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Belskaya A, Kurzina N, Savchenko A, Sukhanov I, Gromova A, Gainetdinov RR, Volnova A. Rats Lacking the Dopamine Transporter Display Inflexibility in Innate and Learned Behavior. Biomedicines 2024; 12:1270. [PMID: 38927477 PMCID: PMC11200708 DOI: 10.3390/biomedicines12061270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/30/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Playing a key role in the organization of striatal motor output, the dopamine (DA)-ergic system regulates both innate and complex learned behaviors. Growing evidence clearly indicates the involvement of the DA-ergic system in different forms of repetitive (perseverative) behavior. Some of these behaviors accompany such disorders as obsessive-compulsive disorder (OCD), Tourette's syndrome, schizophrenia, and addiction. In this study, we have traced how the inflexibility of repetitive reactions in the recently developed animal model of hyper-DA-ergia, dopamine transporter knockout rats (DAT-KO rats), affects the realization of innate behavior (grooming) and the learning of spatial (learning and reversal learning in T-maze) and non-spatial (extinction of operant reaction) tasks. We found that the microstructure of grooming in DAT-KO rats significantly differed in comparison to control rats. DAT-KO rats more often demonstrated a fixed syntactic chain, making fewer errors and very rarely missing the chain steps in comparison to control rats. DAT-KO rats' behavior during inter-grooming intervals was completely different to the control animals. During learning and reversal learning in the T-maze, DAT-KO rats displayed pronounced patterns of hyperactivity and perseverative (stereotypical) activity, which led to worse learning and a worse performance of the task. Most of the DAT-KO rats could not properly learn the behavioral task in question. During re-learning, DAT-KO rats demonstrated rigid perseverative activity even in the absence of any reinforcement. In operant tasks, the mutant rats demonstrated poor extinction of operant lever pressing: they continued to perform lever presses despite no there being reinforcement. Our results suggest that abnormally elevated DA levels may be responsible for behavioral rigidity. It is conceivable that this phenomenon in DAT-KO rats reflects some of the behavioral traits observed in clinical conditions associated with endogenous or exogenous hyper-DA-ergia, such as schizophrenia, substance abuse, OCD, patients with Parkinson disease treated with DA mimetics, etc. Thus, DAT-KO rats may be a valuable behavioral model in the search for new pharmacological approaches to treat such illnesses.
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Affiliation(s)
- Anastasia Belskaya
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, Russia; (A.B.)
| | - Natalia Kurzina
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, Russia; (A.B.)
| | - Artem Savchenko
- Valdman Institute of Pharmacology, Pavlov First St. Petersburg State Medical University, Saint Petersburg 197022, Russia
| | - Ilya Sukhanov
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, Russia; (A.B.)
- Valdman Institute of Pharmacology, Pavlov First St. Petersburg State Medical University, Saint Petersburg 197022, Russia
| | - Arina Gromova
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, Russia; (A.B.)
- Biological Faculty, Saint Petersburg State University, Saint Petersburg 199034, Russia
| | - Raul R. Gainetdinov
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, Russia; (A.B.)
- Saint Petersburg University Hospital, Saint Petersburg 190121, Russia
| | - Anna Volnova
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, Russia; (A.B.)
- Biological Faculty, Saint Petersburg State University, Saint Petersburg 199034, Russia
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Debove I, Paschen S, Amstutz D, Cardoso F, Corvol JC, Fung VSC, Lang AE, Martinez Martin P, Rodríguez-Oroz MC, Weintraub D, Krack P, Deuschl G. Management of Impulse Control and Related Disorders in Parkinson's Disease: An Expert Consensus. Mov Disord 2024; 39:235-248. [PMID: 38234035 DOI: 10.1002/mds.29700] [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: 08/08/2023] [Revised: 10/23/2023] [Accepted: 12/13/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND Impulse-control and related behavioral disorders (ICBDs) significantly impact the lives of Parkinson's disease (PD) patients and caregivers, with lasting consequences if undiagnosed and untreated. While ICBD pathophysiology and risk factors are well-studied, a standardized severity definition and treatment evidence remain elusive. OBJECTIVE This work aimed to establish international expert consensus on ICBD treatment strategies. To comprehensively address diverse treatment availabilities, experts from various continents were included. METHODS From 2021 to 2023, global movement disorders specialists engaged in a Delphi process. A core expert group initiated surveys, involving a larger panel in three iterations, leading to refined severity definitions and treatment pathways. RESULTS Experts achieved consensus on defining ICBD severity, emphasizing regular PD patient screenings for early detection. General treatment recommendations focused on continuous monitoring, collaboration with significant others, and seeking specialist advice for legal or financial challenges. For mild to severe ICBDs, gradual reduction in dopamine agonists was endorsed, followed by reductions in other PD medications. Second-line treatment strategies included diverse approaches like reversing the last medication change, cognitive behavior therapy, subthalamic nucleus deep brain stimulation, and specific medications like quetiapine, clozapine, and antidepressants. The panel reached consensus on distinct treatment pathways for punding and dopamine dysregulation syndrome, formulating therapy recommendations. Comprehensive discussions addressed management strategies for the exacerbation of either motor or non-motor symptoms following the proposed treatments. CONCLUSION The consensus offers in-depth insights into ICBD management, presenting clear severity criteria and expert consensus treatment recommendations. The study highlights the critical need for further research to enhance ICBD management. © 2024 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Ines Debove
- Department of Neurology, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Steffen Paschen
- Department of Neurology, University Hospital Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Deborah Amstutz
- Department of Neurology, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Francisco Cardoso
- Movement Disorders Unit, Neurology Service, Internal Medicine Department, The Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Jean-Christophe Corvol
- Department of Neurology, Sorbonne Université, Paris Brain Institute (ICM), Inserm, CNRS, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
| | - Victor S C Fung
- Movement Disorders Unit, Department of Neurology, Westmead Hospital and Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Anthony E Lang
- Division of Neurology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Edmond J. Safra Program in Parkinson's Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Pablo Martinez Martin
- Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED), Carlos III Institute of Health, Madrid, Spain
| | | | - Daniel Weintraub
- Departments of Psychiatry and Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Parkinson's Disease Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA
| | - Paul Krack
- Department of Neurology, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Günther Deuschl
- Department of Neurology, University Hospital Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
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3
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Liang K, Li X, Ma J, Yang H, Shi X, Fan Y, Yang D, Guo D, Liu C, Dong L, Chang Q, Gu Q, Chen S, Li D. Predictors of dopamine dysregulation syndrome in patients with early Parkinson's disease. Neurol Sci 2023; 44:4333-4342. [PMID: 37452260 PMCID: PMC10641065 DOI: 10.1007/s10072-023-06956-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Dopamine dysregulation syndrome (DDS) is a complication of Parkinson's disease (PD) that seriously affects the quality of life of PD patients. Currently, the risk factors for DDS are poorly known, and it is critical to identify them in the early stages of PD. OBJECTIVE To explore the incidence of and risk factors for DDS in patients with early PD. METHODS A retrospective cohort study was conducted on the general data, clinical features, and imaging data of patients with early PD in the PPMI database. Multivariate Cox regression analysis was performed to analyze the risk factors for the development of DDS in patients with early PD, and Kaplan‒Meier curves examined the frequency and predictors of incident DDS symptoms. RESULTS At baseline, 2.2% (n = 6) of patients with early PD developed DDS, and the cumulative incidence rates of DDS during the 5-year follow-up period were 2.8%, 6.4%, 10.8%, 15.5%, and 18.7%, respectively. In the multivariate Cox regression model controlling for age, sex, and drug use, hypersexuality (HR = 3.088; 95% CI: 1.416~6.732; P = 0.005), compulsive eating (HR = 3.299; 95% CI: 1.665~6.534; P = 0.001), compulsive shopping (HR = 3.899; 95% CI: 1.769~8.593; P = 0.001), anxiety (HR = 4.018; 95% CI: 2.136~7.599; P < 0.01), and lower Hoehn-Yahr (H-Y) stage (HR = 0.278; 95% CI: 0.152~0.509; P < 0.01) were independent risk factors for DDS in patients with early PD. PD patients with DDS had lower DAT uptake values than those patients without DDS. CONCLUSION Early PD patients with hypersexuality, compulsive eating, compulsive shopping, anxiety, and lower H-Y stage were at increased risk for DDS. The occurrence of DDS may be related to the decrease in the average DAT uptake of the caudate and putamen.
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Affiliation(s)
- Keke Liang
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Xiaohuan Li
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Jianjun Ma
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China.
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China.
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China.
| | - Hongqi Yang
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China.
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China.
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China.
| | - Xiaoxue Shi
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Yongyan Fan
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Dawei Yang
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Dashuai Guo
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Chuanze Liu
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Linrui Dong
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Qingqing Chang
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Qi Gu
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Siyuan Chen
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Dongsheng Li
- Department of Neurology, Henan University People's Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou, China
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Silva C, Rebelo M, Chendo I. Case report: Dopamine Dysregulation Syndrome, mania, and compulsive buying in a patient with Parkinson's disease. Front Neurol 2023; 14:1290653. [PMID: 38053797 PMCID: PMC10694353 DOI: 10.3389/fneur.2023.1290653] [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: 09/07/2023] [Accepted: 10/30/2023] [Indexed: 12/07/2023] Open
Abstract
Neuropsychiatric symptoms and syndromes are among the most common non-motor symptoms of Parkinson's Disease but they are frequently unrecognized and untreated. Dopamine Dysregulation Syndrome is an uncommon complication of the treatment of Parkinson's disease, characterized by an addictive use of dopamine far more than the dosage required for treatment of objective motor impairment, leading to severe dyskinesia, euphoria, aggressivity, or psychosis. We present a paradigmatic case of Dopamine Dysregulation Syndrome, Mania, and Compulsive Buying in a 55-year-old male with Parkinson's Disease. We also reviewed the risk factors and the therapeutic management of Dopamine Dysregulation Syndrome in Parkinson's Disease.
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Affiliation(s)
- Carlos Silva
- Psychiatry Department, Department of Neurosciences, Hospital de Santa Maria, Lisbon, Portugal
- Clínica Universitária de Psiquiatria e Psicologia Médica, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Marta Rebelo
- Psychiatry Department, Department of Neurosciences, Hospital de Santa Maria, Lisbon, Portugal
| | - Inês Chendo
- Psychiatry Department, Department of Neurosciences, Hospital de Santa Maria, Lisbon, Portugal
- Clínica Universitária de Psiquiatria e Psicologia Médica, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Laboratory of Clinical Pharmacology and Therapeutics, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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Minibajeva O, Zeltiņa E, Karelis G, Kurjāne N, Ķēniņa V. Clinical Symptoms Influencing Parkinson's Patients' Quality of Life in Latvia: A Single-Center Cohort Study. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59050935. [PMID: 37241166 DOI: 10.3390/medicina59050935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Background and Objectives: Parkinson's disease (PD) is a chronic, progressive illness with a profound impact on health-related quality of life, and it is crucial to know what factors influence the quality of life throughout the course of the disease. This study aimed to evaluate PD patients' motor and non-motor symptoms to compare symptom severity between PD clinical phenotypes and to assess the impact of disease symptoms on quality of life in a cohort of Latvian patients. Materials and Methods: We evaluated 43 patients with Parkinson's disease. Fourteen patients had tremor dominant (TD) PD, twenty-five patients had postural instability/gait difficulty (PIGD), and four patients had a mixed phenotype. Results: The patients' mean age was 65.21 years, and the disease's mean duration was 7 years. The most common non-motor symptoms were fatigue (95.3%), sleep disturbance (83.7%), daytime sleepiness (83.7%), and pain and other sensations (81.4%). PIGD patients had a higher prevalence of depressed mood, daytime sleepiness, constipation, lightheadedness on standing, cognitive impairment, and severe gastrointestinal and urinary disturbances (as assessed using the SCOPA-AUT domains) compared with TD patients. A high prevalence of fatigue was assessed in both disease subtypes. Health-related quality of life significantly statistically correlated with MDS-UPDRS parts III and IV (r = 0.704), the Hoehn and Yahr scale (r = 0.723), as well as the SCOPA-AUT scale's gastrointestinal (r = 0.639), cardiovascular (r = 0.586), thermoregulatory (r = 0.566) and pupillomotor domains (r = 0.597). Conclusions: The severity of motor symptoms, as well as non-motor symptoms, such as fatigue, apathy, sleep problems and daytime sleepiness, pain, and disturbances in gastrointestinal and cardiovascular function, negatively affect PD patients' health-related quality of life. Thermoregulatory and pupillomotor symptoms also significantly affect PD patients' well-being.
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Affiliation(s)
- Olga Minibajeva
- Department of Doctoral Studies, Rīga Stradiņš University, LV-1007 Rīga, Latvia
- Department of Neurology and Neurosurgery, Riga East University Hospital, LV-1079 Rīga, Latvia
| | - Estere Zeltiņa
- Faculty of Medicine, Rīga Stradiņš University, LV-1007 Rīga, Latvia
| | - Guntis Karelis
- Department of Neurology and Neurosurgery, Riga East University Hospital, LV-1079 Rīga, Latvia
- Department of Infectology, Rīga Stradiņš University, LV-1006 Rīga, Latvia
| | - Nataļja Kurjāne
- Department of Biology and Microbiology, Rīga Stradiņš University, LV-1007 Rīga, Latvia
| | - Viktorija Ķēniņa
- Department of Biology and Microbiology, Rīga Stradiņš University, LV-1007 Rīga, Latvia
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Koschel J, Ray Chaudhuri K, Tönges L, Thiel M, Raeder V, Jost WH. Implications of dopaminergic medication withdrawal in Parkinson's disease. J Neural Transm (Vienna) 2021; 129:1169-1178. [PMID: 34324057 PMCID: PMC8319886 DOI: 10.1007/s00702-021-02389-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 07/21/2021] [Indexed: 12/17/2022]
Abstract
The trajectory of the use of dopamine replacement therapy (DRT) in Parkinson's disease (PD) is variable and doses may need to be increased, but also tapered. The plan for dose adjustment is usually done as per drug information recommendations from the licensing bodies, but there are no clear guidelines with regards to the best practice regarding the tapering off schedule given sudden dose reductions of drugs such as dopamine agonists may have serious adverse consequences. A systematic literature search was, therefore, performed to derive recommendations and the data show that there are no controlled studies or evidence-based recommendations how to taper or discontinue PD medication in a systematic manner. Most of the data were available on the dopamine agonist withdrawal syndrome (DAWS) and we found only two instructions on how to reduce pramipexole and rotigotine published by the EMA. We suggest that based on the available data, levodopa, dopamine agonists (DA), and amantadine should not be discontinued abruptly. Abrupt or sudden reduction of DA or amantadine in particular can lead to severe life-threatening withdrawal symptoms. Tapering off levodopa, COMT inhibitors, and MAO-B inhibitors may worsen motor and non-motor symptoms. Based on our clinical experience, we have proposed how to reduce PD medication and this work will form the basis of a future Delphi panel to define the recommendations in a consensus.
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Affiliation(s)
- J Koschel
- Parkinson-Klinik Ortenau, Kreuzbergstr. 12, 77709, Wolfach, Germany
| | - K Ray Chaudhuri
- Biomedical Research Centre, Institute of Psychiatry, Psychology and Neurosciences, King's College and Parkinson's Foundation Centre of Excellence, King's College Hospital, Denmark Hill, London, UK
| | - L Tönges
- Neurologische Klinik der Ruhr-Universität Bochum, Bochum, Germany
| | - M Thiel
- Parkinson-Klinik Ortenau, Kreuzbergstr. 12, 77709, Wolfach, Germany
| | - V Raeder
- Parkinson's Foundation Centre of Excellence, King's College Hospital, Denmark Hill, London, UK.,Department of Neurology, Technical University Dresden, Dresden, Germany
| | - W H Jost
- Parkinson-Klinik Ortenau, Kreuzbergstr. 12, 77709, Wolfach, Germany.
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Impulse control disorders and related behaviors in Parkinson's disease: risk factors, clinical and genetic aspects, and management. Curr Opin Neurol 2021; 34:547-555. [PMID: 33967198 DOI: 10.1097/wco.0000000000000955] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW To review recent findings and research directions on impulse control disorders and related behaviors (ICDRBs) in Parkinson's disease (PD). RECENT FINDINGS Longitudinal studies found that prevalence increases during PD progression, incident ICDRBs being around 10% per year in patients treated with dopaminergic therapies. Screening tools and severity scales already developed have been validated and are available in several countries and languages. The main clinical risk factors include young age, male gender, type, doses and duration of dopaminergic therapy, PD motor severity and dyskinesia, depression, anxiety, apathy, sleep disorders, and impulsivity traits. Genetic factors are suspected by a high estimated heritability, but individual genes and variants remain to be replicated. Management of ICDRBs is centered on dopamine agonist decrease, with the risk to develop withdrawal symptoms. Cognitive behavioral therapy and subthalamic nucleus deep brain stimulation also improve ICDRBs. In the perspective of precision medicine, new individual prediction models of these disorders have been proposed, but they need further independent replication. SUMMARY Regular monitoring of ICDRB during the course of PD is needed, particularly in the subject at high risk of developing these complications. Precision medicine will require the appropriate use of machine learning to be reached in the clinical setting.
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8
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Grassi G, Albani G, Terenzi F, Razzolini L, Ramat S. New pharmacological and neuromodulation approaches for impulsive-compulsive behaviors in Parkinson's disease. Neurol Sci 2021; 42:2673-2682. [PMID: 33852081 DOI: 10.1007/s10072-021-05237-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/07/2021] [Indexed: 12/15/2022]
Abstract
INTRODUCTION A significant proportion of patients with Parkinson's disease (PD) display a set of impulsive-compulsive behaviors at some point during the course of illness. These behaviors range from the so-called behavioral addictions to dopamine dysregulation syndrome, punding and hoarding disorders. These behaviors have been consistently linked to the use of dopaminergic medications used to treat PD motor symptoms (dopamine agonists, levodopa, and other agents) and less consistently to neuromodulation techniques such as deep brain stimulation (DBS). Since there are still no approved treatments for these conditions, their pharmacological management is still a big challenge for clinicians. METHODS We conducted an extensive review of current pharmacological and neuromodulation literature for the management of impulsive-compulsive disorders in PD patients. RESULTS Pharmacological treatment approaches for impulsive-compulsive behaviors and DDS in PD patients include reduction of levodopa (LD), reduction/cessation of dopamine agonist (DA), and initiation of infusion therapies (apomorphine infusion and duodopa). Also, atomoxetine, a noradrenergic agent approved for the treatment of attention deficit hyperactivity disorder, showed some interesting preliminary results but there is still a lack of controlled longitudinal studies. Finally, while DBS effects on impulsive-compulsive disorders are still controversial, non-invasive techniques (such as transcranial magnetic stimulation and transcranial direct current stimulation) could have a potential positive effect but, again, there is still a lack of controlled trials. CONCLUSION Managing impulsivity and compulsivity in PD patients is still a non-evidence-based challenge for clinicians. Controlled trials on promising approaches such as atomoxetine and non-invasive neuromodulation techniques are needed.
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Affiliation(s)
- Giacomo Grassi
- Brain Center Firenze, Viale Belfiore 36, 5014, Florence, Italy.
| | | | | | - Lorenzo Razzolini
- Brain Center Firenze, Viale Belfiore 36, 5014, Florence, Italy.,University of Florence, Florence, Italy
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9
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Sasikumar S, Matta R, Munhoz RP, Zurowski M, Poon YY, Hodaie M, Kalia SK, Lozano AM, Fasano A. Advanced Therapies for the Management of Dopamine Dysregulation Syndrome in Parkinson's Disease. Mov Disord Clin Pract 2021; 8:400-405. [PMID: 33816669 DOI: 10.1002/mdc3.13154] [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: 07/15/2020] [Revised: 12/23/2020] [Accepted: 01/07/2021] [Indexed: 11/11/2022] Open
Abstract
Background Dopamine Dysregulation Syndrome (DDS) is an adverse non-motor complication of dopamine replacement therapy in Parkinson's disease. The current literature on this syndrome is limited, and it remains underdiagnosed and challenging to manage. Objective To assess the role of advanced therapies in the management of DDS. Methods We performed a retrospective chart review and identified patients who fit the inclusion criteria for DDS. They were classified according to risk factors that have been identified in the literature, motor and complication scores, intervention (medical or surgical) and outcome. Multivariate analyses were performed to analyze these characteristics. Results Twenty-seven patients were identified (23 males, mean age of onset: 49 ± 8.8 years). Average levodopa equivalent daily dose was 1916.7 ± 804 mg and a history of impulse control disorders, psychiatric illness, and substance abuse was present in 89%, 70% and 3.7% of the patients, respectively. Overall 81.5% of patients had symptom resolution at follow up, on average 4.8 ± 3.5 years after management, with medication only (7/9), levodopa-carbidopa intestinal gel (1/3), deep brain stimulation of subthalamic nucleus (10/13), or globus pallidus pars interna (2/2). Reduction of medications occurred with deep brain stimulation of subthalamic nucleus (P = 0.01) but was associated with a relapse in two patients. Conclusion Although the small sample size of some subgroups limits our ability to draw meaningful conclusions, our results did not suggest superiority of a single treatment option. Advanced therapies including deep brain stimulation can be considered in patients with DDS refractory to conservative measures, but outcome is variable and relapse is possible.
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Affiliation(s)
| | | | - Renato P Munhoz
- Division of Neurology University of Toronto Toronto Ontario Canada.,Edmond J. Safra Program in Parkinson's Disease and Morton and Gloria Shulman Movement Disorders Centre Toronto Western Hospital, UHN Toronto Ontario Canada.,Krembil Brain Institute Toronto Ontario Canada
| | - Mateusz Zurowski
- Toronto Western Hospital, Department of Psychiatry University of Toronto Toronto Ontario Canada
| | - Yu-Yan Poon
- Edmond J. Safra Program in Parkinson's Disease and Morton and Gloria Shulman Movement Disorders Centre Toronto Western Hospital, UHN Toronto Ontario Canada
| | - Mojgan Hodaie
- Krembil Brain Institute Toronto Ontario Canada.,Toronto Western Hospital, Division of Neurosurgery University of Toronto Toronto Ontario Canada
| | - Suneil K Kalia
- Krembil Brain Institute Toronto Ontario Canada.,Toronto Western Hospital, Division of Neurosurgery University of Toronto Toronto Ontario Canada
| | - Andres M Lozano
- Krembil Brain Institute Toronto Ontario Canada.,Toronto Western Hospital, Division of Neurosurgery University of Toronto Toronto Ontario Canada
| | - Alfonso Fasano
- Division of Neurology University of Toronto Toronto Ontario Canada.,Edmond J. Safra Program in Parkinson's Disease and Morton and Gloria Shulman Movement Disorders Centre Toronto Western Hospital, UHN Toronto Ontario Canada.,Krembil Brain Institute Toronto Ontario Canada.,Center for Advancing Neurotechnological Innovation to Application (CRANIA) Toronto Ontario Canada
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10
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O'Sullivan JD. Too much of a good thing: hedonistic homoeostatic dysregulation and other behavioural consequences of excessive dopamine replacement therapy in Parkinson's disease. J Neurol Neurosurg Psychiatry 2020; 91:566-567. [PMID: 32139655 DOI: 10.1136/jnnp-2019-322378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 02/03/2020] [Indexed: 01/26/2023]
Affiliation(s)
- John D O'Sullivan
- Centre for Clinical Research, University of Queensland, Brisbane, Queensland, Australia .,Neurology, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
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Mehanna R, Jankovic J. Young-onset Parkinson's disease: Its unique features and their impact on quality of life. Parkinsonism Relat Disord 2019; 65:39-48. [DOI: 10.1016/j.parkreldis.2019.06.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/29/2019] [Accepted: 06/01/2019] [Indexed: 12/23/2022]
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