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Ruiz CR, Cenarruzabeitia NV, Villanueva MM, Hernández Martínez AM, Noguera Velasco JA. La osteocalcina se asocia con la densidad mineral ósea y los polimorfismos del gen VDR en la diabetes tipo 1 y 2. ADVANCES IN LABORATORY MEDICINE 2024; 5:56-65. [PMID: 38634084 PMCID: PMC11019893 DOI: 10.1515/almed-2023-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/26/2023] [Indexed: 04/19/2024]
Abstract
Resumen
Objetivos
El metabolismo óseo se encuentra alterado en la diabetes mellitus (DM). El objetivo de este estudio es evaluar la relación entre los marcadores de remodelado óseo (MRO), los polimorfismos en el gen receptor de la vitamina D (VDR) y la densidad mineral ósea (DMO) en la DM tipo 1 (T1D) y tipo 2 (T2D).
Métodos
Se incluyó a 165 pacientes (53 T1D y 112 T2D). La DMO se midió mediante absorciometría de rayos X de energía dual (DEXA). Se realizó un análisis de la osteocalcina (OC) en plasma, beta-CrossLaps (β-CTX), propéptido aminoterminal del procolágeno tipo 1 (P1NP) y los polimorfismos en el gen VDR.
Resultados
Se incluyó a 53 pacientes con T1D (41 años (31–48)) y 112 con T2D (60 años [51–66]). No se observaron diferencias estadísticamente significativas en relación a la DMO. Los pacientes con T1D presentaron niveles superiores de OC (p<0,001) y P1NP (p<0,001). Las áreas bajo la curva para la predicción de patología ósea para la OC fueron 0,732 (p=0,038) en T1D y 0,697 (p=0,007) en T2D. Se observó una relación estadísticamente significativa entre el alelo A de BsmI (p=0,03), el alelo A de ApaI (p=0,04) y el alelo C de Taql (p=0,046) y una menor DMO. Así mismo, se encontró una correlación significativa entre los niveles elevados de OC y el alelo G de BsmI (p=0,044), el alelo C de ApaI (p=0,011), el alelo T de Taql (p=0,006) y el alelo C de FokI (p=0,004).
Conclusiones
El elevado valor predictivo negativo del punto de corte de la OC indica que la OC podría ser útil a la hora de descartar el riesgo de pérdida ósea, lo que permitiría diseñar un tratamiento personalizado para prevenir dicha patología.
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Affiliation(s)
- Carla Ramírez Ruiz
- Departamento de Bioquímica Clínica, Clínica Universidad de Navarra, Madrid, España
| | | | - Miriam Martínez Villanueva
- Departamento de Bioquímica Clínica, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, España
| | - Antonio M Hernández Martínez
- Departamento de Nutrición y Endocrinología, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, España
| | - José A Noguera Velasco
- Departamento de Bioquímica Clínica, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, España
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Ramírez Ruiz C, Varo Cenarruzabeitia N, Martínez Villanueva M, Hernández Martínez AM, Noguera Velasco JA. Osteocalcin associates with bone mineral density and VDR gene polymorphisms in type 1 and type 2 diabetes. ADVANCES IN LABORATORY MEDICINE 2024; 5:46-55. [PMID: 38634086 PMCID: PMC11019880 DOI: 10.1515/almed-2023-0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/26/2023] [Indexed: 04/19/2024]
Abstract
Objectives Bone metabolism is impaired in diabetes mellitus (DM). Our objective is to evaluate the association of bone turnover markers (BTM) and vitamin D receptor (VDR) gene polymorphisms with bone mineral density (BMD) in DM type 1 (T1D) and DM type 2 (T2D). Methods A total of 165 patients (53 T1D and 112 T2D) were enrolled. BMD was measured by dual-energy X-ray absorptiometry (DEXA). Plasma osteocalcin (OC), beta-CrossLaps (β-CTX) and N-amino terminal propeptide of type I collagen (P1NP) and VDR gene polymorphisms were evaluated. Results Participants were 53 T1D (41 years [31-48]) and 112 T2D (60 years [51-66]). BMD were not statistically different between the groups. OC (p<0.001) and P1NP levels (p<0.001) were higher in patients with T1D. The areas under the curve for the prediction of bone pathology were 0.732 (p=0.038) for OC in T1D and 0.697 (p=0.007) in T2D. A significant association was found between lower lumbar BMD and the A allele of BsmI (p=0.03), the A allele of ApaI (p=0.04) and the allele C of the Taql (p=0.046). Also, a significant correlation was found with higher OC levels and the G allele of BsmI (p=0.044), C allele of ApaI (p=0.011), T allele of Taql (p=0.006) and with C allele of FokI (p=0.004). Conclusions The high negative predictive value of the cut-off point for OC suggests that could be useful in excluding the risk suffering bone loss, allowing offering a personalized clinical approach to prevent this pathology.
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Affiliation(s)
- Carla Ramírez Ruiz
- Department of Clinical Biochemistry, Clínica Universidad de Navarra, Madrid, Spain
- Servicio de Bioquímica, Clínica Universidad de Navarra – Madrid, Madrid, Spain
| | | | - Miriam Martínez Villanueva
- Department of Clinical Biochemistry, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
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Nóvoa-Medina Y, Barreiro-Bautista M, Perdomo-Quinteiro M, González-Martín JM, Quinteiro-González S, Domínguez Á, Cabrera M, López S, Pavlovic S, Wägner AM. 25OHVitamin D Levels in a Canarian Pediatric Population with and without Type 1 Diabetes: The Role of Acidosis. Nutrients 2023; 15:3067. [PMID: 37447392 DOI: 10.3390/nu15133067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/30/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
The role of Vitamin D in the development of type 1 diabetes (T1D) is controversial. The Canary Islands have the highest incidence of childhood-onset T1D in Spain and one of the highest in Europe. We aimed to evaluate 25OHVitamin D concentrations in a Canarian pediatric population, to assess the existence of seasonal variation, to study their association with T1D, and to evaluate the role of acidosis in its levels. In a retrospective, case-control study, we obtained data from 146 T1D patients (<15 years of age) and 346 control children; 25OHVitamin D concentrations were assessed in serum by automatic ChemiLuminescence ImmunoAssay technology. We found significantly higher 25OHVitamin D levels in the summer and autumn months and an inverse correlation between T1D and age; 25OHVitamin D sufficiency was similar in both groups (44.5% vs. 45.1%), with significant differences in the percentage of patients presenting vitamin D deficiency (11.6% (T1D) vs. 16.4% (controls)). When stratified according to the presence of ketoacidosis at sampling, only patients with acidosis showed lower 25OHVitamin D concentrations than controls. Despite its subtropical geographic location, Vitamin D deficiency is frequent in children in Gran Canaria, and 25OHVitamin D concentrations show seasonal variation. After adjusting for acidosis, no differences were found between children with and without T1D.
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Affiliation(s)
- Yeray Nóvoa-Medina
- Unidad de Endocrinología Pediátrica, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
- Asociación Canaria para la Investigación Pediátrica (ACIP Canarias), 35004 Las Palmas de Gran Canaria, Spain
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias, Universidad de Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain
| | - Marta Barreiro-Bautista
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias, Universidad de Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain
| | - Marta Perdomo-Quinteiro
- Facultad de Medicina, Universidad de Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain
| | - Jesús María González-Martín
- Unidad de Investigación, Hospital Universitario de Gran Canaria Dr. Negrín, 35002 Las Palmas de Gran Canaria, Spain
| | - Sofía Quinteiro-González
- Unidad de Endocrinología Pediátrica, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
| | - Ángela Domínguez
- Unidad de Endocrinología Pediátrica, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
| | - María Cabrera
- Unidad de Endocrinología Pediátrica, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
| | - Sara López
- Unidad de Endocrinología Pediátrica, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
| | - Svetlana Pavlovic
- Servicio de Pediatría, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
| | - Ana M Wägner
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias, Universidad de Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain
- Servicio de Endocrinología y Nutrición, Complejo Hospitalario Universitario Insular Materno Infantil, 35016 Las Palmas de Gran Canaria, Spain
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Zhai N, Bidares R, Makoui MH, Aslani S, Mohammadi P, Razi B, Imani D, Yazdchi M, Mikaeili H. Vitamin D receptor gene polymorphisms and the risk of the type 1 diabetes: a meta-regression and updated meta-analysis. BMC Endocr Disord 2020; 20:121. [PMID: 32771009 PMCID: PMC7414991 DOI: 10.1186/s12902-020-00575-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 06/15/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The association between the polymorphisms in the vitamin D receptor (VDR) gene and the risk of type 1 diabetes mellitus (T1DM) has been evaluated in several studies. However, the findings were inconclusive. Thus, we conducted a meta-analysis to comprehensively evaluate the effect of VDR gene polymorphisms on the risk of T1DM. METHODS All relevant studies reporting the association between VDR gene polymorphisms and susceptibility to T1DM published up to May 2020 were identified by comprehensive systematic database search in ISI Web of Science, Scopus, and PubMed/MEDLINE. Strength of association were assessed by calculating of pooled odds ratios (ORs) and 95% confidence intervals (CIs). The methodological quality of each study was assessed according to the Newcastle-Ottawa Scale. To find the potential sources of heterogeneity, meta-regression and subgroup analysis were also performed. RESULTS A total of 39 case-control studies were included in this meta-analysis. The results of overall population rejected any significant association between VDR gene polymorphisms and T1DM risk. However, the pooled results of subgroup analysis revealed significant negative and positive associations between FokI and BsmI polymorphisms and T1DM in Africans and Americans, respectively. CONCLUSIONS This meta-analysis suggested a significant association between VDR gene polymorphism and T1DM susceptibility in ethnic-specific analysis.
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Affiliation(s)
- Na Zhai
- Endocrine 1st Department, Baoding No.1 Central Hospital, Baoding, 071000, China.
| | - Ramtin Bidares
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Masoud Hassanzadeh Makoui
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Payam Mohammadi
- Department of Clinical Biochemistry, School of Medicine, Tarbiat Modares University, Tehran, Iran
| | - Bahman Razi
- Department of Hematology, School of Medicine, Tarbiat Modares University, Tehran, Iran
| | - Danyal Imani
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Yazdchi
- Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Haleh Mikaeili
- Tuberculosis and lung Diseases Research Center, Tabriz University of medical sciences, Tabriz, Iran.
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Rasoul MA, Haider MZ, Al-Mahdi M, Al-Kandari H, Dhaunsi GS. Relationship of four vitamin D receptor gene polymorphisms with type 1 diabetes mellitus susceptibility in Kuwaiti children. BMC Pediatr 2019; 19:71. [PMID: 30845908 PMCID: PMC6404350 DOI: 10.1186/s12887-019-1448-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/01/2019] [Indexed: 12/17/2022] Open
Abstract
Background The incidence of type 1 diabetes mellitus (T1DM) in Kuwait is amongst the highest in the world. Vitamin D is considered to be involved in immune modulation and its deficiency contribute to autoimmune destruction of insulin producing beta cells in T1DM patients. Vitamin D has been shown to exert its effects via a nuclear vitamin D receptor (VDR) and therefore, VDR gene may be considered a candidate for T1DM susceptibility. Methods The genotypes of four VDR gene polymorphisms were determined in 253 Kuwaiti Arab T1DM patients and 214 healthy controls by PCR-RFLP analysis. Serum concentrations of three autoantibodies i.e. ICA (Islet cell autoantibody), GADA (Glutamic acid decarboxylase) and INS (Insulin autoantibody) were determined by radio-immunoassays. Results Statistically significant differences were detected between the genotypes of two VDR gene polymorphisms (FokI, C > T, rs10735810 and TaqI, C > T, rs731236) between T1DM patients and controls (P < 0.0001). In both, the frequency of variant alleles was considerably high in T1DM than in the controls. In contrast, the VDR gene ApaI (G > T, rs7975232) and BsmI (A > G, rs1544410) polymorphisms did not show association with T1DM. The homozygous variant genotypes of FokI, ApaI and TaqI polymorphisms show significant differences between various age-of-onset subgroups while no such association was detected in the case of BsmI polymorphism. Significant differences were also noted between heterozygous genotypes of all four polymorphisms especially between 4-6y and > 6y age-of-onset subgroups of T1DM patients. Three autoantibodies, ICA (Islet cell), GADA (glutamate decarboxylase) and INS (insulin) were positively associated to, varying degrees, with T1DM in Kuwaiti Arabs harboring different VDR gene polymorphism genotypes. Conclusions Our results demonstrate a significant effect of two VDR gene polymorphisms (FokI and TaqI) and three autoantibodies on genetic susceptibility of T1DM in Kuwaiti Arabs along with other factors.
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Affiliation(s)
- Majedah A Rasoul
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Mohammad Z Haider
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.
| | - Maria Al-Mahdi
- Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Hessa Al-Kandari
- Department of Pediatrics, Farwania Hospital, Farwania, Kuwait.,Family Medicine and Pediatric Unit, Dasman Diabetes Institute, Dasman, Kuwait
| | - Gursev S Dhaunsi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Medical Laboratories, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait
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Chakhtoura M, Azar ST. The role of vitamin d deficiency in the incidence, progression, and complications of type 1 diabetes mellitus. Int J Endocrinol 2013; 2013:148673. [PMID: 23573085 PMCID: PMC3610375 DOI: 10.1155/2013/148673] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 01/23/2013] [Accepted: 01/29/2013] [Indexed: 12/17/2022] Open
Abstract
The "nonclassic" role of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) has been recently widely recognized. In type 1 diabetes mellitus (T1D), it plays an immunomodulatory role through the vitamin D receptor (VDR) present on pancreatic and immune cells. Specific VDR allelic variants have been associated with T1D in many countries. Furthermore, vitamin D deficiency has been prevalent in T1D, and the seasonal and latitude variability in the incidence of T1D can be partly explained by the related variability in vitamin D level. In fact, retrospective studies of vitamin D supplementation during pregnancy or infancy showed a lower incidence of T1D. We will review the different mechanisms of the vitamin D protective effect against insulitis and present the available data on the role of vitamin D deficiency in the control, progression, and complications of T1D.
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Sahin SB, Cetinkalp S, Erdogan M, Yilmaz C, Berdeli A. Fas, Fas Ligand, and vitamin D Receptor FokI gene polymorphisms in patients with type 1 diabetes mellitus in the Aegean region of Turkey. Genet Test Mol Biomarkers 2012; 16:1179-83. [PMID: 22946667 DOI: 10.1089/gtmb.2012.0173] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE Several gene polymorphisms have been reported to be associated with the risk of developing type 1 diabetes. Among them, the human leukocyte antigen locus is the strongest genetic determinant. To identify additional genetic markers, we aimed to evaluate the relationship between the Fas, Fas ligand (FasL), and vitamin D receptor (VDR) FokI gene polymorphisms and the susceptibility to type 1 diabetes in the Aegean region of Turkey. MATERIALS AND METHODS Eighty-five patients with type 1 diabetes and 80 healthy controls were included in this study. The Fas -670A/G, FasL -843C/T, and VDR FokI gene polymorphisms were evaluated using the polymerase chain reaction-restriction fragment length polymorphism method. RESULTS The evaluation of the Fas genotype and the gene allele frequency did not show statistically significant differences between the patient and control group. Distribution of the FasL genotype differed significantly between patients and controls. The distribution of the VDR FokI genotype and allele frequencies differed significantly between the patients and controls. Individuals with type 1 diabetes presented less commonly with the FokI f allele. CONCLUSIONS Our findings suggest that the FasL -843C/T and VDR FokI gene polymorphisms are associated with type 1 diabetes in the Agean region of Turkey; however, the Fas -670A/G gene polymorphism is not.
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Affiliation(s)
- Serap Baydur Sahin
- Department of Endocrinology and Metabolism Disease, Ege University Medical School, Bornova, Izmir, Turkey.
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Wang Q, Xi B, Reilly KH, Liu M, Fu M. Quantitative assessment of the associations between four polymorphisms (FokI, ApaI, BsmI, TaqI) of vitamin D receptor gene and risk of diabetes mellitus. Mol Biol Rep 2012; 39:9405-14. [PMID: 22814767 DOI: 10.1007/s11033-012-1805-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Accepted: 06/09/2012] [Indexed: 02/06/2023]
Abstract
The vitamin D receptor (VDR) gene polymorphisms have been suggested to be involved in the development of diabetes mellitus, including type 1 diabetes (T1DM) and type 2 diabetes (T2DM). However, the results have been inconsistent. In this study, we performed a meta-analysis to investigate the associations. Literature was retrieved from PubMed, ISI Web of Science and Chinese databases. Pooled odds ratios (ORs) with 95 % confidence intervals (CIs) were calculated using a random or fixed effect model. 79 studies (FokI: 22 studies; BsmI: 25 studies; ApaI: 17 studies; TaqI: 15 studies) on T1DM and 44 studies (FokI: 10 studies; BsmI: 10 studies; ApaI: 14 studies; TaqI: 10 studies) on T2DM were included. The results indicated that BsmI polymorphism was associated with an increased risk of T1DM (B vs. b: OR 1.31, 95 % CI 1.10-1.55, P = 0.002), especially in East Asians (B vs. b: OR 2.57, 95 % CI: 1.55-4.24, P < 0.001); FokI polymorphism was associated with an increased risk of T2DM (f vs. F: OR 1.30, 95 % CI: 1.17-1.45, P < 0.001), especially in East Asians (f vs. F: OR 1.36, 95 % CI: 1.21-1.54, P < 0.001). However, no significant association was observed between ApaI or TaqI polymorphism and diabetes risk with the exception of significant association between ApaI polymorphism and T1DM risk in East Asians. Thus, the authors found BsmI polymorphism in the VDR gene may increase the risk of T1DM in East Asians and the FokI polymorphism may increase the risk of T2DM in East Asians.
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Affiliation(s)
- Qijuan Wang
- Department of Maternal and Child Health Care, School of Public Health, Shandong University, No 44 Wenhuaxi Road, Jinan 250012, China
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Lin WY, Lee WC. Improving power of genome-wide association studies with weighted false discovery rate control and prioritized subset analysis. PLoS One 2012; 7:e33716. [PMID: 22496761 PMCID: PMC3322139 DOI: 10.1371/journal.pone.0033716] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 02/16/2012] [Indexed: 02/06/2023] Open
Abstract
The issue of large-scale testing has caught much attention with the advent of high-throughput technologies. In genomic studies, researchers are often confronted with a large number of tests. To make simultaneous inference for the many tests, the false discovery rate (FDR) control provides a practical balance between the number of true positives and the number of false positives. However, when few hypotheses are truly non-null, controlling the FDR may not provide additional advantages over controlling the family-wise error rate (e.g., the Bonferroni correction). To facilitate discoveries from a study, weighting tests according to prior information is a promising strategy. A 'weighted FDR control' (WEI) and a 'prioritized subset analysis' (PSA) have caught much attention. In this work, we compare the two weighting schemes with systematic simulation studies and demonstrate their use with a genome-wide association study (GWAS) on type 1 diabetes provided by the Wellcome Trust Case Control Consortium. The PSA and the WEI both can increase power when the prior is informative. With accurate and precise prioritization, the PSA can especially create substantial power improvements over the commonly-used whole-genome single-step FDR adjustment (i.e., the traditional un-weighted FDR control). When the prior is uninformative (true disease susceptibility regions are not prioritized), the power loss of the PSA and the WEI is almost negligible. However, a caution is that the overall FDR of the PSA can be slightly inflated if the prioritization is not accurate and precise. Our study highlights the merits of using information from mounting genetic studies, and provides insights to choose an appropriate weighting scheme to FDR control on GWAS.
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Affiliation(s)
- Wan-Yu Lin
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.
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Aslani S, Hossein-Nezhad A, Mirzaei K, Maghbooli Z, Afshar AN, Karimi F. VDR FokI polymorphism and its potential role in the pathogenesis of gestational diabetes mellitus and its complications. Gynecol Endocrinol 2011; 27:1055-60. [PMID: 21663527 DOI: 10.3109/09513590.2011.569786] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The aim of the study is evaluating the associations of FokI vitamin D receptor (VDR) gene polymorphisms with gestational diabetes mellitus (GDM), and its relations with postpartum metabolic syndrome. In a cohort study, 303 women referred to outpatient clinic of Shariati Hospital. The VDR FokI genotypes were determined. All subjects were followed 6?12 weeks after delivery. The frequencies of Ff, FF, and ff genotypes were 30.4% (49), 63.4% (102), and 6.2% (10), respectively, in healthy pregnancies and 34.5% (49), 54.9% (78), and 10.6% (15), respectively, in GDM patients. The ff genotype was more common in GDM patients. Healthy individuals had higher frequency of F allele, suggesting that F allele may have a role in decreased incidence of GDM. Concerning the GDM risk factors, f allele had significant association with prepregnancy obesity and family history of diabetes. In postpartum follow-up, women who developed metabolic syndrome were significantly older with higher prepregnancy body mass index, had more family history of diabetes, and also their ff genotype was two fold more frequent. Our results indicate a meaningful association between FokI VDR genotypes and an increase risk of GDM in Iranian population as well as its effects on postpartum metabolic syndrome.
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Affiliation(s)
- Shilan Aslani
- Endocrinology & Metabolism Research Centre, 5th floor, Shariati Hospital, North Kargar St.Tehran, POBox 14114, Iran
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Jeannesson E, Siest G, Zaiou M, Berrahmoune H, Masson C, Visvikis-Siest S. Genetic profiling of human cell lines used as in vitro model to study cardiovascular pathophysiology and pharmacotoxicology. Cell Biol Toxicol 2008; 25:561-71. [DOI: 10.1007/s10565-008-9112-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2007] [Accepted: 11/12/2008] [Indexed: 12/19/2022]
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12
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López T, García D, Angel B, Carrasco E, Codner E, Ugarte F, Pérez-Bravo F. [Association between Fok I vitamin D receptor (VDR) gene polymorphism and plasmatic concentrations of transforming growth factor-beta1 and interferon gamma in type 1 diabetes mellitus]. Med Clin (Barc) 2008; 130:81-4. [PMID: 18261376 DOI: 10.1157/13115350] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND OBJECTIVE In order to assess whether Fok I vitamin D receptor gene (VDR) polymorphism is involved in the genetic susceptibility of type 1 diabetes, a case-control study was conducted and VDR genotypes were related to serum concentrations of 25(OH) vitamin D and cytokines transforming growth factor beta1 (TGF-beta1) and interferon gamma (INF-gamma). PATIENTS AND METHOD 151 incident cases of type 1 diabetes and 182 non related healthy controls from Santiago were studied for VDR polymorphisms in peripheral blood DNA. Exon 2 (Fok I) segments were amplified by polimerase chain reaction and analyzed by means of restriction fragment length polymorphism to determine each corresponding genotype. Differences for allele, genotype and serological markers as 25(OH) vitamin D, TGF-beta1 and INF-gamma levels distribution between patients and controls were analyzed. RESULTS Fok I polymorphism distribution analysis showed no differences between patients and controls. Among diabetics, higher levels of TGF-beta1 (median, 282.6 pg/ml; range, 131.8-3,031.4) were observed compared with healthy children (median, 232.2 pg/ml; range, 135.7-506.5) (p < 0.0038). Similar results were observed for INF-gamma concentrations (median, 121.1 pg/ml, and range, 5.3-228.8, in cases, and median, 89.6 pg/ml, and range, 10.9-117.2 in controls) (p < 0.0004). The diabetic carriers of the ff genotype showed low levels of 25(OH) vitamin D compared with the carriers of the F allele: mean (standard deviation), 23.1 (5.9) versus 27.9 (10.3) ng/ml (p < 0.03). A similar result was observed for TGF-beta1 concentrations in diabetic carriers of ff genotype and patients carriers of the F allele (298.5 versus 276.6; p < 0.05). CONCLUSIONS Fok I polymorphism of VDR could have a marginal role in the immunologic disturbance in type 1 diabetes.
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Affiliation(s)
- Tatiana López
- Laboratorio de Epidemiología Nutricional y Genética, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
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Zemunik T, Skrabic V, Boraska V, Diklic D, Terzic IM, Capkun V, Peruzovic M, Terzic J. FokI polymorphism, vitamin D receptor, and interleukin-1 receptor haplotypes are associated with type 1 diabetes in the Dalmatian population. J Mol Diagn 2006; 7:600-4. [PMID: 16258158 PMCID: PMC1867554 DOI: 10.1016/s1525-1578(10)60593-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Vitamin D and interleukin (IL)-1 have been suggested to function in the pathogenesis of type 1 diabetes mellitus (T1DM). Therefore, we examined the influence of gene polymorphisms in vitamin D receptor (VDR) and interleukin-1 receptor type I (IL-1-R1) on susceptibility to T1DM in the Dalmatian population of South Croatia. We genotyped 134 children with T1DM and 132 controls; for FokI polymorphism studies, we extended the control group to an additional 102 patients. The VDR gene polymorphism FokI displayed unequal distribution (P = 0.0049) between T1DM and control groups, with the ff genotype occurring more frequently in T1DM individuals whereas the VDR gene polymorphism Tru9I did not differ in frequency between studied groups. All tested polymorphisms of the IL-1-R1 gene [PstI, HinfI, and AluI (promoter region) and PstI-e (exon 1B region)] displayed no differences between cases and controls. Haplotype analysis of the VDR gene (FokI, BsmI, ApaI, TaqI, Tru9I) and of the IL-1-R1 gene (PstI, HinfI, AluI, PstI-e) found haplotypes VDR FbATu (P = 0.0388) and IL-1-R1 phap' (P = 0.0419) to be more frequent in T1DM patients whereas the BatU haplotype occurred more often in controls (P = 0.0064). Our findings indicate that the VDR FokI polymorphism and several VDR and IL-1-R1 haplotypes are associated with susceptibility to T1DM in the Dalmatian population.
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Affiliation(s)
- Tatijana Zemunik
- University of Split, School of Medicine, Department of Biology, Soltanska 2, 21000 Split, Croatia
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Ramos-Lopez E, Kurylowicz A, Bednarczuk T, Paunkovic J, Seidl C, Badenhoop K. Vitamin D receptor polymorphisms are associated with Graves' disease in German and Polish but not in Serbian patients. Thyroid 2005; 15:1125-30. [PMID: 16279845 DOI: 10.1089/thy.2005.15.1125] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Diverse genes are candidates for susceptibility to Graves' disease, including the vitamin D receptor (VDR), which regulates the transcription of target genes in response to the active metabolite 1,25(OH)(2)D(3). We analyzed four polymorphisms of the VDR gene (ApaI, TaqI, BsmI, and FokI) in patients with Graves' disease (n = 789) and healthy controls (n = 823) from three European populations (German, Polish, and Serbian). The VDR ApaI (rs7975232) and TaqI (rs731236) polymorphisms showed no significant difference in any population. The BsmI (rs1544410) variant "b" was associated with Graves' disease in the Polish population (p = 0.0070). The FokI (rs10735810) variant "f " was found to be associated with Graves' disease in Germans and "F" in Polish patients (p = 0.0024 and 0.0049, respectively). Construction of haplotypes for TaqI, ApaI, and BsmI showed the haplotype "Tab" to be the most frequent in the German and Polish population as well as in the Serbian patients, while "tAB" in Serbian controls. Our results show an association of VDR gene polymorphisms in the German and Polish population but not in the Serbian. Furthermore, the VDR polymorphisms are differentially distributed in the three populations. Therefore, VDR polymorphisms analysis needs to be stratified according to the population background.
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Affiliation(s)
- Elizabeth Ramos-Lopez
- Department of Internal Medicine I, Division of Endocrinology, University Hospital Frankfurt, Frankfurt am Main, Germany
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