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Ning P, Mu X, Guo X, Li R. Hearing loss is not associated with risk of Parkinson's disease: A Mendelian randomization study. Heliyon 2024; 10:e32533. [PMID: 38961984 PMCID: PMC11219492 DOI: 10.1016/j.heliyon.2024.e32533] [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: 12/24/2023] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 07/05/2024] Open
Abstract
Purpose A few observational studies have indicated that Parkinson's disease (PD) risk may be higher in those with hearing loss, but the two's causal relationship is yet unknown. Using Mendelian randomization (MR) methods, this study sought to explore the causal link between hearing loss and the risk of PD. Methods We identified single nucleotide polymorphisms (SNPs) linked to hearing loss (P-value<5E-08) in a genome-wide association study (GWAS) included 323,978 people from the UK Biobank. The summary data for PD in the discovery group came from a GWAS meta-analysis of 33,647 cases and 449,056 healthy participants of European descent. Using summary data from the aforementioned GWAS of PD (N = 33,647) and hearing loss (N = 323,978), we carried out a two-sample MR study. As validation groups, two separate PD GWAS studies were used. Inverse variance weighting (IVW) was utilized in the principal MR analysis. For our findings to be reliable, further analyses were carried out with the Cochran's Q test, MR-Egger intercept, and leave-one-out analysis. In addition, we assessed the causal link between various forms of hearing loss and PD using the IVW approach. Results Twenty-two SNPs with genome-wide significance linked to hearing loss were used as instrumental factors. In the discovery dataset, we failed to detect a causal relationship between hearing loss and PD (OR = 1.297; 95 % CI = 0.420-4.007; P-value = 0.651). The findings of other methods agreed with the IVW method. The results were robust under sensitivity analyses. Furthermore, the above findings were confirmed in two validation PD datasets. Additionally, no causal correlation was found between genetic prediction of four different types of hearing loss and PD (conductive hearing loss, IVW: OR = 1.058, 95%CI = 0.988-1.133, P-value = 0.108; sudden idiopathic hearing loss, IVW: OR = 0.936, 95%CI = 0.863-1.016, P-value = 0.113; mixed conductive and sensorineural hearing loss, IVW: OR = 0.963, 95%CI = 0.878-1.058, P-value = 0.436; sensorineural hearing loss, IVW: OR = 1.050, 95%CI = 0.948-1.161, P-value = 0.354). Conclusion In those of European heritage, our investigation revealed no causal link between hearing loss and PD risk.
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Affiliation(s)
- Pingping Ning
- Department of Geriatric Neurology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Shaanxi Provincial Clinical Research Center for Geriatric Medicine, Xi'an, 710068, China
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xin Mu
- Department of Neurology, Chengdu First People's Hospital, No. 18 Wanxiang North Road, Chengdu, 610041, China
| | - Xingzhi Guo
- Department of Geriatric Neurology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Shaanxi Provincial Clinical Research Center for Geriatric Medicine, Xi'an, 710068, China
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Rui Li
- Department of Geriatric Neurology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Shaanxi Provincial Clinical Research Center for Geriatric Medicine, Xi'an, 710068, China
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710072, China
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Hong J, Li Y, Chen L, Han D, Li Y, Mi X, Liu K, Wang Q, Song Y, Liu T, Yang N, Liu Y, Li Z, Guo X. A53T α-synuclein mutation increases susceptibility to postoperative delayed neurocognitive recovery via hippocampal Ang-(1-7)/MasR axis. Biochem Pharmacol 2024; 224:116261. [PMID: 38705534 DOI: 10.1016/j.bcp.2024.116261] [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: 01/15/2024] [Revised: 04/28/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Delayed neurocognitive recovery (dNCR) is a common complication in geriatric surgical patients. The impact of anesthesia and surgery on patients with neurodegenerative diseases, such as Parkinson's disease (PD) or prion disease, has not yet been reported. In this study, we aimed to determine the association between a pre-existing A53T genetic background, which involves a PD-related point mutation, and the development of postoperative dNCR. We observed that partial hepatectomy induced hippocampus-dependent cognitive deficits in 5-month-old A53T transgenic mice, a model of early-stage PD without cognitive deficits, unlike in age-matched wild-type (WT) mice. We respectively examined molecular changes at 6 h, 1 day, and 2 days after partial hepatectomy and observed that cognitive changes were accompanied by weakened angiotensin-(1-7)/Mas receptor [Ang-(1-7)/MasR] axis, increased alpha-synuclein (α-syn) expression and phosphorylation, decreased methylated protein phosphatase-2A (Me-PP2A), and prompted microglia M1 polarization and neuronal apoptosis in the hippocampus at 1 day after surgery. Nevertheless, no changes in blood-brain barrier (BBB) integrity or plasma α-syn levels in either A53T or WT mice. Furthermore, intranasal administration of selective MasR agonist AVE 0991, reversed the mentioned cognitive deficits in A53T mice, enhanced MasR expression, reduced α-syn accumulation and phosphorylation, and attenuated microglia activation and apoptotic response. Our findings suggest that individuals with the A53T genetic background may be more susceptible to developing postoperative dNCR. This susceptibility could be linked to central α-syn accumulation mediated by the weakened Ang-(1-7)/MasR/methyl-PP2A signaling pathway in the hippocampus following surgery, independent of plasma α-syn level and BBB.
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Affiliation(s)
- Jingshu Hong
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Yue Li
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Lei Chen
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Dengyang Han
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Yitong Li
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Xinning Mi
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Kaixi Liu
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Qian Wang
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Yanan Song
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China; Beijing Center of Quality Control and Improvement on Clinical Anesthesia, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Taotao Liu
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Ning Yang
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Yajie Liu
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Zhengqian Li
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China; Beijing Center of Quality Control and Improvement on Clinical Anesthesia, No. 49, North Garden Street, Haidian District, Beijing 100191, China; Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), No. 49, North Garden Street, Haidian District, Beijing 100191, China.
| | - Xiangyang Guo
- Department of Anesthesiology, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China; Beijing Center of Quality Control and Improvement on Clinical Anesthesia, No. 49, North Garden Street, Haidian District, Beijing 100191, China; Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), No. 49, North Garden Street, Haidian District, Beijing 100191, China.
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Gui M, Lv L, Qin L, Wang C. Vestibular dysfunction in Parkinson's disease: a neglected topic. Front Neurol 2024; 15:1398764. [PMID: 38846039 PMCID: PMC11153727 DOI: 10.3389/fneur.2024.1398764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/14/2024] [Indexed: 06/09/2024] Open
Abstract
Dizziness and postural instability are frequently observed symptoms in patient with Parkinson's disease (PD), potentially linked to vestibular dysfunction. Despite their significant impact on quality of life, these symptoms are often overlooked and undertreated in clinical practice. This review aims to summarize symptoms associated with vestibular dysfunction in patients with PD and discusses vestibular-targeted therapies for managing non-specific dizziness and related symptoms. We conducted searches in PubMed and Web of Science using keywords related to vestibular dysfunction, Parkinson's disease, dizziness, and postural instability, alongside the reference lists of relevant articles. The available evidence suggests the prevalence of vestibular dysfunction-related symptoms in patients with PD and supports the idea that vestibular-targeted therapies may be effective in improving PD symptoms.
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Affiliation(s)
- Meilin Gui
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lingling Lv
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lixia Qin
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
- China National Clinical Research Center on Mental Disorders, Changsha, China
| | - Chunyu Wang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, China
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Manes JL, Bullock L, Meier AM, Turner RS, Richardson RM, Guenther FH. A neurocomputational view of the effects of Parkinson's disease on speech production. Front Hum Neurosci 2024; 18:1383714. [PMID: 38812472 PMCID: PMC11133703 DOI: 10.3389/fnhum.2024.1383714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/23/2024] [Indexed: 05/31/2024] Open
Abstract
The purpose of this article is to review the scientific literature concerning speech in Parkinson's disease (PD) with reference to the DIVA/GODIVA neurocomputational modeling framework. Within this theoretical view, the basal ganglia (BG) contribute to several different aspects of speech motor learning and execution. First, the BG are posited to play a role in the initiation and scaling of speech movements. Within the DIVA/GODIVA framework, initiation and scaling are carried out by initiation map nodes in the supplementary motor area acting in concert with the BG. Reduced support of the initiation map from the BG in PD would result in reduced movement intensity as well as susceptibility to early termination of movement. A second proposed role concerns the learning of common speech sequences, such as phoneme sequences comprising words; this view receives support from the animal literature as well as studies identifying speech sequence learning deficits in PD. Third, the BG may play a role in the temporary buffering and sequencing of longer speech utterances such as phrases during conversational speech. Although the literature does not support a critical role for the BG in representing sequence order (since incorrectly ordered speech is not characteristic of PD), the BG are posited to contribute to the scaling of individual movements in the sequence, including increasing movement intensity for emphatic stress on key words. Therapeutic interventions for PD have inconsistent effects on speech. In contrast to dopaminergic treatments, which typically either leave speech unchanged or lead to minor improvements, deep brain stimulation (DBS) can degrade speech in some cases and improve it in others. However, cases of degradation may be due to unintended stimulation of efferent motor projections to the speech articulators. Findings of spared speech after bilateral pallidotomy appear to indicate that any role played by the BG in adult speech must be supplementary rather than mandatory, with the sequential order of well-learned sequences apparently represented elsewhere (e.g., in cortico-cortical projections).
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Affiliation(s)
- Jordan L. Manes
- Department of Speech, Language, and Hearing Sciences, Boston University, Boston, MA, United States
- Department of Communicative Disorders and Sciences, University at Buffalo, Buffalo, NY, United States
| | - Latané Bullock
- Program in Speech and Hearing Bioscience and Technology, Division of Medical Sciences, Harvard Medical School, Boston, MA, United States
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Andrew M. Meier
- Department of Speech, Language, and Hearing Sciences, Boston University, Boston, MA, United States
| | - Robert S. Turner
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, United States
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, United States
| | - R. Mark Richardson
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Frank H. Guenther
- Department of Speech, Language, and Hearing Sciences, Boston University, Boston, MA, United States
- Department of Biomedical Engineering, Boston University, Boston, MA, United States
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, United States
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Fukuda M, Okanishi H, Ino D, Ono K, Kawamura S, Wakai E, Miyoshi T, Sato T, Ohta Y, Saito T, Saido TC, Inohara H, Kanai Y, Hibino H. Disturbance in the protein landscape of cochlear perilymph in an Alzheimer's disease mouse model. PLoS One 2024; 19:e0303375. [PMID: 38728348 PMCID: PMC11086917 DOI: 10.1371/journal.pone.0303375] [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: 01/16/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024] Open
Abstract
Hearing loss is a pivotal risk factor for dementia. It has recently emerged that a disruption in the intercommunication between the cochlea and brain is a key process in the initiation and progression of this disease. However, whether the cochlear properties can be influenced by pathological signals associated with dementia remains unclear. In this study, using a mouse model of Alzheimer's disease (AD), we investigated the impacts of the AD-like amyloid β (Aβ) pathology in the brain on the cochlea. Despite little detectable change in the age-related shift of the hearing threshold, we observed quantitative and qualitative alterations in the protein profile in perilymph, an extracellular fluid that fills the path of sound waves in the cochlea. Our findings highlight the potential contribution of Aβ pathology in the brain to the disturbance of cochlear homeostasis.
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Affiliation(s)
- Masatoshi Fukuda
- Department of Pharmacology, Division of Glocal Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
- Department of Otorhinolaryngology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hiroki Okanishi
- Department of Bio-System Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Daisuke Ino
- Department of Pharmacology, Division of Glocal Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Kazuya Ono
- Department of Pharmacology, Division of Glocal Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Satoru Kawamura
- Department of Pharmacology, Division of Glocal Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Eri Wakai
- Department of Pharmacology, Division of Glocal Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tsuyoshi Miyoshi
- Department of Otorhinolaryngology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takashi Sato
- Department of Otorhinolaryngology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yumi Ohta
- Department of Otorhinolaryngology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takashi Saito
- Department of Neurocognitive Science, Institute of Brain Science, Nagoya City University, Nagoya, Aichi, Japan
| | - Takaomi C. Saido
- Lab for Proteolytic Neuroscience, RIKEN Center for Brain Science, Wako, Saitama, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yoshikatsu Kanai
- Department of Bio-System Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
- Institute for Open and Transdisciplinary Research Initiatives, Osaka, Japan
| | - Hiroshi Hibino
- Department of Pharmacology, Division of Glocal Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
- AMED-CREST, AMED, Osaka, Japan
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Cha CH, Lin TK, Wu CN, Yang CH, Huang YW, Hwang CF. Relationship of Hearing Loss to Parkinson's Disease, Dementia, and APOE Genotype in Adults. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:703. [PMID: 38792885 PMCID: PMC11122976 DOI: 10.3390/medicina60050703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 05/26/2024]
Abstract
Background: Hearing loss has been recognized as a risk factor for dementia and non-motor features of Parkinson's disease (PD). The apolipoprotein E (APOE) protein contributes to maintenance and repair of neuronal cell membranes, causing age-related disorders. This study aimed to analyze the impact of hearing loss on cognitive impairment, PD severity, and APOE gene expression in these patients. Methods: A total of 72 out-patients diagnosed with either PD or hearing loss were enrolled in this study. The hearing assessment included pure-tone audiometry, speech reception thresholds, and speech discrimination ability. Dementia was assessed by filling out the Clinical Dementia Rating and Mini-Mental State Examination questionnaires. The severity of PD was assessed using the Modified Hoehn and Yahr scale. Blood samples were tested for the gene expression of APOE. Results: Out of the 72 cases, there were 44 males and 28 females, with an average age of 64.4 ± 9.1 years. A total of 41 out of 72 cases had dementia and had a worse hearing threshold than those without dementia (47.1 ± 24.4 vs. 31.7 ± 22.1 dB, p = 0.006). A total of 58 patients were diagnosed with PD, with 14 of them classified as having severe symptoms (Modified Hoehn and Yahr scale > 2). Patients with severe PD were found to have a worse hearing threshold (49.6 ± 28.3 vs. 30.3 ± 17.8 dB, p = 0.028) and higher prevalence of dementia (12/14 vs. 18/44, p = 0.006). Among 10 individuals with the APOE ε4 gene, the prevalence of dementia was higher than those without the ε4 allele (9/10 vs. 32/62, p = 0.036). Conclusions: Hearing loss is common in severe PD and in dementia patients. Severe PD has a negative impact on the hearing threshold and cognitive dysfunction. Patients with APOE ε4 have a higher prevalence of dementia.
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Affiliation(s)
- Chih-Hung Cha
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Kaohsiung 83301, Taiwan; (C.-H.C.)
| | - Tsu-Kung Lin
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
- Center of Parkinson’s Disease, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Ching-Nung Wu
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Kaohsiung 83301, Taiwan; (C.-H.C.)
| | - Chao-Hui Yang
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Kaohsiung 83301, Taiwan; (C.-H.C.)
| | - Yi-Wen Huang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Chung-Feng Hwang
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Kaohsiung 83301, Taiwan; (C.-H.C.)
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Garasto E, Stefani A, Pierantozzi M, Conti M, Moleti A, Sisto R, Viziano A, Liguori C, Schirinzi T, Mercuri NB, Cerroni R. Hearing dysfunction heralds an increase in non-motor burden and a worse quality of life in Parkinson's disease: new insights from non-motor spectrum. Neurol Sci 2024:10.1007/s10072-024-07487-8. [PMID: 38561486 DOI: 10.1007/s10072-024-07487-8] [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: 02/06/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Sensorial non-motor symptoms (NMSs) in Parkinson's disease (PD) still lack appropriate investigation in clinical practice. This study aimed to assess if and to what extent auditory dysfunction is associated with other NMSs in PD and its impact on patient's quality of life (QoL). METHODS We selected patients with idiopathic PD, without other concomitant neurological diseases, dementia, or diagnosis of any audiological/vestibular disease. Demographic and clinical data were collected. Patients underwent otoscopic examination, audiological testing with pure tone audiometry (PTA) and distortion product otoacoustic emissions (DPOAEs) and completed Non-Motor Symptoms Scale (NMSS) and Parkinson's Disease Questionnaires-39 (PDQ-39). ANCOVA and partial correlation analysis have been used for statistical analysis. RESULTS 60 patients were enrolled and completed PTA and DPOAEs. 32 patients with hearing impairment (HI), assessed by PTA, (hearing threshold ≥ 25 dB) showed similar disease duration, motor impairment, and staging, compared to patients without HI, but higher scores both in NMSS and in PDQ-39, except for cardiovascular (CV), gastrointestinal (GI), urogenital (U) and sexual function (SF) of NMSS. In addition, DPOAEs showed a significant correlation with higher scores both in NMSS and PDQ-39, except for CV, SF, GI, U and perceptual problem subdomains of NMSS. CONCLUSION This study demonstrated that PD patients with HI have a greater burden of NMS and lower related QoL and functioning. Our results highlight the importance to reconsider HI as a NMS, in parallel with the others. HI evaluation, even in asymptomatic patients, may reveal a wider pathology with a worse QoL.
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Affiliation(s)
- Elena Garasto
- UOSD Parkinson's Centre, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford 81, 00133, Rome, Italy
| | - Alessandro Stefani
- UOSD Parkinson's Centre, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford 81, 00133, Rome, Italy
| | - Mariangela Pierantozzi
- UOSD Parkinson's Centre, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford 81, 00133, Rome, Italy
| | - Matteo Conti
- UOSD Parkinson's Centre, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford 81, 00133, Rome, Italy
| | - Arturo Moleti
- Department of Physics, University of Rome "Tor Vergata", Via Della Ricerca Scientifica 1, 00133, Rome, Italy
| | - Renata Sisto
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Via Di Fontana Candida, INAIL Research, Via Di Fontana Candida, 1, 00078, Monteporzio Catone, Rome, Italy
| | - Andrea Viziano
- Department of Physics, University of Rome "Tor Vergata", Via Della Ricerca Scientifica 1, 00133, Rome, Italy
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Claudio Liguori
- UOSD Parkinson's Centre, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford 81, 00133, Rome, Italy
| | - Tommaso Schirinzi
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Nicola Biagio Mercuri
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
- IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Rocco Cerroni
- UOSD Parkinson's Centre, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford 81, 00133, Rome, Italy.
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Moleti A, Minniti T, Viziano A, Stefani A, Cerroni R, Garasto E, Pierantozzi M, Sisto R. Enhanced suppression of otoacoustic emissions by contralateral stimulation in Parkinson's disease. JASA EXPRESS LETTERS 2023; 3:104401. [PMID: 37787697 DOI: 10.1121/10.0021187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/11/2023] [Indexed: 10/04/2023]
Abstract
Dopamine depletion affects several aspects of hearing function. Previous work [Wu, Yi, Manca, Javaid, Lauer, and Glowatzki, eLife 9, e52419 (2020)] demonstrated the role of dopamine in reducing the firing rates of inner ear cells, which is thought to decrease synaptic excitotoxicity. Thus, a lack of dopamine could indirectly increase acoustic stimulation of medial olivocochlear efferents. To investigate that, here we studied contralateral suppression of distortion product otoacoustic emissions in a population of Parkinsonian patients, compared to an age-matched control group, both audiometrically tested. To rule out activation of the acoustic reflex, middle ear impedance was monitored during testing. The results show significantly stronger contralateral suppression in the patient group.
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Affiliation(s)
- Arturo Moleti
- Department of Physics, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Triestino Minniti
- Department of Physics, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Andrea Viziano
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata," 00133 Rome, Italy
- Department of Systems Medicine, Parkinson's Disease Center, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Alessandro Stefani
- Department of Systems Medicine, Parkinson's Disease Center, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Rocco Cerroni
- Department of Systems Medicine, Parkinson's Disease Center, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Elena Garasto
- Department of Systems Medicine, Parkinson's Disease Center, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Mariangela Pierantozzi
- Department of Systems Medicine, Parkinson's Disease Center, University of Rome "Tor Vergata," 00133 Rome, Italy
| | - Renata Sisto
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Istituto Nazionale per l'Assicurazione Contro gli Infortuni sul Lavoro, 00078 Monte Porzio Catone, Rome, , , , , , , ,
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Leme MS, Sanches SGG, Carvallo RMM. Peripheral hearing in Parkinson's disease: a systematic review. Int J Audiol 2023; 62:805-813. [PMID: 35980314 DOI: 10.1080/14992027.2022.2109073] [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: 06/11/2021] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the implications of Parkinson's disease (PD) in the peripheral auditory system, a systematic survey of the scientific literature was conducted. DESIGN Systematic review. STUDY SAMPLE An electronic search of the non-gray literature in the last decade was conducted using the digital databases MEDLINE® (PubMed interface), LILACS® (Virtual Health Library), Web of Science® (CAPES publications portal), and SciELO®. Studies addressing peripheral auditory function as part of the range of nonmotor PD symptoms were selected for analysis. RESULTS Pure tone audiometry data suggested that sensorineural hearing loss was more severe in the PD population than in the control groups. The effects of PD on cochlear function were evidenced by a decrease in the levels of otoacoustic emissions. CONCLUSIONS Sensorineural hearing loss and cochlear impairment are more severe in the PD population than in the control groups. Additional studies are recommended to further understand the characteristics of the peripheral auditory system in PD patients, which constitutes an emerging subject in the scientific literature.
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Affiliation(s)
- Mariana S Leme
- Department of Physiotherapy, Speech Therapy & Audiology and Occupational Therapy, Faculdade de Medicina da Universidade de São Paulo-FMUSP, São Paulo, Brazil
| | - Seisse G G Sanches
- Department of Physiotherapy, Speech Therapy & Audiology and Occupational Therapy, Faculdade de Medicina da Universidade de São Paulo-FMUSP, São Paulo, Brazil
| | - Renata M M Carvallo
- Department of Physiotherapy, Speech Therapy & Audiology and Occupational Therapy, Faculdade de Medicina da Universidade de São Paulo-FMUSP, São Paulo, Brazil
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10
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Großmann W. Listening with an Ageing Brain - a Cognitive Challenge. Laryngorhinootologie 2023; 102:S12-S34. [PMID: 37130528 PMCID: PMC10184676 DOI: 10.1055/a-1973-3038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hearing impairment has been recently identified as a major modifiable risk factor for cognitive decline in later life and has been becoming of increasing scientific interest. Sensory and cognitive decline are connected by complex bottom-up and top-down processes, a sharp distinction between sensation, perception, and cognition is impossible. This review provides a comprehensive overview on the effects of healthy and pathological aging on auditory as well as cognitive functioning on speech perception and comprehension, as well as specific auditory deficits in the 2 most common neurodegenerative diseases in old age: Alzheimer disease and Parkinson syndrome. Hypotheses linking hearing loss to cognitive decline are discussed, and current knowledge on the effect of hearing rehabilitation on cognitive functioning is presented. This article provides an overview of the complex relationship between hearing and cognition in old age.
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Affiliation(s)
- Wilma Großmann
- Universitätsmedizin Rostock, Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde,Kopf- und Halschirurgie "Otto Körner"
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11
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Premotor, nonmotor and motor symptoms of Parkinson's Disease: A new clinical state of the art. Ageing Res Rev 2023; 84:101834. [PMID: 36581178 DOI: 10.1016/j.arr.2022.101834] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 12/27/2022]
Abstract
Parkinson's Disease (PD) is a neurodegenerative disorder that affects dopaminergic neurons in the mesencephalic substantia nigra, causing a progressive clinical course characterized by pre-motor, non-motor and motor symptoms, which negatively impact the quality of life of patients and cause high health care costs. Therefore, the present study aims to discuss the clinical manifestations of PD and to make a correlation with the gut-brain (GB) axis, approaching epidemiology and therapeutic perspectives, to better understand its clinical progression and identify symptoms early. A literature review was performed regarding the association between clinical progression, the gut-brain axis, epidemiology, and therapeutic perspectives, in addition to detailing pre-motor, non-motor symptoms (neuropsychiatric, cognitive, autonomic, sleep disorders, sensory abnormalities) and cardinal motor symptoms. Therefore, this article addresses a topic of extreme relevance, since the previously mentioned clinical manifestations (pre-motor and non-motor) can often act as prodromal markers for the early diagnosis of PD and may precede it by up to 20 years.
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12
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Proteomics for comprehensive characterization of extracellular vesicles in neurodegenerative disease. Exp Neurol 2022; 355:114149. [PMID: 35732219 DOI: 10.1016/j.expneurol.2022.114149] [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: 09/06/2021] [Revised: 01/28/2022] [Accepted: 06/15/2022] [Indexed: 11/22/2022]
Abstract
Extracellular vesicles (EVs) are small lipid bilayer particles ubiquitously released by almost every cell type. A specific and selective constituents of EVs loaded with variety of proteins, lipids, small noncoding RNAs, and long non-coding RNAs are reflective of cellular events, type, and physiologic/pathophysiologic status of the cell of origin. Moreover, these molecular contents carry information from the cell of origin to recipient cells, modulating intercellular communication. Recent studies demonstrated that EVs not only play a neuroprotective role by mediating the removal of toxic proteins, but also emerge as an important player in various neurodegenerative disease onset and progression through facilitating of misfolded proteins propagation. For this reason, neurodegenerative disease-associated differences in EV proteome relative to normal EVs can be used to fulfil diagnostic, prognostic, and therapeutic purposes. Nonetheless, characterizing EV proteome obtained from biological samples (brain tissue and body fluids, including urea, blood, saliva, and CSF) is a challenging task. Herein, we review the status of EV proteome profiling and the updated discovery of potential biomarkers for the diagnosis of neurodegenerative disease with an emphasis on the integration of high-throughput advanced mass spectrometry (MS) technologies for both qualitative and quantitative analysis of EVs in different clinical tissue/body fluid samples in past five years.
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13
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Valkonen K, Mäkelä JP, Airaksinen K, Nurminen J, Kivisaari R, Renvall H, Pekkonen E. Deep brain stimulation of subthalamic nucleus modulates cortical auditory processing in advanced Parkinson’s Disease. PLoS One 2022; 17:e0264333. [PMID: 35202426 PMCID: PMC8870490 DOI: 10.1371/journal.pone.0264333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 02/08/2022] [Indexed: 12/02/2022] Open
Abstract
Deep brain stimulation (DBS) has proven its clinical efficacy in Parkinson’s disease (PD), but its exact mechanisms and cortical effects continue to be unclear. Subthalamic (STN) DBS acutely modifies auditory evoked responses, but its long-term effect on auditory cortical processing remains ambiguous. We studied with magnetoencephalography the effect of long-term STN DBS on auditory processing in patients with advanced PD. DBS resulted in significantly increased contra-ipsilateral auditory response latency difference at ~100 ms after stimulus onset compared with preoperative state. The effect is likely due to normalization of neuronal asynchrony in the auditory pathways. The present results indicate that STN DBS in advanced PD patients has long-lasting effects on cortical areas outside those confined to motor processing. Whole-head magnetoencephalography provides a feasible tool to study motor and non-motor neural networks in PD, and to track possible changes related to cortical reorganization or plasticity induced by DBS.
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Affiliation(s)
- Kati Valkonen
- Department of Neurology, Helsinki University Hospital, Finland and Department of Clinical Neurosciences (Neurology), University of Helsinki, Helsinki, Finland
- BioMag Laboratory, Helsinki University Hospital Medical Imaging Center, Helsinki University Hospital, Helsinki University and Aalto University School of Science, Helsinki, Finland
| | - Jyrki P. Mäkelä
- BioMag Laboratory, Helsinki University Hospital Medical Imaging Center, Helsinki University Hospital, Helsinki University and Aalto University School of Science, Helsinki, Finland
| | - Katja Airaksinen
- Department of Neurology, Helsinki University Hospital, Finland and Department of Clinical Neurosciences (Neurology), University of Helsinki, Helsinki, Finland
| | - Jussi Nurminen
- BioMag Laboratory, Helsinki University Hospital Medical Imaging Center, Helsinki University Hospital, Helsinki University and Aalto University School of Science, Helsinki, Finland
| | - Riku Kivisaari
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Hanna Renvall
- BioMag Laboratory, Helsinki University Hospital Medical Imaging Center, Helsinki University Hospital, Helsinki University and Aalto University School of Science, Helsinki, Finland
- Department of Neuroscience and Biomedical Engineering, Aalto University, Espoo, Finland
- * E-mail:
| | - Eero Pekkonen
- Department of Neurology, Helsinki University Hospital, Finland and Department of Clinical Neurosciences (Neurology), University of Helsinki, Helsinki, Finland
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14
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Oluwole OG, James K, Yalcouye A, Wonkam A. Hearing loss and brain disorders: A review of multiple pathologies. Open Med (Wars) 2021; 17:61-69. [PMID: 34993346 PMCID: PMC8678477 DOI: 10.1515/med-2021-0402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/22/2021] [Accepted: 11/05/2021] [Indexed: 11/29/2022] Open
Abstract
Several causative factors are associated with hearing loss (HL) and brain disorders. However, there are many unidentified disease modifiers in these conditions. Our study summarised the most common brain disorders associated with HL and highlighted mechanisms of pathologies. We searched the literature for published articles on HL and brain disorders. Alzheimer's disease/dementia, Parkinson's disease, cognitive impairment, autism spectrum disorder, ataxia, epilepsy, stroke, and hypoxic-ischaemic encephalopathy majorly co-interact with HL. The estimated incidence rate was 113 per 10,000 person-years. Genetic, epigenetic, early life/neonatal stress, hypoxia, inflammation, nitric oxide infiltration, endoplasmic reticulum stress, and excess glutamate were the distinguished modifiers identified. Various mechanisms like adhesion molecules, transport proteins, hair cell apoptosis, and neurodegeneration have been implicated in these conditions and are serving as potential targets for therapies. To improve the quality of life of patients, these understandings will improve clinical diagnoses and management of HL and brain disorders.
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Affiliation(s)
- Oluwafemi Gabriel Oluwole
- Division of Human Genetics, Faculty of Health Sciences, University of Cape Town, 3.14 Wernher & Beit North Building, P.O Box 7925, Cape Town, South Africa
| | - Kili James
- Division of Human Genetics, Faculty of Health Sciences, University of Cape Town, 3.14 Wernher & Beit North Building, P.O Box 7925, Cape Town, South Africa
| | - Abdoulaye Yalcouye
- Division of Human Genetics, Faculty of Health Sciences, University of Cape Town, 3.14 Wernher & Beit North Building, P.O Box 7925, Cape Town, South Africa
| | - Ambroise Wonkam
- Division of Human Genetics, Faculty of Health Sciences, University of Cape Town, 3.14 Wernher & Beit North Building, P.O Box 7925, Cape Town, South Africa
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15
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Giuliani NP. Factors Associated With Hearing Aid Wear Time in a Subset of U.S. Military Veterans: Tinnitus, the Presence of One or More Neurologic Conditions, and Unaided Speech Intelligibility Index. Am J Audiol 2021; 30:1114-1119. [PMID: 34546769 DOI: 10.1044/2021_aja-21-00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE A retrospective analysis was conducted to explore how tinnitus, one or more neurologic conditions, unaided speech intelligibility index, and other comorbidities impact the average number of hours hearing aids are worn each day by U.S. Military Veterans. METHOD Medical records and a hearing aid database were queried to obtain information regarding active medical problems and average daily hearing aid wear time. Multiple linear regression was used to explore these relationships for 215 male Veterans whose records were available from 2009 to 2020. To be analyzed, Veterans must have possessed their hearing aid(s) for at least 3 consecutive months. RESULTS An active problem of subjective tinnitus was associated with increased hearing aid wear time (positive association) and one or more active neurologic conditions were associated with decreased hearing aid wear time (negative association). A high unaided speech intelligibility index (greater access to speech sounds without hearing aids) was also associated with decreased hearing aid wear time (negative association). CONCLUSIONS There are many complex audiologic and medical concerns that may affect hearing aid wear time in U.S. Military Veterans. Therefore, the information from this study should be expanded on prospectively by further exploring these associations, and their severity, on hearing aid wear time. The information from this and future studies may lead to clinical recommendations with the goal of increasing daily hearing aid use in this and other populations.
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Affiliation(s)
- Nicholas P. Giuliani
- Audiology and Speech Language Pathology, James H. Quillen VA Medical Center, Mountain Home, TN
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16
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Nikmanesh N, Sarani EM, Khazraei S, Petramfar P, Ostovan VR. Diagnostic accuracy of brain stem auditory evoked response in distinguishing drug-induced parkinsonism from Parkinson'sdisease. Neurophysiol Clin 2021; 51:524-532. [PMID: 34764016 DOI: 10.1016/j.neucli.2021.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/14/2021] [Accepted: 10/14/2021] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES Brainstem auditory evoked response (BAER) is a non-invasive modality that can be used to investigate brainstem neuronal function in movement disorders. The differentiation between drug-induced parkinsonism (DIP) and Parkinson's disease (PD) can be very challenging. Although PD and DIP to some extent display similar clinical symptoms, the underlying pathophysiologic mechanisms are entirely different. Given these differences in pathogenesis, and the diagnostic utility of BAER for detecting brainstem function, BAER may help to distinguish between PD and DIP. This study aimed to assess the accuracy and predictive values of BAER parameters in differentiating DIP from PD. METHODS We prospectively studied143 participants classified within three groups, including 50 controls, 57 PD, and 36 DIP. BAER was performed on all patients in the study. Patients in the DIP group were followed up for at least one year after discontinuation of the causative drug and examined for final diagnosis. We compared BAER latencies of the three groups and measured sensitivity, specificity, predictive values, likelihood ratios, and accuracy of BAER in diagnosing DIP. RESULT Waves V, I-V, and III-V latencies were significantly prolonged among the PD patients compared to the DIP and the control group; however, there were no significant differences in BAER latencies between the DIP and the control group. Waves V and I-V latencies revealed the highest accuracy (86% and 79%, respectively) in distinguishing DIP from PD with high negative predictive value(89% and 83%, respectively) as well as a high negative likelihood ratio (0.2and 0.3, respectively). CONCLUSION This study showed that waves V and I-V latencies are significantly prolonged in PD patients compared to those with DIP, consistent with the proposed mechanisms of neurodegeneration in PD, particularly in the midbrain and pons. Consequently, BAER could be used as a useful diagnostic tool for differentiating DIP from PD.
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Affiliation(s)
- Najmeh Nikmanesh
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ebrahim Moghimi Sarani
- Research Center for Psychiatry and Behavioral Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Samaneh Khazraei
- Department of Psychiatry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Peyman Petramfar
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Reza Ostovan
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran.
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17
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Electrophysiological Evidence of Auditory and Cognitive Processing Deficits in Parkinson Disease. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6610908. [PMID: 34239927 PMCID: PMC8233099 DOI: 10.1155/2021/6610908] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 05/03/2021] [Accepted: 05/27/2021] [Indexed: 11/18/2022]
Abstract
Background Parkinson's disease (PD) patients are at increased risk for central auditory processing (CAP) deficits and cognitive dysfunction. However, behavioral assessments of CAP and cognitive processing used in a previous study by our research team found few significant differences in performance between early-stage PD patients and age-matched control subjects. The objective of this study is to use auditory event-related potentials (AERPs) to compare CAP and cognitive functions in a population of PD patients with a group of age-matched control subjects. Methods AERPs in response to tonal and speech stimuli were recorded from 35 adults who had a medical diagnosis of PD (23 males and 12 females; mean age = 66.9 ± s.d.11.2 years), and 35 age-matched control subjects who did not have PD or any other neurological disorders (31 males and 4 females; mean age = 65.4 ± s.d.12.3 years). Auditory stimuli included pure tones (500 and 1000 Hz) to elicit the P300 response and a dichotic digits paradigm to elicit the N200 processing negativity. Results Compared to control subjects, PD patients exhibited significantly longer latencies of P300 and N200 components and smaller amplitude N200 components. Latency and amplitude of the N200 component were significantly correlated with participants' age. N200 amplitude was correlated with results from the Rey Auditory Verbal Learning Test (RAVLT) of cognitive ability. Latency of the P300 and amplitude of the N200 components were significantly correlated with results from the Spatial Release From Masking (SRM) behavioral CAP assessment. Conclusions AERP assessments used in this study appear to be sensitive indicators of CAP and cognitive deficits exhibited by early-stage PD patients. While few significant differences in performance on behavioral CAP and cognitive tests were previously observed between this population of PD patients and age-matched control subjects, N200 and P300 components recorded in the present study revealed impaired neural processing by the PD group.
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18
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Letanneux A, Velay JL, Viallet F, Pinto S. Altered Inhibitory Mechanisms in Parkinson's Disease: Evidence From Lexical Decision and Simple Reaction Time Tasks. Front Hum Neurosci 2021; 15:624026. [PMID: 33981205 PMCID: PMC8107209 DOI: 10.3389/fnhum.2021.624026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 03/22/2021] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Although the motor signs of Parkinson's disease (PD) are well defined, nonmotor symptoms, including higher-level language deficits, have also been shown to be frequent in patients with PD. In the present study, we used a lexical decision task (LDT) to find out whether access to the mental lexicon is impaired in patients with PD, and whether task performance is affected by bradykinesia. MATERIALS AND METHODS Participants were 34 nondemented patients with PD, either without (off) medication (n = 16) or under optimum (on) medication (n = 18). A total of 19 age-matched control volunteers were also recruited. We recorded reaction times (RTs) to the LDT and a simple RT (control) task. In each task, stimuli were either visual or auditory. Statistical analyses consisted of repeated-measures analyses of variance and Tukey's HSD post hoc tests. RESULTS In the LDT, participants with PD both off and on medication exhibited intact access to the mental lexicon in both modalities. In the visual modality, patients off medication were just as fast as controls when identifying real words, but slower when identifying pseudowords. In the visual modality of the control task, RTs for pseudowords were significantly longer for PD patients off medication than for controls, revealing an unexpected but significant lexicality effect in patients that was not observed in the auditory modality. Performances of patients on medication did not differ from those of age-matched controls. DISCUSSION Motor execution was not slowed in patients with PD either off or on medication, in comparison with controls. Regarding lexical access, patients off medication seemed to (1) have difficulty inhibiting a cognitive-linguistic process (i.e., reading) when it was not required (simple reaction time task), and (2) exhibit a specific pseudoword processing deficit in the LDT, which may have been related to impaired lateral word inhibition within the mental lexicon. These deficits seemed to be compensated by medication.
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Affiliation(s)
- Alban Letanneux
- University Paris Est Creteil, CHArt, Bonneuil, France
- UPL, University Paris 8, CHArt, Saint-Denis, France
- EPHE, PSL University, CHArt, Aubervilliers, France
| | | | - François Viallet
- Aix-Marseille Univ, CNRS, LPL, Aix-en-Provence, France
- Neurology Department, Centre Hospitalier du Pays d’Aix, Aix-en-Provence, France
| | - Serge Pinto
- Aix-Marseille Univ, CNRS, LPL, Aix-en-Provence, France
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19
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De Groote E, Bockstael A, Botteldooren D, Santens P, De Letter M. The Effect of Parkinson's Disease on Otoacoustic Emissions and Efferent Suppression of Transient Evoked Otoacoustic Emissions. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:1354-1368. [PMID: 33769843 DOI: 10.1044/2020_jslhr-20-00594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose Several studies have demonstrated increased auditory thresholds in patients with Parkinson's disease (PD) based on subjective tonal audiometry. However, the pathophysiological mechanisms underlying auditory dysfunction in PD remain elusive. The primary aim of this study was to investigate cochlear and olivocochlear function in PD using objective measurements and to assess the effect of dopaminergic medication on auditory function. Method Eighteen patients with PD and 18 gender- and age-matched healthy controls (HCs) were included. Patients with PD participated in medication on and off conditions. Linear mixed models were used to determine the effect of PD on tonal audiometry, transient evoked and distortion product otoacoustic emissions (OAEs), and efferent suppression (ES). Results Tonal audiometry revealed normal auditory thresholds in patients with PD for their age across all frequencies. OAE signal amplitudes demonstrated a significant interaction effect between group (PD vs. HC) and frequency, indicating decreased OAEs at low frequencies and increased OAEs at high frequencies in patients with PD. No significant differences were found between patients with PD and HCs regarding ES. In addition, no significant effect of medication status was found on auditory measurements in patients with PD. Conclusions Altered OAEs support the hypothesis of cochlear alterations in PD. No evidence was found for the involvement of the medial olivocochlear system. Altogether, OAEs may provide an objective early indicator of auditory alterations in PD and should complement subjective tonal audiometry when assessing and monitoring auditory function in PD.
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Affiliation(s)
| | - Annelies Bockstael
- Acoustics Research Group, Department of Information Technology, Ghent University, Belgium
| | - Dick Botteldooren
- Acoustics Research Group, Department of Information Technology, Ghent University, Belgium
| | | | - Miet De Letter
- Department of Rehabilitation Sciences, Ghent University, Belgium
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20
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Gökay NY, Gündüz B, Söke F, Karamert R. Evaluation of Efferent Auditory System and Hearing Quality in Parkinson's Disease: Is the Difficulty in Speech Understanding in Complex Listening Conditions Related to Neural Degeneration or Aging? JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:263-271. [PMID: 33375830 DOI: 10.1044/2020_jslhr-20-00337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose The effects of neurological diseases on the auditory system have been a notable issue for investigators because the auditory pathway is closely associated with neural systems. The purposes of this study are to evaluate the efferent auditory system function and hearing quality in Parkinson's disease (PD) and to compare the findings with age-matched individuals without PD to present a perspective on aging. Method The study included 35 individuals with PD (mean age of 48.50 ± 8.00 years) and 35 normal-hearing peers (mean age of 49 ± 10 years). The following tests were administered for all participants: the first section of the Speech, Spatial and Qualities of Hearing Scale; pure-tone audiometry, speech audiometry, tympanometry, and acoustic reflexes; and distortion product otoacoustic emissions (DPOAEs) and contralateral suppression of DPOAEs. SPSS Version 25 was used for statistical analyses, and values of p < .05 were considered statistically significant. Results There were no statistically significant differences in the pure-tone audiometry thresholds and DPOAE responses between the individuals with PD and their normal-hearing peers (p = .732). However, statistically significant differences were found between the groups in suppression levels of DPOAEs and hearing quality (p < .05). In addition, a statistically significant and positive correlation was found between the amount of suppression at some frequencies and the Speech, Spatial and Qualities of Hearing Scale scores. Conclusions This study indicates that medial olivocochlear efferent system function and the hearing quality of individuals with PD were affected adversely due to the results of PD pathophysiology on the hearing system. For optimal intervention and follow-up, tasks related to hearing quality in daily life can also be added to therapies for PD.
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Affiliation(s)
| | - Bülent Gündüz
- Gazi University Faculty of Health Sciences, Department of Audiology, Ankara, Turkey
| | - Fatih Söke
- Gülhane Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Sağlık Bilimleri University, Ankara, Turkey
| | - Recep Karamert
- Gazi University Faculty of Medicine, Department of Otorhinolaryngology, Ankara, Turkey
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21
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Wu WJ, Lu CW, Wang SE, Lin CL, Su LY, Wu CH. MPTP toxicity causes vocal, auditory, orientation and movement defects in the echolocation bat. Neuroreport 2021; 32:125-134. [PMID: 33323836 DOI: 10.1097/wnr.0000000000001574] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) can damage dopaminergic neurons in the substantia nigra in many mammals with biochemical and cellular changes that are relatively similar to those observed in Parkinson's disease. Our study examined whether MPTP-treated echolocation bats can cause changes in bat echolocation system. By considering ultrasound spectrums, auditory brainstem-evoked potentials and flight trajectories of normal bats, we observed that the vocal, auditory, orientation and movement functions of MPTP-treated bats were significantly impaired, and they exhibited various symptoms resembling those in patients with Parkinson's disease. Our immunohistochemistry and western blot analyses further indicated that expression of vocal-related FOXP2 in the superior colliculus, auditory-related otoferlin in the inferior colliculus, dopamine synthesis-related aromatic l-amino acid decarboxylase in the substantia nigra and dopamine receptor in the striatum was significantly decreased. Furthermore, protein expression related to inflammation, oxidative stress and apoptosis in the substantia nigra was significantly increased in MPTP-treated bats. These results indicate that inflammation, oxidative stress and apoptosis may be instrumental in dopaminergic neurodegeneration in the substantia nigra. The vocal, auditory and orientation and movement dysfunctions of MPTP-treated bats are relatively consistent with symptoms of Parkinson's disease.
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MESH Headings
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/pharmacology
- Animals
- Apoptosis/drug effects
- Aromatic-L-Amino-Acid Decarboxylases/drug effects
- Aromatic-L-Amino-Acid Decarboxylases/metabolism
- Chiroptera
- Dopaminergic Neurons/drug effects
- Dopaminergic Neurons/metabolism
- Dopaminergic Neurons/pathology
- Echolocation/drug effects
- Evoked Potentials, Auditory, Brain Stem/drug effects
- Flight, Animal/drug effects
- Forkhead Transcription Factors/drug effects
- Forkhead Transcription Factors/metabolism
- Inferior Colliculi/drug effects
- Inferior Colliculi/metabolism
- Inflammation
- Membrane Proteins/drug effects
- Membrane Proteins/metabolism
- Movement/drug effects
- Orientation, Spatial/drug effects
- Oxidative Stress
- Parkinson Disease
- Parkinsonian Disorders/metabolism
- Parkinsonian Disorders/pathology
- Parkinsonian Disorders/physiopathology
- Receptors, Dopamine/drug effects
- Receptors, Dopamine/metabolism
- Substantia Nigra/drug effects
- Substantia Nigra/metabolism
- Substantia Nigra/pathology
- Superior Colliculi/drug effects
- Superior Colliculi/metabolism
- Vocalization, Animal/drug effects
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Affiliation(s)
- Wan-Jhen Wu
- Department of Life Science, School of Life Science, National Taiwan Normal University, Taipei, Taiwan
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22
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Jung J, Bae SH, Han JH, Kwak SH, Nam GS, Lee PH, Sohn YH, Yun M, Ye BS. Relationship between Hearing Loss and Dementia Differs According to the Underlying Mechanism. J Clin Neurol 2021; 17:290-299. [PMID: 33835751 PMCID: PMC8053549 DOI: 10.3988/jcn.2021.17.2.290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 01/23/2023] Open
Abstract
Background and Purpose The associations between hearing loss (HL) and the mechanisms underlying cognitive impairment (CI) remain unclear. We evaluated the effects of clinical factors, vascular magnetic resonance imaging (MRI) markers, and CI mechanisms on HL. Methods In total, 112 patients with CI (59% demented) and subjective HL prospectively underwent MRI, amyloid positron-emission tomography (PET), hearing evaluations, and neuropsychological tests including a language comprehension test. Patients were categorized into pure-Alzheimer's disease-related CI (ADCI), pure-Lewy-body disease-related CI (LBCI), mixed-ADCI/LBCI, and non-ADCI/LBCI groups based on clinical features and PET biomarkers. Results The risk of peripheral HL [defined as a pure-tone average (PTA) threshold >40 dB] was higher in the pure-LBCI group than in the pure-ADCI and mixed-ADCI/LBCI groups, and lower in the presence of ADCI. The non-ADCI/LBCI group had the most-severe vascular MRI markers and showed a higher risk of peripheral HL than did the pure-ADCI and mixed-ADCI/LBCI groups. While the pure-LBCI group had a higher risk of comprehension dysfunction than the pure-ADCI group regardless of the PTA and the score on the Korean version of the Mini Mental State Examination (K-MMSE), those in the pure-LBCI group even with a better K-MMSE score had a risk of comprehension dysfunction comparable to that in the mixed-ADCI/LBCI group due to a worse PTA. Conclusions Peripheral HL could be associated with the absence of significant β-amyloid deposition in patients with CI and characteristic of the pure-LBCI and non-ADCI/LBCI groups.
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Affiliation(s)
- Jinsei Jung
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.,Graduate school of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Seong Hoon Bae
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Hyuk Han
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hyun Kwak
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
| | - Gi Sung Nam
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
| | - Phil Hyu Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Young Ho Sohn
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Mijin Yun
- Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - Byung Seok Ye
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.
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23
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Kumar R, Donakonda S, Müller SA, Bötzel K, Höglinger GU, Koeglsperger T. FGF2 Affects Parkinson's Disease-Associated Molecular Networks Through Exosomal Rab8b/Rab31. Front Genet 2020; 11:572058. [PMID: 33101391 PMCID: PMC7545478 DOI: 10.3389/fgene.2020.572058] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/02/2020] [Indexed: 01/24/2023] Open
Abstract
Ras-associated binding (Rab) proteins are small GTPases that regulate the trafficking of membrane components during endocytosis and exocytosis including the release of extracellular vesicles (EVs). Parkinson’s disease (PD) is one of the most prevalent neurodegenerative disorder in the elderly population, where pathological proteins such as alpha-synuclein (α-Syn) are transmitted in EVs from one neuron to another neuron and ultimately across brain regions, thereby facilitating the spreading of pathology. We recently demonstrated fibroblast growth factor-2 (FGF2) to enhance the release of EVs and delineated the proteomic signature of FGF2-triggered EVs in cultured primary hippocampal neurons. Out of 235 significantly upregulated proteins, we found that FGF2 specifically enriched EVs for the two Rab family members Rab8b and Rab31. Consequently, we investigated the interactions of Rab8b and Rab31 using a network analysis approach in order to estimate the global influence of their enrichment in EVs. To achieve this, we have demarcated a protein–protein interaction network (PPiN) for these Rabs and identified the proteins associated with PD in various cellular components of the central nervous system (CNS), in different brain regions, and in the enteric nervous system (ENS). A total of 126 direct or indirect interactions were reported for two Rab candidates, out of which 114 are Rab8b interactions and 54 are Rab31 interactions, ultimately resulting in an individual interaction score (IS) of 90.48 and 42.86%, respectively. Conclusively, these results for the first time demonstrate the relevance of FGF2-induced Rab-enrichment in EVs and its potential to regulate PD pathophysiology.
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Affiliation(s)
- Rohit Kumar
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Faculty of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Neurology, Ludwig Maximilian University, Munich, Germany
| | - Sainitin Donakonda
- Institute of Immunology and Experimental Oncology, Technical University of Munich, Munich, Germany
| | - Stephan A Müller
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Kai Bötzel
- Department of Neurology, Ludwig Maximilian University, Munich, Germany
| | - Günter U Höglinger
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Faculty of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Neurology, Hannover Medical School, Hanover, Germany
| | - Thomas Koeglsperger
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Department of Neurology, Ludwig Maximilian University, Munich, Germany
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24
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Sisto R, Viziano A, Stefani A, Moleti A, Cerroni R, Liguori C, Garasto E, Pierantozzi M. Lateralization of cochlear dysfunction as a specific biomarker of Parkinson's disease. Brain Commun 2020; 2:fcaa144. [PMID: 33376982 PMCID: PMC7751021 DOI: 10.1093/braincomms/fcaa144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/21/2020] [Accepted: 08/03/2020] [Indexed: 11/18/2022] Open
Abstract
In the last decade, animal studies highlighted the sensitivity of hearing function to lack of specific cochlear dopamine receptors, while several studies on humans reported association between hearing loss and Parkinson's disease, partially recovered after levodopa administration in de novo patients. Taken together, these observations suggest investigating the possible use of cochlear function outcome variables, particularly, otoacoustic emissions, as sensitive biomarkers of Parkinson's disease. Any lateralization of hearing dysfunction correlated with Parkinson's disease lateralization would (i) further confirm their association and (ii) provide a disease-specific differential outcome variable. Differential indicators are particularly useful for diagnostic purposes, because their effectiveness is not limited by physiological inter-subject fluctuations of the outcome variable. Recent advances in the acquisition and analysis techniques of otoacoustic emissions suggest using them for evaluating differential cochlear damage in the two ears. In this study, we quantitatively evaluated hearing function in a population of subjects with Parkinson's disease, to investigate the occurrence of hearing loss, and, particularly, whether hearing dysfunction shows lateralization correlated with motor symptoms. Pure tone audiometry and distortion product otoacoustic emissions were used as outcome variables in 80 patients (mean age 65 ± 9 years) and 41 controls (mean age 64 ± 10 years). An advanced customized acquisition and analysis system was developed and used for otoacoustic testing, which guarantees response stability independent of probe insertion depth, and has the sensitivity necessary to accurately assess the low levels of otoacoustic response typical of elderly subjects. To our knowledge, this is the first study introducing the distinction between ipsilateral and contralateral ear, with respect to the body side more affected by Parkinson's disease motor symptoms. Significant asymmetry was found in the auditory function, as both otoacoustic responses and audiometric hearing levels were worse in the ipsilateral ear. Significantly worse hearing function was also observed in patients with Parkinson's disease compared to controls, confirming previous studies. Several pathophysiological mechanisms may be hypothesized to explain asymmetric cochlear damage in Parkinson's disease, including the impairment of dopamine release and the involvement of extra-dopaminergic circuits, with the cholinergic pathway as a likely candidate. The observed asymmetry in the audiological response of patients with Parkinson's disease suggests that lateralization of hearing dysfunction could represent a specific non-motor signature of the disease. The possible diagnostic use of cochlear dysfunction asymmetry as a specific biomarker of Parkinson's disease deserves further investigation, needing a more precise quantitative assessment, which would require a larger sample size.
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Affiliation(s)
- Renata Sisto
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, 00078 Monte Porzio Catone (Rome), Italy
| | - Andrea Viziano
- Department of Physics, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
- Department of Clinical Sciences and Translational Medicine, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Alessandro Stefani
- Department of Systems Medicine, Parkinson’s Disease Center, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Arturo Moleti
- Department of Physics, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Rocco Cerroni
- Department of Systems Medicine, Parkinson’s Disease Center, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Claudio Liguori
- Department of Systems Medicine, Parkinson’s Disease Center, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Elena Garasto
- Department of Systems Medicine, Parkinson’s Disease Center, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Mariangela Pierantozzi
- Department of Systems Medicine, Parkinson’s Disease Center, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
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25
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Wertman JN, Melong N, Stoyek MR, Piccolo O, Langley S, Orr B, Steele SL, Razaghi B, Berman JN. The identification of dual protective agents against cisplatin-induced oto- and nephrotoxicity using the zebrafish model. eLife 2020; 9:e56235. [PMID: 32720645 PMCID: PMC7470826 DOI: 10.7554/elife.56235] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 07/20/2020] [Indexed: 12/17/2022] Open
Abstract
Dose-limiting toxicities for cisplatin administration, including ototoxicity and nephrotoxicity, impact the clinical utility of this effective chemotherapy agent and lead to lifelong complications, particularly in pediatric cancer survivors. Using a two-pronged drug screen employing the zebrafish lateral line as an in vivo readout for ototoxicity and kidney cell-based nephrotoxicity assay, we screened 1280 compounds and identified 22 that were both oto- and nephroprotective. Of these, dopamine and L-mimosine, a plant-based amino acid active in the dopamine pathway, were further investigated. Dopamine and L-mimosine protected the hair cells in the zebrafish otic vesicle from cisplatin-induced damage and preserved zebrafish larval glomerular filtration. Importantly, these compounds did not abrogate the cytotoxic effects of cisplatin on human cancer cells. This study provides insights into the mechanisms underlying cisplatin-induced oto- and nephrotoxicity and compelling preclinical evidence for the potential utility of dopamine and L-mimosine in the safer administration of cisplatin.
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Affiliation(s)
- Jaime N Wertman
- Dalhousie University, Department of Microbiology and ImmunologyHalifaxCanada
- IWK Health Centre, Department of PediatricsHalifaxCanada
| | - Nicole Melong
- IWK Health Centre, Department of PediatricsHalifaxCanada
- CHEO Research InstituteOttawaCanada
| | - Matthew R Stoyek
- Dalhousie University, Department of Physiology & BiophysicsHalifaxCanada
| | - Olivia Piccolo
- IWK Health Centre, Department of PediatricsHalifaxCanada
- McMaster University, Department of Global HealthHamiltonCanada
| | | | - Benno Orr
- University of Toronto, Department of Molecular GeneticsTorontoCanada
| | | | - Babak Razaghi
- Dalhousie University, Faculty of DentistryHalifaxCanada
| | - Jason N Berman
- IWK Health Centre, Department of PediatricsHalifaxCanada
- CHEO Research InstituteOttawaCanada
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26
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Cerroni R, Pierantozzi M, Moleti A, Stefani A, Sisto R, Mercuri NB, Liguori C, Garasto E, Viziano A. Laterality of Auditory Dysfunction in Parkinson's Disease. Mov Disord 2020; 35:1283-1284. [DOI: 10.1002/mds.28131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 11/06/2022] Open
Affiliation(s)
- Rocco Cerroni
- Parkinson Centre, Department of System MedicineUniversity of Rome “Tor Vergata” Rome Italy
| | - Mariangela Pierantozzi
- Parkinson Centre, Department of System MedicineUniversity of Rome “Tor Vergata” Rome Italy
| | - Arturo Moleti
- Department of PhysicsUniversity of Rome ‘Tor Vergata’ Rome Italy
| | - Alessandro Stefani
- Parkinson Centre, Department of System MedicineUniversity of Rome “Tor Vergata” Rome Italy
| | - Renata Sisto
- INAIL Research, Department of Occupational and Environmental MedicineEpidemiology and Hygiene, Monteporzio Catone Rome Italy
| | - Nicola B. Mercuri
- Parkinson Centre, Department of System MedicineUniversity of Rome “Tor Vergata” Rome Italy
| | - Claudio Liguori
- Parkinson Centre, Department of System MedicineUniversity of Rome “Tor Vergata” Rome Italy
| | - Elena Garasto
- Parkinson Centre, Department of System MedicineUniversity of Rome “Tor Vergata” Rome Italy
| | - Andrea Viziano
- Department of PhysicsUniversity of Rome ‘Tor Vergata’ Rome Italy
- Department of Clinical Sciences and Translational MedicineUniversity of Rome “Tor Vergata” Rome Italy
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27
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De Groote E, De Keyser K, Santens P, Talsma D, Bockstael A, Botteldooren D, De Letter M. Future Perspectives on the Relevance of Auditory Markers in Prodromal Parkinson's Disease. Front Neurol 2020; 11:689. [PMID: 32765404 PMCID: PMC7378374 DOI: 10.3389/fneur.2020.00689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 06/09/2020] [Indexed: 11/13/2022] Open
Abstract
Research on auditory processing in Parkinson's disease (PD) has recently made substantial progress. At present, evidence has been found for altered auditory processing in the clinical stage of PD. The auditory alterations in PD have been demonstrated with low-cost and non-invasive assessments that are already used in routine clinical practice. Since auditory alterations have been reported early in disease progression, it would be highly relevant to investigate whether auditory markers could be provided in the prodromal stage of PD. In addition, auditory alterations in early stage PD might be modulated by dopaminergic medication. Therefore, the aim of this review is (1) to summarize the literature on auditory processing in PD with a specific focus on the early disease stages, (2) to give future perspectives on which audiological and electrophysiological measurements could be useful in the prodromal stage of PD and (3) to assess the effect of dopaminergic medication on potential auditory markers in the prodromal stage of PD.
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Affiliation(s)
- Evelien De Groote
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Kim De Keyser
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Patrick Santens
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Durk Talsma
- Department of Experimental Psychology, Ghent University, Ghent, Belgium
| | - Annelies Bockstael
- Department of Information Technology, INTEC, Acoustics Research Group, Ghent University, Ghent, Belgium
| | - Dick Botteldooren
- Department of Information Technology, INTEC, Acoustics Research Group, Ghent University, Ghent, Belgium
| | - Miet De Letter
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
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28
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Analysis of Auditory Function of Patients With Parkinson Disease Based on Mandarin. TOPICS IN GERIATRIC REHABILITATION 2020. [DOI: 10.1097/tgr.0000000000000280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Auditory and Olfactory Deficits in Essential Tremor - Review of the Current Evidence. Tremor Other Hyperkinet Mov (N Y) 2020; 10:3. [PMID: 32775017 PMCID: PMC7394198 DOI: 10.5334/tohm.57] [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] [Indexed: 11/20/2022] Open
Abstract
Background: Essential tremor (ET) is the most common adult movement disorder, characterized by several motor and increasingly well recognized non-motor symptoms. Sensory deficits, such as hearing impairment and olfactory dysfunction, are amongst them. This review analyzes the available evidence of these sensory deficits and their possible mechanistic basis in patients with ET. Method: A PubMed literature search on the topic was performed in the May 2019 database. Results: Nineteen articles on hearing impairment and olfactory dysfunction in ET patients were identified. The prevalence of hearing impairment is higher in ET patients than healthy controls or Parkinson disease. Cochlear pathologies are suggested as the underlying cause, but there is still a lack of information about retrocochlear pathologies and central auditory processing. Reports on olfactory dysfunction have conflicting results. The presence of mild olfactory dysfunction in ET was suggested. Conflicting results may be due to the lack of consideration of the disease’s heterogeneity, but according to recent data, most studies do not find prominent evidence of olfactory loss in ET. Conclusion: Although there is increasing interest in studies on non-motor symptoms in ET, there are few studies on sensory deficits, which are of particularly high prevalence. More studies are needed on to investigate the basis of non-motor symptoms, including sensory deficits.
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30
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De Groote E, De Keyser K, Bockstael A, Botteldooren D, Santens P, De Letter M. Central auditory processing in parkinsonian disorders: A systematic review. Neurosci Biobehav Rev 2020; 113:111-132. [PMID: 32145223 DOI: 10.1016/j.neubiorev.2020.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 02/23/2020] [Accepted: 03/02/2020] [Indexed: 10/24/2022]
Abstract
Altered auditory processing has been increasingly recognized as a non-motor feature in parkinsonian disorders. This systematic review provides an overview of behavioral and electrophysiological literature on central auditory processing in patients with Parkinson's disease (PD), multiple system atrophy (MSA) and progressive supranuclear palsy (PSP). A systematic database search was conducted and yielded 88 studies that met the intelligibility criteria. The collected data revealed distinct impairments in a range of central auditory processes in PD, including altered deviance detection of basic auditory features, auditory brainstem processing, auditory gating and selective auditory attention. In contrast to PD, literature on central auditory processing in atypical parkinsonian disorders was relatively scarce, but provided some evidence for impaired central auditory processing in MSA and PSP. The interpretation of these findings is discussed and suggestions for further research are offered.
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Affiliation(s)
- Evelien De Groote
- Department of Rehabilitation Sciences, Ghent University, C. Heymanslaan 10, B-9000, Ghent, Belgium.
| | - Kim De Keyser
- Department of Rehabilitation Sciences, Ghent University, C. Heymanslaan 10, B-9000, Ghent, Belgium
| | - Annelies Bockstael
- INTEC, Acoustic Research Group, Ghent University, Technologiepark Zwijnaarde 15, B-9052, Ghent, Belgium
| | - Dick Botteldooren
- INTEC, Acoustic Research Group, Ghent University, Technologiepark Zwijnaarde 15, B-9052, Ghent, Belgium
| | - Patrick Santens
- Department of Neurology, Ghent University Hospital, C. Heymanslaan 10, B-9000, Ghent, Belgium
| | - Miet De Letter
- Department of Rehabilitation Sciences, Ghent University, C. Heymanslaan 10, B-9000, Ghent, Belgium
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31
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Jafari Z, Kolb BE, Mohajerani MH. Auditory Dysfunction in Parkinson's Disease. Mov Disord 2020; 35:537-550. [PMID: 32052894 DOI: 10.1002/mds.28000] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/21/2020] [Accepted: 01/27/2020] [Indexed: 12/11/2022] Open
Abstract
PD is a progressive and complex neurological disorder with heterogeneous symptomatology. PD is characterized by classical motor features of parkinsonism and nonmotor symptoms and involves extensive regions of the nervous system, various neurotransmitters, and protein aggregates. Extensive evidence supports auditory dysfunction as an additional nonmotor feature of PD. Studies indicate a broad range of auditory impairments in PD, from the peripheral hearing system to the auditory brainstem and cortical areas. For instance, research demonstrates a higher occurrence of hearing loss in early-onset PD and evidence of abnormal auditory evoked potentials, event-related potentials, and habituation to novel stimuli. Electrophysiological data, such as auditory P3a, also is suggested as a sensitive measure of illness duration and severity. Improvement in auditory responses following dopaminergic therapies also indicates the presence of similar neurotransmitters (i.e., glutamate and dopamine) in the auditory system and basal ganglia. Nonetheless, hearing impairments in PD have received little attention in clinical practice so far. This review summarizes evidence of peripheral and central auditory impairments in PD and provides conclusions and directions for future empirical and clinical research. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Zahra Jafari
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada.,Department of Basic Sciences in Rehabilitation, School of Rehabilitation Sciences, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Bryan E Kolb
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
| | - Majid H Mohajerani
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
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32
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Scarpa A, Cassandro C, Vitale C, Ralli M, Policastro A, Barone P, Cassandro E, Pellecchia MT. A comparison of auditory and vestibular dysfunction in Parkinson's disease and Multiple System Atrophy. Parkinsonism Relat Disord 2020; 71:51-57. [PMID: 32032926 DOI: 10.1016/j.parkreldis.2020.01.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Vertigo and disequilibrium are common symptoms in idiopathic Parkinson's disease (PD) and in Multiple System Atrophy (MSA). Hearing loss has been recently recognized as an additional non-motor feature in PD. The aim of this study is to evaluate audio-vestibular function in patients affected by PD and MSA. METHODS Fifteen patients with PD, 16 patients with MSA and 20 age-matched healthy controls (HC) were enrolled. Audio-vestibular examination included pure-tone audiometry (PTA), vestibular bed-side examination, video Head Impulse Test (vHIT), and cervical Vestibular-Evoked Myogenic Potentials (cVEMPs). RESULTS PD and MSA patients showed worse PTA thresholds compared to HC at high frequencies. MSA patients showed worse PTA thresholds at 125 Hz compared to HC. In patients with PD, a direct correlation between disease duration and PTA thresholds was found at 2000 Hz and 4000 Hz. In patients with MSA, disease duration was directly related to PTA thresholds at 125 Hz and 250 Hz. Among PD patients, cVEMPs were absent bilaterally in 46.7% and unilaterally in 13.3% of the subjects. Among MSA patients, cVEMPs were absent bilaterally in 26.7% and unilaterally in 40% of the subjects; p13 latency was significantly increased in PD patients as compared to HC. A significant inverse relationship was found between disease duration and cVEMP amplitude in MSA patients. CONCLUSION We found that high-frequency hearing loss and cVEMP abnormalities are frequent features of both MSA and PD, suggesting that an audio-vestibular dysfunction may be present in these patients even in the absence of self-reported auditory or vestibular symptoms.
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Affiliation(s)
- Alfonso Scarpa
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | | | - Carmine Vitale
- Department of Motor Sciences and Wellness, University Parthenope, Naples, Italy
| | - Massimo Ralli
- Department of Sense Organs, Sapienza University Rome, Rome, Italy
| | | | - Paolo Barone
- Neuroscience Section, Department of Medicine and Surgery, University of Salerno, Italy
| | - Ettore Cassandro
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
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33
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De Keyser K, De Letter M, De Groote E, Santens P, Talsma D, Botteldooren D, Bockstael A. Systematic Audiological Assessment of Auditory Functioning in Patients With Parkinson's Disease. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2019; 62:4564-4577. [PMID: 31770043 DOI: 10.1044/2019_jslhr-h-19-0097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Purpose Alterations in primary auditory functioning have been reported in patients with Parkinson's disease (PD). Despite the current findings, the pathophysiological mechanisms underlying these alterations remain unclear, and the effect of dopaminergic medication on auditory functioning in PD has been explored insufficiently. Therefore, this study aimed to systematically investigate primary auditory functioning in patients with PD by using both subjective and objective audiological measurements. Method In this case-control study, 25 patients with PD and 25 age-, gender-, and education-matched healthy controls underwent an audiological test battery consisting of tonal audiometry, short increment sensitivity index, otoacoustic emissions (OAEs), and speech audiometry. Patients with PD were tested in the on- and off-medication states. Results Increased OAE amplitudes were found when patients with PD were tested without dopaminergic medication. In addition, speech audiometry in silence and multitalker babble noise demonstrated higher phoneme scores for patients with PD in the off-medication condition. The results showed no differences in auditory functioning between patients with PD in the on-medication condition and healthy controls. No effect of disease stage or motor score was evident. Conclusions This study provides evidence for a top-down involvement in auditory processing in PD at both central and peripheral levels. Most important, the increase in OAE amplitude in the off-medication condition in PD is hypothesized to be linked to a dysfunction of the olivocochlear efferent system, which is known to have an inhibitory effect on outer hair cell functioning. Future studies may clarify whether OAEs may facilitate an early diagnosis of PD.
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Affiliation(s)
- Kim De Keyser
- Department of Rehabilitation Sciences, Ghent University, Belgium
| | - Miet De Letter
- Department of Rehabilitation Sciences, Ghent University, Belgium
| | | | | | - Durk Talsma
- Department of Experimental Psychology, Ghent University, Belgium
| | - Dick Botteldooren
- Department of Information Technology (INTEC)-Acoustics Research Group, Ghent University, Belgium
| | - Annelies Bockstael
- Ecole d'Orthophonie et d'Audiologie, Université de Montréal, Quebec, Canada
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34
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Richardson KC, Sussman JE. Intensity Resolution in Individuals With Parkinson's Disease: Sensory and Auditory Memory Limitations. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2019; 62:3564-3581. [PMID: 31513750 DOI: 10.1044/2019_jslhr-h-18-0424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Purpose The purpose of the current study was to examine sensory and auditory memory limitations on intensity resolution in individuals with Parkinson's disease as compared to healthy older and younger adults. Method Nineteen individuals with Parkinson's disease, 10 healthy age- and hearing-matched adults, and 10 healthy young adults were studied. The listeners participated in 2 intensity discrimination tasks: a lower memory load 4IAX task (sensory limitations) and a higher memory load ABX task (auditory memory limitations). Intensity resolution was examined across groups and tasks using a bias-free measurement of signal detectability known as d' (d-prime). Listeners also participated in a loudness scaling task where they were instructed to rate the loudness level of each signal intensity along the experimental continuum using a computerized 150-mm visual analog scale. Results Intensity discrimination sensitivity (d') was significantly poorer in the 4IAX and ABX conditions for the individuals with Parkinson's disease, as compared to the older and younger controls. Furthermore, a significant age-related difference was identified for the loudness scaling condition. The younger controls rated most stimuli along the experimental continuum significantly louder as compared to the older controls and the individuals with Parkinson's disease. Conclusions The present discrimination data suggest sensory and auditory memory limitations may contribute to the intensity resolution issues associated with Parkinson's disease. Age-related differences in loudness scaling will be reviewed.
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Affiliation(s)
- Kelly C Richardson
- Department of Communication Disorders, University of Massachusetts Amherst
| | - Joan E Sussman
- Department of Communicative Disorders & Sciences, University at Buffalo, NY
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Hussein M, Koura R. Auditory and vestibular dysfunction in patients with Parkinson’s disease. THE EGYPTIAN JOURNAL OF OTOLARYNGOLOGY 2019. [DOI: 10.4103/ejo.ejo_18_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Moreau C, Pinto S. Misconceptions about speech impairment in Parkinson's disease. Mov Disord 2019; 34:1471-1475. [DOI: 10.1002/mds.27791] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/17/2019] [Accepted: 06/13/2019] [Indexed: 12/11/2022] Open
Affiliation(s)
- Caroline Moreau
- Expert center for Parkinson's disease, Neurological department, CHU Lille, Inserm UMR 1171 University of Lille Lille France
| | - Serge Pinto
- Aix Marseille University, CNRS, LPL Aix‐en‐Provence France
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Shetty K, Krishnan S, Thulaseedharan JV, Mohan M, Kishore A. Asymptomatic Hearing Impairment Frequently Occurs in Early-Onset Parkinson's Disease. J Mov Disord 2019; 12:84-90. [PMID: 30944288 PMCID: PMC6547043 DOI: 10.14802/jmd.18048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 12/20/2018] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE Recent reports of hearing impairment in Parkinson's disease (PD) have suggested that auditory dysfunction could be a non-motor manifestation of PD. These reports were based on observations of elderly patients for whom presbycusis may, to some extent, have contributed to hearing dysfunction. Therefore, we aimed to explore the auditory functions in younger patients with PD. METHODS We conducted a case-control study in a relatively younger (< 55 years of age at study time) population of PD patients and healthy volunteers to test whether auditory dysfunction is a significant non-motor dysfunction in PD. Pure tone audiometry (PTA) and brainstem evoked response audiometry (BERA) were performed in all participants. RESULTS None of the patients or controls reported hearing deficits. Fifty-one patients with PD and 50 healthy volunteers who were age- and gender-matched to the patients participated. PTA-detected hearing impairment was found in 64.7% of patients and 28% of controls (p < 0.001) for both low-mid and/or high frequencies. Hearing impairment was more frequent in the younger subgroups of patients than age-matched controls, while the frequency of hearing impairment was similar in older groups of subjects. BERA was not different between patients and controls. CONCLUSION Asymptomatic auditory dysfunction is a common non-motor manifestation of early-onset PD and more frequent in younger patients, indicating that it may be independent of aging. The mechanism underlying this dysfunction appears to be peripheral, although a central dysfunction cannot be ruled out based on the findings of this study.
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Affiliation(s)
- Kuldeep Shetty
- Comprehensive Care Centre for Movement Disorders, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Syam Krishnan
- Comprehensive Care Centre for Movement Disorders, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Jissa Vinoda Thulaseedharan
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Manju Mohan
- Department of Audiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Asha Kishore
- Comprehensive Care Centre for Movement Disorders, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
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Lopes MDS, Melo ADS, Corona AP, Nóbrega AC. Efeito da levodopa na mecânica coclear e no sistema auditivo eferente de indivíduos com doença de Parkinson. Codas 2019; 31:e20170249. [DOI: 10.1590/2317-1782/20182018249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 05/14/2018] [Indexed: 11/22/2022] Open
Abstract
RESUMO Objetivo Analisar o efeito da levodopa na dinâmica coclear, bem como na via eferente olivococlear medial de indivíduos com doença de Parkinson idiopática (DP). Método Indivíduos com e sem DP, acompanhados em um hospital universitário, realizaram a pesquisa das emissões otoacústicas por produto de distorção (EOAPD) e do efeito inibitório das EOAPD (EIEOA) na presença de ruído contralateral. Foram estabelecidas as medidas de correlação entre os resultados das EOAPD e do EIEOA com estágio Hoehn&Yahr (H&Y), dose diária de levodopa e tempo de diagnóstico da DP. Além disso, as medidas eletroacústicas foram comparadas entre os indivíduos sem DP e com DP, estratificados de acordo com a dose de levodopa administrada diariamente. Resultados Foi identificada correlação fraca e negativa entre a amplitude das EOAPD com a dose diária de levodopa e correlações positivas, de força moderada e fraca, entre o EIEOA com a dose diária de levodopa e o tempo de diagnóstico da DP, respectivamente. A amplitude das EOAPD foi maior nos indivíduos com DP em uso de levodopa ≤ 600 miligramas quando comparada à de indivíduos sem DP e com DP, em uso de dose superior. Já o EIEOA foi menor nos indivíduos em uso de doses ≤ 600 miligramas, quando comparado aos demais grupos. Conclusão Doses diárias de levodopa iguais ou inferiores a 600 mg/dia aumentam as respostas mecanotransdutoras cocleares nas frequências de 2 e 3 kHz, enquanto que a ação dos sistemas eferentes olivococleares é reduzida nesta região.
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Pisa Syndrome in Parkinson's Disease: Evidence for Bilateral Vestibulospinal Dysfunction. PARKINSONS DISEASE 2018; 2018:8673486. [PMID: 30410718 PMCID: PMC6205319 DOI: 10.1155/2018/8673486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/30/2018] [Accepted: 09/24/2018] [Indexed: 11/18/2022]
Abstract
Introduction Pisa syndrome (PS) is a postural complication of Parkinson's disease (PD). Yet, its pathophysiology remains unclear, although a multifactorial component is probable. Cervical vestibular evoked myogenic potentials (cVEMPs) explore vestibulospinal pathway, but they have not been measured yet in PD patients with PS (PDPS) to assess a potential vestibular impairment. Materials and Methods We enrolled 15 PD patients, 15 PDPS patients, and 30 healthy controls (HCs). They underwent neurological examination and were examined with Unified Parkinson's Disease Rating Scale II-III (UPDRSII-III), audiovestibular workup, and cVEMP recordings. Data were analysed with Chi-square, one-way ANOVA, multinomial regression, nonparametric, and Spearman's tests. Results cVEMPs were significantly impaired in both PD and PDPS compared with HCs. PDPS exhibited more severe cVEMP abnormalities with prevalent bilateral loss of potentials, compared with the PD group, in which a prevalent unilateral loss was instead observed. No clinical-neurophysiological correlations emerged. Conclusions Differently from HC, cVEMPs are altered in PD. Severity of cVEMPs alterations increases from PD without PS to PDPS, suggesting an involvement of vestibulospinal pathway in the pathophysiology of PS. Our results provide evidence for a significant impairment of cVEMPs in PDPS patients and encourage further studies to test validity of cVEMPs as diagnostic and prognostic biomarkers of PD progression.
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Smith KM, Caplan DN. Communication impairment in Parkinson's disease: Impact of motor and cognitive symptoms on speech and language. BRAIN AND LANGUAGE 2018; 185:38-46. [PMID: 30092448 DOI: 10.1016/j.bandl.2018.08.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 07/21/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Communication impairment is common in Parkinson's disease (PD) and may have both motor speech control and cognitive-linguistic underpinnings. The neurobiology of communication impairment in PD is poorly understood, and work is needed to disentangle the relative contributions of motor and cognitive dysfunction. In clinical practice, cognitive-linguistic impairments are often overlooked despite the large body of research on this topic in neurocognitive and linguistics literature. In this review, we will discuss the roles of motor speech changes, cognitive and linguistic impairment, and other related functions in the communication disabilities of individuals with PD. We will describe the various types of communication difficulties in PD and tools for measuring these symptoms. We will discuss specific deficits that may further understanding of the neurobiology of communication impairment in PD, including voice and speech acoustic changes, linguistic processing and production difficulties, and pausing. We will emphasize the importance of an interdisciplinary approach and the patient perspective on daily communication in guiding future research.
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Affiliation(s)
- Kara M Smith
- University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA.
| | - David N Caplan
- Massachusetts General Hospital, 175 Cambridge Street, Boston, MA 02114, USA.
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Alvarado JC, Fuentes-Santamaría V, Gabaldón-Ull MC, Juiz JM. An Oral Combination of Vitamins A, C, E, and Mg ++ Improves Auditory Thresholds in Age-Related Hearing Loss. Front Neurosci 2018; 12:527. [PMID: 30108480 PMCID: PMC6079267 DOI: 10.3389/fnins.2018.00527] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/13/2018] [Indexed: 12/02/2022] Open
Abstract
The increasing rate of age-related hearing loss (ARHL), with its subsequent reduction in quality of life and increase in health care costs, requires new therapeutic strategies to reduce and delay its impact. The goal of this study was to determine if ARHL could be reduced in a rat model by administering a combination of antioxidant vitamins A, C, and E acting as free radical scavengers along with Mg++, a known powerful cochlear vasodilator (ACEMg). Toward this goal, young adult, 3 month-old Wistar rats were divided into two groups: one was fed with a diet composed of regular chow (“normal diet,” ND); the other received a diet based on chow enriched in ACEMg (“enhanced diet,” ED). The ED feeding began 10 days before the noise stimulation. Auditory brainstem recordings (ABR) were performed at 0.5, 1, 2, 4, 8, 16, and 32 kHz at 3, 6–8, and 12–14 months of age. No differences were observed at 3 months of age, in both ND and ED animals. At 6–8 and 12–14 months of age there were significant increases in auditory thresholds and a reduction in the wave amplitudes at all frequencies tested, compatible with progressive development of ARHL. However, at 6–8 months threshold shifts in ED rats were significantly lower in low and medium frequencies, and wave amplitudes were significantly larger at all frequencies when compared to ND rats. In the oldest animals, differences in the threshold shift persisted, as well as in the amplitude of the wave II, suggesting a protective effect of ACEMg on auditory function during aging. These findings indicate that oral ACEMg may provide an effective adjuvant therapeutic intervention for the treatment of ARHL, delaying the progression of hearing impairment associated with age.
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Affiliation(s)
- Juan C Alvarado
- Instituto de Investigación en Discapacidades Neurológicas, Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Verónica Fuentes-Santamaría
- Instituto de Investigación en Discapacidades Neurológicas, Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - María C Gabaldón-Ull
- Instituto de Investigación en Discapacidades Neurológicas, Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - José M Juiz
- Instituto de Investigación en Discapacidades Neurológicas, Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
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Handforth A, Parker GA. Conditions Associated with Essential Tremor in Veterans: A Potential Role for Chronic Stress. TREMOR AND OTHER HYPERKINETIC MOVEMENTS (NEW YORK, N.Y.) 2018; 8:517. [PMID: 29971194 PMCID: PMC6026277 DOI: 10.7916/d8vd8ff5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 04/06/2018] [Indexed: 02/06/2023]
Abstract
Background Increased depression, hearing loss, dementia, alcoholism, and mortality in essential tremor patients remain unexplained. We investigated whether conditions associated with tremor are linked to chronic stress. Methods The FY2013 Veterans Affairs database was queried for 38 selected dual diagnosis combinations in 5,854,223 veterans aged 21–95 years. Results Post-traumatic stress disorder, anxiety, and depression were the most common psychiatric diagnoses in tremor patients, with the odds ratio exceeding 2 in all 15-year cohorts. Depending on age, patients with essential tremor were more likely than those without to have obsessive–compulsive disorder, bipolar illness, schizophrenia, use tobacco and abuse alcohol, have hypertension, obesity, hyperlipidemia, diabetes, vitamin D deficiency, coronary and cerebrovascular diseases, congestive heart failure, stroke, asthma, hypothyroidism, irritable bowel syndrome, renal insufficiency, alcoholic liver disease, hearing loss, glaucoma, macular degeneration, migraine, epilepsy, idiopathic polyneuropathy, history of head trauma, and ‘Alzheimer’s dementia. In contrast, lung and colorectal cancer, amyotrophic lateral sclerosis, psychostimulant abuse, and rheumatoid arthritis were not more common. Discussion Post-traumatic stress disorder, anxiety, and depression, strongly associated with essential tremor, are known risk factors for poor health habits, tobacco use and alcohol abuse; collectively these are risk factors for vascular disease, with further negative health consequences for multiple organ systems. As essential tremor is associated with all these conditions, we propose that chronic stress is not only responsible for the conditions associated with tremor but in some cases itself directly and indirectly induces essential tremor, so that tremor and poor health share a common cause.
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Affiliation(s)
- Adrian Handforth
- Neurology Service, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Gail A Parker
- Knowledge Management, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA
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Rabelo MB, Lopes MDS, Corona AP, Araújo RPCD, Nóbrega AC. Hearing handicap perception and hearing alterations in individuals with Parkinson's disease. REVISTA CEFAC 2018. [DOI: 10.1590/1982-0216201820213117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Purpose: to investigate the relationship between the perception of self-reported hearing impairment and the handicap with peripheral and central hearing alterations, in individuals with Parkinson's disease. Methods: individuals with Parkinson's disease were seen and evaluated at a reference outpatient clinic for the treatment of movement disorders, between April and August 2015. All of them underwent basic audiological evaluation and hearing processing tests. The hearing handicap assessment was performed using the Hearing Handicap Inventory for the Elderly. As for the analysis of the relationship between hearing handicap perception and audiological, clinical and demographic variables, individuals were considered with or without perception, according to their score. Results: thirty-three individuals, mostly males, with a mean age of 63.7 years, took part in the study. There was a high frequency (n = 31) of peripheral or central hearing alterations in the study population. However, only 14 reported some difficulty in hearing, eight not presenting hearing handicap perception, two having mild-moderate perception and four showing a significant perception. Conclusion: the perceptions of hearing difficulties and the handicap are not related to audiological alterations in individuals presented with Parkinson's disease.
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Pawlitzki E, Schlenstedt C, Schmidt N, Rotkirch I, Gövert F, Hartwigsen G, Witt K. Spatial orientation and postural control in patients with Parkinson's disease. Gait Posture 2018; 60:50-54. [PMID: 29153480 DOI: 10.1016/j.gaitpost.2017.11.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/31/2017] [Accepted: 11/11/2017] [Indexed: 02/02/2023]
Abstract
Postural instability is one of the most disabling and risky symptoms of advanced Parkinson's disease (PD). The purpose of this study was to investigate whether and how this is mediated by a centrally impaired spatial orientation. Therefore, we performed a spatial orientation study in 21 PD patients (mean age 68years, SD 8.5 years, 9 women) in a medically on condition and 21 healthy controls (mean age 68.9years, SD 5.5years, 14 women). We compared their spatial responses to the horizontal axis (Sakashita's visual target cancellation task), the vertical axis (bucket-test), the sagittal axis (tilt table test) and postural stability using the Fullerton Advanced Balance Scale (FAB). We found larger deviations on the vertical axis in PD patients, although the direct comparisons of performance in PD patients and healthy controls did not reveal significant differences. While the total scores of the FAB Scale were significantly worse in PD (25.9 points, SD 7.2 points) compared to controls (35.1 points, SD 2.3 points, p<0.01), the results from the spatialorientation task did not correlate with the FAB Scale. In summary, our results argue against a relation between perceptional deficits of spatial information and postural control in PD. These results are in favor of a deficit in higher order integration of spatial stimuli in PD that might influence balance control.
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Affiliation(s)
- E Pawlitzki
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany.
| | - C Schlenstedt
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - N Schmidt
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - I Rotkirch
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - F Gövert
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - G Hartwigsen
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences Leipzig, Stephanstraße 1a, 04103 Leipzig, Germany
| | - K Witt
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany; Department of Neurology, School of Medicine and Health Sciences - European Medical School, University Oldenburg, Steinweg 13-17, 26122 Oldenburg, Germany
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Multifaceted Communication Problems in Everyday Conversations Involving People with Parkinson's Disease. Brain Sci 2017; 7:brainsci7100123. [PMID: 28946714 PMCID: PMC5664050 DOI: 10.3390/brainsci7100123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/18/2017] [Accepted: 09/22/2017] [Indexed: 11/16/2022] Open
Abstract
It is known that Parkinson's disease is often accompanied by a motor speech disorder, which results in impaired communication. However, people with Parkinson's disease may also have impaired word retrieval (anomia) and other communicative problems, which have a negative impact on their ability to participate in conversations with family as well as healthcare staff. The aim of the present study was to explore effects of impaired speech and language on communication and how this is managed by people with Parkinson's disease and their spouses. Using a qualitative method based on Conversation Analysis, in-depth analyses were performed on natural conversational interaction in five dyads including elderly men who were at different stages of Parkinson's disease. The findings showed that the motor speech disorder in combination with word retrieval difficulties and adaptations, such as using communication strategies, may result in atypical utterances that are difficult for communication partners to understand. The coexistence of several communication problems compounds the difficulties faced in conversations and individuals with Parkinson's disease are often dependent on cooperation with their communication partner to make themselves understood.
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Frenzilli G, Ryskalin L, Ferrucci M, Cantafora E, Chelazzi S, Giorgi FS, Lenzi P, Scarcelli V, Frati A, Biagioni F, Gambardella S, Falleni A, Fornai F. Loud Noise Exposure Produces DNA, Neurotransmitter and Morphological Damage within Specific Brain Areas. Front Neuroanat 2017; 11:49. [PMID: 28694773 PMCID: PMC5483448 DOI: 10.3389/fnana.2017.00049] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 06/06/2017] [Indexed: 12/11/2022] Open
Abstract
Exposure to loud noise is a major environmental threat to public health. Loud noise exposure, apart from affecting the inner ear, is deleterious for cardiovascular, endocrine and nervous systems and it is associated with neuropsychiatric disorders. In this study we investigated DNA, neurotransmitters and immune-histochemical alterations induced by exposure to loud noise in three major brain areas (cerebellum, hippocampus, striatum) of Wistar rats. Rats were exposed to loud noise (100 dBA) for 12 h. The effects of noise on DNA integrity in all three brain areas were evaluated by using Comet assay. In parallel studies, brain monoamine levels and morphology of nigrostriatal pathways, hippocampus and cerebellum were analyzed at different time intervals (24 h and 7 days) after noise exposure. Loud noise produced a sudden increase in DNA damage in all the brain areas under investigation. Monoamine levels detected at 7 days following exposure were differently affected depending on the specific brain area. Namely, striatal but not hippocampal dopamine (DA) significantly decreased, whereas hippocampal and cerebellar noradrenaline (NA) was significantly reduced. This is in line with pathological findings within striatum and hippocampus consisting of a decrease in striatal tyrosine hydroxylase (TH) combined with increased Bax and glial fibrillary acidic protein (GFAP). Loud noise exposure lasting 12 h causes immediate DNA, and long-lasting neurotransmitter and immune-histochemical alterations within specific brain areas of the rat. These alterations may suggest an anatomical and functional link to explain the neurobiology of diseases which prevail in human subjects exposed to environmental noise.
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Affiliation(s)
- Giada Frenzilli
- Department of Clinical and Experimental Medicine, University of PisaPisa, Italy
| | - Larisa Ryskalin
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisa, Italy
| | - Michela Ferrucci
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisa, Italy
| | - Emanuela Cantafora
- Department of Clinical and Experimental Medicine, University of PisaPisa, Italy
| | - Silvia Chelazzi
- Department of Clinical and Experimental Medicine, University of PisaPisa, Italy
| | - Filippo S Giorgi
- Department of Clinical and Experimental Medicine, University of PisaPisa, Italy
| | - Paola Lenzi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisa, Italy
| | - Vittoria Scarcelli
- Department of Clinical and Experimental Medicine, University of PisaPisa, Italy
| | - Alessandro Frati
- Istituto di Ricovero e Cura a Carattere Scientifico IRCCS NeuromedIsernia, Italy
| | - Francesca Biagioni
- Istituto di Ricovero e Cura a Carattere Scientifico IRCCS NeuromedIsernia, Italy
| | - Stefano Gambardella
- Istituto di Ricovero e Cura a Carattere Scientifico IRCCS NeuromedIsernia, Italy
| | - Alessandra Falleni
- Department of Clinical and Experimental Medicine, University of PisaPisa, Italy
| | - Francesco Fornai
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisa, Italy.,Istituto di Ricovero e Cura a Carattere Scientifico IRCCS NeuromedIsernia, Italy
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Auditory Processing Abilities of Parkinson's Disease Patients. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2618587. [PMID: 28546963 PMCID: PMC5435898 DOI: 10.1155/2017/2618587] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/03/2017] [Accepted: 04/16/2017] [Indexed: 11/18/2022]
Abstract
Since Parkinson's Disease (PD) primarily affects older people, a majority of PD patients have age-related hearing loss (HL) that will worsen over time. The goal of this study was to assess peripheral and central auditory functions in a population of PD patients and compare the results with a group of age-matched control subjects. Study participants included 35 adults with PD (mean age = 66.9 ± 11.2 years) and a group of 35 healthy control subjects (mean age = 65.4 ± 12.3 years). Assessments included questionnaires, neuropsychological tests, audiometric testing, and a battery of central auditory processing tests. Both study groups exhibited patterns of sensorineural hearing loss (slightly worse in the PD group) which were typical for their age and would contribute to difficulties in communication for many participants. Compared to the control group, PD patients reported greater difficulty in hearing words people are speaking. Although 27 PD patients (77%) were good candidates for amplification, only 7 (26%) of these hearing aid candidates used the devices. Because it is important for PD patients to optimize communication with their family members, caregivers, friends, and clinicians, it is vital to identify and remediate auditory dysfunction in this population as early as possible.
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Liu C, Zhang Y, Tang W, Wang B, Wang B, He S. Evoked potential changes in patients with Parkinson's disease. Brain Behav 2017; 7:e00703. [PMID: 28523237 PMCID: PMC5434200 DOI: 10.1002/brb3.703] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/06/2017] [Accepted: 03/03/2017] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVE Patients with Parkinson's disease (PD) may have sensory dysfunction, and it can be more easily demonstrated through electrophysiologic testing. We aimed to explore whether the impairment of brainstem visual and auditory passageway exists in PD patients using visual evoked potential (VEP) and brainstem auditory evoked potential (BAEP) examinations. METHODS Forty-two PD cases and thirty controls participated in the study. All subjects underwent the VEP and BAEP examinations. The N75, P100, N145 latencies and P100 amplitude of VEP, the latencies of waves I, III, V and the interpeak latencies (IPL) of waves I-III, III-V, I-V were measured. RESULTS The N75, P100, N145 latencies of VEP, but not the amplitude of P100, were significantly longer in patients with PD than the control group (p < .05). The latencies of wave III and wave V, the IPL of III-V and I-V were all significantly increased compared with control subjects while no significant difference was noted in waves I and I-III IPL. CONCLUSION Our results found that brainstem visual and auditory passageway may be impaired in PD patients. SIGNIFICANCE VEP and BAEP can be served as sensitive measurements in helping prognosis and assessment the severity of the disease.
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Affiliation(s)
- Chunyan Liu
- Department of Neurology Zhoushan Hospital Wenzhou Medical University Zhoushan China
| | - Yaping Zhang
- Department of Neurology Zhoushan Hospital Wenzhou Medical University Zhoushan China
| | - Weiguo Tang
- Department of Neurology Zhoushan Hospital Wenzhou Medical University Zhoushan China
| | - Binda Wang
- Department of Neurology Zhoushan Hospital Wenzhou Medical University Zhoushan China
| | - Bona Wang
- Department of Neurology Zhoushan Hospital Wenzhou Medical University Zhoushan China
| | - Songbin He
- Department of Neurology Zhoushan Hospital Wenzhou Medical University Zhoushan China
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Shalash AS, Hassan DM, Elrassas HH, Salama MM, Méndez-Hernández E, Salas-Pacheco JM, Arias-Carrión O. Auditory- and Vestibular-Evoked Potentials Correlate with Motor and Non-Motor Features of Parkinson's Disease. Front Neurol 2017; 8:55. [PMID: 28289399 PMCID: PMC5326766 DOI: 10.3389/fneur.2017.00055] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/07/2017] [Indexed: 11/13/2022] Open
Abstract
Degeneration of several brainstem nuclei has been long related to motor and non-motor symptoms (NMSs) of Parkinson's disease (PD). Nevertheless, due to technical issues, there are only a few studies that correlate that association. Brainstem auditory-evoked potential (BAEP) and vestibular-evoked myogenic potential (VEMP) responses represent a valuable tool for brainstem assessment. Here, we investigated the abnormalities of BAEPs, ocular VEMPs (oVEMPs), and cervical VEMPs (cVEMPs) in patients with PD and its correlation to the motor and NMSs. Fifteen patients diagnosed as idiopathic PD were evaluated by Unified Parkinson's Disease Rating Scale and its subscores, Hoehn and Yahr scale, Schwab and England scale, and Non-Motor Symptoms Scale. PD patients underwent pure-tone, speech audiometry, tympanometry, BAEP, oVEMPs, and cVEMPs, and compared to 15 age-matched control subjects. PD subjects showed abnormal BAEP wave morphology, prolonged absolute latencies of wave V and I-V interpeak latencies. Absent responses were the marked abnormality seen in oVEMP. Prolonged latencies with reduced amplitudes were seen in cVEMP responses. Rigidity and bradykinesia were correlated to the BAEP and cVEMP responses contralateral to the clinically more affected side. Contralateral and ipsilateral cVEMPs were significantly correlated to sleep (p = 0.03 and 0.001), perception (p = 0.03), memory/cognition (p = 0.025), and urinary scores (p = 0.03). The oVEMP responses showed significant correlations to cardiovascular (p = 0.01) and sexual dysfunctions (p = 0.013). PD is associated with BAEP and VEMP abnormalities that are correlated to the motor and some non-motor clinical characteristics. These abnormalities could be considered as potential electrophysiological biomarkers for brainstem dysfunction and its associated motor and non-motor features.
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Affiliation(s)
| | - Dalia Mohamed Hassan
- Audiology Unit, Department of Otorhinolaryngology, Ain Shams University , Cairo , Egypt
| | | | | | - Edna Méndez-Hernández
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango , Durango , Mexico
| | - José M Salas-Pacheco
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango , Durango , Mexico
| | - Oscar Arias-Carrión
- Unidad de Trastornos del Movimiento y Sueño, Hospital General Dr. Manuel Gea González , Ciudad de México , Mexico
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Smit JV, Janssen MLF, Engelhard M, de Bie RMA, Schuurman PR, Contarino MF, Mosch A, Temel Y, Stokroos RJ. The impact of deep brain stimulation on tinnitus. Surg Neurol Int 2016; 7:S848-S854. [PMID: 27994936 PMCID: PMC5134112 DOI: 10.4103/2152-7806.194156] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 05/14/2016] [Indexed: 11/24/2022] Open
Abstract
Background: Tinnitus is a disorder of the nervous system that cannot be adequately treated with current therapies. The effect of neuromodulation induced by deep brain stimulation (DBS) on tinnitus has not been studied well. This study investigated the effect of DBS on tinnitus by use of a multicenter questionnaire study. Methods: Tinnitus was retrospectively assessed prior to DBS and at the current situation (with DBS). From the 685 questionnaires, 443 were returned. A control group was one-to-one matched to DBS patients who had tinnitus before DBS (n = 61). Tinnitus was assessed by the tinnitus handicap inventory (THI) and visual analog scales (VAS) of loudness and burden. Results: The THI decreased significantly during DBS compared to the situation prior to surgery (from 18.9 to 15.1, P < .001), which was only significant for DBS in the subthalamic nucleus (STN). The THI in the control group (36.9 to 35.5, P = 0.50) and other DBS targets did not change. The VAS loudness increased in the control group (5.4 to 6.0 P < .01). Conclusion: DBS might have a modulatory effect on tinnitus. Our study suggests that DBS of the STN may have a beneficial effect on tinnitus, but most likely other nuclei linked to the tinnitus circuitry might be even more effective.
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Affiliation(s)
- Jasper V Smit
- Department of Ear Nose and Throat/Head and Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Marcus L F Janssen
- Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Malou Engelhard
- Department of Ear Nose and Throat/Head and Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Rob M A de Bie
- Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands
| | - P Richard Schuurman
- Department of Neurosurgery, Academic Medical Center, Amsterdam, The Netherlands
| | - Maria F Contarino
- Department of Neurology, Haga Teaching Hospital, The Hague, The Netherlands
| | - Arne Mosch
- Department of Neurology, Haga Teaching Hospital, The Hague, The Netherlands
| | - Yasin Temel
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Robert J Stokroos
- Department of Ear Nose and Throat/Head and Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
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