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Lei J, He W, Liu Y, Zhang Q, Liu Y, Ou Q, Wu X, Li F, Liao J, Xiao Y. The potential protective role of Parkinson's disease against hypothyroidism: co-localisation and bidirectional Mendelian randomization study. Front Aging Neurosci 2024; 16:1377719. [PMID: 38808034 PMCID: PMC11130391 DOI: 10.3389/fnagi.2024.1377719] [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: 01/28/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
Background The association between hypothyroidism and Parkinson's disease (PD) has sparked intense debate in the medical community due to conflicting study results. A better understanding of this association is crucial because of its potential implications for both pathogenesis and treatment strategies. Methods To elucidate this complex relationship, we used Bayesian co-localisation (COLOC) and bidirectional Mendelian randomization (MR) analysis. COLOC was first used to determine whether hypothyroidism and PD share a common genetic basis. Subsequently, genetic variants served as instrumental variables in a bidirectional MR to explore causal interactions between these conditions. Results COLOC analysis revealed no shared genetic variants between hypothyroidism and PD, with a posteriori probability of hypothesis 4 (PPH4) = 0.025. Furthermore, MR analysis indicated that hypothyroidism does not have a substantial causal effect on PD (OR = 0.990, 95% CI = 0.925, 1.060, p = 0.774). Conversely, PD appears to have a negative causal effect on hypothyroidism (OR = 0.776, 95% CI = 0.649, 0.928, p = 0.005). Conclusion Our findings suggest the absence of shared genetic variants between hypothyroidism and PD. Interestingly, PD may inversely influence the risk of developing hypothyroidism, a finding that may inform future research and clinical approaches.
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Affiliation(s)
- Jiang Lei
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wenxuan He
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yao Liu
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qinxin Zhang
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yingyao Liu
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qican Ou
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xianli Wu
- Department of Neurology, The First People’s Hospital of Nanning, Nanning, China
| | - Fenglin Li
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jiajia Liao
- Department of Rehabilitation Medicine, Jiangbin Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Yousheng Xiao
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Zhao J, Zhou SQ, Chen YX, Pan X, Chen YZ, Zhuang YG. Causal Relationship between Mitochondrial-Associated Proteins and Sepsis in ICU Patients: A Mendelian Randomization Study. ACS OMEGA 2024; 9:8457-8463. [PMID: 38405532 PMCID: PMC10882587 DOI: 10.1021/acsomega.3c09676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND The alarming mortality rate of sepsis in ICUs has garnered significant attention. The precise etiology remains elusive. Mitochondria, often referred to as the cellular powerhouses, have been postulated to have a dysfunctional role, correlating with the onset and progression of sepsis. However, the exact causal relationship remains to be defined. METHOD Employing the Mendelian randomization approach, this study systematically analyzed data from the IEUOpenGWAS and UKbiobank databases concerning mitochondrial function-related proteins and their association with sepsis, aiming to delineate the causal relationship between the two. RESULTS The findings underscored a statistically significant association of GrpE1 with sepsis, registering a P value of 0.005 and an OR of 0.499 (95% CI: 0.307-0.810). Likewise, HTRA2, ISCU, and CUP3 each manifested significant associations with sepsis, yielding OR values of 0.585, 0.637, and 0.634, respectively. These results suggest potential implications of the aforementioned proteins in the pathogenesis of sepsis. CONCLUSION The present study furnishes novel evidence elucidating the roles of GrpE1, HTRA2, ISCU, and CUP3 in the pathophysiology of sepsis. Such insights pave the way for a deeper understanding of the pathological mechanisms underpinning sepsis and hint at promising therapeutic strategies for the future.
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Affiliation(s)
- Jian Zhao
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Shu-qin Zhou
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Yu-xing Chen
- Department
of Gerontology, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Xin Pan
- Department
of Gerontology, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Yuan-zhuo Chen
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Yu-gang Zhuang
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
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Islam M, Samal A, Davis DJ, Behura SK. Ablation of placental REST deregulates fetal brain metabolism and impacts gene expression of the offspring brain at the postnatal and adult stages. FASEB J 2024; 38:e23349. [PMID: 38069914 DOI: 10.1096/fj.202301344r] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/26/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023]
Abstract
In this study, the transcriptional repressor REST (Repressor Element 1 Silencing Transcription factor) was ablated in the mouse placenta to investigate molecular and cellular impacts on the offspring brain at different life stages. Ablation of placental REST deregulated several brain metabolites, including glucose and lactate that fuel brain energy, vitamin C (ascorbic acid) that functions in the epigenetic programming of the brain during postnatal development, and glutamate and creatine that help the brain to respond to stress conditions during adult life. Bulk RNA-seq analysis showed that a lack of placental REST persistently altered multiple transport genes, including those related to oxygen transportation in the offspring brain. While metabolic genes were impacted in the postnatal brain, different stress response genes were activated in the adult brain. DNA methylation was also impacted in the adult brain due to the loss of placental REST, but in a sex-biased manner. Single-nuclei RNA-seq analysis showed that specific cell types of the brain, particularly those of the choroid plexus and ependyma, which play critical roles in producing cerebrospinal fluid and maintaining metabolic homeostasis, were significantly impacted due to the loss of placental REST. These cells showed significant differential expression of genes associated with the metabotropic (G coupled protein) and ionotropic (ligand-gated ion channel) glutamate receptors, suggesting an impact of ablation of placental REST on the glutamatergic signaling of the offspring brain. The study expands our understanding of placental influences on the offspring brain.
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Affiliation(s)
- Maliha Islam
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Ananya Samal
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Daniel J Davis
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, USA
- Animal Modeling Core, University of Missouri, Columbia, Missouri, USA
| | - Susanta K Behura
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
- MU Institute for Data Science and Informatics, University of Missouri, Columbia, Missouri, USA
- Interdisciplnary Reproductive and Health Group, University of Missouri, Columbia, Missouri, USA
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, Missouri, USA
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Zheng Z, Liu L, Ouyang S, Chen Y, Lin P, Chen H, You Y, Zhao P, Huang K, Tao J. In Situ Ratiometric Determination of Cerebral Ascorbic Acid after Ischemia Reperfusion. ACS Sens 2023; 8:4587-4596. [PMID: 38038440 DOI: 10.1021/acssensors.3c01515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Ascorbic acid (AA) is significant in protecting the brain from further damage and maintaining brain homeostasis after ischemia stroke (IS); however, the dynamic change of cerebral AA content after different degrees of ischemic stroke is still unclear. Herein, carboxylated single-walled carbon nanotube (CNT-COOH)- and polyethylenedioxythiophene (PEDOT)-modified carbon fiber microelectrodes (CFEs) were proposed to detect in situ cerebral AA with sensitivity, selectivity, and stability. Under differential pulse voltammetry scanning, the CFE/CNT-COOH/PEDOT gave a ratiometric, electrochemically responsive signal. The internal standard peak at -310 mV was from the reversible peak of O2 reduction and the deprotonation and protonation of quinone groups, while AA was oxidized at -70 mV. In vivo experimental results indicated that the cerebral AA level gradually increased with the ischemic time increasing in different middle cerebral artery occlusion (MCAO) model mice. This work implies that the increasing cerebral AA level may be highly related to the glutamate excitotoxicity and ROS-led cell apoptosis and paves a new way for further understanding the release and metabolic mechanisms of AA during ischemia reperfusion and IS.
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Affiliation(s)
- Zhiyuan Zheng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Lina Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Sixue Ouyang
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Yuying Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Peiru Lin
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Huiting Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Yuanyuan You
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Peng Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Kaibin Huang
- Department of Neurology, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Jia Tao
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
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Xing X, Wang Y, Pan F, Cai G. Osteoarthritis and risk of type 2 diabetes: A two-sample Mendelian randomization analysis. J Diabetes 2023; 15:987-993. [PMID: 37525375 PMCID: PMC10667649 DOI: 10.1111/1753-0407.13451] [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: 02/28/2023] [Revised: 05/29/2023] [Accepted: 07/14/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Physical inactivity is an independent risk factor for type 2 diabetes (T2D). Osteoarthritis (OA) is a common joint disease that limits patients' physical activity, which may increase risk of other chronic diseases including T2D. However, studies evaluating the effect of OA on T2D are scarce. This study aimed to investigate the causal effect of knee and hip OA on risk of T2D from a genetic perspective. METHODS We performed two-sample Mendelian randomization (MR) analyses to obtain nonconfounding estimates of the effect of OA on T2D risk. Single nucleotide polymorphisms (SNPs) from genome-wide association studies were selected as genetic instruments for radiographic knee and hip OA (ie, Kellgren-Lawrence grade ≥2). The associations of these SNPs with T2D were evaluated in participants from the UK Biobank. Sensitivity analyses were conducted to test the robustness of the MR results. RESULTS Genetic predisposition of knee but not hip OA was significantly associated with an increased risk of T2D (knee OA: odds ratio [OR] 1.18, 95% confidence interval (CI) 1.09-1.27, p <.001; hip OA: OR 1.04, 95% CI 0.94-1.16, p = .425). Sensitivity analyses showed that the main findings are robust. CONCLUSION The current study provides genetic evidence supporting that knee OA is a potential risk factor for T2D.
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Affiliation(s)
- Xing Xing
- Department of Epidemiology and Biostatistics, School of Public HealthAnhui Medical UniversityHefeiChina
| | - Yining Wang
- Department of Epidemiology and Biostatistics, School of Public HealthAnhui Medical UniversityHefeiChina
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public HealthAnhui Medical UniversityHefeiChina
- The Inflammation and Immune Mediated Diseases Laboratory of Anhui ProvinceAnhui Medical UniversityHefeiChina
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public HealthAnhui Medical UniversityHefeiChina
- Menzies Institute for Medical Research, University of TasmaniaHobartAustralia
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Carrasco M, Camara A, Compta Y. Healthy diet versus added sugars and unsaturated fatty acids in Parkinson's disease: Food for thought. Parkinsonism Relat Disord 2023; 115:105865. [PMID: 37775427 DOI: 10.1016/j.parkreldis.2023.105865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Affiliation(s)
- Marcos Carrasco
- Parkinson's Disease & Movement Disorders Unit, Endocrinology Service, Hospital Clínic i Universitari de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN- RND, InstitutClínic de Neurociències UBNeuro (Maria de Maeztu Excellence Centre), Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Ana Camara
- Parkinson's Disease & Movement Disorders Unit, Neurology Service, Hospital Clínic i Universitari de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN- RND, InstitutClínic de Neurociències UBNeuro (Maria de Maeztu Excellence Centre), Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Yaroslau Compta
- Parkinson's Disease & Movement Disorders Unit, Neurology Service, Hospital Clínic i Universitari de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN- RND, InstitutClínic de Neurociències UBNeuro (Maria de Maeztu Excellence Centre), Universitat de Barcelona, Barcelona, Catalonia, Spain.
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Zhao J, Pan X, Hao D, Zhao Y, Chen Y, Zhou S, Peng H, Zhuang Y. Causal associations of gut microbiota and metabolites on sepsis: a two-sample Mendelian randomization study. Front Immunol 2023; 14:1190230. [PMID: 37781358 PMCID: PMC10537222 DOI: 10.3389/fimmu.2023.1190230] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
Background Sepsis stands as a dire medical condition, arising when the body's immune response to infection spirals into overdrive, paving the way for potential organ damage and potential mortality. With intestinal flora's known impact on sepsis but a dearth of comprehensive data, our study embarked on a two-sample Mendelian randomization analysis to probe the causal link between gut microbiota and their metabolites with severe sepsis patients who succumbed within a 28-day span. Methods Leveraging data from Genome-wide association study (GWAS) and combining it with data from 2,076 European descendants in the Framingham Heart Study, single-nucleotide polymorphisms (SNPs) were employed as Instrumental Variables (IVs) to discern gene loci affiliated with metabolites. GWAS summary statistics for sepsis were extracted from the UK Biobank consortium. Results In this extensive exploration, 93 distinct genome-wide significant SNPs correlated with gut microbial metabolites and specific bacterial traits were identified for IVs construction. Notably, a substantial link between Coprococcus2 and both the incidence (OR of 0.80, 95% CI: 0.68-0.94, P=0.007) and the 28-day mortality rate (OR 0.48, 95% CI: 0.27-0.85, P=0.013) of sepsis was observed. The metabolite α-hydroxybutyrate displayed a marked association with sepsis onset (OR=1.08, 95% CI: 1.02-1.15, P=0.006) and its 28-day mortality rate (OR=1.17, 95% CI: 1.01-1.36, P=0.029). Conclusion This research unveils the intricate interplay between the gut microbial consortium, especially the genus Coprococcus, and the metabolite α-hydroxybutyrate in the milieu of sepsis. The findings illuminate the pivotal role of intestinal microbiota and their metabolites in sepsis' pathogenesis, offering fresh insights for future research and hinting at novel strategies for sepsis' diagnosis, therapeutic interventions, and prognostic assessments.
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Affiliation(s)
- Jian Zhao
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xin Pan
- Department of Gerontology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Di Hao
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Zhao
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuanzhuo Chen
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuqin Zhou
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hu Peng
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yugang Zhuang
- Department of Emergency, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
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Tolubayeva DB, Gritsenko LV, Kedruk YY, Aitzhanov MB, Nemkayeva RR, Abdullin KA. Effect of Hydrogen Plasma Treatment on the Sensitivity of ZnO Based Electrochemical Non-Enzymatic Biosensor. BIOSENSORS 2023; 13:793. [PMID: 37622880 PMCID: PMC10452905 DOI: 10.3390/bios13080793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/26/2023]
Abstract
Information on vitamin C-ascorbic acid (AA)-content is important as it facilitates the provision of dietary advice and strategies for the prevention and treatment of conditions associated with AA deficiency or excess. The methods of determining AA content include chromatographic techniques, spectrophotometry, and electrochemical methods of analysis. In the present work, an electrochemical enzyme-free ascorbic acid sensor for a neutral medium has been developed. The sensor is based on zinc oxide nanowire (ZnO NW) arrays synthesized via low-temperature chemical deposition (Chemical Bath Deposition) on the surface of an ITO substrate. The sensitivity of the electrochemical enzyme-free sensor was found to be dependent on the process treatments. The AA sensitivity values measured in a neutral PBS electrolyte were found to be 73, 44, and 92 µA mM-1 cm-2 for the ZnO NW-based sensors of the pristine, air-annealed (AT), and air-annealed followed by hydrogen plasma treatment (AT+PT), respectively. The simple H-plasma treatment of ZnO nanowire arrays synthesized via low-temperature chemical deposition has been shown to be an effective process step to produce an enzyme-free sensor for biological molecules in a neutral electrolyte for applications in health care and biomedical safety.
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Affiliation(s)
- Diana B. Tolubayeva
- Faculty of Metallurgy and Mechanical Engineering, Karaganda Industrial University, Republic Ave. 30, Temirtau 101400, Kazakhstan;
| | - Lesya V. Gritsenko
- Institute of Energy and Mechanical Engineering, Satbayev University, Satpayev Str., 22, Almaty 050013, Kazakhstan;
- National Nanotechnology Laboratory of Open Type (NNLOT), Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty 050040, Kazakhstan; (M.B.A.); (R.R.N.)
| | - Yevgeniya Y. Kedruk
- Institute of Energy and Mechanical Engineering, Satbayev University, Satpayev Str., 22, Almaty 050013, Kazakhstan;
- National Nanotechnology Laboratory of Open Type (NNLOT), Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty 050040, Kazakhstan; (M.B.A.); (R.R.N.)
| | - Madi B. Aitzhanov
- National Nanotechnology Laboratory of Open Type (NNLOT), Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty 050040, Kazakhstan; (M.B.A.); (R.R.N.)
| | - Renata R. Nemkayeva
- National Nanotechnology Laboratory of Open Type (NNLOT), Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty 050040, Kazakhstan; (M.B.A.); (R.R.N.)
| | - Khabibulla A. Abdullin
- National Nanotechnology Laboratory of Open Type (NNLOT), Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty 050040, Kazakhstan; (M.B.A.); (R.R.N.)
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Alizadeh M, Kheirouri S, Keramati M. What Dietary Vitamins and Minerals Might Be Protective against Parkinson's Disease? Brain Sci 2023; 13:1119. [PMID: 37509049 PMCID: PMC10377174 DOI: 10.3390/brainsci13071119] [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: 06/24/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Dietary constituents may affect the progression of Parkinson's disease (PD). This study aimed to assess the contribution of dietary intake of vitamins and minerals to the severity, motor and non-motor symptoms, and risk of PD. METHODS In this case-control study, 120 patients with PD and 50 healthy participants participated. Dietary intake of vitamins and minerals was determined using a 147-item food frequency questionnaire. The severity of PD was determined by the Unified Parkinson's Disease Rating Scale (UPDRS). RESULTS Patients with PD had lower intake of several vitamins and minerals including lycopene, thiamine, vitamin B6, vitamin B12, pantothenic acid, magnesium, zinc, manganese, selenium, chromium, and phosphorus, but had higher intake of α-tocopherol. High dietary intake of vitamin A, α-carotene, β-cryptoxanthin, vitamin C, and α-tocopherol were correlated with increased odds of PD. High intake of lycopene, thiamin, vitamin B6, pantothenic acid, magnesium, zinc, manganese, chromium, and phosphorous correlated with reduced odds of PD. The predictive power of α-tocopherol concerning the risk of PD was stronger relative to other vitamins. Dietary intake of pantothenic acid was negatively correlated with PD severity and symptoms of motor examination and complication. The severity and motor symptoms of PD were also negatively correlated with β-carotene, vitamin C, riboflavin, vitamin B6, and biotin intake. The UPDRS total score and motor symptoms in PD patients were negatively correlated with phosphorus, magnesium, zinc, manganese, and chromium, and strongly with potassium intake. CONCLUSION The findings indicate that adequate dietary intake of vitamins and minerals may have a preventive effect on developing PD and progression of motor decline.
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Affiliation(s)
- Mohammad Alizadeh
- Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz 5166614711, Iran
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz 5166614711, Iran
| | - Sorayya Kheirouri
- Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz 5166614711, Iran
| | - Majid Keramati
- Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz 5166614711, Iran
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Zeng R, Wang J, Zheng C, Jiang R, Tong S, Wu H, Zhuo Z, Yang Q, Leung FW, Sha W, Chen H. Lack of Causal Associations of Inflammatory Bowel Disease with Parkinson's Disease and Other Neurodegenerative Disorders. Mov Disord 2023; 38:1082-1088. [PMID: 36959736 DOI: 10.1002/mds.29386] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/26/2023] [Accepted: 03/06/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Observational studies have indicated associations between inflammatory bowel disease (IBD) and neurodegenerative diseases, including Parkinson's disease (PD). OBJECTIVE To evaluate the causal associations of IBD with PD and other selected neurodegenerative disorders using updated data. METHODS Bidirectional two-sample Mendelian randomization studies using genome-wide association studies summary statistics of IBD and PD. RESULTS We found a lack of evidence for the causal association of IBD on PD (odds ratio [OR], 1.014; 95% confidence interval [CI], 0.967-1.063; P = 0.573). Reverse analysis also indicated no evidence of a causal effect for PD on IBD (OR, 0.978; 95% CI, 0.910-1.052; P = 0.549). The causality between IBD and Alzheimer's disease, amyotrophic lateral sclerosis, and multiple sclerosis was unfounded (all P > 0.05). CONCLUSIONS The updated analyses provide no clear evidence for causal associations of IBD with PD or the other three neurodegenerative diseases. Potential confounders might contribute to the previously observed associations, and further investigations are warranted. © 2023 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Ruijie Zeng
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Jinghua Wang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Hematology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Chunwen Zheng
- Shantou University Medical College, Shantou, Guangdong, China
- Department of Ophthalmology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Rui Jiang
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Shuangshuang Tong
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Huihuan Wu
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Zewei Zhuo
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Qi Yang
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Felix W Leung
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- Sepulveda Ambulatory Care Center, Veterans Affairs Greater Los Angeles Healthcare System, North Hills, California, USA
| | - Weihong Sha
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Hao Chen
- Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
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Knight E, Geetha T, Burnett D, Babu JR. The Role of Diet and Dietary Patterns in Parkinson's Disease. Nutrients 2022; 14:4472. [PMID: 36364733 PMCID: PMC9654624 DOI: 10.3390/nu14214472] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 07/30/2023] Open
Abstract
Parkinson's Disease (PD) is a neurodegenerative disorder associated with diminished nutrition status and decreased quality of life. While the prevalence of PD is expected to increase, no preventative or curative therapy for PD exists at this time. Although nutrition and diet represent modifiable risk factors for reducing chronic disease risk, research on the impact of single nutrients on PD has yielded mixed results. As a result, this single-nutrient approach may be the driving force behind the inconsistency, and a holistic dietary approach may overcome this inconsistency by accounting for the interactions between nutrients. The following review aims to examine the impact of a generally healthy dietary pattern, the protein-restricted diet (PRD), the ketogenic diet (KD), the Mediterranean diet (MD), and the Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet on PD risk, progression, and severity. While most of the included studies support the role of diet and dietary patterns in reducing the risk of PD or alleviating PD severity, the inconsistent results and need for further evidence necessitate more research being conducted before making dietary recommendations. Research on the potential beneficial effects of dietary patterns on PD should also investigate potential risks.
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Affiliation(s)
- Emily Knight
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
| | - Thangiah Geetha
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
| | - Donna Burnett
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
| | - Jeganathan Ramesh Babu
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
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12
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Li S, Liu B, Li QH, Zhang Y, Zhang H, Gao S, Wang L, Wang T, Han Z, Liu G, Wang K. Evaluating the Bidirectional Causal Association Between Daytime Napping and Alzheimer’s Disease Using Mendelian Randomization. J Alzheimers Dis 2022; 89:1315-1322. [DOI: 10.3233/jad-220497] [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: Until now, both cross-sectional and longitudinal studies have identified controversial findings about the association between daytime napping and Alzheimer’s disease (AD) or cognitive decline. Therefore, it remains unclear about the causal association between daytime napping and AD or cognitive decline. Objective: We aim to investigate the causal association between daytime napping and AD. Methods: Here, we conduct a bidirectional Mendelian randomization (MR) analysis to investigate the causal association between daytime napping and AD using large-scale GWAS datasets from daytime napping including 452,633 individuals of European ancestry and AD including 35,274 AD and 59,163 controls of European ancestry. A total of five MR methods are selected including inverse-variance weighted (IVW), weighted median, MR-Egger, MR-PRESSO, and contamination mixture method. Results: MR analysis highlights significant causal association of AD with daytime napping using IVW (beta = -0.006, 95% CI [–0.009, –0.002], p = 2.00E-03), but no significant causal association of daytime napping with AD using IVW (OR = 0.76, 95% CI 0.53-1.10, p = 1.40E-01). Conclusion: Our bidirectional MR analysis demonstrates the causal effect of AD on daytime napping. However, there is no causal effect of daytime napping on AD. Our current findings are consistent with recent evidence from other MR studies that highlight little evidence supporting a causal effect of sleep traits on AD and support the causal effect of AD on sleep traits.
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Affiliation(s)
- Sijie Li
- Department of Emergency, Xuanwu Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Centerfor Brain Disorders, Capital Medical University, Beijing, China
| | - Bian Liu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Qing-hao Li
- Children’s Center, the Affiliated Taian City Centeral Hospital of Qingdao University, Taian, Shandong, China
| | - Yan Zhang
- Department of Pathology, The Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Haihua Zhang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Centerfor Brain Disorders, Capital Medical University, Beijing, China
| | - Shan Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Centerfor Brain Disorders, Capital Medical University, Beijing, China
| | - Longcai Wang
- Department of Anesthesiology, TheAffiliated Hospital of Weifang Medical University, Weifang, China
| | - Tao Wang
- Chinese Institute for Brain Research, Beijing, China
| | - Zhifa Han
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy ofMedical Sciences, Beijing, China
| | - Guiyou Liu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Centerfor Brain Disorders, Capital Medical University, Beijing, China
- Chinese Institute for Brain Research, Beijing, China
- Key Laboratoryof Cerebral Microcirculation in Universities of Shandong; Departmentof Neurology, Second Affiliated Hospital; Shandong First MedicalUniversity & Shandong Academy of Medical Sciences, Taian, Shandong, China
- Beijing Key Laboratory of HypoxiaTranslational Medicine, National Engineering Laboratory of Internet Medical Diagnosis and Treatment Technology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Kun Wang
- Children’s Center, the Affiliated Taian City Centeral Hospital of Qingdao University, Taian, Shandong, China
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13
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Rakowski M, Porębski S, Grzelak A. Nutraceuticals as Modulators of Autophagy: Relevance in Parkinson’s Disease. Int J Mol Sci 2022; 23:ijms23073625. [PMID: 35408992 PMCID: PMC8998447 DOI: 10.3390/ijms23073625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/20/2022] [Accepted: 03/23/2022] [Indexed: 12/29/2022] Open
Abstract
Dietary supplements and nutraceuticals have entered the mainstream. Especially in the media, they are strongly advertised as safe and even recommended for certain diseases. Although they may support conventional therapy, sometimes these substances can have unexpected side effects. This review is particularly focused on the modulation of autophagy by selected vitamins and nutraceuticals, and their relevance in the treatment of neurodegenerative diseases, especially Parkinson’s disease (PD). Autophagy is crucial in PD; thus, the induction of autophagy may alleviate the course of the disease by reducing the so-called Lewy bodies. Hence, we believe that those substances could be used in prevention and support of conventional therapy of neurodegenerative diseases. This review will shed some light on their ability to modulate the autophagy.
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Affiliation(s)
- Michał Rakowski
- The Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, University of Lodz, 90-237 Lodz, Poland
- Cytometry Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland; (S.P.); (A.G.)
- Correspondence:
| | - Szymon Porębski
- Cytometry Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland; (S.P.); (A.G.)
| | - Agnieszka Grzelak
- Cytometry Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland; (S.P.); (A.G.)
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14
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Zhu G, Zhou S, Xu Y, Gao R, Li H, Su W, Han G, Wang R. Mendelian randomization study on the causal effects of COVID-19 on childhood intelligence. J Med Virol 2022; 94:3233-3239. [PMID: 35322423 PMCID: PMC9088592 DOI: 10.1002/jmv.27736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 11/17/2022]
Abstract
Although individuals with coronavirus disease 2019 (COVID‐19) are known to be at increased risk for other conditions resulting from pathogenic changes (including metaplastic or anaplastic) in the lungs and other organs and organ systems, it is still unknown whether COVID‐19 affects childhood intelligence. The present two‐sample Mendelian randomization study aims to identify the genetic causal link between COVID‐19 and childhood intelligence. Four COVID‐19 genetic instrumental variants (IVs) were chosen from the largest genome‐wide association studies (GWAS) for COVID‐19 (hospitalized vs. population) (6406 cases and 902 088 controls of European ancestry). The largest childhood intelligence GWAS (n = 12 441 individuals of European ancestry) was used to evaluate the effect of the identified COVID‐19‐associated genetic IVs on childhood intelligence. We found that as the genetic susceptibility to COVID‐19 increased, childhood intelligence followed a decreasing trend, according to mr_egger (β = −0.156; p = 0.601; odds ratio [OR] = 0.856; 95% confidence interval [CI]: 0.522–1.405), simple mode (β = −0.126; p = 0.240; OR = 0.882; 95% CI: 0.745–1.044), and weighted mode (β = −0.121; p = 0.226; OR = 0.886; 95% CI: 0.758–1.036) analyses. This trend was further demonstrated by the weighted median (β = −0.134; p = 0.031; OR = 0.875; 95% CI: 0.774–0.988) and the inverse variance weighted (β = −0.152; p = 0.004; OR = 0.859; 95% CI: 0.776–0.952). Our analysis suggests a causal link between genetically increased COVID‐19 and decreased childhood intelligence. Thus, COVID‐19 may be a risk factor for declines in childhood intelligence.
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Affiliation(s)
- Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Shan Zhou
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Huan Li
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Gencheng Han
- Beijing Institute of Basic Medical SciencesBeijingChina
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
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15
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Zhou S, Zhu G, Xu Y, Gao R, Li H, Han G, Su W, Wang R. Mendelian Randomization Study on the Putative Causal Effects of Omega-3 Fatty Acids on Low Back Pain. Front Nutr 2022; 9:819635. [PMID: 35237642 PMCID: PMC8882682 DOI: 10.3389/fnut.2022.819635] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/11/2022] [Indexed: 12/19/2022] Open
Abstract
Previous observational studies have suggested an important role of omega-3 in low back pain. In the present study, we used a two-sample Mendelian randomization (MR) study to identify the putative causal link between omega-3 and low back pain. A broadly used genome-wide association study (GWAS) (n = 8,866 individuals from European ancestry) was used to select plasma omega-3 genetic instrumental variables (IVs). A previously reported GWAS (4,863 cases and 74,589 controls from European ancestry) for low back pain were used to assess the effect of plasma omega-3 levels on low back pain. MR-egger_intercept, MR-PRESSO, MR_egger, and inverse variance weighted (IVW) in Cochran's Q-test were used to determine the pleiotropy and heterogeneity, respectively. MR-egger, weighted median, IVW, and weighted mode were used to perform MR analysis. Finally, the effect of a single nucleotide polymorphism (SNP) was used to test the SNP bias. We did not find a significant pleiotropy or heterogeneity of all six selected plasma omega-3 genetic IVs in low back pain GWAS. Expectedly, we found that as plasma omega-3 levels genetically increased, the risk of low back pain had a decreased trend using MR-egger (Beta = −0.593, p = 0.228; OR = 0.553) and weighted mode (Beta = −0.251, p = 0.281; OR = 0.778). This reduced trend was further proven by weighted median (Beta = −0.436, p = 0.025; OR = 0.646) and IVW (Beta = −0.366, p = 0.049; OR = 0.694). Our analysis suggested a putative causal link between genetically increased plasma omega-3 levels and the reduced risk of low back pain in European ancestries. Thus, the supplementation of omega-3 may be important for the prevention and treatment of low back pain.
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Affiliation(s)
- Shan Zhou
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
| | - Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
| | - Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
| | - Huan Li
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
| | - Gencheng Han
- Department of Neuroimmune and Antibody Engineering, Beijing Institute of Basic Medical Sciences, Beijing, China
- Gencheng Han
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
- Wenting Su
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
- *Correspondence: Renxi Wang
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16
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Gao L, Wang K, Ni QB, Fan H, Zhao L, Huang L, Yang M, Li H. Educational Attainment and Ischemic Stroke: A Mendelian Randomization Study. Front Genet 2022; 12:794820. [PMID: 35222520 PMCID: PMC8876515 DOI: 10.3389/fgene.2021.794820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/24/2021] [Indexed: 11/25/2022] Open
Abstract
Observational studies have evaluated the potential association of socioeconomic factors such as higher education with the risk of stroke but reported controversial findings. The objective of our study was to evaluate the potential causal association between higher education and the risk of stroke. Here, we performed a Mendelian randomization analysis to evaluate the potential association of educational attainment with ischemic stroke (IS) using large-scale GWAS datasets from the Social Science Genetic Association Consortium (SSGAC, 293,723 individuals), UK Biobank (111,349 individuals), and METASTROKE consortium (74,393 individuals). We selected three Mendelian randomization methods including inverse-variance-weighted meta-analysis (IVW), weighted median regression, and MR–Egger regression. IVW showed that each additional 3.6-year increase in years of schooling was significantly associated with a reduced IS risk (OR = 0.54, 95% CI: 0.41–0.71, and p = 1.16 × 10–5). Importantly, the estimates from weighted median (OR = 0.49, 95% CI: 0.33–0.73, and p = 1.00 × 10–3) and MR–Egger estimate (OR = 0.18, 95% CI: 0.06–0.60, and p = 5.00 × 10–3) were consistent with the IVW estimate in terms of direction and magnitude. In summary, we provide genetic evidence that high education could reduce IS risk.
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Affiliation(s)
- Luyan Gao
- Department of Neurology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affilicated to Nankai University, The Fourth Central Clinical College of Tianjin Medical University, Tianjin, China
| | - Kun Wang
- Taishan Academy of Medical Sciences, Taian City Central Hospital, Taian, China
| | - Qing-Bin Ni
- Taishan Academy of Medical Sciences, Taian City Central Hospital, Taian, China
| | - Hongguang Fan
- Department of Neurology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affilicated to Nankai University, The Fourth Central Clinical College of Tianjin Medical University, Tianjin, China
| | - Lan Zhao
- Department of Neurology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affilicated to Nankai University, The Fourth Central Clinical College of Tianjin Medical University, Tianjin, China
| | - Lei Huang
- Department of Neurology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affilicated to Nankai University, The Fourth Central Clinical College of Tianjin Medical University, Tianjin, China
| | - Mingfeng Yang
- Second Affiliated Hospital, Brain Science Institute, Key Laboratory of Cerebral Microcirculation in Universities of Shandong, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
- *Correspondence: Mingfeng Yang, ; Huanming Li,
| | - Huanming Li
- Department of Cardiovascular, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affilicated to Nankai University, The Fourth Central Clinical College of Tianjin Medical University, Tianjin, China
- *Correspondence: Mingfeng Yang, ; Huanming Li,
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17
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Zhang Y, Qu J, Luo L, Xu Z, Zou X. Multigenomics Reveals the Causal Effect of Herpes Simplex Virus in Alzheimer's Disease: A Two-Sample Mendelian Randomization Study. Front Genet 2022; 12:773725. [PMID: 35069681 PMCID: PMC8766664 DOI: 10.3389/fgene.2021.773725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/25/2021] [Indexed: 11/17/2022] Open
Abstract
In recent years, the herpes virus infectious hypothesis for Alzheimer’s disease (AD) has gained support from an increasing number of researchers. Herpes simplex virus (HSV) is a potential risk factor associated with AD. This study assessed whether HSV has a causal relationship with AD using a two-sample Mendelian randomization analysis model. Six single-nucleotide polymorphisms (SNPs) associated with HSV-1 and thirteen SNPs associated with HSV-2 were used as instrumental variables in the MR analysis. We estimated MR values of relevance between exposure and the risk of AD using inverse-variance weighted (IVW) method, MR-Egger regression (Egger), and weighted median estimator (WME). To make the conclusion more robust and reliable, sensitivity analyses and RadialMR were performed to evaluate the pleiotropy and heterogeneity. We found that anti-HSV-1 IgG measurements were not associated with risk of AD (OR, 0.96; 95% CI, 0.79–1.18; p = 0.736), and the same was true for HSV-2 (OR, 1.03; 95% CI, 0.94–1.12; p = 0.533). The findings indicated that any HSV infection does not appear to be a genetically valid target of intervention in AD.
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Affiliation(s)
- Yuwei Zhang
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
| | - Jiaojiao Qu
- College of Tea Sciences, Guizhou University, Guiyang, China
| | - Li Luo
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
| | - Zhongshun Xu
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
| | - Xiao Zou
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
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18
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Zhu G, Zhou S, Xu Y, Gao R, Li H, Zhai B, Liu X, He Y, Wang X, Han G, Su W, Wang R. Mendelian randomization study on the causal effects of omega-3 fatty acids on rheumatoid arthritis. Clin Rheumatol 2022; 41:1305-1312. [PMID: 35000008 DOI: 10.1007/s10067-022-06052-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/28/2021] [Accepted: 01/02/2022] [Indexed: 01/14/2023]
Abstract
OBJECTIVES To resolve the ongoing debate on the role of plasma omega-3 fatty acids in rheumatoid arthritis (RA), we attempted to identify the association between omega-3 intake and the risk of RA. METHODS We analyzed data from the largest genome-wide association study (GWAS) for omega-3 fatty acids (N = 114,999 of European ancestry) and RA (14,361 cases and 43,923 controls of European ancestry). Mendelian randomization-egger_intercept, MR-PRESSO, and Cochran's Q test were used to determine pleiotropy and heterogeneity. Egger, weighted median, inverse variance weighted (IVW), simple mode, and weighted mode were used to evaluate the causal association of plasma omega-3 levels on RA. RESULTS We found no significant pleiotropy, heterogeneity, and bias among the omega-3 genetic instrumental variables (IVs) in RA GWAS datasets. MR analysis demonstrated that as omega-3 levels genetically increased, the risk of MS increased using MR-egger (Beta = 0.137, p = 0.037; OR = 1.146, 95% CI: [1.014, 1.296]), weighted median (Beta = 0.162, p = 0.001; OR = 1.176, 95% CI: [1.070, 1.292]), IVW (Beta = 0.102, p = 0.025; OR = 1.108, 95% CI: [1.013, 1.211]), simple mode (Beta = 0.219, p = 0.149; OR = 1.245, 95% CI: [0.931, 1.665]), and weighted mode (Beta = 0.146, p = 0.006; OR = 1.157, 95% CI: [1.051, 1.274]). CONCLUSIONS Our analysis suggested a causal association between genetically increased plasma omega-3 levels and the increased risk of RA in populations with European ancestry. Thus, to reduce the risk of RA, those of European descent should reduce omega-3 intake. Key Points • No significant pleiotropy or heterogeneity among the omega-3 genetic IVs in RA GWAS datasets. • Genetically increased plasma omega-3 levels enhanced the risk of RA in European lineages.
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Affiliation(s)
- Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Shan Zhou
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Huan Li
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Bing Zhai
- Department of Geriatric Hematology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiaoling Liu
- Department of Dermatology, First Medical Centre of Chinese, PLA General Hospital, Beijing, 100853, China
| | - Youdi He
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Xiaoqian Wang
- Staidson (Beijing) Biopharmaceuticals Co., Ltd, Beijing, 100176, China
| | - Gencheng Han
- Department of Neuroimmune and Antibody Engineering, Beijing Institute of Basic Medical Sciences, Box 130 (3), Taiping Road #27, Beijing, 100850, China.
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China.
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China.
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19
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Wang R. Mendelian randomization study updates the effect of 25-hydroxyvitamin D levels on the risk of multiple sclerosis. J Transl Med 2022; 20:3. [PMID: 34980161 PMCID: PMC8722044 DOI: 10.1186/s12967-021-03205-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 12/17/2021] [Indexed: 12/19/2022] Open
Abstract
Background Observational studies and previous Mendelian randomization (MR) studies have shown that genetically low 25-hydroxyvitamin D (25OHD) levels are associated with a high susceptibility to multiple sclerosis (MS). The present MR study aims to update the causal estimates for the effects of 25OHD levels on MS risk. Methods To date, the largest genome-wide association study (GWAS) for serum 25OHD (n = 401,460) and MS (14,498 MS cases and 24,091 controls) was used to assess the effect of serum 25OHD levels on MS. All participants were of European ancestry. The MR-egger_intercept test and Cochran’s Q statistic were used to determine the pleiotropy and the heterogeneity, respectively. MR-egger, weighted median, inverse variance weighted (multiplicative random effects), simple mode, and weighted mode methods were used to evaluate the causal association of serum 25OHD levels with MS. Finally, the effect of a single 25OHD SNP (single nucleotide polymorphism) on MS was used to test the SNP bias. Results One hundred and fifteen newly identified serum 25OHD genetic variants were extracted from a large-scale serum 25OHD GWAS dataset. The 20 most effective and independent 25OHD genetic instrumental variables were extracted from the MS GWAS summary statistics. Pleiotropy analysis suggested no significant pleiotropic variant among the 20 selected 25OHD genetic instrument variants in MS GWAS datasets. As serum levels of 25OHD based on genetic changes increased, the risk of MS decreased using MR-egger (Beta = − 0.940, p = 0.001; OR = 0.391), weighted median (Beta = − 0.835, p = 0.000; OR = 0.434), IVW (Beta = − 0.781, p = 0.000; OR = 0.458), simple mode (Beta = − 1.484, p = 0.016; OR = 0.227), and weighted mode (Beta = − 0.913, p = 0.000; OR = 0.401). Our results were robust, with no obvious bias based on investigating the single 25OHD SNP on MS. Conclusions Our analysis suggested a causal association between genetically increased serum 25OHD levels and reduced MS in the European population. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03205-6.
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Affiliation(s)
- Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China.
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20
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Qu ZB, Jiang Y, Zhang J, Chen S, Zeng R, Zhuo Y, Lu M, Shi G, Gu H. Tailoring Oxygen-Containing Groups on Graphene for Ratiometric Electrochemical Measurements of Ascorbic Acid in Living Subacute Parkinson's Disease Mouse Brains. Anal Chem 2021; 93:16598-16607. [PMID: 34844405 DOI: 10.1021/acs.analchem.1c03965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ascorbic acid (AA), a major antioxidant in the central nervous system (CNS), is involved in withstanding oxidative stress that plays a significant role in the pathogenesis of Parkinson's disease (PD). Exploring the AA disturbance in the process of PD is of great value in understanding the molecular mechanism of PD. Herein, by virtue of a carbon fiber electrode (CFE) as a matric electrode, a three-step electrochemical process for tailoring oxygen-containing groups on graphene was well designed: potentiostatic deposition was carried out to fabricate graphene oxide on CFE, electrochemical reduction that assisted in removing the epoxy groups accelerated the electron transfer kinetics of AA oxidation, and electrochemical oxidation that increased the content of the carbonyl group (C═O) generated an inner-reference signal. The mechanism was solidified by ab initio calculations by comparing AA absorption on defected models of graphene functionalized with different oxygen groups including carboxyl, hydroxyl, epoxy, and carbonyl. It was found that epoxy groups would hinder the physical absorption of AA onto graphene, while other functional groups would be beneficial to it. Biocompatible polyethylenedioxythiophene (PEDOT) was further rationally assembled to improve the antifouling property of graphene. As a result, a new platform for ratiometric electrochemical measurements of AA with high sensitivity, excellent selectivity, and reproducibility was established. In vivo determination of AA levels in different regions of living mouse brains by the proposed method demonstrated that AA decreased remarkably in the hippocampus and cortex of a subacute PD mouse than those of a normal mouse.
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Affiliation(s)
- Zhi-Bei Qu
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yimin Jiang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Jiaxin Zhang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Shu Chen
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Rongjin Zeng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Yi Zhuo
- Hunan Provincial Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Ming Lu
- Hunan Provincial Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, P. R. China
| | - Hui Gu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
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