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Dunning EE, Decourt B, Zawia NH, Shill HA, Sabbagh MN. Pharmacotherapies for the Treatment of Progressive Supranuclear Palsy: A Narrative Review. Neurol Ther 2024:10.1007/s40120-024-00614-9. [PMID: 38743312 DOI: 10.1007/s40120-024-00614-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 03/26/2024] [Indexed: 05/16/2024] Open
Abstract
Progressive supranuclear palsy (PSP) is a neurodegenerative disorder resulting from the deposition of misfolded and neurotoxic forms of tau protein in specific areas of the midbrain, basal ganglia, and cortex. It is one of the most representative forms of tauopathy. PSP presents in several different phenotypic variations and is often accompanied by the development of concurrent neurodegenerative disorders. PSP is universally fatal, and effective disease-modifying therapies for PSP have not yet been identified. Several tau-targeting treatment modalities, including vaccines, monoclonal antibodies, and microtubule-stabilizing agents, have been investigated and have had no efficacy. The need to treat PSP and other tauopathies is critical, and many clinical trials investigating tau-targeted treatments are underway. In this review, the PubMed database was queried to collect information about preclinical and clinical research on PSP treatment. Additionally, the US National Library of Medicine's ClinicalTrials.gov website was queried to identify past and ongoing clinical trials relevant to PSP treatment. This narrative review summarizes our findings regarding these reports, which include potential disease-modifying drug trials, modifiable risk factor management, and symptom treatments.
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Affiliation(s)
- Elise E Dunning
- Creighton University School of Medicine - Phoenix, Phoenix, AZ, USA
| | - Boris Decourt
- Department of Pharmacology and Neuroscience School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Laboratory on Neurodegeneration and Translational Research, College of Medicine, Roseman University of Health Sciences, Las Vegas, NV, USA
| | - Nasser H Zawia
- Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Doha, Qatar
- Department of Biomedical and Pharmaceutical Sciences, Interdisciplinary Neuroscience Program, University of Rhode Island, Kingston, RI, USA
| | - Holly A Shill
- Department of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, 350 W Thomas Rd, Phoenix, AZ, 85013, USA
| | - Marwan N Sabbagh
- Department of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, 350 W Thomas Rd, Phoenix, AZ, 85013, USA.
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Kaplan S. Prevalence of multiple system atrophy: A literature review. Rev Neurol (Paris) 2024; 180:438-450. [PMID: 38453600 DOI: 10.1016/j.neurol.2023.11.013] [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: 04/14/2023] [Revised: 09/19/2023] [Accepted: 11/28/2023] [Indexed: 03/09/2024]
Abstract
INTRODUCTION This paper aims to provide a literature overview on multiple system atrophy (MSA) prevalence in European and other pan-European populations. METHODS A literature search (PubMed, EMBASE) was performed through 2022 to identify published studies on MSA prevalence in European countries. Of these search results, titles and abstracts were screened for relevance. A standardized assessment tool was used for systematically data extraction and comparison. For studies where only the incidence rate was reported, MSA prevalence was derived based on the incidence and duration of disease. RESULTS A total of 24 studies conducted in 14 countries and published between 1995 and 2022 were identified. The prevalence of MSA was reported in 18 (75%) studies and was derived from six (25%) incidence studies. These studies were mainly prospective population-based studies or multi-center studies from specific regions or specialty clinical settings. Two earlier studies in Germany and the Netherlands were conducted using door-to-door design. The time period of evaluation of prevalence ranged from 1990 to 2018. The crude prevalence of MSA ranged from 0.5/100,000 in Spain to 17/100,000 in Japan. Age-specific prevalence rates were provided in five studies, and the reported age ranges varied. The gender-specific crude prevalence was estimated as 2.75/100,000 for men and 1.19/100.000 for women. The derived prevalence was higher (ranging from 0.7-18.9/100,000) than studies where the prevalence was reported. CONCLUSION The variations observed in MSA prevalence may result from differences in age distributions of the study populations, study methodology, diagnostic criteria and case assessment strategies of MSA. Thus, the comparability of these studies is limited.
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Affiliation(s)
- S Kaplan
- Teva Pharmaceutical Industries Ltd, 12, Hatrufa St, Netanya, Israel.
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Kaplan S, Xie H, Wang J. Estimating the prevalence and incidence of multiple system atrophy in the USA: Insights from a national claims database. Parkinsonism Relat Disord 2023; 117:105920. [PMID: 37951144 DOI: 10.1016/j.parkreldis.2023.105920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/26/2023] [Accepted: 10/29/2023] [Indexed: 11/13/2023]
Abstract
INTRODUCTION Published literature on the prevalence and incidence of multiple system atrophy (MSA) in the US are scarce or based on relatively older studies. The objective of this study was to estimate the prevalence and cumulative incidence of MSA in the US. METHODS This was a retrospective study of individuals aged 30 years or older in a large US claims database from 2016 to 2021. The primary endpoint was ≥1 MSA claim. Persons with ≥2 MSA claims were also examined. Incident cases aged ≥30 years with a minimum of one-year of continuous enrollment prior to and following cohort entry were identified. Prevalence and cumulative incidence of MSA were estimated for year 2021 and were also standardized to the 2021 US population. RESULTS The crude prevalence of MSA was 7.2 per 100,000 persons in 2021 and increased with age. After standardization to the US population, the age-adjusted prevalence was 12.4 per 100,000 translating to 41,133 persons in the 2021 US population. In persons with ≥2 MSA claims, the crude and age-adjusted prevalence were 3.1 and 5.7 per 100,000 persons. The crude cumulative incidence of MSA for individuals aged 30 years and older was 9.8 per 100,000 persons in 2021. The estimated cumulative incidence of MSA in individuals 30 years or older, age-adjusted to the 2021 U S. population, was 14.2 per 100,000. CONCLUSION This study provides real-world evidence on the prevalence and cumulative incidence of MSA in the US to better understand the medical care needs and treatment.
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Affiliation(s)
- Sigal Kaplan
- Teva Pharmaceutical Industries Ltd, 12 Hatrufa Street, Netanya, 4250483, Israel.
| | - Handing Xie
- Teva Branded Pharmaceutical Products R&D, Inc, 145 Brandywine Pkwy, West Chester, PA, 19380, USA.
| | - Jing Wang
- KMK Consulting, Inc, 23 Headquarters Plaza, North Tower, Morristown, NJ, 07960, USA.
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Lyons S, Trépel D, Lynch T, Walsh R, O'Dowd S. The prevalence and incidence of progressive supranuclear palsy and corticobasal syndrome: a systematic review and meta-analysis. J Neurol 2023; 270:4451-4465. [PMID: 37289323 PMCID: PMC10421779 DOI: 10.1007/s00415-023-11791-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS) are progressive neurodegenerative syndromes characterised by Parkinsonism with additional features including cognitive dysfunction, falls, and oculomotor abnormalities. Understanding the epidemiology of these conditions is critical to planning for future service provision. METHODS We conducted a systematic review of studies reporting incidence and prevalence of CBS and PSP. A search of the PubMed and EMBASE data bases was conducted from their date of inception to 13th July 2021. Meta-analysis of studies sharing similar methodologies was carried out to generate estimated pooled prevalence and incidence. RESULTS We found 32 studies meeting our criteria for inclusion. There were 20 studies with data on prevalence and 12 with incidence data of PSP. Prevalence of CBS was reported in eight studies while seven studies reported incidence. Reported estimates of prevalence for PSP ranged from 1.00 (0.9-1.1) to 18 (8-28) per 100,000 while prevalence rates for CBS ranged from 0.83 (0.1-3.0) to 25 (0-59). Incidence rates for PSP and CBS respectively ranged from 0.16 (0.07-0.39) to 2.6 per 100,000 person-years and 0.03 (0-0.18) to 0.8 (0.4-1.3) per 100,000 person-years. A random effects model meta-analysis of studies with similar methodologies yielded a pooled prevalence estimate for PSP of 6.92 (4.33-11.06, I2 = 89%, τ2 = 0.3907) and 3.91 (2.03-7.51, I2 = 72%, τ2 = 0.2573) per 100,000 for CBS. CONCLUSION Studies of the epidemiology of PSP and CBS report highly heterogeneous findings. There is a need for further studies using rigorous phenotyping and the most recent diagnostic criteria to understand the true burden of these conditions.
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Affiliation(s)
- Shane Lyons
- Department of Neurology, Tallaght University Hospital, Dublin, Ireland.
- The Dublin Neurological Institute, Mater Misericordiae University Hospital, Dublin, Ireland.
- Academic Unit of Neurology, Trinity College Dublin, Dublin, Ireland.
| | - Dominic Trépel
- Trinity College Institute for Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Tim Lynch
- The Dublin Neurological Institute, Mater Misericordiae University Hospital, Dublin, Ireland
- Health Affairs, University College Dublin, Dublin, Ireland
| | - Richard Walsh
- Department of Neurology, Tallaght University Hospital, Dublin, Ireland
- The Dublin Neurological Institute, Mater Misericordiae University Hospital, Dublin, Ireland
- Academic Unit of Neurology, Trinity College Dublin, Dublin, Ireland
| | - Sean O'Dowd
- Department of Neurology, Tallaght University Hospital, Dublin, Ireland
- Institute of Memory and Cognition, Tallaght University Hospital, Dublin, Ireland
- Academic Unit of Neurology, Trinity College Dublin, Dublin, Ireland
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Kannan A, Ishikawa K, Chen J, Krening E, Gao F, Ross GW, Bruno MK. Differences Among Native Hawaiian, Asian, and White Patients with Progressive Supranuclear Palsy. Mov Disord 2023; 38:1355-1361. [PMID: 37157060 DOI: 10.1002/mds.29431] [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: 02/05/2023] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 05/10/2023] Open
Abstract
BACKGROUND Most studies of progressive supranuclear palsy (PSP) have been conducted in White populations. OBJECTIVE The objective of this study was to identify whether differences exist for patients with PSP among Whites, East Asians (EAs), and Native Hawaiians/Pacific Islanders (NHPIs) in Hawaii. METHODS We conducted a single-center, retrospective study of patients meeting Movement Disorder Society probable PSP criteria (2006-2021). Data variables included age of onset and diagnosis, comorbidities, and survival rate. Variables were compared across groups using Fisher's exact test, Kruskal-Wallis rank sum test, and log-rank tests. RESULTS A total of 94 (59 EAs, 9 NHPIs, 16 Whites, and 10 Others) patients were identified. Mean age ± standard deviation (in years) of symptom onset/diagnosis were both youngest in NHPIs (64.0 ± 7.2/66.3 ± 8.0) followed by Whites (70.8 ± 7.6/73.9 ± 7.8), then EAs (75.9 ± 8.2/79.2 ± 8.3) (P < 0.001). Median survival from diagnosis was significantly lower (P < 0.05) in NHPIs (2 years) compared with EAs (4 years) and Whites (6 years). CONCLUSIONS There may be racial disparities for PSP, and studies are needed to identify genetic, environmental, and socioeconomic contributions. © 2023 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Ashok Kannan
- John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawaii, USA
| | - Kyle Ishikawa
- John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawaii, USA
| | - John Chen
- John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawaii, USA
| | - Emma Krening
- The Queen's Medical Center, Honolulu, Hawaii, USA
| | - Fay Gao
- John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawaii, USA
- The Queen's Medical Center, Honolulu, Hawaii, USA
| | - G Webster Ross
- Pacific Health Research and Education Institute, Virginia Pacific Islands Health Care System, Honolulu, Hawaii, United States
| | - Michiko Kimura Bruno
- John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawaii, USA
- The Queen's Medical Center, Honolulu, Hawaii, USA
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O'Shea N, Lyons S, Higgins S, O'Dowd S. Neurological update: the palliative care landscape for atypical parkinsonian syndromes. J Neurol 2023; 270:2333-2341. [PMID: 36688987 DOI: 10.1007/s00415-023-11574-9] [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: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/24/2023]
Abstract
Atypical parkinsonian syndromes are neurodegenerative conditions, characterised by rapid disease progression and shorter life expectancy compared to idiopathic Parkinson's disease. These conditions inflict substantial physical and psychosocial burden on patients and their families; hence, there is a clear rationale for a palliative care approach from diagnosis. An interdisciplinary care model has been shown to improve symptom burden, quality of life and engagement with advance care planning, in a heterogeneous group of neurodegenerative conditions. In this update, we summarise how the landscape for treating these patients has changed and the questions that still need to be resolved.
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Affiliation(s)
- Noreen O'Shea
- Department of Neurology, Tallaght University Hospital, Tallaght, Dublin 24, D24NR0A, Ireland.
- Department of Palliative Medicine, Tallaght University Hospital, Tallaght, Dublin 24, D24NR0A, Ireland.
| | - Shane Lyons
- Department of Neurology, Tallaght University Hospital, Tallaght, Dublin 24, D24NR0A, Ireland
| | - Stephen Higgins
- Department of Palliative Medicine, Tallaght University Hospital, Tallaght, Dublin 24, D24NR0A, Ireland
- Our Lady's Hospice & Care Services, Harold's Cross, Dublin, D6WRY72, Ireland
| | - Sean O'Dowd
- Department of Neurology, Tallaght University Hospital, Tallaght, Dublin 24, D24NR0A, Ireland
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Bougea A, Stefanis L. microRNA and circRNA in Parkinson's Disease and atypical parkinsonian syndromes. Adv Clin Chem 2023; 115:83-133. [PMID: 37673523 DOI: 10.1016/bs.acc.2023.03.002] [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] [Indexed: 03/30/2023]
Abstract
Multiple System Atrophy (MSA) and Progressive Supranuclear Palsy (PSP) are atypical parkinsonian syndromes (APS) with various clinical phenotypes and considerable clinical overlap with idiopathic Parkinson's disease (iPD). This disease heterogeneity makes ante-mortem diagnosis extremely challenging with up to 24% of patients misdiagnosed. Because diagnosis is predominantly clinical, there is great interest in identifying biomarkers for early diagnosis and differentiation of the different types of parkinsonism. Compared to protein biomarkers, microRNAs (miRNAs) and circularRNAs (circRNAs) are stable tissue-specific molecules that can be accurately measured by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). This chapter critically reviews miRNAs and circRNAs as diagnostic biomarkers and therapeutics to differentiate atypical parkinsonian disorders and their role in disease pathogenesis.
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Affiliation(s)
- Anastasia Bougea
- 1st Department of Neurology, Medical School, Aeginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
| | - Leonidas Stefanis
- 1st Department of Neurology, Medical School, Aeginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
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Pathomechanisms of depression in progressive supranuclear palsy. J Neural Transm (Vienna) 2023:10.1007/s00702-023-02621-w. [PMID: 36933007 DOI: 10.1007/s00702-023-02621-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/12/2023] [Indexed: 03/19/2023]
Abstract
Depression is one of the most frequent neuropsychiatric symptoms in progressive supranuclear palsy (PSP), a four-repeat tauopathy and most common atypical parkinsonian disorder, but its pathophysiology and pathogenesis are poorly understood. Pubmed/Medline was systematically analyzed until January 2023, with focus on the prevalence, major clinical features, neuroimaging findings and treatment options of depression in PSP. The average prevalence of depression in PSP is around 50%; it does usually not correlate with most other clinical parameters. Depression is associated with multi-regional patterns of morphometric gray matter variations, e.g., reduced thickness of temporo-parieto-occipital cortices, and altered functional orbitofrontal and medial frontal circuits with disturbances of mood-related brain networks. Unfortunately, no specific neuropathological data about depression in PSP are available. Antidepressive and electroconvulsive therapies are effective in improving symptoms; the efficacy of transcranial stimulation needs further confirmation. Depression in PSP is a common symptom, related to multi-regional patterns of cerebral disturbances and complex pathogenic mechanisms that deserve further elucidation as a basis for adequate treatment to improve the quality of life in this fatal disease.
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Kiesmann M, Martin RE, Sauleau E, Bulubas I, Fleury MC, Perisse J, Kaltenbach G, Schmitt E. Diagnosis of vascular parkinsonism: A new tool for gait hypokinesia occurring in older persons. Parkinsonism Relat Disord 2023; 109:105360. [PMID: 36921515 DOI: 10.1016/j.parkreldis.2023.105360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 02/27/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023]
Abstract
INTRODUCTION Reliable diagnosis of vascular parkinsonism (VaP) in the presence of a gait hypokinesia is an issue that is encountered in geriatrics. The EVAMAR-AGEX study was focusing on the phenomenon of recurrent falls in older persons (OP) with this parkinsonian gait. The present study is focusing on the diagnosis of VaP-related parkinsonian gait by developing a diagnostic guidance model adapted to OP. METHODS Data from baseline and the 2-year follow-up visit were used to carry out univariate analysis and calculation of odds ratios, allowing to identify relevant variables to include in the diagnostic guidance model. To evaluate the model, confusion matrices were created, evaluating true positive, false negative, false positive and true negative incidences, sensitivity and specificity, and negative and positive predictive values. RESULTS 79 patients included 58% male; average age 81.24 years. VaP diagnosis according to Zijlmans criteria occurred in 28%; neurodegenerative parkinsonian syndromes in 72%. A 4-criteria model was established to facilitate diagnostic: lack of prior hallucinations, lack of movement disorders tremor excluded, no cognitive fluctuations, and ≥75 years of age at diagnosis. In combination of 4/4 criteria, all of them were required to disclose a specificity of 91% in the diagnosis of VaP. In combination of 3/4, in case of negative test, a negative predictive value for VaP diagnosis of 0.97 was obtained. CONCLUSION The challenge of our tool is both to be able to rule out what is probably not a VaP and to argue what makes a VaP diagnosis probable in OP.
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Affiliation(s)
- Michèle Kiesmann
- Geriatric Department, University Hospitals of Strasbourg, Strasbourg, France
| | | | - Erik Sauleau
- Biostatistical Laboratory, iCube - CNRS UMR 7357, Department of Public Health, Methods in Clinical Research, University of Strasbourg, Strasbourg, France
| | - Irina Bulubas
- Geriatric Department, University Hospitals of Strasbourg, Strasbourg, France
| | - Marie Céline Fleury
- Neurology Department, University Hospitals of Strasbourg, Strasbourg, France
| | - Jérémie Perisse
- Geriatric Department, University Hospitals of Strasbourg, Strasbourg, France
| | - Georges Kaltenbach
- Geriatric Department, University Hospitals of Strasbourg, Strasbourg, France
| | - Elise Schmitt
- Geriatric Department, University Hospitals of Strasbourg, Strasbourg, France; EA-3072, University of Strasbourg, Strasbourg, France.
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Pathomechanisms of cognitive impairment in progressive supranuclear palsy. J Neural Transm (Vienna) 2023; 130:481-493. [PMID: 36862189 DOI: 10.1007/s00702-023-02613-w] [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: 01/16/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023]
Abstract
Progressive supranuclear palsy (PSP) is a neurodegenerative disorder characterized by early postural instability and falls, oculomotor dysfunction (vertical supranuclear gaze palsy), parkinsonism with poor response to levodopa, pseudobulbar palsy, and cognitive impairment. This four-repeat tauopathy is morphologically featured by accumulation of tau protein in neurons and glia causing neuronal loss and gliosis in the extrapyramidal system associated with cortical atrophy and white matter lesions. Cognitive impairment being frequent in PSP and more severe than in multiple system atrophy and Parkinson disease, is dominated by executive dysfunction, with milder difficulties in memory, and visuo-spatial and naming dysfunctions. Showing longitudinal decline, it has been related to a variety of pathogenic mechanisms associated with the underlying neurodegenerative process, such as involvement of cholinergic and muscarinergic dysfunctions, and striking tau pathology in frontal and temporal cortical regions associated with reduced synaptic density. Altered striatofrontal, fronto-cerebellar, parahippocampal, and multiple subcortical structures, as well as widespread white matter lesions causing extensive connectivity disruptions in cortico-subcortical and cortico-brainstem connections, support the concept that PSP is a brain network disruption disorder. The pathophysiology and pathogenesis of cognitive impairment in PSP, as in other degenerative movement disorders, are complex and deserve further elucidation as a basis for adequate treatment to improve the quality of life of patients with this fatal disease.
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Zirra A, Rao SC, Bestwick J, Rajalingam R, Marras C, Blauwendraat C, Mata IF, Noyce AJ. Gender Differences in the Prevalence of Parkinson's Disease. Mov Disord Clin Pract 2022; 10:86-93. [PMID: 36699001 PMCID: PMC9847309 DOI: 10.1002/mdc3.13584] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/03/2022] [Indexed: 01/28/2023] Open
Abstract
Background Parkinson's disease (PD) affects males more than females. The reasons for the gender differences in PD prevalence remain unclear. Objective The objective of this systematic review and meta-analysis was to update the overall male/female prevalence ratios (OPR). Methods We updated previous work by searching MEDLINE, SCOPUS, and OVID for articles reporting PD prevalence for both genders between 2011 and 2021. We calculated OPRs and investigated heterogeneity in effect estimates. Results We included 19 new articles and 13 articles from a previously published meta-analysis. The OPR was 1.18, 95% CI, [1.03, 1.36]. The OPR was lowest in Asia and appeared to be decreasing over time. Study design, national wealth, and participant age did not explain OPR heterogeneity. Conclusion Gender differences in PD prevalence may not be as stark as previously thought. Studies are needed to understand the role of other determinants of gender differences in PD prevalence.
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Affiliation(s)
- Alexandra Zirra
- Preventive Neurology UnitWolfson Institute of Population Health, Queen Mary University of LondonLondonUnited Kingdom
| | - Shilpa C. Rao
- Genomic Medicine InstituteLerner Research Institute, Cleveland Clinic FoundationClevelandOhioUSA,Department of Molecular MedicineCase Western Reserve UniversityClevelandOhioUSA
| | - Jonathan Bestwick
- Preventive Neurology UnitWolfson Institute of Population Health, Queen Mary University of LondonLondonUnited Kingdom
| | | | - Connie Marras
- University Health NetworkUniversity of TorontoTorontoOntarioCanada
| | - Cornelis Blauwendraat
- Laboratory of Neurogenetics, National Institute of AgingNational Institutes of HealthBethesdaMarylandUSA
| | - Ignacio F. Mata
- Genomic Medicine InstituteLerner Research Institute, Cleveland Clinic FoundationClevelandOhioUSA,Department of Molecular MedicineCase Western Reserve UniversityClevelandOhioUSA
| | - Alastair J. Noyce
- Preventive Neurology UnitWolfson Institute of Population Health, Queen Mary University of LondonLondonUnited Kingdom,Department of Clinical and Movement NeurosciencesUCL Institute of NeurologyLondonUnited Kingdom
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Epidemiology of Progressive Supranuclear Palsy: Real World Data from the Second Largest Health Plan in Israel. Brain Sci 2022; 12:brainsci12091126. [PMID: 36138862 PMCID: PMC9496895 DOI: 10.3390/brainsci12091126] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/24/2022] Open
Abstract
Progressive supranuclear palsy (PSP) is a rare and fatal neurodegenerative movement disorder and no disease modifying therapy (DMT) is currently available. This study aims to assess the epidemiology of PSP in Israel and to describe its clinical features. This retrospective analysis identified patients with PSP between 2000 and 2018 over the age of 40 years at first diagnosis (index date). We identified 209 patients with ≥1 diagnosis of PSP. Of those, 88 patients satisfied the inclusion criteria with a mean age at diagnosis of 72 years (SD = 8) and 53% were female. The 2018 prevalence and incidence rates were 5.3 and 1 per 100,000 persons, respectively. Median survival time was 4.9 years (95% CI 3.6–6.1) and median time from initial symptom to diagnosis was 4.2 years. The most common misdiagnoses were Parkinson’s disease, cognitive disorder and depression. The present study demonstrates that the clinic-epidemiological features of PSP in Israel are similar to PSP worldwide. In light of PSP’s rarity, investigation of PSP cohorts in different countries may create a proper platform for upcoming DMT trials.
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Olfati N, Shoeibi A, Litvan I. Clinical Spectrum of Tauopathies. Front Neurol 2022; 13:944806. [PMID: 35911892 PMCID: PMC9329580 DOI: 10.3389/fneur.2022.944806] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/20/2022] [Indexed: 11/20/2022] Open
Abstract
Tauopathies are both clinical and pathological heterogeneous disorders characterized by neuronal and/or glial accumulation of misfolded tau protein. It is now well understood that every pathologic tauopathy may present with various clinical phenotypes based on the primary site of involvement and the spread and distribution of the pathology in the nervous system making clinicopathological correlation more and more challenging. The clinical spectrum of tauopathies includes syndromes with a strong association with an underlying primary tauopathy, including Richardson syndrome (RS), corticobasal syndrome (CBS), non-fluent agrammatic primary progressive aphasia (nfaPPA)/apraxia of speech, pure akinesia with gait freezing (PAGF), and behavioral variant frontotemporal dementia (bvFTD), or weak association with an underlying primary tauopathy, including Parkinsonian syndrome, late-onset cerebellar ataxia, primary lateral sclerosis, semantic variant PPA (svPPA), and amnestic syndrome. Here, we discuss clinical syndromes associated with various primary tauopathies and their distinguishing clinical features and new biomarkers becoming available to improve in vivo diagnosis. Although the typical phenotypic clinical presentations lead us to suspect specific underlying pathologies, it is still challenging to differentiate pathology accurately based on clinical findings due to large phenotypic overlaps. Larger pathology-confirmed studies to validate the use of different biomarkers and prospective longitudinal cohorts evaluating detailed clinical, biofluid, and imaging protocols in subjects presenting with heterogenous phenotypes reflecting a variety of suspected underlying pathologies are fundamental for a better understanding of the clinicopathological correlations.
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Affiliation(s)
- Nahid Olfati
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- UC San Diego Department of Neurosciences, Parkinson and Other Movement Disorder Center, San Diego, CA, United States
| | - Ali Shoeibi
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Irene Litvan
- UC San Diego Department of Neurosciences, Parkinson and Other Movement Disorder Center, San Diego, CA, United States
- *Correspondence: Irene Litvan
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Swallow DMA, Counsell CE. The prevalence of progressive supranuclear palsy and corticobasal syndrome in Scotland. Neuroepidemiology 2022; 56:291-297. [PMID: 35654007 DOI: 10.1159/000525334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/29/2022] [Indexed: 11/19/2022] Open
Abstract
Introduction We estimated the point prevalence of progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS) at regional and national levels in Scotland, UK as there are few high-quality prevalence studies of these conditions. Methods Nationally, multiple methods of case ascertainment were used including clinician and nurse specialist referral, searches of ICD-10 diagnostic coding in routinely collected electronic health data (Scottish Morbidity Record), and patient self-referral. In one region we also searched GP databases and unselected hospital correspondence. Cases were verified by clinical examination or medical record review. National and regional total and age-sex stratified crude prevalence rates on 31st December 2018 were calculated. Results The regional crude point prevalence was 4.28 per 100,000 (95% CI 2.90, 6.31) for PSP, and 2.05 per 100,000 (95% CI 1.17, 3.59) for CBS. The national crude prevalence rates were lower due to the greater reliance on passive case ascertainment. There were no clear sex differences. At a national level, the peak crude prevalence rate for both PSP and CBS was in the 70-79 age-group. Discussion The prevalence rates of PSP and CBS were similar to previous estimates with little change over the past 20 years.
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Affiliation(s)
- Diane M A Swallow
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Carl E Counsell
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, United Kingdom
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15
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Swallow DM, Zheng CS, Counsell CE. Systematic review of prevalence studies of progressive supranuclear palsy and corticobasal syndrome. Mov Disord Clin Pract 2022; 9:604-613. [PMID: 35844273 PMCID: PMC9274340 DOI: 10.1002/mdc3.13489] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/04/2022] [Accepted: 03/01/2022] [Indexed: 11/08/2022] Open
Affiliation(s)
- Diane M.A. Swallow
- Institute of Applied Health Sciences University of Aberdeen Aberdeen United Kingdom
| | | | - Carl E. Counsell
- Institute of Applied Health Sciences University of Aberdeen Aberdeen United Kingdom
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16
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Lo R. Epidemiology of atypical parkinsonian syndromes. Tzu Chi Med J 2022; 34:169-181. [PMID: 35465274 PMCID: PMC9020244 DOI: 10.4103/tcmj.tcmj_218_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 11/04/2022] Open
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17
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d'Errico A, Strippoli E, Vasta R, Ferrante G, Spila Alegiani S, Ricceri F. Use of antipsychotics and long-term risk of parkinsonism. Neurol Sci 2021; 43:2545-2553. [PMID: 34652577 PMCID: PMC8918175 DOI: 10.1007/s10072-021-05650-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/01/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Few epidemiological studies have assessed the risk of parkinsonisms after prolonged use of neuroleptics. We aimed to examine the long-term risk of degenerative parkinsonisms (DP) associated with previous use of neuroleptics. METHODS All residents in Piedmont, Northern-west Italy, older than 39 years (2,526,319 subjects), were retrospectively followed up from 2013 to 2017. Exposure to neuroleptics was assessed through the regional archive of drug prescriptions. The development of DP was assessed using the regional archives of both drug prescriptions and hospital admissions. We excluded prevalent DP cases at baseline as well as those occurred in the first 18 months (short-term risk). The risk of DP associated with previous use of neuroleptics was examined through Cox regression, using a matched cohort design. RESULTS The risk of DP was compared between 63,356 exposed and 316,779 unexposed subjects. A more than threefold higher risk of DP was observed among subjects exposed to antipsychotics, compared to those unexposed (HR = 3.27, 95% CI 3.00-3.57), and was higher for exposure to atypical than typical antipsychotics. The risk decreased after 2 years from therapy cessation but remained significantly elevated (HR = 2.38, 95% CI 1.76-3.21). CONCLUSIONS These results indicate a high risk of developing DP long time from the start of use and from the cessation for both typical and atypical neuroleptics, suggesting the need of monitoring treated patients even after long-term use and cessation.
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Affiliation(s)
- Angelo d'Errico
- Epidemiology Unit, Piedmont Region, ASL TO3, Grugliasco, Italy
| | - Elena Strippoli
- Epidemiology Unit, Piedmont Region, ASL TO3, Grugliasco, Italy
| | - Rosario Vasta
- ALS Center, 'Rita Levi Montalcini' Department of Neuroscience, University of Turin, Via Cherasco, 15, 10126, Turin, Italy.
| | - Gianluigi Ferrante
- National Centre for Drug Research and Evaluation, National Institute of Health (ISS), Rome, Italy.,Center for Oncology Prevention Piemonte, Città della Salute e della Scienza, Turin, Italy
| | - Stefania Spila Alegiani
- National Centre for Drug Research and Evaluation, National Institute of Health (ISS), Rome, Italy
| | - Fulvio Ricceri
- Epidemiology Unit, Piedmont Region, ASL TO3, Grugliasco, Italy.,Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
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18
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Youn J, Todisco M, Zappia M, Pacchetti C, Fasano A. Parkinsonism and cerebrospinal fluid disorders. J Neurol Sci 2021; 433:120019. [PMID: 34674853 DOI: 10.1016/j.jns.2021.120019] [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] [Received: 05/15/2021] [Revised: 08/25/2021] [Accepted: 09/29/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although various motor manifestations can be seen in patients with cerebrospinal fluid (CSF) disorders, such as hydrocephalus or intracranial hypotension, the clinical presentation with parkinsonism is not clearly elucidated. METHODS We searched the literature for studies describing the occurrence of parkinsonism in subjects with normal pressure hydrocephalus (NPH), obstructive hydrocephalus, and intracranial hypotension. We analyzed the clinical presentation (particularly with respect to bradykinesia, rigidity, rest tremor, and gait disturbance/postural instability) as well as the response to treatment. RESULTS Parkinsonism was most commonly reported in NPH patients. Although gait disturbance/postural instability is a well-known motor symptom of NPH, other cardinal signs include upper limb involvement or asymmetric presentation. As for obstructive hydrocephalus, parkinsonism was mainly observed in subjects with aqueductal stenosis and more often after shunt surgery. Patients with NPH or obstructive hydrocephalus rarely improved with levodopa therapy, while most subjects only improved with shunt surgery. Although the mechanism is still controversial, a functional involvement of nigrostriatal pathway has been hypothesized based on imaging studies and case reports. Brain imaging is also helpful for atypical cases of intracranial hypotension presenting with parkinsonism. Parkinsonism improved after treatment in such cases as well. CONCLUSIONS Studies exploring the relationship between CSF disorders and parkinsonism are mainly descriptive and their quality is generally poor. However, considering that these disorders can be treated, clinicians' awareness of the differential diagnosis is important and future studies better exploring the underlying pathophysiological mechanisms are warranted. This article is part of the Special Issue "Parkinsonism across the spectrum of movement disorders and beyond" edited by Joseph Jankovic, Daniel D. Truong and Matteo Bologna.
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Affiliation(s)
- Jinyoung Youn
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Neuroscience Center, Samsung Medical Center, Seoul, Republic of Korea; Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Division of Neurology, University of Toronto, Toronto, Ontario, Canada
| | - Massimiliano Todisco
- Parkinson's Disease and Movement Disorders Unit, IRCCS Mondino Foundation, Pavia, Italy; Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Mario Zappia
- Department of Medical, Surgical Sciences and Advanced Technologies 'G.F. Ingrassia', University of Catania, Catania, Italy
| | - Claudio Pacchetti
- Parkinson's Disease and Movement Disorders Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Alfonso Fasano
- Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Division of Neurology, University of Toronto, Toronto, Ontario, Canada; Krembil Brain Institute, Toronto, Ontario, Canada.
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19
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Riboldi GM, Frattini E, Monfrini E, Frucht SJ, Fonzo AD. A Practical Approach to Early-Onset Parkinsonism. JOURNAL OF PARKINSONS DISEASE 2021; 12:1-26. [PMID: 34569973 PMCID: PMC8842790 DOI: 10.3233/jpd-212815] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Early-onset parkinsonism (EO parkinsonism), defined as subjects with disease onset before the age of 40 or 50 years, can be the main clinical presentation of a variety of conditions that are important to differentiate. Although rarer than classical late-onset Parkinson’s disease (PD) and not infrequently overlapping with forms of juvenile onset PD, a correct diagnosis of the specific cause of EO parkinsonism is critical for offering appropriate counseling to patients, for family and work planning, and to select the most appropriate symptomatic or etiopathogenic treatments. Clinical features, radiological and laboratory findings are crucial for guiding the differential diagnosis. Here we summarize the most important conditions associated with primary and secondary EO parkinsonism. We also proposed a practical approach based on the current literature and expert opinion to help movement disorders specialists and neurologists navigate this complex and challenging landscape.
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Affiliation(s)
- Giulietta M Riboldi
- The Marlene and Paolo Fresco Institute for Parkinson's and Movement Disorders, Department of Neurology, NYU Langone Health, New York, NY, USA
| | - Emanuele Frattini
- IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit, Milan, Italy.,Dino Ferrari Center, Neuroscience Section, Department of Pathophysiology and Transplantation , University of Milan, Milan, Italy
| | - Edoardo Monfrini
- IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit, Milan, Italy.,Dino Ferrari Center, Neuroscience Section, Department of Pathophysiology and Transplantation , University of Milan, Milan, Italy
| | - Steven J Frucht
- The Marlene and Paolo Fresco Institute for Parkinson's and Movement Disorders, Department of Neurology, NYU Langone Health, New York, NY, USA
| | - Alessio Di Fonzo
- IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit, Milan, Italy
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20
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Viscidi E, Litvan I, Dam T, Juneja M, Li L, Krzywy H, Eaton S, Hall S, Kupferman J, Höglinger GU. Clinical Features of Patients With Progressive Supranuclear Palsy in an US Insurance Claims Database. Front Neurol 2021; 12:571800. [PMID: 34220661 PMCID: PMC8245849 DOI: 10.3389/fneur.2021.571800] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 05/28/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Progressive supranuclear palsy is a rare neurodegenerative movement disorder and little is known about its epidemiology. Objective: Estimate age-adjusted prevalence of progressive supranuclear palsy and describe antecedent diagnoses and progressive supranuclear palsy patient features in the 5 years before first diagnostic code. Methods: In a nested case-control study in the IBM MarketScan Commercial and Medicare Supplemental Databases, a large set of US insurance databases containing medical service and prescription drug claims from employer-based commercial and Medicare supplemental health insurance plans, progressive supranuclear palsy cases (identified via International Statistical Classification of Diseases 9th/10th revision codes) and controls were included if enrollment was ≥1 month in the study period (October 1, 2015–October 31, 2017). Two controls with no diagnosis codes for PSP were matched to cases on birth year, sex, enrollment time in the database, and pharmacy benefit eligibility. Controls were assigned a randomly selected index date from their eligibility period. Prevalence of progressive supranuclear palsy was estimated in 2016 among patients with ≥1 month of continuous enrollment in that year. Prevalence ratios for comorbidities (claim/diagnosis codes) were examined in the ≤ 5 years before index date (first progressive supranuclear palsy claim date). Results: Age-adjusted progressive supranuclear palsy prevalence was 2.95/100,000 in 2016. The most common diagnosis codes in cases vs. controls in the 5 years pre-index were gait abnormalities (79.3 vs. 21.8%), pain in joint (54.9 vs. 36.0%), Parkinson's disease (54.6 vs. 1.0%), fatigue (49.8 vs. 21.6%), and cerebrovascular disease (45.6 vs. 16.4%). Conclusions: In this large database analysis, based on preliminary analyses, the prevalence of diagnosed progressive supranuclear palsy was 2.95/100,000, which is lower than many prior studies. Typical symptoms suggestive of progressive supranuclear palsy were present before index date, indicating a potential delay in time to diagnosis. The identification of diagnostic codes for clinical features of progressive supranuclear palsy that occurred before index date may be used to develop predictive models to identify potential progressive supranuclear palsy patients earlier in their disease course.
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Affiliation(s)
| | - Irene Litvan
- Parkinson and Other Movement Disorders Center, University of California, San Diego, San Diego, CA, United States
| | - Tien Dam
- Biogen, Cambridge, MA, United States
| | - Maneesh Juneja
- MJ Analytics Ltd., Hemel Hempstead, Hertfordshire, United Kingdom
| | - Li Li
- Biogen, Cambridge, MA, United States
| | | | | | | | | | - Günter U Höglinger
- Department of Neurology, Technische Universität München, Munich, Germany.,German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Department of Neurology, Hanover Medical School, Hanover, Germany
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21
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Park HK, Ilango SD, Litvan I. Environmental Risk Factors for Progressive Supranuclear Palsy. J Mov Disord 2021; 14:103-113. [PMID: 34062646 PMCID: PMC8175813 DOI: 10.14802/jmd.20173] [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: 12/23/2020] [Accepted: 03/17/2021] [Indexed: 11/24/2022] Open
Abstract
Typically, progressive supranuclear palsy (PSP) is clinically characterized by slow vertical saccades or supranuclear gaze palsy, levodopa-resistant parkinsonism with predominant axial symptoms, and cognitive executive impairment. Over the past decades, various PSP phenotypes, including PSP with predominant parkinsonism, PSP with corticobasal syndrome, PSP with progressive gait freezing, and PSP with predominant frontal dysfunction, have been identified from pathologically confirmed cases. Expanding knowledge led to new diagnostic criteria for PSP that with increased disease awareness led to increased PSP prevalence estimates. The identification of environmental and modifiable risk factors creates an opportunity to intervene and delay the onset of PSP or slow disease progression. To date, despite the increasing number of publications assessing risk factors for PSP, few articles have focused on environmental and lifestyle risk factors for this disorder. In this article, we reviewed the literature investigating the relationship between PSP and several environmental and other modifiable lifestyle risk factors. In our review, we found that exposures to toxins related to diet, metals, well water, and hypertension were associated with increased PSP risk. In contrast, higher education and statins may be protective. Further case-control studies are encouraged to determine the exact role of these factors in the etiopathogenesis of PSP, which in turn would inform strategies to prevent and reduce the burden of PSP.
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Affiliation(s)
- Hee Kyung Park
- Department of Neurology, Ewha Womans Mokdong Hospital, Ewha Womans University, Seoul, Korea.,Division of Psychiatry, Department of Mental Health Care of Older People, University College London, London, UK
| | - Sindana D Ilango
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA.,School of Public Health, San Diego State University, San Diego, CA, USA
| | - Irene Litvan
- Parkinson and Other Movement Disorders Center, Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
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22
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Wisidagama S, Selladurai A, Wu P, Isetta M, Serra-Mestres J. Recognition and Management of Antipsychotic-Induced Parkinsonism in Older Adults: A Narrative Review. MEDICINES 2021; 8:medicines8060024. [PMID: 34073269 PMCID: PMC8227528 DOI: 10.3390/medicines8060024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/19/2021] [Accepted: 05/23/2021] [Indexed: 12/30/2022]
Abstract
Background: Parkinsonism is a common side-effect of antipsychotic drugs especially in older adults, who also present with a higher frequency of neurodegenerative disorders like Idiopathic Parkinson’s disease (IPD). Distinguishing between antipsychotic-induced parkinsonism (AIP) and IPD is challenging due to clinical similarities. Up to 20% of older adults may suffer from persisting parkinsonism months after discontinuation of antipsychotics, suggesting underlying neurodegeneration. A review of the literature on AIP in older adults is presented, focusing on epidemiology, clinical aspects, and management. Methods: A literature search was undertaken on EMBASE, MEDLINE and PsycINFO, for articles on parkinsonism induced by antipsychotic drugs or other dopamine 2 receptor antagonists in subjects aged 65 or older. Results: AIP in older adults is the second most common cause of parkinsonism after IPD. Older age, female gender, exposure to high-potency first generation antipsychotics, and antipsychotic dosage are the main risk factors. The clinical presentation of AIP resembles that of IPD, but is more symmetrical, affects upper limbs more, and tends to have associated motor phenomena such as orofacial dyskinesias and akathisia. Presence of olfactory dysfunction in AIP suggests neurodegeneration. Imaging of striatal dopamine transporters is widely used in IPD diagnosis and could help to distinguish it from AIP. There is little evidence base for recommending pharmacological interventions for AIP, the best options being dose-reduction/withdrawal, or switching to a second-generation drug. Conclusions: AIP is a common occurrence in older adults and it is possible to differentiate it from IPD. Further research is needed into its pathophysiology and on its treatment.
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Affiliation(s)
- Sharadha Wisidagama
- Departments of Psychiatry, Central and North West London NHS Foundation Trust, London NW1 3AX, UK; (S.W.); (A.S.); (P.W.)
| | - Abiram Selladurai
- Departments of Psychiatry, Central and North West London NHS Foundation Trust, London NW1 3AX, UK; (S.W.); (A.S.); (P.W.)
| | - Peter Wu
- Departments of Psychiatry, Central and North West London NHS Foundation Trust, London NW1 3AX, UK; (S.W.); (A.S.); (P.W.)
| | - Marco Isetta
- Knowledge and Library Services, Central and North West London NHS Foundation Trust, London NW1 3AX, UK;
| | - Jordi Serra-Mestres
- Old Age Psychiatry, Central and North West London NHS Foundation Trust, Uxbridge UB8 3NN, UK
- Correspondence: ; Tel.: +44-0-1895-484911
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23
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Litvan I, Proudfoot JA, Martin ER, Standaert D, Riley D, Hall D, Marras C, Bayram E, Dubinsky RM, Bordelon Y, Reich S, Shprecher D, Kluger B, Cunningham C, Schellenberg GD, Jankovic J. Gene-Environment Interactions in Progressive Supranuclear Palsy. Front Neurol 2021; 12:664796. [PMID: 33897612 PMCID: PMC8062875 DOI: 10.3389/fneur.2021.664796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
Several genetic and environmental factors have been reported in progressive supranuclear palsy (PSP), although none were identified as a definitive cause. We aimed to explore potential gene-environment interactions in PSP. Two hundred and ninety two PSP cases and 292 controls matched for age, sex, and race from the ENGENE-PSP were analyzed to determine the association between PSP and minor alleles of 5 single nucleotide polymorphisms (SNPs) in 4 genes (MAPT, MOBP, EIF2AK3, and STX6), which were previously associated with PSP risk. Interactions between these SNPs and environmental factors, including previously reported occupational and agricultural risk factors for PSP, were assessed for PSP odds and age of symptom onset. Minor alleles of MAPTrs242557 and EIF2AK3rs7571971 were individually associated with increased odds; MAPTrs8070723 minor alleles were associated with lower PSP odds. There were several gene-environment interactions for PSP odds and age of symptom onset, however, they did not remain significant after FDR-correction. Larger scale studies are required to determine potential interactions.
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Affiliation(s)
- Irene Litvan
- Department of Neurosciences, Parkinson and Other Movement Disorders Center, University of California, San Diego, La Jolla, CA, United States
| | - James A. Proudfoot
- Clinical and Translational Research Institute, University of California, San Diego, La Jolla, CA, United States
| | - Eden R. Martin
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - David Standaert
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - David Riley
- InMotion, Warrensville Heights, OH, United States
| | - Deborah Hall
- Department of Neurological Sciences, Rush University, Chicago, IL, United States
| | - Connie Marras
- Morto and Gloria Shulman Movement Disorders Centre and the Edmond J. Safra Program in Parkinson's Research, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
| | - Ece Bayram
- Department of Neurosciences, Parkinson and Other Movement Disorders Center, University of California, San Diego, La Jolla, CA, United States
| | - Richard M. Dubinsky
- Department of General Neurology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Yvette Bordelon
- Department of Neurology, University of California, Los Angeles, Los Angeles, CA, United States
| | - Stephen Reich
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - David Shprecher
- Banner Sun Health Research Institute, Sun City, AZ, United States
- Department of Neurology, University of Utah, Salt City, UT, United States
| | - Benzi Kluger
- Department of Neurology, University of Colorado, Denver, CO, United States
| | - Christopher Cunningham
- Division of Movement Disorders, Department of Neurology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Gerard D. Schellenberg
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Joseph Jankovic
- Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX, United States
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Martínez-Maldonado A, Ontiveros-Torres MÁ, Harrington CR, Montiel-Sosa JF, Prandiz RGT, Bocanegra-López P, Sorsby-Vargas AM, Bravo-Muñoz M, Florán-Garduño B, Villanueva-Fierro I, Perry G, Garcés-Ramírez L, de la Cruz F, Martínez-Robles S, Pacheco-Herrero M, Luna-Muñoz J. Molecular Processing of Tau Protein in Progressive Supranuclear Palsy: Neuronal and Glial Degeneration. J Alzheimers Dis 2021; 79:1517-1531. [PMID: 33459640 PMCID: PMC7990452 DOI: 10.3233/jad-201139] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Alzheimer's disease (AD) and progressive supranuclear palsy (PSP) are examples of neurodegenerative diseases, characterized by abnormal tau inclusions, that are called tauopathies. AD is characterized by highly insoluble paired helical filaments (PHFs) composed of tau with abnormal post-translational modifications. PSP is a neurodegenerative disease with pathological and clinical heterogeneity. There are six tau isoforms expressed in the adult human brain, with repeated microtubule-binding domains of three (3R) or four (4R) repeats. In AD, the 4R:3R ratio is 1:1. In PSP, the 4R isoform predominates. The lesions in PSP brains contain phosphorylated tau aggregates in both neurons and glial cells. OBJECTIVE Our objective was to evaluate and compare the processing of pathological tau in PSP and AD. METHODS Double and triple immunofluorescent labeling with antibodies to specific post-translational tau modifications (phosphorylation, truncation, and conformational changes) and thiazin red (TR) staining were carried out and analyzed by confocal microscopy. RESULTS Our results showed that PSP was characterized by phosphorylated tau in neurofibrillary tangles (NFTs) and glial cells. Tau truncated at either Glu391 or Asp421 was not observed. Extracellular NFTs (eNFTs) and glial cells in PSP exhibited a strong affinity for TR in the absence of intact or phosphorylated tau. CONCLUSION Phosphorylated tau was as abundant in PSP as in AD. The development of eNFTs from both glial cells and neuronal bodies suggests that truncated tau species, different from those observed in AD, could be present in PSP. Additional studies on truncated tau within PSP lesions could improve our understanding of the pathological processing of tau and help identify a discriminatory biomarker for AD and PSP.
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Affiliation(s)
- Alejandra Martínez-Maldonado
- Departamento de Fisiología Biofísica y Neurociencias, CINVESTAV, México City, México
- Facultad de Ciencias de la Salud, Universidad Anáhuac México Norte, México
| | | | - Charles R. Harrington
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - José Francisco Montiel-Sosa
- National Dementia BioBank, Ciencias Biológicas, Facultad de Estudios Superiores, Cuautitlán, UNAM, Estado de México, México
| | | | | | | | - Marely Bravo-Muñoz
- National Dementia BioBank, Ciencias Biológicas, Facultad de Estudios Superiores, Cuautitlán, UNAM, Estado de México, México
| | | | | | - George Perry
- College of Sciences, University of Texas at San Antonio, San Antonio, TX, USA
| | - Linda Garcés-Ramírez
- Escuela Nacional de Ciencias Biológicas, Depto. Fisiología, Instituto Politécnico Nacional, CDMX, México
| | - Fidel de la Cruz
- Escuela Nacional de Ciencias Biológicas, Depto. Fisiología, Instituto Politécnico Nacional, CDMX, México
| | - Sandra Martínez-Robles
- National Dementia BioBank, Ciencias Biológicas, Facultad de Estudios Superiores, Cuautitlán, UNAM, Estado de México, México
| | - Mar Pacheco-Herrero
- Neuroscience Research Laboratory, Faculty of Health Sciences, Pontificia Universidad Catolica Madre y Maestra, Santiago de los Caballeros, República Dominicana
| | - José Luna-Muñoz
- National Dementia BioBank, Ciencias Biológicas, Facultad de Estudios Superiores, Cuautitlán, UNAM, Estado de México, México
- Banco Nacional de Cerebros-UNPHU, Universidad Nacional Pedro Henríquez Ureña, República Dominicana
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25
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Coughlin DG, Dickson DW, Josephs KA, Litvan I. Progressive Supranuclear Palsy and Corticobasal Degeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1281:151-176. [PMID: 33433875 DOI: 10.1007/978-3-030-51140-1_11] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD) are neurodegenerative tauopathies with neuronal and glial lesions composed of tau that is composed predominantly of isomers with four repeats in the microtubule-binding domain (4R tau). The brain regions vulnerable to pathology in PSP and CBD overlap, but there are differences, particularly with respect to distribution of neuronal loss, the relative abundance of neuronal and glial lesions, the morphologic features of glial lesions, and the frequency of comorbid pathology. Both PSP and CBD have a wide spectrum of clinical manifestations, including disorders of movement and cognition. Recognition of phenotypic diversity in PSP and CBD may improve antemortem diagnostic accuracy, which tends to be very good for the most common presentation of PSP (Richardson syndrome), but poor for the most characteristic presentation of CBD (corticobasal syndrome: CBS). Development of molecular and imaging biomarkers may improve antemortem diagnostic accuracy. Currently, multidisciplinary symptomatic and supportive treatment with pharmacological and non-pharmacological strategies remains the standard of care. In the future, experimental therapeutic trials will be important to slow disease progression.
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Affiliation(s)
| | | | | | - Irene Litvan
- UC San Diego Department of Neurosciences, La Jolla, CA, USA.
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Morgan JC, Ye X, Mellor JA, Golden KJ, Zamudio J, Chiodo LA, Bao Y, Xie T. Disease course and treatment patterns in progressive supranuclear palsy: A real-world study. J Neurol Sci 2020; 421:117293. [PMID: 33385754 DOI: 10.1016/j.jns.2020.117293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Progressive supranuclear palsy (PSP) is a neurodegenerative disorder with symptoms including vertical gaze palsy, frequent falls, abnormal gait, and cognitive/language/behavioral changes, making diagnosis and treatment challenging. METHODS Descriptive analysis was undertaken of cross-sectional, real-world data for patients with PSP provided by neurologists in France, Germany, Italy, Spain, UK, and USA. RESULTS Data on 892 PSP patients were obtained from patient records. Common initial symptoms included difficulty walking/maintaining gait, confusion/disorientation, loss of balance/falling, and rigidity. These symptoms and vertical gaze palsy commonly aided diagnosis. At data collection, dysphagia and blepharospasm were also very common. Mean times from symptom-onset to consulting a healthcare professional and PSP diagnosis were 5.2 and 15.0 months, respectively. General practitioners or movement disorder specialists were most commonly consulted initially; 98% of patients were diagnosed with PSP by a movement disorder specialist or general neurologist. Alternative diagnoses, including Parkinson's disease (67%) and dementia (10%), were considered for 41% of patients prior to PSP diagnosis. Non-wheelchair walking aids and wheelchairs were used by 60% and 23% of patients, respectively, with mean times from symptom-onset to use being 20.8 and 39.5 months, respectively. Symptomatic medication, most often levodopa and antidepressants, was prescribed for 87% of patients. CONCLUSION This study provided information on disease course and treatment for a large number of PSP patients from various countries. PSP carries a considerable clinical burden. Diagnosis is often delayed. Consulting a movement disorder specialist might expediate diagnosis. Currently, only symptomatic treatments are available with a poor satisfaction, and there is an urgent need for disease-modifying agents.
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Affiliation(s)
- John C Morgan
- Movement & Memory Disorders Program, Parkinson Foundation Center of Excellence, Department of Neurology, Medical College of Georgia, Augusta University, Augusta, GA, USA.
| | | | | | | | | | | | | | - Tao Xie
- Movement Disorder Program, Department of Neurology, University of Chicago Medicine, Chicago, IL, USA.
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Louis ED, Faust PL. Essential tremor: the most common form of cerebellar degeneration? CEREBELLUM & ATAXIAS 2020; 7:12. [PMID: 32922824 PMCID: PMC7427947 DOI: 10.1186/s40673-020-00121-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023]
Abstract
Background The degenerative cerebellar ataxias comprise a large and heterogeneous group of neurological diseases whose hallmark clinical feature is ataxia, and which are accompanied, to variable degrees, by other features that are attributable to cerebellar dysfunction. Essential tremor (ET) is an exceptionally common neurological disease whose primary motor feature is action tremor, although patients often manifest intention tremor, mild gait ataxia and several other features of cerebellar dysfunction. Main Body In this paper, we review the abundant evidence derived from clinical, neuroimaging and postmortem studies, linking ET to cerebellar dysfunction. Furthermore, we review the combination of clinical, natural history and postmortem features suggesting that ET is neurodegenerative. We then compare the prevalence of ET (400 – 900 cases per 100,000) to that of the other cerebellar degenerations (ranging from <0.5 – 9 cases per 100,000, and in composite likely to be on the order of 20 cases per 100,000) and conclude that ET is 20 to 45 times more prevalent than all other forms of cerebellar degeneration combined. Conclusion Given the data we present, it is logical to conclude that ET is, by far, the most common form of cerebellar degeneration.
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Affiliation(s)
- Elan D Louis
- Department of Neurology and Therapeutics, University of Texas Southwestern, Dallas, TX USA
| | - Phyllis L Faust
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center and the New York Presbyterian Hospital, New York, NY USA
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Abstract
PURPOSE OF REVIEW Progressive supranuclear palsy (PSP) is a progressive adult-onset neurodegenerative disease. Abnormally, phosphorylated forms of the microtubule-associated protein tau containing four repeat domains (4R-tau) aggregate in neurons. Additionally, increasing evidence suggests that secretion and uptake of fragments of abnormal 4R-tau may play a role in disease progression. This extracellular tau is a natural target for immunotherapy. RECENT FINDINGS Three monoclonal antibodies targeting extracellular tau are in clinical stages of development. ABBV-8E12 and BIIB092 were safe in Phase 1, but both Phase two studies recently failed futility analyses. UCB0107 recently reported (in abstract form) Phase 1 safety results, and a Phase 2 study is under consideration. Stem cell therapy and the infusion of plasma are also being explored clinically. SUMMARY The likely role of extracellular tau in the progression of PSP makes tau a natural target for targeted immunotherapy. Clinical trials are still in early stages, and although tau immunotherapy has largely been shown to be safe, efficacy has yet to be demonstrated.
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Affiliation(s)
- Pavan A Vaswani
- Department of Neurology, Brigham and Women's Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Hospitalization Rates and Comorbidities in Patients with Progressive Supranuclear Palsy in Germany from 2010 to 2017. J Clin Med 2020; 9:jcm9082454. [PMID: 32751888 PMCID: PMC7465231 DOI: 10.3390/jcm9082454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 11/17/2022] Open
Abstract
Progressive supranuclear palsy (PSP) belongs to the disease spectrum of Parkinsonian syndromes. Due to the chronic and progressive neurodegenerative course of the disease, PSP patients often have to be hospitalized to undergo diagnostic and therapeutic measures. The dynamics and characteristics of PSP inpatient treatment in Germany have not been investigated thus far. The current study analyzed trends of inpatient treatment in Germany for the years 2010–2017 based on the German DRG statistics (“diagnostic-related groups”) in the category G23.- (other degenerative diseases of the basal ganglia) and with special focus on PSP (G23.1). Inpatient case numbers of the G23.- category comprised a total of 21,196 patients from 2010–2017, whereas the PSP subcategory (G23.1) amounted to 10,663 cases. In the analyzed time period, PSP patient numbers constantly increased from 963 in 2010 to 1780 in 2017 with yearly growth rates of up to 20%. Similar trends were observed for other Parkinsonian syndromes such as multiple system atrophy (MSA). Differentiating PSP inpatients by gender demonstrated a higher proportion of males (55–60%) in comparison to female patients for the entire observation period. The average age of hospitalized PSP patients over these years was between 72.3 and 73.4 years without relevant differences for gender. The most common comorbidities consisted of cardiovascular, neurological, muscular and urological disorders. In summary, the analysis demonstrates that PSP patients are increasingly hospitalized in Germany and the current concepts of stationary care have to differentiate standard practices for Parkinson’s disease (PD) to also address the needs of patients with PSP and other Parkinsonian syndromes.
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Coughlin DG, Litvan I. Progressive supranuclear palsy: Advances in diagnosis and management. Parkinsonism Relat Disord 2020; 73:105-116. [PMID: 32487421 PMCID: PMC7462164 DOI: 10.1016/j.parkreldis.2020.04.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 02/07/2023]
Abstract
Progressive supranuclear palsy (PSP) is a complex clinicopathologic disease with no current cure or disease modulating therapies that can only be definitively confirmed at autopsy. Growing understanding of the phenotypic diversity of PSP has led to expanded clinical criteria and new insights into etiopathogenesis that coupled with improved in vivo biomarkers makes increased access to current clinical trials possible. Current standard-of-care treatment of PSP is multidisciplinary, supportive and symptomatic, and several trials of potentially disease modulating agents have already been completed with disappointing results. Current ongoing clinical trials target the abnormal aggregation of tau through a variety of mechanisms including immunotherapy and gene therapy offer a more direct method of treatment. Here we review PSP clinicopathologic correlations, in vivo biomarkers including MRI, PET, and CSF biomarkers. We additionally review current pharmacologic and non-pharmacologic methods of treatment, prior and ongoing clinical trials in PSP. Newly expanded clinical criteria and improved specific biomarkers will aid in identifying patients with PSP earlier and more accurately and expand access to these potentially beneficial clinical trials.
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Affiliation(s)
- David G Coughlin
- Department of Neurosciences, University of California San Diego, San Diego, CA, 92093, USA
| | - Irene Litvan
- Department of Neurosciences, University of California San Diego, San Diego, CA, 92093, USA.
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Höllerhage M. Secondary parkinsonism due to drugs, vascular lesions, tumors, trauma, and other insults. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 149:377-418. [PMID: 31779822 DOI: 10.1016/bs.irn.2019.10.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In addition to neurodegenerative disorders, there are many secondary forms of parkinsonism. The most common cause for secondary parkinsonism is the intake of distinct drugs. Neuroleptics and calcium channel blockers have been mainly described to induce parkinsonism, but also other drugs were suspected to cause or worsen parkinsonism. Another common cause for secondary parkinsonism are vascular lesions (i.e. vascular parkinsonism). Furthermore, also brain tumors have been described as rare causes for parkinsonism. Moreover, parkinsonism can be caused by chronic traumatic encephalopathy, which is a special case, since secondary insults to the brain leads to the occurrence of a neuropathologically defined disease. Other rare causes for secondary parkinsonism are lesions caused by infectious or immunological diseases as well as toxins or street drugs.
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Affiliation(s)
- Matthias Höllerhage
- Department for Neurology Hannover Medical School (MHH), Hannover, Germany; German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
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Giagkou N, Höglinger GU, Stamelou M. Progressive supranuclear palsy. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 149:49-86. [PMID: 31779824 DOI: 10.1016/bs.irn.2019.10.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Progressive supranuclear palsy (PSP) is a neurodegenerative disease characterized pathologically by 4 repeat tau deposition in various cell types and anatomical regions. Richardson's syndrome (RS) is the initially described and one of the clinical phenotypes associated with PSP pathology, characterized by vertical supranuclear gaze paly in particular downwards, postural instability with early falls and subcortical frontal dementia. PSP can manifest as several other clinical phenotypes, including PSP-parkinsonism, -pure akinesia with gait freezing, -frontotemporal dementia, - corticobasal syndrome, - speech/language impairment. RS can also have a pathologic diagnosis other than PSP, including corticobasal degeneration, FTD-TDP-43 and others. New clinical diagnostic criteria take into account this phenotypic variability in an attempt to diagnose the disease earlier, given the current lack of a validated biomarker. At present, therapeutic options for PSP are symptomatic and insufficient. Recent large neuroprotective trials have failed to provide a positive clinical outcome, however, have led to the design of better studies that are ongoing and hold promise for a neuroprotective treatment for PSP.
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Affiliation(s)
- Nikolaos Giagkou
- Parkinson's Disease and Movement Disorders Department, HYGEIA Hospital, Athens, Greece
| | - Günter U Höglinger
- Department for Neurology Hannover Medical School (MHH), Hannover, Germany; German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Maria Stamelou
- Parkinson's Disease and Movement Disorders Department, HYGEIA Hospital, Athens, Greece; Aiginiteion Hospital, First Department of Neurology, University of Athens, Greece; Clinic for Neurology, Philipps University, Marburg, Germany
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Shoeibi A, Olfati N, Litvan I. Frontrunner in Translation: Progressive Supranuclear Palsy. Front Neurol 2019; 10:1125. [PMID: 31695675 PMCID: PMC6817677 DOI: 10.3389/fneur.2019.01125] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 10/08/2019] [Indexed: 12/26/2022] Open
Abstract
Progressive supranuclear palsy (PSP) is a four-repeat tau proteinopathy. Abnormal tau deposition is not unique for PSP and is the basic pathologic finding in some other neurodegenerative disorders such as Alzheimer's disease (AD), age-related tauopathy, frontotemporal degeneration, corticobasal degeneration, and chronic traumatic encephalopathy. While AD research has mostly been focused on amyloid beta pathology until recently, PSP as a prototype of a primary tauopathy with high clinical-pathologic correlation and a rapid course is a crucial candidate for tau therapeutic research. Several novel approaches to slow disease progression are being developed. It is expected that the benefits of translational research in this disease will extend beyond the PSP population. This article reviews advances in the diagnosis, epidemiology, pathology, hypothesized etiopathogenesis, and biomarkers and disease-modifying therapeutic approaches of PSP that is leading it to become a frontrunner in translation.
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Affiliation(s)
- Ali Shoeibi
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nahid Olfati
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Irene Litvan
- UC San Diego Department of Neurosciences, Parkinson and Other Movement Disorder Center, La Jolla, CA, United States
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Niemann N, Jankovic J. Juvenile parkinsonism: Differential diagnosis, genetics, and treatment. Parkinsonism Relat Disord 2019; 67:74-89. [DOI: 10.1016/j.parkreldis.2019.06.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/24/2019] [Accepted: 06/28/2019] [Indexed: 12/12/2022]
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Factor SA, Burkhard PR, Caroff S, Friedman JH, Marras C, Tinazzi M, Comella CL. Recent developments in drug-induced movement disorders: a mixed picture. Lancet Neurol 2019; 18:880-890. [PMID: 31279747 DOI: 10.1016/s1474-4422(19)30152-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 03/17/2019] [Accepted: 03/19/2019] [Indexed: 01/14/2023]
Abstract
A large and ever-growing number of medications can induce various movement disorders. Drug-induced movement disorders are disabling but are often under-recognised and inappropriately managed. In particular, second generation antipsychotics, like first generation agents, are associated with potentially debilitating side-effects, most notably tardive syndromes and parkinsonism, as well as potentially fatal acute syndromes. Appropriate, evidence-based management is essential as these drugs are being prescribed to a growing population vulnerable to these side-effects, including children and elderly people. Prevention of the development of drug-induced movement disorders is an important consideration when prescribing medications that can induce movement disorders. Recent developments in diagnosis, such as the use of dopamine transporter imaging for drug-induced parkinsonism, and treatment, with the approval of valbenazine and deutetrabenazine, the first drugs indicated for tardive syndromes, have improved outcomes for many patients with drug-induced movement disorders. Future research should focus on development of safer antipsychotics and specific therapies for the different tardive syndromes and the treatment of drug-induced parkinsonism.
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Affiliation(s)
- Stewart A Factor
- Jean and Paul Amos Parkinson's Disease and Movement Disorders Program, Emory University School of Medicine, Atlanta, GA, USA.
| | - Pierre R Burkhard
- Department of Neurology, Faculty of Medicine, Geneva University Hospitals, University of Geneva, Geneva, Switzerland
| | - Stanley Caroff
- Corporal Michael J Crescenz VA Medical Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph H Friedman
- Butler Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Connie Marras
- Edmond J Safra Program in Parkinson's Research, University of Toronto, Toronto Western Hospital, Toronto, ON, Canada
| | - Michele Tinazzi
- Department of Neuroscience, Biomedicine, and Movement, University of Verona, Verona, Italy
| | - Cynthia L Comella
- Department of Neurological Sciences, Rush Medical College, Chicago, IL, USA
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Affiliation(s)
- Nikolaos Giagkou
- Parkinson’s disease and Movement Disorders Department, Hygeia Hospital, Athens, Greece
| | - Maria Stamelou
- Parkinson’s disease and Movement Disorders Department, Hygeia Hospital, Athens, Greece
- Neurology Clinic, Philipps-University, Marburg, Germany
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Classification of degenerative parkinsonism subtypes by support-vector-machine analysis and striatal 123I-FP-CIT indices. J Neurol 2019; 266:1771-1781. [PMID: 31037416 PMCID: PMC6586917 DOI: 10.1007/s00415-019-09330-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/10/2019] [Accepted: 04/21/2019] [Indexed: 12/30/2022]
Abstract
Objectives To provide an automated classification method for degenerative parkinsonian syndromes (PS) based on semiquantitative 123I-FP-CIT SPECT striatal indices and support-vector-machine (SVM) analysis. Methods 123I-FP-CIT SPECT was performed at a single-center level on 370 individuals with PS, including 280 patients with Parkinson’s disease (PD), 21 with multiple system atrophy-parkinsonian type (MSA-P), 41 with progressive supranuclear palsy (PSP) and 28 with corticobasal syndrome (CBS) (mean age 70.3 years, 47% female, mean disease duration at scan 1.4 year), as well as 208 age- and gender-matched control subjects. Striatal volumes-of-interest (VOIs) uptake, VOIs asymmetry indices (AIs) and caudate/putamen (C/P) ratio were used as input for SVM individual classification using fivefold cross-validation. Results Univariate analyses showed significantly lower VOIs uptake, higher striatal AI and C/P ratio for each PS in comparison to controls (all p < 0.001). Among PS, higher degree of striatal impairment was observed in MSA-P and PSP, while CBS showed moderate uptake reduction and higher AI. Binary SVM classification showed 92.9% accuracy in distinguishing PS from controls. Classification based on each binary combination of PS ranged 62.9–83.7% accuracy with the most satisfactory results when separating CBS from the other PS. Sensitivity and specificity values were high and balanced ranging from 60 to 80% for all analyses with > 70% accuracy. Overall, striatal AI and C/P ratio on the more affected side had the highest weighting factors. Conclusion Semiquantitative 123I-FP-CIT SPECT striatal evaluation combined with SVM represents a promising approach to disentangle PD from non-degenerative conditions and from atypical PS at the early stage.
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Abstract
Drug-induced Parkinsonism (DIP) represents the second most-frequent etiology of Parkinson syndromes after neurodegenerative disorders. It has been described mainly for antipsychotics, Ca-channel blockers, antiemetics, and gastrointestinal prokinetics. In this article, we present a clinical case series of 10 patients, retrieved within our movement disorders hospital, with DIP under intake of opipramol. Symptoms completely resolved after drug withdrawal, and associated risk factors were old age, high doses, and presence of cortical atrophy. This frequently prescribed anxiolytic drug has so far not been associated with DIP. Our objective is to raise awareness of DIP as an adverse effect of opipramol.
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