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Chen TB, Chang CM, Yang CC, Tsai IJ, Wei CY, Yang HW, Yang CP. Neuroimmunological Effect of Vitamin D on Neuropsychiatric Long COVID Syndrome: A Review. Nutrients 2023; 15:3802. [PMID: 37686834 PMCID: PMC10490318 DOI: 10.3390/nu15173802] [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: 08/03/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the coronavirus disease 2019 (COVID-19). COVID-19 is now recognized as a multiorgan disease with a broad spectrum of manifestations. A substantial proportion of individuals who have recovered from COVID-19 are experiencing persistent, prolonged, and often incapacitating sequelae, collectively referred to as long COVID. To date, definitive diagnostic criteria for long COVID diagnosis remain elusive. An emerging public health threat is neuropsychiatric long COVID, encompassing a broad range of manifestations, such as sleep disturbance, anxiety, depression, brain fog, and fatigue. Although the precise mechanisms underlying the neuropsychiatric complications of long COVID are presently not fully elucidated, neural cytolytic effects, neuroinflammation, cerebral microvascular compromise, breakdown of the blood-brain barrier (BBB), thrombosis, hypoxia, neurotransmitter dysregulation, and provoked neurodegeneration are pathophysiologically linked to long-term neuropsychiatric consequences, in addition to systemic hyperinflammation and maladaptation of the renin-angiotensin-aldosterone system. Vitamin D, a fat-soluble secosteroid, is a potent immunomodulatory hormone with potential beneficial effects on anti-inflammatory responses, neuroprotection, monoamine neurotransmission, BBB integrity, vasculometabolic functions, gut microbiota, and telomere stability in different phases of SARS-CoV-2 infection, acting through both genomic and nongenomic pathways. Here, we provide an up-to-date review of the potential mechanisms and pathophysiology of neuropsychiatric long COVID syndrome and the plausible neurological contributions of vitamin D in mitigating the effects of long COVID.
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Affiliation(s)
- Ting-Bin Chen
- Department of Neurology, Neurological Institute, Taichung Veterans General Hospital, Taichung 407219, Taiwan;
| | - Ching-Mao Chang
- Center for Traditional Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
- Faculty of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei 11217, Taiwan
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11217, Taiwan
| | - Cheng-Chia Yang
- Department of Healthcare Administration, Asia University, Taichung 41354, Taiwan;
| | - I-Ju Tsai
- Department of Medical Research, Kuang Tien General Hospital, Taichung 433, Taiwan;
| | - Cheng-Yu Wei
- Department of Exercise and Health Promotion, College of Kinesiology and Health, Chinese Culture University, Taipei 11114, Taiwan
- Department of Neurology, Chang Bing Show Chwan Memorial Hospital, Changhua 50544, Taiwan
| | - Hao-Wen Yang
- Department of Family Medicine, Kuang Tien General Hospital, Taichung 433, Taiwan
| | - Chun-Pai Yang
- Department of Medical Research, Kuang Tien General Hospital, Taichung 433, Taiwan;
- Department of Neurology, Kuang Tien General Hospital, Taichung 433, Taiwan
- Department of Nutrition, HungKuang University, Taichung 433, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
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Libuda L, Naaresh R, Ludwig C, Laabs BH, Antel J, Föcker M, Hebebrand J, Hinney A, Peters T. A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder. Eur J Nutr 2021; 60:2581-2591. [PMID: 33245439 PMCID: PMC8275531 DOI: 10.1007/s00394-020-02439-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 11/04/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND While observational studies revealed an inverse association between serum 25(OH)vitamin D (25(OH)D) and the risk of attention deficit/hyperactivity disorder (ADHD), the causality of this relationship remains unclear. METHODS We conducted a bidirectional two-sample Mendelian Randomization (MR) study to examine whether 25(OH)D has an effect on the risk to develop ADHD or vice versa. Information on single nucleotide polymorphisms (SNP) associated with serum 25(OH)D was obtained from a genome-wide association study (GWAS) considering phenotype data from 79,366 individuals of European ancestry. Data on risk for ADHD were derived from a GWAS analysis with 20,183 individuals diagnosed with ADHD and 35,191 controls. For our analysis, we considered effect sizes based on the European participants (19,099 cases and 34,194 controls). RESULTS Single SNP analyses showed a causal effect of vitamin D on ADHD risk for only one SNP (rs12785878, p = 0.024). The overall MR estimates did not reveal a causal effect of 25(OH)D on risk for ADHD. In the reverse analysis, neither any single nor the multi-SNP MR analyses showed a causal effect of ADHD on 25(OH)D. CONCLUSION Results from this two-sample MR study did not confirm a causal effect of 25(OH)D on ADHD or vice versa. Accordingly, our study does not provide evidence that improving 25(OH)D via supplementation could reduce the risk of developing ADHD.
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Affiliation(s)
- Lars Libuda
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany.
- Research Institute for the Prevention of Allergies and Respiratory Diseases in Childhood, Department of Pediatrics, Marien-Hospital Wesel, 46483, Wesel, Germany.
| | - Roaa Naaresh
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany
| | - Christine Ludwig
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany
| | - Björn-Hergen Laabs
- Institut für Medizinische Biometrie und Statistik, Universität zu Lübeck, Universitätsklinikum Schleswig-Holstein, 23562, Lübeck, Germany
| | - Jochen Antel
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany
| | - Manuel Föcker
- Department of Child and Adolescent Psychiatry, University of Münster, 48149, Münster, Germany
| | - Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany
| | - Anke Hinney
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany
| | - Triinu Peters
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 174, 45147, Essen, Germany
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Ong JS, Dixon-Suen SC, Han X, An J, Liyanage U, Dusingize JC, Schumacher J, Gockel I, Böhmer A, Jankowski J, Palles C, O'Mara T, Spurdle A, Law MH, Iles MM, Pharoah P, Berchuck A, Zheng W, Thrift AP, Olsen C, Neale RE, Gharahkhani P, Webb PM, MacGregor S. A comprehensive re-assessment of the association between vitamin D and cancer susceptibility using Mendelian randomization. Nat Commun 2021; 12:246. [PMID: 33431812 PMCID: PMC7801600 DOI: 10.1038/s41467-020-20368-w] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 11/26/2020] [Indexed: 12/13/2022] Open
Abstract
Previous Mendelian randomization (MR) studies on 25-hydroxyvitamin D (25(OH)D) and cancer have typically adopted a handful of variants and found no relationship between 25(OH)D and cancer; however, issues of horizontal pleiotropy cannot be reliably addressed. Using a larger set of variants associated with 25(OH)D (74 SNPs, up from 6 previously), we perform a unified MR analysis to re-evaluate the relationship between 25(OH)D and ten cancers. Our findings are broadly consistent with previous MR studies indicating no relationship, apart from ovarian cancers (OR 0.89; 95% C.I: 0.82 to 0.96 per 1 SD change in 25(OH)D concentration) and basal cell carcinoma (OR 1.16; 95% C.I.: 1.04 to 1.28). However, after adjustment for pigmentation related variables in a multivariable MR framework, the BCC findings were attenuated. Here we report that lower 25(OH)D is unlikely to be a causal risk factor for most cancers, with our study providing more precise confidence intervals than previously possible.
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Affiliation(s)
- Jue-Sheng Ong
- Statistical Genetics Group, Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia.
| | - Suzanne C Dixon-Suen
- Cancer Epidemiology Division, Cancer Council Victoria, 615 St Kilda Rd, Melbourne, VIC, 3004, Australia
| | - Xikun Han
- Statistical Genetics Group, Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Jiyuan An
- Institute for Future Environments, Queensland University of Technology, QLD, Brisbane, QLD, 4001, Australia
| | | | | | - Upekha Liyanage
- Cancer and Population Studies Group, Population Health Department, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, 4006, Australia
| | - Jean-Cluade Dusingize
- Cancer Control Group, Population Health Department, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, Australia
| | - Johannes Schumacher
- Institute of Human Genetics, Philipps University of Marburg, Marburg, Germany
| | - Ines Gockel
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Anne Böhmer
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Janusz Jankowski
- Centre for Medicine and Health Sciences, University of Arab Emirates University, Abu Dhabi, UAE.,Comprehensive Clinical Trials Unit, University College London, London, UK
| | - Claire Palles
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
| | - Tracy O'Mara
- Molecular Cancer Epidemiology Group, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, Australia
| | - Amanda Spurdle
- Molecular Cancer Epidemiology Group, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, Australia
| | - Matthew H Law
- Statistical Genetics Group, Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia
| | - Mark M Iles
- Leeds Institute for Data Analytics, University of Leeds, Leeds, UK
| | - Paul Pharoah
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Andrew Berchuck
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Duke University Medical Center, Box 3079, Durham, NC, 27710, USA
| | - Wei Zheng
- Division of Epidemiology, Vanderbilt Epidemiology Center and Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Aaron P Thrift
- Section of Epidemiology and Population Sciences, Department of Medicine, and Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Catherine Olsen
- Faculty of Medicine, University of Queensland, Brisbane, Australia.,Cancer Control Group, Population Health Department, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, Australia
| | - Rachel E Neale
- Cancer Aetiology and Prevention Group, Population Health Department, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, Australia
| | - Puya Gharahkhani
- Statistical Genetics Group, Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia
| | - Penelope M Webb
- Gynaecological Cancer Group, Population Health Department, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, Australia
| | - Stuart MacGregor
- Statistical Genetics Group, Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia
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Heiskanen V, Pfiffner M, Partonen T. Sunlight and health: shifting the focus from vitamin D3 to photobiomodulation by red and near-infrared light. Ageing Res Rev 2020; 61:101089. [PMID: 32464190 DOI: 10.1016/j.arr.2020.101089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/10/2020] [Accepted: 05/14/2020] [Indexed: 12/14/2022]
Abstract
Both sun exposure and serum vitamin D levels have been associated with lower risks of all-cause mortality and chronic age-related diseases, e.g., cancer, diabetes and cardiovascular disease, in epidemiological studies. These associations have mainly been ascribed to beneficial effects of vitamin D. However, a vast body of randomized controlled trials (RCTs) and Mendelian randomization studies have failed to confirm any major health benefits from vitamin D supplementation. In this review, we present tentative evidence showing that red and near-infrared light, both being present in sunlight, could explain the associations between sunlight exposure and better health status. Body irradiation with red and near-infrared light, usually termed as photobiomodulation (PBM), has demonstrated beneficial effects in animal models of chronic diseases. Beyond this, preliminary evidence from RCTs suggest potential clinical benefit from PBM for chronic diseases. PBM is currently being investigated in many pre-registered clinical trials, results of which will eventually clarify the role of red and near-infrared light in the prevention and treatment of common age-related chronic diseases.
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