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Xu JJ, Zhang XB, Tong WT, Ying T, Liu KQ. Phenome-wide Mendelian randomization study evaluating the association of circulating vitamin D with complex diseases. Front Nutr 2023; 10:1108477. [PMID: 37063319 PMCID: PMC10095159 DOI: 10.3389/fnut.2023.1108477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/01/2023] [Indexed: 03/30/2023] Open
Abstract
BackgroundCirculating vitamin D has been associated with multiple clinical diseases in observational studies, but the association was inconsistent due to the presence of confounders. We conducted a bidirectional Mendelian randomization (MR) study to explore the healthy atlas of vitamin D in many clinical traits and evaluate their causal association.MethodsBased on a large-scale genome-wide association study (GWAS), the single nucleotide polymorphism (SNPs) instruments of circulating 25-hydroxyvitamin D (25OHD) from 443,734 Europeans and the corresponding effects of 10 clinical diseases and 42 clinical traits in the European population were recruited to conduct a bidirectional two-sample Mendelian randomization study. Under the network of Mendelian randomization analysis, inverse-variance weighting (IVW), weighted median, weighted mode, and Mendelian randomization (MR)–Egger regression were performed to explore the causal effects and pleiotropy. Mendelian randomization pleiotropy RESidual Sum and Outlier (MR-PRESSO) was conducted to uncover and exclude pleiotropic SNPs.ResultsThe results revealed that genetically decreased vitamin D was inversely related to the estimated BMD (β = −0.029 g/cm2, p = 0.027), TC (β = −0.269 mmol/L, p = 0.006), TG (β = −0.208 mmol/L, p = 0.002), and pulse pressure (β = −0.241 mmHg, p = 0.043), while positively associated with lymphocyte count (β = 0.037%, p = 0.015). The results did not reveal any causal association of vitamin D with clinical diseases. On the contrary, genetically protected CKD was significantly associated with increased vitamin D (β = 0.056, p = 2.361 × 10−26).ConclusionThe putative causal effects of circulating vitamin D on estimated bone mass, plasma triglyceride, and total cholesterol were uncovered, but not on clinical diseases. Vitamin D may be linked to clinical disease by affecting health-related metabolic markers.
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Affiliation(s)
- Jin-jian Xu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University (North Campus), Guangzhou, Guangdong, China
- Department of Epidemiology, School of Public Health, Sun Yat-sen University (North Campus), Guangzhou, Guangdong, China
| | - Xiao-bin Zhang
- Department of Hepatobiliary Surgery, Jingdezhen No.1 People's Hospital, Jingdezhen, Jiangxi, China
| | - Wen-tao Tong
- Department of Hepatobiliary Surgery, Jingdezhen No.1 People's Hospital, Jingdezhen, Jiangxi, China
| | - Teng Ying
- Department of Cardiology, The First Affiliated Hospital of Jiangxi Medical College, Shangrao, Jiangxi, China
| | - Ke-qi Liu
- Department of Clinical Medicine, Jiangxi Medical College, Shangrao, Jiangxi, China
- *Correspondence: Ke-qi Liu
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Vearing RM, Hart KH, Darling AL, Probst Y, Olayinka AS, Mendis J, Ribeiro H, Thakur S, Mendes M, Charlton K, Lanham-New SA. Global Perspective of the Vitamin D Status of African-Caribbean Populations: A Systematic Review and Meta-analysis. Eur J Clin Nutr 2022; 76:516-526. [PMID: 34282293 PMCID: PMC8993683 DOI: 10.1038/s41430-021-00980-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/08/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND/OBJECTIVES Vitamin D deficiency remains a global public health issue, particularly in minority ethnic groups. This review investigates the vitamin D status (as measured by 25(OH)D and dietary intake) of the African-Caribbean population globally. SUBJECTS/METHODS A systematic review was conducted by searching key databases (PUBMED, Web of Science, Scopus) from inception until October 2019. Search terms included 'Vitamin D status' and 'African-Caribbean'. A random effects and fixed effects meta-analysis was performed by combining means and standard error of the mean. RESULT The search yielded 19 papers that included n = 5670 African-Caribbean participants from six countries. A meta-analysis found this population to have sufficient (>50 nmol/L) 25(OH)D levels at 67.8 nmol/L, 95% CI (57.9, 7.6) but poor dietary intake of vitamin D at only 3.0 µg/day, 95% CI (1.67,4.31). For those living at low latitudes 'insufficient' (as defined by study authors) 25(OH)D levels were found only in participants with type 2 diabetes and in those undergoing haemodialysis. Suboptimal dietary vitamin D intake (according to the UK recommended nutrient intake of 10 µg/day) was reported in all studies at high latitudes. Studies at lower latitudes, with lower recommended dietary intakes (Caribbean recommended dietary intake: 2.5 µg/day) found 'sufficient' intake in two out of three studies. CONCLUSIONS 25(OH)D sufficiency was found in African-Caribbean populations at lower latitudes. However, at higher latitudes, 25(OH)D deficiency and low dietary vitamin D intake was prevalent.
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Affiliation(s)
- Rebecca M. Vearing
- grid.5475.30000 0004 0407 4824School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK ,grid.1007.60000 0004 0486 528XSchool of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW Australia
| | - Kathryn H. Hart
- grid.5475.30000 0004 0407 4824School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Andrea L. Darling
- grid.5475.30000 0004 0407 4824School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Yasmine Probst
- grid.1007.60000 0004 0486 528XSchool of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW Australia ,grid.510958.0Illawarra Health and Medical Research Institute, Wollongong, NSW Australia
| | - Aminat S. Olayinka
- grid.5475.30000 0004 0407 4824School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Jeewaka Mendis
- grid.5475.30000 0004 0407 4824Surrey Clinical Trials Unit, University of Surrey, Guildford, UK
| | - Helena Ribeiro
- School of Public Health, University of São Paulo, São Paulo, USA
| | - Siddhartha Thakur
- grid.40803.3f0000 0001 2173 6074College of Veterinary Medicine, North Carolina State University, Raleigh, NC USA
| | - Marcela Mendes
- grid.5475.30000 0004 0407 4824School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK ,grid.7632.00000 0001 2238 5157School of Nutrition, Faculty of Health Sciences, University of Brasilia, Brasilia, Brazil
| | - Karen Charlton
- grid.1007.60000 0004 0486 528XSchool of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW Australia ,grid.510958.0Illawarra Health and Medical Research Institute, Wollongong, NSW Australia
| | - Susan A. Lanham-New
- grid.5475.30000 0004 0407 4824School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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Vitamin D Status of the British African-Caribbean Residents: Analysis of the UK Biobank Cohort. Nutrients 2021; 13:nu13114104. [PMID: 34836358 PMCID: PMC8620024 DOI: 10.3390/nu13114104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 11/17/2022] Open
Abstract
The vitamin D status of the United Kingdom (UK) African-Caribbean (AC) population remains under-researched, despite an increased risk of vitamin D deficiency due to darker skin phenotypes and living at a high latitude. This cross-sectional study explored the vitamin D status and intake of AC individuals (n = 4046 with a valid serum 25(OH)D measurement) from the UK Biobank Cohort, aged ≥40 years at baseline (2006-2010). Over one third of the population were deficient (<25 nmol/L), 41.1% were insufficient (25-50 nmol/L) and 15.9% were sufficient (>50 nmol/L). Median (IQR) 25(OH)D was 30.0 (20.9) nmol/L. Logistic regression showed that brown/black skin phenotype, winter blood draw, not consuming oily fish and not using vitamin D supplements predicted increased odds of vitamin D deficiency, whilst older age and a summer or autumn blood draw were significantly associated with reduced odds of vitamin D deficiency. Vitamin D deficiency and insufficiency were prevalent in this AC population and is of considerable concern given the individual and societal implications of increased morbidity. Public health messaging for this group should focus on year-round vitamin D supplementation and increasing intakes of culturally appropriate vitamin D-rich foods. These data also support the urgent requirement for a revised vitamin D RNI for ethnic groups.
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Mendoza-Garcés L, Velázquez-Alva MC, Cabrer-Rosales MF, Arrieta-Cruz I, Gutiérrez-Juárez R, Irigoyen-Camacho ME. Vitamin D Deficiency is Associated with Handgrip Strength, Nutritional Status and T2DM in Community-Dwelling Older Mexican Women: A Cross-Sectional Study. Nutrients 2021; 13:736. [PMID: 33652581 PMCID: PMC7996586 DOI: 10.3390/nu13030736] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/22/2021] [Accepted: 02/22/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of this study was to evaluate the association between handgrip strength, nutritional status and vitamin D deficiency in Mexican community-dwelling older women. A cross sectional study in women ≥ 60 years-old was performed. Plasma 25-hydroxyvitamin D (25(OH)D) concentrations were measured by a quantitative immunoassay technique. Handgrip strength was assessed using a dynamometer, while nutritional status was assessed through the Full Mini Nutritional Assessment (Full-MNA). A total of 116 women participated in the study, their mean age was 70.3 ± 5.8 years; 49.1% of the study group had plasma 25(OH)D levels lower than 40 nmol/L [16 ng/mL]. Meanwhile, 28.45% of participants had low handgrip strength (<16 kg), and 23.1% were identified at risk of malnutrition/malnourished according with Full-MNA score. Women with 25(OH)D deficiency (<40 nmol/L [16 ng/mL]) were more likely to have low handgrip strength (OR = 2.64, p = 0.025) compared with those with higher 25(OH)D values. Additionally, being malnourished or at risk of malnutrition (OR = 2.53, p = 0.045) or having type 2 diabetes mellitus (T2DM) (OR = 2.92, p = 0.044) was also associated with low 25(OH)D. The prevalence of low plasma 25(OH)D concentrations was high among Mexican active older women. Low handgrip strength, being at risk of malnutrition/malnourished, or diagnosed with T2DM was also associated with Vitamin D deficiency.
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Affiliation(s)
| | - María Consuelo Velázquez-Alva
- Health Care Department, Metropolitan Autonomous University, Unit Xochimilco, Mexico City 04960, Mexico; (M.C.V.-A.); (M.F.C.-R.)
| | - María Fernanda Cabrer-Rosales
- Health Care Department, Metropolitan Autonomous University, Unit Xochimilco, Mexico City 04960, Mexico; (M.C.V.-A.); (M.F.C.-R.)
| | - Isabel Arrieta-Cruz
- National Institute of Geriatrics, Ministry of Health, Mexico City 10200, Mexico;
| | - Roger Gutiérrez-Juárez
- Department of Biomedical Sciences, School of Medicine, Faculty of Higher Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico;
| | - María Esther Irigoyen-Camacho
- Health Care Department, Metropolitan Autonomous University, Unit Xochimilco, Mexico City 04960, Mexico; (M.C.V.-A.); (M.F.C.-R.)
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Cetin Z, Baser O, Koseoglu D, Catak M. Does sufficient 25-hydroxyvitamin D mean lower metabolic risk for women? MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2020. [DOI: 10.3233/mnm-200432] [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
OBJECTIVE: There are conflicting results regarding the relationship between metabolic diseases and vitamin D deficiency. We aimed to show the possible relationship between 25-hydroxy (OH) vitamin D levels and obesity, insulin resistance and hyperlipidemia in women. MATERIALS AND METHODS: Three hundred fifty seven female were included retrospectively. Body mass index (BMI) was determined with body weight (kg)/height (m2) formula. Fasting plasma glucose, insulin, lipid profile, calcium, phosphorus, parathormone, 25 hydroxy vitamin D, thyroid stimulating hormone were evaluated. Insulin resistance was calculated with homeostatic model values for insulin resistance (HOMA-IR). Patients were grouped according to 25 (OH) vitamin D levels and BMIs. RESULTS: 25 (OH) vitamin D was negative correlated with BMI, insulin and HOMA-IR, (respectively r = –0.156, –0.128, –0.123 and p = 0.003, 0.015, 0.020). It is positive correlated with HDL and HDL/LDL ratio (respectively r = 0.183, 0.185 and p = 0.003, <0.001) HDL-C was higher in 25(OH) vitamin D sufficient group. After multivariate analysis, 25 (OH) vitamin D was still positively related with HDL and HDL/LDL ratio (respectively r = 0.127, 0.118 and p = <0.05). CONCLUSION: 25 (OH) Vitamin D is relationship with HDL, HDL/LDL ratio and invers relationship obesity. The normal 25 (OH) vitamin D supports the reduction of metabolik risk.
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Affiliation(s)
- Zeynep Cetin
- Amasya University Medical School Department of Internal Medicine, Division of Endocrinology and Metabolism, Amasya, Turkey
| | - Ozden Baser
- Yozgat City Hospital, Department of Endocrinology and Metabolism, Yozgat, Turkey
| | - Derya Koseoglu
- Hitit University Erol Olcok Education and Research Hospital, Department of Endocrinology and Metabolism, Corum, Turkey
| | - Merve Catak
- Tokat State Hospital, Department of Endocrinology and Metabolism, Tokat, Turkey
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Feige J, Moser T, Bieler L, Schwenker K, Hauer L, Sellner J. Vitamin D Supplementation in Multiple Sclerosis: A Critical Analysis of Potentials and Threats. Nutrients 2020; 12:nu12030783. [PMID: 32188044 PMCID: PMC7146466 DOI: 10.3390/nu12030783] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/10/2020] [Accepted: 03/13/2020] [Indexed: 12/15/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory demyelinating and neurodegenerative disease of the central nervous system (CNS). In recent years, vitamin D has gained attention, as low serum levels are suspected to increase the risk for MS. Cholecalciferol supplementation has been tested in several clinical trials, since hypovitaminosis D was linked to higher disease activity and may even play a role in long-term outcome. Here, we review the current understanding of the molecular effects of vitamin D beyond calcium homeostasis, the potential beneficial action in MS and hazards including complications of chronic and high-dose therapy. In clinical trials, doses of up to 40,000 IU/day were tested and appeared safe as add-on therapy for short-term periods. A recent meta-analysis of a randomized, double-blind, placebo-controlled clinical trial investigating vitamin D as add-on therapy in MS, however, suggested that vitamin D had no therapeutic effect on disability or relapse rate. We recognize a knowledge gap for chronic and high-dose therapy, which can lead to life-threatening complications related to vitamin D toxicity including renal failure, cardiac arrythmia and status epilepticus. Moreover, vitamin D toxicity may manifest as fatigue, muscle weakness or urinary dysfunction, which may mimic the natural course of progressive MS. Given these limitations, vitamin D supplementation in MS is a sensitive task which needs to be supervised by physicians. While there is strong evidence for vitamin D deficiency and the development of MS, the risk-benefit profile of dosage and duration of add-on supplementation needs to be further clarified.
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Affiliation(s)
- Julia Feige
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, 5020 Salzburg, Austria; (J.F.); (T.M.); (L.B.); (K.S.)
| | - Tobias Moser
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, 5020 Salzburg, Austria; (J.F.); (T.M.); (L.B.); (K.S.)
| | - Lara Bieler
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, 5020 Salzburg, Austria; (J.F.); (T.M.); (L.B.); (K.S.)
| | - Kerstin Schwenker
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, 5020 Salzburg, Austria; (J.F.); (T.M.); (L.B.); (K.S.)
| | - Larissa Hauer
- Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg;
| | - Johann Sellner
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, 5020 Salzburg, Austria; (J.F.); (T.M.); (L.B.); (K.S.)
- Department of Neurology, Klinikum rechts der Isar, Technische Universität München, 81675 München, Germany
- Department of Neurology, Landesklinikum Mistelbach-Gänserndorf, 2130 Mistelbach, Austria
- Correspondence: ; Tel.: +43-02572-9004-12850
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