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Dallavalasa S, Tulimilli SV, Bettada VG, Karnik M, Uthaiah CA, Anantharaju PG, Nataraj SM, Ramashetty R, Sukocheva OA, Tse E, Salimath PV, Madhunapantula SV. Vitamin D in Cancer Prevention and Treatment: A Review of Epidemiological, Preclinical, and Cellular Studies. Cancers (Basel) 2024; 16:3211. [PMID: 39335182 PMCID: PMC11430526 DOI: 10.3390/cancers16183211] [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: 08/08/2024] [Revised: 09/12/2024] [Accepted: 09/17/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND Inhibition of human carcinomas has previously been linked to vitamin D due to its effects on cancer cell proliferation, migration, angiogenesis, and apoptosis induction. The anticancer activity of vitamin D has been confirmed by several studies, which have shown that increased cancer incidence is associated with decreased vitamin D and that dietary supplementation of vitamin D slows down the growth of xenografted tumors in mice. Vitamin D inhibits the growth of cancer cells by the induction of apoptosis as well as by arresting the cells at the G0/G1 (or) G2/M phase of the cell cycle. Aim and Key Scientific Concepts of the Review: The purpose of this article is to thoroughly review the existing information and discuss and debate to conclude whether vitamin D could be used as an agent to prevent/treat cancers. The existing empirical data have demonstrated that vitamin D can also work in the absence of vitamin D receptors (VDRs), indicating the presence of multiple mechanisms of action for this sunshine vitamin. Polymorphism in the VDR is known to play a key role in tumor cell metastasis and drug resistance. Although there is evidence that vitamin D has both therapeutic and cancer-preventive properties, numerous uncertainties and concerns regarding its use in cancer treatment still exist. These include (a) increased calcium levels in individuals receiving therapeutic doses of vitamin D to suppress the growth of cancer cells; (b) hyperglycemia induction in certain vitamin D-treated study participants; (c) a dearth of evidence showing preventive or therapeutic benefits of cancer in clinical trials; (d) very weak support from proof-of-principle studies; and (e) the inability of vitamin D alone to treat advanced cancers. Addressing these concerns, more potent and less toxic vitamin D analogs have been created, and these are presently undergoing clinical trial evaluation. To provide key information regarding the functions of vitamin D and VDRs, this review provided details of significant advancements in the functional analysis of vitamin D and its analogs and VDR polymorphisms associated with cancers.
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Affiliation(s)
- Siva Dallavalasa
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - SubbaRao V Tulimilli
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Vidya G Bettada
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Medha Karnik
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Chinnappa A Uthaiah
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Preethi G Anantharaju
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Suma M Nataraj
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Rajalakshmi Ramashetty
- Department of Physiology, JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - Olga A Sukocheva
- Department of Hepatology, Royal Adelaide Hospital, Port Rd., Adelaide, SA 5000, Australia
| | - Edmund Tse
- Department of Hepatology, Royal Adelaide Hospital, Port Rd., Adelaide, SA 5000, Australia
| | - Paramahans V Salimath
- JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
| | - SubbaRao V Madhunapantula
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR) Laboratory (DST-FIST Supported Center and ICMR Collaborating Center of Excellence-ICMR-CCoE), Department of Biochemistry (DST-FIST Supported Department), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
- Special Interest Group in Cancer Biology and Cancer Stem Cells (SIG-CBCSC), JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru 570015, Karnataka, India
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Tijerina A, Garza A, López A, Cavazos N, Romo A, Heya MS, Bouzas C, Tur JA, Salas R. An HPLC-UV Method to Assess Human Plasma 25(OH)D 3. Nutrients 2024; 16:2304. [PMID: 39064747 PMCID: PMC11280100 DOI: 10.3390/nu16142304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/12/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
The aim of this study was to validate an HPLC-UV method to assess vitamin D status by determining the linearity and precision of the 25-hydroxyvitamin D3 (25(OH)D3) calibration curve, the limits of detection, quantitation and robustness of the method, and its accuracy. A second stock solution of 25(OH)D3 was prepared (500 ng/mL), and working dilutions (5, 10, 20, 30, 40, and 50 ng/mL) were prepared for a calibration curve. The HPLC equipment had a UV-Vis diode-array detector and utilized an AcclaimTM 120 C18 column (5 µm, 4.6 × 250 mm) with a flow rate of 1.2 mL/min, a column temperature of 30 °C, and the standards and samples were maintained at 4 °C, with an injection volume of 100 µL. Detection of 25(OH)D3 was determined at 265 nm, with a retention time of 4.0 min. The validation was conducted according to the FDA Validation of Analytical Procedures: Guidance for Industry. Vitamin D was extracted from plasma samples using acetonitrile (ACN)-0.1% formic acid (2:1 v/v), and the percentage of recovery was calculated. The proposed method conditions gave excellent linearity (R2 = 0.9989) and the linearity coefficient was R2 > 0.99 for 25(OH)D3. The detection and quantification limits were 1.1703 ng/mL and 3.5462 ng/mL, respectively. Decreasing or increasing the reading temperature by 1 °C decreased the response units (AU) of vitamin D, 25(OH)D3. When the current flow rate decreased by 0.2 mL/min (1.0 mL/min), the retention time increased to 4.913 min, whereas an increase of 0.2 mL/min of the proposed flow rate (1.4 mL/min) decreased the retention time to 3.500 min. The percentage of recovery varied from 92.2% to 97.1%. The proposed method to quantify a vitamin D metabolite (25(OH)D3) in human plasma samples was reliable and validated.
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Affiliation(s)
- Alexandra Tijerina
- Faculty of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
| | - Aurora Garza
- Faculty of Medicine, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
| | - Abad López
- Faculty of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
| | - Norma Cavazos
- Faculty of Medicine, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
| | - Ana Romo
- Faculty of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
| | - Michel S. Heya
- Faculty of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
| | - Cristina Bouzas
- Research Group on Community Nutrition and Oxidative Stress, University of Balearic Islands—IUNICS, IDISBA & CIBEROBN, Guillem Colom Bldg, Campus, 07122 Palma de Mallorca, Spain
- Health Institute of the Balearic Islands (IDISBA), 07120 Palma de Mallorca, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain
| | - Josep A. Tur
- Research Group on Community Nutrition and Oxidative Stress, University of Balearic Islands—IUNICS, IDISBA & CIBEROBN, Guillem Colom Bldg, Campus, 07122 Palma de Mallorca, Spain
- Health Institute of the Balearic Islands (IDISBA), 07120 Palma de Mallorca, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain
| | - Rogelio Salas
- Faculty of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey 64460, NL, Mexico
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Zhang P, Xu Q, Zhu R. Vitamin D and allergic diseases. Front Immunol 2024; 15:1420883. [PMID: 39026686 PMCID: PMC11254667 DOI: 10.3389/fimmu.2024.1420883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 06/24/2024] [Indexed: 07/20/2024] Open
Abstract
In recent years, the relationship between vitamin D and allergic diseases has received widespread attention. As a fat-soluble vitamin, vitamin D plays a crucial role in regulating the immune system and may influence the onset and progression of diseases such as atopic dermatitis, allergic rhinitis, and asthma. To understand the underlying mechanisms, we have summarized the current research on the association between vitamin D and allergic diseases. We also discuss the impact of vitamin D on the immune system and its role in the course of allergic diseases, particularly focusing on how vitamin D supplementation affects the treatment outcomes of these conditions. We aim to provide a theoretical basis and practical guidance for optimizing the management and treatment of allergic diseases by modulating vitamin D levels.
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Affiliation(s)
- Panyu Zhang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingxiu Xu
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rongfei Zhu
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Allergy and Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Berry SPDG, Honkpèhedji YJ, Ludwig E, Mahmoudou S, Prodjinotho UF, Adamou R, Nouatin OP, Adégbitè BR, Dejon-Agobe JC, Mba RB, Maloum M, Nkoma AMM, Zinsou JF, Luty AJF, Esen M, Adégnika AA, Prazeres da Costa C. Impact of helminth infections during pregnancy on maternal and newborn Vitamin D and on birth outcomes. Sci Rep 2024; 14:14845. [PMID: 38937587 PMCID: PMC11211496 DOI: 10.1038/s41598-024-65232-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024] Open
Abstract
Poor birth outcomes in low- and middle income countries are associated with maternal vitamin D deficiency and chronic helminth infections. Here, we investigated whether maternal Schistosoma haematobium affects maternal or cord vitamin D status as well as birth outcomes. In a prospective cross-sectional study of pregnant women conducted in Lambaréné, Gabon, we diagnosed maternal parasitic infections in blood, urine and stool. At delivery we measured vitamin D in maternal and cord blood. S. haematobium, soil-transmitted helminths, and microfilariae were found at prevalences of 30.2%, 13.0%, and 8.8%, respectively. Insufficient vitamin D and calcium levels were found in 28% and 15% of mothers, and in 11.5% and 1.5% of newborns. Mothers with adequate vitamin D had lower risk of low birthweight babies (aOR = 0.11, 95% CI 0.02-0.52, p = 0.01), whilst offspring of primipars had low cord vitamin D levels, and low vitamin D levels increased the risk of maternal inflammation. Maternal filariasis was associated with low calcium levels, but other helminth infections affected neither vitamin D nor calcium levels in either mothers or newborns. Healthy birth outcomes require maintenance of adequate vitamin D and calcium levels. Chronic maternal helminth infections do not disrupt those levels in a semi-rural setting in sub-Saharan Africa.
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Affiliation(s)
- Sèyigbéna P Déo-Gracias Berry
- Institute for Medical Microbiology, Immunology and Hygiene, TUM School of Medicine and Health, Technical University of Munich (TUM), Trogerstrasse 30, 81675, Munich, Germany
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Center for Global Health, TUM School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany
| | - Yabo Josiane Honkpèhedji
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Centre, Leiden, The Netherlands
- Institut Für Tropenmedizin, Universität Tübingen, Tübingen, Germany
- Fondation Pour La Recherche Scientifique (FORS), Cotonou, Benin
| | - Esther Ludwig
- Institute for Medical Microbiology, Immunology and Hygiene, TUM School of Medicine and Health, Technical University of Munich (TUM), Trogerstrasse 30, 81675, Munich, Germany
- Center for Global Health, TUM School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany
| | | | - Ulrich Fabien Prodjinotho
- Institute for Medical Microbiology, Immunology and Hygiene, TUM School of Medicine and Health, Technical University of Munich (TUM), Trogerstrasse 30, 81675, Munich, Germany
- Center for Global Health, TUM School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany
| | - Rafiou Adamou
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | - Odilon P Nouatin
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Bayode R Adégbitè
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut Für Tropenmedizin, Universität Tübingen, Tübingen, Germany
| | - Jean Claude Dejon-Agobe
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut Für Tropenmedizin, Universität Tübingen, Tübingen, Germany
| | - Romuald Beh Mba
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | | | | | - Jeannot Fréjus Zinsou
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut Für Tropenmedizin, Universität Tübingen, Tübingen, Germany
- Fondation Pour La Recherche Scientifique (FORS), Cotonou, Benin
| | | | - Meral Esen
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut Für Tropenmedizin, Universität Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner site Tübingen, Tübingen, Germany
| | - Ayôla Akim Adégnika
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut Für Tropenmedizin, Universität Tübingen, Tübingen, Germany
- Fondation Pour La Recherche Scientifique (FORS), Cotonou, Benin
- German Center for Infection Research (DZIF), Partner site Tübingen, Tübingen, Germany
| | - Clarissa Prazeres da Costa
- Institute for Medical Microbiology, Immunology and Hygiene, TUM School of Medicine and Health, Technical University of Munich (TUM), Trogerstrasse 30, 81675, Munich, Germany.
- Center for Global Health, TUM School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany.
- German Center for Infection Research (DZIF), Partner site Munich, Munich, Germany.
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Meyer MB, Lee SM, Cichanski SR, Cobice DF, Pike JW. Spatial detection and consequences of nonrenal calcitriol production as assessed by targeted mass spectrometry imaging. JCI Insight 2024; 9:e181763. [PMID: 38916957 PMCID: PMC11383599 DOI: 10.1172/jci.insight.181763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 06/20/2024] [Indexed: 06/27/2024] Open
Abstract
The immune benefits of vitamin D3 supplementation beyond calcium and phosphate maintenance are highly clinically debated. Kidney expression of CYP27B1 is the source of endocrine, circulating 1,25(OH)2D3 (active form of vitamin D) that maintains serum calcium and phosphate. 1,25(OH)2D3 may also be made by the CYP27B1 enzyme in nonrenal cells, like immune cells, in a process driven by cellular availability of 25(OH)D3 and inflammation. Due to the endocrine nature of 1,25(OH)2D3 in circulation, it is difficult to discern between these 2 sources. We recently created a regulatory deletion model of Cyp27b1 (M1/M21-DIKO) where mice have normal inflammatory-regulated Cyp27b1 expression in nonrenal tissues (unlike global Cyp27b1-KO) but no expression within the kidney. Here, utilizing on-tissue chemical derivatization and matrix assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI), we investigated the distribution of 1,25(OH)2D3 and 25(OH)D3 in the kidney, liver, spleen, and thymus. MALDI-MSI demonstrated increased 1,25(OH)2D3 in nonrenal tissues such as the spleen after vitamin D3 supplementation in M1/M21-DIKO mice. Additionally, from this, we found increased Il4 and decreased Tnfa in the spleen after vitamin D3 supplementation. Taken together, these data demonstrate nonrenal production of 1,25(OH)2D3 in vivo and provide a consequence of vitamin D3 supplementation and nonrenal 1,25(OH)2D3 production in cytokine changes.
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Affiliation(s)
- Mark B Meyer
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Seong Min Lee
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Shannon R Cichanski
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Diego F Cobice
- Mass Spectrometry Centre, Biomedical Sciences Research Institute (BMSRI), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - J Wesley Pike
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Wimalawansa SJ. Physiology of Vitamin D-Focusing on Disease Prevention. Nutrients 2024; 16:1666. [PMID: 38892599 PMCID: PMC11174958 DOI: 10.3390/nu16111666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/21/2024] Open
Abstract
Vitamin D is a crucial micronutrient, critical to human health, and influences many physiological processes. Oral and skin-derived vitamin D is hydroxylated to form calcifediol (25(OH)D) in the liver, then to 1,25(OH)2D (calcitriol) in the kidney. Alongside the parathyroid hormone, calcitriol regulates neuro-musculoskeletal activities by tightly controlling blood-ionized calcium concentrations through intestinal calcium absorption, renal tubular reabsorption, and skeletal mineralization. Beyond its classical roles, evidence underscores the impact of vitamin D on the prevention and reduction of the severity of diverse conditions such as cardiovascular and metabolic diseases, autoimmune disorders, infection, and cancer. Peripheral target cells, like immune cells, obtain vitamin D and 25(OH)D through concentration-dependent diffusion from the circulation. Calcitriol is synthesized intracellularly in these cells from these precursors, which is crucial for their protective physiological actions. Its deficiency exacerbates inflammation, oxidative stress, and increased susceptibility to metabolic disorders and infections; deficiency also causes premature deaths. Thus, maintaining optimal serum levels above 40 ng/mL is vital for health and disease prevention. However, achieving it requires several times more than the government's recommended vitamin D doses. Despite extensive published research, recommended daily intake and therapeutic serum 25(OH)D concentrations have lagged and are outdated, preventing people from benefiting. Evidence suggests that maintaining the 25(OH)D concentrations above 40 ng/mL with a range of 40-80 ng/mL in the population is optimal for disease prevention and reducing morbidities and mortality without adverse effects. The recommendation for individuals is to maintain serum 25(OH)D concentrations above 50 ng/mL (125 nmol/L) for optimal clinical outcomes. Insights from metabolomics, transcriptomics, and epigenetics offer promise for better clinical outcomes from vitamin D sufficiency. Given its broader positive impact on human health with minimal cost and little adverse effects, proactively integrating vitamin D assessment and supplementation into clinical practice promises significant benefits, including reduced healthcare costs. This review synthesized recent novel findings related to the physiology of vitamin D that have significant implications for disease prevention.
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Fang A, Zhao Y, Yang P, Zhang X, Giovannucci EL. Vitamin D and human health: evidence from Mendelian randomization studies. Eur J Epidemiol 2024; 39:467-490. [PMID: 38214845 DOI: 10.1007/s10654-023-01075-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 10/30/2023] [Indexed: 01/13/2024]
Abstract
We summarized the current evidence on vitamin D and major health outcomes from Mendelian randomization (MR) studies. PubMed and Embase were searched for original MR studies on vitamin D in relation to any health outcome from inception to September 1, 2022. Nonlinear MR findings were excluded due to concerns about the validity of the statistical methods used. A meta-analysis was preformed to synthesize study-specific estimates after excluding overlapping samples, where applicable. The methodological quality of the included studies was evaluated according to the STROBE-MR checklist. A total of 133 MR publications were eligible for inclusion in the analyses. The causal association between vitamin D status and 275 individual outcomes was examined. Linear MR analyses showed genetically high 25-hydroxyvitamin D (25(OH)D) concentrations were associated with reduced risk of multiple sclerosis incidence and relapse, non-infectious uveitis and scleritis, psoriasis, femur fracture, leg fracture, amyotrophic lateral sclerosis, anorexia nervosa, delirium, heart failure, ovarian cancer, non-alcoholic fatty liver disease, dyslipidemia, and bacterial pneumonia, but increased risk of Behçet's disease, Graves' disease, kidney stone disease, fracture of radium/ulna, basal cell carcinoma, and overall cataracts. Stratified analyses showed that the inverse association between genetically predisposed 25(OH)D concentrations and multiple sclerosis risk was significant and consistent regardless of the genetic instruments GIs selected. However, the associations with most of the other outcomes were only pronounced when using genetic variants not limited to those in the vitamin D pathway as GIs. The methodological quality of the included MR studies was substantially heterogeneous. Current evidence from linear MR studies strongly supports a causal role of vitamin D in the development of multiple sclerosis. Suggestive support for a number of other health conditions could help prioritize conditions where vitamin D may be beneficial or harmful.
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Affiliation(s)
- Aiping Fang
- Department of Nutrition, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou, China
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Yue Zhao
- Department of Nutrition, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Ping Yang
- School of Nursing, Peking University, Beijing, China
- School of Nursing, Johns Hopkins University, Baltimore, MD, USA
| | - Xuehong Zhang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Edward L Giovannucci
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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Aggeletopoulou I, Tsounis EP, Triantos C. Vitamin D and Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD): Novel Mechanistic Insights. Int J Mol Sci 2024; 25:4901. [PMID: 38732118 PMCID: PMC11084591 DOI: 10.3390/ijms25094901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/23/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is an increasingly prevalent condition characterized by abnormal fat accumulation in the liver, often associated with metabolic disorders. Emerging evidence suggests a potential link between vitamin D deficiency and the development and progression of MASLD. The current review provides a concise overview of recent studies uncovering novel mechanistic insights into the interplay between vitamin D and MASLD. Several epidemiological studies have highlighted a significant association between low vitamin D levels and an increased risk of MASLD. Vitamin D, traditionally known for its role in bone health, has now been recognized as a key player in various physiological processes, including immune regulation and inflammation. Experimental studies using animal models have demonstrated that vitamin D deficiency exacerbates liver steatosis and inflammation, suggesting a potential protective role against MASLD. Mechanistically, vitamin D appears to modulate MASLD through multiple pathways. Firstly, the vitamin D receptor (VDR) is abundantly expressed in liver cells, indicating a direct regulatory role in hepatic function. Activation of the VDR has been shown to suppress hepatic lipid accumulation and inflammation, providing a mechanistic basis for the observed protective effects. Additionally, vitamin D influences insulin sensitivity, a critical factor in MASLD pathogenesis. Improved insulin sensitivity may mitigate the excessive accumulation of fat in the liver, thus attenuating MASLD progression. In parallel, vitamin D exhibits anti-inflammatory properties by inhibiting pro-inflammatory cytokines implicated in MASLD pathophysiology. Experimental evidence suggests that the immunomodulatory effects of vitamin D extend to the liver, reducing inflammation and oxidative stress, key drivers of MASLD, and the likelihood of hepatocyte injury and fibrosis. Understanding the complex interplay between vitamin D and MASLD provides a basis for exploring targeted therapeutic strategies and preventive interventions. As vitamin D deficiency is a modifiable risk factor, addressing this nutritional concern may prove beneficial in mitigating the burden of MASLD and associated metabolic disorders.
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Affiliation(s)
| | | | - Christos Triantos
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, 26504 Patras, Greece; (I.A.); (E.P.T.)
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Cutuli SL, Ferrando ES, Cammarota F, Franchini E, Caroli A, Lombardi G, Tanzarella ES, Grieco DL, Antonelli M, De Pascale G. Update on vitamin D role in severe infections and sepsis. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE 2024; 4:4. [PMID: 38263252 PMCID: PMC10804708 DOI: 10.1186/s44158-024-00139-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/09/2024] [Indexed: 01/25/2024]
Abstract
Severe infections frequently require admission to the intensive care unit and cause life-threatening complications in critically ill patients. In this setting, severe infections are acknowledged as prerequisites for the development of sepsis, whose pathophysiology implies a dysregulated host response to pathogens, leading to disability and mortality worldwide.Vitamin D is a secosteroid hormone that plays a pivotal role to maintain immune system homeostasis, which is of paramount importance to resolve infection and modulate the burden of sepsis. Specifically, vitamin D deficiency has been widely reported in critically ill patients and represents a risk factor for the development of severe infections, sepsis and worse clinical outcomes. Several studies have demonstrated the feasibility, safety and effectiveness of vitamin D supplementation strategies to improve vitamin D body content, but conflictual results support its benefit in general populations of critically ill patients. In contrast, small randomised clinical trials reported that vitamin D supplementation may improve host-defence to pathogen invasion via the production of cathelicidin and specific cytokines. Nonetheless, no large scale investigations have been designed to specifically assess the impact of vitamin D supplementation on the outcome of critically ill septic patients admitted to the intensive care unit.
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Affiliation(s)
- Salvatore Lucio Cutuli
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Fabiola Cammarota
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Emanuele Franchini
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alessandro Caroli
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gianmarco Lombardi
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Eloisa Sofia Tanzarella
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Domenico Luca Grieco
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Massimo Antonelli
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gennaro De Pascale
- Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
- Istituto Di Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Rome, Italy.
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Finn RM, Kule A, Young K, Rech M. Impact of pre-admission vitamin D supplementation on mortality in septic patients. J Intensive Care Soc 2023; 24:6-8. [PMID: 37928094 PMCID: PMC10621500 DOI: 10.1177/1751143719896560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023] Open
Affiliation(s)
- Ryan M Finn
- Mayo Clinic, Department of Emergency Medicine, Rochester, MN, USA
| | - Amy Kule
- Loyola University Health System, Maywood, IL, USA
| | - Katie Young
- Loyola University Health System, Maywood, IL, USA
| | - Megan Rech
- Loyola University Health System, Maywood, IL, USA
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11
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Stawicki MK, Abramowicz P, Sokolowska G, Wołejszo S, Grant WB, Konstantynowicz J. Can vitamin D be an adjuvant therapy for juvenile rheumatic diseases? Rheumatol Int 2023; 43:1993-2009. [PMID: 37566255 PMCID: PMC10495493 DOI: 10.1007/s00296-023-05411-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 07/27/2023] [Indexed: 08/12/2023]
Abstract
Vitamin D, known for its essential role in calcium and bone homeostasis, has multiple effects beyond the skeleton, including regulation of immunity and modulation of autoimmune processes. Several reports have shown suboptimal serum 25 hydroxyvitamin D [25(OH)D] levels in people with different inflammatory and autoimmune rheumatic conditions, and an association between 25(OH)D levels, disease activity and outcomes. Although most available data pertain to adults, insights often are extended to children. Juvenile rheumatic diseases (JRDs) are a significant health problem during growth because of their complex pathogenesis, chronic nature, multisystemic involvement, and long-term consequences. So far, there is no definitive or clear evidence to confirm the preventive or therapeutic effect of vitamin D supplementation in JRDs, because results from randomized controlled trials (RCTs) have produced inconsistent outcomes. This review aims to explore and discuss the potential role of vitamin D in treating selected JRDs. Medline/PubMed, EMBASE, and Scopus were comprehensively searched in June 2023 for any study on vitamin D supplementary role in treating the most common JRDs. We used the following keywords: "vitamin D" combined with the terms "juvenile idiopathic arthritis", "juvenile systemic scleroderma", "juvenile systemic lupus erythematosus", "juvenile inflammatory myopathies", "Behcet disease", "periodic fever syndromes" and "juvenile rheumatic diseases". Observational studies have found that serum 25(OH)D concentrations are lower in juvenile idiopathic arthritis, juvenile systemic lupus erythematosus, juvenile systemic scleroderma, Behcet disease and proinflammatory cytokine concentrations are higher. This suggests that vitamin D supplementation might be beneficial, however, current data are insufficient to confirm definitively the complementary role of vitamin D in the treatment of JRDs. Considering the high prevalence of vitamin D deficiency worldwide, children and adolescents should be encouraged to supplement vitamin D according to current recommendations. More interventional studies, especially well-designed RCTs, assessing the dose-response effect and adjuvant effect in specific diseases, are needed to determine the potential significance of vitamin D in JRDs treatment.
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Affiliation(s)
- Maciej K. Stawicki
- Department of Pediatrics, Rheumatology, Immunology, and Metabolic Bone Diseases, Medical University of Bialystok, University Children’s Clinical Hospital in Bialystok, Waszyngtona Street 17, 15274 Bialystok, Poland
| | - Paweł Abramowicz
- Department of Pediatrics, Rheumatology, Immunology, and Metabolic Bone Diseases, Medical University of Bialystok, University Children’s Clinical Hospital in Bialystok, Waszyngtona Street 17, 15274 Bialystok, Poland
| | | | - Sebastian Wołejszo
- Department of Pediatrics, Rheumatology, Immunology, and Metabolic Bone Diseases, Medical University of Bialystok, University Children’s Clinical Hospital in Bialystok, Waszyngtona Street 17, 15274 Bialystok, Poland
| | - William B. Grant
- Sunlight, Nutrition, and Health Research Center, San Francisco, CA USA
| | - Jerzy Konstantynowicz
- Department of Pediatrics, Rheumatology, Immunology, and Metabolic Bone Diseases, Medical University of Bialystok, University Children’s Clinical Hospital in Bialystok, Waszyngtona Street 17, 15274 Bialystok, Poland
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12
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Hasan M, Oster M, Reyer H, Wimmers K, Fischer DC. Efficacy of dietary vitamin D 3 and 25(OH)D 3 on reproductive capacities, growth performance, immunity and bone development in pigs. Br J Nutr 2023; 130:1298-1307. [PMID: 36847163 PMCID: PMC10511684 DOI: 10.1017/s0007114523000442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 03/01/2023]
Abstract
Vitamin D3 (Vit D3) and 25(OH)D3 are used as dietary sources of active vitamin D (1,25(OH)2D3) in pig husbandry. Although acting primarily on intestine, kidney and bone, their use in pig nutrition has shown a wide range of effects also in peripheral tissues. However, there is an ambiguity in the existing literature about whether the effects of Vit D3 and 25(OH)D3 differ in attributing the molecular and phenotypic outcomes in pigs. We searched Web of Science and PubMed databases concerning the efficacy of Vit D3 in comparison with 25(OH)D3 on pig physiology, i.e. reproductive capacities, growth performance, immunity and bone development. Dietary intake of Vit D3 or 25(OH)D3 did not influence the reproductive capacity of sows. Unlike Vit D3, the maternal intake of 25(OH)D3 significantly improved the growth performance of piglets, which might be attributed to maternally induced micronutrient efficiency. Consequently, even in the absence of maternal vitamin D supplementation, 25(OH)D3-fed offspring also demonstrated better growth than the offspring received Vit D3. Moreover, a similar superior impact of 25(OH)D3 was seen with respect to serum markers of innate and humoral immunity. Last but not least, supplements containing 25(OH)D3 were found to be more effective than Vit D3 to improve bone mineralisation and formation, especially in pigs receiving basal diets low in Ca and phosphorus. The insights are of particular value in determining the principal dietary source of vitamin D to achieve its optimum utilisation efficiency, nutritional benefits and therapeutic potency and to further improve animal welfare across different management types.
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Affiliation(s)
- Maruf Hasan
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196Dummerstorf, Germany
- Department of Pediatrics, Rostock University Hospital, Ernst-Heydemann-Str. 8, 18057Rostock, Germany
| | - Michael Oster
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196Dummerstorf, Germany
| | - Henry Reyer
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196Dummerstorf, Germany
| | - Klaus Wimmers
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196Dummerstorf, Germany
- Faculty of Agricultural and Environmental Sciences, Justus-von-Liebig-Weg 6b, University of Rostock, 18059Rostock, Germany
| | - Dagmar-Christiane Fischer
- Department of Pediatrics, Rostock University Hospital, Ernst-Heydemann-Str. 8, 18057Rostock, Germany
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13
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Wimalawansa SJ. Infections and Autoimmunity-The Immune System and Vitamin D: A Systematic Review. Nutrients 2023; 15:3842. [PMID: 37686873 PMCID: PMC10490553 DOI: 10.3390/nu15173842] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Both 25-autoimmunity and(25(OH)D: calcifediol) and its active form, 1,25-dihydroxyvitamin D (1,25(OH)2D: calcitriol), play critical roles in protecting humans from invasive pathogens, reducing risks of autoimmunity, and maintaining health. Conversely, low 25(OH)D status increases susceptibility to infections and developing autoimmunity. This systematic review examines vitamin D's mechanisms and effects on enhancing innate and acquired immunity against microbes and preventing autoimmunity. The study evaluated the quality of evidence regarding biology, physiology, and aspects of human health on vitamin D related to infections and autoimmunity in peer-reviewed journal articles published in English. The search and analyses followed PRISMA guidelines. Data strongly suggested that maintaining serum 25(OH)D concentrations of more than 50 ng/mL is associated with significant risk reduction from viral and bacterial infections, sepsis, and autoimmunity. Most adequately powered, well-designed, randomized controlled trials with sufficient duration supported substantial benefits of vitamin D. Virtually all studies that failed to conclude benefits or were ambiguous had major study design errors. Treatment of vitamin D deficiency costs less than 0.01% of the cost of investigation of worsening comorbidities associated with hypovitaminosis D. Despite cost-benefits, the prevalence of vitamin D deficiency remains high worldwide. This was clear among those who died from COVID-19 in 2020/21-most had severe vitamin D deficiency. Yet, the lack of direction from health agencies and insurance companies on using vitamin D as an adjunct therapy is astonishing. Data confirmed that keeping an individual's serum 25(OH)D concentrations above 50 ng/mL (125 nmol/L) (and above 40 ng/mL in the population) reduces risks from community outbreaks, sepsis, and autoimmune disorders. Maintaining such concentrations in 97.5% of people is achievable through daily safe sun exposure (except in countries far from the equator during winter) or taking between 5000 and 8000 IU vitamin D supplements daily (average dose, for non-obese adults, ~70 to 90 IU/kg body weight). Those with gastrointestinal malabsorption, obesity, or on medications that increase the catabolism of vitamin D and a few other specific disorders require much higher intake. This systematic review evaluates non-classical actions of vitamin D, with particular emphasis on infection and autoimmunity related to the immune system.
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Affiliation(s)
- Sunil J Wimalawansa
- Medicine, Endocrinology & Nutrition, Cardiometabolic & Endocrine Institute, North Brunswick, NJ 08902, USA
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14
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Su YW, Lee AMC, Xu X, Hua B, Tapp H, Wen XS, Xian CJ. Methotrexate Chemotherapy Causes Growth Impairments, Vitamin D Deficiency, Bone Loss, and Altered Intestinal Metabolism-Effects of Calcitriol Supplementation. Cancers (Basel) 2023; 15:4367. [PMID: 37686643 PMCID: PMC10486381 DOI: 10.3390/cancers15174367] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
Vitamin D deficiency or insufficiency is prevalent in childhood cancer patients and survivors after chemotherapy; further studies are needed to investigate the underlying aetiology and effectiveness of vitamin D supplementation in preventing chemotherapy-induced bone loss. This study used a rat model of treatment with antimetabolite methotrexate to investigate whether methotrexate chemotherapy causes vitamin D deficiency and if vitamin D supplementation attenuates the resultant bone loss. Methotrexate treatment (five daily injections) decreased serum vitamin D levels (from 52 to <30 ng/mL), reduced body and bone lengthening and tibial trabecular bone volume, and altered intestinal vitamin D metabolism, which was associated with intestinal mucosal damage known to cause malabsorption of nutrients, including dietary vitamin D and calcium. During the early stage after chemotherapy, mRNA expression increased for vitamin D activation enzyme CYP27B1 and for calcium-binding protein TRPV6 in the intestine. During the intestinal healing stage, expression of vitamin D catabolism enzyme CYP24 increased, and that of TRPV6 was normalised. Furthermore, subcutaneous calcitriol supplementation diminished methotrexate-induced bone loss due to its effect suppressing methotrexate-induced increased bone resorption. Thus, in young rats, methotrexate chemotherapy causes vitamin D deficiency, growth impairments, bone loss, and altered intestinal vitamin D metabolism, which are associated with intestinal damage, and vitamin D supplementation inhibits methotrexate-induced bone loss.
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Affiliation(s)
- Yu-Wen Su
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (Y.-W.S.); (A.M.C.L.); (X.X.); (B.H.)
| | - Alice M. C. Lee
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (Y.-W.S.); (A.M.C.L.); (X.X.); (B.H.)
| | - Xukang Xu
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (Y.-W.S.); (A.M.C.L.); (X.X.); (B.H.)
| | - Belinda Hua
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (Y.-W.S.); (A.M.C.L.); (X.X.); (B.H.)
| | - Heather Tapp
- Department of Haematology & Oncology, Women’s and Children’s Hospital, North Adelaide, SA 5006, Australia;
| | - Xue-Sen Wen
- School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
| | - Cory J. Xian
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (Y.-W.S.); (A.M.C.L.); (X.X.); (B.H.)
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15
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Xu SM, Lu K, Yang XF, Ye YW, Xu MZ, Shi Q, Gong YQ, Li C. Association of 25-hydroxyvitamin D levels with lipid profiles in osteoporosis patients: a retrospective cross-sectional study. J Orthop Surg Res 2023; 18:597. [PMID: 37574564 PMCID: PMC10424460 DOI: 10.1186/s13018-023-04079-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/05/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND In the literature, scarce data investigate the link between 25-hydroxyvitamin D (25[OH]D) and blood lipids in the osteoporosis (OP) population. 25(OH)D, as a calcium-regulating hormone, can inhibit the rise of parathyroid hormone, increase bone mineralization to prevent bone loss, enhance muscle strength, improve balance, and prevent falls in the elderly. This retrospective cross-sectional study aimed to investigate the association between serum 25(OH)D levels and lipid profiles in patients with osteoporosis, with the objective of providing insight for appropriate vitamin D supplementation in clinical settings to potentially reduce the incidence of cardiovascular disease, which is known to be a major health concern for individuals with osteoporosis. METHODS This is a retrospective cross-sectional study from the Affiliated Kunshan Hospital of Jiangsu University, including 2063 OP patients who received biochemical blood analysis of lipids during hospitalization from January 2015 to March 2022. The associations between serum lipids and 25(OH)D levels were examined by multiple linear regression. The dependent variables in the analysis were the concentrations of serum lipoprotein, total cholesterol (TC), triglycerides (TGs), apolipoprotein-A, lipoprotein A, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol (LDL-C). The independent variable was the concentration of blood serum 25(OH)D. At the same time, age, body mass index, sex, time and year of serum analysis, primary diagnosis, hypertension, diabetes, statins usage, beta-C-terminal telopeptide of type I collagen, procollagen type I N-terminal propeptide were covariates. Blood samples were collected in the early morning after the overnight fasting and were analyzed using an automated electrochemiluminescence immunoassay on the LABOSPECT 008AS platform (Hitachi Hi-Tech Co., Ltd., Tokyo, Japan). The generalized additive model was further applied for nonlinear associations. The inception result for smoothing the curve was evaluated by two-piecewise linear regression exemplary. RESULTS Our results proved that in the OP patients, the serum 25(OH)D levels were inversely connected with blood TGs concentration, whereas they were positively associated with the HDL, apolipoprotein-A, and lipoprotein A levels. In the meantime, this research also found a nonlinear relationship and threshold effect between serum 25(OH)D and TC, LDL-C. Furthermore, there were positive correlations between the blood serum 25(OH)D levels and the levels of TC and LDL-C when 25(OH)D concentrations ranged from 0 to 10.04 ng/mL. However, this relationship was not present when 25(OH)D levels were higher than 10.04 ng/mL. CONCLUSIONS Our results demonstrated an independent relationship between blood lipids and vitamin D levels in osteoporosis patients. While we cannot establish a causal relationship between the two, our findings suggest that vitamin D may have beneficial effects on both bone health and blood lipid levels, providing a reference for improved protection against cardiovascular disease in this population. Further research, particularly interventional studies, is needed to confirm these associations and investigate their underlying mechanisms.
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Affiliation(s)
- Si-ming Xu
- Department of Orthopedics, Gusu School, Nanjing Medical University, The First People’s Hospital of Kunshan, Suzhou, 215300 Jiangsu China
| | - Ke Lu
- Department of Orthopedics, Gusu School, Nanjing Medical University, The First People’s Hospital of Kunshan, Suzhou, 215300 Jiangsu China
| | - Xu-feng Yang
- Department of Orthopedics, Affiliated Kunshan Hospital of Jiangsu University, No. 566 East of Qianjin Road, Suzhou, 215300 Jiangsu China
| | - Yao-wei Ye
- Department of Orthopedics, Gusu School, Nanjing Medical University, The First People’s Hospital of Kunshan, Suzhou, 215300 Jiangsu China
| | - Min-zhe Xu
- Department of Orthopedics, Affiliated Kunshan Hospital of Jiangsu University, No. 566 East of Qianjin Road, Suzhou, 215300 Jiangsu China
| | - Qin Shi
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute of Soochow University, Suzhou, 215031 Jiangsu China
| | - Ya-qin Gong
- Information Department, Affiliated Kunshan Hospital of Jiangsu University, Suzhou, 215300 Jiangsu China
| | - Chong Li
- Department of Orthopedics, Affiliated Kunshan Hospital of Jiangsu University, No. 566 East of Qianjin Road, Suzhou, 215300 Jiangsu China
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16
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Ruiz-García A, Pallarés-Carratalá V, Turégano-Yedro M, Torres F, Sapena V, Martin-Gorgojo A, Martin-Moreno JM. Vitamin D Supplementation and Its Impact on Mortality and Cardiovascular Outcomes: Systematic Review and Meta-Analysis of 80 Randomized Clinical Trials. Nutrients 2023; 15:nu15081810. [PMID: 37111028 PMCID: PMC10146299 DOI: 10.3390/nu15081810] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/01/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND The impact of vitamin D supplementation on cardiovascular outcomes and mortality risk reduction remains unclear due to conflicting study findings. METHODS We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs), published between 1983 and 2022, that reported the effect of vitamin D supplementation in adults versus placebo or no treatment on all-cause mortality (ACM), cardiovascular mortality (CVM), non-cardiovascular mortality (non-CVM), and cardiovascular morbidities. Only studies with a follow-up period longer than one year were included. The primary outcomes were ACM and CVM. Secondary outcomes were non-CVM, myocardial infarction, stroke, heart failure, and major or extended adverse cardiovascular events. Subgroup analyses were performed according to low-, fair- and good-quality RCTs. RESULTS Eighty RCTs were assessed, including 82,210 participants receiving vitamin D supplementation and 80,921 receiving placebo or no treatment. The participants' mean (SD) age was 66.1 (11.2) years, and 68.6% were female. Vitamin D supplementation was associated with a lower risk of ACM (OR: 0.95 [95%CI 0.91-0.99] p = 0.013), was close to statistical significance for a lower risk of non-CVM (OR: 0.94 [95%CI 0.87-1.00] p = 0.055), and was not statistically associated with a lower risk of any cardiovascular morbi-mortality outcome. Meta-analysis of low-quality RCTs showed no association with cardiovascular or non-cardiovascular morbi-mortality outcomes. CONCLUSIONS The emerging results of our meta-analysis present evidence that vitamin D supplementation appears to decrease the risk of ACM (especially convincing in the fair- and good-quality RCTs), while not showing a decrease in the specific cardiovascular morbidity and mortality risk. Thus, we conclude that further research is warranted in this area, with well-planned and executed studies as the basis for more robust recommendations.
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Affiliation(s)
- Antonio Ruiz-García
- Lipids and Cardiovascular Prevention Unit, Pinto University Health Center, 28320 Madrid, Spain
- Department of Medicine, European University of Madrid, 28670 Madrid, Spain
| | - Vicente Pallarés-Carratalá
- Health Surveillance Unit, Castellón Mutual Insurance Union, 12003 Castellón, Spain
- Department of Medicine, Universitat Jaume I, 12006 Castellón, Spain
| | | | - Ferran Torres
- Biostatistics Unit, Medical School, Universitat Autònoma de Barcelona Bellaterra, 08193 Barcelona, Spain
| | - Víctor Sapena
- Biostatistics Unit, Medical School, Universitat Autònoma de Barcelona Bellaterra, 08193 Barcelona, Spain
| | | | - Jose M Martin-Moreno
- Department of Preventive Medicine and Public Health, University of Valencia, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, Clinic University Hospital, 46010 Valencia, Spain
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Carlberg C, Raczyk M, Zawrotna N. Vitamin D: A master example of nutrigenomics. Redox Biol 2023; 62:102695. [PMID: 37043983 PMCID: PMC10119805 DOI: 10.1016/j.redox.2023.102695] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
Nutrigenomics attempts to characterize and integrate the relation between dietary molecules and gene expression on a genome-wide level. One of the biologically active nutritional compounds is vitamin D3, which activates via its metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) the nuclear receptor VDR (vitamin D receptor). Vitamin D3 can be synthesized endogenously in our skin, but since we spend long times indoors and often live at higher latitudes where for many winter months UV-B radiation is too low, it became a true vitamin. The ligand-inducible transcription factor VDR is expressed in the majority of human tissues and cell types, where it modulates the epigenome at thousands of genomic sites. In a tissue-specific fashion this results in the up- and downregulation of primary vitamin D target genes, some of which are involved in attenuating oxidative stress. Vitamin D affects a wide range of physiological functions including the control of metabolism, bone formation and immunity. In this review, we will discuss how the epigenome- and transcriptome-wide effects of 1,25(OH)2D3 and its receptor VDR serve as a master example in nutrigenomics. In this context, we will outline the basis of a mechanistic understanding for personalized nutrition with vitamin D3.
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18
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Pang M, Chen L, Jiang N, Jiang M, Wang B, Wang L, Jia XY. Serum 25-Hydroxyvitamin D Level Is Negatively Associated with Fatigue in Elderly Maintenance Hemodialysis Patients. Kidney Blood Press Res 2023; 48:231-240. [PMID: 36882038 PMCID: PMC10158086 DOI: 10.1159/000529514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/17/2022] [Indexed: 03/09/2023] Open
Abstract
INTRODUCTION Chronic kidney disease-mineral and bone disorder (CKD-MBD) is frequently observed in maintenance hemodialysis (MHD) patients and is associated with fracture, muscle weakness, malnutrition, etc.; however, relationships of CKD-MBD markers and fatigue are not well established. METHODS This was a cross-sectional study including 244 MHD patients (89 elders) from July to September 2021 in the First Affiliated Hospital of Shandong First Medical University. CKD-MBD markers and other clinical data were collected from medical records. Fatigue in the past week was measured by Standardized Outcomes in Nephrology-Hemodialysis (SONG-HD) fatigue measure; fatigue at the end of hemodialysis was measured by numeric rating scale (NRS). Spearman correlation, linear regression, and robust linear regression were. RESULTS In all MHD patients, lg[25(OH)D] (nmol/L) was negatively correlated with SONG-HD score (β = -1.503, 95% CI: -2.826 to 0.18, p = 0.026) and NRS score (β = -1.532, p = 0.04) in multiple regression models adjusting for sex, age, and all CKD-MBD characters; but no correlations were found on univariate regression or in other multiple regression models. Interaction effects between age ≥65 years and lg(25[OH]D [nmol/L]) in terms of fatigue scores were significant based on multiple linear regressions (SONG-HD score β = -3.613, p for interaction = 0.006; NRS score β = -3.943, p for interaction = 0.008). Compared with non-elderly patients, elderly patients were with higher ACCI scores (7 [6, 8] vs. 4 [3, 5], p < 0.001), higher SONG-HD scores (3 [2, 6] vs. 2 [1, 3], p < 0.001), higher NRS score (4 [2, 7] vs. 3 [1, 5], p < 0.001), lower serum phosphate levels (1.65 [1.29, 2.10] vs. 1.87 [1.55, 2.26] mmol/L, p = 0.002), and lower serum iPTH levels (160.6 [90.46, 306.45] vs. 282.2 [139, 445.7] pg/mL, p < 0.001). There were no differences in serum calcium, alkaline serum, or 25(OH)D levels between the two groups. In elderly patients, lg[25(OH)D] was negatively correlated with SONG-HD score (β = -3.323, p = 0.010) and NRS score (β = -3.521, p = 0.006) on univariate linear regressions. Following adjustment for sex, age, and all CKD-MBD characters, lg[25(OH)D] was negatively correlated with SONG-HD scores (multiple linear regression β = -4.012, p = 0.004; multiple robust regression β = -4.012, p = 0.003) or NRS scores (multiple linear regression β = -4.104, p = 0.002; multiple robust regression β = -4.104, p = 0.001). There were no significant correlations between fatigue scores and other CKD-MBD markers (calcium, phosphate, lgiPTH, alkaline phosphatase) in elderly MHD patients, on either univariate linear regressions or multiple regressions. CONCLUSION Serum 25(OH)D level is negatively associated with fatigue in elderly MHD patients.
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Affiliation(s)
- Menglin Pang
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
| | - Lin Chen
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
| | - Na Jiang
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
| | - Mengmeng Jiang
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
| | - Baofeng Wang
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
| | - Lili Wang
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
| | - Xiao-yan Jia
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Nursing, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Shandong Provincial Institute of Nephrology, Jinan, China
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19
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Alonso N, Zelzer S, Eibinger G, Herrmann M. Vitamin D Metabolites: Analytical Challenges and Clinical Relevance. Calcif Tissue Int 2023; 112:158-177. [PMID: 35238975 PMCID: PMC8892115 DOI: 10.1007/s00223-022-00961-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/16/2022] [Indexed: 01/25/2023]
Abstract
Recent research activities have provided new insights in vitamin D metabolism in various conditions. Furthermore, substantial progress has been made in the analysis of vitamin D metabolites and related biomarkers, such as vitamin D binding protein. Liquid chromatography tandem mass spectrometric (LC-MS/MS) methods are capable of accurately measuring multiple vitamin D metabolites in parallel. Nevertheless, only 25(OH)D and the biologically active form 1,25(OH)2D are routinely measured in clinical practice. While 25(OH)D remains the analyte of choice for the diagnosis of vitamin D deficiency, 1,25(OH)2D is only recommended in a few conditions with a dysregulated D metabolism. 24,25(OH)2D, free and bioavailable 25(OH)D, and the vitamin D metabolite ratio (VMR) have shown promising results, but technical pitfalls in their quantification, limited clinical data and the lack of reference values, impede their use in clinical practice. LC-MS/MS is the preferred method for the measurement of all vitamin D related analytes as it offers high sensitivity and specificity. In particular, 25(OH)D and 24,25(OH)2D can accurately be measured with this technology. When interpreted together, they seem to provide a functional measure of vitamin D metabolism beyond the analysis of 25(OH)D alone. The determination of VDBP, free and bioavailable 25(OH)D is compromised by unresolved analytical issues, lacking reference intervals and insufficient clinical data. Therefore, future research activities should focus on analytical standardization and exploration of their clinical value. This review provides an overview on established and new vitamin D related biomarkers including their pathophysiological role, preanalytical and analytical aspects, expected values, indications and influencing conditions.
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Affiliation(s)
- N Alonso
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - S Zelzer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - G Eibinger
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - M Herrmann
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria.
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20
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Shin U, You H, Lee GY, Son Y, Han SN. The effects of 1,25(OH) 2D 3 treatment on metabolic reprogramming and maturation in bone marrow-derived dendritic cells from control and diabetic mice. J Steroid Biochem Mol Biol 2023; 225:106197. [PMID: 36183994 DOI: 10.1016/j.jsbmb.2022.106197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/17/2022] [Accepted: 09/26/2022] [Indexed: 02/01/2023]
Abstract
Activated dendritic cells (DCs) undergo significant metabolic reprogramming, which is characterized by an increase in aerobic glycolysis and a concurrent progressive loss of oxidative phosphorylation. The modulation of metabolic reprogramming is believed to be closely related to the function of DCs. Vitamin D has been reported to inhibit the maturation of DCs. DC dysfunction has been reported in diabetic patients, and hyperglycemia is associated with impaired glycolytic metabolism in immune cells. Therefore, vitamin D and diabetes may affect intracellular metabolism, thereby regulating the activity of DCs. We investigated the effect of in vitro treatment of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) on metabolic reprogramming and maturation of bone marrow-derived dendritic cells (BMDCs) from diabetic mouse. Six-week-old male C57BLKS/J-m+/m+ mice (CON) and C57BLKS/J-db/db mice (db/db) were fed with a 10% kcal fat diet for seven weeks. BMDCs were generated by culturing bone marrow cells from the mice with rmGM-CSF (20 ng/mL) in the absence or presence of 10 nM 1,25(OH)2D3. The maturation of BMDCs was induced via lipopolysaccharide (LPS, 50 ng/mL) stimulation for 24 h. LPS stimulation induced iNOS protein expression and decreased the mitochondrial respiration, while increased lactate production and the expression of glycolytic pathway-related genes (Glut1 and Pfkfb3) in BMDCs from both CON and db/db groups. In LPS-stimulated mature BMDCs, 1,25(OH)2D3 treatment decreased the expression of surface markers related to immunostimulatory functions (MHC class II, CD80, CD86, and CD40) and production of IL-12p70 in both CON and db/db groups. While the mRNA level of the gene related to glucose uptake (Glut1) was increased in both groups, lactate production was decreased by 1,25(OH)2D3 treatment. mTORC1 activity was suppressed following 1,25(OH)2D3 treatment. Collectively, our findings confirmed that metabolic reprogramming occurred in BMDCs following LPS stimulation. In vitro 1,25(OH)2D3 treatment induced tolerogenic phenotypes by reducing the expression of surface markers, as well as cytokine production. However, no significant difference was observed regarding the effects of 1,25(OH)2D3 treatment on metabolic conversion and maturation of BMDCs between the control and diabetic mice. Additionally, the decreased aerobic glycolysis induced by the 1,25(OH)2D3 treatment appeared to be associated with the diminished maturation of BMDCs, and mTORC1 appears to play a key role in the 1,25(OH)2D3-mediated regulation of glycolysis.
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Affiliation(s)
- Ungue Shin
- Department of Food and Nutrition, Seoul National University, Seoul, the Republic of Korea.
| | - Hyeyoung You
- Department of Food and Nutrition, Seoul National University, Seoul, the Republic of Korea.
| | - Ga Young Lee
- Department of Food and Nutrition, Seoul National University, Seoul, the Republic of Korea.
| | - YeKyoung Son
- Department of Food and Nutrition, Seoul National University, Seoul, the Republic of Korea.
| | - Sung Nim Han
- Department of Food and Nutrition, Seoul National University, Seoul, the Republic of Korea; Research Institute of Human Ecology, Seoul National University, Seoul, the Republic of Korea.
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21
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Barzin M, Ebadinejad A, Vahidi F, Khalaj A, Mahdavi M, Valizadeh M, Hosseinpanah F. The mediating role of bariatric surgery in the metabolic relationship between parathyroid hormone and 25-hydroxyvitamin D. Osteoporos Int 2022; 33:2585-2594. [PMID: 35982319 DOI: 10.1007/s00198-022-06533-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 08/12/2022] [Indexed: 10/15/2022]
Abstract
UNLABELLED Vitamin D metabolism is altered in obese individuals. Our findings indicated that in patients with severe obesity, a relatively low 25(OH)D concentration was required to suppress PTH. The PTH inflection point increased following surgery-induced weight loss, highlighting 25(OH)D different regulation mechanisms in patients with obesity. INTRODUCTION An optimal and sufficient concentration of 25-hydroxyvitamin D (25(OH)D) has been suggested as the level required to maximally suppress intact parathyroid hormone (iPTH). We evaluated the role of surgery-induced weight loss in determining the threshold(s) of 25(OH)D required to suppress iPTH. METHODS This study was conducted in the framework of the Tehran Obesity Treatment Study (TOTS). We prospectively analyzed 687 patients with severe obesity who participated in the TOTS and underwent bariatric surgery from March 2013 to March 2019. The patients were followed for 1 year after surgery. Anthropometric parameters and serum levels of iPTH, 25OHD, phosphorous, and calcium were measured. Nonlinear and piecewise linear regression was used to evaluate the relationship between 25(OH)D and iPTH and to determine the 25(OH)D-suppression point at which iPTH was maximally suppressed. RESULTS Body mass index was 44.6 kg/m2 at the baseline and decreased to 29.7 kg/m2 1 year after surgery (P < 0.05). Before the surgery, iPTH and 25(OH)D showed an exponential relationship; iPTH began to decrease rapidly at 25(OH)D concentration of 12 ng/mL, reaching maximal suppression at 30 ng/mL. However, the relationship between 25(OH)D and iPTH was non-exponential 1 year after surgery. The piecewise linear regression model revealed the 25(OH)D concentration of 21 ng/mL as the inflection point following surgery-induced weight loss. CONCLUSION In patients with severe obesity, PTH was suppressed at a relatively lower concentration of 25(OH)D; this threshold increased following surgery-induced weight loss. These findings suggest a role for bariatric surgery in regulating 25(OH)D metabolism in patients with obesity.
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Affiliation(s)
- Maryam Barzin
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Ebadinejad
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farnaz Vahidi
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Khalaj
- Tehran Obesity Treatment Center, Department of Surgery, Faculty of Medicine, Shahed University, Tehran, Iran
| | - Maryam Mahdavi
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Valizadeh
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farhad Hosseinpanah
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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22
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Martin-Romero A, Perelló-Martínez J, Hidalgo-Santiago JC, Michan-Doña A, Bosco López Sáez J, Gómez-Fernández P. Effect of the administration of different forms of vitamin D on central blood pressure and aortic stiffness, and its implication in the reduction of albuminuria in chronic kidney disease. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ARTERIOSCLEROSIS 2022; 34:311-321. [PMID: 35817704 DOI: 10.1016/j.arteri.2022.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/24/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND OBJECTIVES Vitamin D(vitD) participates in phospho-calcium metabolism and exerts multiple pleiotropic effects. There is tissue 1-α (OH)ase that converts 25-OH cholecalciferol (25 (OH) D) in calcitriol that exerts autocrine and paracrine effects. 25 (OH)D deficiency could limit these tissue effects of vitD. The administration of nutritional vitD and the activator of the vitD receptor, paricalcitol, may promote beneficial effects on vascular and renal function. The objective of this work was to study in subjects with chronic kidney disease (CKD) the effect that the administration of different forms of vitD has on arterial function and albuminuria, and the possible relationship between the modifications of these variables. PATIENTS AND METHODS We studied in 97 patients with CKD stages 3-4 the effect of the administration of cholecalciferol (group 2; n: 35) and paricalcitol (n: 31; group 3) on parameters derived from brachial blood pressure, aortic blood pressure and on aortic stiffness studied using carotid-femoral pulse velocity (Vpc-f), and on albuminuria. A group of patients with stages 3-4 CKD who did not receive vitD therapy served as a control group (n: 31; group 1). All parameters were studied at baseline and after the follow-up period which was 7 ± 2 months. RESULTS In the baseline phase, no differences were observed between the groups in brachial systolic blood pressure (bSBP), central systolic blood pressure (SBP), brachial pulse pressure (bPP), and central pulse pressure (pCP) or in aortic stiffness that was increased in all groups with a baseline Vpc-f value of 10.5 (9.2-12.1) m/sec. The baseline albuminuria value in the grouped patients was 229 (43-876) mg / g (median (interquartile range)), with no differences between the groups. Serum calcium and phosphorus increased significantly in those treated with cholecal-ciferol (native vitD) and paricalcitol (active vitD). Parathormone (PTH) values decreased in those treated with paricalcitol.bPP and cPP decreased in all groups treated with native and active vitD. No significant changes in bPP and cPP were observed in the control group. Vpc-f did not change significantly in any of the groups, although the variation was quantitatively greater in group 3 (11.2±2 vs. 10.7±1.6 (P=.06)). No differences were observed in the changes in Vpc-f between the groups when adjusted to the baseline values of estimated glomerular filtration rate (eGFR), albuminuria, PTH, vitD, brachial and central blood pressure parameters, and their changes with treatment.Those who received treatment with native and active vitD presented a significant decrease in albuminuria of 17% (group 2) and 21% (group 3) compared to a 16% increase in the untreated group (group 1) (P=.01). A decrease in albuminuria ≥30% was observed more frequently in the groups treated with some form of vitD (group 2: 23%; group 3: 45%) than in the control group (13%) (P=.03). The decrease in albuminuria observed in the groups treated with any of the forms of vitD did not vary when the baseline values of the biochemical parameters of phosphorus-calcium metabolism, those of arterial function (PPb, PPc, Vpc-f) or its modifications were introduced as covariates. There was no significant correlation between changes in Vpc-f and albuminuria. In logistic regression, changes in arterial function parameters were also not explanatory for the ≥30% decrease in albuminuria. CONCLUSIONS In patients with CKD stages 3-4, treated with RAS blockers and with residual albuminuria, the administration of or paricalcitol reduces brachial and aortic pulse pressures, and albuminuria. The decrease in albuminuria does not seem to be mediated, at least not decisively, by changes in central hemodynamics or aortic stiffness.
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Affiliation(s)
| | | | | | - Alfredo Michan-Doña
- Unidad de Medicina Interna, Hospital Universitario, Jerez de la Frontera, Cádiz, España
| | | | - Pablo Gómez-Fernández
- Unidad de Factores de Riesgo Vascular, Hospital Universitario, Jerez de la Frontera, Cádiz, España.
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Hasan M, Oster M, Reyer H, Ponsuksili S, Murani E, Wolf P, Fischer DC, Wimmers K. Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs. Metabolites 2022; 12:metabo12080729. [PMID: 36005601 PMCID: PMC9413461 DOI: 10.3390/metabo12080729] [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: 07/15/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/16/2022] Open
Abstract
Calcium (Ca) and phosphorus (P) homeostasis is maintained by several regulators, including vitamin D and fibroblast growth factor 23 (FGF23), and their tissue-specific activation and signaling cascades. In this study, the tissue-wide expression of key genes linked to vitamin D metabolism (CYP2R1, CYP27A1, CYP27B1, CYP24A1, GC, VDR) and FGF23 signaling (FGF23, FGFR1-4, KL) were investigated in pigs fed conventional (trial 1) and divergent P diets (trial 2). The tissue set comprised kidney, liver, bone, lung, aorta, and gastrointestinal tract sections. Expression patterns revealed that non-renal tissues and cells (NRTC) express genes to form active vitamin D [1,25(OH)2D3] according to site-specific requirements. A low P diet resulted in higher serum calcitriol and increased CYP24A1 expression in the small intestine, indicating local suppression of vitamin D signaling. A high P diet prompted increased mRNA abundances of CYP27B1 for local vitamin D synthesis, specifically in bone. For FGF23 signaling, analyses revealed ubiquitous expression of FGFR1-4, whereas KL was expressed in a tissue-specific manner. Dietary P supply did not affect skeletal FGF23; however, FGFR4 and KL showed increased expression in bone at high P supply, suggesting regulation to balance mineralization. Specific NRTC responses influence vitamin D metabolism and P homeostasis, which should be considered for a thrifty but healthy P supply.
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Affiliation(s)
- Maruf Hasan
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Michael Oster
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Henry Reyer
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Siriluck Ponsuksili
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Eduard Murani
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Petra Wolf
- Faculty of Agricultural and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6b, 18059 Rostock, Germany
| | - Dagmar-Christiane Fischer
- Department of Pediatrics, Rostock University Hospital, Ernst-Heydemann-Str. 8, 18057 Rostock, Germany
| | - Klaus Wimmers
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
- Faculty of Agricultural and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6b, 18059 Rostock, Germany
- Correspondence: ; Tel.: +49-38208-68600
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Aggeletopoulou I, Thomopoulos K, Mouzaki A, Triantos C. Vitamin D–VDR Novel Anti-Inflammatory Molecules—New Insights into Their Effects on Liver Diseases. Int J Mol Sci 2022; 23:ijms23158465. [PMID: 35955597 PMCID: PMC9369388 DOI: 10.3390/ijms23158465] [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: 06/15/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/05/2023] Open
Abstract
There is consistent evidence that vitamin D deficiency is strongly associated with liver dysfunction, disease severity, and poor prognosis in patients with liver disease. Vitamin D and its receptor (VDR) contribute to the regulation of innate and adaptive immune responses. The presence of genetic variants of vitamin D- and VDR-associated genes has been associated with liver disease progression. In our recent work, we summarized the progress in understanding the molecular mechanisms involved in vitamin D–VDR signaling and discussed the functional significance of VDR signaling in specific cell populations in liver disease. The current review focuses on the complex interaction between immune and liver cells in the maintenance of liver homeostasis and the development of liver injury, the interplay of vitamin D and VDR in the development and outcome of liver disease, the role of vitamin D- and VDR-associated genetic variants in modulating the occurrence and severity of liver disease, and the therapeutic value of vitamin D supplementation in various liver diseases. The association of the vitamin D–VDR complex with liver dysfunction shows great potential for clinical application and supports its use as a prognostic index and diagnostic tool.
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Affiliation(s)
- Ioanna Aggeletopoulou
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, GR-26504 Patras, Greece; (I.A.); (C.T.)
- Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, GR-26504 Patras, Greece;
| | - Konstantinos Thomopoulos
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, GR-26504 Patras, Greece; (I.A.); (C.T.)
- Correspondence:
| | - Athanasia Mouzaki
- Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, GR-26504 Patras, Greece;
| | - Christos Triantos
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, GR-26504 Patras, Greece; (I.A.); (C.T.)
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LeBoff MS, Chou SH, Ratliff KA, Cook NR, Khurana B, Kim E, Cawthon PM, Bauer DC, Black D, Gallagher JC, Lee IM, Buring JE, Manson JE. Supplemental Vitamin D and Incident Fractures in Midlife and Older Adults. N Engl J Med 2022; 387:299-309. [PMID: 35939577 PMCID: PMC9716639 DOI: 10.1056/nejmoa2202106] [Citation(s) in RCA: 120] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Vitamin D supplements are widely recommended for bone health in the general population, but data on whether they prevent fractures have been inconsistent. METHODS In an ancillary study of the Vitamin D and Omega-3 Trial (VITAL), we tested whether supplemental vitamin D3 would result in a lower risk of fractures than placebo. VITAL was a two-by-two factorial, randomized, controlled trial that investigated whether supplemental vitamin D3 (2000 IU per day), n-3 fatty acids (1 g per day), or both would prevent cancer and cardiovascular disease in men 50 years of age or older and women 55 years of age or older in the United States. Participants were not recruited on the basis of vitamin D deficiency, low bone mass, or osteoporosis. Incident fractures were reported by participants on annual questionnaires and adjudicated by centralized medical-record review. The primary end points were incident total, nonvertebral, and hip fractures. Proportional-hazards models were used to estimate the treatment effect in intention-to-treat analyses. RESULTS Among 25,871 participants (50.6% women [13,085 of 25,871] and 20.2% Black [5106 of 25,304]), we confirmed 1991 incident fractures in 1551 participants over a median follow-up of 5.3 years. Supplemental vitamin D3, as compared with placebo, did not have a significant effect on total fractures (which occurred in 769 of 12,927 participants in the vitamin D group and in 782 of 12,944 participants in the placebo group; hazard ratio, 0.98; 95% confidence interval [CI], 0.89 to 1.08; P = 0.70), nonvertebral fractures (hazard ratio, 0.97; 95% CI, 0.87 to 1.07; P = 0.50), or hip fractures (hazard ratio, 1.01; 95% CI, 0.70 to 1.47; P = 0.96). There was no modification of the treatment effect according to baseline characteristics, including age, sex, race or ethnic group, body-mass index, or serum 25-hydroxyvitamin D levels. There were no substantial between-group differences in adverse events as assessed in the parent trial. CONCLUSIONS Vitamin D3 supplementation did not result in a significantly lower risk of fractures than placebo among generally healthy midlife and older adults who were not selected for vitamin D deficiency, low bone mass, or osteoporosis. (Funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases; VITAL ClinicalTrials.gov number, NCT01704859.).
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Affiliation(s)
- Meryl S LeBoff
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Sharon H Chou
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Kristin A Ratliff
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Nancy R Cook
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Bharti Khurana
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Eunjung Kim
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Peggy M Cawthon
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Douglas C Bauer
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Dennis Black
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - J Chris Gallagher
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - I-Min Lee
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - Julie E Buring
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
| | - JoAnn E Manson
- From the Division of Endocrinology, Diabetes, and Hypertension (M.S.L., S.H.C., K.A.R.), the Division of Preventive Medicine (N.R.C., E.K., I.-M.L., J.E.B., J.E.M.), and the Department of Radiology (B.K.), Brigham and Women's Hospital, Harvard Medical School (M.S.L., S.H.C., N.R.C., B.K., I.-M.L., J.E.B., J.E.M.), and the Department of Epidemiology, Harvard T.H. Chan School of Public Health (N.R.C., I.-M.L., J.E.B., J.E.M.) - all in Boston; California Pacific Medical Center Research Institute (P.M.C.), and the Departments of Epidemiology and Biostatistics (P.M.C., D.C.B., D.B.) and Medicine (D.C.B.), University of California, San Francisco - both in San Francisco; and the Department of Endocrinology, Creighton University School of Medicine, Omaha, NE (J.C.G.)
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Triantos C, Aggeletopoulou I, Mantzaris GJ, Mouzaki Α. Molecular basis of vitamin D action in inflammatory bowel disease. Autoimmun Rev 2022; 21:103136. [DOI: 10.1016/j.autrev.2022.103136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 06/29/2022] [Indexed: 12/15/2022]
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Analysis of Multiple Vitamins Serum Levels and Disease-Related Factors in Children with Acute Leukemia. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:5330563. [PMID: 35463661 PMCID: PMC9033379 DOI: 10.1155/2022/5330563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/22/2022] [Accepted: 03/25/2022] [Indexed: 11/17/2022]
Abstract
Objective To explore the relationship between vitamins levels and disease-related indicators in children with acute leukemia (AL). Methods A total of 107 hospitalized children with AL were enrolled in this study and assigned to one group in each of the following categories: infected group (n = 52) and noninfected group (n = 55); treatment remission group (n = 56) and nonremission group (n = 51); high-risk (HR) group (n = 44), intermediate risk (IR) group (n = 53), and slight risk (SR) group (n = 8); cyclophosphamide + cytosine arabinoside+6-mercaptopurine + pegaspargase group (CAML, n = 15); methotrexate group (MTX, n = 9); and vindesine + daunomycin + L-asparaginasum + prednisone (VALP, n = 38). Hematological and serological parameters, hepatic and renal function, and changes in vitamins A, B1, B2, B6, B9, B12, C, D, and E serum content in children with AL were analyzed to investigate their relationship with AL disease-related factors. Results The vitamin D level was significantly higher in the noninfected group than in the infected group (P < 0.05). Compared with the nonremission group, the level of vitamin B1 in the treatment remission group was significantly higher, while the levels of vitamin B6 and B12 were notably lower (P < 0.05). The levels of vitamins B6 and B12 were notably different among the treatment groups. Multivariate analysis showed that hemoglobin (Hb) and C-reactive protein (CRP) were predisposing factors of AL in children. The disease type (acute lymphoblastic leukemia/acute myelogenous leukemia) was the factor affecting remission in AL children. Abnormal kidney function and the occurrence of icterus were the influencing factors for the risk degree in AL children. Platelet (PLT) count, activated partial thromboplastin time (APTT), neutrophils (N), and immunophenotype were shown to affect the choice of therapeutic regimens. Conclusion There are notable vitamins imbalances in children with AL. The imbalances influence disease-related factors and therefore provide some references for the prognosis and treatment of AL.
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Abstract
Vitamin D, best known for its role in skeletal health, has emerged as a key regulator of innate immune responses to microbial threat. In immune cells such as macrophages, expression of CYP27B1, the 25-hydroxyvitamin D 1α-hydroxylase, is induced by immune-specific inputs, leading to local production of hormonal 1,25-dihydroxyvitamin D (1,25D) at sites of infection, which in turn directly induces the expression of genes encoding antimicrobial peptides. Vitamin D signaling is active upstream and downstream of pattern recognition receptors, which promote front-line innate immune responses. Moreover, 1,25D stimulates autophagy, which has emerged as a mechanism critical for control of intracellular pathogens such as M. tuberculosis. Strong laboratory and epidemiological evidence links vitamin D deficiency to increased rates of conditions such as dental caries, as well as inflammatory bowel diseases arising from dysregulation of innate immune handling intestinal flora. 1,25D is also active in signaling cascades that promote antiviral innate immunity; 1,25D-induced expression of the antimicrobial peptide CAMP/LL37, originally characterized for its antibacterial properties, is a key component of antiviral responses. Poor vitamin D status is associated with greater susceptibility to viral infections, including those of the respiratory tract. Although the severity of the COVID-19 pandemic has been alleviated in some areas by the arrival of vaccines, it remains important to identify therapeutic interventions that reduce disease severity and mortality, and accelerate recovery. This review outlines of our current knowledge of the mechanisms of action of vitamin D signaling in the innate immune system. It also provides an assessment of the therapeutic potential of vitamin D supplementation in infectious diseases, including an up-to-date analysis of the putative benefits of vitamin D supplementation in the ongoing COVID-19 crisis.
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Affiliation(s)
- Aiten Ismailova
- Departments of Physiology, McGill University, Montreal, Qc, Canada
| | - John H White
- Departments of Physiology, McGill University, Montreal, Qc, Canada.
- Departments of Medicine, McGill University, Montreal, Qc, Canada.
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29
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Pavek P, Dusek J, Smutny T, Lochman L, Kucera R, Skoda J, Smutna L, Kamaraj R, Soucek P, Vrzal R, Dvorak Z. Gene expression profiling of 1α,25(OH)
2
D
3
treatment in 2D/3D human hepatocyte models reveals CYP3A4 induction but minor changes in other xenobiotic‐metabolizing genes. Mol Nutr Food Res 2022; 66:e2200070. [DOI: 10.1002/mnfr.202200070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Petr Pavek
- Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Jan Dusek
- Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Tomas Smutny
- Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Lukas Lochman
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Radim Kucera
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Josef Skoda
- Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Lucie Smutna
- Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Rajamanikkam Kamaraj
- Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec Kralove Charles University Hradec Kralove Czech Republic
| | - Pavel Soucek
- Toxicogenomics Unit National Institute of Public Health Prague Czech Republic
- Laboratory of Pharmacogenomics Biomedical Center Faculty of Medicine in Pilsen Charles University Pilsen Czech Republic
| | - Radim Vrzal
- Department of Cell Biology and Genetics Faculty of Science Palacky University Olomouc Czech Republic
| | - Zdenek Dvorak
- Department of Cell Biology and Genetics Faculty of Science Palacky University Olomouc Czech Republic
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Zorzella-Pezavento SFG, Mimura LAN, Denadai MB, de Souza WDF, Fraga-Silva TFDC, Sartori A. Is there a window of opportunity for the therapeutic use of vitamin D in multiple sclerosis? Neural Regen Res 2022; 17:1945-1954. [PMID: 35142671 PMCID: PMC8848597 DOI: 10.4103/1673-5374.335139] [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] [Indexed: 11/21/2022] Open
Abstract
Multiple sclerosis is an autoimmune treatable but not curable disease. There are a multiplicity of medications for multiple sclerosis therapy, including a class entitled disease-modifying drugs that are mainly indicated to reduce the number and severity of disease relapses. Not all patients respond well to these therapies, and minor to severe adverse effects have been reported. Vitamin D, called sunshine vitamin, is being studied as a possible light at the end of the tunnel. In this review, we recapitulated the similar immunopathogenesis of multiple sclerosis and experimental autoimmune encephalomyelitis, the immunomodulatory and neuroprotective potential of vitamin D and the state-of-art concerning its supplementation to multiple sclerosis patients. Finally, based on our and other groups’ experimental findings, we analyzed the need to consider the relevance of the route and the different time-point administration aspects for a more rational indication of this vitamin to multiple sclerosis patients.
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Affiliation(s)
| | - Luiza Ayumi Nishiyama Mimura
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Marina Bonifácio Denadai
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - William Danilo Fernandes de Souza
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | | | - Alexandrina Sartori
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
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Vernia F, Valvano M, Longo S, Cesaro N, Viscido A, Latella G. Vitamin D in Inflammatory Bowel Diseases. Mechanisms of Action and Therapeutic Implications. Nutrients 2022; 14:269. [PMID: 35057450 PMCID: PMC8779654 DOI: 10.3390/nu14020269] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/04/2022] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
(1) Background: Vitamin D is an immunoregulatory factor influencing intestinal homeostasis. Recent evidence supports a central role of this micronutrient in the course of Inflammatory Bowel Diseases (IBD). This narrative review aims to provide a general overview of the possible biological mechanisms of action of vitamin D and its therapeutic implications in IBD. (2) Methods: A systematic electronic search of the English literature up to October 2021 was performed using Medline and the Cochrane Library. Only papers written in English that analyzed the role of vitamin D in IBD were included. (3) Results: In vitro and animal studies reported that vitamin D signaling improves epithelial barrier integrity regulating the expression of several junctional proteins, defensins, and mucins, modulates the inflammatory response, and affects gut microbiome composition. Recent studies also suggest that vitamin D deficiency is highly prevalent among IBD patients and that low serum levels correlate with disease activity and, less clearly, with disease course. (4) Conclusions: An increasing body of evidence suggests some role of vitamin D in the pathophysiology of IBD, nonetheless the underlying mechanisms have been so far only partially elucidated. A strong correlation with disease activity has been reported but its implication in the treatment is still undefined. Thus, studies focused on this issue, the definition of vitamin D levels responsible for clinical effects, and the potential role of vitamin D as a therapeutic agent are strongly encouraged.
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Affiliation(s)
| | | | | | | | | | - Giovanni Latella
- Gastroenterology Unit, Department of Life, Health and Environmental Sciences, University of L’Aquila, Piazza S. Tommasi, Coppito, 67100 L’Aquila, Italy; (F.V.); (M.V.); (S.L.); (N.C.); (A.V.)
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Mazess RB, Bischoff‐Ferrari HA, Dawson‐Hughes B. Vitamin D: Bolus Is Bogus-A Narrative Review. JBMR Plus 2021; 5:e10567. [PMID: 34950828 PMCID: PMC8674779 DOI: 10.1002/jbm4.10567] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/27/2021] [Indexed: 12/13/2022] Open
Abstract
In this review we summarize the impact of bolus versus daily dosing of vitamin D on 25(OH)D and 1,25(OH)2D levels, as well as on key countervailing factors that block vitamin D functions at the cellular level. Further, we discuss the role of bolus versus daily dosing of vitamin D for several health outcomes, including respiratory infections and coronavirus disease 2019 (COVID-19), rickets, falls and fractures, any cancer, and cancer-related mortality. This discussion appears timely because bolus doses continue to be tested for various disease outcomes despite a growing amount of evidence suggesting lack of efficacy or even detrimental effects of bolus dosing of vitamin D for outcomes where daily dosing at modest levels was effective in the vitamin D deficient. As a result, these discordant results may bias health recommendations for vitamin D if the recommendations are based on meta-analyses combining both daily and bolus dosing trials. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
| | - Heike A. Bischoff‐Ferrari
- Department of Aging Medicine and Aging ResearchUniversity of ZurichZurichSwitzerland
- City Hospital ZurichUniversity Clinic for Aging MedicineZurichSwitzerland
| | - Bess Dawson‐Hughes
- Jean Mayer US Department of Agriculture (USDA) Human Nutrition Research Center on AgingTufts UniversityBostonMAUSA
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Shieh A, Lee SM, Lagishetty V, Gottleib C, Jacobs JP, Adams JS. Pilot Trial of Vitamin D3 and Calcifediol in Healthy Vitamin D Deficient Adults: Does It Change the Fecal Microbiome? J Clin Endocrinol Metab 2021; 106:3464-3476. [PMID: 34343292 PMCID: PMC8864755 DOI: 10.1210/clinem/dgab573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Experimental studies suggest that vitamin D receptor signaling may benefit the gut microbiome. In humans, whether vitamin D supplementation directly alters the gut microbiome is not well studied. OBJECTIVE To determine whether correcting vitamin D deficiency with cholecalciferol (vitamin D3, D3) or calcifediol (25-hydroxyvitamin D3, 25(OH)D3) changes gut microbiome composition. METHODS 18 adults with vitamin D deficiency (25-hydroxyvitamin D [25(OH)D] <20 ng/mL) received 60 µg/day of D3 or 20 µg/day of 25(OH)D3 for 8 weeks. Changes in serum 25(OH)D, 1,25-diydroxyvitamin D (1,25(OH)2D), and 24,25-dihydroxyvitamin D (24,25(OH)2D) were assessed. We characterized composition of the fecal microbiota using 16S rRNA gene sequencing, and examined changes in α-diversity (Chao 1, Faith's Phylogenetic Diversity, Shannon Index), β-diversity (DEICODE), and genus-level abundances (DESeq2). RESULTS Vitamin D3 and 25(OH)D3 groups were similar. After 8 weeks of vitamin D3, mean 25(OH)D and 24,25(OH)2D increased significantly, but 1,25(OH)2D did not (25(OH)D: 17.8-30.1 ng/mL, P = .002; 24,25(OH)2D: 1.1 to 2.7 ng/mL, P =0.003; 1,25(OH)2D: 49.5-53.0 pg/mL, P = .9). After 8 weeks of 25(OH)D3, mean 25(OH)D, 24,25(OH)2D, and 1,25(OH)2D increased significantly (25(OH)D: 16.7-50.6 ng/mL, P < .0001; 24,25(OH)2D: 1.3-6.2 ng/mL, P = .0001; 1,25(OH)2D: 56.5-74.2 pg/mL, P = .05). Fecal microbial α-diversity and β-diversity did not change with D3 or 25D3 supplementation. Mean relative abundance of Firmicutes increased and mean relative abundance of Bacterioidetes decreased from baseline to 4 weeks, but returned to baseline by study completion. DESeq2 analysis did not confirm any statistically significant taxonomic changes. CONCLUSION In a small sample of healthy adults with vitamin D deficiency, restoration of vitamin D sufficiency with vitamin D3 or 25(OH)D3 did not lead to lasting changes in the fecal microbiota.
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Affiliation(s)
- Albert Shieh
- Department of Medicine, David Geffen School of Medicine University of California, Los Angeles, CA, USA
| | - S Melanie Lee
- Department of Psychiatry, David Geffen School of Medicine University of California, Los Angeles, CA, USA
| | - Venu Lagishetty
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Carter Gottleib
- Departments of Orthopaedic Surgery and Medicine, David Geffen School of Medicine and Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA, USA
| | - Jonathan P Jacobs
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - John S Adams
- Departments of Orthopaedic Surgery and Medicine, David Geffen School of Medicine and Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA, USA
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Pike JW, Meyer MB. New Approaches to Assess Mechanisms of Action of Selective Vitamin D Analogues. Int J Mol Sci 2021; 22:ijms222212352. [PMID: 34830234 PMCID: PMC8619157 DOI: 10.3390/ijms222212352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/05/2021] [Accepted: 11/11/2021] [Indexed: 12/28/2022] Open
Abstract
Recent studies of transcription have revealed an advanced set of overarching principles that govern vitamin D action on a genome-wide scale. These tenets of vitamin D transcription have emerged as a result of the application of now well-established techniques of chromatin immunoprecipitation coupled to next-generation DNA sequencing that have now been linked directly to CRISPR-Cas9 genomic editing in culture cells and in mouse tissues in vivo. Accordingly, these techniques have established that the vitamin D hormone modulates sets of cell-type specific genes via an initial action that involves rapid binding of the VDR-ligand complex to multiple enhancer elements at open chromatin sites that drive the expression of individual genes. Importantly, a sequential set of downstream events follows this initial binding that results in rapid histone acetylation at these sites, the recruitment of additional histone modifiers across the gene locus, and in many cases, the appearance of H3K36me3 and RNA polymerase II across gene bodies. The measured recruitment of these factors and/or activities and their presence at specific regions in the gene locus correlate with the emerging presence of cognate transcripts, thereby highlighting sequential molecular events that occur during activation of most genes both in vitro and in vivo. These features provide a novel approach to the study of vitamin D analogs and their actions in vivo and suggest that they can be used for synthetic compound evaluation and to select for novel tissue- and gene-specific features. This may be particularly useful for ligand activation of nuclear receptors given the targeting of these factors directly to genetic sites in the nucleus.
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Affiliation(s)
- John Wesley Pike
- Correspondence: ; Tel.: +1-(608)-262-8229; Fax: +1-(608)-263-7609
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Alakaş Y, Celiloğlu C, Tolunay O, Matyar S. The Relationship between Bronchiolitis Severity and Vitamin D Status. J Trop Pediatr 2021; 67:6377121. [PMID: 34580716 DOI: 10.1093/tropej/fmab081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND/AIM Acute bronchiolitis is mostly caused by viral agents in children under 2 years of age. The disease mostly has a mild clinical course however severe cases are not uncommon. Vitamin D is known to exert immune-regulatory functions. We aimed to examine the association between the clinical severity of acute bronchiolitis and serum vitamin D levels in infants. MATERIALS AND METHODS A total of 182 children with acute bronchiolitis were prospectively enrolled. The disease severity was assessed using the Modified Tal Scoring System and their vitamin D levels were evaluated. RESULTS Vitamin D deficiency or insufficiency was as high as 47.8% in infants with bronchiolitis. Infants with low vitamin D levels comprised a significantly larger proportion of patients with severe bronchiolitis (p = 0.002). Infants admitted to intensive care unit had significantly higher degrees of vitamin D deficiency or insufficiency (p < 0.001). CONCLUSION Vitamin D deficiency is closely linked with severe bronchiolitis and the need for intensive care unit admission in infants. We believe that assessment of vitamin D levels in infants prior to bronchiolitis season and appropriate supplementation may have a protective effect against severe bronchiolitis.
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Affiliation(s)
- Yusuf Alakaş
- Department of Pediatrics, University of Medical Sciences, Adana City Training and Research Hospital, Adana 01230, Turkey
| | - Can Celiloğlu
- Faculty of Medicine, Department of Pediatrics, Pediatric Endocrinology Department, Çukurova University, Adana 01250, Turkey
| | - Orkun Tolunay
- Department of Pediatrics, University of Medical Sciences, Adana City Training and Research Hospital, Adana 01230, Turkey
| | - Selçuk Matyar
- Department of Biochemistry, University of Medical Sciences, Adana City Training and Research Hospital, Adana 01230, Turkey
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Clarke KE, Hurst EA, Mellanby RJ. Vitamin D metabolism and disorders in dogs and cats. J Small Anim Pract 2021; 62:935-947. [PMID: 34323302 DOI: 10.1111/jsap.13401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 06/05/2021] [Accepted: 06/19/2021] [Indexed: 12/20/2022]
Abstract
Vitamin D plays an important role in regulating calcium metabolism and in the development and maintenance of skeletal health of companion animals. There is also a growing interest in understanding the role vitamin D plays in non-skeletal health in both human and veterinary patients. This review provides an update of our current understanding of vitamin D biology in dogs and cats and gives an overview of how vitamin D metabolism can be assessed in companion animals. Congenital and acquired vitamin D disorders are then summarised before the review concludes with a summary of recent studies which have explored the role of vitamin D in the development and outcomes of non-skeletal diseases of dogs and cats.
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Affiliation(s)
- K E Clarke
- Davies Veterinary Specialists, Manor Farm Business Park, Higham Gobion, Hertfordshire, UK
| | - E A Hurst
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, The University of Edinburgh, Easter Bush Campus, Roslin, Midlothian, UK
| | - R J Mellanby
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, The University of Edinburgh, Easter Bush Campus, Roslin, Midlothian, UK
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Subber Z, Al-Shamma G, Hashim H. total and free vitamin D in type 2 diabetes mellitus patients in Baghdad city. BAGHDAD JOURNAL OF BIOCHEMISTRY AND APPLIED BIOLOGICAL SCIENCES 2021. [DOI: 10.47419/bjbabs.v2i02.41] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background: The free-form of vitamin D has been used by many researchers as an index of vitamin D status in health and disease. Several methods are there to estimate free, total, and even bioavailable vitamin D.
Objective: The present work was carried out to measure free vitamin D using a special formula suggested by Bikle and Schwartz in 2019, which includes the vitamin D binding protein (VDBP). The results will be used to evaluate the vitamin D status in patients with type 2 diabetes mellitus (T2DM), and its relation to the disease progression.
Methods: Sixty-four patients with T2DM and 73 healthy subjects, all from Baghdad city, were enrolled in the current study from March to October 2020. For each participant, fasting blood glucose, hemoglobin (HbA1c), insulin resistance HOMA-IR, and body mass index (BMI) were measured in addition to the total vitamin D and VDBP. Moreover, free vitamin D was calculated by the formula of Bikle & Schwartz.
Results: There were highly significant correlations between total vitamin D and absolute values of free vitamin D or its percentage. The difference in total vitamin D was significant between patients and healthy controls with no significant change in VDBP, free and bio-available vitamin D, while free vitamin D% was higher in the patient’s group. Correlations between vitamin D and each of BMI, fasting glucose, HbA1c, and HOMA-IR were not significant; however, there was a negative correlation with BMI and fasting glucose in the healthy control subjects only. The Receiver Operating Characteristic (ROC) curve analysis of vitamin D in the diagnosis of diabetes mellitus was poor.
Conclusion: Total vitamin D can represent vitamin D status, but it cannot be used as a factor for diagnosing T2DM. However, it could be of importance to change the glycemic status.
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Gouni-Berthold I, Berthold HK. Vitamin D and Vascular Disease. Curr Vasc Pharmacol 2021; 19:250-268. [PMID: 32183681 DOI: 10.2174/1570161118666200317151955] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 12/20/2022]
Abstract
Cardiovascular disease (CVD) is a major cause of morbidity and mortality worldwide. Vitamin D deficiency has been identified as a potential risk factor for a number of diseases unrelated to the classical skeletal pathophysiology, such as cancer and CVD, but the effects of vitamin D supplementation are less clear. Purpose of this narrative review is to discuss the evidence suggesting an association between vitamin D status and CVD as well as the results of supplementation studies. Vitamin D deficiency has been associated with CVD risk factors such as hypertension, dyslipidemia and diabetes mellitus as well as with cardiovascular events such as myocardial infarction, stroke and heart failure. While vitamin D deficiency might contribute to the development of CVD through its association with risk factors, direct effects of vitamin D on the cardiovascular system may also be involved. Vitamin D receptors are expressed in a variety of tissues, including cardiomyocytes, vascular smooth muscle cells and endothelial cells. Moreover, vitamin D has been shown to affect inflammation, cell proliferation and differentiation. While observational studies support an association between low plasma vitamin D levels and increased risk of CVD, Mendelian randomization studies do not support a causal association between the two. At present, high quality randomized trials do not find evidence of significant effects on CVD endpoints and do not support supplementation of vitamin D to decrease CVD events.
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Affiliation(s)
- Ioanna Gouni-Berthold
- Polyclinic for Endocrinology, Diabetes and Preventive Medicine, University of Cologne, Cologne, Germany
| | - Heiner K Berthold
- Department of Internal Medicine and Geriatrics, Bethel Clinic (EvKB), Bielefeld, Germany
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Máčová L, Bičíková M. Vitamin D: Current Challenges between the Laboratory and Clinical Practice. Nutrients 2021; 13:1758. [PMID: 34064098 PMCID: PMC8224373 DOI: 10.3390/nu13061758] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 12/21/2022] Open
Abstract
Vitamin D is a micronutrient with pleiotropic effects in humans. Due to sedentary lifestyles and increasing time spent indoors, a growing body of research is revealing that vitamin D deficiency is a global problem. Despite the routine measurement of vitamin D in clinical laboratories and many years of efforts, methods of vitamin D analysis have yet to be standardized and are burdened with significant difficulties. This review summarizes several key analytical and clinical challenges that accompany the current methods for measuring vitamin D. According to an external quality assessment, methods and laboratories still produce a high degree of variability. Structurally similar metabolites are a source of significant interference. Furthermore, there is still no consensus on the normal values of vitamin D in a healthy population. These and other problems discussed herein can be a source of inconsistency in the results of research studies.
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Affiliation(s)
- Ludmila Máčová
- Institute of Endocrinology, Národni 8, 11694 Prague, Czech Republic;
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Dominguez LJ, Farruggia M, Veronese N, Barbagallo M. Vitamin D Sources, Metabolism, and Deficiency: Available Compounds and Guidelines for Its Treatment. Metabolites 2021; 11:metabo11040255. [PMID: 33924215 PMCID: PMC8074587 DOI: 10.3390/metabo11040255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 02/06/2023] Open
Abstract
Studies on vitamin/hormone D deficiency have received a vast amount of attention in recent years, particularly concerning recommendations, guidelines, and treatments. Moreover, vitamin D’s role as a hormone has been confirmed in various enzymatic, metabolic, physiological, and pathophysiological processes related to many organs and systems in the human body. This growing interest is mostly due to the evidence that modest-to-severe vitamin D deficiency is widely prevalent around the world. There is broad agreement that optimal vitamin D status is necessary for bones, muscles, and one’s general health, as well as for the efficacy of antiresorptive and anabolic bone-forming treatments. Food supplementation with vitamin D, or the use of vitamin D supplements, are current strategies to improve vitamin D levels and treat deficiency. This article reviews consolidated and emerging concepts about vitamin D/hormone D metabolism, food sources, deficiency, as well as the different vitamin D supplements available, and current recommendations on the proper use of these compounds.
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Lu X, Chen Z, Watsky MA. Effects of 1,25 and 24,25 Vitamin D on Corneal Fibroblast VDR and Vitamin D Metabolizing and Catabolizing Enzymes. Curr Eye Res 2021; 46:1271-1282. [PMID: 33535006 DOI: 10.1080/02713683.2021.1884726] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Purpose: To investigate the effects of 1,25-Vit D3 and 24,25-Vit D3 on corneal fibroblast expression of the vitamin D-associated enzymes CYP27B1 and CYP24A1 and the roles of the vitamin D receptor (VDR) and protein disulfide isomerase, family A, member 3 (Pdia3) in these cells.Methods: CYP24A1, CYP27B1, VDR, and Pdia3 expression in corneas was detected using immunohistochemistry. Western blotting was used to measure protein expression in human and mouse fibroblasts, including VDR KO mouse cells, treated with 1,25-Vit D3 (20 nM) and 24,25-Vit D3 (100 nM). The Pdia3 inhibitor LOC14 was used to explore the role of Pdia3 as a Vit D3 receptor in these cells.Results: CYP24A1, CYP27B1, VDR, and Pdia3 were all expressed in mouse and human corneal fibroblasts. 1,25-Vit D3 significantly increased VDR expression in human and mouse fibroblasts. 1,25-Vit D3 and 24,25-VitD3 significantly increased CYP24A1 and CYP27B1 expression level in human, VDR WT mouse, and VDR KO mouse corneal fibroblasts. CYP24A1 and CYP27B1 expression was unchanged in VDR KO mouse fibroblasts treated with 1,25-Vit D3 or 24,25-Vit D3 plus LOC14. Human fibroblast VDR, CYP24A1, and CYP27B1 expression were unaffected by LOC14.Conclusions: Vitamin D metabolic enzymes, VDR, and Pdia3 are all expressed in mouse and human corneal fibroblasts. 1,25-Vit D3 modulates fibroblast vitamin D enzymes through both the VDR and Pdia3 pathways in a species-dependent manner. 24,25-Vit D3 can increase expression of fibroblast CYP24A1 and CYP27B1 in the absence of VDR and is likely involved in fibroblast regulation independent of 1,25-Vit D3 or VDR.
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Affiliation(s)
- Xiaowen Lu
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Zhong Chen
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Mitchell A Watsky
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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Pike JW, Lee SM, Benkusky NA, Meyer MB. Genomic Mechanisms Governing Mineral Homeostasis and the Regulation and Maintenance of Vitamin D Metabolism. JBMR Plus 2021; 5:e10433. [PMID: 33553989 PMCID: PMC7839818 DOI: 10.1002/jbm4.10433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/30/2020] [Accepted: 11/08/2020] [Indexed: 01/08/2023] Open
Abstract
Our recent genomic studies identified a complex kidney‐specific enhancer module located within the introns of adjacent Mettl1 (M1) and Mettl21b (M21) genes that mediate basal and PTH induction of Cyp27b1, as well as suppression by FGF23 and 1,25‐dihydroxyvitamin D3 [1,25(OH)2D3]. The tissue specificity for this regulatory module appears to be localized exclusively to renal proximal tubules. Gross deletion of these segments in mice has severe consequences on skeletal health, and directly affects Cyp27b1 expression in the kidney. Deletion of both the M1 and M21 submodules together almost completely eliminates basal Cyp27b1 expression in the kidney, creating a renal specific pseudo‐null mouse, resulting in a systemic and skeletal phenotype similar to that of the Cyp27b1‐KO mouse caused by high levels of both 25‐hydroxyvitamin D3 [25(OH)D3] and PTH and depletion of 1,25(OH)2D3. Cyp24a1 levels in the double KO mouse also decrease because of compensatory downregulation of the gene by elevated PTH and reduced FGF23 that is mediated by an intergenic module located downstream of the Cyp24a1 gene. Outside of the kidney in nonrenal target cells (NRTCs), expression of Cyp27b1 in these mutant mice was unaffected. Dietary normalization of calcium, phosphate, PTH, and FGF23 rescues the aberrant phenotype of this mouse and normalizes the skeleton. In addition, both the high levels of 25(OH)D3 were reduced and the low levels of 1,25(OH)2D3 were fully eliminated in these mutant mice as a result of the rescue‐induced normalization of renal Cyp24a1. Thus, these hormone‐regulated enhancers for both Cyp27b1 and Cyp24a1 in the kidney are responsible for the circulating levels of 1,25(OH)2D3 in the blood. The retention of Cyp27b1 and Cyp24a1 expression in NRTCs of these endocrine 1,25(OH)2D3‐deficient mice suggests that this Cyp27b1 pseudo‐null mouse will provide a model for the future exploration of the role of NRTC‐produced 1,25(OH)2D3 in the hormone's diverse noncalcemic actions in both health and disease. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- J Wesley Pike
- Department of Biochemistry University of Wisconsin-Madison Madison WI USA
| | - Seong Min Lee
- Department of Biochemistry University of Wisconsin-Madison Madison WI USA
| | - Nancy A Benkusky
- Department of Biochemistry University of Wisconsin-Madison Madison WI USA
| | - Mark B Meyer
- Department of Biochemistry University of Wisconsin-Madison Madison WI USA
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Dimitrov V, Barbier C, Ismailova A, Wang Y, Dmowski K, Salehi-Tabar R, Memari B, Groulx-Boivin E, White JH. Vitamin D-regulated Gene Expression Profiles: Species-specificity and Cell-specific Effects on Metabolism and Immunity. Endocrinology 2021; 162:bqaa218. [PMID: 33249469 PMCID: PMC7751191 DOI: 10.1210/endocr/bqaa218] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Indexed: 12/19/2022]
Abstract
Vitamin D has pleiotropic physiological actions including immune system regulation, in addition to its classical role in calcium homeostasis. Hormonal 1,25-dihydroxyvitamin D (1,25D) signals through the nuclear vitamin D receptor, and large-scale expression profiling has provided numerous insights into its diverse physiological roles. To obtain a comprehensive picture of vitamin D signaling, we analyzed raw data from 94 (80 human, 14 mouse) expression profiles of genes regulated by 1,25D or its analogs. This identified several thousand distinct genes directly or indirectly up- or downregulated in a highly cell-specific manner in human cells using a 1.5-fold cut-off. There was significant overlap of biological processes regulated in human and mouse but minimal intersection between genes regulated in each species. Disease ontology clustering confirmed roles for 1,25D in immune homeostasis in several human cell types, and analysis of canonical pathways revealed novel and cell-specific roles of vitamin D in innate immunity. This included cell-specific regulation of several components of Nucleotide-binding Oligomerization Domain-like (NOD-like) pattern recognition receptor signaling, and metabolic events controlling innate immune responses. Notably, 1,25D selectively enhanced catabolism of branched-chain amino acids (BCAAs) in monocytic cells. BCAA levels regulate the major metabolic kinase mammalian Target of Rapamycin (mTOR), and pretreatment with 1,25D suppressed BCAA-dependent activation of mTOR signaling. Furthermore, ablation of BCAT1 expression in monocytic cells blocked 1,25D-induced increases in autophagy marker LAMP1. In conclusion, the data generated represents a powerful tool to further understand the diverse physiological roles of vitamin D signaling and provides multiple insights into mechanisms of innate immune regulation by 1,25D.
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Affiliation(s)
- Vassil Dimitrov
- Department of Physiology, McGill University, Montreal QC, Canada
| | - Camille Barbier
- Department of Physiology, McGill University, Montreal QC, Canada
| | - Aiten Ismailova
- Department of Physiology, McGill University, Montreal QC, Canada
| | - Yifei Wang
- Department of Physiology, McGill University, Montreal QC, Canada
| | - Katy Dmowski
- Department of Physiology, McGill University, Montreal QC, Canada
| | | | - Babak Memari
- Department of Physiology, McGill University, Montreal QC, Canada
| | | | - John H White
- Department of Physiology, McGill University, Montreal QC, Canada
- Department of Medicine, McGill University, Montreal QC, Canada
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Wu J, Shao B, Xin X, Luo W, Mo M, Jiang W, Si S, Wang S, Shen Y, Yu Y. Association of vitamin D pathway gene polymorphisms with vitamin D level during pregnancy was modified by season and vitamin D supplement. Clin Nutr 2021; 40:3650-3660. [PMID: 33423808 DOI: 10.1016/j.clnu.2020.12.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/05/2020] [Accepted: 12/21/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND & AIMS This study aims to explore the associations of vitamin D (VD) metabolic pathway gene with 25(OH)D level in pregnant women and the interactions of SNP with season and VD supplement. METHODS A total of 2658 pregnant women were selected from Zhoushan Pregnant Women Cohort study. Gestational 25(OH)D level and single nucleotide polymorphism (SNP) of VD metabolic pathway gene were detected. Multilinear regression models were used to estimate associations of SNPs with gestational 25(OH)D levels. Stratified analyses were performed to test the interactions of SNP with season and VD supplements. RESULTS The mutations of rs2298849 and rs7041 on the GC gene were respectively associated with higher 25(OH)D in the first and third trimester; the mutations of seven SNPs (rs1155563, rs16846876, rs17467825, rs2282679, rs2298850, rs3755967, and rs4588) on the GC gene were respectively associated with lower 25(OH)D both in the first and third trimester, and lower changes in 25(OH)D during late pregnancy. The mutations of above seven SNPs, except for rs1155563, were also respectively associated with lower 25(OH)D in the second trimester, but to a lesser extent; Besides, pregnant women with mutation on CYP24A1-rs2209314 had a higher increment in 25(OH)D than their counterparts in the second trimester. The increasing dose effect of Gc isoform on 25(OH)D was observed. The associations of GC and LRP2 genes with 25(OH)D modified by season and VD supplements. CONCLUSIONS The polymorphisms of VD metabolic pathway gene were associated with gestational 25(OH)D, and the associations differ by seasons and VD supplements. Gc isoform exerted a profound influence on gestational 25(OH)D.
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Affiliation(s)
- Jinhua Wu
- Zhoushan Maternal and Child Care Hospital, Zhoushan, China
| | - Bule Shao
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China; Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xing Xin
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wenliang Luo
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Minjia Mo
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wen Jiang
- Zhoushan Maternal and Child Care Hospital, Zhoushan, China
| | - Shuting Si
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuojia Wang
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yu Shen
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yunxian Yu
- Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China.
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L Bishop E, Ismailova A, Dimeloe S, Hewison M, White JH. Vitamin D and Immune Regulation: Antibacterial, Antiviral, Anti-Inflammatory. JBMR Plus 2021; 5:e10405. [PMID: 32904944 PMCID: PMC7461279 DOI: 10.1002/jbm4.10405] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023] Open
Abstract
Regulation of immune function continues to be one of the most well-recognized extraskeletal actions of vitamin D. This stemmed initially from the discovery that antigen presenting cells such as macrophages could actively metabolize precursor 25-hydroxyvitamin D (25D) to active 1,25-dihydroxyvitamin D (1,25D). Parallel observation that activated cells from the immune system expressed the intracellular vitamin D receptor (VDR) for 1,25D suggested a potential role for vitamin D as a localized endogenous modulator of immune function. Subsequent studies have expanded our understanding of how vitamin D exerts effects on both the innate and adaptive arms of the immune system. At an innate level, intracrine synthesis of 1,25D by macrophages and dendritic cells stimulates expression of antimicrobial proteins such as cathelicidin, as well as lowering intracellular iron concentrations via suppression of hepcidin. By potently enhancing autophagy, 1,25D may also play an important role in combatting intracellular pathogens such as M. tuberculosis and viral infections. Local synthesis of 1,25D by macrophages and dendritic cells also appears to play a pivotal role in mediating T-cell responses to vitamin D, leading to suppression of inflammatory T helper (Th)1 and Th17 cells, and concomitant induction of immunotolerogenic T-regulatory responses. The aim of this review is to provide an update on our current understanding of these prominent immune actions of vitamin D, as well as highlighting new, less well-recognized immune effects of vitamin D. The review also aims to place this mechanistic basis for the link between vitamin D and immunity with studies in vivo that have explored a role for vitamin D supplementation as a strategy for improved immune health. This has gained prominence in recent months with the global coronavirus disease 2019 health crisis and highlights important new objectives for future studies of vitamin D and immune function. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Emma L Bishop
- Institute of Immunology and ImmunotherapyUniversity of BirminghamBirminghamUK
| | - Aiten Ismailova
- Department of PhysiologyMcGill UniversityMontrealQuebecCanada
| | - Sarah Dimeloe
- Institute of Immunology and ImmunotherapyUniversity of BirminghamBirminghamUK
- Metabolism and Systems ResearchUniversity of BirminghamBirminghamUK
| | - Martin Hewison
- Metabolism and Systems ResearchUniversity of BirminghamBirminghamUK
| | - John H White
- Department of PhysiologyMcGill UniversityMontrealQuebecCanada
- Department of MedicineMcGill UniversityMontrealQuebecCanada
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Zhang JY, Wu P, Chen D, Ning F, Lu Q, Qiu X, Hewison M, Tamblyn JA, Kilby MD, Lash GE. Vitamin D Promotes Trophoblast Cell Induced Separation of Vascular Smooth Muscle Cells in Vascular Remodeling via Induction of G-CSF. Front Cell Dev Biol 2020; 8:601043. [PMID: 33415106 PMCID: PMC7783206 DOI: 10.3389/fcell.2020.601043] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 12/04/2020] [Indexed: 01/08/2023] Open
Abstract
Vitamin D deficiency is associated with complications of pregnancy such as pre-eclampsia, fetal growth restriction, and miscarriage, all of which are also associated with incomplete spiral artery (SpA) remodeling. We have previously shown that both uterine natural killer (uNK) cells and extravillous trophoblast cells (EVT) are required for successful SpA remodeling, but whether their activity in this process is modulated by vitamin D is not known. In the current study, we use a previously described chorionic plate artery (CPA) ex vivo model of vascular remodeling to determine the effects of 1,25(OH)2D treated uNK cell, placental explant (PEx), and uNK/PEx conditioned medium (CM) on vascular smooth muscle cell (VSMC) disorganization and phenotypic switching. Significant results were followed up in VSMCs in vitro. We demonstrate that 1,25(OH)2D can enhance the ability of PEx to induce SpA remodeling, via a mechanism associated with increased secretion of granulocyte-colony stimulating factor (G-CSF). G-CSF appears able to increase VSMC disorganization and phenotypic switching in both an ex vivo vascular model and in vitro VSMC cultures. The clinical relevance of these findings are still to be determined. G-CSF may have differential effects depending on dose and vascular bed, and vitamin D may play a role in potentiating these actions. G-CSF may be an interesting potential therapeutic target for facilitating physiological vascular remodeling for the prevention of adverse obstetric outcomes.
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Affiliation(s)
- Joy Yue Zhang
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Peihuang Wu
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Danyang Chen
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Fen Ning
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Qinsheng Lu
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiu Qiu
- Born in Guangzhou Cohort, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Martin Hewison
- College of Medical and Dental Sciences, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
| | - Jennifer A Tamblyn
- College of Medical and Dental Sciences, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
| | - Mark D Kilby
- College of Medical and Dental Sciences, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom.,Fetal Medicine Centre, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, United Kingdom
| | - Gendie E Lash
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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47
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Ferraz GC, Andrade RRD, Reis FMP, Oliveira Neto OBD, Omena COD, Jucá MJ, Sousa-Rodrigues CFD, Barbosa FT. Association between vitamin D and cardioprotection in adult patients. REVISTA DA ASSOCIACAO MEDICA BRASILEIRA (1992) 2020; 66:1444-1448. [PMID: 33174941 DOI: 10.1590/1806-9282.66.10.1444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/24/2020] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To conduct a review of articles which have evaluated the relationship between vitamin D and cardioprotection in adult. METHODS A literature search was performed in the Pubmed and Scielo databases. The results were extracted from primary and secondary sources and will be presented in the form of a bibliographic review. RESULTS Twenty-three articles were identified from the electronic search that reported on physiological mechanisms relating the vitamin D axis and the cardiovascular system through receptors. Of the ten studies that evaluated the therapeutic effect of vitamin D in cardiovascular diseases, none reported significant results. CONCLUSION The articles assessed in this review did not demonstrate a cardioprotective effect of vitamin D, despite the epidemiological correlation of vitamin D deficiency with a higher prevalence of cardiovascular diseases.
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Affiliation(s)
| | | | | | | | | | - Mario Jorge Jucá
- Médico e Professor do Centro Universitário CESMAC, Maceió, AL, Brasil
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48
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Giustina A, Bouillon R, Binkley N, Sempos C, Adler RA, Bollerslev J, Dawson-Hughes B, Ebeling PR, Feldman D, Heijboer A, Jones G, Kovacs CS, Lazaretti-Castro M, Lips P, Marcocci C, Minisola S, Napoli N, Rizzoli R, Scragg R, White JH, Formenti AM, Bilezikian JP. Controversies in Vitamin D: A Statement From the Third International Conference. JBMR Plus 2020; 4:e10417. [PMID: 33354643 PMCID: PMC7745884 DOI: 10.1002/jbm4.10417] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/18/2020] [Accepted: 09/20/2020] [Indexed: 12/19/2022] Open
Abstract
The Third International Conference on Controversies in Vitamin D was held in Gubbio, Italy, September 10–13, 2019. The conference was held as a follow‐up to previous meetings held in 2017 and 2018 to address topics of controversy in vitamin D research. The specific topics were selected by the steering committee of the conference and based upon areas that remain controversial from the preceding conferences. Other topics were selected anew that reflect specific topics that have surfaced since the last international conference. Consensus was achieved after formal presentations and open discussions among experts. As will be detailed in this article, consensus was achieved with regard to the following: the importance and prevalence of nutritional rickets, amounts of vitamin D that are typically generated by sun exposure, worldwide prevalence of vitamin D deficiency, the importance of circulating concentrations of 25OHD as the best index of vitamin D stores, definitions and thresholds of vitamin D deficiency, and efficacy of vitamin D analogues in the treatment of psoriasis. Areas of uncertainly and controversy include the following: daily doses of vitamin D needed to maintain a normal level of 25OHD in the general population, recommendations for supplementation in patients with metabolic bone diseases, cutaneous production of vitamin D by UVB exposure, hepatic regulation of 25OHD metabolites, definition of vitamin D excess, vitamin D deficiency in acute illness, vitamin D requirements during reproduction, potential for a broad spectrum of cellular and organ activities under the influence of the vitamin D receptor, and potential links between vitamin D and major human diseases. With specific regard to the latter area, the proceedings of the conference led to recommendations for areas in need of further investigation through appropriately designed intervention trials. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, San Raffaele, Vita-Salute University and IRCCS Hospital Milan Italy
| | - Roger Bouillon
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases Metabolism and Ageing KU Leuven Leuven Belgium
| | - Neil Binkley
- Osteoporosis Clinical Research Program on Aging, University of Wisconsin Madison WI USA
| | | | - Robert A Adler
- McGuire Veterans Affairs Medical Center and Virginia Commonwealth University School of Medicine Richmond VA USA
| | - Jens Bollerslev
- Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital, Rikshospitalet, Oslo, Norway, and Faculty of Medicine University of Oslo Oslo Norway
| | - Bess Dawson-Hughes
- Jean Mayer USDA Nutrition Research Center on Aging Tufts University Boston MA USA
| | - Peter R Ebeling
- Department of Medicine, School of Clinical Sciences Monash University Calyton Victoria Australia
| | - David Feldman
- Department of Medicine Stanford University School of Medicine Stanford CA USA
| | - Annemieke Heijboer
- Endocrine Laboratory, Department of Clinical Chemistry Amsterdam UMC, Vrije Universiteit Amsterdam and University of Amsterdam, Amsterdam Gastroenterology & Metabolism Amsterdam The Netherlands
| | - Glenville Jones
- Department of Biomedical and Molecular Sciences Queen's University Kingston Ontario Canada
| | - Christopher S Kovacs
- Faculty of Medicine Memorial University of Newfoundland St. John's Newfoundland and Labrador Canada
| | - Marise Lazaretti-Castro
- Division of Endocrinology Escola Paulista de Medicina-Universidade Federal de Sao Paulo (EPM-UNIFESP) São Paulo Brazil
| | - Paul Lips
- Department of Internal Medicine, Endocrine Section Amsterdam University Medical Center Amsterdam The Netherlands
| | - Claudio Marcocci
- Department of Clinical and Experimental Medicine University of Pisa Pisa Italy
| | - Salvatore Minisola
- Department of Internal Medicine and Medical Disciplines University of Rome "Sapienza" Rome Italy
| | - Nicola Napoli
- Unit of Endocrinology and Diabetes Campus Bio-Medico, University of Rome Rome Italy.,Division of Bone and Mineral Diseases Washington University in St. Louis St. Louis MO USA
| | - Rene Rizzoli
- Service of Bone Diseases Geneva University Hospitals and Faculty of Medicine Geneva Switzerland
| | - Robert Scragg
- School of Population Health University of Auckland Auckland New Zealand
| | - John H White
- Department of Physiology McGill University Montreal Quebec Canada
| | - Anna Maria Formenti
- Institute of Endocrine and Metabolic Sciences, San Raffaele, Vita-Salute University and IRCCS Hospital Milan Italy
| | - John P Bilezikian
- Department of Medicine, Endocrinology Division, College of Physicians and Surgeons Columbia University New York NY USA
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49
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Jolliffe DA, Stefanidis C, Wang Z, Kermani NZ, Dimitrov V, White JH, McDonough JE, Janssens W, Pfeffer P, Griffiths CJ, Bush A, Guo Y, Christenson S, Adcock IM, Chung KF, Thummel KE, Martineau AR. Vitamin D Metabolism Is Dysregulated in Asthma and Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2020; 202:371-382. [PMID: 32186892 DOI: 10.1164/rccm.201909-1867oc] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Rationale: Vitamin D deficiency is common in patients with asthma and chronic obstructive pulmonary disease (COPD). Low 25-hydroxyvitamin D (25[OH]D) levels may represent a cause or a consequence of these conditions.Objectives: To determine whether vitamin D metabolism is altered in asthma or COPD.Methods: We conducted a longitudinal study in 186 adults to determine whether the 25(OH)D response to six oral doses of 3 mg vitamin D3, administered over 1 year, differed between those with asthma or COPD versus control subjects. Serum concentrations of vitamin D3, 25(OH)D3, and 1α,25-dihydroxyvitamin D3 (1α,25[OH]2D3) were determined presupplementation and postsupplementation in 93 adults with asthma, COPD, or neither condition, and metabolite-to-parent compound molar ratios were compared between groups to estimate hydroxylase activity. Additionally, we analyzed 14 datasets to compare expression of 1α,25(OH)2D3-inducible gene expression signatures in clinical samples taken from adults with asthma or COPD versus control subjects.Measurements and Main Results: The mean postsupplementation 25(OH)D increase in participants with asthma (20.9 nmol/L) and COPD (21.5 nmol/L) was lower than in control subjects (39.8 nmol/L; P = 0.001). Compared with control subjects, patients with asthma and COPD had lower molar ratios of 25(OH)D3-to-vitamin D3 and higher molar ratios of 1α,25(OH)2D3-to-25(OH)D3 both presupplementation and postsupplementation (P ≤ 0.005). Intergroup differences in 1α,25(OH)2D3-inducible gene expression signatures were modest and variable if statistically significant.Conclusions: Attenuation of the 25(OH)D response to vitamin D supplementation in asthma and COPD associated with reduced molar ratios of 25(OH)D3-to-vitamin D3 and increased molar ratios of 1α,25(OH)2D3-to-25(OH)D3 in serum, suggesting that vitamin D metabolism is dysregulated in these conditions.
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Affiliation(s)
- David A Jolliffe
- Asthma UK Centre for Applied Research, Institute of Population Health Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Christos Stefanidis
- Asthma UK Centre for Applied Research, Institute of Population Health Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Zhican Wang
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | | | - Vassil Dimitrov
- Department of Physiology, McGill University, Montreal, Quebec, Canada
| | - John H White
- Department of Physiology, McGill University, Montreal, Quebec, Canada
| | | | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases, Metabolism and Ageing, Katholieke Universiteit Leuven, Leuven, Belgium; and
| | - Paul Pfeffer
- Asthma UK Centre for Applied Research, Institute of Population Health Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Christopher J Griffiths
- Asthma UK Centre for Applied Research, Institute of Population Health Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Andrew Bush
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Yike Guo
- Data Science Institute, William Penney Laboratory and
| | - Stephanie Christenson
- Division of Pulmonary, Critical Care, Allergy, & Sleep Medicine, Department of Medicine, University of California, San Francisco, California
| | - Ian M Adcock
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Kian Fan Chung
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Kenneth E Thummel
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | - Adrian R Martineau
- Asthma UK Centre for Applied Research, Institute of Population Health Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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50
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Ahmed LHM, Butler AE, Dargham SR, Latif A, Chidiac OM, Atkin SL, Abi Khalil C. Vitamin D 3 metabolite ratio as an indicator of vitamin D status and its association with diabetes complications. BMC Endocr Disord 2020; 20:161. [PMID: 33109163 PMCID: PMC7590744 DOI: 10.1186/s12902-020-00641-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/20/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Vitamin D deficiency is diagnosed by total serum 25-hydroxyvitamin D (25(OH)D) concentration and is associated with poor health and increased mortality; however, some populations have low 25(OH) D concentrations without manifestations of vitamin D deficiency. The Vitamin D Metabolite Ratio (VMR) has been suggested as a superior indicator of vitamin D status. Therefore, VMR was determined in a population with type 2 diabetes at high risk for vitamin D deficiency and correlated with diabetic complications. RESEARCH DESIGN AND METHODS Four hundred sisty patients with type 2 diabetes (T2D) were recruited, all were vitamin D3 supplement naive. Plasma concentration of 25-hydroxyvitamin D3 (25(OH)D3) and its metabolites 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) and 24,25-dihydroxyvitamin D3 (24,25(OH)2D3) and its epimer, 3-epi-25-hydroxyvitamin D3 (3-epi-25(OH)D3), were measured by LC-MS/MS analysis. VMR-1 was calculated as a ratio of 24,25(OH)2D3:25(OH)D3; VMR-2 as a ratio of 1,25(OH)2D3:25(OH)D3; VMR-3 was calculated as a ratio of 3-epi-25(OH)D3: 25(OH)D3. RESULTS: An association means that there were significant differences between the ratios found for those with versus those without the various diabetic complications studied. VMR-1 was associated with diabetic retinopathy (p = 0.001) and peripheral artery disease (p = 0.012); VMR-2 associated with hypertension (p < 0.001), dyslipidemia (p < 0.001), diabetic retinopathy (p < 0.001), diabetic neuropathy (p < 0.001), coronary artery disease (p = 0.001) and stroke (p < 0.05). VMR-3 associated with hypertension (p < 0.05), dyslipidemia (p < 0.001) and coronary artery disease (p < 0.05). CONCLUSIONS In this cross sectional study, whilst not causal, VMR-2 was shown to be the superior predictor of diabetic and cardiovascular complications though not demonstrative of causality in this cross-sectional study population over VMR-1, VMR-3 and the individual vitamin D concentration measurements; VMR-2 associated with both microvascular and cardiovascular indices and therefore may have utility in predicting the development of diabetic complications.
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Affiliation(s)
| | - Alexandra E Butler
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), PO Box 34110, Doha, Qatar.
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