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Voltan G, Cannito M, Ferrarese M, Ceccato F, Camozzi V. Vitamin D: An Overview of Gene Regulation, Ranging from Metabolism to Genomic Effects. Genes (Basel) 2023; 14:1691. [PMID: 37761831 PMCID: PMC10531002 DOI: 10.3390/genes14091691] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/17/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
Vitamin D is a pro-hormone characterized by an intricate metabolism and regulation. It is well known for its role in calcium and phosphate metabolism, and in bone health. However, several studies have assessed a huge number of extra-skeletal functions, ranging from cell proliferation in some oncogenic pathways to antioxidant and immunomodulatory functions. Vitamin D exerts its role by binding to VDRs (vitamin D receptors), which are located in many different tissues. Moreover, VDRs are able to bind hundreds of genomic loci, modulating the expression of various primary target genes. Interestingly, plenty of gene polymorphisms regarding VDRs are described, each one carrying a potential influence against gene expression, with relapses in several chronic diseases and metabolic complications. In this review, we provide an overview of the genetic aspects of vitamin D and VDR, emphasizing the gene regulation of vitamin D, and the genetic modulation of VDR target genes. In addition, we briefly summarize the rare genetic disease linked to vitamin D metabolism.
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Affiliation(s)
- Giacomo Voltan
- Department of Medicine (DIMED), University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (G.V.); (M.C.); (M.F.); (V.C.)
- Endocrinology Unit, Padova University Hospital, Via Ospedale Civile 105, 35128 Padova, Italy
| | - Michele Cannito
- Department of Medicine (DIMED), University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (G.V.); (M.C.); (M.F.); (V.C.)
- Endocrinology Unit, Padova University Hospital, Via Ospedale Civile 105, 35128 Padova, Italy
| | - Michela Ferrarese
- Department of Medicine (DIMED), University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (G.V.); (M.C.); (M.F.); (V.C.)
- Endocrinology Unit, Padova University Hospital, Via Ospedale Civile 105, 35128 Padova, Italy
| | - Filippo Ceccato
- Department of Medicine (DIMED), University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (G.V.); (M.C.); (M.F.); (V.C.)
- Endocrinology Unit, Padova University Hospital, Via Ospedale Civile 105, 35128 Padova, Italy
| | - Valentina Camozzi
- Department of Medicine (DIMED), University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (G.V.); (M.C.); (M.F.); (V.C.)
- Endocrinology Unit, Padova University Hospital, Via Ospedale Civile 105, 35128 Padova, Italy
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da Silveira EA, Moura LDANE, Castro MCR, Kac G, Hadler MCCM, Noll PRES, Noll M, Rezende ATDO, Delpino FM, de Oliveira C. Prevalence of Vitamin D and Calcium Deficiency and Insufficiency in Women of Childbearing Age and Associated Risk Factors: A Systematic Review and Meta-Analysis. Nutrients 2022; 14:nu14204351. [PMID: 36297034 PMCID: PMC9612098 DOI: 10.3390/nu14204351] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/01/2022] [Accepted: 10/01/2022] [Indexed: 11/25/2022] Open
Abstract
Vitamin D deficiency and insufficiency as well as low serum calcium levels can trigger negative health outcomes in women of childbearing age. Therefore, we aimed to estimate the prevalence of serum vitamin D and calcium deficiencies and insufficiencies and associated risk factors in Brazilian women of childbearing age and to assess whether there are differences in prevalence according to regions of the country and the presence or absence of pregnancy. The systematic literature review was performed using the following databases: PubMed, LILACS, Embase, Scopus, and Web of Science. Cross-sectional, cohort, and intervention studies were included. Among pregnant women, the prevalence of vitamin D deficiency ranged from 0% to 27% and of vitamin D insufficiency from 33.9% to 70.4%. Among non-pregnant women, the prevalence of vitamin D deficiency ranged from 0% to 41.7% and of vitamin D insufficiency from 38.5% to 69.3%. We found a high prevalence of vitamin D deficiency and insufficiency in women of childbearing age, with insufficiency affecting more than half of these women. The highest prevalence of vitamin D deficiency and insufficiency was observed in the South region. It was not possible to assess the prevalence and factors associated with calcium deficiency.
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Affiliation(s)
- Erika Aparecida da Silveira
- Health Science Graduate Program, Faculty of Medicine, Federal University of Goiás, Goiânia 74605-050, GO, Brazil
- Department of Epidemiology and Public Health, University College London, London WC1E 6BT, UK
- Correspondence: ; Tel.: +55-6232096146
| | | | - Maria Clara Rezende Castro
- Health Science Graduate Program, Faculty of Medicine, Federal University of Goiás, Goiânia 74605-050, GO, Brazil
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
| | - Maria Claret Costa Monteiro Hadler
- Health Science Graduate Program, Faculty of Medicine, Federal University of Goiás, Goiânia 74605-050, GO, Brazil
- Graduate Program in Nutrition and Health, Faculty of Nutrition, Federal University of Goiás, Goiânia 74605-050, GO, Brazil
| | - Priscilla Rayanne E. Silva Noll
- Department of Obstetrics and Gynaecology, University of São Paulo, São Paulo 05403-000, SP, Brazil
- Campus Ceres, Federal Institute Goiano, Ceres 76300-000, GO, Brazil
| | - Matias Noll
- Health Science Graduate Program, Faculty of Medicine, Federal University of Goiás, Goiânia 74605-050, GO, Brazil
- Campus Ceres, Federal Institute Goiano, Ceres 76300-000, GO, Brazil
| | | | - Felipe Mendes Delpino
- Postgraduate Program in Nursing, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Cesar de Oliveira
- Department of Epidemiology and Public Health, University College London, London WC1E 6BT, UK
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Ahmed AEA, Hassan MH, Toghan R, Rashwan NI. Analysis of 25-hydroxy cholecalciferol, immunoglobulin E, and vitamin D receptor single nucleotide polymorphisms (Apa1, Taq1, and Bsm1), among sample of Egyptian children with bronchial asthma: A case-control study. Pediatr Pulmonol 2020; 55:1349-1358. [PMID: 32311846 DOI: 10.1002/ppul.24785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE The current study aimed to assess the serum levels of vitamin D and immunoglobulin E (IgE) among asthmatic Egyptian children and to find out the possible associations of vitamin D receptor (VDR) polymorphisms with bronchial asthma development. METHODS The study included 100 Egyptian children, 50 asthmatic children who were comparable with 50 age, sex, and body mass index-matched, unrelated healthy controls (HCs) clinical assessments of asthmatic children were done using global initiative of asthma. Pulmonary function tests (forced expiratory volume in 1 second [FEV1], forced vital capacity [FVC], FEV1/FVC ratio) were performed. Enzyme-linked immunosorbent assays of serum vitamin D3 and total IgE were done. VDR-single nucleotide polymorphisms (SNPs) (ApaI, TaqI, and BsmI) detection has performed using polymerase chain reaction through restriction fragment length polymorphism technique. Data analysis was performed using SPSS version 20.0. The studied SNPs were followed the Hardy Weinberg equation. RESULTS The mean serum level of 25(OH) D3 was significantly lower among asthmatic children (13.46 ng/mL ± 10.50 SD) in comparison to HCs (37.53 ng/mL ± 13. 0.40 SD), P < .05. Vitamin D deficiency was detected in 72% of cases with no significant difference in its level regarding asthma control. There was significantly higher IgE level among asthmatic children (99.83 ku/L ± 233.81 SD) versus HCs (7.52 ku/L ± 3.32 SD), P < .05. Asthmatic children were presented more commonly with TaqI t allele (odds ratio [OR], 2.25; 95% confidence interval [CI], 1.28-3.96; P < .05) and BsmI b allele (OR, 1.83; 95% CI, 1.05-3.21; P < .05). ApaI a allele was not significantly different among patients versus controls (P > .05). TT + Tt and Bb + bb genotypes were significantly higher among cases versus the controls, P < .05 for all. CONCLUSIONS TaqI and BsmI were associated with risk of bronchial asthma development among Egyptian children. High IgE and Low vitamin D status were frequently occurring among asthmatic children.
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Affiliation(s)
- Ahmed El-Abd Ahmed
- Department of Pediatrics, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Mohammed H Hassan
- Department of Medical Biochemistry, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Rana Toghan
- Department of Medical Physiology, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Nagwan I Rashwan
- Department of Pediatrics, Faculty of Medicine, South Valley University, Qena, Egypt
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Kondratyeva EI, Zakharova IN, Ilenkova NA, Klimov LY, Petrova NV, Zodbinova AE, Zhekaite EK, Chikunov VV, Dolbnya SV, Voronkova AY, Sherman VD, Loshkova EV, Melyanovskaya YL, Budzinskiy RM, Kuryaninova VA, Kutsev SI. Vitamin D Status in Russian Children and Adolescents: Contribution of Genetic and Exogenous Factors. Front Pediatr 2020; 8:583206. [PMID: 33330279 PMCID: PMC7710665 DOI: 10.3389/fped.2020.583206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022] Open
Abstract
Background: The problem of vitamin D deficiency is particularly relevant for the entire territory of Russia, since most parts of the country are located above the 42nd geographical latitude and the residents are therefore at risk of vitamin D deficiency. Despite the urgency of the problem, a comprehensive study of the molecular and genetic mechanisms and exogenous factors of vitamin D deficiency in children living in various geographical areas of the Russian Federation has not been conducted. Different variants in the loci of the genes responsible for the synthesis, hydroxylation, and transport of vitamin D (such as DHCR7, CYP2R1, CYP24A1, and GC), as well as VDR gene polymorphisms may also be associated with the risk of vitamin D deficiency. The aim of this study was to analyze the influence of exogenous factors on the blood levels of 25-hydroxyvitamin D (25(OH)D) in children of three regions of the Russian Federation, as well as the relationship of blood 25(OH)D levels with polymorphic variants of cytochrome P450 genes and VDR gene. Methods: We conducted blood 25(OH)D level analysis in 333 healthy children and adolescents in three regions located in different geographical zones of the Russian Federation. We studied the polymorphic variants c.1075A>C (I359L, rs1057910, CYP2C9 * 3) and c.430C>T (R144C, rs1799853, CYP2C9 * 2) in the CYP2C9 gene, c.1334T>C (M445T, rs4986910, CYP3A4 * 3), and CYP3A4 * 1B (c.-392C>T, rs2740574) in the CYP3A4 gene, 1846G>A, (rs3892097, CYP2D6 * 4) in the CYP2D6gene, TaqI (NM_000376.2: c.1056T>C; rs731236), FokI (NM_000376.2:c.2T>C; (rs2228570), and BsmI (NM_000376.2: c.1024+283G>A; rs1544410) in the VDR gene. We also analyzed the influence of exogenous factors on the level of 25(OH)D in children of the three study regions, as well as the relationship of the level of 25(OH)D with variants CYP2C9 * 2 (c.430C>T; R144C), CYP2C9 * 3 (c,1075A>C; I359L), CYP2D6 * 4 (1846G>A), CYP3A4 * 3 (c.1334T>C), and CYP3A4 * 1B (c.-392C>T) and rs731236, rs2228570 and rs1544410 in the VDR gene. Results: We found that the blood level of 25(OH)D depended on the geographical location and the number of sunny days per year. The average blood level of 25(OH)D in adolescent boys was statistically significantly lower than in girls of this age group. The level of 25(OH)D also significantly depended on the prophylactic dose of cholecalciferol administered to the subjects. In the study, it was shown that a dose of cholecalciferol ≥1,000 IU per day can achieve a normal level of 25(OH)D in healthy children. We found no statistically significant association between single-nucleotide polymorphic variants of cytochrome P450 genes (CYP2C9 * 3, CYP3A4 * 3, CYP2C9 * 2, CYP2D6 * 4, and CYP3A4 * 1B) and blood level of 25(OH)D in the subjects. We also did not find a relationship between the TaqI, FokI, and BsmI polymorphisms of the VDR gene and serum 25(OH)D concentration. Conclusion: Exogenous factors (time of year, place of residence, and prophylactic administration of cholecalciferol), as well as endogenous factors (age and sex), play a determining role in the development of vitamin D deficiency and insufficiency; in contrast to genetic factors-polymorphic variants of the genes of xenobiotic phase 1 enzymes (CYP2C9, CYP2C19, CYP2D6, and CYP3A4) and the VDR gene-which do not play such role. This study shows the need to create a diagnostic algorithm for Vitamin D deficiency based on the age, season of the year, and prophylactic dose of cholecalciferol.
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Affiliation(s)
| | - Irina N Zakharova
- Department of Paediatrics, Russian Medical Academy of Continuous Postgraduate Education, Moscow, Russia
| | - Natalya A Ilenkova
- Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
| | - Leonid Ya Klimov
- Department of Paediatrics, Stavropol State Medical University, Stavropol, Russia
| | | | | | | | | | - Svetlana V Dolbnya
- Department of Paediatrics, Stavropol State Medical University, Stavropol, Russia
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Multiple genome analyses reveal key genes in Vitamin C and Vitamin D synthesis and transport pathways are shared. Sci Rep 2019; 9:16811. [PMID: 31727908 PMCID: PMC6856197 DOI: 10.1038/s41598-019-53074-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/24/2019] [Indexed: 02/06/2023] Open
Abstract
Vitamin C (VC) and vitamin D (VD) have been widely used as the dietary supplements and in treatment of diseases both independently and in combination. Whether there is a connection between their pathways is critical for their therapeutic applications. Using whole-genome expression profiles, we performed multiple measures of associations, networks, eQTL mappings and expressions of key genes of interest in VC and VD functions. Several key genes in their pathways were found to be associated. Gc and Rgn play important roles connecting VC and VD pathways in mice. The r values of expression levels between Gc and Rgn in mouse spleen, liver, lung, and kidney are 0.937, 0.558, 0.901, and 0.617, respectively. The expression QTLs of Gc and Rgn are mapped onto the same locations, i.e., 68-76 MB in chromosome 7 and 26-36 MB in chromosome 9. In humans, there are positive correlations between CYP27B1 and SLC23A1 expression levels in kidney (r = 0.733) and spleen (r = 0.424). SLC23A2 and RXRA are minimally associated in both mouse and human. These data indicate that pathways of VC and VD are not independent but affect each other, and this effect is different between mice and humans during VC and VD synthesis and transportation.
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Mazul AL, Weinberg CR, Engel SM, Siega-Riz AM, Zou F, Carrier KS, Basta PV, Vaksman Z, Maris JM, Diskin SJ, Maxen C, Naranjo A, Olshan AF. Neuroblastoma in relation to joint effects of vitamin A and maternal and offspring variants in vitamin A-related genes: A report of the Children's Oncology Group. Cancer Epidemiol 2019; 61:165-171. [PMID: 31279991 PMCID: PMC6730673 DOI: 10.1016/j.canep.2019.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 06/14/2019] [Accepted: 06/19/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND There is evidence vitamin A plays a role in neuroblastoma. Not only is 13-cis-retinoic acid used as maintenance therapy for high-risk cases, but prenatal vitamin intake use may decrease neuroblastoma risk. We hypothesized that single nucleotide polymorphisms (SNPs) in vitamin A-related genes are may be associated with neuroblastoma risk and potentially be modified by vitamin A intake. METHODS The Neuroblastoma Epidemiology in North America (NENA) study recruited 563 case-parent sets through the Children's Oncology Group's Childhood Cancer Research Network. We ascertained dietary nutrient intake through questionnaires and genotyped 463 SNPs in vitamin A-related genes from saliva DNA. Offspring and maternal log-additive risk ratios (RR) and stratum-specific RR for gene-environment interaction were estimated with a log-linear model. We avoided false positives due to multiple testing by using the false discovery rate (FDR). RESULTS When all neuroblastoma cases were considered together, no offspring variants met the significance criteria (FDR Q-value < 0.2). One maternal SNP (rs12442054) was associated with decreased risk of neuroblastoma (RR: 0.61; 95% Confidence Interval (CI): 0.47-0.79, Q = 0.076). When the cases were categorized according to prognostic risk category and age at onset, nine offspring SNPs were significantly associated with intermediate-risk neuroblastoma. Maternal rs6776706 was associated with (RR: 0.49; 95% CI: 0.33-0.72, Q = 0.161) high-risk neuroblastoma and maternal rs11103603 (RR: 0.60; 95% CI: 0.45-0.79, Q = 0.127) was associated with neuroblastoma aged <1 year. For gene-environment interaction, maternal rs729147 was associated with decreased risk of neuroblastoma among mothers with vitamin A consumption above the recommendation. CONCLUSIONS Although there is biologic plausibility for the role of vitamin A in neuroblastoma, we found weak evidence of a relationship between vitamin A related genes and neuroblastoma.
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Affiliation(s)
- Angela L Mazul
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States; Department of Otolaryngology, Washington University School of Medicine, St Louis, MO, 63110.
| | - Clarice R Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences Durham, NC, United States
| | - Stephanie M Engel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
| | - Anna Maria Siega-Riz
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States; Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
| | - Fei Zou
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
| | - Kathryn S Carrier
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
| | - Patricia V Basta
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States; Biospecimen Processing Center, University of North Carolina, Chapel Hill, NC, United States
| | - Zalman Vaksman
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - John M Maris
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Sharon J Diskin
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Charlene Maxen
- Showers Center for Childhood Cancer and Blood Disorder, Akron Children's Hospital, Akron, OH, United States
| | - Arlene Naranjo
- Department of Biostatistics, Colleges of Medicine and Public Health & Health Professions, University of Florida, Children's Oncology Group Statistics & Data Center, Gainesville, FL, United States
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
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Rajaram M, Selvarajan S, Neelamegan R, Kamalanathan S, Gunaseelan V, Xavier AS, Das S, Karthikeyan V, Saka V, Chandrasekaran A. Effects of genetic polymorphisms in Vitamin D metabolic pathway on Vitamin D level and asthma control in South Indian patients with bronchial asthma. Lung India 2019; 36:483-491. [PMID: 31670295 PMCID: PMC6852217 DOI: 10.4103/lungindia.lungindia_23_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objectives: The study was designed to evaluate the single-nucleotide polymorphisms (SNPs) of genes involved in Vitamin D actions (rs2228570) and metabolic pathways (rs2248137 and rs10766197) and their associations with serum 25-hydroxy Vitamin D (25(OH)D) level and asthma control in South Indian patients with bronchial asthma. Materials and Methods: One hundred and two patients of South Indian origin with bronchial asthma either naive to inhaled corticosteroids (ICSs) or not receiving ICS for ≥1 month were included and were treated with ICS (beclomethasone 200 μg twice daily) for 8 weeks. One hundred and one unrelated healthy South Indians were used as controls. Pulmonary function test and fractional exhaled nitric oxide were used to assess asthma control. Serum 25(OH)D levels (chemiluminescence immunoassay) and SNPs in Vitamin D pathway (real-time polymerase chain reaction) were assessed. The associations of SNPs and serum 25(OH)D with asthma control was determined using linear regression. All analyses were performed using SPSS (version 19) and “SNPStats.” P < 0.05 was considered as statistically significant. Results: Vitamin D receptor (VDR) polymorphism (rs2228570) was found to be protective against asthma (P = 0.022), while there were no significant associations between the other two SNPs and asthma. Similarly, poor correlation and insignificant associations between the SNPs and serum 25(OH)D levels were observed in both cases and controls. There were also insignificant associations between the SNPs and asthma control. Conclusion: VDR polymorphism (rs2228570) was found to be protective against asthma in South Indians, while other genes involved in the metabolic pathway of Vitamin D did not show associations with asthma.
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Affiliation(s)
- Manju Rajaram
- Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Sandhiya Selvarajan
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Revathy Neelamegan
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Sadishkumar Kamalanathan
- Department of Endocrinology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | | | - Alphienes Stanley Xavier
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Saibal Das
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Vignesh Karthikeyan
- Centre for Biotechnology, Cell Signaling Laboratory, Anna University, Chennai, Tamil Nadu, India
| | - Vinodkumar Saka
- Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Adithan Chandrasekaran
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
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8
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Szili B, Szabó B, Horváth P, Bakos B, Kirschner G, Kósa JP, Toldy E, Putz Z, Lakatos P, Tabák Á, Takács I. Impact of genetic influence on serum total- and free 25-hydroxyvitamin-D in humans. J Steroid Biochem Mol Biol 2018; 183:62-67. [PMID: 29792983 DOI: 10.1016/j.jsbmb.2018.05.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/09/2018] [Accepted: 05/20/2018] [Indexed: 01/17/2023]
Abstract
Serum 25-hydroxyvitamin D /25OHD/ levels in humans are determined primarily by environmental factors such as UV-B radiation and diet, including vitamin D intake. Although some genetic determinants of 25OHD levels have been shown, the magnitude of this association has not yet been clarified. The present study evaluates the genetic contribution to total- /t-25OHD/ and free-25OHD /f-25OHD/ in a representative sample of the Hungarian population (n = 462). The study was performed at the end of winter to minimize the effect of sunlight, which is a major determinant of serum vitamin D levels. Single nucleotide polymorphisms (SNPs) of five genes playing major roles in vitamin D metabolism were investigated (NADSYN1, DHCR7, GC, CYP2R1 and CYP24A1). The selected SNPs account for 13.1% of the variance of t-25OHD levels. More than half of the genetic effect on t-25OHD levels was explained by two polymorphisms (rs7935125 in NADSYN1 and rs2762941 in CYP24A1), which had not previously been investigated with respect to vitamin D metabolism. No SNPs exhibited association with f-25OHD levels. Unexpectedly, SNPs that showed univariate associations with vitamin D binding protein (DBP) levels were not associated with f-25OHD levels questioning the biological significance of these polymorphisms. The present study shows that t-25OHD levels are significantly influenced by genetic factors, however, the clinical significance of this observation remains to be defined, as variation in f-25OHD levels are marginally explained by genetic effects.
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Affiliation(s)
- Balázs Szili
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Boglárka Szabó
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Péter Horváth
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Bence Bakos
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Györgyi Kirschner
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - János P Kósa
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Erzsébet Toldy
- Institute of Diagnostics, Faculty of Health Science, University of Pécs, Pécs, Hungary; Central Laboratory, Markusovszky Teaching Hospital, Szombathely, Hungary
| | - Zsuzsanna Putz
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Péter Lakatos
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Ádám Tabák
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary; Department of Epidemiology and Public Health, University College London, London, UK
| | - István Takács
- Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary.
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Agnello L, Scazzone C, Lo Sasso B, Ragonese P, Milano S, Salemi G, Ciaccio M. CYP27A1, CYP24A1, and RXR-α Polymorphisms, Vitamin D, and Multiple Sclerosis: a Pilot Study. J Mol Neurosci 2018; 66:77-84. [PMID: 30088172 DOI: 10.1007/s12031-018-1152-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/31/2018] [Indexed: 12/19/2022]
Abstract
Multiple sclerosis (MS) is a neurodegenerative autoimmune disease resulting from a complex interaction of genetic and environmental factors. Hypovitaminosis D seems to contribute to MS susceptibility as both an environmental and a genetic risk factor. The aim of our study was to investigate the association of SNPs in CYP27A1, CYP24A1, and RXR- α genes, vitamin D status, and MS risk. We performed a nested case-control study on patients with multiple sclerosis and healthy controls. Serum 25(OH)D3 levels and genotyping of CYP27A1, CYP24A1, and RXR-α -SNPs were investigated both in MS patients and in healthy controls. Serum 25(OH)D3 levels were measured by a high-performance liquid chromatography (HPLC). Molecular analysis was performed by real-time PCR. The distribution of genotypic and allelic frequencies was not significantly different between patients and controls, except for rs2248137 CYP24A1. In particular, CC genotype (C minor allele) showed a higher frequency in MS patients in comparison to healthy controls. Moreover, we observed significantly lower serum 25(OH)D3 levels in MS patients with CC genotype in comparison to MS patients with GG and GC genotype. The findings of our study suggest a role of rs2248137 CYP24A1 in multiple sclerosis risk.
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Affiliation(s)
- Luisa Agnello
- Department of Biopathology and Medical Biotechnologies, Section of Clinical Biochemistry and Clinical Molecular Medicine, University of Palermo, Via del Vespro, 129, 90127, Palermo, Italy
| | - Concetta Scazzone
- Department of Biopathology and Medical Biotechnologies, Section of Clinical Biochemistry and Clinical Molecular Medicine, University of Palermo, Via del Vespro, 129, 90127, Palermo, Italy
| | - Bruna Lo Sasso
- Department of Biopathology and Medical Biotechnologies, Section of Clinical Biochemistry and Clinical Molecular Medicine, University of Palermo, Via del Vespro, 129, 90127, Palermo, Italy
| | - Paolo Ragonese
- Department of Experimental Biomedicine and Neuroscience, University of Palermo, Palermo, Italy
| | - Salvatore Milano
- Department of Laboratory Medicine, University-Hospital, Palermo, Italy
| | - Giuseppe Salemi
- Department of Experimental Biomedicine and Neuroscience, University of Palermo, Palermo, Italy
| | - Marcello Ciaccio
- Department of Biopathology and Medical Biotechnologies, Section of Clinical Biochemistry and Clinical Molecular Medicine, University of Palermo, Via del Vespro, 129, 90127, Palermo, Italy. .,Department of Laboratory Medicine, University-Hospital, Palermo, Italy.
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10
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Silva ON, Porto WF, Ribeiro SM, Batista I, Franco OL. Host-defense peptides and their potential use as biomarkers in human diseases. Drug Discov Today 2018; 23:1666-1671. [PMID: 29803935 DOI: 10.1016/j.drudis.2018.05.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/06/2018] [Accepted: 05/21/2018] [Indexed: 02/07/2023]
Abstract
Since the early 19th century, host-defense peptides (HDPs) have been known to play a crucial role in innate host defense. Subsequent work has demonstrated their role in adaptive immunity as well as their involvement in cancer and also a number of inflammatory and/or autoimmune diseases. In addition to these multiple functional activities, several studies have shown that HDP accumulation might be correlated with various human diseases and, therefore, could be used as a biomarkers for such. Thus, research has aimed to validate the clinical use of HDPs for diagnosis, prognosis, and further treatment. In this review, we outline the most recent findings related to the use of HDPs as biomarkers, their clinical and epidemiological value, and the techniques used to determine the levels of HDPs.
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Affiliation(s)
- Osmar N Silva
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - William F Porto
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil; Porto Reports, 70790-160, Brasília, DF, Brazil
| | - Suzana M Ribeiro
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados-MS
| | - Ingrid Batista
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Octavio Luiz Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil; Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, DF, Brazil; Departamento de Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil.
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11
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Witold K, Anna K, Maciej T, Jakub J. Adenomas - Genetic factors in colorectal cancer prevention. Rep Pract Oncol Radiother 2018; 23:75-83. [PMID: 29463957 PMCID: PMC5814382 DOI: 10.1016/j.rpor.2017.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 07/17/2017] [Accepted: 12/27/2017] [Indexed: 12/21/2022] Open
Abstract
Colorectal cancer is the second most common type of cancer both in Europe and Poland. During the last 30 years more than a 3-fold increase has been observed in Poland due to environmental and genetic factors. Almost all colorectal malignancies are related to the formation and malignant transformation of colorectal dysplasia and adenoma. Efforts aiming to decrease the number of colorectal cancer deaths are focused on the disease early detection. Genetic diagnosis for hereditary syndromes predisposing to colorectal cancer has been developed and is a part of the routine treatment. Most cancers are sporadic. They often develop from polyps in the colon. In addition to the genetic events described in the 1990s, showing the adenoma transformation into carcinoma that has been a prime example of malignant transformation for a long time, there are also other possibilities of neoplastic transformation. The recognition of colorectal cancer risk factors make sense as their nature is lifestyle- and diet-related. In this review paper those risk factors are presented and the prevention of colorectal cancer is discussed taking into account genetic factors.
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Affiliation(s)
- Kycler Witold
- Department of Oncological Surgery of Gastrointestinal Diseases, Greater Poland Cancer Centre, 15 Garbary St., 61-866 Poznan, Poland
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, 10 Fredry St., 61-701 Poznan, Poland
| | - Kubiak Anna
- Department of Epidemiology and Cancer Prevention, Greater Poland Cancer Registry – The Greater Poland Cancer Centre, 15 Garbary St., 61-866 Poznan, Poland
| | - Trojanowski Maciej
- Department of Epidemiology and Cancer Prevention, Greater Poland Cancer Registry – The Greater Poland Cancer Centre, 15 Garbary St., 61-866 Poznan, Poland
| | - Janowski Jakub
- Department of Oncological Surgery of Gastrointestinal Diseases, Greater Poland Cancer Centre, 15 Garbary St., 61-866 Poznan, Poland
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12
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Morris J, Moseley VR, Cabang AB, Coleman K, Wei W, Garrett-Mayer E, Wargovich MJ. Reduction in promotor methylation utilizing EGCG (epigallocatechin-3-gallate) restores RXRα expression in human colon cancer cells. Oncotarget 2018; 7:35313-26. [PMID: 27167203 PMCID: PMC5085231 DOI: 10.18632/oncotarget.9204] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 04/16/2016] [Indexed: 12/16/2022] Open
Abstract
Silencing of regulatory genes through hypermethylation of CpG islands is an important mechanism in tumorigenesis. In colon cancer, RXRα, an important dimerization partner with other nuclear transcription factors, is silenced through this mechanism. We previously found that colon tumors in ApcMin/+ mice had diminished levels of RXRα protein and expression levels of this gene were restored by treatment with a green tea intervention, due to reduced promoter methylation of RXRα. We hypothesized that CIMP+ cell lines, which epigenetically silence key regulatory genes would also evidence silencing of RXRα and EGCG treatment would restore its expression. We indeed found EGCG to restore RXRα activity levels in the human cell lines, in a dose dependent manner and reduced RXRα promoter methylation. EGCG induced methylation changes in several other colon cancer related genes but did not cause a decrease in global methylation. Numerous epidemiological reports have shown the benefits of green tea consumption in reducing colon cancer risk but to date no studies have shown that the risk reduction may be related to the epigenetic restoration by tea polyphenols. Our results show that EGCG modulates the reversal of gene silencing involved in colon carcinogenesis providing a possible avenue for colon cancer prevention and treatment.
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Affiliation(s)
- Jay Morris
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Vondina R Moseley
- Department of Cell & Molecular Pharmacology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - April B Cabang
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Katie Coleman
- Department of Cell & Molecular Pharmacology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Wei Wei
- Department of Public Health Science, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Elizabeth Garrett-Mayer
- Department of Biostatistics & Epidemiology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Michael J Wargovich
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
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13
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Bahrami A, Sadeghnia HR, Tabatabaeizadeh SA, Bahrami-Taghanaki H, Behboodi N, Esmaeili H, Ferns GA, Mobarhan MG, Avan A. Genetic and epigenetic factors influencing vitamin D status. J Cell Physiol 2017; 233:4033-4043. [PMID: 29030989 DOI: 10.1002/jcp.26216] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/09/2017] [Indexed: 12/27/2022]
Abstract
The global prevalence of vitamin D deficiency appears to be increasing, and the impact of this on human health is important because of the association of vitamin D insufficiency with increased risk of osteoporosis, cardiovascular disease and some cancers. There are few studies on the genetic factors that can influence vitamin D levels. In particular, the data from twin and family-based studies have reported that circulating vitamin D concentrations are partially determined by genetic factors. Moreover, it has been shown that genetic variants (e.g., mutation) and alteration (e.g., deletion, amplification, inversion) in genes involved in the metabolism, catabolism, transport, or binding of vitamin D to it receptor, might affect vitamin D level. However, the underlying genetic determinants of plasma 25-hydroxyvitamin D3 [25(OH)D] concentrations remain to be elucidated. Furthermore, the association between epigenetic modifications such as DNA methylation and vitamin D level has now been reported in several studies. The aim of current review was to provide an overview of the possible value of loci associated to vitamin D metabolism, catabolism, and transport as well epigenetic modification and environmental factors influencing vitamin D status.
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Affiliation(s)
- Afsane Bahrami
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Sadeghnia
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.,Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed-Amir Tabatabaeizadeh
- Department of Clinical Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamidreza Bahrami-Taghanaki
- Complementary and Chinese Medicine, Persian and Complementary Medicine Faculty, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Negin Behboodi
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Habibollah Esmaeili
- Department of Biostatistics & Epidemiology, School of Health, Management & Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Falmer, Sussex BN1 9PH, Brighton, UK
| | - Majid Ghayour Mobarhan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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14
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McKay GJ, Young IS, McGinty A, Bentham GC, Chakravarthy U, Rahu M, Seland J, Soubrane G, Tomazzoli L, Topouzis F, Vioque J, de Jong PT, Fletcher AE. Associations between Serum Vitamin D and Genetic Variants in Vitamin D Pathways and Age-Related Macular Degeneration in the European Eye Study. Ophthalmology 2017; 124:90-96. [DOI: 10.1016/j.ophtha.2016.09.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/09/2016] [Accepted: 09/09/2016] [Indexed: 12/25/2022] Open
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15
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Jolliffe DA, Walton RT, Griffiths CJ, Martineau AR. Single nucleotide polymorphisms in the vitamin D pathway associating with circulating concentrations of vitamin D metabolites and non-skeletal health outcomes: Review of genetic association studies. J Steroid Biochem Mol Biol 2016; 164:18-29. [PMID: 26686945 DOI: 10.1016/j.jsbmb.2015.12.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 11/03/2015] [Accepted: 12/09/2015] [Indexed: 12/19/2022]
Abstract
Polymorphisms in genes encoding proteins involved in vitamin D metabolism and transport are recognised to influence vitamin D status. Syntheses of genetic association studies linking these variants to non-skeletal health outcomes are lacking. We therefore conducted a literature review to identify reports of statistically significant associations between single nucleotide polymorphisms (SNP) in 11 vitamin D pathway genes (DHCR7, CYP2R1, CYP3A4, CYP27A1, DBP, LRP2, CUB, CYP27B1, CYP24A1, VDR and RXRA) and non-bone health outcomes and circulating levels of 25-hydroxyvitamin D (25[OH]D and 1,25-dihydroxyvitamin D (1,25[OH]2D). A total of 120 genetic association studies reported positive associations, of which 44 investigated determinants of circulating 25(OH)D and/or 1,25(OH)2D concentrations, and 76 investigated determinants of non-skeletal health outcomes. Statistically significant associations were reported for a total of 55 SNP in the 11 genes investigated. There was limited overlap between genetic determinants of vitamin D status and those associated with non-skeletal health outcomes: polymorphisms in DBP, CYP2R1 and DHCR7 were the most frequent to be reported to associate with circulating concentrations of 25(OH)D, while polymorphisms in VDR were most commonly reported to associate with non-skeletal health outcomes, among which infectious and autoimmune diseases were the most represented.
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Affiliation(s)
- David A Jolliffe
- Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AB, UK.
| | - Robert T Walton
- Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AB, UK
| | - Christopher J Griffiths
- Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AB, UK
| | - Adrian R Martineau
- Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AB, UK.
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16
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Grzegorzewska AE, Świderska MK, Mostowska A, Warchoł W, Jagodziński PP. Polymorphisms of Vitamin D Signaling Pathway Genes and Calcium-Sensing Receptor Gene in respect to Survival of Hemodialysis Patients: A Prospective Observational Study. Int J Endocrinol 2016; 2016:2383216. [PMID: 27642296 PMCID: PMC5011523 DOI: 10.1155/2016/2383216] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/27/2016] [Accepted: 07/23/2016] [Indexed: 11/26/2022] Open
Abstract
We evaluated in the 7-year prospective study whether variants in vitamin D pathway genes and calcium-sensing receptor gene (CASR) are determinants of mortality in hemodialysis (HD) patients (n = 532). HRM analysis was used for GC rs2298849, GC rs1155563, RXRA rs10776909, RXRA rs10881578, and CASR rs7652589 genotyping. GC rs7041, RXRA rs749759, VDR rs2228570, and VDR rs1544410 were genotyped using PCR-RFLP analysis. The minor allele in GC rs2298849 was associated with all-cause mortality in univariate analysis (HR 1.330, 95% CI 1.046-1.692, P = 0.020). Bearers of the minor allele in GC rs2298849 demonstrated higher infection/neoplasm mortality than major allele homozygotes also in multivariate analysis (HR 2.116, 95% CI 1.096-4.087, P = 0.026). Cardiovascular mortality was associated with major homozygosity (CC) in VDR rs2228570 (HR 1.896, 95% CI 1.163-3.091, P = 0.010). CC genotype patients were more often dyslipidemic than TT genotype subjects (46.1% versus 31.9%, P = 0.047). Dyslipidemics showed higher frequency of rs1544410_rs2228570 haplotype AC than nondyslipidemics (26 versus 18%, P corr = 0.005), whereas TT genotype patients were at lower risk of dyslipidemia compared with CC/CT genotype patients (HR 0.59, 95% CI 0.37-0.96, P = 0.04). In conclusion, GC rs2298849 and VDR rs2228570 SNPs are associated with survival on HD. VDR-related cardiovascular mortality may occur due to connections of rs2228570 with dyslipidemia.
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Affiliation(s)
- Alicja E. Grzegorzewska
- Chair and Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznań, Poland
| | - Monika K. Świderska
- Student Nephrology Research Group, Chair and Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznań, Poland
| | - Adrianna Mostowska
- Chair and Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Święcickiego 6, 60-781 Poznań, Poland
| | - Wojciech Warchoł
- Chair and Department of Biophysics, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland
| | - Paweł P. Jagodziński
- Chair and Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Święcickiego 6, 60-781 Poznań, Poland
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Xu X, Mao J, Zhang M, Liu H, Li H, Lei H, Han L, Gao M. Vitamin D Deficiency in Uygurs and Kazaks Is Associated with Polymorphisms in CYP2R1 and DHCR7/NADSYN1 Genes. Med Sci Monit 2015; 21:1960-8. [PMID: 26149120 PMCID: PMC4501656 DOI: 10.12659/msm.894793] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Our study is aimed to 1) clarify the vitamin D status in Uygur and Kazak ethnic populations and 2) elucidate the relationship between 14 SNPs (in 5 vitamin D-related genes) and vitamin D deficiency in these 2 ethnic populations. Material/Methods A multistage-cluster sampling survey was carried out for residents with Uygur or Kazak ethnicity in Xinjiang, China. Anthropometric measurements were taken and the concentrations of 25OHD were measured. Fourteen common variants in VDR, GC, CYP2R1, CYP27B1, and DHCR7/NADSYN1 were genotyped by using multiple SNaPshot assay. Logistic regression analysis was performed to identify the possible risk factors for vitamin D deficiency, after adjusting for several environmental and biological factors. The pattern of SNP associations was distinct between Uygurs and Kazaks. Results Anthropometric measurements and the concentrations of 25OHD were obtained from 1873 participants (945 Uygur ethnic and 928 Kazak ethnic). The genotypes of 14 SNPs were measured for 300 Uygurs and 300 Kazaks. The median 25OHD concentration was as low as 10.4 ng/ml in Uygurs and 16.2ng/ml in Kazaks. In Uygurs, the prevalence of vitamin D deficiency, in-sufficiency, and sufficiency was 91.2%, 5.8%, and 3.0%, respectively. CYP2R1-rs10766197 was significantly associated with the presence of vitamin D deficiency in the Uygur ethnic population (P=0.019, OR=6.533, 95%C.I.: 361–31.357), while DHCR7/NADSYN1-rs12785878 was significantly associated with the presence of vitamin D deficiency in the Kazak ethnic population (P=0.011, OR=2.442, 95%C.I.: 1.224–4.873). Of 10 SNPs in VDR and GC genes, none was associated with vitamin D status in these 2 ethnic populations. Conclusions Vitamin D insufficiency is highly prevalent in Uygurs and Kazaks living in Xinjiang, China. Polymorphisms in CYP2R1-rs10766197 and DHCR7/NADSYN1-rs12785878 are associated with vitamin D deficiency in Uygur and Kazak ethnic populations.
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Affiliation(s)
- Xinjuan Xu
- Department of Hypertension, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Jiangfeng Mao
- Department of Endocrinology, Peking Union Medical College Hospital, Key Laboratory of Endocrinology, Ministry of Health, Beijing, China (mainland)
| | - Mingchen Zhang
- Department of Endocrinology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Haiming Liu
- Department of Hypertension, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Haixia Li
- Department of Hypertension, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Hong Lei
- Department of Hypertension, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Lu Han
- Department of Cardiology, Xinjiang Armed Police Hospital, Urumqi, Xinjiang, China (mainland)
| | - Min Gao
- Department of Hypertension, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
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18
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Association of vitamin D receptor gene polymorphisms with asthma risk: systematic review and updated meta-analysis of case-control studies. Lung 2014; 192:955-65. [PMID: 25267113 DOI: 10.1007/s00408-014-9648-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 09/22/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND The association between vitamin D receptor (VDR) polymorphisms and asthma risk has been inconsistently investigated, but published studies demonstrated conflicting results. The aim of the current study was to investigate the impact of TaqI, BsmI, ApaI, and FokI VDR polymorphisms on asthma disease by using a meta-analysis approach. METHODS Following the preferred reporting items for systematic reviews and meta-analyses guidelines, a systematic search and meta-analysis of the literature were conducted. Subgroup analyses were performed to detect potential sources of heterogeneity from selected study characteristics. RESULTS A total of 2,097 cases and 1,968 controls in eight case-control studies were included in meta-analyses. A significant association was found between TaqI polymorphisms and asthma risk [OR 1.488 (95 % CI 1.019-2.174); P = 0.040] in a codominant model. In the same way, BsmI was significantly associated with asthma risk [OR 2.017 (95 % CI 1.236-3.851); P = 0.017] in the codominant model. The homozygote BB BsmI genotype was found to confer significant asthma risk. FokI polymorphism was marginally associated with asthma risk [OR 1.187 (95 % CI 0.975-1.446); P = 0.088] in the codominant model. In contrast, no significant association was found between ApaI polymorphism and asthma risk. Subgroup analyses revealed that gender and age modified significantly the association between FokI polymorphisms and asthma risk (P = 0.035 and 0.013, respectively). Publication year and serum 25(OH) D level tended, marginally, to moderate the association between FokI polymorphism and asthma risk. CONCLUSION TaqI, BsmI, and FokI VDR polymorphisms contribute to asthma susceptibility. The association between FokI polymorphism and asthma risk is influenced by study characteristics.
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Grzegorzewska AE, Jodłowska E, Mostowska A, Sowińska A, Jagodziński PP. Single nucleotide polymorphisms of vitamin D binding protein, vitamin D receptor and retinoid X receptor alpha genes and response to hepatitis B vaccination in renal replacement therapy patients. Expert Rev Vaccines 2014; 13:1395-403. [DOI: 10.1586/14760584.2014.962521] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Li LH, Yin XY, Wu XH, Zhang L, Pan SY, Zheng ZJ, Wang JG. Serum 25(OH)D and vitamin D status in relation to VDR, GC and CYP2R1 variants in Chinese. Endocr J 2014; 61:133-41. [PMID: 24200978 DOI: 10.1507/endocrj.ej13-0369] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Previous studies have identified several common genetic variants in VDR, GC and CYP2R1 to be associated with circulating levels of 25-hydroxyvitamin D [25(OH)D] and vitamin D deficiency in Western populations. We aimed to investigate the associations of these variants with serum levels of 25(OH)D and vitamin D status in 1,199 Chinese. Nine common variants of VDR, GC and CYP2R1 were genotyped using multiple SNaPshot assay, and serum 25(OH)D was detected by radioimmunoassay. The prevalence of vitamin D deficiency (<50 nmol/L) was 38.8%, which is higher in women (46.2%) than in men (34.3%, P<0.0001). The risk alleles of three common variants of GC (rs7041, rs4588, and rs2282679) were significantly associated with a lower serum levels of 25(OH)D (-1.789 ≤β ≤-3.549, P ≤0.006), while common variants in VDR and CYP2R1 were not associated with serum levels of 25(OH)D after adjusted for covariates (P ≥0.30). None of the nine common variants were associated with the presence of vitamin D deficiency in multivariable adjusted logistic regression analyses (P ≥0.17). Haplotype-based analyses of GC-rs7041 and rs4588 showed that the haplotype Gc2-2 (rs7041 AA and rs4588 TT) had the lowest levels of 25(OH)D compared with other haplotypes that contained at least one copy of Gc1 allele (Ptrend <0.0001). Our results suggest that the common variants of GC are genetic determinants of serum 25(OH)D in Chinese.
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Affiliation(s)
- Li-Hua Li
- Centre for Epidemiological Studies and Clinical Trials, the Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Ismail MF, Elnady HG, Fouda EM. Genetic variants in vitamin D pathway in Egyptian asthmatic children: a pilot study. Hum Immunol 2013; 74:1659-64. [PMID: 24007655 DOI: 10.1016/j.humimm.2013.08.284] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 07/12/2013] [Accepted: 08/20/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Asthma is a genetically heterogeneous disease. Genetic variants in vitamin D pathway have been reported to be involved with asthma risk. The study aimed to test whether vitamin D binding protein (VDBP or GC-group component) and vitamin D receptor (VDR) gene polymorphisms were associated with asthma characteristics as well as vitamin D level in Egyptian children. DESIGN AND METHODS The study included 51 asthmatic children and 33 healthy controls of matched sex and age. All participants were genotyped for two SNPs; GC (rs2282679) and VDR (rs2228570) using TaqMan allele discrimination assays. RESULTS Genotype distribution of GC and VDR showed a significant association with asthma (P = 0.02, P = 0.002). Children carrying the risk "G" allele for GC SNP are 2.22 times more prone to develop asthma [OR = 2.22, 95% CI (1.18-4.2)] whereas those carrying the risk "F" allele for VDR SNP are nearly twice and half times susceptible for asthma development [OR = 2.68, 95% CI (1.36-5.28)] than healthy individuals. For the GC SNP, homozygous children "GG" exhibited significant difference in pulmonary functions (FEV1, FEV1/FVC), asthma severity and asthma control, IgE and vitamin D levels compared to pooled cases of GT and TT genotypes. For the VDR SNP, no significant association between VDR variants and the tested characteristics except for the pulmonary functions where the FEV1/FVC in asthmatic children with "FF " genotype differ significantly from those carrying "Ff"genotype. CONCLUSION GC and VDR variants may be implicated in asthma susceptibility; hence, further larger studies are still needed to extrapolate our findings to the general population.
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Affiliation(s)
- Manal F Ismail
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
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Maalmi H, Sassi FH, Berraies A, Ammar J, Hamzaoui K, Hamzaoui A. Association of vitamin D receptor gene polymorphisms with susceptibility to asthma in Tunisian children: A case control study. Hum Immunol 2012. [PMID: 23200756 DOI: 10.1016/j.humimm.2012.11.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Vitamin D and its nuclear receptor (VDR) are linked to asthma in a genetic and immunologic basis. Polymorphisms in the VDR gene may alter the actions of vitamin D and then influence the development and the severity of asthma. AIMS We aimed at elucidating the genetic association of VDR gene polymorphisms with susceptibility to asthma in Tunisian children and with serum vitamin D levels. METHODS The study included 155 patients recruited from Abderrahmen MAMI hospital in Tunisia and two hundred twenty five healthy individuals matched with patients in age and sex for comparison. VDR genotypes were determined by PCR-RFLP method using endonuclease FokI, BsmI, TaqI and ApaI and vitamin D was assessed with a radioimmunoassay kit. RESULTS The distribution of genotype frequencies differed significantly between asthmatics and controls (FokI: P=0.04; BsmI: P=0.006; TaqI: P=0.006). Haplotype analyses revealed a significant association between bAt and bat haplotypes and asthma (P=0.00076, P=0.016). When patients were stratified according to atopic status and stage of severity, no significant association was detected with VDR variants. No association was found between VDR SNPs and serum 25-hydroxyvitamin D levels. CONCLUSION Our study shows a relation between VDR gene polymorphisms and susceptibility to asthma in children.
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Affiliation(s)
- Haifa Maalmi
- Université de Tunis El Manar, Faculté de médecine de Tunis, 99/08-40 homeostasis and cell dysfunction unit research, 15 Rue Djebel Lakdar 1007, Tunis Tunisia.
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Genetic Influences on Circulating Vitamin D Level: A Review. CURRENT CARDIOVASCULAR RISK REPORTS 2012. [DOI: 10.1007/s12170-012-0278-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Santos BR, Mascarenhas LPG, Satler F, Boguszewski MCS, Spritzer PM. Vitamin D deficiency in girls from South Brazil: a cross-sectional study on prevalence and association with vitamin D receptor gene variants. BMC Pediatr 2012; 12:62. [PMID: 22681928 PMCID: PMC3464685 DOI: 10.1186/1471-2431-12-62] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 06/08/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Vitamin D deficiency has been associated with a multitude of disorders including diabetes, defective insulin secretion as well as rickets and poor bone health. Vitamin D is also a concern during childhood and adolescence and has been reported in girls from South Brazil. We determined the prevalence of vitamin D deficiency in girls from South Brazil and investigated whether the genotypic distribution of the BsmI, ApaI and TaqI polymorphisms of the VDR gene and their haplotypes were associated with vitamin D levels. METHODS Cross-sectional study including 234 apparently healthy girls aged 7 to 18 years. Height and weight were measured for calculation of body mass index (BMI) percentiles for age. Plasma levels of 25-hydroxyvitamin D [25(OH)D] were assessed. Participants were genotyped for ApaI (rs7975232), TaqI (rs731236), and BsmI (rs1544410) SNPs. RESULTS The median and interquartile range (25-75%) of BMI percentile was 62.0 (33.3 - 84.9). The frequency of overweight/obesity was 24.9%. Circulating levels of 25(OH)D (≥ 30 ng/mL) were adequate in 9.4%; insufficient in 54.3% (20-29 ng/mL); and deficient in 36.3% (< 20 ng/mL). Genotype frequencies were GG = 47.0%, GA = 41.5%, and AA = 11.5% for BsmI; GG = 16.7%, GT = 52.6%, and TT = 30.8% for ApaI; TT = 46.2%, TC = 44.9% and CC = 9.0% for TaqI. Genotypes with no gene variance (ancestral wild genotype) of BsmI (GG vs. GA + AA, two-tailed Student's t-test p < 0.001), ApaI (GG vs. GT + TT, two-tailed Student's t-test p = 0.031) and TaqI (TT vs. TC + CC, two-tailed Student's t-test p = 0.005) SNPs and the GGT haplotype (two-tailed Student's t-test p = 0.036) were significantly associated with lower 25(OH)D levels. CONCLUSIONS 25-hydroxyvitamin D deficiency and insufficiency were highly prevalent in this sample. The BsmI, ApaI and TaqI wild variants of the VDR gene, as well as the GGT haplotype, were associated with lower vitamin D levels, suggesting that VDR gene polymorphisms could be linked to higher susceptibility to vitamin D deficiency in a sub-population of children and adolescents.
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Affiliation(s)
- Betânia R Santos
- Gynecologic Endocrinology Unit, Division of Endocrinology, Hospital de Clínicas de Porto Alegre (HCPA), and Laboratory of Molecular Endocrinology, Department of Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Abstract
PURPOSE OF REVIEW The role of vitamin D beyond its importance for bone health is under much debate. In this article, we review recent evidence for genetic influences on 25-hydroxyvitamin D [25(OH)D] and discuss the uses of this information and its importance for public health. RECENT FINDINGS Findings from large-scale genome-wide association meta-analyses on 25(OH)D confirmed the associations for loci nearby genes encoding vitamin D binding protein (GC, group component), 7-dehydrochlesterol reductase (DHCR7), 25-hydroxylase (CYP2R1) and 24-hydroxylase (CYP24A1), all influencing key sites for vitamin D metabolism. Findings from candidate gene studies have been inconsistent, with some implicating an association with 25(OH)D for loci near the gene encoding the hormonal vitamin D activation enzyme (CYP27B1). SUMMARY The amount of variation in 25(OH)D explained by genetic determinants is small compared with environmental exposures. Information on genetic variants affecting 25(OH)D can be used as tools for Mendelian randomization analyses on vitamin D, and they provide some potential for the use as drug targets.
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Milovanovic M, Heine G, Hallatschek W, Opitz B, Radbruch A, Worm M. Vitamin D receptor binds to the ε germline gene promoter and exhibits transrepressive activity. J Allergy Clin Immunol 2010; 126:1016-23, 1023.e1-4. [DOI: 10.1016/j.jaci.2010.08.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 08/03/2010] [Accepted: 08/10/2010] [Indexed: 11/25/2022]
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