1
|
Pan W, Su C, Maasch JRMA, Chen K, Henchcliffe C, Wang F. Learning Phenotypic Associations for Parkinson's Disease with Longitudinal Clinical Records. AMIA JOINT SUMMITS ON TRANSLATIONAL SCIENCE PROCEEDINGS. AMIA JOINT SUMMITS ON TRANSLATIONAL SCIENCE 2024; 2024:374-383. [PMID: 38827071 PMCID: PMC11141836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Parkinson's disease (PD) is associated with multiple clinical motor and non-motor manifestations. Understanding of PD etiologies has been informed by a growing number of genetic mutations and various fluid-based and brain imaging biomarkers. However, the mechanisms underlying its varied phenotypic features remain elusive. The present work introduces a data-driven approach for generating phenotypic association graphs for PD cohorts. Data collected by the Parkinson's Progression Markers Initiative (PPMI), the Parkinson's Disease Biomarkers Program (PDBP), and the Fox Investigation for New Discovery of Biomarkers (BioFIND) were analyzed by this approach to identify heterogeneous and longitudinal phenotypic associations that may provide insight into the pathology of this complex disease. Findings based on the phenotypic association graphs could improve understanding of longitudinal PD pathologies and how these relate to patient symptomology.
Collapse
Affiliation(s)
- Weishen Pan
- Department of Population Health Sciences, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Chang Su
- Department of Population Health Sciences, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | | | - Kun Chen
- Department of Statistics, University of Connecticut, Storrs, CT, USA
| | - Claire Henchcliffe
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Fei Wang
- Department of Population Health Sciences, Weill Cornell Medicine, Cornell University, New York, NY, USA
| |
Collapse
|
2
|
Higuchi T, Chen X, Werner RA. Navigating new horizons: Prospects of NET-targeted radiopharmaceuticals in precision medicine. Theranostics 2024; 14:3178-3192. [PMID: 38855189 PMCID: PMC11155404 DOI: 10.7150/thno.96743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 04/23/2024] [Indexed: 06/11/2024] Open
Abstract
In the evolving landscape of precision medicine, NET-targeted radiopharmaceuticals are emerging as pivotal tools for the diagnosis and treatment of a range of conditions, from heart failure and neurodegenerative disorders to neuroendocrine cancers. This review evaluates the advancements offered by 18F-labeled PET tracers and 211At alpha-particle therapy, juxtaposed with current 123I-MIBG SPECT and 131I-MIBG therapies. The enhanced spatial resolution and capability for quantitative analysis render 18F-labeled PET tracers potential candidates for improved detection and management of diseases. Alpha-particle therapy with 211At may offer increased specificity and tumoricidal efficacy, pointing towards a shift in therapeutic protocols. While preliminary data is promising, these innovative approaches require thorough validation against current modalities. Ongoing clinical trials are pivotal to confirm the expected clinical benefits and to address safety concerns. This review underscores the need for rigorous research to verify the clinical utility of NET-targeted radiopharmaceuticals, which may redefine precision medicine paradigms and significantly impact patient care.
Collapse
Affiliation(s)
- Takahiro Higuchi
- Department of Nuclear Medicine and Comprehensive Heart Failure Center, University Hospital of Würzburg, Würzburg, Germany
- Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Xinyu Chen
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Rudolf A Werner
- DZHK (German Centre for Cardiovascular Research), Partner Site Frankfurt Rhine-Main, Frankfurt, Germany
- Goethe University Frankfurt, Department of Nuclear Medicine, Clinic for Radiology and Nuclear Medicine, Frankfurt, Germany
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz and German Cancer Research Center (DKFZ), Heidelberg, Germany
- The Russell H Morgan Department of Radiology and Radiological Sciences, Division of Nuclear Medicine and Molecular Imaging, Johns Hopkins School of Medicine, Baltimore, MD, United States
| |
Collapse
|
3
|
Qin Y, Meng DT, Jin ZH, Du WJ, Fang BY. Association between autonomic dysfunction with motor and non-motor symptoms in patients with Parkinson's disease. J Neural Transm (Vienna) 2024; 131:323-334. [PMID: 38253927 DOI: 10.1007/s00702-024-02745-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
To investigate the association between autonomic dysfunction (AutD) and motor as well as non-motor symptoms (NMS) in patients with Parkinson's disease (PD). Fifty-three PD patients were divided into two groups based on the number of domains affected by AutD: a multi-domain AutD group (AutD-M) and a single-domain AutD group (AutD-S), as evaluated using the Scale for Outcomes in Parkinson's disease-Autonomic (SCOPA-AUT), which assesses autonomic symptoms, one of the NMS. A comprehensive comparison was conducted between the two groups, including clinical measures such as clinical scales, quantitative evaluations of motor function and exercise capacity. Spearman correlation analysis was employed to investigate the relationship between AutD severity and PD symptoms. Additionally, we performed multiple linear regression model analysis to determine whether associations between SCOPA-AUT scores and clinical assessments remained significant after adjusting for Hoehn and Yahr stage, sex, and age. PD patients in the AutD-M group exhibited significantly more severe NMS and motor symptoms compared to those in the AutD-S group. In correlation analysis, SCOPA-AUT scores showed significant correlations with multiple clinical symptoms, such as most of the NMS, 10-MWT and CPET parameters. Furthermore, regression analysis also revealed that more pronounced fatigue, anxiety, depressive symptoms, worse walking speed and impaired exercise capacity were associated with higher SCOPA-AUT scores. The presence of AutD is correlated with emotional disturbances, decreased exercise endurance, and impaired gait function in patients with PD. Early management of AutD may prove beneficial in alleviating some NMS and motor symptoms in PD.
Collapse
Affiliation(s)
- Yi Qin
- Parkinson Medical Center, Beijing Rehabilitation Hospital, Capital Medical University, Badachu, Xixiazhuang, Shijingshan District, Beijing, 100144, China
- Beijing Rehabilitation Medical College, Capital Medical University, Beijing, China
| | - De-Tao Meng
- Parkinson Medical Center, Beijing Rehabilitation Hospital, Capital Medical University, Badachu, Xixiazhuang, Shijingshan District, Beijing, 100144, China
| | - Zhao-Hui Jin
- Parkinson Medical Center, Beijing Rehabilitation Hospital, Capital Medical University, Badachu, Xixiazhuang, Shijingshan District, Beijing, 100144, China
| | - Wen-Jun Du
- Parkinson Medical Center, Beijing Rehabilitation Hospital, Capital Medical University, Badachu, Xixiazhuang, Shijingshan District, Beijing, 100144, China
| | - Bo-Yan Fang
- Parkinson Medical Center, Beijing Rehabilitation Hospital, Capital Medical University, Badachu, Xixiazhuang, Shijingshan District, Beijing, 100144, China.
| |
Collapse
|
4
|
Malkiewicz JJ, Siuda J. Evaluation of Cardiovascular Autonomic Nervous System in Essential Tremor and Tremor Dominant Parkinson's Disease. Brain Sci 2024; 14:313. [PMID: 38671965 PMCID: PMC11048246 DOI: 10.3390/brainsci14040313] [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: 03/08/2024] [Revised: 03/16/2024] [Accepted: 03/23/2024] [Indexed: 04/28/2024] Open
Abstract
(1) Background: The differential diagnosis of essential tremor (ET) and tremor-dominant Parkinson's disease (TDPD) can be challenging. Only a few studies have investigated the autonomic nervous system (ANS) in ET. However, some of these suggested that heart rate variability (HRV) might be useful in the differential diagnosis. (2) Methods: Demographic and clinical data, including medications and comorbidities, were collected from 15 TDPD patients, 19 ET patients, and 20 healthy controls. Assessment with the SCOPA-AUT questionnaire, 5 min HRV analysis in time and frequency domains, and evaluation of orthostatic hypotension (OH) with tilt test were performed. (3) Results: There were no significant differences between all groups on the SCOPA-AUT questionnaire. PD patients had OH more frequently and a larger drop in systolic blood pressure (SBP) during the tilt test than ET patients and controls. HRV was affected in PD, but not in ET and controls. Power in the low frequency band, the standard deviation of all normal RR intervals and SBP drop were potentially useful in differential diagnosis with AUCs of 0.83, 0.78, and 0.83, respectively. (4) Conclusions: Cardiovascular ANS dysfunction was present in TDPD, but not in ET and controls. HRV analysis and assessment of SBP drop may be potentially useful in the differential diagnosis of ET and TDPD.
Collapse
Affiliation(s)
- Jakub J. Malkiewicz
- Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, University Clinical Center Prof. K. Gibiński, 14 Medyków Street, 40-752 Katowice, Poland;
| | | |
Collapse
|
5
|
Bower AE, Crisomia SJ, Chung JW, Martello JP, Burciu RG. Free water imaging unravels unique patterns of longitudinal structural brain changes in Parkinson's disease subtypes. Front Neurol 2023; 14:1278065. [PMID: 37965163 PMCID: PMC10642764 DOI: 10.3389/fneur.2023.1278065] [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: 08/15/2023] [Accepted: 10/12/2023] [Indexed: 11/16/2023] Open
Abstract
Background Research shows that individuals with Parkinson's disease (PD) who have a postural instability and gait difficulties (PIGD) subtype have a faster disease progression compared to those with a tremor dominant (TD) subtype. Nevertheless, our understanding of the structural brain changes contributing to these clinical differences remains limited, primarily because many brain imaging techniques are only capable of detecting changes in the later stages of the disease. Objective Free water (FW) has emerged as a robust progression marker in several studies, showing increased values in the posterior substantia nigra that predict symptom worsening. Here, we examined longitudinal FW changes in TD and PIGD across multiple brain regions. Methods Participants were TD and PIGD enrolled in the Parkinson's Progression Marker Initiative (PPMI) study who underwent diffusion MRI at baseline and 2 years later. FW changes were quantified for regions of interest (ROI) within the basal ganglia, thalamus, brainstem, and cerebellum. Results Baseline FW in all ROIs did not differ between groups. Over 2 years, PIGD had a greater percentage increase in FW in the putamen, globus pallidus, and cerebellar lobule V. A logistic regression model incorporating percent change in motor scores and FW in these brain regions achieved 91.4% accuracy in discriminating TD and PIGD, surpassing models based solely on clinical measures (74.3%) or imaging (76.1%). Conclusion The results further suggest the use of FW to study disease progression in PD and provide insight into the differential course of brain changes in early-stage PD subtypes.
Collapse
Affiliation(s)
- Abigail E. Bower
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE, United States
| | - Sophia J. Crisomia
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE, United States
| | - Jae Woo Chung
- Department of Neurology, University of Minnesota, Minneapolis, MN, United States
| | - Justin P. Martello
- Department of Neurosciences, Christiana Care Health System, Newark, DE, United States
| | - Roxana G. Burciu
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE, United States
| |
Collapse
|
6
|
Ananthavarathan P, Patel B, Peeros S, Obrocki R, Malek N. Neurological update: non-motor symptoms in atypical parkinsonian syndromes. J Neurol 2023; 270:4558-4578. [PMID: 37316556 PMCID: PMC10421812 DOI: 10.1007/s00415-023-11807-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/31/2023] [Accepted: 06/04/2023] [Indexed: 06/16/2023]
Abstract
Among people with Parkinson's disease (PD), non-motor symptoms (NMS) are a well-recognised cause of significant morbidity and poor quality of life. Yet, it is only more recently that NMS have been recognised to affect the lives of patients with atypical parkinsonian syndromes in a similar fashion. The aim of this article is to highlight and compare the relative prevalence of NMS among patients with atypical parkinsonian syndromes in the published literature, which largely remain underreported and unaddressed in routine clinical practice. All NMS that are recognised to occur in PD are also found to commonly occur in atypical parkinsonian syndromes. In particular, excessive daytime sleepiness is more prevalent among atypical parkinsonian syndromes (94.3%) compared to PD (33.9%) or normal controls (10.5%) (p < 0.001). Urinary dysfunction (not limited to urinary incontinence) is not only found to occur in MSA (79.7%) and PD (79.9%), but has also been reported in nearly half of the patients with PSP (49.3%), DLB (42%) and CBD (53.8%) (p < 0.001). Apathy is significantly more common among the atypical parkinsonian syndromes [PSP (56%), MSA (48%), DLB (44%), CBD (43%)] compared to PD (35%) (p = 0.029). Early recognition and addressing of NMS among atypical parkinsonian syndromes may help improve the holistic patient care provided and may encompass a range of conservative and pharmacotherapeutic treatments to address these symptoms.
Collapse
Affiliation(s)
- Piriyankan Ananthavarathan
- Department of Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
- Department of Neuroinflammation, Institute of Neurology, University College London, 1st Floor, Russell Square House, 10-12 Russell Square, London, WC1B 5EH, UK.
| | - B Patel
- Department of Neurology, Queen's Hospital, Romford, Essex, UK
| | - S Peeros
- Department of Neurology, Queen's Hospital, Romford, Essex, UK
| | - R Obrocki
- Department of Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- Department of Neurology, Queen's Hospital, Romford, Essex, UK
| | - N Malek
- Department of Neurology, Queen's Hospital, Romford, Essex, UK
| |
Collapse
|
7
|
Tan AH, Chuah KH, Beh YY, Schee JP, Mahadeva S, Lim SY. Gastrointestinal Dysfunction in Parkinson's Disease: Neuro-Gastroenterology Perspectives on a Multifaceted Problem. J Mov Disord 2023; 16:138-151. [PMID: 37258277 DOI: 10.14802/jmd.22220] [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: 12/22/2022] [Accepted: 02/21/2023] [Indexed: 06/02/2023] Open
Abstract
Patients with Parkinson's disease (PD) face a multitude of gastrointestinal (GI) symptoms, including nausea, bloating, reduced bowel movements, and difficulties with defecation. These symptoms are common and may accumulate during the course of PD but are often under-recognized and challenging to manage. Objective testing can be burdensome to patients and does not correlate well with symptoms. Effective treatment options are limited. Evidence is often based on studies in the general population, and specific evidence in PD is scarce. Upper GI dysfunction may also interfere with the pharmacological treatment of PD motor symptoms, which poses significant management challenges. Several new less invasive assessment tools and novel treatment options have emerged in recent years. The current review provides an overview and a practical approach to recognizing and diagnosing common upper and lower GI problems in PD, e.g., dyspepsia, gastroparesis, small bowel dysfunction, chronic constipation, and defecatory dysfunction. Management aspects are discussed based on the latest evidence from the PD and general populations, with insights for future research pertaining to GI dysfunction in PD.
Collapse
Affiliation(s)
- Ai Huey Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kee Huat Chuah
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yuan Ye Beh
- Department of Medicine, Hospital Pulau Pinang, Penang, Malaysia
| | - Jie Ping Schee
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sanjiv Mahadeva
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Shen-Yang Lim
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
8
|
Haktanır D, Yılmaz S. Sexual Dysfunction and Related Factors in Patients With Parkinson's Disease. J Psychosoc Nurs Ment Health Serv 2023; 61:45-55. [PMID: 36099483 DOI: 10.3928/02793695-20220907-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The current cross-sectional study investigated sexual dysfunction and related factors in patients with Parkinson's disease (PD). The sample comprised 76 patients with PD in the neurology clinic of a training and research hospital. Data were collected using the Hospital Anxiety and Depression Scale and Arizona Sexual Experiences Scale. Approximately nine (88.2%) in 10 participants had sexual dysfunction. Sexual dysfunction depended on sex, educational background, employment status, side effects, body image, difficulty falling asleep, self-care, and walking dependence. Sexual dysfunction was positively correlated with age and symptoms of depression and anxiety. Sexual dysfunction was more prevalent in females than males. Advanced age and high risk of depression resulted in increased prevalence of sexual dysfunction. Health care professionals should evaluate the causes of sexual dysfunction and plan and implement appropriate interventions for patients with PD. [Journal of Psychosocial Nursing and Mental Health Services, 61(3), 45-55.].
Collapse
|
9
|
Lee SM, Lee M, Lee EJ, Kim RO, Kim Y, Kwon KY. Association Between Gait and Dysautonomia in Patients With De Novo Parkinson's Disease: Forward Gait Versus Backward Gait. J Mov Disord 2023; 16:59-67. [PMID: 36065616 PMCID: PMC9978258 DOI: 10.14802/jmd.22045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE Studies on gait and autonomic dysfunction have been insufficient so far, particularly de novo Parkinson's disease (PD). The aim of this study was to identify the association between gait dynamics and autonomic dysfunction in patients with de novo PD. METHODS A total 38 patients with de novo PD were retrospectively included in this study. Details of patients' dysautonomia were assessed using the Scales for Outcomes in Parkinson's Disease-Autonomic Dysfunction (SCOPA-AUT). For assessment of gait, a computerized gait analysis was performed using the GAITRite system for forward gait and backward gait. High SCOPA-AUT score (PD-HSAS) group and low SCOPA-AUT score (PD-LSAS) group were identified according to their SCOPA-AUT scores. RESULTS Nineteen (50%) patients with high SCOPA-AUT scores above median value (12.5) were assigned into the PD-HSAS group and others were assigned to the PD-LSAS group. Compared with the PD-LSAS group, the PD-HSAS group exhibited slower gait, shorter stride, decreased cadence, increased double support phase, decreased swing phase, and increased variability in swing time. Total SCOPA-AUT score showed significantly positive correlations with gait variability and instability but a negative correlation with gait hypokinesia. In subdomain analysis, urinary dysautonomia was highly associated with impairment of gait dynamics. All significant results were found to be more remarkable in backward gait than in forward gait. CONCLUSION Our findings suggest that alteration in gait dynamics, especially backward gait, is highly associated with autonomic dysfunction in patients with de novo PD.
Collapse
Affiliation(s)
- Seon-Min Lee
- Department of Neurology, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Mina Lee
- Department of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, Seoul, Korea
| | - Eun Ji Lee
- Department of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, Seoul, Korea
| | - Rae On Kim
- Department of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, Seoul, Korea
| | - Yongduk Kim
- Department of Neurology, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Kyum-Yil Kwon
- Department of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, Seoul, Korea,Corresponding author: Kyum-Yil Kwon, MD, PhD Department of Neurology, Soonchunhyang University Seoul Hospital, 59 Daesagwan-ro, Yongsan-gu, Seoul 04401, Korea / Tel: +82-2-709-9026 / Fax: +82-2-709-9226 / E-mail:
| |
Collapse
|
10
|
Impact of Gastrointestinal Symptoms on Health-Related Quality of Life in an Australian Parkinson’s Disease Cohort. PARKINSON'S DISEASE 2022; 2022:4053665. [DOI: 10.1155/2022/4053665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022]
Abstract
Background. Gastrointestinal symptoms (GIS) in people with Parkinson’s disease (PwP) are often underreported and may remain untreated. Constipation is a common nonmotor symptom that can adversely affect health-related quality of life (QoL); however, the impact of other GIS has not been adequately investigated. Objectives. To investigate the relationship between QoL and constipation using the Bristol Stool Chart, bowel movement frequency, and a perceived constipation measure; and to explore the relationship between QoL and other GIS in an Australian PD cohort. Methods. The impact of constipation and other GIS on QoL, as measured using the PDQ-39 scale, was assessed in a cohort of 144 (89 males, 55 females) clinic-attending PwP. Constipation was assessed using the Bristol Stool Chart as well as a composite constipation measure, and the Gastrointestinal Symptom Rating Scale (GSRS) was used to rate other GIS. Covariate corrected linear regression models were utilised to determine significant associations between GIS and QoL scores. Results. Individual and combined constipation measures were significantly associated with poorer QoL (
and
, respectively). Analysis of GSRS symptom domains showed that in addition to symptoms of gastrointestinal hypomotility, a number of other symptoms such as increased eructation and increased flatus were also associated with poorer QoL. Conclusions. The findings point to the importance of GIS as contributor to health-related QoL in PwP. A better understanding of the relationship between GIS and QoL will help facilitate the development of more effective screening and treatment programs to improve symptom management and QoL for PwP.
Collapse
|
11
|
Gong S, Gao Y, Liu J, Li J, Tang X, Ran Q, Tang R, Liao C. The prevalence and associated factors of dysphagia in Parkinson's disease: A systematic review and meta-analysis. Front Neurol 2022; 13:1000527. [PMID: 36277913 PMCID: PMC9582284 DOI: 10.3389/fneur.2022.1000527] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background The prevalence and associated factors of dysphagia in Parkinson's disease (PD) are different in studies conducted in different countries. The purpose of our systematic review and meta-analysis was to evaluate the prevalence of dysphagia in PD and to clarify its associated factors. Methods Two researchers systematically searched PubMed, Embase, Web of Science, Cochrane Library, CNKI, Wanfang Database, SinoMed and VIP databases and manually searched references in the retrieved articles to identify potential research subjects. The last search was conducted on June 28, 2022. Finally, a total of 58 studies including 60 observations with 20,530 PD patients were included in our meta-analysis. Results The meta-analysis estimated that the pooled prevalence rate of dysphagia in PD was 36.9% (95% CI: 30.7–43.6%) and instrumental examination showed a higher prevalence (57.3%, 95% CI: 44.3–69.1%). Oceania showed the highest prevalence of dysphagia in PD (56.3%) compared to Africa (39.5%), Asia (38.6%), Europe (36.1%) and America (28.9%). Dysphagia in PD was associated with older age, lower body mass index, longer disease duration, higher Hoehn and Yahr stage and levodopa equivalent daily dose, PIGD subtype, severe motor symptoms, drooling and higher levels of depression, and lower quality of life. Conclusions In conclusion, our meta-analysis showed that dysphagia occurs in more than one-third of PD patients and was associated with several demographic characteristics and PD-related characteristics, motor symptoms, non-motor symptoms, as well as decreased quality of life. It deserves early screening, diagnosis, and treatment in clinical practice to prevent serious complications from dysphagia.
Collapse
Affiliation(s)
- Siyuan Gong
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Gao
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jihong Liu
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jia Li
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xueqin Tang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Ran
- Endocrinology Department, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Rongzhu Tang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunlian Liao
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Chunlian Liao
| |
Collapse
|
12
|
Špiljak B, Lisak M, Pašić H, Trkanjec Z, Lovrenčić Huzjan A, Bašić Kes V. SIALORRHEA AND XEROSTOMIA IN PARKINSON'S DISEASE PATIENTS. Acta Clin Croat 2022; 61:320-326. [PMID: 36818932 PMCID: PMC9934048 DOI: 10.20471/acc.2022.61.02.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
Parkinson's disease (PD) is generally considered as a primary movement disorder, but the majority of patients also suffer from non-motor oral, salivary symptoms. The most common salivary symptoms, sialorrhea and xerostomia, have a considerable negative impact on the quality of life. Although these symptoms are completely opposite ones, both significantly impair oral health of patients. Sialorrhea is defined as an increased amount of the retaining saliva. It is related to salivary overproduction, or it may be associated with impaired clearance of saliva. Opposed to sialorrhea, xerostomia is subjectively defined as dryness of mouth and it is related to insufficient salivary secretion. Xerostomia promotes imbalance of oral microflora and oral pathology that often leads to malnutrition in PD patients. It is mostly related to autonomic dysfunction, or it might be considered as a side effect of dopaminergic or anticholinergic medication. In PD, different assessments are used for evaluation of sialorrhea and xerostomia, including validated scales for non-motor symptoms and standardized questionnaires on oral health. Consequently, treatment of salivary symptoms includes pharmacological and nonpharmacological approach, and surgical interventions. A multidisciplinary approach in clinical neurology and dental medicine, which includes accurate evaluation of salivary symptoms and effective treatment, indicates successful management of PD patients.
Collapse
Affiliation(s)
- Bruno Špiljak
- School of Dental Medicine, University of Zagreb, Zagreb, Croatia
| | - Marijana Lisak
- Department of Neurology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Hanna Pašić
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Zlatko Trkanjec
- School of Dental Medicine, University of Zagreb, Zagreb, Croatia;,Department of Neurology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Arijana Lovrenčić Huzjan
- School of Dental Medicine, University of Zagreb, Zagreb, Croatia;,Department of Neurology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Vanja Bašić Kes
- School of Dental Medicine, University of Zagreb, Zagreb, Croatia;,Department of Neurology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| |
Collapse
|
13
|
Longardner K, Merola A, Litvan I, De Stefano AM, Maule S, Vallelonga F, Lopiano L, Romagnolo A. Differential impact of individual autonomic domains on clinical outcomes in Parkinson's disease. J Neurol 2022; 269:5510-5520. [PMID: 35708788 PMCID: PMC9201260 DOI: 10.1007/s00415-022-11221-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 02/07/2023]
Abstract
INTRODUCTION While autonomic failure is a well-known prognostic factor for more aggressive disease progression in Parkinson's disease (PD), with a three- to sevenfold higher risk of dementia and death within 10 years after the diagnosis, the individual impact of cardiovascular, gastrointestinal, urogenital, thermoregulatory, and pupillomotor autonomic domains on PD clinical outcomes remains unclear. OBJECTIVES We sought to determine the 5-year risk of developing dementia, falls, postural instability, dysarthria, and dysphagia in PD patients with and without autonomic impairment at baseline and to assess the joint and individual association of each autonomic domain on these key functional outcomes. In addition, we aimed to determine the impact of each autonomic domain on activities of daily living (ADLs) and health-related quality of life (HRQoL). METHODS We enrolled 65 consecutive PD patients in a 5-year cohort study involving standardized evaluations of autonomic symptoms, orthostatic hypotension, and motor and non-motor features, including cognitive function. Associations were estimated as odds ratio and adjusted for PD duration, age, and baseline motor impairment. RESULTS Cardiovascular dysautonomia was associated with a sevenfold higher risk of developing dementia (95%CI: 1.154-50.436; p = 0.035) and a fivefold higher risk of falls (95%CI: 1.099-18.949; p = 0.039), as well as significantly higher impairment in ADLs (p = 0.042) and HRQoL (p = 0.031). No relevant associations were found between the other autonomic domains and these outcomes. CONCLUSIONS Cardiovascular dysautonomia, but not other domains, showed an association with worse 5-year clinical outcomes in PD. Our data suggest a specific role for cardiovascular autonomic dysregulation in the pathogenic mechanisms of PD progression.
Collapse
Affiliation(s)
- Katherine Longardner
- Department of Neurosciences, University of California San Diego, 9500 Gilman Dr. MC 0886, La Jolla, CA 92093 USA
| | - Aristide Merola
- Department of Neurology, Wexner Medical Center, Ohio State University, 395 W. 12th Ave., Columbus, OH 43210 USA
| | - Irene Litvan
- Department of Neurosciences, University of California San Diego, 9500 Gilman Dr. MC 0886, La Jolla, CA 92093 USA
| | - Alberto Maria De Stefano
- Department of Neuroscience “Rita Levi Montalcini”, University of Turin, Via Cherasco 15, 10126 Turin, Italy
- Neurology 2 Unit, A.O.U. Città Della Salute e Della Scienza di Torino, Via Cherasco 15, 10126 Turin, Italy
| | - Simona Maule
- Department of Medical Sciences, Internal Medicine Division, Autonomic Unit and Hypertension Unit, University of Turin, Turin, Italy
| | - Fabrizio Vallelonga
- Department of Medical Sciences, Internal Medicine Division, Autonomic Unit and Hypertension Unit, University of Turin, Turin, Italy
| | - Leonardo Lopiano
- Department of Neuroscience “Rita Levi Montalcini”, University of Turin, Via Cherasco 15, 10126 Turin, Italy
- Neurology 2 Unit, A.O.U. Città Della Salute e Della Scienza di Torino, Via Cherasco 15, 10126 Turin, Italy
| | - Alberto Romagnolo
- Department of Neuroscience “Rita Levi Montalcini”, University of Turin, Via Cherasco 15, 10126 Turin, Italy
- Neurology 2 Unit, A.O.U. Città Della Salute e Della Scienza di Torino, Via Cherasco 15, 10126 Turin, Italy
| |
Collapse
|
14
|
van der Lijn I, de Haan GA, Huizinga F, van der Feen FE, Rutgers AWF, Stellingwerf C, van Laar T, Heutink J. Self-Reported Visual Complaints in People with Parkinson’s Disease: A Systematic Review. JOURNAL OF PARKINSON'S DISEASE 2022; 12:785-806. [PMID: 35001897 PMCID: PMC9108577 DOI: 10.3233/jpd-202324] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background: Scientific research increasingly focuses on visual symptoms of people with Parkinson’s disease (PD). However, this mostly involves functional measures, whereas self-reported data are equally important for guiding clinical care. Objective: This review provides an overview of the nature and prevalence of self-reported visual complaints by people with PD, compared to healthy controls. Methods: A systematic literature search was performed. Studies from three databases (PubMed, PsycInfo, and Web of Science) were screened for eligibility. Only studies that reported results of visual self-reports in people with idiopathic PD were included. Results: One hundred and thirty-nine eligible articles were analyzed. Visual complaints ranged from function-related complaints (e.g., blurred vision, double vision, increased sensitivity to light or changes in contrast sensitivity) to activity-related complaints (e.g., difficulty reading, reaching, or driving). Visual complaints were more prevalent in people with PD compared to healthy controls. The presence of visual complaints leads to a reduced quality of life (QoL). Increased prevalence and severity of visual complaints in people with PD are related to longer disease duration, higher disease severity, and off-state. Conclusion: A large proportion of people with PD have visual complaints, which negatively affect QoL. Complaints are diverse in nature, and specific and active questioning by clinicians is advised to foster timely recognition, acknowledgement, and management of these complaints.
Collapse
Affiliation(s)
- Iris van der Lijn
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | - Gera A. de Haan
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | - Famke Huizinga
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Department of General Practice and Elderly Care Medicine, University Medical Center Groningen, Groningen, the Netherlands
| | - Fleur E. van der Feen
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | | | - Catherina Stellingwerf
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | - Teus van Laar
- Department of Neurology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Joost Heutink
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| |
Collapse
|
15
|
Pathophysiology and Symptomatology of Drooling in Parkinson’s Disease. Healthcare (Basel) 2022; 10:healthcare10030516. [PMID: 35326994 PMCID: PMC8951596 DOI: 10.3390/healthcare10030516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 12/29/2022] Open
Abstract
Drooling can present in patients with Parkinson’s disease (PD), and it is manifested as an excessive pooling of saliva inside the oral cavity. Currently, the exact pathophysiological mechanism of drooling in PD is not yet fully explicated. Thus, it becomes crucial to understand if some clinical characteristics may emphasize drooling or if they are just concomitant. In PD, excessive drooling has been associated with a higher burden of non-motor symptoms, such as cognitive impairment, sleep problems, autonomic dysfunction, constipation and orthostatic hypotension, and of worse severity of motor fluctuations and bradykinesia. PD patients with excessive drooling also showed a reduction of striatal DAT availability at DaTSCAN imaging. Excessive drooling in patients with Parkinson’s cannot be attributed to a single factor but to a mixture of factors, including but not limited to impaired nigrostriatal pathways.
Collapse
|
16
|
Sebastian I, Kate MP, Khatter H, Singh B, Pandian JD. Spectrum of Cardiovascular Autonomic Dysfunction and 24-hour Blood Pressure Variability in Idiopathic Parkinson's Disease. Ann Indian Acad Neurol 2022; 25:902-908. [PMID: 36561008 PMCID: PMC9764881 DOI: 10.4103/aian.aian_289_22] [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: 03/28/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 12/25/2022] Open
Abstract
Background Uncertainty prevails regarding the patterns of autonomic dysfunction in patients with idiopathic Parkinson's disease (IPD). This study was undertaken with the aim of assessing the complete spectrum of cardiovascular autonomic function tests (CAFTs) and blood pressure variability patterns in IPD patients while comparing the same with age-matched controls. Methods Patients with IPD presenting to the Christian Medical College and Hospital from December 2016 to November 2018 along with age-matched controls were prospectively evaluated using CAFTs. The IPD patients also underwent ambulatory blood pressure (BP) monitoring (ABPM), and the diurnal systolic BP differences were used to classify into dippers (10-20%), non-dippers (0-10%), reverse dippers (<0%), and extreme dippers (>20%). Results Autonomic dysfunction (AD) was prevalent in 41 (68.3%) IPD patients even in early disease (median (inter-quartile range) symptom duration 2 (1-4) years, mean Hoehn and Yahr (H&Y) stage 2 (1.5-2.8). Both sympathetic and parasympathetic parameters were impaired among IPD patients when compared to healthy controls. (E: I ratio 1.17 ± 0.12 vs 1.26 ± 0.14 (P < 0.001), Valsalva ratio (VR) 1.33 ± 0.27 vs 1.55 ± 0.25 (P < 0.001), PRT100 9.6 ± 8.0 vs 3.1 ± 1.8 (P < 0.001), tilt-up SBPAvg change 8.8 (4.2-13.8) vs 1.8 (-2.9-6.1) (P < 0.001), tilt-up HRAvg change 4.8 (2.2-8.2) vs 1.9 (-0.7-5.1) (P < 0.001). BP variability was demonstrated in 47 (79.7%) of IPD patients, with reverse dipping pattern in 28 (47.5%) seen more frequently in this cohort. Conclusions Timely detection of AD may be helpful not only in recognizing IPD in its pre-motor stages but also in optimizing management for this population of patients. BP variability and abnormal dipping patterns on ABPM can be a potential marker of dysautonomia.
Collapse
Affiliation(s)
- Ivy Sebastian
- Department of Neurology, Christian Medical College and Hospital, Ludhiana, Punjab, India
| | - Mahesh P. Kate
- Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Himani Khatter
- Department of Neurology, Christian Medical College and Hospital, Ludhiana, Punjab, India
| | - Bharat Singh
- Department of Neurology, Christian Medical College and Hospital, Ludhiana, Punjab, India
| | - Jeyaraj D. Pandian
- Department of Neurology, Christian Medical College and Hospital, Ludhiana, Punjab, India,Address for correspondence: Dr. Jeyaraj D. Pandian, Professor and Principal, Department of Neurology, Christian Medical College and Hospital, Ludhiana - 141 008, Punjab, India. E-mail:
| |
Collapse
|
17
|
Zhou Z, Zhou X, Zhou X, Xiang Y, Zhu L, Qin L, Wang Y, Pan H, Zhao Y, Sun Q, Xu Q, Wu X, Yan X, Guo J, Tang B, Liu Z. Characteristics of Autonomic Dysfunction in Parkinson's Disease: A Large Chinese Multicenter Cohort Study. Front Aging Neurosci 2021; 13:761044. [PMID: 34916924 PMCID: PMC8670376 DOI: 10.3389/fnagi.2021.761044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/25/2021] [Indexed: 01/18/2023] Open
Abstract
Autonomic dysfunction (AutD) is one of the non-motor symptoms (NMSs) in Parkinson's disease (PD). To investigate the prevalence and clinical features of AutD in Chinese patients with PD, a large multicenter cohort of 2,556 individuals with PD were consecutively involved in the Parkinson's Disease and Movement Disorders Multicenter Database and Collaborative Network in China (PD-MDCNC) between January 1, 2017, and December 31, 2019. The assessment of AutD was performed using the Scale for Outcomes in Parkinson's Disease for Autonomic Symptoms (SCOPA-AUT). The evaluation of motor symptoms and other NMSs were performed using well-established scales recommended by the Movement Disorder Society. We found that out of 2,556 patients with PD, 2,333 patients with PD (91.28%) had AutD. Compared with the group of patients with PD without AutD, the group of patients with PD with AutD had older age, older age of onset, longer disease duration, more severe motor symptoms, motor complications, and more frequent NMSs. As for partial correlation analysis, the total SCOPA-AUT score was significantly and positively associated with motor severity scales [Unified Parkinson's Disease Rating Scale (UPDRS) total score] and some of the NMSs [Rapid Eye Movement Sleep Behavior Disorder Questionnaire (RBD), Epworth Sleepiness Scale, Hamilton Depression Scale], Fatigue Severity Scale, and Parkinson's disease questionnaire. PD Sleep Scale was significantly and negatively correlated with AutD. With logistic regression analysis for potentially related factors, age, UPDRS total score, RBD, hyposmia, depression, and fatigue may be associated with PD with AutD. In conclusion, our multicenter cohort study reported the high prevalence of AutD in Chinese PD and revealed the associated factors of PD with AutD.
Collapse
Affiliation(s)
- Zhou Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoting Zhou
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoxia Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Yaqin Xiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Liping Zhu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Lixia Qin
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Yige Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Hongxu Pan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Yuwen Zhao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Qiying Sun
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qian Xu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xinyin Wu
- Department of Public Health, Xiangya School of Medicine, Central South University, Changsha, China
| | - Xinxiang Yan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jifeng Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Beisha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, China
| | - Zhenhua Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, China
| |
Collapse
|
18
|
Neurogenic orthostatic hypotension in early stage Parkinson's disease: New insights from the first 105 patients of the BoProPark study. Parkinsonism Relat Disord 2021; 93:12-18. [PMID: 34758441 DOI: 10.1016/j.parkreldis.2021.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/24/2021] [Accepted: 11/02/2021] [Indexed: 01/18/2023]
Abstract
OBJECTIVES The prevalence of neurogenic orthostatic hypotension (NOH, due to cardiovascular autonomic failure) at early stage of Parkinson's disease (PD) is unknown. The aims of this study are to prospectively evaluate in a cohort of PD patients recruited within 3 years from motor onset (1) cardiovascular autonomic functions by means of cardiovascular reflex tests (CRTs) and the occurrence of NOH; (2) the frequency of orthostatic symptoms with a validated questionnaire. METHODS We included the first 105 PD patients of the prospective "BoProPark" study. Each patient underwent CRTs (head up tilt test; Valsalva manoeuvre; deep breathing; cold face test and handgrip test) under continuous blood pressure monitoring according to standardized procedures and SCOPA-Aut questionnaire at baseline (T0) and after 16 months (T1). A group of 50 age- and sex-matched controls was used for comparison. RESULTS At T0 (mean age 61 ± 9 years, disease duration 19 ± 9 months) NOH was detected in 4/105 (3.8%) patients, whereas at T1 in 8/105 (7.6%). CRTs responses assessing sympathetic function were impaired at T0 in PD patients compared to controls and progressively worsened at T1. Only 1 patient at T0 and 3 at T1 with NOH reported orthostatic symptoms with low frequency, while the majority of patients reporting these symptoms did not have OH at testing. CONCLUSIONS Our prospective study shows that NOH is not common at early PD stage. Asymptomatic mild sympathetic impairment was observed at first evaluation and progressed with disease evolution. Secondary OH may account for the higher prevalence of OH in PD reported so far.
Collapse
|
19
|
Sharabi Y, Vatine GD, Ashkenazi A. Parkinson's disease outside the brain: targeting the autonomic nervous system. Lancet Neurol 2021; 20:868-876. [PMID: 34536407 DOI: 10.1016/s1474-4422(21)00219-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/13/2021] [Accepted: 07/02/2021] [Indexed: 01/09/2023]
Abstract
Patients with Parkinson's disease present with signs and symptoms of dysregulation of the peripheral autonomic nervous system that can even precede motor deficits. This dysregulation might reflect early pathology and therefore could be targeted for the development of prodromal or diagnostic biomarkers. Only a few objective clinical tests assess disease progression and are used to evaluate the entire spectrum of autonomic dysregulation in patients with Parkinson's disease. However, results from epidemiological studies and findings from new animal models suggest that the dysfunctional autonomic nervous system is a probable route by which Parkinson's disease pathology can spread both to and from the CNS. The autonomic innervation of the gut, heart, and skin is affected by α-synuclein pathology in the early stages of the disease and might initiate α-synuclein spread via the autonomic connectome to the CNS. The development of easy-to-use and reliable clinical tests of autonomic nervous system function seems crucial for early diagnosis, and for developing strategies to stop or prevent neurodegeneration in Parkinson's disease.
Collapse
Affiliation(s)
- Yehonatan Sharabi
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Hypertension Unit, Chaim Sheba Medical Center, Tel-HaShomer, Israel
| | - Gad D Vatine
- Department of Physiology and Cell Biology, Faculty of Health Sciences, The Regenerative Medicine and Stem Cell (RMSC) Research Center and The Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer Sheva, Israel.
| | - Avraham Ashkenazi
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| |
Collapse
|
20
|
Gene expression barcode values reveal a potential link between Parkinson's disease and gastric cancer. Aging (Albany NY) 2021; 13:6171-6181. [PMID: 33596182 PMCID: PMC7950232 DOI: 10.18632/aging.202623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022]
Abstract
Gastric cancer is a disease that develops from the lining of the stomach, whereas Parkinson’s disease is a long-term degenerative disorder of the central nervous system that mainly affects the motor system. Although these two diseases seem to be distinct from each other, increasing evidence suggests that they might be linked. To explore the linkage between these two diseases, differentially expressed genes between the diseased people and their normal controls were identified using the barcode algorithm. This algorithm transforms actual gene expression values into barcode values comprised of 1’s (expressed genes) and 0’s (silenced genes). Once the overlapped differentially expressed genes were identified, their biological relevance was investigated. Thus, using the gene expression profiles and bioinformatics methods, we demonstrate that Parkinson’s disease and gastric cancer are indeed linked. This research may serve as a pilot study, and it will stimulate more research to investigate the relationship between gastric cancer and Parkinson’s disease from the perspective of gene profiles and their functions.
Collapse
|
21
|
Nascimento D. Clinical features associated with drooling in Parkinson's disease. Neurol Sci 2021; 42:895-903. [PMID: 33443673 DOI: 10.1007/s10072-020-05005-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 12/16/2020] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Drooling is characterized by an excessive pooling of saliva in the oral cavity. The exact pathophysiological mechanism of drooling in Parkinson's disease (PD) is not yet fully understood. OBJECTIVE To identify the relationship between drooling and other clinical features in people diagnosed with PD. METHOD Research on the topic was carried out on the PubMed and ScienceDirect electronic databases. Articles published between March 2015 and March 2020 were selected. Search terms and inclusion and exclusion criteria were previously defined. The articles included met those requirements. RESULTS Sixteen articles were included for analysis. The prevalence of drooling varies between 9.26 and 70% and can occur at any stage of the disease. Higher prevalence of drooling is related to disease duration, disease severity, older age, male, levodopa equivalent dose, hypomimia, dysphagia, dysarthria, cognition, sleep, non-dominant tremor, motor fluctuations, bradykinesia, more symmetric pattern, gastrointestinal and urinary problems, sexual dysfunction, obstipation, and orthostatic hypotension. However, it is not related to hallucinations, rapid eye movement sleep behavior disorder, akinetic-rigid PD, mixed, nor dyskinesias. CONCLUSION Drooling is not caused by a single factor; it is influenced and related to several clinical features. Some clinical factors participate in the onset of drooling while others are concomitant.
Collapse
Affiliation(s)
- David Nascimento
- Hospital de Egas Moniz - Centro Hospitalar Lisboa Ocidental, Rua da Junqueira n°126, 1349-019, Lisbon, Portugal.
| |
Collapse
|
22
|
Lower Urinary Tract and Gastrointestinal Dysfunction Are Common in Early Parkinson's Disease. PARKINSONS DISEASE 2020; 2020:1694547. [PMID: 33123339 PMCID: PMC7586173 DOI: 10.1155/2020/1694547] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 01/08/2023]
Abstract
Purpose Autonomic dysfunction is a common nonmotor feature and early manifestation of Parkinsons disease (PD). Autonomic dysfunction in PD is associated with a worse prognosis. We sought to characterize autonomic dysfunction and identify associated factors in patients with early PD. Methods An observational, cross-sectional, descriptive, and analytical study was conducted to evaluate patients with early PD from the Parkinsons Progression Markers Initiative. We utilized the Scales for Outcomes in Parkinsons Disease-Autonomic dysfunction questionnaire to determine the prevalence and frequencies of autonomic symptomatology. The cohort was grouped into high and low dysautonomic scores. A regression model identified variables that independently explained dysautonomic scores in our early PD cohort. Results 414 PD patients had a mean age of 61.1 (SD 9.7) years at diagnosis and mean disease duration of 6.7 (SD 6.6) months. Among all patients, 43.7% (181/414) had high dysautonomic scores. Urinary and gastrointestinal symptoms were the most prevalent and frequently reported dysautonomic symptoms. Patients with fatigue (beta = 4.28, p < 0.001), probable rapid eye movement sleep behavior disorder (beta = 2.71, p < 0.001), excessive daytime sleepiness (beta = 1.88,p=0.039), impulsivity and compulsivity (beta = 2.42, p < 0.001), and increasing age (beta = 1.05, p < 0.001) were more likely to have high dysautonomic scores. Conclusion Lower urinary tract and gastrointestinal symptoms are prevalent and frequent in early PD patients. Fatigue, sleep disorders, impulsivity and compulsivity, and age are predictors of autonomic dysfunction. Autonomic symptoms predominated in this group of early PD patients in the disease course and were associated with more severe disease.
Collapse
|
23
|
Rascol O, Negre-Pages L, Damier P, Delval A, Derkinderen P, Destée A, Fabbri M, Meissner WG, Rachdi A, Tison F, Perez-Lloret S. Excessive buccal saliva in patients with Parkinson’s disease of the French COPARK cohort. J Neural Transm (Vienna) 2020; 127:1607-1617. [DOI: 10.1007/s00702-020-02249-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/27/2020] [Indexed: 02/02/2023]
|
24
|
Walker DT, Mills JN. Erectile Dysfunction and Neurological Comorbidities: a Contemporary Review. CURRENT SEXUAL HEALTH REPORTS 2020. [DOI: 10.1007/s11930-020-00265-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
25
|
Ahn JH, Kim M, Mun JK, Cho Y, Kim JS, Youn J, Kim JS, Cho JW. The Dysfunctional Autonomic Function and “Dysfunctional” Fatigue in Drug Naïve Parkinson’s Disease. JOURNAL OF PARKINSONS DISEASE 2020; 10:605-612. [DOI: 10.3233/jpd-201919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jong Hyeon Ahn
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| | - Minkyeong Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| | - Jun Kyu Mun
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| | - Yoonsu Cho
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| | - Ji Sun Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| | - Jinyoung Youn
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| | - Joong-Seok Kim
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin Whan Cho
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Neuroscience Center, Samsung Medical Center, Gangnam-gu, Seoul, Republic of Korea
| |
Collapse
|
26
|
Prevalence and factors related to orthostatic syndromes in recently diagnosed, drug-naïve patients with Parkinson disease. Clin Auton Res 2019; 30:265-271. [DOI: 10.1007/s10286-019-00652-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/02/2019] [Indexed: 12/15/2022]
|
27
|
Chen Z, Li G, Liu J. Autonomic dysfunction in Parkinson's disease: Implications for pathophysiology, diagnosis, and treatment. Neurobiol Dis 2019; 134:104700. [PMID: 31809788 DOI: 10.1016/j.nbd.2019.104700] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/13/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disease with a 200 year-long research history. Our understanding about its clinical phenotype and pathogenesis remains limited, although dopaminergic replacement therapy has significantly improved patient outcomes. Autonomic dysfunction is an essential category of non-motor phenotypes that has recently become a cutting edge field that directs frontier research in PD. In this review, we initially describe the epidemiology of dysautonomic symptoms in PD. Then, we perform a meticulous analysis of the pathophysiology of autonomic dysfunction in PD and propose that the peripheral autonomic nervous system may be a key route for α-synuclein pathology propagation from the periphery to the central nervous system. In addition, we recommend that constipation, orthostatic hypotension, urinary dysfunction, erectile dysfunction, and pure autonomic failure should be viewed as prodromal dysautonomic markers in PD prediction and diagnosis. Finally, we summarize the strategies currently available for the treatment of autonomic dysfunction in PD and suggest that high-quality, better-designed, randomized clinical trials should be conducted in the future.
Collapse
Affiliation(s)
- Zhichun Chen
- Department of Neurology, Institute of Neurology, Ruijin Hospital affiliated with the Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guanglu Li
- Department of Neurology, Institute of Neurology, Ruijin Hospital affiliated with the Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Liu
- Department of Neurology, Institute of Neurology, Ruijin Hospital affiliated with the Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| |
Collapse
|
28
|
Morgante F, Bavikatte G, Anwar F, Mohamed B. The burden of sialorrhoea in chronic neurological conditions: current treatment options and the role of incobotulinumtoxinA (Xeomin®). Ther Adv Neurol Disord 2019; 12:1756286419888601. [PMID: 31819763 PMCID: PMC6883364 DOI: 10.1177/1756286419888601] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/08/2019] [Indexed: 12/11/2022] Open
Abstract
Sialorrhoea is a frequent symptom of neurological diseases (e.g. Parkinson’s
disease, motor neuron disease, cerebral palsy, and stroke) and is defined as
excessive saliva accumulation leading to unintentional loss of saliva from the
mouth. Sialorrhoea increases the overall burden on the patient and their
caregivers, the impact of which can be both physical and psychosocial.
Treatments for sialorrhoea range from lifestyle and behavioural guidance, to
medications, surgery or radiation. Nonpharmacological interventions include
advice on posture, swallowing control, cough management, dietary changes, eating
and drinking techniques, and behavioural modification; however, these
conservative measures may be ineffective for people with progressive
neurological conditions. The pharmacological treatment of sialorrhoea is
challenging because medications licensed for this purpose are limited, but
treatments can include anticholinergic drugs and botulinum toxins. Surgical
treatment of sialorrhoea is typically reserved as a last resort for patients.
IncobotulinumtoxinA (Xeomin®) is the first botulinum toxin type A to receive US
and UK marketing authorization for the symptomatic treatment of chronic
sialorrhoea due to neurological disorders in adults. In this review, we discuss
and compare the frequency and method of administration, location of treatment
delivery, approximate annual costs and main side effects of botulinum toxin and
different anticholinergic drugs. Management of patients with chronic
neurological conditions requires input from multiple specialist teams and thus a
multidisciplinary team (MDT) approach is considered fundamental to ensure that
care is consistent and tailored to patients’ needs. To ensure that adult
patients with neurological conditions receive the best care and sialorrhoea is
well managed, we suggest a potential clinical care pathway for sialorrhoea with
a MDT approach, which healthcare professionals could aspire to.
Collapse
Affiliation(s)
- Francesca Morgante
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, United Kingdom; Department of Experimental and Clinical Medicine, University of Messina
| | - Ganesh Bavikatte
- Department of Rehabilitation Medicine, The Walton Centre NHS Foundation Trust, Liverpool, UK
| | - Fahim Anwar
- Department of Rehabilitation Medicine, Cambridge University Hospital NHS Foundation Trust, Addenbrooke's Hospital, Cambridge, UK
| | - Biju Mohamed
- Department of Medicine and Gerontology, University Hospital of Wales, Cardiff, UK
| |
Collapse
|
29
|
Female Sexual Dysfunction as a Warning Sign of Chronic Disease Development. CURRENT SEXUAL HEALTH REPORTS 2019. [DOI: 10.1007/s11930-019-00229-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
30
|
Gutteridge DS, Saredakis D, Badcock NA, Collins-Praino LE, Keage HAD. Cerebrovascular function during cognition in Parkinson's disease: A functional transcranial Doppler sonography study. J Neurol Sci 2019; 408:116578. [PMID: 31751909 DOI: 10.1016/j.jns.2019.116578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/21/2019] [Accepted: 11/11/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Recent evidence has linked cerebrovascular abnormalities with Parkinson's Disease (PD), which may provide a new neurophysiological understanding of cognitive impairment in PD. The current study aimed to compare cerebrovascular functioning, during a cognitive task and at rest, in those with and without PD. METHODS Idiopathic PD patients (n = 30) and age- and gender-matched healthy controls (n = 30) undertook cognitive testing and completed a word generation task while blood flow velocity was monitored bilaterally with functional transcranial Doppler sonography (fTCD) of the middle cerebral arteries. The lateralisation index and its standard deviation and timing, along with the maximum peak velocity for the left and right hemispheres and their latencies and standard deviations, were calculated for each participant. RESULTS The PD patients showed significantly more variability of the lateralisation index compared to the control group; but there were no differences in the lateralisation index itself nor in the peak velocities. In the PD group, the variability in the peak velocities showed significant positive correlations with performance on executive function tests. CONCLUSION Normal ageing has been associated with a reduction in the lateralisation index, but no alterations in the standard deviation, suggesting that cerebrovascular functional changes associated with PD differ from those of typical ageing. The within-subject variability observed in the PD group indicate abnormalities within the neurovascular coupling response. Further, the association between the within-subject variability and executive functioning in the PD group, suggests that cerebrovascular dysfunction plays an important role in cognitive impairment in PD.
Collapse
Affiliation(s)
- Daria S Gutteridge
- Cognitive Ageing and Impairment Neurosciences Laboratory, School of Psychology, Social Work and Social Policy, University of South Australia, Australia.
| | - Dimitrios Saredakis
- Cognitive Ageing and Impairment Neurosciences Laboratory, School of Psychology, Social Work and Social Policy, University of South Australia, Australia
| | - Nicholas A Badcock
- ARC Centre of Excellence in Cognition and its Disorders, Department of Cognitive Science, Macquarie University, Australia
| | - Lyndsey E Collins-Praino
- Cognition, Ageing and Neurodegenerative Disease Laboratory, Adelaide Medical School, University of Adelaide, Australia
| | - Hannah A D Keage
- Cognitive Ageing and Impairment Neurosciences Laboratory, School of Psychology, Social Work and Social Policy, University of South Australia, Australia
| |
Collapse
|
31
|
Hong CT, Chan L, Wu D, Chen WT, Chien LN. Association Between Parkinson's Disease and Atrial Fibrillation: A Population-Based Study. Front Neurol 2019; 10:22. [PMID: 30804869 PMCID: PMC6370731 DOI: 10.3389/fneur.2019.00022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 01/09/2019] [Indexed: 11/18/2022] Open
Abstract
Introduction: Autonomic nervous system (ANS) dysfunction contributes to several non-motor symptoms of Parkinson's disease (PD). In addition, ANS plays a role in the genesis and maintenance of atrial fibrillation (AF). This study investigated the temporal association between PD and AF. Methods: Data were obtained from the National Health Insurance Research Database of Taiwan. In total, 15,375 patients with newly diagnosed PD were matched with four controls each based on the propensity score. This study was bidirectional. A case-control study for the odds ratio (OR) of AF before PD and within 2 years of PD diagnosis was evaluated through conditional logistic regression. Furthermore, a cohort study on the subdistribution hazard ratio (SHR) for new-onset AF 2 years after PD diagnosis was evaluated using competing risk analysis. Results: In the case-control study, PD was found to be significantly comorbid with AF (adjusted OR: 1.15, 95% confidence interval [CI]: 1.04–1.28). Subgroup analysis demonstrated that this association consistently presented in the absence of confounding factors of AF. In the cohort study, people with PD were found to have a lower risk of AF (adjusted SHR: 0.92, 95% CI: 0.86–0.98). However, a consistent association was not observed between the confounding factors of AF and PD during the subgroup analysis. Conclusions: This study demonstrated that the premotor and early stages of PD were comorbid with AF, whereas the risk of AF was lower in the later stages. Thus, AF might be a premotor predictive biomarker and comorbidity of early PD.
Collapse
Affiliation(s)
- Chien-Tai Hong
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Lung Chan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Dean Wu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wan-Ting Chen
- Health and Clinical Data Research Center, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Li-Nien Chien
- Health and Clinical Data Research Center, College of Public Health, Taipei Medical University, Taipei, Taiwan.,School of Health Care Administration, College of Management, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|