- National Institute of Mental Health Intramural Program, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Hoi-Chung Leung
| | - Hoi-Chung Leung
- National Institute of Mental Health Intramural Program, National Institutes of Health, Bethesda, MD, United States
- Jonathan F. O'Rawe jonathan.o'
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15
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Gait alterations in Parkinson’s disease at the stage of hemiparkinsonism—A longitudinal study. PLoS One 2022; 17:e0269886. [PMID: 35862311 PMCID: PMC9302743 DOI: 10.1371/journal.pone.0269886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/29/2022] [Indexed: 11/19/2022] Open
Abstract
Background
Progressive gait impairment in Parkinson’s disease (PD) leads to significant disability. Quantitative gait parameters analysis provides valuable information about fine gait alterations.
Objectives
To analyse change of gait parameters in patients with early PD at the stage of hemiparkinsonism and after 1 year of follow up, taking into account clinical asymmetry.
Methods
Consecutive early PD outpatients with strictly unilateral motor features underwent clinical and neuropsychological assessment at the study entry and after 1 year of follow up. Gait was assessed with GAITRite walkway using dual-task methodology. Spatiotemporal gait parameters (step time and length, swing time and double support time) and their coefficients of variation (CV), gait velocity and heel-to-heel base support were evaluated.
Results
We included 42 PD patients with disease duration of 1.3 years (±1.13). Progression of motor and non-motor symptoms, without significant cognitive worsening, was observed after 1 year of follow up. Significant shortening of the swing time, prolongation of the double support and increase of their CVs were observed during all task conditions similarly for most parameters on symptomatic and asymptomatic bodysides, except for CV for the swing time under the combined task.
Conclusion
Alterations of the swing time and double support time are already present even at the asymptomatic body side, and progress similarly, or even at faster pace, at this side, despite dopaminergic treatment These parameters deserve further investigation in larger, prospective studies to address their potential to serve as markers of progression in interventional disease modifying trials with early PD patients.
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16
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Takashima H, Terada T, Bunai T, Matsudaira T, Obi T, Ouchi Y. In vivo Illustration of Altered Dopaminergic and GABAergic Systems in Early Parkinson's Disease. Front Neurol 2022; 13:880407. [PMID: 35655619 PMCID: PMC9152017 DOI: 10.3389/fneur.2022.880407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/14/2022] [Indexed: 11/23/2022] Open
Abstract
Background Changes in γ-aminobutyric acid (GABA) function are noted in patients with Parkinson's disease (PD) who have some non-motor impairments. However, dopamine-related GABA function and GABA-related cognitive changes are still unclear. Methods Thirteen drug-naive early-stage PD patients underwent a series of PET scans with [11C]flumazenil(FMZ) and [11C]CFT. The [11C]FMZ binding potential (BPND) derived from a Logan plot analysis was compared between PD patients and age-matched controls. The [11C]CFT radioactivity relative to the cerebellar counterpart was estimated as a semiquantitative value [11C]CFT SUVR. Correlations between [11C]FMZ BPND and [11C]CFT SUVR in the same region of interest were also examined. Results In patients in the PD group, [11C]CFT SUVR was significantly lower in the putamen. The levels of [11C]FMZ BPND in the cerebral cortex (frontal lobe dominancy) and the affected-side putamen were also reduced. In addition, [11C]CFT SUVR was negatively correlated with the [11C]FMZ BPND level in the affected-side putamen. In patients in the PD group, the total frontal assessment battery (FAB) score was positively correlated with the [11C]FMZ BPND in the frontal region. Conclusion GABAergic dysfunction coexists with dopaminergic loss not only in the putamen but also over the extrastriatal region in patients with early PD and is related to frontal dysfunction. The negative correlation of [11C]CFT SUVR with [11C]FMZ BPND in the affected putamen suggests that a greater dopaminergic demise would decelerate GABA release (or an increase in tracer binding), resulting in persistent failure of the GABAergic system in PD patients.
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Affiliation(s)
- Hirotsugu Takashima
- Department of Neurology, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan.,Department of Biofunctional Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tatsuhiro Terada
- Department of Neurology, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan.,Department of Biofunctional Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tomoyasu Bunai
- Department of Biofunctional Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takashi Matsudaira
- Department of Neurology, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan.,Department of Biofunctional Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tomokazu Obi
- Department of Neurology, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan
| | - Yasuomi Ouchi
- Department of Biofunctional Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Hamamatsu PET Imaging Center, Hamamatsu Medical Photonics Foundation, Hamamatsu, Japan
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17
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Chang KH, French IT, Liang WK, Lo YS, Wang YR, Cheng ML, Huang NE, Wu HC, Lim SN, Chen CM, Juan CH. Evaluating the Different Stages of Parkinson's Disease Using Electroencephalography With Holo-Hilbert Spectral Analysis. Front Aging Neurosci 2022; 14:832637. [PMID: 35619940 PMCID: PMC9127298 DOI: 10.3389/fnagi.2022.832637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/08/2022] [Indexed: 01/04/2023] Open
Abstract
Electroencephalography (EEG) can reveal the abnormalities of dopaminergic subcortico-cortical circuits in patients with Parkinson's disease (PD). However, conventional time-frequency analysis of EEG signals cannot fully reveal the non-linear processes of neural activities and interactions. A novel Holo-Hilbert Spectral Analysis (HHSA) was applied to reveal non-linear features of resting state EEG in 99 PD patients and 59 healthy controls (HCs). PD patients demonstrated a reduction of β bands in frontal and central regions, and reduction of γ bands in central, parietal, and temporal regions. Compared with early-stage PD patients, late-stage PD patients demonstrated reduction of β bands in the posterior central region, and increased θ and δ2 bands in the left parietal region. θ and β bands in all brain regions were positively correlated with Hamilton depression rating scale scores. Machine learning algorithms using three prioritized HHSA features demonstrated "Bag" with the best accuracy of 0.90, followed by "LogitBoost" with an accuracy of 0.89. Our findings strengthen the application of HHSA to reveal high-dimensional frequency features in EEG signals of PD patients. The EEG characteristics extracted by HHSA are important markers for the identification of depression severity and diagnosis of PD.
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Affiliation(s)
- Kuo-Hsuan Chang
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Isobel Timothea French
- Institute of Cognitive Neuroscience, National Central University, Taoyuan, Taiwan
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Central University and Academia Sinica, Taipei, Taiwan
| | - Wei-Kuang Liang
- Institute of Cognitive Neuroscience, National Central University, Taoyuan, Taiwan
- Cognitive Intelligence and Precision Healthcare Research Center, National Central University, Taoyuan, Taiwan
| | - Yen-Shi Lo
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yi-Ru Wang
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Mei-Ling Cheng
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
- Clinical Phenome Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Norden E. Huang
- Institute of Cognitive Neuroscience, National Central University, Taoyuan, Taiwan
- Cognitive Intelligence and Precision Healthcare Research Center, National Central University, Taoyuan, Taiwan
- Data Analysis and Application Laboratory, The First Institute of Oceanography, Qingdao, China
| | - Hsiu-Chuan Wu
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Siew-Na Lim
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chiung-Mei Chen
- Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chi-Hung Juan
- Institute of Cognitive Neuroscience, National Central University, Taoyuan, Taiwan
- Cognitive Intelligence and Precision Healthcare Research Center, National Central University, Taoyuan, Taiwan
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18
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Aguiñaga S, Kaushal N, Balbim GM, Wilson RS, Wilbur JE, Hughes S, Buchner DM, Berbaum M, McAuley E, Vásquez PM, Marques IG, Wang T, Marquez DX. Latin Dance and Working Memory: The Mediating Effects of Physical Activity Among Middle-Aged and Older Latinos. Front Aging Neurosci 2022; 14:755154. [PMID: 35493932 PMCID: PMC9051326 DOI: 10.3389/fnagi.2022.755154] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundPhysical activity (PA) is a promising method to improve cognition among middle-aged and older adults. Latinos are at high risk for cognitive decline and engaging in low levels of PA. Culturally relevant PA interventions for middle-aged and older Latinos are critically needed to reduce risk of cognitive decline. We examined changes in cognitive performance among middle-aged and older Latinos participating in the BAILAMOS™ dance program or a health education group and compared the mediating effects of PA between group assignment and change in cognitive domains.MethodsOur 8-month randomized controlled trial tested BAILAMOS™, a 4-month Latin dance program followed by a 4-month maintenance phase. A total of 333 older Latinos aged 55+ were randomized to either BAILAMOS™, or to a health education control group. Neuropsychological tests were administered, scores were converted to z-scores, and specific domains (i.e., executive function, episodic memory, and working memory) were derived. Self-reported PA was assessed, and we reported categories of total PA, total leisure PA, and moderate-to-vigorous PA as minutes/week. A series of ANCOVAs tested changes in cognitive domains at 4 and 8 months. A mediation analysis tested the mediating effects of each PA category between group assignment and a significant change in cognition score.ResultsThe ANCOVAs found significant improvement in working memory scores among participants in the dance group at month 8 [F(1,328) = 5.79, p = 0.017, d = 0.20], but not in executive functioning [F(2,328) = 0.229, p = 0.80, Cohen’s d = 0.07] or episodic memory [F(2,328) = 0.241, p = 0.78, Cohen’s d = 0.05]. Follow-up mediation models found that total PA mediated the relationship between group assignment and working memory, in favor of the dance group (β = 0.027, 95% CI [0.0000, 0.0705]). Similarly, total leisure PA was found to mediate this relationship [β = 0.035, 95% CI (0.0041, 0.0807)].ConclusionA 4-month Latin dance program followed by a 4-month maintenance phase improved working memory among middle-aged and older Latinos. Improvements in working memory were mediated by participation in leisure PA. Our results support the current literature that leisure time PA influences cognition and highlight the importance of culturally relevant PA modalities for Latinos.Clinical Trial Registration[www.ClinicalTrials.gov], identifier [NCT01988233].
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Affiliation(s)
- Susan Aguiñaga
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- *Correspondence: Susan Aguiñaga,
| | - Navin Kaushal
- Department of Health Sciences, Indiana University, Indianapolis, IN, United States
| | - Guilherme M. Balbim
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada
| | - Robert S. Wilson
- Department of Neurological Sciences and Psychiatry and Behavioral Sciences, Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States
| | | | - Susan Hughes
- Center for Research on Health and Aging, University of Illinois at Chicago, Chicago, IL, United States
| | - David M. Buchner
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Michael Berbaum
- Center for Research on Health and Aging, University of Illinois at Chicago, Chicago, IL, United States
| | - Edward McAuley
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Priscilla M. Vásquez
- Department of Urban Public Health, College of Science and Health, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | | | - Tianxiu Wang
- Center for Research on Health and Aging, University of Illinois at Chicago, Chicago, IL, United States
| | - David X. Marquez
- Center for Research on Health and Aging, University of Illinois at Chicago, Chicago, IL, United States
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, United States
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19
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Ye Z, Heldmann M, Herrmann L, Brüggemann N, Münte TF. Altered alpha and theta oscillations correlate with sequential working memory in Parkinson’s disease. Brain Commun 2022; 4:fcac096. [PMID: 35755636 PMCID: PMC9214782 DOI: 10.1093/braincomms/fcac096] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/02/2021] [Accepted: 04/09/2022] [Indexed: 12/02/2022] Open
Abstract
Daily activities such as preparing a meal rely on the ability to arrange thoughts and actions in the right order. Patients with Parkinson’s disease have difficulties in sequencing tasks. Their deficits in sequential working memory have been associated with basal ganglia dysfunction. Here we demonstrate that altered parietal alpha and theta oscillations correlate with sequential working memory in Parkinson’s disease. We included 15 patients with Parkinson’s disease (6 women, mean age: 66.0 years), 24 healthy young (14 women, mean age: 24.1 years), and 16 older participants (7 women, mean age: 68.6 years). All participants completed a picture ordering task with scalp electroencephalogram (EEG) recording, where they arranged five pictures in a specific order and memorized them over a delay. When encoding and maintaining picture sequences, patients with Parkinson’s disease showed a lower baseline alpha peak frequency with higher alpha power than healthy young and older participants. Patients with a higher baseline alpha power responded more slowly for ordered trials. When manipulating picture sequences, patients with Parkinson’s disease showed a lower frequency of maximal power change for random versus ordered trials than healthy young and older participants. Healthy older participants showed a higher frequency of maximal power change than healthy young participants. Compared with patients with frequency of maximal power change in the alpha band (8–15 Hz), patients with frequency of maximal power change in the theta band (4–7 Hz) showed a higher ordering-related accuracy cost (random versus ordered) in the main task and tended to respond more slowly and less accurately in an independent working memory test. In conclusion, altered baseline alpha oscillations and task-dependent modulation of alpha and theta oscillations may be neural markers of poor sequential working memory in Parkinson’s disease.
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Affiliation(s)
- Zheng Ye
- Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Marcus Heldmann
- Department of Neurology, University of Lübeck, Lübeck 23538, Germany
- Institute of Psychologie II, University of Lübeck, Lübeck 23538, Germany
| | - Lisa Herrmann
- Department of Neurology, University of Lübeck, Lübeck 23538, Germany
| | - Norbert Brüggemann
- Department of Neurology, University of Lübeck, Lübeck 23538, Germany
- Institute of Neurogenetics, University of Lübeck, Lübeck 23538, Germany
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, Lübeck 23538, Germany
- Institute of Psychologie II, University of Lübeck, Lübeck 23538, Germany
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20
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Cools R, Tichelaar JG, Helmich RCG, Bloem BR, Esselink RAJ, Smulders K, Timmer MHM. Role of dopamine and clinical heterogeneity in cognitive dysfunction in Parkinson's disease. PROGRESS IN BRAIN RESEARCH 2022; 269:309-343. [PMID: 35248200 DOI: 10.1016/bs.pbr.2022.01.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Parkinson's disease (PD) is commonly treated with dopaminergic medication, which enhances some, while impairing other cognitive functions. It can even contribute to impulse control disorder and addiction. We describe the history of research supporting the dopamine overdose hypothesis, which accounts for the large within-patient variability in dopaminergic medication effects across different tasks by referring to the spatially non-uniform pattern of dopamine depletion in dorsal versus ventral striatum. However, there is tremendous variability in dopaminergic medication effects not just within patients across distinct tasks, but also across different patients. In the second part of this chapter we review recent studies addressing the large individual variability in the negative side effects of dopaminergic medication on functions that implicate dopamine, such as value-based learning and choice. These studies begin to unravel the mechanisms of dopamine overdosing, thus revising the strict version of the overdose hypothesis. For example, the work shows that the canonical boosting of reward-versus punishment-based choice by medication is greater in patients with depression and a non-tremor phenotype, which both implicate, among other pathology, more rather than less severe dysregulation of the mesolimbic dopamine system. Future longitudinal cohort studies are needed to identify how to optimally combine different clinical, personality, cognitive, neural, genetic and molecular predictors of detrimental medication effects in order to account for as much of the relevant variability as possible. This will provide a useful tool for precision neurology, allowing individual and contextual tailoring of (the dose of) dopaminergic medication in order to maximize its cognitive benefits, yet minimize its side effects.
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Affiliation(s)
- Roshan Cools
- Radboud university medical center, Department of Psychiatry, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands.
| | - Jorryt G Tichelaar
- Radboud university medical center, Department of Neurology, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Rick C G Helmich
- Radboud university medical center, Department of Neurology, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Bastiaan R Bloem
- Radboud university medical center, Department of Neurology, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Rianne A J Esselink
- Radboud university medical center, Department of Neurology, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Katrijn Smulders
- Radboud university medical center, Department of Neurology, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Monique H M Timmer
- Radboud university medical center, Department of Neurology, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
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21
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Tiedt HO, Ehlen F, Klostermann F. Dopamine-Related Reduction of Semantic Spreading Activation in Patients With Parkinson's Disease. Front Hum Neurosci 2022; 16:837122. [PMID: 35431839 PMCID: PMC9008217 DOI: 10.3389/fnhum.2022.837122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/08/2022] [Indexed: 11/13/2022] Open
Abstract
Impaired performance in verbal fluency (VF) tasks is a frequent observation in Parkinson's disease (PD). As to the nature of the underlying cognitive deficit, it is commonly attributed to a frontal-type dysexecutive syndrome due to nigrostriatal dopamine depletion. Whereas dopaminergic medication typically improves VF performance in PD, e.g., by ameliorating impaired lexical switching, its effect on semantic network activation is unclear. Data from priming studies suggest that dopamine causes a faster decay of semantic activation spread. The aim of the current study was to examine the impact of dopaminergic medication on the dynamic change of word frequency during VF performance as a measure of semantic spreading activation. To this end, we performed a median split analysis of word frequency during phonemic and semantic VF task performance in a PD group tested while receiving dopaminergic medication (ON) as well as after drug withdrawal (i.e., OFF), and in a sample of age-matched healthy volunteers (both groups n = 26). Dopaminergic medication in the PD group significantly affected phonemic VF with improved word production as well as increased error-rates. The expected decrease of word frequency during VF task performance was significantly smaller in the PD group ON medication than in healthy volunteers across semantic and phonemic VF. No significant group-difference emerged between controls and the PD group in the OFF condition. The comparison between both treatment conditions within the PD group did not reach statistical significance. The observed pattern of results indicates a faster decay of semantic network activation during lexical access in PD patients on dopaminergic medication. In view of improved word generation, this finding is consistent with a concept of more focused neural activity by an increased signal-to-noise ratio due to dopaminergic neuromodulation. However, the effect of dopaminergic stimulation on VF output suggests a trade-off between these beneficial effects and increased error-rates.
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Affiliation(s)
- Hannes Ole Tiedt
- Department of Neurology, Motor and Cognition Group, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universitätzu Berlin, Berlin, Germany
| | - Felicitas Ehlen
- Department of Neurology, Motor and Cognition Group, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universitätzu Berlin, Berlin, Germany
- Department of Psychiatry, Jüdisches Krankenhaus Berlin, Berlin, Germany
| | - Fabian Klostermann
- Department of Neurology, Motor and Cognition Group, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universitätzu Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
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22
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Bashirzade AAO, Cheresiz SV, Belova AS, Drobkov AV, Korotaeva AD, Azizi-Arani S, Azimirad A, Odle E, Gild EYV, Ardashov OV, Volcho KP, Bozhko DV, Myrov VO, Kolchanova SM, Polovian AI, Galumov GK, Salakhutdinov NF, Amstislavskaya TG, Kalueff AV. MPTP-Treated Zebrafish Recapitulate 'Late-Stage' Parkinson's-like Cognitive Decline. TOXICS 2022; 10:69. [PMID: 35202255 PMCID: PMC8879925 DOI: 10.3390/toxics10020069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 11/25/2022]
Abstract
The zebrafish is a promising model species in biomedical research, including neurotoxicology and neuroactive drug screening. 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) evokes degeneration of dopaminergic neurons and is commonly used to model Parkinson's disease (PD) in laboratory animals, including zebrafish. However, cognitive phenotypes in MPTP-evoked experimental PD models remain poorly understood. Here, we established an LD50 (292 mg/kg) for intraperitoneal MPTP administration in adult zebrafish, and report impaired spatial working memory (poorer spontaneous alternation in the Y-maze) in a PD model utilizing fish treated with 200 µg of this agent. In addition to conventional behavioral analyses, we also employed artificial intelligence (AI)-based approaches to independently and without bias characterize MPTP effects on zebrafish behavior during the Y-maze test. These analyses yielded a distinct cluster for 200-μg MPTP (vs. other) groups, suggesting that high-dose MPTP produced distinct, computationally detectable patterns of zebrafish swimming. Collectively, these findings support MPTP treatment in adult zebrafish as a late-stage experimental PD model with overt cognitive phenotypes.
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Affiliation(s)
- Alim A. O. Bashirzade
- Scientific Research Institute of Neuroscience and Medicine, 630090 Novosibirsk, Russia; (S.V.C.); (A.S.B.); (T.G.A.)
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Sergey V. Cheresiz
- Scientific Research Institute of Neuroscience and Medicine, 630090 Novosibirsk, Russia; (S.V.C.); (A.S.B.); (T.G.A.)
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Alisa S. Belova
- Scientific Research Institute of Neuroscience and Medicine, 630090 Novosibirsk, Russia; (S.V.C.); (A.S.B.); (T.G.A.)
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Alexey V. Drobkov
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Anastasiia D. Korotaeva
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Soheil Azizi-Arani
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Amirhossein Azimirad
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Eric Odle
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Emma-Yanina V. Gild
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Oleg V. Ardashov
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 630090 Novosibirsk, Russia; (O.V.A.); (K.P.V.); (N.F.S.)
| | - Konstantin P. Volcho
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 630090 Novosibirsk, Russia; (O.V.A.); (K.P.V.); (N.F.S.)
| | - Dmitrii V. Bozhko
- ZebraML, Inc., Houston, TX 77043, USA; (D.V.B.); (V.O.M.); (S.M.K.); (A.I.P.); (G.K.G.)
| | - Vladislav O. Myrov
- ZebraML, Inc., Houston, TX 77043, USA; (D.V.B.); (V.O.M.); (S.M.K.); (A.I.P.); (G.K.G.)
| | - Sofia M. Kolchanova
- ZebraML, Inc., Houston, TX 77043, USA; (D.V.B.); (V.O.M.); (S.M.K.); (A.I.P.); (G.K.G.)
| | | | - Georgii K. Galumov
- ZebraML, Inc., Houston, TX 77043, USA; (D.V.B.); (V.O.M.); (S.M.K.); (A.I.P.); (G.K.G.)
| | - Nariman F. Salakhutdinov
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 630090 Novosibirsk, Russia; (O.V.A.); (K.P.V.); (N.F.S.)
| | - Tamara G. Amstislavskaya
- Scientific Research Institute of Neuroscience and Medicine, 630090 Novosibirsk, Russia; (S.V.C.); (A.S.B.); (T.G.A.)
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
| | - Allan V. Kalueff
- Scientific Research Institute of Neuroscience and Medicine, 630090 Novosibirsk, Russia; (S.V.C.); (A.S.B.); (T.G.A.)
- Institute of Medicine and Psychology, Novosibirsk State University, 630117 Novosibirsk, Russia; (A.V.D.); (A.D.K.); (S.A.-A.); (A.A.); (E.O.); (E.-Y.V.G.)
- Ural Federal University, 620002 Yekaterinburg, Russia
- Neurobiology Program, Sirius University of Science and Technology, 354340 Sochi, Russia
- Moscow Institute of Physics and Technology, 141701 Moscow, Russia
- Granov Scientific Research Center of Radiology and Surgical Technologies, 197758 St. Petersburg, Russia
- Institute of Experimental Medicine, Almazov National Medical Research Centre, 197341 St. Petersburg, Russia
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia
- School of Pharmacy, Southwest University, Chongqing 400715, China
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23
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Pasotti F, De Luca G, Aiello EN, Gramegna C, Di Gangi M, Foderaro G, Gallucci M, Biglia E, Bottini G. A multi-component, adaptive Working Memory Assessment Battery (WoMAB): validation and norms in an Italian population sample. Neurol Sci 2022; 43:985-992. [PMID: 34185185 PMCID: PMC8789625 DOI: 10.1007/s10072-021-05416-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/17/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Working memory (WM) abilities are frequently impaired in neurological disorders affecting fronto-parietal cortical/sub-cortical structures. WM deficits negatively influence interventional outcomes and everyday functioning. This study thus aimed at the following: (a) developing and standardizing an ecologically valid task for WM assessment ( Ice Cream Test, ICT); (b) validating and norming a novel WM test (Digit Ordering Test, DOT), as well as providing updated norms for digit span (DS) tasks, in an Italian population sample; (c) introducing a novel scoring procedure for measuring WM. METHODS One-hundred and sixty-eight Italian healthy participants-73 male, 95 females; age: 48.4 ± 19.1 (18-86); education: 12.1 ± 4.8 (4-21)-underwent a thorough WM assessment-DOT, ICT, and both forward and backward DS tasks (FDS, BDS). The ICT requires participants to act as waiters who have to keep track of customers' orders. For each task, WM and total (T) outcomes were computed, i.e., the number of elements in the longest sequence and that of recalled sequences, respectively. Norms were derived via the equivalent score (ES) method. RESULTS DS ratios (DSRs) were computed for both WM/S and T outcomes on raw DS measures (BDS divided by FDS). Age and education significantly predicted all WM tasks; sex affected FDS and DSR-T scores (males > females). WM measures were highly internally related. DISCUSSION The present work provides Italian practitioners with a normatively updated, multi-component, adaptive battery for WM assessment (WoMAB) as well as with novel outcomes which capture different WM facets-WM capacity and attentive monitoring abilities.
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Affiliation(s)
- Fabrizio Pasotti
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| | - Giulia De Luca
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| | - Edoardo Nicolò Aiello
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- PhD in Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Chiara Gramegna
- Department of Psychology, University of Milano-Bicocca, Milano, Italy
| | - Marco Di Gangi
- Studio Di Gangi & Vicini Psicologia Psicoterapia e Neuropsicologia, Minusio, Switzerland
| | - Giuseppe Foderaro
- Neurocentro Della Svizzera Italiana, Ente Ospedaliero Cantonale Ospedale Regionale Di Lugano, Lugano, Switzerland
| | - Marcello Gallucci
- Department of Psychology, University of Milano-Bicocca, Milano, Italy
- Milan Center for Neuroscience (NeuroMI), Milano, Italy
| | - Elena Biglia
- Neurocentro Della Svizzera Italiana, Ente Ospedaliero Cantonale Ospedale Regionale Di Lugano, Lugano, Switzerland
| | - Gabriella Bottini
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
- Milan Center for Neuroscience (NeuroMI), Milano, Italy
- Cognitive Neuropsychology Centre, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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24
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Parkinson's disease: Alterations of motor plasticity and motor learning. HANDBOOK OF CLINICAL NEUROLOGY 2022; 184:135-151. [PMID: 35034730 DOI: 10.1016/b978-0-12-819410-2.00007-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This chapter reviews the alterations in motor learning and motor cortical plasticity in Parkinson's disease (PD), the most common movement disorder. Impairments in motor learning, which is a hallmark of basal ganglia disorders, influence the performance of motor learning-related behavioral tasks and have clinical implications for the management of disturbance in gait and posture, and for rehabilitative management of PD. Although plasticity is classically induced and assessed in sliced preparation in animal models, in this review we have concentrated on the results from non-invasive brain stimulation techniques such as transcranial magnetic stimulation (TMS), transcranial alternating current stimulation (tACS) and transcranial direct current stimulation (tDCS) in patients with PD, in addition to a few animal electrophysiologic studies. The chapter summarizes the results from different cortical and subcortical plasticity investigations. Plasticity induction protocols reveal deficient plasticity in PD and these plasticity measures are modulated by medications and deep brain stimulation. There is considerable variability in these measures that are related to inter-individual variations, different disease characteristics and methodological considerations. Nevertheless, these pathophysiologic studies expand our knowledge of cortical excitability, plasticity and the effects of different treatments in PD. These tools of modulating plasticity and motor learning improve our understanding of PD pathophysiology and help to develop new treatments for this disabling condition.
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25
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Guglietti B, Hobbs D, Collins-Praino LE. Optimizing Cognitive Training for the Treatment of Cognitive Dysfunction in Parkinson's Disease: Current Limitations and Future Directions. Front Aging Neurosci 2021; 13:709484. [PMID: 34720988 PMCID: PMC8549481 DOI: 10.3389/fnagi.2021.709484] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/17/2021] [Indexed: 01/09/2023] Open
Abstract
Cognitive dysfunction, primarily involving impairments in executive function, visuospatial function and memory, is one of the most common non-motor symptoms of Parkinson’s disease (PD). Currently, the only pharmacological treatments available for the treatment of cognitive dysfunction in PD provide variable benefit, making the search for potential non-pharmacological therapies to improve cognitive function of significant interest. One such therapeutic strategy may be cognitive training (CT), which involves the repetition of standardized tasks with the aim of improving specific aspects of cognition. Several studies have examined the effects of CT in individuals with PD and have shown benefits in a variety of cognitive domains, but the widespread use of CT in these individuals may be limited by motor impairments and other concerns in study design. Here, we discuss the current state of the literature on the use of CT for PD and propose recommendations for future implementation. We also explore the potential use of more recent integrative, adaptive and assistive technologies, such as virtual reality, which may optimize the delivery of CT in PD.
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Affiliation(s)
- Bianca Guglietti
- Cognition, Ageing and Neurodegenerative Disease Laboratory, Department of Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - David Hobbs
- Medical Device Research Institute, College of Science and Engineering, Flinders University, Tonsley, SA, Australia.,Allied Health & Human Performance, University of South Australia, Adelaide, SA, Australia
| | - Lyndsey E Collins-Praino
- Cognition, Ageing and Neurodegenerative Disease Laboratory, Department of Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
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26
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Silva-Martins S, Beserra-Filho JIA, Maria-Macêdo A, Custódio-Silva AC, Soares-Silva B, Silva SP, Lambertucci RH, Silva RH, Dos Santos JR, Gandhi SR, Quintans-Júnior LJ, Ribeiro AM. Myrtenol complexed with β-cyclodextrin ameliorates behavioural deficits and reduces oxidative stress in the reserpine-induced animal model of Parkinsonism. Clin Exp Pharmacol Physiol 2021; 48:1488-1499. [PMID: 34351001 DOI: 10.1111/1440-1681.13563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 11/29/2022]
Abstract
Current pharmacological approaches to treat Parkinson's disease have low long-term efficacy and important adverse side effects. The development of new pharmacological therapies has focused on novel plant-derived phytochemicals. The alcoholic monoterpene myrtenol has been isolated from several plant species, and has anxiolytic, analgesic, anti-inflammatory and antioxidant actions. Our study evaluated the neuroprotective potential of myrtenol complexed with β-cyclodextrin (MYR) on a progressive parkinsonism model induced by reserpine (RES) in mice. The complexation with cyclodextrins enhances the pharmacological action of monoterpenes. Male Swiss mice were treated daily with MYR (5 mg/kg, p.o.) and with RES (0.1 mg/kg, s.c.) every other day during 28 days. Behavioural evaluations were conducted across treatment. At the end of the treatment, immunohistochemistry for tyrosine hydroxylase (TH) and oxidative stress parameters were evaluated. Chronic MYR-treatment protected against olfactory sensibility loss, restored short-term memory and decreased RES-induced motor impairments. Moreover, this treatment prevented dopaminergic depletion and reduced the oxidative status index in the dorsal striatum. Therefore, MYR ameliorated motor and non-motor impairments in the progressive animal model of parkinsonism, possibly by an antioxidant action. Additional research is needed to investigate the mechanisms involved in this neuroprotective effect.
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Affiliation(s)
| | | | - Amanda Maria-Macêdo
- Departament of Biosciences, Universidade Federal de São Paulo, Santos, Brazil
| | | | | | - Sara Pereira Silva
- Departament of Biosciences, Universidade Federal de São Paulo, Santos, Brazil
| | | | - Regina Helena Silva
- Departament of Pharmacology, Universidade Federal de São Paulo, São Paulo, Brazil
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27
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Serum metabolomic biomarkers of perceptual speed in cognitively normal and mildly impaired subjects with fasting state stratification. Sci Rep 2021; 11:18964. [PMID: 34556796 PMCID: PMC8460824 DOI: 10.1038/s41598-021-98640-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 09/06/2021] [Indexed: 12/13/2022] Open
Abstract
Cognitive decline is associated with both normal aging and early pathologies leading to dementia. Here we used quantitative profiling of metabolites involved in the regulation of inflammation, vascular function, neuronal function and energy metabolism, including oxylipins, endocannabinoids, bile acids, and steroid hormones to identify metabolic biomarkers of mild cognitive impairment (MCI). Serum samples (n = 212) were obtained from subjects with or without MCI opportunistically collected with incomplete fasting state information. To maximize power and stratify the analysis of metabolite associations with MCI by the fasting state, we developed an algorithm to predict subject fasting state when unknown (n = 73). In non-fasted subjects, linoleic acid and palmitoleoyl ethanolamide levels were positively associated with perceptual speed. In fasted subjects, soluble epoxide hydrolase activity and tauro-alpha-muricholic acid levels were negatively associated with perceptual speed. Other cognitive domains showed associations with bile acid metabolism, but only in the non-fasted state. Importantly, this study shows unique associations between serum metabolites and cognitive function in the fasted and non-fasted states and provides a fasting state prediction algorithm based on measurable metabolites.
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28
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Tamaš O, Kostić M, Kačar A, Stefanova E, Ðokić BS, Stanisavljević D, Milovanović A, Ðorđević M, Glumbić N, Dragašević-Mišković N. Social Cognition in Patients With Cerebellar Neurodegenerative Disorders. Front Syst Neurosci 2021; 15:664223. [PMID: 34497494 PMCID: PMC8419701 DOI: 10.3389/fnsys.2021.664223] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 07/30/2021] [Indexed: 11/14/2022] Open
Abstract
Objective Cerebellar neurodegenerative disorders (CDs) are a heterogeneous group of disorders. It is known that the cerebellum plays a role not only in motor, but also in cognitive and social cognitive functions. The aim of this study was to investigate social cognition in patients with different CDs. Materials and Methods Social cognition was examined in 34 patients, 12 with spinocerebellar ataxia type 1 (SCA1), 6 with spinocerebellar ataxia type 2 (SCA2), and 16 with idiopathic late onset cerebellar ataxia (ILOCA). All patients were clinically evaluated using the Scale for the Rating and Assessment of Ataxia. In addition, 34 age, sex, and education-matched healthy control (HC) subjects were similarly analyzed. Social cognition was studied using two tests: the Faux Pas Recognition Test and the Reading the Mind in the Eyes Test (RMET). An appropriate array of neuropsychological tests was used to assess the global cognitive status as well as the frontal functions and mood. Results CD patients achieved significantly worse results on both tests of social cognition compared to the HCs. The SCA1 + 2 group achieved the poorest results on the Faux Pas Recognition Test and exhibited poor performance on all cognitive tests, but was only significantly worse compared to the ILOCA group on the Free and Cued Selective Reminding Test (FCSRT) – recognition. The patients in the SCA1 + 2 and ILOCA groups obtained similar scores on RMET. In the SCA1 + 2 group the findings significantly correlated with clinical parameters of disease severity and duration and executive functions (EFs), and with mood and executive functions in the ILOCA group. In the SCA group EFs appeared as the only significant predictor of RMET achievement. The Boston Naming Test (BTN) was a significant predictor of the CD patients’ achievement on RMET, while the BTN, the Trail Making Test Part A and FCSRT – Delayed free recall predicted their performance on the Faux Pas Recognition Test. Conclusion Patients with CD have social cognitive impairments as demonstrated by the Faux Pas Test and the RMET test results. The SCA1 and 2 patients exhibited a more pronounced impairment compared with the ILOCA patients. The independent cognitive predictors of social cognition impairment were EFs and language.
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Affiliation(s)
- Olivera Tamaš
- Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milutin Kostić
- Institute of Mental Health, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Kačar
- Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Elka Stefanova
- Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Biljana Salak Ðokić
- Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dejana Stanisavljević
- Institute of Medical Informatics, Statistics and Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Andona Milovanović
- Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Mirjana Ðorđević
- Faculty of Special Education and Rehabilitation, University of Belgrade, Belgrade, Serbia
| | - Nenad Glumbić
- Faculty of Special Education and Rehabilitation, University of Belgrade, Belgrade, Serbia
| | - Nataša Dragašević-Mišković
- Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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29
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Ren X, Lin J, Stebbins GT, Goetz CG, Luo S. Prognostic Modeling of Parkinson's Disease Progression Using Early Longitudinal Patterns of Change. Mov Disord 2021; 36:2853-2861. [PMID: 34327755 DOI: 10.1002/mds.28730] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Predicting Parkinson's disease (PD) progression may enable better adaptive and targeted treatment planning. OBJECTIVE Develop a prognostic model using multiple, easily acquired longitudinal measures to predict temporal clinical progression from Hoehn and Yahr (H&Y) stage 1 or 2 to stage 3 in early PD. METHODS Predictive longitudinal measures of PD progression were identified by the joint modeling method. Measures were extracted by multivariate functional principal component analysis methods and used as covariates in Cox proportional hazards models. The optimal model was developed from the Parkinson's Progression Marker Initiative (PPMI) data set and confirmed with external validation from the Longitudinal and Biomarker Study in PD (LABS-PD) study. RESULTS The proposed prognostic model with longitudinal information of selected clinical measures showed significant advantages in predicting PD temporal progression in comparison to a model with only baseline information (iAUC = 0.812 vs. 0.743). The modeling results allowed the development of a prognostic index for categorizing PD patients into low, mid, and high risk of progression to HY 3 that is offered to facilitate physician-patient discussion on prognosis. CONCLUSION Incorporating longitudinal information of multiple clinical measures significantly enhances predictive performance of prognostic models. Furthermore, the proposed prognostic index enables clinicians to classify patients into different risk groups, which could be adaptively updated as new longitudinal information becomes available. Modeling of this type allows clinicians to utilize observational data sets that inform on disease natural history and specifically, for precision medicine, allows the insertion of a patient's clinical data to calculate prognostic estimates at the individual case level. © 2021 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Xuehan Ren
- Department of Biostatistics, Gilead Sciences, Foster City, California, USA
| | - Jeffrey Lin
- Department of Biostatistics, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Glenn T Stebbins
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Christopher G Goetz
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Sheng Luo
- Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina, USA
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30
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Liu W, Wang C, He T, Su M, Lu Y, Zhang G, Münte TF, Jin L, Ye Z. Substantia Nigra Integrity Correlates with Sequential Working Memory in Parkinson's Disease. J Neurosci 2021; 41:6304-6313. [PMID: 34099507 PMCID: PMC8287987 DOI: 10.1523/jneurosci.0242-21.2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 11/23/2022] Open
Abstract
Maintaining and manipulating sequences online is essential for daily activities such as scheduling a day. In Parkinson's disease (PD), sequential working memory deficits have been associated with altered regional activation and functional connectivity in the basal ganglia. This study demonstrates that the substantia nigra (SN) integrity correlated with basal ganglia function and sequencing performance in 29 patients with PD (17 women) and 29 healthy controls (HCs; 18 women). In neuromelanin-sensitive structural magnetic resonance imaging (MRI), PD patients showed smaller SNs than HCs. In a digit-ordering task with functional MRI (fMRI), participants either recalled sequential digits in the original order (pure recall) or rearranged the digits and recalled the new sequence (reorder and recall). PD patients performed less accurately than HCs, accompanied by the caudate and pallidal hypoactivation, subthalamic hyperactivation, and weakened functional connectivity between the bilateral SN and all three basal ganglia regions. PD patients with larger SNs tended to exhibit smaller ordering-related accuracy costs (reorder and recall vs pure recall). This effect was fully mediated by the ordering-related caudate activation. Unlike HCs, the ordering-related accuracy cost correlated with the ordering-related caudate activation but not subthalamic activation in PD patients. Moreover, the ordering-related caudate activation correlated with the SN area but not with the daily dose of D2/3 receptor agonists. In PD patients, the daily dose of D2/3 receptor agonists correlated with the ordering-related subthalamic activation, which was not related to the accuracy cost. The findings suggest that damage to the SN may lead to sequential working memory deficits in PD patients, mediated by basal ganglia dysfunction.SIGNIFICANCE STATEMENT We demonstrate that damage to the SN correlates with basal ganglia dysfunction and poor sequencing performance in PD patients. In neuromelanin-sensitive MRI, PD patients showed smaller SNs than healthy controls. In a digit-ordering task with fMRI, PD patients' lower task accuracy was accompanied by the caudate and pallidal hypoactivation, subthalamic hyperactivation, and weakened functional connectivity between the SN and basal ganglia. PD patients with larger SNs exhibited greater ordering-related caudate activation and lower ordering-related accuracy cost when sequencing digits. PD patients with more daily exposure to D2/3 receptor agonists exhibited greater ordering-related subthalamic activation, which did not reduce accuracy cost. It suggests that the SN may affect sequencing performance by regulating the task-dependent caudate activation in PD patients.
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Affiliation(s)
- Wenyue Liu
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changpeng Wang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Tingting He
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Minghong Su
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuan Lu
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Guanyu Zhang
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, 23538 Lübeck, Germany
| | - Lirong Jin
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zheng Ye
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
- Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Shanghai, 201210, China
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Balbim GM, Aguiñaga S, Ajilore OA, Bustamante EE, Erickson KI, Lamar M, Marquez DX. The Effects of the BAILAMOS TM Dance Program on Physical Activity Levels and Cognition of Older Latino Adults: A Pilot Study. J Aging Health 2021; 34:25-40. [PMID: 34027686 DOI: 10.1177/08982643211020996] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective: To investigate the effects of the BAILAMOSTM dance program on physical activity (PA), cardiorespiratory, and cognitive health. Methods: A parallel, two-armed pilot study was conducted with 57 older Latinos randomized to the BAILAMOSTM dance program (n = 28) or health education (HE) (n = 29). We conducted two- and three-way repeated-measures ANOVAs. Results: BAILAMOSTM participants increased participation in leisure moderate-to-vigorous PA (LMVPA) (F[1,53] = 3.17, p = .048, η2G = .01) and performance in global cognition relative to HE participants (F[1,52] = 4.19, p = .045, η2G = .01). Attendance moderated increases in moderate PA, MVPA, LMVPA, and total PA (p < .05). Participants of both groups with ≥75% attendance increased participation in PA. Among participants with <75% attendance, BAILAMOSTM participants increased PA relative to HE. Discussion: BAILAMOSTM positively impacted self-reported PA and global cognition in older Latinos. Even smaller doses of dance appear to impact self-reported PA levels.
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Affiliation(s)
- Guilherme M Balbim
- Department of Kinesiology and Nutrition, 315410University of Illinois at Chicago, Chicago, IL, United States
| | - Susan Aguiñaga
- Department of Kinesiology and Community Health, 115958University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Olusola A Ajilore
- Department of Psychiatry, 315334University of Illinois at Chicago, Chicago, IL, United States
| | - Eduardo E Bustamante
- Department of Kinesiology and Nutrition, 315410University of Illinois at Chicago, Chicago, IL, United States
| | - Kirk I Erickson
- Department of Psychology, 6614University of Pittsburgh, Pittsburgh, PA, United States
| | - Melissa Lamar
- Division of Behavioral Sciences, Rush University, Chicago, IL, United States
| | - David X Marquez
- Department of Kinesiology and Nutrition, 315410University of Illinois at Chicago, Chicago, IL, United States
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Zammit AR, Bennett DA, Hall CB, Lipton RB, Katz MJ, Muniz-Terrera G. A Latent Transition Analysis Model to Assess Change in Cognitive States over Three Occasions: Results from the Rush Memory and Aging Project. J Alzheimers Dis 2021; 73:1063-1073. [PMID: 31884467 DOI: 10.3233/jad-190778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Conceptualizing cognitive aging as a step-sequential process is useful in identifying particular stages of cognitive function and impairment. OBJECTIVE We applied latent transition analysis (LTA) to determine 1) whether the underlying structure of cognitive profiles found at every measurement occasion are uniform across three waves of assessment, 2) whether class-instability is predictive of distal outcomes, and 3) whether class-reversions from impaired to non-impaired using latent modelling is lower than when using clinical criteria of mild cognitive impairment (MCI). METHODS A mover-stayer LTA model with dementia as a distal outcome was specified to model transitions of ten neuropsychological measures over three annual waves in the Rush Memory and Aging Project (n = 1,661). The predictive validity of the mover-stayer status for incident Alzheimer's disease (AD) was then assessed. RESULTS We identified a five-class model across the three time-points: Mixed-Domain Impairment, Memory-Specific Impairment, Frontal Impairment, Average, and Superior Cognition. None of the individuals in the Impairment classes reverted to the Average or Superior classes. Conventional MCI classification identified 26.4% and 14.1% at Times 1 and 2 as false-positive cases. "Movers" had 87% increased risk of developing dementia compared to those classified as "Stayers". CONCLUSION Our findings support the use of latent variable modelling that incorporates comprehensive neuropsychological assessment to identify and classify cognitive impairment.
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Affiliation(s)
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA
| | | | | | - Mindy J Katz
- Albert Einstein College of Medicine, Bronx, NY, USA
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Balbim GM, Ajilore OA, Erickson KI, Lamar M, Aguiñaga S, Bustamante EE, Marquez DX. The Impact of the BAILAMOS™ Dance Program on Brain Functional Connectivity and Cognition in Older Latino Adults: A Pilot Study. JOURNAL OF COGNITIVE ENHANCEMENT 2021; 5:1-14. [PMID: 33748658 PMCID: PMC7968343 DOI: 10.1007/s41465-020-00185-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 07/17/2020] [Indexed: 12/12/2022]
Abstract
Dance is a culturally salient form of physical activity (PA) for older Latinos. Resting-state functional connectivity (FC) is a putative biomarker for age-related cognitive decline. We aimed to investigate the impact of the BAILAMOS™ dance program on FC in three brain functional networks (Default Mode [DMN], Frontoparietal [FPN], and Salience [SAL] networks), and cognition. Ten cognitively healthy older Latinos participated in the four-month BAILAMOS™ dance program. We assessed PA levels (self-reported and device-assessed) and estimated cardiorespiratory fitness, cognition, and resting-state FC via functional magnetic resonance imaging at baseline and post-intervention. We performed paired t-tests and Pearson correlations. Given the pilot nature of the study, significance levels were set at p < 0.05 and effect sizes are reported. We observed a significant increase in self-reported moderate leisure-time PA from pre- to post-intervention (t(9) = 3.16, p = 0.011, d = 0.66). FC within-FPN regions of interest (ROIs) significantly increased pre- to post-intervention (t(9) = 2.35, p = 0.043, d = 0.70). DMN ROIs showed an increase, with a moderate effect size, in the integration with other networks' ROIs (t(9) = 1.96, p = 0.081, d = 0.64) post-intervention. Increases in moderate leisure-time PA at post-intervention were associated with increases in the FC within-FPN (R = 0.79, p = 0.006). Our results suggest that dance might be a promising approach for improving age-related disruption of FC within- and between-networks commonly associated with cognitive decline.
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Affiliation(s)
- Guilherme M Balbim
- University of Illinois at Chicago, Department of Kinesiology and Nutrition, Chicago, Illinois, United States
| | - Olusola A Ajilore
- University of Illinois at Chicago, Department of Psychiatry, Chicago, Illinois, United States
| | - Kirk I Erickson
- University of Pittsburgh, Department of Psychology, Pittsburgh, Pennsylvania, United States
| | - Melissa Lamar
- Rush University, Division of Behavioral Sciences, Chicago, Illinois, United States
| | - Susan Aguiñaga
- University of Illinois at Urbana-Champaign, Department of Kinesiology and Community Health, Champaign, Illinois, United States
| | - Eduardo E Bustamante
- University of Illinois at Chicago, Department of Kinesiology and Nutrition, Chicago, Illinois, United States
| | - David X Marquez
- University of Illinois at Chicago, Department of Kinesiology and Nutrition, Chicago, Illinois, United States
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A Comprehensive Meta-analysis on Short-term and Working Memory Dysfunction in Parkinson's Disease. Neuropsychol Rev 2021; 31:288-311. [PMID: 33523408 DOI: 10.1007/s11065-021-09480-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/05/2021] [Indexed: 12/29/2022]
Abstract
A previous meta-analysis demonstrated short-term memory (STM) and working memory (WM) dysfunction in patients with Parkinson's disease (PD). However, considerable research on the topic that calls into question the extent of such impairments in PD has since been published. The aim of the present quantitative review was to provide the largest statistical overview on STM and WM dysfunction in Parkinson's disease (PD), while simultaneously providing novel insights on moderating factors of effect size heterogeneity in PD. The systematic literature search in PubMed, PsycINFO, PsycArticles, Scopus and Web of Science databases allowed us to estimate 350 effect sizes from 145 empirical studies that reported STM and WM scores for patients with PD against healthy controls. The outcomes indicated general dysfunction in the visuospatial domain and poor verbal WM in PD. Subgroup analyses suggested that mild cognitive impairment is associated with STM and WM difficulties in PD. Furthermore, meta-regression analyses revealed that disease duration accounted for more than 80% of the visuospatial STM effect size variance (β = 0.136, p < .001, R2 = .8272), larger daily levodopa equivalent dose was associated with WM dysfunction (verbal: β = -0.001, p = .016, R2 = .1812; visuospatial: β = 0.003, p = .069, R2 = .2340), and years of education partially explained the verbal STM effect size variance (β = -0.027, p = .040, R2 = .1171). Collectively, these findings advance our understanding of underlying factors that influence STM and WM functioning in PD, while at the same time providing novel directions for future research.
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Ye Z, Hanssen H, Steinhardt J, Tronnier V, Rasche D, Brüggemann N, Münte TF. Subthalamic Nucleus Stimulation Impairs Sequence Processing in Patients with Parkinson's Disease. JOURNAL OF PARKINSON'S DISEASE 2021; 11:1869-1879. [PMID: 34459415 DOI: 10.3233/jpd-212778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
BACKGROUND Maintaining and manipulating sequences online is essential for language and memory. In Parkinson's disease (PD), poor performance in sequencing tasks has been associated with basal ganglia dysfunction, especially subthalamic hyperactivity. OBJECTIVE This study is aimed to investigate the impact of high-frequency subthalamic nucleus (STN) deep brain stimulation (DBS) on sequence processing in PD. METHODS Twenty-nine patients with PD (17 women) completed a 'before/after' sentence task and a digit ordering task with STN DBS ON and OFF. In the sentence task, patients read a sequence of events expressed in the actual order of occurrence ('after' sentences) or reversed order ('before' sentences) for comprehension. In the digit task, patients recalled a sequence of ordered digits (ordered trials) or reordered and recalled random digits in ascending order (random trials). Volumes of tissue activated (VTAs) were estimated for the motor and associative STN. RESULTS Patients were slower with STN DBS ON versus OFF in both tasks, although their motor symptoms were significantly improved under DBS. In the sentence task, patients showed higher ordering-related reaction time costs ('before' > 'after') with DBS ON versus OFF. Moreover, patients with larger left associative VTAs, smaller total motor VTAs, and more daily exposure to dopaminergic drugs tended to show larger reaction time cost increases under DBS. In the digit ordering task, patients with too large or too small right associative VTAs tended to show larger reaction time cost increases under DBS. CONCLUSION Stimulating the STN, especially its associative part, might impair sequence processing in language and memory.
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Affiliation(s)
- Zheng Ye
- Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Henrike Hanssen
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Julia Steinhardt
- Department of Neurology, University of Lübeck, Lübeck, Germany
- Institute of Endocrinology and Diabetes, University of Lübeck, Lübeck, Germany
| | - Volker Tronnier
- Department of Neurosurgery, University of Lübeck, Lübeck, Germany
| | - Dirk Rasche
- Department of Neurosurgery, University of Lübeck, Lübeck, Germany
| | - Norbert Brüggemann
- Department of Neurology, University of Lübeck, Lübeck, Germany
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Lübeck, Lübeck, Germany
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Murphy K, Creux O. Examining the association between media multitasking, and performance on working memory and inhibition tasks. COMPUTERS IN HUMAN BEHAVIOR 2021. [DOI: 10.1016/j.chb.2020.106532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ye Z, Zhang G, Zhang Y, Li S, Liu N, Zhou X, Xiao W, Münte TF. The Role of the Subthalamic Nucleus in Sequential Working Memory in De Novo Parkinson's Disease. Mov Disord 2020; 36:87-95. [PMID: 33098597 PMCID: PMC7894467 DOI: 10.1002/mds.28344] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/24/2020] [Accepted: 09/27/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Deficits in maintaining and manipulating sequential information online can occur even in patients with mild Parkinson's disease. The subthalamic nucleus may play a modulatory role in the neural system for sequential working memory, which also includes the lateral prefrontal cortex. OBJECTIVES The objective of this study was to investigate neural markers of sequential working memory deficits in patients with de novo Parkinson's disease. METHODS A total of 50 patients with de novo Parkinson's disease and 50 healthy controls completed a digit ordering task during functional magnetic resonance imaging scanning. The task separated the maintenance ("pure recall") and manipulation of sequences ("reorder & recall" vs "pure recall"). RESULTS In healthy controls, individual participants' task accuracy was predicted by the regional activation and functional connectivity of the subthalamic nucleus. Healthy participants who showed lower subthalamic nucleus activation and stronger subthalamic nucleus connectivity with the putamen performed more accurately in maintaining sequences ("pure recall"). Healthy participants who showed greater ordering-related subthalamic nucleus activation change exhibited smaller accuracy costs in manipulating sequences ("reorder & recall" vs "pure recall"). Patients performed less accurately than healthy controls, especially in "reorder & recall" trials, accompanied by an overactivation in the subthalamic nucleus and a loss of synchrony between the subthalamic nucleus and putamen. Individual patients' task accuracy was predicted only by the subthalamic nucleus connectivity. The contribution of the subthalamic nucleus activation or activation change was absent. We observed no change in the lateral prefrontal cortex. CONCLUSIONS The overactivation and weakened functional connectivity of the subthalamic nucleus are the neural markers of sequential working memory deficits in de novo Parkinson's disease. © 2020 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Zheng Ye
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Guanyu Zhang
- Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yingshuang Zhang
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Shuaiqi Li
- Center for Brain and Cognitive Sciences, School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - Na Liu
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Xiaolin Zhou
- Center for Brain and Cognitive Sciences, School of Psychological and Cognitive Sciences, Peking University, Beijing, China.,PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - Weizhong Xiao
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, Lübeck, Germany
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Schneider JS, Marshall CA, Keibel L, Snyder NW, Hill MP, Brotchie JM, Johnston TH, Waterhouse BD, Kortagere S. A novel dopamine D3R agonist SK609 with norepinephrine transporter inhibition promotes improvement in cognitive task performance in rodent and non-human primate models of Parkinson's disease. Exp Neurol 2020; 335:113514. [PMID: 33141071 DOI: 10.1016/j.expneurol.2020.113514] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/29/2020] [Accepted: 10/20/2020] [Indexed: 12/18/2022]
Abstract
Mild cognitive impairment is present in a number of neurodegenerative disorders including Parkinson's disease (PD). Mild cognitive impairment in PD (PD-MCI) often manifests as deficits in executive functioning, attention, and spatial and working memory. Clinical studies have suggested that the development of mild cognitive impairment may be an early symptom of PD and may even precede the onset of motor impairment by several years. Dysfunction in several neurotransmitter systems, including dopamine (DA), norepinephrine (NE), may be involved in PD-MCI, making it difficult to treat pharmacologically. In addition, many agents used to treat motor impairment in PD may exacerbate cognitive impairment. Thus, there is a significant unmet need to develop therapeutics that can treat both motor and cognitive impairments in PD. We have recently developed SK609, a selective, G-protein biased signaling agonist of dopamine D3 receptors. SK609 was successfully used to treat motor impairment and reduce levodopa-induced dyskinesia in a rodent model of PD. Further characterization of SK609 suggested that it is a selective norepinephrine transporter (NET) inhibitor with the ability to increase both DA and NE levels in the prefrontal cortex. Pharmacokinetic analysis of SK609 under systemic administration demonstrated 98% oral bioavailability and high brain distribution in striatum, hippocampus and prefrontal cortex. To evaluate the effects of SK609 on cognitive deficits of potential relevance to PD-MCI, we used unilateral 6-hydroxydopamine (6-OHDA) lesioned rats and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated cynomolgus macaques, with deficits in performance in a sustained attention and an object retrieval task, respectively. SK609 dose dependently improved the performance of 6-OHDA-lesioned rats, with peak performance achieved using a 4 mg/kg dose. This improvement was predominantly due to a significant reduction in the number of misses and false alarm errors, contributing to an increase in sustained attention. In MPTP-lesioned monkeys, this same dose also improved performance in an object retrieval task, significantly reducing cognitive errors (barrier reaches) and motor errors (fine motor dexterity problems). These data demonstrate that SK609 with its unique pharmacological effects on modulating both DA and NE can ameliorate cognitive impairment in PD models and may provide a therapeutic option to treat both motor and cognitive impairment in PD patients.
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Affiliation(s)
- Jay S Schneider
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Courtney A Marshall
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Lauren Keibel
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Nathaniel W Snyder
- Center for Metabolic Disease Research, Department of Microbiology and Immunology, Temple University Lewis Katz School of Medicine, Philadelphia, PA 19147, USA
| | | | | | | | - Barry D Waterhouse
- Department of Cell Biology and Neuroscience, Rowan University School of Osteopathic Medicine, Stratford, NJ 08084, USA
| | - Sandhya Kortagere
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19129, USA.
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Malar DS, Prasanth MI, Brimson JM, Sharika R, Sivamaruthi BS, Chaiyasut C, Tencomnao T. Neuroprotective Properties of Green Tea ( Camellia sinensis) in Parkinson's Disease: A Review. Molecules 2020; 25:E3926. [PMID: 32867388 PMCID: PMC7504552 DOI: 10.3390/molecules25173926] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/14/2020] [Accepted: 08/14/2020] [Indexed: 12/21/2022] Open
Abstract
Neurodegenerative disease is a collective term given for the clinical condition, which results in progressive degeneration of neurons and the loss of functions associated with the affected brain region. Apart from the increase in age, neurodegenerative diseases are also partly affected by diet and lifestyle practices. Parkinson's disease (PD) is a slow onset neurodegenerative disorder and the second most common neurodegenerative disease, which affects the motor system. Although there is no prescribed treatment method to prevent and cure PD, clinical procedures help manage the disease symptoms. Green tea polyphenols are known for several health benefits, including antioxidant, anti-inflammatory, and neuroprotective activity. The current manuscript summarizes the possible mechanisms of neuroprotective potential of green tea with a special focus on PD. Studies have suggested that the consumption of green tea protects against free-radicals, inflammation, and neuro-damages. Several in vivo studies aid in understanding the overall mechanism of green tea. However, the same dose may not be sufficient in humans to elicit similar effects due to complex physiological, social, and cultural development. Future research focused on more clinical trials could identify an optimum dose that could impart maximum health benefits to impart neuroprotection in PD.
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Affiliation(s)
- Dicson Sheeja Malar
- Age-Related Inflammation and Degeneration Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (D.S.M.); (M.I.P.); (J.M.B.)
| | - Mani Iyer Prasanth
- Age-Related Inflammation and Degeneration Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (D.S.M.); (M.I.P.); (J.M.B.)
| | - James Michael Brimson
- Age-Related Inflammation and Degeneration Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (D.S.M.); (M.I.P.); (J.M.B.)
| | - Rajasekharan Sharika
- 309, Vrinda, 10th Cross, Railway Layout, Vijayanagar 2nd Stage, Mysuru, Karnataka 570016, India;
| | - Bhagavathi Sundaram Sivamaruthi
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (B.S.S.); (C.C.)
| | - Chaiyavat Chaiyasut
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (B.S.S.); (C.C.)
| | - Tewin Tencomnao
- Age-Related Inflammation and Degeneration Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; (D.S.M.); (M.I.P.); (J.M.B.)
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Dias SB, Grammatikopoulou A, Diniz JA, Dimitropoulos K, Grammalidis N, Zilidou V, Savvidis T, Konstantinidis E, Bamidis PD, Jaeger H, Stadtschnitzer M, Silva H, Telo G, Ioakeimidis I, Ntakakis G, Karayiannis F, Huchet E, Hoermann V, Filis K, Theodoropoulou E, Lyberopoulos G, Kyritsis K, Papadopoulos A, Delopoulos A, Trivedi D, Chaudhuri KR, Klingelhoefer L, Reichmann H, Bostantzopoulou S, Katsarou Z, Iakovakis D, Hadjidimitriou S, Charisis V, Apostolidis G, Hadjileontiadis LJ. Innovative Parkinson's Disease Patients' Motor Skills Assessment: The i-PROGNOSIS Paradigm. FRONTIERS IN COMPUTER SCIENCE 2020. [DOI: 10.3389/fcomp.2020.00020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Godi M, Arcolin I, Giardini M, Corna S, Schieppati M. Responsiveness and minimal clinically important difference of the Mini-BESTest in patients with Parkinson's disease. Gait Posture 2020; 80:14-19. [PMID: 32464537 DOI: 10.1016/j.gaitpost.2020.05.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 04/30/2020] [Accepted: 05/06/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Balance problems in Parkinson's Disease (PD) require appropriate evaluation. While the Mini-BESTest is commonly used to assess dynamic balance, some of its psychometric properties have not yet been addressed. RESEARCH QUESTION What is the responsiveness and the Minimal Clinically Important Difference (MCID) of the Mini-BESTest in patients with PD? METHODS One-hundred forty-eight patients with PD underwent a treatment specific for balance skills (1-h session, three times/week for four weeks). All patients were initially evaluated with the Mini-BESTest and Activities-Specific Balance Confidence scale 5-levels (ABC-5L). Post-treatment, patients were assessed with the Mini-BESTest, ABC-5L and Global Rating of Change (GRC, both patient- and physiotherapist-rated). Responsiveness to treatment and MCID were calculated with distribution and anchor-based methods: effect size, area under the curve (AUC) of receiver operating characteristics (ROC), and correlations between evaluations (change in score of Mini-BESTest, ABC-5L, GRC). Eleven a priori hypotheses were formulated for testing responsiveness. RESULTS The effect size of treatment measured with the Mini-BESTest was 0.44, revealing moderate responsiveness. AUCs were 0.75, 0.82 and 0.59 for the patient-rated GRC, physiotherapist-rated GRC and ABC-5L, respectively. There was a moderate correlation between changes in the Mini-BESTest and patient-rated (rs = 0.42) or physiotherapist-rated (rs = 0.62) GRC scores. Conversely, a low correlation (rs = 0.17) was found between changes in the Mini-BESTest and ABC-5L. Consequently, 72.7% of hypotheses were met. The Mini-BESTest MCID was between 3.4 and 4.0 when calculated with distribution and anchor-based methods, respectively. SIGNIFICANCE The Mini-BESTest showed moderate responsiveness for detecting treatment-related improvement in dynamic balance. A 4.0-point MCID value is useful to identify clinical effects of balance rehabilitation in a single patient with PD. Values ranging from 3.4 and 4.0 are recommended for interpretation of results at a group level.
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Affiliation(s)
- Marco Godi
- Division of Physical Medicine and Rehabilitation, ICS Maugeri SPA SB, IRCCS, Institute of Veruno, Italy.
| | - Ilaria Arcolin
- Division of Physical Medicine and Rehabilitation, ICS Maugeri SPA SB, IRCCS, Institute of Veruno, Italy.
| | - Marica Giardini
- Division of Physical Medicine and Rehabilitation, ICS Maugeri SPA SB, IRCCS, Institute of Veruno, Italy.
| | - Stefano Corna
- Division of Physical Medicine and Rehabilitation, ICS Maugeri SPA SB, IRCCS, Institute of Veruno, Italy.
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Zhao Q, Pfefferbaum A, Podhajsky S, Pohl KM, Sullivan EV. Accelerated aging and motor control deficits are related to regional deformation of central cerebellar white matter in alcohol use disorder. Addict Biol 2020; 25:e12746. [PMID: 30932270 DOI: 10.1111/adb.12746] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 02/14/2019] [Accepted: 02/19/2019] [Indexed: 12/18/2022]
Abstract
The World Health Organization estimates a 12-month prevalence rate of 8+% for an alcohol use disorder (AUD) diagnosis in people age 15 years and older in the United States and Europe, presenting significant health risks that have the potential of accelerating age-related functional decline. According to neuropathological studies, white matter systems of the cerebellum are vulnerable to chronic alcohol dependence. To pursue the effect of AUD on white matter structure and functions in vivo, this study used T1-weighted, magnetic resonance imaging (MRI) to quantify the total corpus medullare of the cerebellum and a finely grained analysis of its surface in 135 men and women with AUD (mean duration of abstinence, 248 d) and 128 age- and sex-matched control participants; subsets of these participants completed motor testing. We identified an AUD-related volume deficit and accelerated aging in the total corpus medullare. Novel deformation-based surface morphometry revealed regional shrinkage of surfaces adjacent to lobules I-V, lobule IX, and vermian lobule X. In addition, accelerated aging was detected in the regional surface areas adjacent to lobules I-V, lobule VI, lobule VIIB, and lobules VIII, IX, and X. Sex differences were not identified for any measure. For both volume-based and surface-based analyses, poorer performance in gait and balance, manual dexterity, and grip strength were linked to greater regional white matter structural deficits. Our results suggest that local deformation of the corpus medullare has the potential of identifying structurally and functionally segregated networks affected in AUD.
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Affiliation(s)
- Qingyu Zhao
- Department of Psychiatry and Behavioral SciencesStanford University School of Medicine Stanford CA USA
| | - Adolf Pfefferbaum
- Department of Psychiatry and Behavioral SciencesStanford University School of Medicine Stanford CA USA
- Center for Health SciencesSRI International Menlo Park CA USA
| | - Simon Podhajsky
- Center for Health SciencesSRI International Menlo Park CA USA
| | - Kilian M. Pohl
- Center for Health SciencesSRI International Menlo Park CA USA
| | - Edith V. Sullivan
- Department of Psychiatry and Behavioral SciencesStanford University School of Medicine Stanford CA USA
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Dynamics of impulsive–compulsive behaviors in early Parkinson’s disease: a prospective study. J Neurol 2020; 267:1127-1136. [DOI: 10.1007/s00415-019-09692-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 01/25/2023]
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Ye Z, Zhang G, Li S, Zhang Y, Xiao W, Zhou X, Münte TF. Age differences in the fronto-striato-parietal network underlying serial ordering. Neurobiol Aging 2019; 87:115-124. [PMID: 31918954 DOI: 10.1016/j.neurobiolaging.2019.12.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 12/05/2019] [Accepted: 12/07/2019] [Indexed: 11/30/2022]
Abstract
Maintaining the ability to arrange thoughts and actions in an appropriate serial order is crucial for complex behavior. We aimed to investigate age differences in the fronto-striato-parietal network underlying serial ordering using functional magnetic resonance imaging. We exposed 25 young and 27 older healthy adults to a digit ordering task, where they had to reorder and recall sequential digits or simply to recall them. We detected a network comprising of the lateral and medial prefrontal, posterior parietal, and striatal regions. In young adults, the prefrontal and parietal regions were more activated and more strongly connected with the supplementary motor area for "reorder & recall" than "pure recall" trials (psychophysiological interaction, PPI). In older adults, the prefrontal and parietal activations were elevated, but the PPI was attenuated. Individual adults who had a stronger PPI performed more accurately in "reorder & recall" trials. The decreased PPI appeared to be compensated by increased physiological correlations between the prefrontal/parietal cortex and the striatum, and by that between the striatum and the supplementary motor area.
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Affiliation(s)
- Zheng Ye
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.
| | - Guanyu Zhang
- Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Shuaiqi Li
- Center for Brain and Cognitive Sciences, School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - Yingshuang Zhang
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Weizhong Xiao
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Xiaolin Zhou
- Center for Brain and Cognitive Sciences, School of Psychological and Cognitive Sciences, Peking University, Beijing, China; PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, Lübeck, Germany.
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Optical coherence tomography and cognitive dysfunction in Parkinson disease. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2019. [DOI: 10.1186/s41983-019-0097-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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46
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Iyer KK, Au TR, Angwin AJ, Copland DA, Dissanayaka NNW. Source activity during emotion processing and its relationship to cognitive impairment in Parkinson's disease. J Affect Disord 2019; 253:327-335. [PMID: 31078832 DOI: 10.1016/j.jad.2019.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/08/2019] [Accepted: 05/06/2019] [Indexed: 02/09/2023]
Abstract
BACKGROUND Neural mechanisms contributing to an underlying cognitive impairment in Parkinson's disease (PD) are poorly understood. An effective method to probe cognitive processing deficits in PD is the examination of brain activity during emotional processes, particularly in explicit language emotion recognition contexts. METHODS The present study utilised cortical source imaging of event related potentials (ERP) from electroencephalography (EEG) to evaluate valence judgements on negative and neutral target words in an automatic affective priming paradigm. Fifty non-demented PD patients, unmedicated for depression or anxiety, completed affective priming tasks during EEG monitoring. Cognitive impairment was measured using the validated Parkinson's Disease-Cognitive Rating Scale (PD-CRS). RESULTS Results reveal that compared to healthy age-matched controls, PD patients demonstrate a reduced N400 activation during affective priming tasks in bilateral regions of the middle frontal gyrus (MFG), inferior parietal lobule (IPL) and, notably, have a late wave ERP component (LPP) in left MFG, present between 600 and 800 ms, following family-wise error correction (pFWE < 0.05). LPP in PD patients were significantly associated with PD-CRS scores. LIMITATIONS Although affective priming paradigms are an effective means for various domains of cognition, it is not a focused cognitive behavioural test for cognitive dysfunction. Our study is thus limited to a surrogate measure of cognitive dysfunction via examination of emotional word processing cues. CONCLUSIONS These findings suggest that source imaging methods with ERP paradigms in PD are effective in identifying delayed cognitive processes in PD.
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Affiliation(s)
- Kartik K Iyer
- UQ Centre for Clinical Research, Faculty of Medicine, Royal Brisbane and Women's Hospital, The University of Queensland, Building 71/918, Herston, QLD 4029, Brisbane, Australia; School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD 4067, Brisbane, Australia
| | - Tiffany R Au
- UQ Centre for Clinical Research, Faculty of Medicine, Royal Brisbane and Women's Hospital, The University of Queensland, Building 71/918, Herston, QLD 4029, Brisbane, Australia
| | - Anthony J Angwin
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD 4067, Brisbane, Australia
| | - David A Copland
- UQ Centre for Clinical Research, Faculty of Medicine, Royal Brisbane and Women's Hospital, The University of Queensland, Building 71/918, Herston, QLD 4029, Brisbane, Australia; School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD 4067, Brisbane, Australia
| | - Nadeeka N W Dissanayaka
- UQ Centre for Clinical Research, Faculty of Medicine, Royal Brisbane and Women's Hospital, The University of Queensland, Building 71/918, Herston, QLD 4029, Brisbane, Australia; Department of Neurology, Royal Brisbane and Women's Hospital, Herston, QLD 4029, Brisbane, Australia; School of Psychology, The University of Queensland, St Lucia, QLD 4067, Brisbane, Australia.
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Saravanan V, Hoffmann LA, Jacob AL, Berman GJ, Sober SJ. Dopamine Depletion Affects Vocal Acoustics and Disrupts Sensorimotor Adaptation in Songbirds. eNeuro 2019; 6:ENEURO.0190-19.2019. [PMID: 31126913 PMCID: PMC6565373 DOI: 10.1523/eneuro.0190-19.2019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 12/28/2022] Open
Abstract
Dopamine is hypothesized to convey error information in reinforcement learning tasks with explicit appetitive or aversive cues. However, during motor skill learning feedback signals arise from an animal's evaluation of sensory feedback resulting from its own behavior, rather than any external reward or punishment. It has previously been shown that intact dopaminergic signaling from the ventral tegmental area/substantia nigra pars compacta (VTA/SNc) complex is necessary for vocal learning when songbirds modify their vocalizations to avoid hearing distorted auditory feedback (playbacks of white noise). However, it remains unclear whether dopaminergic signaling underlies vocal learning in response to more naturalistic errors (pitch-shifted feedback delivered via headphones). We used male Bengalese finches (Lonchura striata var. domestica) to test the hypothesis that the necessity of dopamine signaling is shared between the two types of learning. We combined 6-hydroxydopamine (6-OHDA) lesions of dopaminergic terminals within Area X, a basal ganglia nucleus critical for song learning, with a headphones learning paradigm that shifted the pitch of auditory feedback and compared their learning to that of unlesioned controls. We found that 6-OHDA lesions affected song behavior in two ways. First, over a period of days lesioned birds systematically lowered their pitch regardless of the presence or absence of auditory errors. Second, 6-OHDA lesioned birds also displayed severe deficits in sensorimotor learning in response to pitch-shifted feedback. Our results suggest roles for dopamine in both motor production and auditory error processing, and a shared mechanism underlying vocal learning in response to both distorted and pitch-shifted auditory feedback.
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Affiliation(s)
- Varun Saravanan
- Neuroscience Graduate Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA 30322
| | - Lukas A Hoffmann
- Neuroscience Graduate Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA 30322
| | - Amanda L Jacob
- Department of Biology, Emory University, Atlanta, GA 30322
| | - Gordon J Berman
- Department of Biology, Emory University, Atlanta, GA 30322
- Department of Physics, Emory University, Atlanta, GA 30322
| | - Samuel J Sober
- Department of Biology, Emory University, Atlanta, GA 30322
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Yamauchi Y, Aoki S, Koike J, Hanzawa N, Hashimoto K. Motor and cognitive development of children with Down syndrome: The effect of acquisition of walking skills on their cognitive and language abilities. Brain Dev 2019; 41:320-326. [PMID: 30503574 DOI: 10.1016/j.braindev.2018.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 11/10/2018] [Accepted: 11/16/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE This study investigated the relationship between motor and cognitive/language development in children with Down syndrome (DS). We also tested the hypothesis that acquisition of walking skills facilitates later cognitive/language development. METHODS Participants were 156 children with DS who were less than 48 months old and had undergone a health checkup by medical doctors and received rehabilitation treatment between April 2013 and March 2017 in Yokohama, Japan. To assess their development, the Kyoto Scale of Psychological Development (KSPD) 2001 was used, which measures development in three subdomains: Posture-Motor (P-M), Cognitive-Adaptive (C-A), and Language-Social (L-S). To investigate the relationship between motor and cognitive/language development, partial correlation analyses were conducted that controlled for participants' age. To test the effect of achieving walking skills, regression analyses were conducted using only data from participants who took the KSPD at least twice and could not walk at the initial test. RESULTS P-M developmental age (DA) was significantly and positively correlated with both C-A DA and L-S DA in children 1-3 years old. The relationship strengthened with increased age. Acquisition of walking skills had a significant positive effect on both the C-A DA and L-S DA at the second test when controlling for the C-A DA and L-S DA at the first test and age at the second test. CONCLUSION Motor development was correlated with both cognitive and language development in young children with DS. Results also suggested that achievement of walking could facilitate later cognitive/language development in children with DS.
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Affiliation(s)
| | - Sayaka Aoki
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Japan.
| | - Junko Koike
- Yokohama Rehabilitation Center in Hokubu Area for Children, Japan
| | - Naomi Hanzawa
- Yokohama Rehabilitation Center in Konan Area for Children, Japan
| | - Keiji Hashimoto
- Division of Rehabilitation Medicine and Developmental Evaluation Center, National Center for Child Health and Development, Japan
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Wilson RS, Yang J, Yu L, Leurgans SE, Capuano AW, Schneider JA, Bennett DA, Boyle PA. Postmortem neurodegenerative markers and trajectories of decline in cognitive systems. Neurology 2019; 92:e831-e840. [PMID: 30674595 PMCID: PMC6396970 DOI: 10.1212/wnl.0000000000006949] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 10/15/2018] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE To assess whether neurodegenerative pathologies are differentially related to trajectories of change in different cognitive abilities. METHODS At annual intervals for up to 21 years, 915 older participants in a longitudinal clinical-pathologic cohort study completed a battery of 15 tests from which previously established composite measures of episodic memory, semantic memory, working memory, and perceptual speed were derived. At death, they underwent a neuropathologic examination to quantify Alzheimer disease pathology, Lewy bodies, transactive response DNA-binding protein 43 (TDP-43) pathology, and hippocampal sclerosis plus multiple markers of cerebrovascular disease. Time-varying effect models were used to assess change over time in the relation of neuropathologic markers to cognitive trajectories. RESULTS Controlling for pathology, decline in perceptual speed was evident about 15 years before death; modest decline in semantic and working memory occurred later; and there was little change in episodic memory. Each neurodegenerative marker was associated with lower episodic memory function beginning about 10 to 16 years before death. As time before death decreased, Alzheimer disease pathology, Lewy bodies, and hippocampal sclerosis were associated with impairment in other cognitive domains but the association of TDP-43 pathology with cognition continued to be mainly confined to episodic memory. CONCLUSIONS The results suggest that episodic memory impairment is an early sign of multiple neurodegenerative conditions, which primarily differ in their associations with other cognitive systems.
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Affiliation(s)
- Robert S Wilson
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL.
| | - Jingyun Yang
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
| | - Lei Yu
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
| | - Sue E Leurgans
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
| | - Ana W Capuano
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
| | - Julie A Schneider
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
| | - David A Bennett
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
| | - Patricia A Boyle
- From the Departments of Neurological Sciences (R.S.W., J.Y., L.Y., S.E.L., A.W.C., J.A.S., D.A.B.), Behavioral Sciences (R.S.W., P.A.B.), and Pathology (J.A.S.), Rush University Medical Center, Rush Alzheimer's Disease Center, Chicago, IL
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50
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Olson M, Lockhart TE, Lieberman A. Motor Learning Deficits in Parkinson's Disease (PD) and Their Effect on Training Response in Gait and Balance: A Narrative Review. Front Neurol 2019; 10:62. [PMID: 30792688 PMCID: PMC6374315 DOI: 10.3389/fneur.2019.00062] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 01/17/2019] [Indexed: 01/30/2023] Open
Abstract
Parkinson's disease (PD) is a neurological disorder traditionally associated with degeneration of the dopaminergic neurons within the substantia nigra, which results in bradykinesia, rigidity, tremor, and postural instability and gait disability (PIGD). The disorder has also been implicated in degradation of motor learning. While individuals with PD are able to learn, certain aspects of learning, especially automatic responses to feedback, are faulty, resulting in a reliance on feedforward systems of movement learning and control. Because of this, patients with PD may require more training to achieve and retain motor learning and may require additional sensory information or motor guidance in order to facilitate this learning. Furthermore, they may be unable to maintain these gains in environments and situations in which conscious effort is divided (such as dual-tasking). These shortcomings in motor learning could play a large part in degenerative gait and balance symptoms often seen in the disease, as patients are unable to adapt to gradual sensory and motor degradation. Research has shown that physical and exercise therapy can help patients with PD to adapt new feedforward strategies to partially counteract these symptoms. In particular, balance, treadmill, resistance, and repeated perturbation training therapies have been shown to improve motor patterns in PD. However, much research is still needed to determine which of these therapies best alleviates which symptoms of PIGD, the needed dose and intensity of these therapies, and long-term retention effects. The benefits of such technologies as augmented feedback, motorized perturbations, virtual reality, and weight-bearing assistance are also of interest. This narrative review will evaluate the effect of PD on motor learning and the effect of motor learning deficits on response to physical therapy and training programs, focusing specifically on features related to PIGD. Potential methods to strengthen therapeutic effects will be discussed.
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Affiliation(s)
- Markey Olson
- Locomotion Research Laboratory, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United States
- Muhammad Ali Movement Disorders Clinic, St. Joseph's Hospital and Medical Center, Barrow Neurological Institute, Phoenix, AZ, United States
| | - Thurmon E. Lockhart
- Locomotion Research Laboratory, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United States
| | - Abraham Lieberman
- Muhammad Ali Movement Disorders Clinic, St. Joseph's Hospital and Medical Center, Barrow Neurological Institute, Phoenix, AZ, United States
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