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Zeng S, Yusufujiang A, Zhang C, Yang C, Li H. Correlation between dietary factors and Parkinson's disease revealed by the analysis of Mendelian randomization. Front Nutr 2024; 11:1273874. [PMID: 38840699 PMCID: PMC11151297 DOI: 10.3389/fnut.2024.1273874] [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: 08/08/2023] [Accepted: 05/07/2024] [Indexed: 06/07/2024] Open
Abstract
Background The intricate interplay between dietary habits and the development of Parkinson's Disease (PD) has long been a subject of scientific inquiry. Mendelian Randomization (MR) emerges as a potent tool, harnessing genetic variants to infer causality in observational data. While evidence links diet to Parkinson's Disease (PD) etiology, a thorough MR exploration of dietary impacts on PD, particularly involving gut microbiota, is still emerging. Methods This research leverages the IEU Open GWAS project's vast GWAS database to address the knowledge gap in understanding diet's influence on PD, employing a diverse range of dietary variables. Our holistic dataset includes various foods like processed fava beans, bap, red wine, to cheese, reflecting a commitment to untangling dietary complexities in PD etiology. Advancing from initial dietary-PD associations, we innovatively explore the gut microbiota, focusing on Parabacteroides goldsteinii, in relation to bap intake and PD, employing MR. Utilizing weighted median, MR-Egger, and inverse variance weighting methods, we ensure rigorous causality assessments, meticulously mitigating pleiotropy and heterogeneity biases to uphold finding validity. Results Our findings indicate red wine (OR: 1.031; 95% CI 1.001-1.062; p = 0.044) and dried fruit consumption (OR: 2.019; 95% CI 1.052-3.875; p = 0.035) correlate with increased PD risk, whereas broad beans (OR: 0.967; 95% CI 0.939-0.996; p = 0.024) and bap intake (OR: 0.922; 95% CI 0.860-0.989; p = 0.023) show protective effects against PD. Employing MR, specifically the IVW method, revealed a significant inverse association between bap intake and gut microbiota, marked by an 8.010-fold decrease in Parabacteroides goldsteinii per standard deviation increase in bap intake (95% CI 1.005-63.818, p = 0.049). Furthermore, a connection between PD and Parabacteroides goldsteinii was observed (OR: 0.810; 95% CI 0.768-0.999; p = 0.049), suggesting a potential microbiota-mediated pathway in PD etiology. Conclusion Our study links dietary habits to PD risk, showing higher PD risk with red wine and dried fruit consumption, and a protective effect from broad beans and bap. Using MR, we found bap intake inversely correlates with Parabacteroides goldsteinii in the gut, suggesting bap influences microbiota. Further, higher Parabacteroides goldsteinii levels correlate with lower PD risk, highlighting a complex interplay of diet, gut microbiome, and neurological health. These insights shed light on potential dietary interventions for PD.
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Affiliation(s)
- Shan Zeng
- Department of Graduate School, Xinjiang Medical University, Urumqi, Xinjiang, China
| | | | - Chunli Zhang
- Department of Graduate School, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Chen Yang
- Department of Graduate School, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Hongyan Li
- Department of Neurology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
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Li M, Zhang X, Chen K, Miao Y, Xu Y, Sun Y, Jiang M, Liu M, Gao Y, Xue X, Li X. Alcohol Exposure and Disease Associations: A Mendelian Randomization and Meta-Analysis on Weekly Consumption and Problematic Drinking. Nutrients 2024; 16:1517. [PMID: 38794754 PMCID: PMC11123792 DOI: 10.3390/nu16101517] [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: 03/27/2024] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Alcohol consumption significantly impacts disease burden and has been linked to various diseases in observational studies. However, comprehensive meta-analyses using Mendelian randomization (MR) to examine drinking patterns are limited. We aimed to evaluate the health risks of alcohol use by integrating findings from MR studies. A thorough search was conducted for MR studies focused on alcohol exposure. We utilized two sets of instrumental variables-alcohol consumption and problematic alcohol use-and summary statistics from the FinnGen consortium R9 release to perform de novo MR analyses. Our meta-analysis encompassed 64 published and 151 de novo MR analyses across 76 distinct primary outcomes. Results show that a genetic predisposition to alcohol consumption, independent of smoking, significantly correlates with a decreased risk of Parkinson's disease, prostate hyperplasia, and rheumatoid arthritis. It was also associated with an increased risk of chronic pancreatitis, colorectal cancer, and head and neck cancers. Additionally, a genetic predisposition to problematic alcohol use is strongly associated with increased risks of alcoholic liver disease, cirrhosis, both acute and chronic pancreatitis, and pneumonia. Evidence from our MR study supports the notion that alcohol consumption and problematic alcohol use are causally associated with a range of diseases, predominantly by increasing the risk.
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Affiliation(s)
- Mengyao Li
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Xuying Zhang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Kailei Chen
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yang Miao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yaxin Xu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yishuo Sun
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Mengxian Jiang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Mengcao Liu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yan Gao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
| | - Xiaoxia Xue
- Science Experiment Center, China Medical University, Shenyang 110122, China;
| | - Xuelian Li
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang 110122, China; (M.L.); (X.Z.); (K.C.); (Y.M.); (Y.X.); (Y.S.); (M.J.); (M.L.); (Y.G.)
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, China
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Alam MJ, Rahman MH, Hossain MA, Hoque MR, Aktaruzzaman M. Bioinformatics and Systems Biology Approaches to Identify the Synergistic Effects of Alcohol Use Disorder on the Progression of Neurological Diseases. Neuroscience 2024; 543:65-82. [PMID: 38401711 DOI: 10.1016/j.neuroscience.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/26/2024]
Abstract
Clinical investigations showed that individuals with Alcohol Use Disorder (AUD) have worse Neurological Disease (ND) development, pointing to possible pathogenic relationships between AUD and NDs. It remains difficult to identify risk factors that are predisposing between AUD and NDs. In order to fix these issues, we created the bioinformatics pipeline and network-based approaches for employing unbiased methods to discover genes abnormally stated in both AUD and NDs and to pinpoint some of the common molecular pathways that might underlie AUD and ND interaction. We found 100 differentially expressed genes (DEGs) in both the AUD and ND patient's tissue samples. The most important Gene Ontology (GO) terms and metabolic pathways, including positive control of cytotoxicity caused by T cells, proinflammatory responses, antigen processing and presentation, and platelet-triggered interactions with vascular and circulating cell pathways were then extracted using the overlapped DEGs. Protein-protein interaction analysis was used to identify hub proteins, including CCL2, IL1B, TH, MYCN, HLA-DRB1, SLC17A7, and HNF4A, in the pathways that have been reported as playing a function in these disorders. We determined several TFs (HNF4A, C4A, HLA-B, SNCA, HLA-DMB, SLC17A7, HLA-DRB1, HLA-C, HLA-A, and HLA-DPB1) and potential miRNAs (hsa-mir-34a-5p, hsa-mir-34c-5p, hsa-mir-449a, hsa-mir-155-5p, and hsa-mir-1-3p) were crucial for regulating the expression of AUD and ND which could serve as prospective targets for treatment. Our methodologies discovered unique putative biomarkers that point to the interaction between AUD and various neurological disorders, as well as pathways that could one day be the focus of therapeutic intervention.
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Affiliation(s)
- Md Jahangir Alam
- Department of Computer Science and Engineering, Islamic University, Kushtia 7003, Bangladesh; Center for Advanced Bioinformatics and Artificial Intelligence Research, Islamic University, Kushtia 7003, Bangladesh
| | - Md Habibur Rahman
- Department of Computer Science and Engineering, Islamic University, Kushtia 7003, Bangladesh; Center for Advanced Bioinformatics and Artificial Intelligence Research, Islamic University, Kushtia 7003, Bangladesh.
| | - Md Arju Hossain
- Department of Biotechnology and Genetic Engineering, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh; Department of Microbiology, Primeasia University, Banani, Dhaka 1213, Bangladesh
| | - Md Robiul Hoque
- Department of Computer Science and Engineering, Islamic University, Kushtia 7003, Bangladesh
| | - Md Aktaruzzaman
- Department of Computer Science and Engineering, Islamic University, Kushtia 7003, Bangladesh
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Li D, Zhou L, Cao Z, Wang J, Yang H, Lyu M, Zhang Y, Yang R, Wang J, Bian Y, Xu W, Wang Y. Associations of environmental factors with neurodegeneration: An exposome-wide Mendelian randomization investigation. Ageing Res Rev 2024; 95:102254. [PMID: 38430933 DOI: 10.1016/j.arr.2024.102254] [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: 07/18/2023] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Neurodegenerative diseases (NDDs) remain a global health challenge. Previous studies have reported potential links between environmental factors and NDDs, however, findings remain controversial across studies and elusive to be interpreted as evidence of robust causal associations. In this study, we comprehensively explored the causal associations of the common environmental factors with major NDDs including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS), based on updated large-scale genome-wide association study data through two-sample Mendelian randomization (MR) approach. Our results indicated that, overall, 28 significant sets of exposure-outcome causal association evidence were detected, 12 of which were previously underestimated and newly identified, including average weekly beer plus cider intake, strenuous sports or other exercises, diastolic blood pressure, and body fat percentage with AD, alcohol intake frequency with PD, apolipoprotein B, systolic blood pressure, and forced expiratory volume in 1 s (FEV1) with ALS, and alcohol intake frequency, hip circumference, forced vital capacity, and FEV1 with MS. Moreover, the causal effects of several environmental factors on NDDs were found to overlap. From a triangulation perspective, our investigation provided insights into understanding the associations of environmental factors with NDDs, providing causality-oriented evidence to establish the risk profile of NDDs.
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Affiliation(s)
- Dun Li
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Lihui Zhou
- School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Zhi Cao
- School of Public Health, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jida Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Hongxi Yang
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Mingqian Lyu
- Department of Computer Science, RWTH Aachen University, Aachen, 52062, Germany
| | - Yuan Zhang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Rongrong Yang
- Public Health Science and Engineering College, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ju Wang
- School of Biomedical Engineering, Tianjin Medical University, Tianjin 300070, China
| | - Yuhong Bian
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Weili Xu
- Aging Research Center, Department of Neurobiology, Health Care Sciences and Society Karolinska Institutet and Stockholm University, Stockholm 171 65, Sweden
| | - Yaogang Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; School of Public Health, Tianjin Medical University, Tianjin 300070, China; Public Health Science and Engineering College, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; National Institute of Health Data Science at Peking University, Peking University, Beijing 100191, China.
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Keramati M, Kheirouri S, Etemadifar M. Dietary approach to stop hypertension (DASH), but not Mediterranean and MIND, dietary pattern protects against Parkinson's disease. Food Sci Nutr 2024; 12:943-951. [PMID: 38370088 PMCID: PMC10867496 DOI: 10.1002/fsn3.3809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 02/20/2024] Open
Abstract
The neuroprotective effects of dietary patterns have been reported in previous studies. This study aimed to examine the association between the dietary approach to stop hypertension (DASH), the Mediterranean diet (MeDi), and the Mediterranean-DASH intervention for neurodegenerative delay (MIND) with the severity and risk of Parkinson's disease (PD). In this comparative cross-sectional study, 120 patients with PD and 50 healthy participants participated. Adherence to DASH, MeDi, and MIND dietary patterns was determined according to the dietary intake data using a food frequency questionnaire (FFQ). The Severity of PD was determined by the Unified Parkinson's Disease Rating Scale (UPDRS). The mean score of the DASH was significantly lower in the PD group compared to the healthy group (p = .006), but the mean score of MeDi and MIND did not significantly differ between the two groups (p > .05). Also, the mean score of the DASH was significantly lower in men than in women in the healthy group (p = .018). High adherence to the DASH diet decreased the risk of PD by 15% (OR = 0.856, 95% CI: 0.751, 0.976, p = .020). Participants in quartiles 3 and 4 of the DASH dietary pattern had 86% (p = .003) and 87% (p = .007), respectively, lower risk of PD. MeDi and MIND diets were not significantly associated with the risk of PD. There was no significant association between dietary patterns and the severity of PD. The findings indicate that high adherence to the DASH dietary pattern may protect against PD.
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Affiliation(s)
- Majid Keramati
- Faculty of Nutrition and Food SciencesTabriz University of medical sciencesTabrizIran
- Student Research CommitteeTabriz University of Medical SciencesTabrizIran
| | - Sorayya Kheirouri
- Faculty of Nutrition and Food SciencesTabriz University of medical sciencesTabrizIran
| | - Masoud Etemadifar
- Department of NeurosurgeryIsfahan University of Medical SciencesIsfahanIran
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Paola Caminiti S, Gallo S, Menegon F, Naldi A, Comi C, Tondo G. Lifestyle Modulators of Neuroplasticity in Parkinson's Disease: Evidence in Human Neuroimaging Studies. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:602-613. [PMID: 37326116 DOI: 10.2174/1871527322666230616121213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/25/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease characterized by both motor and non-motor symptoms. A progressive neuronal loss and the consequent clinical impairment lead to deleterious effects on daily living and quality of life. Despite effective symptomatic therapeutic approaches, no disease-modifying therapies are currently available. Emerging evidence suggests that adopting a healthy lifestyle can improve the quality of life of PD patients. In addition, modulating lifestyle factors can positively affect the microstructural and macrostructural brain levels, corresponding to clinical improvement. Neuroimaging studies may help to identify the mechanisms through which physical exercise, dietary changes, cognitive enrichment, and exposure to substances modulate neuroprotection. All these factors have been associated with a modified risk of developing PD, with attenuation or exacerbation of motor and non-motor symptomatology, and possibly with structural and molecular changes. In the present work, we review the current knowledge on how lifestyle factors influence PD development and progression and the neuroimaging evidence for the brain structural, functional, and molecular changes induced by the adoption of positive or negative lifestyle behaviours.
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Affiliation(s)
| | - Silvia Gallo
- Neurology Unit, Department of Translational Medicine, Movement Disorders Centre, University of Piemonte Orientale, 28100 Novara, Italy
| | - Federico Menegon
- Neurology Unit, Department of Translational Medicine, Movement Disorders Centre, University of Piemonte Orientale, 28100 Novara, Italy
| | - Andrea Naldi
- Neurology Unit, San Giovanni Bosco Hospital, 10154 Turin, Italy
| | - Cristoforo Comi
- Neurology Unit, Department of Translational Medicine, S. Andrea Hospital, University of Piemonte Orientale, 13100 Vercelli, Italy
| | - Giacomo Tondo
- Neurology Unit, Department of Translational Medicine, S. Andrea Hospital, University of Piemonte Orientale, 13100 Vercelli, Italy
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Hong JT, Jung HK, Lee KJ, Gong EJ, Shin CM, Kim JW, Youn YH, Lee B. Potential risk of proton pump inhibitors for Parkinson's disease: A nationwide nested case-control study. PLoS One 2023; 18:e0295981. [PMID: 38096177 PMCID: PMC10721081 DOI: 10.1371/journal.pone.0295981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/03/2023] [Indexed: 12/17/2023] Open
Abstract
Proton pump inhibitor (PPI) use is a potential risk factor for neurodegenerative disease development; however, its role in Parkinson's disease (PD) remains unclear. This study aimed to investigate the association between PPI use and PD risk. A total of 31,326 patients with newly diagnosed PD were matches by age, sex, body mass index, diabetes, and hypertension with 125,304 controls at a ratio of 1:4. The data were collected from the Korean National Health Insurance Services Database from January 2010 to December 2019. Cumulative defined daily doses of PPIs were extracted from treatment claims. We examined the association between PPI use and PD risk using conditional logistic regression. To prevent protopathic bias, we excluded patients diagnosed with PD within a 1-year lag period after PPI exposure. We applied 2- and 3-year lag periods for sensitivity analysis. PPI use was associated with an increased risk of PD when a 1-year lag period was applied between PPI exposure and PD development (adjusted odds ratio, 1.10; 95% confidence interval, 1.07-1.13). A significant positive dose-response relationship existed between the cumulative defined daily doses of PPIs and PD development (P<0.001). Similar results were obtained for the 2- or 3-year lag periods. The association did not vary based on gender. Older age, a higher Charlson Comorbidity Index score, no alcohol consumption, and a non-smoking status were associated with a significantly increased PD risk with PPI use. We observed an association between PPI use and PD risk, although long-term follow-up studies are necessary to verify this association.
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Affiliation(s)
- Ji Taek Hong
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Hye-Kyung Jung
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Kwang Jae Lee
- Department of Gastroenterology, Ajou University School of Medicine, Suwon, Gyeonggi-do, Republic of Korea
| | - Eun Jeong Gong
- Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Gangwon-do, Republic of Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
| | - Jong Wook Kim
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Young Hoon Youn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Bora Lee
- Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
- RexSoft Corp., Seoul, Republic of Korea
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Nagakura Y, Hayashi M, Kajioka S. Analysis of Japanese nationwide health datasets: association between lifestyle habits and prevalence of neuropathic pain and fibromyalgia with reference to dementia-related diseases and Parkinson's disease. Scand J Pain 2023; 23:662-669. [PMID: 37439280 DOI: 10.1515/sjpain-2023-0010] [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: 01/21/2023] [Accepted: 06/27/2023] [Indexed: 07/14/2023]
Abstract
OBJECTIVES Chronic pain is defined as pain that persists or recurs for more than 3 months. This study focuses on neuropathic pain (NP) and fibromyalgia (FM) which are chronic pain states, and aims to identify lifestyle habits associated with their prevalence. Other neurological disorders are also analyzed as references. METHODS Association between the variable referring to disease prevalence (number of claims for reimbursement of marker drugs) and the variable for lifestyle habits/health examination results (collected from insured individuals aged 40-74 years) was determined by analyzing Japanese nationwide datasets, which were collected in 2018 and aggregated by prefecture. Pregabalin, donepezil, and levodopa were used as marker drugs for the chronic pain states, dementia-related diseases (Alzheimer's disease and Lewy body dementia) and Parkinson's disease (PD), respectively. Pearson's correlation analysis and multiple linear regression analysis were conducted. RESULTS Variables showing correlation coefficient (|r|)>0.5 were put into the multiple linear regression. Exercise habits (ꞵ=-0.3182), smoking habits (0.3218), daily drinking (0.2683), and alanine aminotransferase>51 U/L (0.2309) were finally incorporated in the equation for pregabalin (R 2=0.7268). Walking speed (-0.4543) and daily drinking (0.5077) were incorporated in the equation for donepezil (R 2=0.5718). CONCLUSIONS The prevalence of chronic pain states is associated with lifestyle habits, just like the dementia-related diseases. Exercise in daily life is negatively associated with the prevalence of the chronic pain states, although excessive alcohol drinking, smoking, and high serum ALT are positively associated with it. The prevalence of PD seems less associated with lifestyle habits.
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Affiliation(s)
- Yukinori Nagakura
- School of Pharmacy at Fukuoka, International University of Health and Welfare, Okawa-City, Fukuoka, Japan
| | - Maya Hayashi
- The Ministry of Justice in Japan, Correction Bureau, Tokyo, Japan
| | - Shunichi Kajioka
- School of Pharmacy at Fukuoka, International University of Health and Welfare, Okawa-City, Fukuoka, Japan
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Xiang Y, Zhou X, Huang X, Zhou X, Zeng Q, Zhou Z, Xu Q, Liu Z, Sun Q, Tan J, Yan X, Tang B, Zhang X, Guo J. The risk factors for probable REM sleep behavior disorder: A case-control study. Sleep Med 2023; 110:99-105. [PMID: 37572576 DOI: 10.1016/j.sleep.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/29/2023] [Accepted: 08/04/2023] [Indexed: 08/14/2023]
Abstract
OBJECTIVE To investigate the risk factors for REM sleep behavior disorder (RBD) in a case-control study. METHODS Participants with probable RBD (pRBD) were defined using the RBD Questionnaire-Hong Kong (RBDQ-HK). Controls were collected by matching age and sex. Demographic information, lifestyle, comorbidity, prodromal symptoms of Parkinson's disease (PD), and blood biomarkers were assessed. The associations between these factors and pRBD were investigated by logistic regression. Partial correlation analysis was used to assess the association between the severity of RBD and depression. RESULTS A total of 278 pRBD participants (age = 58.31 ± 15.82 years) and 556 controls (age = 58.16 ± 15.84 years) were enrolled in this study. Patients with pRBD were more likely to be current alcohol drinkers (OR 1.50, 95% CI 1.0-2.32). Participants with pRBD had a higher Hamilton Depression Rating Scale (HAMD-17) score (OR 1.17, 95% CI 1.11-1.22) than controls and were more likely to report arthritis (OR 1.53, 95% CI 1.08-2.16), constipation (OR 1.93, 95% CI 1.31-2.86), hyposmia (OR 1.71, 95% CI 1.10-2.67), and depression (OR 3.15, 95% CI 2.17-4.58). Higher levels of total cholesterol (OR 1.15, 95% CI 0.99-1.33) and low-density lipoprotein (OR 1.21, 95% CI 0.99-1.47) had borderline associations with pRBD. Additionally, the severity of pRBD was positively related to depression (r = 0.31, P < 0.01). CONCLUSIONS We determined several risk factors for pRBD in this case-control study. Future studies are needed to understand the mechanism underlying the association between these factors and pRBD.
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Affiliation(s)
- Yaqin Xiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoxia Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - XiuRong Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xun Zhou
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhou Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Xu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenhua Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiying Sun
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jieqiong Tan
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, China
| | - Xinxiang Yan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Beisha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, China; National Clinical Research Centre for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Centre for Medical Genetics, Central South University, Hunan, China
| | - Xuewei Zhang
- National Clinical Research Centre for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Centre for Medical Genetics, Central South University, Hunan, China; Health Management Center, Xiangya Hospital, Central South University, Hunan, China.
| | - Jifeng Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, China; National Clinical Research Centre for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Centre for Medical Genetics, Central South University, Hunan, China; Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases, Hunan, China.
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10
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Schäffer E, Piel J. [The exposome in the context of preventive measures for Alzheimer's and Parkinson's diseases]. DER NERVENARZT 2023; 94:892-903. [PMID: 37639074 DOI: 10.1007/s00115-023-01538-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/24/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Preventive measures addressing the exposome can counteract neurodegenerative diseases. OBJECTIVE This article gives an overview on the influence of general and individual exogenous factors (environmental influences and lifestyle changes) as well as endogenous factors (e.g. metabolic alterations) on the development and progression of Alzheimer's disease (AD) and Parkinson's disease (PD). METHODS Summary and evaluation of current scientific studies and evidence regarding the exposome and prevention of AD and PD. RESULTS Numerous studies could demonstrate a potential influence of environmental influences associated with industrialization (general exogenous factors), such as pesticides, solvents or air pollution on the development of AD and PD. Additionally, individually addressable changes of lifestyle (individual exogenous factors, e.g. physical activity, cognitive stimulation, nutrition and sleep) contribute to disease protection and modification and are becoming increasingly more important in light of still limited therapeutic interventions. Moreover, other exogenous factors (medication, noise pollution, head trauma and heavy metals) are discussed as risk factors for AD and/or PD. Endogenous factors (e.g., changes of the enteral microbiome, systemic inflammation and neuroinflammation, metabolic changes) can contribute to disease development by a higher potential for interacting with exogenous factors. CONCLUSION Despite the comprehensive scientific evidence confirming the significance of the exposome for the pathogenesis of AD and PD, the great potential of preventive measures has not yet been exploited. A clarification of the high potential of lifestyle changes should be a therapeutic standard not only for individuals with manifest PD/AD but also for individuals with a risk profile or with suspected prodromal disease. Further investigations on the influence of environmental factors and the implementation of preventive strategies to avoid exposure should be the focus of international efforts.
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Affiliation(s)
- Eva Schäffer
- Klinik für Neurologie, Universität Kiel, Universitätsklinikum Schleswig-Holstein, Arnold-Heller-Str. 3, 24105, Kiel, Deutschland.
| | - Johannes Piel
- Klinik für Neurologie, Universität Kiel, Universitätsklinikum Schleswig-Holstein, Arnold-Heller-Str. 3, 24105, Kiel, Deutschland
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11
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Ryu DW, Han K, Cho AH. Mortality and causes of death in patients with Parkinson's disease: a nationwide population-based cohort study. Front Neurol 2023; 14:1236296. [PMID: 37719757 PMCID: PMC10501780 DOI: 10.3389/fneur.2023.1236296] [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: 06/07/2023] [Accepted: 08/01/2023] [Indexed: 09/19/2023] Open
Abstract
Objective Parkinson's disease (PD) is a neurodegenerative disease involving multiple systems that can affect mortality. This study aimed to compare all-cause and cause-specific mortality between people with PD and without PD. Methods This population-based prospective cohort study is based on Korean National Health Insurance Service data. The primary outcome was the hazard ratio (HR) of all-cause and cause-specific mortality for PD from 2010 to 2019. Cox proportional hazards regression was applied to calculate HRs under crude and three adjusted models with epidemiologic variables. Results A total of 8,220 PD patients and 41,100 age- and sex-matched controls without PD were registered. Ten-year mortality was 47.9% in PD patients and 20.3% in non-PD controls. The mortality rate was higher among older and male participants. The leading cause of death in PD was nervous system diseases (38.73%), and 97.1% of those were extrapyramidal and movement disorders, followed by circulatory diseases (15.33%), respiratory diseases (12.56%), and neoplasms (9.7%). PD contributed to an increased risk of all-cause death with an HR of 2.96 (95% CI = 2.84-3.08). HRs of death for PD were 3.07 (95% CI = 2.74-3.45) from respiratory diseases, 1.93 (95% CI = 1.75-2.13) from circulatory diseases, 2.35 (95% CI = 2.00-2.77) from external causes, and 2.69 (95% CI = 2.10-3.43) from infectious diseases. Conclusion These results showed that PD was related to a higher risk of mortality in all ages and sexes. The leading causes of death in PD were nervous, circulatory, respiratory, infectious diseases, and external causes.
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Affiliation(s)
- Dong-Woo Ryu
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - A-Hyun Cho
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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12
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Seçkinoğulları B, Balkan AF, Çakmaklı GY, Aksoy S, Elibol B. Acute effects of lumbosacral mobilization on balance and functional activities in idiopathic Parkinson's disease:A randomised controlled trial. Neurol Res 2023:1-8. [PMID: 37068206 DOI: 10.1080/01616412.2023.2203613] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
BACKGROUND Decreased axial rotation, impaired coordination between axial segments and axial tone contribute to gait, balance and postural disorders in Parkinson's Disease. AIMS The aim of our study was to examine the acute effects of lumbosacral mobilization on balance and functional activities in patients with idiopathic Parkinson's Disease. METHODS This study was a randomized controlled clinical trial conducted at Hacettepe University. The study included 28 patients with Parkinson's Disease who were between stage 2-3 according to the Modified Hoehn&Yahr Staging Scale. Participants were randomised to the study group, including 10 minutes of lumbosacral mobilization, or the control group, including no intervention. The Unified Parkinson's Disease Rating Scale (UPDRS), Modified Parkinson's Activity Scale (MPAS), Dynamic Gait Index (DGI), and static posturography test (Modified Clinical Test of Sensory Interaction and Balance - mCTSIB) were all examined twice. RESULTS The UPDRS, MPAS, DGI values and the composite score with the soft ground eyes open condition in the mCTSIB were improved in the study group (p < 0.05). DGI and MPAS values reached the level of significance between the groups (p < 0.05). CONCLUSION This study is the first to examine the effect of lumbosacral mobilization on balance and functional activities in patients with Parkinson's disease. Lumbosacral mobilization is an effective method in PwPD. Lumbosacral mobilization may be an alternative way for these patients to improve their balance and functional activities.
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Affiliation(s)
- Büşra Seçkinoğulları
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Ayla Fil Balkan
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Gül Yalçın Çakmaklı
- School of Medicine, Neurology Department, Hacettepe University, Ankara, Turkey
| | - Songül Aksoy
- Faculty of Health Sciences, Department of Audiology, Lokman Hekim University, Ankara, Turkey
| | - Bülent Elibol
- School of Medicine, Neurology Department, Hacettepe University, Ankara, Turkey
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13
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Mitchell E, Chohan H, Bestwick JP, Noyce AJ. Alcohol and Parkinson's Disease: A Systematic Review and Meta-Analysis. JOURNAL OF PARKINSON'S DISEASE 2022; 12:2369-2381. [PMID: 36442208 DOI: 10.3233/jpd-223522] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND A substantial body of research has examined the relationship between alcohol consumption and risk of Parkinson's disease (PD). OBJECTIVE To provide an updated systematic review and meta-analysis of observational studies examining the relationship between alcohol consumption and risk of PD. METHODS Eligible studies comparing PD risk in ever vs. never alcohol drinkers were sourced from six databases. Outcomes were pooled using standard meta-analysis techniques. Separate female and male estimates were generated from studies reporting sex-specific data. Additionally, cohort studies stratifying participants by quantity of alcohol intake were integrated in a dose-response analysis. RESULTS 52 studies were included, totaling 63,707 PD patients and 9,817,924 controls. Our meta-analysis supported a statistically significant overrepresentation of never drinkers among PD subjects; odds ratio (OR) for ever drinking alcohol 0.84 (95% confidence interval (CI) 0.76 - 0.92). A subgroup analysis revealed similar effect estimates in females and males. A further synthesis of seven cohort studies suggested a negative, dose-dependent association between alcohol and risk of PD. CONCLUSION In the absence of a known neuroprotective pathway, there may be reason to doubt a true biological effect. The role of survivor bias, selection and recall bias, misclassification, and residual confounding requires consideration. Alternatively, observations might be attributable to reverse causation if those predestined for PD alter their alcohol habits during the preclinical phase. Major limitations of our study include high between-study heterogeneity (I2 = 93.2%) and lack of adjustment for key confounders, namely smoking status.
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Affiliation(s)
- Eleanor Mitchell
- Preventive Neurology Unit, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, UK
| | - Harneek Chohan
- Preventive Neurology Unit, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, UK
| | - Jonathan P Bestwick
- Preventive Neurology Unit, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, UK
| | - Alastair J Noyce
- Preventive Neurology Unit, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, UK
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Abstract
The global burden of Parkinson's disease (PD) has increased from 2.5 to 6.1 million since the 1990s. This is expected to rise as the world population ages and lives longer. With the current consensus on the existence of a prediagnostic phase of PD, which can be divided into a preclinical stage and a prodromal stage, we can better define the risk markers and prodromal markers of PD in the broader context of PD pathogenesis. Here, we review this pathogenetic process, and discuss the evidence behind various heritability factors, exposure to pesticides and farming, high dairy consumption, and traumatic brain injuries that have been known to raise PD risk. Physical activity, early active lifestyle, high serum uric acid, caffeine consumption, exposure to tobacco, nonsteroidal anti-inflammatory drugs, and calcium channel blockers, as well as the Mediterranean and the MIND diets are observed to lower PD risk. This knowledge, when combined with ways to identify at-risk populations and early prodromal PD patients, can help the clinician make practical recommendations. Most importantly, it helps us set the parameters for epidemiological studies and create the paradigms for clinical trials.
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Affiliation(s)
- Suraj Rajan
- Division of Movement Disorders, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Bonnie Kaas
- Division of Movement Disorders, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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15
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Sun X, Xue L, Wang Z, Xie A. Update to the Treatment of Parkinson's Disease Based on the Gut-Brain Axis Mechanism. Front Neurosci 2022; 16:878239. [PMID: 35873830 PMCID: PMC9299103 DOI: 10.3389/fnins.2022.878239] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 06/20/2022] [Indexed: 12/27/2022] Open
Abstract
Gastrointestinal (GI) symptoms represented by constipation were significant non-motor symptoms of Parkinson’s disease (PD) and were considered early manifestations and aggravating factors of the disease. This paper reviewed the research progress of the mechanism of the gut-brain axis (GBA) in PD and discussed the roles of α-synuclein, gut microbiota, immune inflammation, neuroendocrine, mitochondrial autophagy, and environmental toxins in the mechanism of the GBA in PD. Treatment of PD based on the GBA theory has also been discussed, including (1) dietary therapy, such as probiotics, vitamin therapy, Mediterranean diet, and low-calorie diet, (2) exercise therapy, (3) drug therapy, including antibiotics; GI peptides; GI motility agents, and (4) fecal flora transplantation can improve the flora. (5) Vagotomy and appendectomy were associated but not recommended.
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Affiliation(s)
- Xiaohui Sun
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Li Xue
- Recording Room, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zechen Wang
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Anmu Xie
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
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16
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Bianchi VE, Rizzi L, Somaa F. The role of nutrition on Parkinson's disease: a systematic review. Nutr Neurosci 2022; 26:605-628. [PMID: 35730414 DOI: 10.1080/1028415x.2022.2073107] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Parkinson's disease (PD) in elderly patients is the second most prevalent neurodegenerative disease. The pathogenesis of PD is associated with dopaminergic neuron degeneration of the substantia nigra in the basal ganglia, causing classic motor symptoms. Oxidative stress, mitochondrial dysfunction, and neuroinflammation have been identified as possible pathways in laboratory investigations. Nutrition, a potentially versatile factor from all environmental factors affecting PD, has received intense research scrutiny. METHODS A systematic search was conducted in the MEDLINE, EMBASE, and WEB OF SCIENCE databases from 2000 until the present. Only randomized clinical trials (RCTs), observational case-control studies, and follow-up studies were included. RESULTS We retrieved fifty-two studies that met the inclusion criteria. Most selected studies investigated the effects of malnutrition and the Mediterranean diet (MeDiet) on PD incidence and progression. Other investigations contributed evidence on the critical role of microbiota, vitamins, polyphenols, dairy products, coffee, and alcohol intake. CONCLUSIONS There are still many concerns regarding the association between PD and nutrition, possibly due to underlying genetic and environmental factors. However, there is a body of evidence revealing that correcting malnutrition, gut microbiota, and following the MeDiet reduced the onset of PD and reduced clinical progression. Other factors, such as polyphenols, polyunsaturated fatty acids, and coffee intake, can have a potential protective effect. Conversely, milk and its accessory products can increase PD risk. Nutritional intervention is essential for neurologists to improve clinical outcomes and reduce the disease progression of PD.
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Affiliation(s)
| | - Laura Rizzi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Fahad Somaa
- King Abdulaziz University, Department of occupational therapy. Jeddah, Makkah, Saudi Arabia
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17
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Liu X, Vigorito M, Huang W, Khan MAS, Chang SL. The Impact of Alcohol-Induced Dysbiosis on Diseases and Disorders of the Central Nervous System. J Neuroimmune Pharmacol 2022; 17:131-151. [PMID: 34843074 DOI: 10.1007/s11481-021-10033-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 11/11/2021] [Indexed: 12/29/2022]
Abstract
The human digestive tract contains a diverse and abundant microbiota that is important for health. Excessive alcohol use can disrupt the balance of these microbes (known as dysbiosis), leading to elevated blood endotoxin levels and systemic inflammation. Using QIAGEN Ingenuity Pathway Analysis (IPA) bioinformatics tool, we have confirmed that peripheral endotoxin (lipopolysaccharide) mediates various cytokines to enhance the neuroinflammation signaling pathway. The literature has identified alcohol-mediated neuroinflammation as a possible risk factor for the onset and progression of neurodegenerative diseases, including Alzheimer's disease (AD) and Parkinson's disease (PD), and psychiatric disorders such as addiction to alcohol and other drugs. In this review, we discuss alcohol-use-induced dysbiosis in the gut and other body parts as a causal factor in the progression of Central Nervous System (CNS) diseases including neurodegenerative disease and possibly alcohol use disorder.
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Affiliation(s)
- Xiangqian Liu
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA
- Department of Histology and Embryology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P.R. China
| | - Michael Vigorito
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA
- Department of Psychology, Seton Hall University, South Orange, NJ, 07079, USA
| | - Wenfei Huang
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA
- Department of Biological Sciences, Seton Hall University, South Orange, NJ, 07079, USA
| | - Mohammed A S Khan
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospital for Children, Boston, MA, 02114, USA.
| | - Sulie L Chang
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA.
- Department of Biological Sciences, Seton Hall University, South Orange, NJ, 07079, USA.
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Zhong L, Chen W, Wang T, Zeng Q, Lai L, Lai J, Lin J, Tang S. Alcohol and Health Outcomes: An Umbrella Review of Meta-Analyses Base on Prospective Cohort Studies. Front Public Health 2022; 10:859947. [PMID: 35602135 PMCID: PMC9115901 DOI: 10.3389/fpubh.2022.859947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/06/2022] [Indexed: 12/18/2022] Open
Abstract
An umbrella review of meta-analyses was performed to summarize the evidence of associations between alcohol consumption and health outcomes and to assess its credibility. Meta-analyses of prospective cohort studies reporting the associations of alcohol consumption with health outcomes were identified. We recalculated the random-effects summary effect size and 95% confidence interval, heterogeneity, and small-study effect for each meta-analysis and graded the evidence. Fifty-nine publications reporting 224 meta-analyses of prospective cohort studies with 140 unique health outcomes were included, in which there were 49 beneficial associations and 25 harmful associations with nominally statistically significant summary results. But quality of evidence was rated high only for seven beneficial associations (renal cell carcinoma risk, dementia risk, colorectal cancer mortality, and all-cause mortality in patients with hypertension for low alcohol consumption; renal cell carcinoma risk, cardiovascular disease (CVD) risk in patients with hypertension and all-cause mortality in patients with hypertension for moderate consumption) and four harmful associations (cutaneous basal cell carcinoma risk for low alcohol consumption; cutaneous basal cell carcinoma risk and cutaneous squamous cell carcinoma risk for moderate alcohol consumption; hemorrhagic stroke risk for high alcohol consumption). In this umbrella review, only 11 health outcomes (5 in low alcohol consumption, 5 in moderate alcohol consumption and 1 in high alcohol consumption) with statistically significant showed high quality of epidemiologic evidence. More robust and larger prospective studies are needed to verify our results.
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Affiliation(s)
- Lixian Zhong
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Weiwei Chen
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
- Department of Gastroenterology, The First People's Hospital of Zunyi (The Third Affiliated Hospital of Zunyi Medical University), Zunyi, China
| | - Tonghua Wang
- Department of Gastroenterology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Qiuting Zeng
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Leizhen Lai
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Junlong Lai
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Junqin Lin
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Shaohui Tang
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, China
- *Correspondence: Shaohui Tang
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Banerjee P, Saha I, Sarkar D, Maiti AK. Contributions and Limitations of Mitochondria-Targeted and Non-Targeted Antioxidants in the Treatment of Parkinsonism: an Updated Review. Neurotox Res 2022; 40:847-873. [PMID: 35386026 DOI: 10.1007/s12640-022-00501-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 11/24/2022]
Abstract
As conventional therapeutics can only treat the symptoms of Parkinson's disease (PD), major focus of research in recent times is to slow down or prevent the progression of neuronal degeneration in PD. Non-targeted antioxidants have been an integral part of the conventional therapeutics regimen; however, their importance have lessened over time because of their controversial outcomes in clinical PD trials. Inability to permeate and localize within the mitochondria remains the main drawback on the part of non-targeted antioxidants inspite of possessing free radical scavenging properties. In contrast, mitochondrial-targeted antioxidants (MTAs), a special class of compounds have emerged having high advantages over non-targeted antioxidants by virtue of efficient pharmacokinetics and better absorption rate with capability to localize many fold inside the mitochondrial matrix. Preclinical experimentations indicate that MTAs have the potential to act as better alternatives compared to conventional non-targeted antioxidants in treating PD; however, sufficient clinical trials have not been conducted to investigate the efficacies of MTAs in treating PD. Controversial clinical outcomes on the part of non-targeted antioxidants and lack of clinical trials involving MTAs have made it difficult to go ahead with a direct comparison and in turn have slowed down the progress of development of safer and better alternate strategies in treating PD. This review provides an insight on the roles MTAs and non-targeted antioxidants have played in the treatment of PD till date in preclinical and clinical settings and discusses about the limitations of mitochondria-targeted and non-targeted antioxidants that can be resolved for developing effective strategies in treating Parkinsonism.
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Affiliation(s)
- Priyajit Banerjee
- Department of Zoology, University of Burdwan, Burdwan, West Bengal, Pin-713104, India
| | - Ishita Saha
- Department of Physiology, Medical College Kolkata, Kolkata, West Bengal, Pin-700073, India
| | - Diptendu Sarkar
- Department of Microbiology, Ramakrishna Mission Vidyamandira, Belur Math, Howrah, West Bengal, 711202, India
| | - Arpan Kumar Maiti
- Mitochondrial Biology and Experimental Therapeutics Laboratory, Department of Zoology, University of North Bengal, District - Darjeeling, P.O. N.B.U, Raja Rammohunpur, West Bengal, Pin-734013, India.
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20
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Bivol S, Mellick GD, Gratten J, Parker R, Mulcahy A, Mosley PE, Poortvliet PC, Campos AI, Mitchell BL, Garcia-Marin LM, Cross S, Ferguson M, Lind PA, Loesch DZ, Visscher PM, Medland SE, Scherzer CR, Martin NG, Rentería ME. Australian Parkinson's Genetics Study (APGS): pilot (n=1532). BMJ Open 2022; 12:e052032. [PMID: 35217535 PMCID: PMC8883215 DOI: 10.1136/bmjopen-2021-052032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 01/31/2022] [Indexed: 11/04/2022] Open
Abstract
PURPOSE Parkinson's disease (PD) is a neurodegenerative disorder associated with progressive disability. While the precise aetiology is unknown, there is evidence of significant genetic and environmental influences on individual risk. The Australian Parkinson's Genetics Study seeks to study genetic and patient-reported data from a large cohort of individuals with PD in Australia to understand the sociodemographic, genetic and environmental basis of PD susceptibility, symptoms and progression. PARTICIPANTS In the pilot phase reported here, 1819 participants were recruited through assisted mailouts facilitated by Services Australia based on having three or more prescriptions for anti-PD medications in their Pharmaceutical Benefits Scheme records. The average age at the time of the questionnaire was 64±6 years. We collected patient-reported information and sociodemographic variables via an online (93% of the cohort) or paper-based (7%) questionnaire. One thousand five hundred and thirty-two participants (84.2%) met all inclusion criteria, and 1499 provided a DNA sample via traditional post. FINDINGS TO DATE 65% of participants were men, and 92% identified as being of European descent. A previous traumatic brain injury was reported by 16% of participants and was correlated with a younger age of symptom onset. At the time of the questionnaire, constipation (36% of participants), depression (34%), anxiety (17%), melanoma (16%) and diabetes (10%) were the most reported comorbid conditions. FUTURE PLANS We plan to recruit sex-matched and age-matched unaffected controls, genotype all participants and collect non-motor symptoms and cognitive function data. Future work will explore the role of genetic and environmental factors in the aetiology of PD susceptibility, onset, symptoms, and progression, including as part of international PD research consortia.
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Affiliation(s)
- Svetlana Bivol
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - George D Mellick
- Griffith Institute for Drug Discovery (GRIDD), Griffith University, Brisbane, QLD, Australia
| | - Jacob Gratten
- Mater Research, Translational Research Institute, Brisbane, QLD, Australia
| | - Richard Parker
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Aoibhe Mulcahy
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Philip E Mosley
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Peter C Poortvliet
- Griffith Institute for Drug Discovery (GRIDD), Griffith University, Brisbane, QLD, Australia
| | - Adrian I Campos
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Brittany L Mitchell
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Luis M Garcia-Marin
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Simone Cross
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Mary Ferguson
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Penelope A Lind
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Danuta Z Loesch
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
| | - Peter M Visscher
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Sarah E Medland
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Psychology, The University of Queensland, Brisbane, QLD, Australia
| | - Clemens R Scherzer
- Center for Advanced Parkinson Research, Harvard Medical School and Brigham & Women's Hospital, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Precision Neurology Program, Harvard Medical School and Brigham & Women's Hospital, Boston, MA, USA
- Program in Neuroscience, Harvard Medical School, Boston, MA, USA
| | | | - Miguel E Rentería
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Center for Advanced Parkinson Research, Harvard Medical School and Brigham & Women's Hospital, Boston, MA, USA
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Keramati M, Musazadeh V, Kheirouri S. Association between Mediterranean diet and Parkinson’s disease in adults: A systematic review and meta-analysis of cohort studies. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2022. [DOI: 10.3233/mnm-210019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Parkinson’s disease (PD) is a chronic neurodegenerative disorder, and previous studies have shown that the Mediterranean diet (MeDi) can be effective in reducing the incidence and progression of the disease. OBJECTIVE: The purpose of this study was to determine an association between adherence to MeDi and the risk of PD in adults by meta-analysis of cohort studies. METHODS: Online databases including Scopus, PubMed, Web of Science, and Google Scholar were searched up to March 2021. Cohort studies that examined the association of PD risk with adherence to MeDi were included. A pooled relative risk with a 95% confidence interval was calculated by a random effects meta-analysis. As well, bias assessment, assessment of heterogeneity, sensitivity, and subgroup analyses were carried out. The primary outcome was Parkinson’s incidence. RESULTS: Overall four papers on PD risk were included in the present systematic review and meta-analysis. The effect size of the summary for the risk of overall PD, comparing the highest with the lowest adherence to MeDi, was 0.76 (95% CI: 0.59, 0.98), indicating a significant inverse association. CONCLUSIONS: Adherence to MeDi has a protective role against PD. Also, adhering to this dietary pattern at a younger age may be more beneficial in reducing the risk of PD. However, we suggest more prospective cohort studies in this regard.
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Affiliation(s)
- Majid Keramati
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vali Musazadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sorayya Kheirouri
- Department of Community Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Mechanistic Insights Expatiating the Redox-Active-Metal-Mediated Neuronal Degeneration in Parkinson's Disease. Int J Mol Sci 2022; 23:ijms23020678. [PMID: 35054862 PMCID: PMC8776156 DOI: 10.3390/ijms23020678] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/07/2022] [Accepted: 01/07/2022] [Indexed: 02/06/2023] Open
Abstract
Parkinson’s disease (PD) is a complicated and incapacitating neurodegenerative malady that emanates following the dopaminergic (DArgic) nerve cell deprivation in the substantia nigra pars compacta (SN-PC). The etiopathogenesis of PD is still abstruse. Howbeit, PD is hypothesized to be precipitated by an amalgamation of genetic mutations and exposure to environmental toxins. The aggregation of α-synucelin within the Lewy bodies (LBs), escalated oxidative stress (OS), autophagy-lysosome system impairment, ubiquitin-proteasome system (UPS) impairment, mitochondrial abnormality, programmed cell death, and neuroinflammation are regarded as imperative events that actively participate in PD pathogenesis. The central nervous system (CNS) relies heavily on redox-active metals, particularly iron (Fe) and copper (Cu), in order to modulate pivotal operations, for instance, myelin generation, synthesis of neurotransmitters, synaptic signaling, and conveyance of oxygen (O2). The duo, namely, Fe and Cu, following their inordinate exposure, are viable of permeating across the blood–brain barrier (BBB) and moving inside the brain, thereby culminating in the escalated OS (through a reactive oxygen species (ROS)-reliant pathway), α-synuclein aggregation within the LBs, and lipid peroxidation, which consequently results in the destruction of DArgic nerve cells and facilitates PD emanation. This review delineates the metabolism of Fe and Cu in the CNS, their role and disrupted balance in PD. An in-depth investigation was carried out by utilizing the existing publications obtained from prestigious medical databases employing particular keywords mentioned in the current paper. Moreover, we also focus on decoding the role of metal complexes and chelators in PD treatment. Conclusively, metal chelators hold the aptitude to elicit the scavenging of mobile/fluctuating metal ions, which in turn culminates in the suppression of ROS generation, and thereby prelude the evolution of PD.
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Sun J, Deng L, Zhu H, Liu M, Lyu R, Lai Q, Zhang Y. Meta-analysis on the association between rs11868035, rs823144, rs3851179 and Parkinson's disease. Meta Gene 2021. [DOI: 10.1016/j.mgene.2021.100949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Strikwerda AJ, Dommershuijsen LJ, Ikram MK, Voortman T. Diet Quality and Risk of Parkinson's Disease: The Rotterdam Study. Nutrients 2021; 13:nu13113970. [PMID: 34836224 PMCID: PMC8618850 DOI: 10.3390/nu13113970] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/29/2021] [Accepted: 11/03/2021] [Indexed: 12/13/2022] Open
Abstract
The Mediterranean diet has been associated with the risk of Parkinson’s disease (PD), but limited research has been performed on other dietary patterns. We studied the relationship between overall diet quality and PD risk in the general population. We included 9414 participants from the Rotterdam Study, a prospective population-based study in the Netherlands. Diet was defined using a Dutch diet quality score, a Mediterranean diet score and data-driven dietary patterns constructed with principal component analysis (PCA). During an average follow-up of 14.1 years, PD was diagnosed in 129 participants. We identified a ‘Prudent’, ‘Unhealthy’ and ‘Traditional Dutch’ pattern from the PCA. We found a possible association between the Mediterranean diet (Hazard ratio (HR) per standard deviation (SD) 0.89 (95% confidence interval (CI) 0.74–1.07)), the ‘Prudent’ pattern (HR per SD 0.81 (95% CI 0.61–1.08)) and the risk of PD. However, no associations with PD risk were found for the Dutch diet quality score (HR per SD 0.93 (95% CI 0.77–1.12)), the ‘Unhealthy’ pattern (HR per SD 1.05 (95% CI 0.85–1.29)) or the ‘Traditional Dutch’ pattern (HR per SD 0.90 (95% CI 0.69–1.17)). In conclusion, our results corroborate previous findings of a possible protective effect of the Mediterranean diet. Further research is warranted to study the effect of other dietary patterns on PD risk.
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Affiliation(s)
- Anne J. Strikwerda
- Department of Epidemiology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (A.J.S.); (L.J.D.); (M.K.I.)
| | - Lisanne J. Dommershuijsen
- Department of Epidemiology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (A.J.S.); (L.J.D.); (M.K.I.)
| | - M. Kamran Ikram
- Department of Epidemiology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (A.J.S.); (L.J.D.); (M.K.I.)
- Department of Neurology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Trudy Voortman
- Department of Epidemiology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (A.J.S.); (L.J.D.); (M.K.I.)
- Division of Human Nutrition and Health, Wageningen University & Research, P.O. Box 9101, 6700 HB Wageningen, The Netherlands
- Correspondence: ; Tel.: +31-10-704-3488
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25
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Shao C, Wang X, Wang P, Tang H, He J, Wu N. Parkinson's Disease Risk and Alcohol Intake: A Systematic Review and Dose-Response Meta-Analysis of Prospective Studies. Front Nutr 2021; 8:709846. [PMID: 34722604 PMCID: PMC8551485 DOI: 10.3389/fnut.2021.709846] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/15/2021] [Indexed: 12/12/2022] Open
Abstract
Background: The association between Parkinson's disease (PD) risk and alcohol intake is a controversial topic. Objectives: To systematically assess the association between PD risk and alcohol intake. Methods: PubMed and Embase databases were searched for eligible studies with prospective design on PD risk and alcohol intake. A meta-analysis with a random-effects model and dose-response analysis was performed. Relative risk ratios (RRs) with 95% CIs were calculated. Results: Eleven prospective studies were included. Overall, a higher intake of alcohol was inversely associated with PD risk (RR: 0.81, 95% CI: 0.70–0.95, I2 = 73.7%). Significant differences existed between the specific types of alcoholic beverages and geographic area. Specifically, a significant association existed for beer (RR: 0.78, 95% CI: 0.65–0.94, I2 = 0.0%) and studies conducted in Asia (RR: 0.66, 95% CI: 0.55–0.80, I2 = 37.3%). Dose-response analysis indicated a nonlinear relationship between PD risk and alcohol exposure. No evidence for publication bias was detected. Conclusions: In summary, our meta-analysis suggests that alcohol consumption was associated with a decreased risk of PD, with a nearly U-shaped association. Future studies are warranted to clarify the question of a specific type of alcoholic beverage-dependent association, geographic area effect, and possible threshold effects regarding both the adverse and beneficial effects of alcohol.
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Affiliation(s)
- Chuan Shao
- Department of Neurosurgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, China.,Department of Neurosurgery, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China.,Chongqing Medical University, Chongqing, China
| | - Xiaoya Wang
- Department of Neurosurgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
| | - Pan Wang
- Department of Neurosurgery, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China.,Chongqing Medical University, Chongqing, China
| | - Hui Tang
- Department of Neurosurgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
| | - Jiaquan He
- Department of Neurosurgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
| | - Nan Wu
- Department of Neurosurgery, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China.,Chongqing Medical University, Chongqing, China
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26
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Behl T, Madaan P, Sehgal A, Singh S, Sharma N, Bhatia S, Al-Harrasi A, Chigurupati S, Alrashdi I, Bungau SG. Elucidating the Neuroprotective Role of PPARs in Parkinson's Disease: A Neoteric and Prospective Target. Int J Mol Sci 2021; 22:10161. [PMID: 34576325 PMCID: PMC8467926 DOI: 10.3390/ijms221810161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 12/13/2022] Open
Abstract
One of the utmost frequently emerging neurodegenerative diseases, Parkinson's disease (PD) must be comprehended through the forfeit of dopamine (DA)-generating nerve cells in the substantia nigra pars compacta (SN-PC). The etiology and pathogenesis underlying the emergence of PD is still obscure. However, expanding corroboration encourages the involvement of genetic and environmental factors in the etiology of PD. The destruction of numerous cellular components, namely oxidative stress, ubiquitin-proteasome system (UPS) dysfunction, autophagy-lysosome system dysfunction, neuroinflammation and programmed cell death, and mitochondrial dysfunction partake in the pathogenesis of PD. Present-day pharmacotherapy can alleviate the manifestations, but no therapy has been demonstrated to cease disease progression. Peroxisome proliferator-activated receptors (PPARs) are ligand-directed transcription factors pertaining to the class of nuclear hormone receptors (NHR), and are implicated in the modulation of mitochondrial operation, inflammation, wound healing, redox equilibrium, and metabolism of blood sugar and lipids. Numerous PPAR agonists have been recognized to safeguard nerve cells from oxidative destruction, inflammation, and programmed cell death in PD and other neurodegenerative diseases. Additionally, various investigations suggest that regular administration of PPAR-activating non-steroidal anti-inflammatory drugs (NSAIDs) (ibuprofen, indomethacin), and leukotriene receptor antagonists (montelukast) were related to the de-escalated evolution of neurodegenerative diseases. The present review elucidates the emerging evidence enlightening the neuroprotective outcomes of PPAR agonists in in vivo and in vitro models experiencing PD. Existing articles up to the present were procured through PubMed, MEDLINE, etc., utilizing specific keywords spotlighted in this review. Furthermore, the authors aim to provide insight into the neuroprotective actions of PPAR agonists by outlining the pharmacological mechanism. As a conclusion, PPAR agonists exhibit neuroprotection through modulating the expression of a group of genes implicated in cellular survival pathways, and may be a propitious target in the therapy of incapacitating neurodegenerative diseases like PD.
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Affiliation(s)
- Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Piyush Madaan
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz 616, Nizwa P.O. Box 33, Oman; (S.B.); (A.A.-H.)
- School of Health Science, University of Petroleum and Energy Studies, Dehradun 248007, India
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz 616, Nizwa P.O. Box 33, Oman; (S.B.); (A.A.-H.)
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 52571, Saudi Arabia;
| | - Ibrahim Alrashdi
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK;
| | - Simona Gabriela Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410073 Oradea, Romania
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Domínguez-Baleón C, Ong JS, Scherzer CR, Rentería ME, Dong X. Understanding the effect of smoking and drinking behavior on Parkinson's disease risk: a Mendelian randomization study. Sci Rep 2021; 11:13980. [PMID: 34234189 PMCID: PMC8263722 DOI: 10.1038/s41598-021-93105-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 06/08/2021] [Indexed: 02/06/2023] Open
Abstract
Previous observational studies have identified correlations between Parkinson's disease (PD) risk and lifestyle factors. However, whether or not those associations are causal remains unclear. To infer causality between PD risk and smoking or alcohol intake, we conducted a two-sample Mendelian randomization study using genome-wide association study summary statistics from the GWAS & Sequencing Consortium of Alcohol and Nicotine use study (1.2 million participants) and the latest meta-analysis from the International Parkinson's Disease Genomics Consortium (37,688 PD cases and 18,618 proxy-cases). We performed sensitivity analyses, including testing for pleiotropy with MR-Egger and MR-PRESSO, and multivariable MR modeling to account for the genetic effects of competing substance use traits on PD risk. Our results revealed causal associations of alcohol intake (OR 0.79; 95% CI 0.65-0.96; p = 0.021) and smoking continuation (which compares current vs. former smokers) (OR 0.64; 95% CI 0.46-0.89; p = 0.008) with lower PD risk. Multivariable MR analyses showed that the causal association between drinks per week and PD is unlikely due to confounding by smoking behavior. Finally, frailty analyses suggested that the causal effects of both alcohol intake and smoking continuation on PD risk estimated from MR analysis are not explained by the presence of survival bias alone. Our findings support the role of smoking as a protective factor against PD, but only when comparing current vs. former smokers. Similarly, increased alcohol intake had a protective effect over PD risk, with the alcohol dehydrogenase 1B (ADH1B) locus as a potential candidate for further investigation of the mechanisms underlying this association.
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Affiliation(s)
- Carmen Domínguez-Baleón
- grid.38142.3c000000041936754XCenter for Advanced Parkinson Research and Precision Neurology Program, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA USA
| | - Jue-Sheng Ong
- grid.1049.c0000 0001 2294 1395Department of Genetics & Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD Australia
| | - Clemens R. Scherzer
- grid.38142.3c000000041936754XCenter for Advanced Parkinson Research and Precision Neurology Program, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA USA ,grid.32224.350000 0004 0386 9924Department of Neurology, Massachusetts General Hospital, Boston, MA USA ,grid.62560.370000 0004 0378 8294Department of Neurology, Brigham and Women’s Hospital, Boston, MA USA
| | - Miguel E. Rentería
- grid.38142.3c000000041936754XCenter for Advanced Parkinson Research and Precision Neurology Program, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA USA ,grid.1049.c0000 0001 2294 1395Department of Genetics & Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD Australia
| | - Xianjun Dong
- grid.38142.3c000000041936754XCenter for Advanced Parkinson Research and Precision Neurology Program, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA USA ,grid.62560.370000 0004 0378 8294Department of Neurology, Brigham and Women’s Hospital, Boston, MA USA ,grid.62560.370000 0004 0378 8294Genomics and Bioinformatics Hub, Brigham and Women’s Hospital, Boston, MA USA
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Deischinger C, Dervic E, Kaleta M, Klimek P, Kautzky-Willer A. Diabetes Mellitus is Associated with a Higher Relative Risk for Parkinson’s Disease in Women than in Men. JOURNAL OF PARKINSONS DISEASE 2021; 11:793-800. [DOI: 10.3233/jpd-202486] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background: In general, the risk to develop Parkinson’s disease (PD) is higher in men compared to women. Besides male sex and genetics, research suggests diabetes mellitus (DM) is a risk factor for PD as well. Objective: In this population-level study, we aimed at investigating the sex-specific impact of DM on the risk of developing PD. Methods: Medical claims data were analyzed in a cross-sectional study in the Austrian population between 1997 and 2014. In the age group of 40–79 and 80+, 235,268 patients (46.6%females, 53.4%males) with DM were extracted and compared to 1,938,173 non-diabetic controls (51.9%females, 48.1%males) in terms of risk of developing PD. Results: Men with DM had a 1.46 times increased odds ratio (OR) to be diagnosed with PD compared to non-diabetic men (95%CI 1.38–1.54, p < 0.001). The association of DM with newly diagnosed PD was significantly greater in women (OR = 1.71, 95%CI 1.60–1.82, p < 0.001) resulting in a relative risk increase of 1.17 (95%CI 1.11–1.30) in the age group 40 to 79 years. In 80+-year-olds the relative risk increase is 1.09 (95%CI 1.01–1.18). Conclusion: Although men are more prone to develop PD, women see a higher risk increase in PD than men amongst DM patients.
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Affiliation(s)
- Carola Deischinger
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, Vienna, Austria
| | - Elma Dervic
- Section for Science of Complex Systems, CeMSIIS, Medical University of Vienna, Vienna, Austria
- Complexity Science Hub Vienna, Vienna, Austria
| | - Michaela Kaleta
- Section for Science of Complex Systems, CeMSIIS, Medical University of Vienna, Vienna, Austria
- Complexity Science Hub Vienna, Vienna, Austria
| | - Peter Klimek
- Section for Science of Complex Systems, CeMSIIS, Medical University of Vienna, Vienna, Austria
- Complexity Science Hub Vienna, Vienna, Austria
| | - Alexandra Kautzky-Willer
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, Vienna, Austria
- Gender Institute, Gars am Kamp, Austria
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Racette BA, Nelson G, Dlamini WW, Prathibha P, Turner JR, Ushe M, Checkoway H, Sheppard L, Nielsen SS. Severity of parkinsonism associated with environmental manganese exposure. Environ Health 2021; 20:27. [PMID: 33722243 PMCID: PMC7962371 DOI: 10.1186/s12940-021-00712-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/03/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND Exposure to occupational manganese (Mn) is associated with neurotoxic brain injury, manifesting primarily as parkinsonism. The association between environmental Mn exposure and parkinsonism is unclear. To characterize the association between environmental Mn exposure and parkinsonism, we performed population-based sampling of residents older than 40 in Meyerton, South Africa (N = 621) in residential settlements adjacent to a large Mn smelter and in a comparable non-exposed settlement in Ethembalethu, South Africa (N = 95) in 2016-2020. METHODS A movement disorders specialist examined all participants using the Unified Parkinson Disease Rating Scale motor subsection part 3 (UPDRS3). Participants also completed an accelerometry-based kinematic test and a grooved pegboard test. We compared performance on the UPDRS3, grooved pegboard, and the accelerometry-based kinematic test between the settlements using linear regression, adjusting for covariates. We also measured airborne PM2.5-Mn in the study settlements. RESULTS Mean PM2.5-Mn concentration at a long-term fixed site in Meyerton was 203 ng/m3 in 2016-2017 - approximately double that measured at two other neighborhoods in Meyerton. The mean Mn concentration in Ethembalethu was ~ 20 times lower than that of the long-term Meyerton site. UPDRS3 scores were 6.6 (CI 5.2, 7.9) points higher in Meyerton than Ethembalethu residents. Mean angular velocity for finger-tapping on the accelerometry-based kinematic test was slower in Meyerton than Ethembalethu residents [dominant hand 74.9 (CI 48.7, 101.2) and non-dominant hand 82.6 (CI 55.2, 110.1) degrees/second slower]. Similarly, Meyerton residents took longer to complete the grooved pegboard, especially for the non-dominant hand (6.9, CI -2.6, 16.3 s longer). CONCLUSIONS Environmental airborne Mn exposures at levels substantially lower than current occupational exposure thresholds in the United States may be associated with clinical parkinsonism.
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Affiliation(s)
- Brad A. Racette
- Department of Neurology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8111, 63110 St. Louis, Missouri, USA
- School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, 2193 Parktown, South Africa
| | - Gill Nelson
- School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, 2193 Parktown, South Africa
- Research Department of Infection & Population Health, UCL Institute for Global Health, University College London, London, UK
| | - Wendy W. Dlamini
- Department of Neurology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8111, 63110 St. Louis, Missouri, USA
| | - Pradeep Prathibha
- Department of Energy, Environmental, and Chemical Engineering, Washington University, Campus Box 1180, One Brookings Drive, 63130 St. Louis, Missouri, USA
| | - Jay R. Turner
- Department of Energy, Environmental, and Chemical Engineering, Washington University, Campus Box 1180, One Brookings Drive, 63130 St. Louis, Missouri, USA
| | - Mwiza Ushe
- Department of Neurology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8111, 63110 St. Louis, Missouri, USA
| | - Harvey Checkoway
- Department of Family Medicine & Public Health, University of California, 9500 Gilman Drive, # 0725, La Jolla, 92093-0725 San Diego, California USA
| | - Lianne Sheppard
- Departments of Biostatistics and Environmental and Occupational Health Sciences, University of Washington, Box 357232, Washington, 98195 Seattle, USA
| | - Susan Searles Nielsen
- Department of Neurology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8111, 63110 St. Louis, Missouri, USA
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Chen Y, Sun X, Lin Y, Zhang Z, Gao Y, Wu IX. Non-Genetic Risk Factors for Parkinson's Disease: An Overview of 46 Systematic Reviews. JOURNAL OF PARKINSON'S DISEASE 2021; 11:919-935. [PMID: 33814465 PMCID: PMC8461677 DOI: 10.3233/jpd-202521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 03/03/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Numerous systematic reviews (SRs) and meta-analyses on non-genetic risk factors for Parkinson's disease (PD) development have been published with inconsistent conclusions. OBJECTIVE This overview of SRs aimed to summarize evidence on non-genetic factors for the development of PD from the published SRs, and explore the reasons behind the conflicting results. METHODS Three international databases were searched for SRs with meta-analyses summarized evidence on non-genetic factors for PD development. The Assessing the Methodological Quality of Systematic Reviews 2 tool was used to appraise the methodological quality of included SRs. Pooled effect estimations were extracted from each meta-analysis. RESULTS Forty-six SRs covered six categories, and more than 80 factors were included in this overview. Thirty-nine SRs (84.7%) were judged to be of critically low methodological quality. Evidence from prospective studies showed that physical activity, smoking, coffee, caffeine, tea, fat intake, ibuprofen use, calcium channel blocker use, statin use, thiazolidinediones, and high serum urate levels significantly reduced the risk of PD, while dairy intake, diabetes, hormone replacement therapy, depression, mood disorder, bipolar disorder, and aspirin use significantly increased the risk of PD. Differences in study designs (e.g., cohort studies, case-control studies) accounted for the conflicting results among included SRs. CONCLUSION Modifiable lifestyle factors such as physical activity and tea and coffee drinking may reduce the risk of PD, which may offer PD prevention strategies and hypotheses for future research. However, the designs of primary studies on PD risk factors and related SRs need to be improved and harmonized.
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Affiliation(s)
- Yancong Chen
- Xiangya School of Public Health, Central South University, Changsha, China
| | - Xuemei Sun
- Xiangya School of Public Health, Central South University, Changsha, China
| | - Yali Lin
- Xiangya School of Public Health, Central South University, Changsha, China
| | - Zixuan Zhang
- Xiangya School of Public Health, Central South University, Changsha, China
| | - Yinyan Gao
- Xiangya School of Public Health, Central South University, Changsha, China
| | - Irene X.Y. Wu
- Xiangya School of Public Health, Central South University, Changsha, China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Changsha, China
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Heilbron K, Jensen MP, Bandres-Ciga S, Fontanillas P, Blauwendraat C, Nalls MA, Singleton AB, Smith GD, Cannon P, Noyce AJ. Unhealthy Behaviours and Risk of Parkinson's Disease: A Mendelian Randomisation Study. JOURNAL OF PARKINSON'S DISEASE 2021; 11:1981-1993. [PMID: 34275906 PMCID: PMC8609708 DOI: 10.3233/jpd-202487] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 06/28/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Tobacco smoking and alcohol intake have been identified in observational studies as potentially protective factors against developing Parkinson's disease (PD); the impact of body mass index (BMI) on PD risk is debated. Whether such epidemiological associations are causal remains unclear. Mendelian randomsation (MR) uses genetic variants to explore the effects of exposures on outcomes; potentially reducing bias from residual confounding and reverse causation. OBJECTIVE Using MR, we examined relationships between PD risk and three unhealthy behaviours: tobacco smoking, alcohol intake, and higher BMI. METHODS 19,924 PD cases and 2,413,087 controls were included in the analysis. We performed genome-wide association studies to identify single nucleotide polymorphisms associated with tobacco smoking, alcohol intake, and BMI. MR analysis of the relationship between each exposure and PD was undertaken using a split-sample design. RESULTS Ever-smoking reduced the risk of PD (OR 0.955; 95%confidence interval [CI] 0.921-0.991; p = 0.013). Higher daily alcohol intake increased the risk of PD (OR 1.125, 95%CI 1.025-1.235; p = 0.013) and a 1 kg/m2 higher BMI reduced the risk of PD (OR 0.988, 95%CI 0.979-0.997; p = 0.008). Sensitivity analyses did not suggest bias from horizontal pleiotropy or invalid instruments. CONCLUSION Using split-sample MR in over 2.4 million participants, we observed a protective effect of smoking on risk of PD. In contrast to observational data, alcohol consumption appeared to increase the risk of PD. Higher BMI had a protective effect on PD, but the effect was small.
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Affiliation(s)
| | - Melanie P. Jensen
- Preventive Neurology Unit, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
- Department of Cellular Pathology, Northwest London Pathology, Charing Cross Hospital, London, UK
| | - Sara Bandres-Ciga
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | | | - Cornelis Blauwendraat
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Mike A. Nalls
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Data Tecnica International, Glen Echo, MD, USA
| | - Andrew B. Singleton
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - George Davey Smith
- MRC Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK, UK
| | | | - Alastair J. Noyce
- Preventive Neurology Unit, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
- Department of Clinical and Movement Neurosciences, UCL Institute of Neurology, London, UK
| | - The 23andMe Research Team
- 23andMe, Inc., Sunnyvale, CA, USA
- Preventive Neurology Unit, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
- Department of Cellular Pathology, Northwest London Pathology, Charing Cross Hospital, London, UK
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Data Tecnica International, Glen Echo, MD, USA
- MRC Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK, UK
- Department of Clinical and Movement Neurosciences, UCL Institute of Neurology, London, UK
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Torti M, Fossati C, Casali M, De Pandis MF, Grassini P, Radicati FG, Stirpe P, Vacca L, Iavicoli I, Leso V, Ceppi M, Bruzzone M, Bonassi S, Stocchi F. Effect of family history, occupation and diet on the risk of Parkinson disease: A case-control study. PLoS One 2020; 15:e0243612. [PMID: 33332388 PMCID: PMC7746265 DOI: 10.1371/journal.pone.0243612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/25/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The aetiology of Parkinson's disease (PD) is still very controversial, with a peculiar lack of established risk factors or protective behavior. METHODS We carried out a case-control study of 634 idiopathic PD patients admitted from 2011 to 2015 to two hospitals located in central Italy and 532 controls matched by hospital, gender and age (± 5 years). The study questionnaire included questions on host factors, family history, residence, occupation and lifestyle. Odds ratios (ORs) for PD and 95% confidence intervals (CIs) were estimated with logistic regression, adjusting for actual and potential confounders. RESULTS A lower OR was observed in females (0.74; 95%CI:0.58-0.96), while older age classes showed a constantly increased risk for PD (p<0.005) starting from the class 65-69 years. Subjects who reported a first degree relative affected by PD showed a borderline increase which was more evident in those enrolled in the urban center of Rome (OR = 1.65; 95%CI: 1.09-2.50). Significant reduction of the risk was associated to current smoking (OR = 0.48; 95%CI: 0.24-0.54), and to vegetables consumption (p<0.03), while borderline increases were associated to meat and cold cut consumption. Occupational activities classified according to ISCO-08 categories did not show increased risk, while higher ORs' were found for pilots and physicians. CONCLUSIONS The results from this study confirmed the higher risk of PD in males and in elderly, and the inverse association with smoking habit. The possible etiological role of familial clustering, dietary habit, and some job tasks is suggested.
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Affiliation(s)
- Margherita Torti
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
- * E-mail:
| | - Chiara Fossati
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Miriam Casali
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
| | | | - Paola Grassini
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
| | - Fabiana Giada Radicati
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
| | - Paola Stirpe
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
| | - Laura Vacca
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
| | - Ivo Iavicoli
- Department of Public Health University of Naples Federico II, Naples, Italy
| | - Veruscka Leso
- Department of Public Health University of Naples Federico II, Naples, Italy
| | - Marcello Ceppi
- Unit of Clinical Epidemiology, Ospedale Policlinico San Martino, Genoa, Italy
| | - Marco Bruzzone
- Unit of Clinical Epidemiology, Ospedale Policlinico San Martino, Genoa, Italy
| | - Stefano Bonassi
- Unit of Clinical and Molecular Epidemiology, Institute for Research and Medical Care, San Raffaele Pisana, Rome, Italy
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, Rome, Italy
| | - Fabrizio Stocchi
- San Raffaele Pisana Institute for Research and Medical Care, Clinical Trial Center, Rome, Italy
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, Rome, Italy
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Yin W, Löf M, Pedersen NL, Sandin S, Fang F. Mediterranean Dietary Pattern at Middle Age and Risk of Parkinson's Disease: A Swedish Cohort Study. Mov Disord 2020; 36:255-260. [PMID: 33078857 PMCID: PMC7894345 DOI: 10.1002/mds.28314] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 12/15/2022] Open
Abstract
Background The Mediterranean diet has been proposed to protect against neurodegeneration. Objectives The aim of this study was to assess the association of adherence to Mediterranean dietary pattern (MDP) at middle age with risk for Parkinson's disease (PD) later in life. Method In a population‐based cohort of >47,000 Swedish women, information on diet was collected through a food frequency questionnaire during 1991–1992, from which adherence to MDP was calculated. We also collected detailed information on potential confounders. Clinical diagnosis of PD was ascertained from the Swedish National Patient Register through 2012. Results We observed an inverse association between adherence to MDP and PD, multivariable hazard ratio of 0.54 (95% confidence interval: 0.30–0.98), comparing high with low adherence. The association was noted primarily from age 65 years onward. One unit increase in the adherence score was associated with a 29% lower risk for PD at age ≥ 65 years (95% confidence interval: 0.57–0.89). Conclusion Higher adherence to a Mediterranean diet at middle age was associated with lower risk for PD. © 2020 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society
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Affiliation(s)
- Weiyao Yin
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Marie Löf
- Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.,Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Sven Sandin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Department of Psychiatry, Ichan School of Medicine, Mount Sinai, New York, New York, USA.,Seaver Autism Center for Research and Treatment at Mount Sinai, New York, New York, USA
| | - Fang Fang
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Kamal H, Tan GC, Ibrahim SF, Shaikh MF, Mohamed IN, Mohamed RMP, Hamid AA, Ugusman A, Kumar J. Alcohol Use Disorder, Neurodegeneration, Alzheimer's and Parkinson's Disease: Interplay Between Oxidative Stress, Neuroimmune Response and Excitotoxicity. Front Cell Neurosci 2020; 14:282. [PMID: 33061892 PMCID: PMC7488355 DOI: 10.3389/fncel.2020.00282] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022] Open
Abstract
Alcohol use disorder (AUD) has been associated with neurodegenerative diseases such as Alzheimer's and Parkinson's disease. Prolonged excessive alcohol intake contributes to increased production of reactive oxygen species that triggers neuroimmune response and cellular apoptosis and necrosis via lipid peroxidation, mitochondrial, protein or DNA damage. Long term binge alcohol consumption also upregulates glutamate receptors, glucocorticoids and reduces reuptake of glutamate in the central nervous system, resulting in glutamate excitotoxicity, and eventually mitochondrial injury and cell death. In this review, we delineate the following principles in alcohol-induced neurodegeneration: (1) alcohol-induced oxidative stress, (2) neuroimmune response toward increased oxidants and lipopolysaccharide, (3) glutamate excitotoxicity and cell injury, and (4) interplay between oxidative stress, neuroimmune response and excitotoxicity leading to neurodegeneration and (5) potential chronic alcohol intake-induced development of neurodegenerative diseases, including Alzheimer's and Parkinson's disease.
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Affiliation(s)
- Haziq Kamal
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Geok Chin Tan
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Siti Fatimah Ibrahim
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd. Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Selangor, Malaysia
| | - Isa Naina Mohamed
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rashidi M. Pakri Mohamed
- Department of Family Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Adila A. Hamid
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Jaya Kumar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Molsberry S, Bjornevik K, Hughes KC, Healy B, Schwarzschild M, Ascherio A. Diet pattern and prodromal features of Parkinson disease. Neurology 2020; 95:e2095-e2108. [PMID: 32817391 DOI: 10.1212/wnl.0000000000010523] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 04/28/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE To assess the relationship between diet pattern and prodromal Parkinson disease (PD) features. METHODS These analyses include 47,679 participants from the Nurses' Health Study and the Health Professionals Follow-up Study. Since 1986, both cohorts have collected dietary information every 4 years and calculated scores for adherence to different diet patterns, including the alternate Mediterranean diet (aMED) and the Alternative Healthy Eating Index (AHEI). In 2012, participants responded to questions regarding constipation and probable REM sleep behavior disorder. For a subset of 17,400 respondents to the 2012 questionnaire, 5 additional prodromal features of PD were assessed in 2014 to 2015. We used multinomial logistic regression to estimate the association between baseline (1986) diet pattern score quintiles and number of prodromal features (0, 1, 2, or ≥3) in 2012 to 2015. Additional analyses investigated the association between long-term adherence to these dietary patterns over 20 years and prodromal features suggestive of PD. RESULTS In a comparison of extreme aMED diet quintiles, the odds ratio for ≥3 vs 0 features was 0.82 (95% confidence interval [CI] 0.68-1.00, false discovery rate [FDR]-adjusted p trend = 0.03) at baseline and 0.67 (95% CI 0.54-0.83, FDR-p trend < 0.001) for long-term diet; results were equally strong for the association with AHEI scores. Higher adherence to these diets was inversely associated with individual features, including constipation, excessive daytime sleepiness, and depression. CONCLUSIONS The inverse association between these diet patterns and prodromal PD features is consistent with previous findings and suggests that adherence to a healthy diet may reduce the occurrence of nonmotor symptoms that often precede PD diagnosis.
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Affiliation(s)
- Samantha Molsberry
- From the Population Health Sciences Program (S.M.), Harvard University, Cambridge; Departments of Nutrition (K.B., K.C.H., A.A.) and Epidemiology (A.A.), Harvard T.H. Chan School of Public Health; Partners Multiple Sclerosis Center (B.H.), Brigham and Women's Hospital; Department of Neurology (M.S.), Massachusetts General Hospital; and Channing Division of Network Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA.
| | - Kjetil Bjornevik
- From the Population Health Sciences Program (S.M.), Harvard University, Cambridge; Departments of Nutrition (K.B., K.C.H., A.A.) and Epidemiology (A.A.), Harvard T.H. Chan School of Public Health; Partners Multiple Sclerosis Center (B.H.), Brigham and Women's Hospital; Department of Neurology (M.S.), Massachusetts General Hospital; and Channing Division of Network Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Katherine C Hughes
- From the Population Health Sciences Program (S.M.), Harvard University, Cambridge; Departments of Nutrition (K.B., K.C.H., A.A.) and Epidemiology (A.A.), Harvard T.H. Chan School of Public Health; Partners Multiple Sclerosis Center (B.H.), Brigham and Women's Hospital; Department of Neurology (M.S.), Massachusetts General Hospital; and Channing Division of Network Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Brian Healy
- From the Population Health Sciences Program (S.M.), Harvard University, Cambridge; Departments of Nutrition (K.B., K.C.H., A.A.) and Epidemiology (A.A.), Harvard T.H. Chan School of Public Health; Partners Multiple Sclerosis Center (B.H.), Brigham and Women's Hospital; Department of Neurology (M.S.), Massachusetts General Hospital; and Channing Division of Network Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Michael Schwarzschild
- From the Population Health Sciences Program (S.M.), Harvard University, Cambridge; Departments of Nutrition (K.B., K.C.H., A.A.) and Epidemiology (A.A.), Harvard T.H. Chan School of Public Health; Partners Multiple Sclerosis Center (B.H.), Brigham and Women's Hospital; Department of Neurology (M.S.), Massachusetts General Hospital; and Channing Division of Network Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Alberto Ascherio
- From the Population Health Sciences Program (S.M.), Harvard University, Cambridge; Departments of Nutrition (K.B., K.C.H., A.A.) and Epidemiology (A.A.), Harvard T.H. Chan School of Public Health; Partners Multiple Sclerosis Center (B.H.), Brigham and Women's Hospital; Department of Neurology (M.S.), Massachusetts General Hospital; and Channing Division of Network Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA
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Han G, Han J, Han K, Youn J, Chung TY, Lim DH. Visual Acuity and Development of Parkinson's Disease: A Nationwide Cohort Study. Mov Disord 2020; 35:1532-1541. [PMID: 32710579 DOI: 10.1002/mds.28184] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Visual dysfunction in Parkinson's disease (PD) is well known from previous reports, but the association of visual deficits with PD development has not yet been studied. The aim of this research was to evaluate the association of visual acuity with the risk of PD occurrence using a nationwide cohort in South Korea. METHODS Among the population participating in the National Health Insurance Service, which is mandatory for all South Koreans, 6,055,113 individuals who had taken part in health screening programs between January 1, 2009, and December 31, 2012, were included in the cohort and followed until December 31, 2017. The hazard ratio was calculated for groups with high and low visual acuity using multivariate adjusted Cox regression analysis. RESULTS A total of 22,872 subjects (0.38%) were diagnosed as having PD within the study period. Groups with low visual acuity showed a higher incidence of PD compared with groups with good visual acuity. Compared with the reference group (visual acuity better than 20/20), the adjusted hazard ratios and 95% confidence intervals (CIs) was 1.315 (95% CI, 1.261-1.371) for the group with visual acuity between 20/20 and 20/60, 1.357 (95% CI, 1.277-1.442) for the group with visual acuity between 20/60 and 10/100, and 1.267 (95% CI, 1.193-1.343) for the group with visual acuity less than 10/100. CONCLUSIONS Low visual acuity was associated with the development of PD. This suggests that visual dysfunction is one of the premotor symptoms for PD development. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Gyule Han
- Department of Ophthalmology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Jisang Han
- Department of Ophthalmology, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jinyoung Youn
- Department of Neurology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Tae-Young Chung
- Department of Ophthalmology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Dong Hui Lim
- Department of Ophthalmology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
- Department of Clinical Research Design & Evaluation, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea
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Peters S, Gallo V, Vineis P, Middleton LT, Forsgren L, Sacerdote C, Sieri S, Kyrozis A, Chirlaque M, Zamora‐Ros R, Hansson O, Petersson J, Katzke V, Kühn T, Mokoroa O, Masala G, Ardanaz E, Panico S, Bergmann MM, Key TJ, Weiderpass E, Ferrari P, Vermeulen R. Alcohol Consumption and Risk of Parkinson's Disease: Data From a Large Prospective European Cohort. Mov Disord 2020; 35:1258-1263. [PMID: 32357270 PMCID: PMC7496254 DOI: 10.1002/mds.28039] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/30/2020] [Accepted: 03/03/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) etiology is not well understood. Reported inverse associations with smoking and coffee consumption prompted the investigation of alcohol consumption as a risk factor, for which evidence is inconclusive. OBJECTIVE To assess the associations between alcohol consumption and PD risk. METHODS Within NeuroEPIC4PD, a prospective European population-based cohort, 694 incident PD cases were ascertained from 209,998 PD-free participants. Average alcohol consumption at different time points was self-reported at recruitment. Cox regression hazard ratios were estimated for alcohol consumption and PD occurrence. RESULTS No associations between baseline or lifetime total alcohol consumption and PD risk were observed. Men with moderate lifetime consumption (5-29.9 g/day) were at ~50% higher risk compared with light consumption (0.1-4.9 g/day), but no linear exposure-response trend was observed. Analyses by beverage type also revealed no associations with PD. CONCLUSION Our data reinforce previous findings from prospective studies showing no association between alcohol consumption and PD risk. © 2020 The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Susan Peters
- Institute for Risk Assessment SciencesUtrecht UniversityUtrechtThe Netherlands
- Department of NeurologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Valentina Gallo
- Centre for Primary Care and Public HealthQueen Mary University of LondonLondonUK
| | - Paolo Vineis
- School of Public HealthImperial College LondonLondonUK
| | | | - Lars Forsgren
- Department of Clinical Sciences, NeurosciencesUmeå UniversityUmeåSweden
| | - Carlotta Sacerdote
- Unit of Cancer EpidemiologyCittà della Salute e della Scienza University‐HospitalTurinItaly
- Center for Cancer PreventionTurinItaly
| | - Sabina Sieri
- Epidemiology and Prevention Unit, Fondazione Istitutodi Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Nazionale dei TumoriMilanItaly
| | - Andreas Kyrozis
- Hellenic Health FoundationAthensGreece
- First Department of NeurologyNational and Kapodistrian University of AthensAthensGreece
| | - María‐Dolores Chirlaque
- Department of EpidemiologyRegional Health Council, Instituto Murciano de Investigación Biosanitaria (IMIB)‐ArrixacaMurciaSpain
- Centrode Investigación Biomédica en Red (CIBER) in Epidemiology and Public HealthMadridSpain
- Department of Health and Social Sciences, Universidad de MurciaMurciaSpain
| | - Raul Zamora‐Ros
- Unit of Nutrition and Cancer, Epidemiology Research ProgramCatalan Institute of Oncology, Bellvitge Biomedical Research Institute, Hospitalet de LlobregatBarcelonaSpain
| | - Oskar Hansson
- Clinical Memory Research Unit, Department of Clinical SciencesLund UniversityMalmöSweden
- Memory ClinicSkåne University HospitalLundSweden
| | - Jesper Petersson
- Department of Neurology, Skåne University HospitalLund UniversityMalmöSweden
| | | | - Tilman Kühn
- German Cancer Research CentreHeidelbergGermany
| | - Olatz Mokoroa
- Public Health Division of GipuzkoaBioDonostia Research InstituteSan SebastianSpain
| | - Giovanna Masala
- Cancer Risk Factors and Life‐Style Epidemiology UnitInstitute for Cancer Research, Prevention and Clinical Network–Cancer Research and Prevention Institute (ISPRO)FlorenceItaly
| | - Eva Ardanaz
- Centrode Investigación Biomédica en Red (CIBER) in Epidemiology and Public HealthMadridSpain
- Navarra Public Health InstitutePamplonaSpain
- Institutode Investigación Sanitaria de Navarra (IdiSNA)Navarra Institute for Health ResearchPamplonaSpain
| | - Salvatore Panico
- Dipartimento di Medicina Clinica e ChirurgiaFederico II University NaplesNaplesItaly
| | | | - Timothy J. Key
- Nuffield Department of Population HealthUniversity of OxfordOxfordUK
| | | | | | - Roel Vermeulen
- Institute for Risk Assessment SciencesUtrecht UniversityUtrechtThe Netherlands
- School of Public HealthImperial College LondonLondonUK
- Julius Center for Health Sciences and Primary CareUniversity Medical Center UtrechtUtrechtThe Netherlands
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Bandres-Ciga S, Diez-Fairen M, Kim JJ, Singleton AB. Genetics of Parkinson's disease: An introspection of its journey towards precision medicine. Neurobiol Dis 2020; 137:104782. [PMID: 31991247 PMCID: PMC7064061 DOI: 10.1016/j.nbd.2020.104782] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/15/2020] [Accepted: 01/24/2020] [Indexed: 12/15/2022] Open
Abstract
A substantial proportion of risk for Parkinson's disease (PD) is driven by genetics. Progress in understanding the genetic basis of PD has been significant. So far, highly-penetrant rare genetic alterations in SNCA, LRRK2, VPS35, PRKN, PINK1, DJ-1 and GBA have been linked with typical familial PD and common genetic variability at 90 loci have been linked to risk for PD. In this review, we outline the journey thus far of PD genetics, highlighting how significant advances have improved our knowledge of the genetic basis of PD risk, onset and progression. Despite remarkable progress, our field has yet to unravel how genetic risk variants disrupt biological pathways and molecular networks underlying the pathobiology of the disease. We highlight that currently identified genetic risk factors only represent a fraction of the likely genetic risk for PD. Identifying the remaining genetic risk will require us to diversify our efforts, performing genetic studies across different ancestral groups. This work will inform us on the varied genetic basis of disease across populations and also aid in fine mapping discovered loci. If we are able to take this course, we foresee that genetic discoveries in PD will directly influence our ability to predict disease and aid in defining etiological subtypes, critical steps for the implementation of precision medicine for PD.
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Affiliation(s)
- Sara Bandres-Ciga
- Molecular Genetics Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892, USA; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada 18016, Spain.
| | - Monica Diez-Fairen
- Molecular Genetics Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892, USA; Fundació Docència i Recerca Mútua Terrassa and Movement Disorders Unit, Department of Neurology, University Hospital Mútua Terrassa, Terrassa 08221, Barcelona, Spain
| | - Jonggeol Jeff Kim
- Molecular Genetics Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892, USA
| | - Andrew B Singleton
- Molecular Genetics Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892, USA.
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Peng B, Yang Q, B Joshi R, Liu Y, Akbar M, Song BJ, Zhou S, Wang X. Role of Alcohol Drinking in Alzheimer's Disease, Parkinson's Disease, and Amyotrophic Lateral Sclerosis. Int J Mol Sci 2020; 21:ijms21072316. [PMID: 32230811 PMCID: PMC7177420 DOI: 10.3390/ijms21072316] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/24/2020] [Accepted: 03/24/2020] [Indexed: 02/08/2023] Open
Abstract
Neurodegenerative diseases, including Alzheimer’s disease (AD), Parkinson’s disease (PD) and amyotrophic lateral sclerosis (ALS), increase as the population ages around the world. Environmental factors also play an important role in most cases. Alcohol consumption exists extensively and it acts as one of the environmental factors that promotes these neurodegenerative diseases. The brain is a major target for the actions of alcohol, and heavy alcohol consumption has long been associated with brain damage. Chronic alcohol intake leads to elevated glutamate-induced excitotoxicity, oxidative stress and permanent neuronal damage associated with malnutrition. The relationship and contributing mechanisms of alcohol with these three diseases are different. Epidemiological studies have reported a reduction in the prevalence of Alzheimer’s disease in individuals who drink low amounts of alcohol; low or moderate concentrations of ethanol protect against β-amyloid (Aβ) toxicity in hippocampal neurons; and excessive amounts of ethanol increase accumulation of Aβ and Tau phosphorylation. Alcohol has been suggested to be either protective of, or not associated with, PD. However, experimental animal studies indicate that chronic heavy alcohol consumption may have dopamine neurotoxic effects through the induction of Cytochrome P450 2E1 (CYP2E1) and an increase in the amount of α-Synuclein (αSYN) relevant to PD. The findings on the association between alcohol consumption and ALS are inconsistent; a recent population-based study suggests that alcohol drinking seems to not influence the risk of developing ALS. Additional research is needed to clarify the potential etiological involvement of alcohol intake in causing or resulting in major neurodegenerative diseases, which will eventually lead to potential therapeutics against these alcoholic neurodegenerative diseases.
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Affiliation(s)
- Bin Peng
- Departments of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Qiang Yang
- Hubei Provincial Key Lab for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute, Daye 435100, China
| | - Rachna B Joshi
- Departments of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Internal Medicine, Stafford Medical, PA. 1364 NJ-72, Manahawkin, NJ 08050, USA
| | - Yuancai Liu
- Hubei Provincial Key Lab for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute, Daye 435100, China
| | - Mohammed Akbar
- Division of Neuroscience & Behavior, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD 20852, USA;
| | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD 20892, USA;
| | - Shuanhu Zhou
- Departments of Orthopedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Correspondence: (S.Z.); (X.W.); Tel.: 1-617-732-5398 (S.Z.); 1-617-732-4186 (X.W.)
| | - Xin Wang
- Departments of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Correspondence: (S.Z.); (X.W.); Tel.: 1-617-732-5398 (S.Z.); 1-617-732-4186 (X.W.)
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Anemia and the risk of Parkinson's disease in Korean older adults: A nationwide population-based study. Sci Rep 2020; 10:4268. [PMID: 32144328 PMCID: PMC7060334 DOI: 10.1038/s41598-020-61153-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 02/09/2020] [Indexed: 11/18/2022] Open
Abstract
Evidence of the association between anemia and risk of PD (Parkinson’s disease) have been accumulating. This study aimed to examine the relationship between anemia and risk of PD in Korean older adults. Korean adults aged 50 years or older who participated in the Korean National Screening Program (n = 12,342,278) between 2009 and 2013 were followed until 2015. Cox proportional hazards regression models were used to calculate the hazard ratio (HR) of PD, and participants were followed for a mean period of 5.0 years. At the end of follow-up, 3,844 adults were diagnosed with PD. After adjusting for potential confounders, participants with anemia had decreased risk of PD compared to adults without anemia (adjusted HR (aHR) 0.894, 95% CI: 0.809–0.989). Furthermore, aHR of PD was 0.698 (95% CI: 0.546–0.891) in moderate to severe anemia and 0.938 (95% CI: 0.843–1.044) in mild anemia. The protective effect of anemia was also more profound in men (aHR 0.888, 95% CI: 0.774–1.02) than in women (aHR 0.905, 95% CI: 0.782–1.048). In conclusion, anemia was associated with lower risk of PD, particularly for patients with moderate to severe anemia. Our study suggests that further studies may be needed to clarify the relationship between anemia and PD.
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Kim IY, Yang TO, Heath AK, Simpson RF, Reeves GK, Green J, Floud S, Brown A, Hunter DJ, Beral V, Sweetland S. Alcohol intake and Parkinson's disease risk in the million women study. Mov Disord 2020; 35:443-449. [PMID: 31769113 PMCID: PMC7155013 DOI: 10.1002/mds.27933] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 10/17/2019] [Accepted: 11/06/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Alcohol intake may be associated with a lower risk of Parkinson's disease (PD), but findings from previous studies have been inconclusive. OBJECTIVE To determine the association between alcohol intake and PD risk in the Million Women Study, a large, prospective study of women in the UK. METHODS Between 1996 and 2001, approximately 1.3 million women in the UK, mean age 56 (standard deviation, 5) years, were recruited into the Million Women Study. Information on alcohol intake, lifestyle factors, and medical history was collected at recruitment by questionnaire. Information on incident cases of PD was ascertained by record linkage to national hospital admission records and death registrations. We estimated multivariable-adjusted relative risks and corresponding 95% confidence intervals using Cox proportional hazards models according to categories of alcohol intake. RESULTS During an average of 17.9 years of follow-up, 11,009 women had a new record of PD among 1,309,267 women. In drinkers, the multivariable-adjusted relative risk comparing women who drank more than 14 drinks of alcohol per week with women who drank 1 to 2 drinks of alcohol per week was 0.99 (95% confidence interval: 0.90, 1.10). Results did not materially change after excluding the first 10 years of follow-up (relative riskadjusted = 1.01; 95% confidence interval: 0.90, 1.13). There were no significant trends in alcohol-related PD risk among never smokers. Additionally, examining this association by type of alcohol intake also yielded null findings. CONCLUSION These results do not support an association between alcohol intake and PD risk in women. © 2019 The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Iris Y. Kim
- Department of EpidemiologyHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - TienYu Owen Yang
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Alicia K. Heath
- School of Public HealthImperial College LondonLondonUnited Kingdom
| | - Rachel F. Simpson
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Gillian K. Reeves
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Jane Green
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Sarah Floud
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Anna Brown
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - David J. Hunter
- Department of EpidemiologyHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Valerie Beral
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Siân Sweetland
- Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
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What and How Can Physical Activity Prevention Function on Parkinson's Disease? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:4293071. [PMID: 32215173 PMCID: PMC7042542 DOI: 10.1155/2020/4293071] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/28/2020] [Accepted: 01/30/2020] [Indexed: 12/15/2022]
Abstract
Aim This study was aimed at investigating the effects and molecular mechanisms of physical activity intervention on Parkinson's disease (PD) and providing theoretical guidance for the prevention and treatment of PD. Methods Four electronic databases up to December 2019 were searched (PubMed, Springer, Elsevier, and Wiley database), 176 articles were selected. Literature data were analyzed by the logic analysis method. Results (1) Risk factors of PD include dairy products, pesticides, traumatic brain injury, and obesity. Protective factors include alcohol, tobacco, coffee, black tea, and physical activity. (2) Physical activity can reduce the risk and improve symptoms of PD and the beneficial forms of physical activity, including running, dancing, traditional Chinese martial arts, yoga, and weight training. (3) Different forms of physical activity alleviate the symptoms of PD through different mechanisms, including reducing the accumulation of α-syn protein, inflammation, and oxidative stress, while enhancing BDNF activity, nerve regeneration, and mitochondrial function. Conclusion Physical activity has a positive impact on the prevention and treatment of PD. Illustrating the molecular mechanism of physical activity-induced protective effect on PD is an urgent need for improving the efficacy of PD therapy regimens in the future.
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Kim R, Yoo D, Jung YJ, Han K, Lee JY. Sex differences in smoking, alcohol consumption, and risk of Parkinson's disease: A nationwide cohort study. Parkinsonism Relat Disord 2020; 71:60-65. [DOI: 10.1016/j.parkreldis.2019.12.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/15/2019] [Accepted: 12/08/2019] [Indexed: 10/25/2022]
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Big health data and Parkinson's disease epidemiology: Challenges and opportunities. Parkinsonism Relat Disord 2020; 71:58-59. [DOI: 10.1016/j.parkreldis.2020.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 01/05/2020] [Indexed: 11/19/2022]
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Nutritional Risk Factors, Microbiota and Parkinson's Disease: What Is the Current Evidence? Nutrients 2019; 11:nu11081896. [PMID: 31416163 PMCID: PMC6722832 DOI: 10.3390/nu11081896] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 07/31/2019] [Accepted: 08/07/2019] [Indexed: 02/06/2023] Open
Abstract
Parkinson’s disease (PD) is a frequent neurodegenerative disease among elderly people. Genetic and underlying environmental factors seem to be involved in the pathogenesis of PD related to degeneration of dopaminergic neurons in the striatum. In previous experimental researches oxidative stress, mitochondrial dysfunction, homocysteine, and neuroinflammation have been reported as potential mechanisms. Among environmental factors, nutrition is one of the most investigated areas as it is a potentially modifiable factor. The purpose of this review is to provide current knowledge regarding the relation between diet and PD risk. We performed a comprehensive review including the most relevant studies from the year 2000 onwards including prospective studies, nested case-control studies, and meta-analysis. Among dietary factors we focused on specific nutrients and food groups, alcoholic beverages, uric acid, and dietary patterns. Furthermore, we included studies on microbiota as recent findings have shown a possible impact on neurodegeneration. As a conclusion, there are still many controversies regarding the relationship between PD and diet which, beside methodological differences among studies, may be due to underlying genetic and gender-specific factors. However, some evidence exists regarding a potential protective effect of uric acid, poly-unsaturated fatty acids, coffee, and tea but mainly in men, whereas dairy products, particularly milk, might increase PD risk through contaminant mediated effect.
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Marras C, Canning CG, Goldman SM. Environment, lifestyle, and Parkinson's disease: Implications for prevention in the next decade. Mov Disord 2019; 34:801-811. [DOI: 10.1002/mds.27720] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/17/2019] [Accepted: 04/26/2019] [Indexed: 12/14/2022] Open
Affiliation(s)
- Connie Marras
- The Edmond J. Safra Program in Parkinson's DiseaseToronto Western Hospital Toronto Ontario Canada
| | - Colleen G. Canning
- Discipline of Physiotherapy, Faculty of Health SciencesThe University of Sydney Sydney Australia
| | - Samuel M. Goldman
- School of MedicineUniversity of California–San Francisco San Francisco California USA
- Division of Occupational and Environmental MedicineSan Francisco Veterans Affairs Health Care System San Francisco California USA
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Li Z, Song A, Yu H. Interaction between toll-like receptor 4 (TLR4) gene and alcohol drinking on Parkinson’s disease risk in Chinese Han population. J Clin Neurosci 2019; 62:128-132. [DOI: 10.1016/j.jocn.2018.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 10/18/2018] [Accepted: 12/11/2018] [Indexed: 11/25/2022]
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He L, Lin S, Pan H, Shen R, Wang M, Liu Z, Sun S, Tan Y, Wang Y, Chen S, Ding J. Lack of Association Between DJ-1 Gene Promoter Polymorphism and the Risk of Parkinson's Disease. Front Aging Neurosci 2019; 11:24. [PMID: 30863299 PMCID: PMC6399152 DOI: 10.3389/fnagi.2019.00024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 01/28/2019] [Indexed: 02/04/2023] Open
Abstract
Low DJ-1 protein level caused by DJ-1 gene mutation leads to autosomal recessive Parkinson's disease (PD) due to impaired antioxidative activity. In sporadic PD patients, although mutations were rarely found, lower DJ-1 protein level was also reported. Dysregulation of DJ-1 gene expression might contribute to low DJ-1 protein level. Since the promoter is the most important element to initiate gene expression, whether polymorphisms in the DJ-1 promoter result in the dysregulation of gene expression, thus leading to low protein level and causing PD, is worth exploring. The DJ-1 promoter region was sequenced in a Chinese cohort to evaluate possible links between DJ-1 promoter polymorphisms, PD risk and clinical phenotypes. Dual-luciferase reporter assay was conducted to evaluate the influence of promoter polymorphisms on DJ-1 transcriptional activity. Related information in an existing genome-wide association studies (GWAS) database were looked up, meta-analysis of the present study and other previous reports was conducted, and expression quantitative trait loci (eQTL) analysis was performed to further explore the association. Three single nucleotide polymorphisms (SNPs) (rs17523802, rs226249, and rs35675666) and one 18 bp deletion (rs200968609) were observed in our cohort. However, there was no significant association between the four detected genetic variations and the risk of PD either in allelic or genotype model, in single-point analysis or haplotype analysis. This was supported by the meta-analysis of this study and previous reports as well as that of GWAS database PDGene. Dual luciferase reporter assay suggested these promoter polymorphisms had no influence on DJ-1 transcriptive activity, which is consistent with the eQTL analysis results using the data from GTEx database. Thus, DJ-1 promoter polymorphisms may play little role in the dysregulation of DJ-1 expression and PD susceptibility in sporadic PD.
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Affiliation(s)
- Lu He
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Suzhen Lin
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Pan
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Laboratory of Neurodegenerative Diseases, Institute of Health Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruinan Shen
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengyan Wang
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhihao Liu
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shiyao Sun
- The University of Melbourne, Melbourne, VIC, Australia
| | - Yuyan Tan
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Wang
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shengdi Chen
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Laboratory of Neurodegenerative Diseases, Institute of Health Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianqing Ding
- Department of Neurology, Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Hu CY, Fang Y, Li FL, Dong B, Hua XG, Jiang W, Zhang H, Lyu Y, Zhang XJ. Association between ambient air pollution and Parkinson's disease: Systematic review and meta-analysis. ENVIRONMENTAL RESEARCH 2019; 168:448-459. [PMID: 30391837 DOI: 10.1016/j.envres.2018.10.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 09/29/2018] [Accepted: 10/03/2018] [Indexed: 06/08/2023]
Abstract
Air pollution has been evaluated as a possible risk factor for Parkinson's disease (PD), but, the present results are inconsistent and have not been combined. We performed a systematic review and meta-analysis to estimate the association between long-term exposure to ambient air pollution and PD, given the nature of disease etiology. A total of 10 studies were identified by searching Web of Science, Science Direct, and PubMed before October 2017. We found a significantly increased risk of PD with 10 parts per billion (ppb) increase in nitrogen oxides (NOx) exposure (relative risk (RR) = 1.06; 95% confidence interval (CI): 1.04, 1.09). The pooled RR for the association between carbon monoxide (CO) exposure, 1 parts per million (ppm) increment, and the risk of PD was 1.65 (95% CI: 1.10, 2.48). The pooled RRs for the association between nitrogen dioxide (NO2) and ozone (O3) exposure per 1 ppb increment, and the risk of PD were 1.01 (95% CI: 1.00, 1.03) and 1.01 (95% CI: 1.00, 1.02), respectively. There was a significant heterogeneity in the meta-analysis for fine particulate matter (PM2.5), NO2, sulfur dioxide (SO2), and CO. We concluded that NO2, NOx, CO and O3 exposure were associated with an increased risk of PD, although there is high risk of bias. The dose-response effects evaluated by high-quality studies are needed. Researches should be expanded to low- and/or middle- income countries where indoor and outdoor air pollution are high. CAPSULE: Long-term exposure to ambient NO2, NOx, CO and O3 can increase the risk of Parkinson's disease.
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Affiliation(s)
- Cheng-Yang Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China
| | - Yuan Fang
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, 138# Yi Xue Yuan Road, Shanghai 200032, China
| | - Feng-Li Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China
| | - Bao Dong
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China
| | - Xiao-Guo Hua
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China
| | - Wen Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China
| | - Heng Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China
| | - Yong Lyu
- Lu'an City Center for Disease Control and Prevention, Middle Road of Gao Cheng, Lu'an 237000, China
| | - Xiu-Jun Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81# Meishan Road, Hefei 230032, China.
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Association between the missense alcohol dehydrogenase rs1229984T variant with the risk for Parkinson's disease in women. J Neurol 2018; 266:346-352. [PMID: 30483881 DOI: 10.1007/s00415-018-9136-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND/OBJECTIVE Several meta-analyses including retrospective case-control studies have shown that the risk of developing Parkinson's disease (PD) correlates inversely with alcohol consumption and (PD), although the results of prospective longitudinal studies are far from being conclusive. The reasons for this inverse association are not well-known. Because alcohol dehydrogenase is one of the most important alcohol-detoxification enzymes, we tried to replicate a putative association of the risk of developing PD with two missense gene variations affecting the alcohol dehydrogenase 1B (ADH1B) gene (one of them related with aversive effects to alcohol). METHODS In a cohort composed of 629 PD patients and 865 age- and gender-matched healthy individuals, we analyzed genotypes and allele frequencies for two common missense ADH1B single nucleotide polymorphisms (SNPs), namely rs1229984 (His48Arg) and rs6413413 (Thr60Ser) using specifically designed TaqMan assays. RESULTS The frequency of individuals carrying rs1229984T alleles in homozygosity or in heterozygosity was higher in PD than in controls in the whole study cohort (P < 0.001 and P = 0.005, respectively), and in women (P < 0.001 and P < 0.001, respectively). The genotypes for rs6413413 were similar in PD patients and control subjects. Age at onset of PD patients was not statistically related to rs1229984 or rs6413413 genotypes. CONCLUSIONS The missense variant rs1229984T is statistically associated with the risk of developing PD mainly in women, which could explain differences in alcohol consumption in this gender.
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