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Ege F, Sarıkaya S. FokI polymorphism in the vitamin D receptor gene in patients with hip osteoarthritis: A case-control study. Turk J Phys Med Rehabil 2022; 68:532-7. [PMID: 36589362 DOI: 10.5606/tftrd.2022.9821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 02/15/2022] [Indexed: 12/12/2022] Open
Abstract
Objectives This study aimed to examine whether there is an association between hip osteoarthritis and vitamin D receptor gene FokI polymorphisms. Patients and methods In this case-control study, a total of 162 volunteers (43 males, 119 females; mean age: 62.4±9.3; range, 50 to 80 years) were included between March 2011 and March 2012. The patient group included 80 individuals with a diagnosis of coxarthrosis. Eighty-two individuals with normal hip, low back, and sacroiliac joint examination were included in the control group. The American College of Rheumatology hip osteoarthritis classification criteria were used in the diagnosis of coxarthrosis. Analysis of FokI polymorphisms was performed with restriction fragment length polymorphisms. Results When the genotype and allele distributions of vitamin D receptor FokI polymorphisms were examined, no statistical difference was found in both groups. Conclusion No significant association between the hip osteoarthritis and FokI polymorphisms could be obtained.
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Ou Y, Jiang X, Guan H. Vitamin D Receptor Gene Polymorphisms and Risk of Atopic Dermatitis in Chinese Han Population. Int J Gen Med 2021; 14:5301-5312. [PMID: 34526805 PMCID: PMC8435479 DOI: 10.2147/ijgm.s326477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/17/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Studies investigated the associations between four Vitamin D receptor (VDR) common variations and interactions of gene-environment factors and atopic dermatitis (AD) in Chinese population are few. METHODS In this case-control study, 400 AD patients and 400 controls were genotyped for the FokI, TaqI, BsmI and ApalI variations of VDR genes by restriction fragment length polymorphism analysis. The associations between VDR genes and AD were assessed by univariate and multivariate logistic regression. The interactions between VDR genes and some risk factors were also explored using cross-over analysis. The corresponding odds ratio (ORs) and 95% confidence intervals (CI) were also calculated. RESULTS The FoKI rs2228570 polymorphism was significantly associated with an increased risk of atopic dermatitis in the co-dominant model (OR=2.93, 95% CI: 1.78-4.82. P=0.000), recessive model (OR=2.67, 95% CI: 1.68-4.26, P=0.000) and dominant model (OR=1.38, 95% CI: 1.04-1.84, P=0.028), and allele model. No significant associations were found among TaqI, BsmI and ApalI polymorphism and AD. The C-A-T-C and C-G-T-T haplotypes significantly increased the risk of atopic dermatitis. For rs2228570, the increased effects were more evident in the subgroups of age ≤8-month, cow milk and mixed, and keeping pet. Interactions between rs2228570 gene polymorphism and family history, age >8, and keeping pet increased the AD risk. The rs2228570 C allele decreased the relative mRNA expression. CONCLUSION The FokI rs2228570 C allele of VDR gene could be a risk candidate gene for AD. Interactions between FokI polymorphism and family history and some behaviors may increase the risk of AD.
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Affiliation(s)
- Yunchao Ou
- Department of Dermatology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430000, People’s Republic of China
| | - Xiaoli Jiang
- Department of Dermatology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430000, People’s Republic of China
| | - Huiwen Guan
- Department of Dermatology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430000, People’s Republic of China
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Guesmi A, Zouaoui M, Haouat E, Oueslati S, Dabboussi M, Kassmi C, Mahjoub R, Kammoun I, Bibi A. Association of Vitamin D Receptor Gene Polymorphisms With the Evolution of MODY Diabetes: Study in Tunisian Patients. Biol Res Nurs 2021; 23:608-618. [PMID: 33827288 DOI: 10.1177/10998004211004770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Vitamin D (VD) cannot be considered as a true vitamin, but rather as a hormone, which exerts its action via a vitamin D receptor (VDR). Many genes have been shown to be involved in the evolution of diabetes in various populations, such as the vitamin D receptor gene. The aim of our study was to investigate if BsmI, TaqI, ApaI, FokI, and Tru9I, polymorphisms of VDR gene have an impact on MODY diabetes and its clinical aspects in a Tunisian population. A total of 95 patients and 153 controls were genotyped using PCR-RFLP. The comparison of the allelic and genotypic frequencies of the five polymorphisms between MODY subjects and control groups revealed the association of MODY diabetes with TaqI, Tru9I and BsmI polymorphisms and no significant differences were observed in the distributions for the ApaI and FokI polymorphisms. After stratification with biochemical and clinical parameters and TaqI, Tru9I and BsmI polymorphisms, we found an association between the three SNPs and different parameters such as age of diagnosis, therapy, hsCRP and HDL-C levels. Our results revealed that TaqI, Tru9I and BsmI polymorphisms may be more related to the progression of MODY diabetes. The possible role of vitamin D in the pathogenesis of MODY is far from being completely understood. Further knowledge on this issue may identify new candidate targets in the treatment and prevention of the disease. Our findings suggest that the TaqI, Tru9I and BsmI polymorphisms may be more related to the progression of MODY diabetes.
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Affiliation(s)
- Amal Guesmi
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Manel Zouaoui
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Emna Haouat
- Department of Endocrinology B, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Sabrine Oueslati
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Malek Dabboussi
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Chaima Kassmi
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Sciences of Bizerte, University of Carthage, Tunisia
| | - Rahma Mahjoub
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Pharmacy of Monastir, University of Monastir, Tunisia
| | - Ines Kammoun
- Department of Endocrinology B, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Amina Bibi
- Laboratory of Clinical Biology, Research Unit UR17SP01: Molecular Biology Applied to the Study of Hyperlipoproteinemias, Diabetes and Hormones, National Institute of Nutrition and Food Technology, Tunis, Tunisia.,Faculty of Pharmacy of Monastir, University of Monastir, Tunisia
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Nam SW, Choi J, Jeon HJ, Oh TK, Lee DH. The Associations Between Vitamin D Receptor BsmI and ApaI Polymorphisms and Obesity in Korean Patients with Type 2 Diabetes Mellitus. Diabetes Metab Syndr Obes 2021; 14:557-564. [PMID: 33603421 PMCID: PMC7882455 DOI: 10.2147/dmso.s293032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/27/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Vitamin D receptor (VDR) polymorphisms are associated with osteoporosis, diabetes, immunological diseases, and cancers. However, the association of obesity with VDR polymorphisms has shown inconsistent results, and perhaps it depends upon the characteristics of a population. Therefore, we evaluated the association between BsmI (rs1544410) and ApaI (rs7975232) polymorphisms of VDR and obesity in Korean patients with type 2 diabetes mellitus (T2DM). METHODS A total of 506 patients with T2DM participated in the study. Polymerase chain reaction-restriction fragment length polymorphism was used to analyze BsmI and ApaI polymorphisms; the genotypes were presented as BB, Bb, or bb for BsmI and AA, Aa, or aa for ApaI. Obesity was defined using the body mass index (BMI) with a cutoff level of 25 kg/m2. RESULTS The prevalence of obesity was higher in patients with the bb genotype than in those with BB or Bb genotypes (48.4% vs 33.9%, P = 0.031). The mean BMI was 25.2 ± 3.5 kg/m2 in patients with bb genotype and 24.1 ± 3.1 kg/m2 in patients with BB or Bb genotypes. Patients with Aa or aa genotypes showed a higher prevalence of obesity than patients with AA genotype (47.6% vs 26.1%, P = 0.043). Glycemic control parameters and lipid profiles did not show significant differences with either polymorphism. CONCLUSION To our knowledge, this is the first study to assess the association between VDR polymorphisms and obesity in Korean patients with T2DM. Further studies in larger populations and multiethnic cohorts are needed to validate our findings.
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Affiliation(s)
- Sang Won Nam
- Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, South Korea
| | - Jinwoo Choi
- Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, South Korea
| | - Hyun Jeong Jeon
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, South Korea
| | - Tae Keun Oh
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, South Korea
| | - Dong-Hwa Lee
- Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, South Korea
- Correspondence: Dong-Hwa Lee Department of Internal Medicine, Chungbuk National University Hospital, 776, 1sunhwan-Ro, Seowon-Gu, Cheongju-si, Chungcheongbuk-do, 28644, South KoreaTel +82-43-269-7504Fax +82-43-273-3252 Email
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Beyene DA, Daremipouran MR, Apprey V, Naab T, Kassim OO, Copeland RL, Kanaan YM. The Association Between the Genetic VDR SNP c.907+75C>T and Prostate Cancer Risk Is Modified by Tanning Potential. Cancer Genomics Proteomics 2020; 17:739-745. [PMID: 33099475 PMCID: PMC7675656 DOI: 10.21873/cgp.20228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/10/2020] [Accepted: 09/14/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Prostate cancer (PCa) is a multifactorial disease involving complex interactions between genetic and physiological/environmental factors. Vitamin D receptor (VDR) plays a role in numerous cellular pathways and it has been suggested that VDR genetic variants influence individual susceptibility to PCa. MATERIALS AND METHODS Logistic regression analysis was used to assess the association of six VDR single nucleotide polymorphisms (SNPs) and factors such as tanning potential and UV sunlight exposure with PCa risk. RESULTS Marginal significant interactions were found, with a 2-fold increase risk of PCa between SNP 1 (c.278-69G>A) and sunlight UV exposure [odds ratio (OR)=2.02, 95% confidence intervaI (CI)=1.036-4.36; p=0.05]; and a 4-fold increase risk of PCa between SNP 4 (c.907+75C>T) and tanning potential (OR=4.40, 95% CI=0.89-29.12; p=0.0591). In contrast, SNP 5 (rs731236, TaqI) and tanning potential interaction had a protective effect by reducing the risk of PCa by 55% (β=-0.804; OR=0.448, 95% CI=0.197-9.42; p=0.0427). SNPs 2 (rs61614328) and 6 (rs533037428) did not show any association with PCa even in the presence of UV sunlight exposure. CONCLUSION The protective effect of SNP 4 from PCa is lost and modified by tanning potential in African Americans. This finding needs to be verified by larger studies in different ethnic populations.
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Affiliation(s)
| | | | - Victor Apprey
- Community and Family Medicine, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Tammey Naab
- Department of Pathology, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Olakunle O Kassim
- Department of Microbiology, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Robert L Copeland
- Department of Pharmacology, College of Medicine, Howard University, Washington, DC, U.S.A.
| | - Yasmine M Kanaan
- Cancer Center, Howard University, Washington, DC, U.S.A.
- Department of Microbiology, College of Medicine, Howard University, Washington, DC, U.S.A
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Al-Ghafari AB, Balamash KS, Al Doghaither HA. TaqI and ApaI Variants of Vitamin D Receptor Gene Increase the Risk of Colorectal Cancer in a Saudi Population. Saudi J Med Med Sci 2020; 8:188-195. [PMID: 32952510 PMCID: PMC7485662 DOI: 10.4103/sjmms.sjmms_357_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/21/2019] [Accepted: 01/05/2020] [Indexed: 12/24/2022]
Abstract
Background: Polymorphisms in the gene encoding the vitamin D receptor (VDR) affect the protective role of vitamin D against many types of cancers, including colorectal cancer (CRC). Objective: The objective of this study was to assess the effect of four major polymorphisms of the VDR gene (ApaI, TaqI, BsmI and FokI) on the risk of CRC in a Saudi population. Materials and Methods: This case–control study recruited 132 CRC patients from the oncology clinics at King Abdulaziz University Hospital and 124 healthy controls from the blood bank at King Fahad General Hospital, Jeddah, Saudi Arabia, between September 2017 and August 2018. All participants were Saudis and aged 20–80 years. Genomic DNA samples were extracted from the peripheral blood cells and amplified with polymerase chain reaction. The resulting fragments were digested with different endonucleases to reveal the genotypes using the restriction fragment length polymorphism technique. The genotype distribution and allele frequency, odds ratio (OR), risk ratio (RR) and P values were determined with contingency table analysis following Hardy–Weinberg equilibrium equation. Results: For the ApaI single-nucleotide polymorphism (SNP) (rs7975232), only the heterozygous (Aa) genotype increased the risk of CRC (OR = 3.4, RR = 2.3, and P < 0.0001), whereas the TaqI SNP (rs731236) carriers with either the heterozygous (Tt) or homozygous (tt) genotype displayed an increased risk for the disease (OR = 6.18, RR = 4, P < 0.0001; OR = 3, RR = 2.4, P = 0.02, respectively). In contrast, heterozygous (Bb) and homozygous (bb) carriers of the BsmI SNP (rs1544410) had significantly lower risk for CRC (P < 0.0001). Finally, for the FokI SNP (rs2228570), there was no association with CRC risk. Conclusion: This study found that VDR SNPs ApaI and TaqI increase the risk of CRC, whereas BsmI reduces the risk of CRC in the selected Saudi population. Therefore, ApaI and TaqI SNPs could potentially be used as a diagnostic biomarker for CRC. However, the molecular mechanisms by which these variants increase or decrease the risk of CRC need to be investigated.
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Affiliation(s)
- Ayat B Al-Ghafari
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.,Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Cancer and Mutagenesis Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khadijah S Balamash
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Huda A Al Doghaither
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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Doraisamy R, Ramaswami K, Shanmugam J, Subramanian R, Sivashankaran B. Genetic risk factors for lumbar disc disease. Clin Anat 2020; 34:51-56. [PMID: 32583875 DOI: 10.1002/ca.23641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 06/18/2020] [Indexed: 01/08/2023]
Abstract
AIM AND BACKGROUND Lumbar disc degeneration (LDD) is thought to be multifactorial in origin. Very recently the focus has shifted to the involvement of a family of candidate genes in the pathogenesis of LDD. There is particular emphasis on the vitamin D receptor gene (VDR gene). The VDR polymorphisms FOK1, TAQ1, and APO1 have been variably associated with LDD. OBJECTIVE To evaluate the association between the FOK1/Taq1 genes and LDD. MATERIALS AND METHODS One hundred unrelated healthy (asymptomatic) individuals who presented for routine health checkup and 93 consecutive patients (43 males and 50 females) with no history of low back pain were enrolled in the study after informed consent was obtained. The MRI images of cases and controls were graded and peripheral blood samples were collected from all participants and sent for genetic analysis. RESULTS Individuals with the dominant genotype for Taq1 had a significantly higher association with LDD than those without it. There was no association between LDD and the Fok1 genotype. CONCLUSION Genetic predisposition is an important risk factor for LDD.
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Affiliation(s)
- Ravichandran Doraisamy
- Department of Anatomy, KMCH Institute of Health Sciences and Research (KMCH IHSR), Coimbatore, India
| | - Karthikeyan Ramaswami
- Department of Orthopaedics, Karpagam Faculty of Medical Sciences and Research (KFMSR), Coimbatore, India
| | - Jeevithan Shanmugam
- Department of Community Medicine, KMCH Institute of Health Sciences and Research (KMCH IHSR), Coimbatore, India
| | - Rashmi Subramanian
- Central Research Laboratory, Karpagam Faculty of Medical Sciences and Research (KFMSR), Coimbatore, India
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Torrungruang K, Chantarangsu S, Sura T, Thienpramuk L. Interplay between vitamin D receptor FokI polymorphism and smoking influences Porphyromonas gingivalis proportions in subgingival plaque. J Clin Periodontol 2020; 47:912-920. [PMID: 32418218 DOI: 10.1111/jcpe.13307] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/21/2020] [Accepted: 05/10/2020] [Indexed: 12/28/2022]
Abstract
AIM This cross-sectional study investigated the effect of the vitamin D receptor (VDR) FokI polymorphism and its interactions with smoking/drinking on the proportions of periodontal pathogens and periodontitis severity. MATERIALS AND METHODS FokI genotyping and bacterial quantification were performed using real-time polymerase chain reaction. Periodontitis severity was determined using mean clinical attachment level (CAL). Regression analyses examined the associations between the FokI polymorphism (rs2228570) and bacterial proportions or periodontitis severity. Effect modification by smoking or drinking was assessed. RESULTS The study population comprised 1,460 individuals, aged 39-66 years. After multivariable adjustment, the FokI risk genotypes (CC + CT) were associated with elevated Porphyromonas gingivalis proportions (regression coefficient (β) =0.294 ± 0.139; p = .034) and increased mean CAL (β = 0.130 ± 0.048; p = .007). The effect of the FokI polymorphism on P. gingivalis proportions was greater in smokers (β = 0.897 ± 0.328; p = .006) compared to non-smokers (β = 0.164 ± 0.153; p = .282) and in drinkers (β = 0.668 ± 0.242; p = .006) compared to non-drinkers (β = 0.114 ± 0.169; p = .500). The genotype*smoking interaction for P. gingivalis proportions was significant (p = .043), whereas the genotype*drinking interaction was not (p = .061). Similar results were found for the effect of the genotype*smoking/drinking interaction on mean CAL. CONCLUSIONS These findings suggest that the interplay between the host genotype and smoking is important in determining the subgingival microbial composition and periodontitis severity.
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Affiliation(s)
- Kitti Torrungruang
- Department of Microbiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Soranun Chantarangsu
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Thanyachai Sura
- Department of Internal Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Lalitsara Thienpramuk
- Health Division, Medical and Health Department, Electricity Generating Authority of Thailand, Nonthaburi, Thailand
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Suchanecka A, Chmielowiec K, Chmielowiec J, Trybek G, Masiak J, Michałowska-Sawczyn M, Nowicka R, Grocholewicz K, Grzywacz A. Vitamin D Receptor Gene Polymorphisms and Cigarette Smoking Impact on Oral Health: A Case-Control Study. Int J Environ Res Public Health 2020; 17:E3192. [PMID: 32375337 DOI: 10.3390/ijerph17093192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 11/17/2022]
Abstract
Periodontal diseases are multiperspective problems resulting from numerous and diverse exposures that influence the process of initiation or progression of disease. The negative influence of tobacco smoking on oral health is well documented. The aim of the study was to analyze three SNPs in vitamin D receptor gene-rs7975232 (ApaI), rs2228570 (FokI) and rs1544410 (BsmI)-combined with oral health assessment-pH, gingival index, dry mouth, periodontitis, dry socket, redness of oral cavity mucosa, leukoplakia-in a group of cigarette smokers and in non-smokers. Moreover, the possibility of interactions between these polymorphisms and smoking was examined. When comparing the smokers and non-smokers groups, we noticed that rs1544410 heterozygotes were significantly more frequent in the first group, and for the second, both homozygotes were more frequent. Additionally, we observed the impact of interaction between the rs7975232 genotype and smoking status on gingival index. Current smoking was also associated with all analyzed oral health measures except for leucoplakia. Correlation between pH and age in both smokers and non-smokers was also present. Results of our analysis indicate that in our study group lifestyle and aging were leading factors associated with worse oral health status. However, the impact of genetic variants, and also the impact of their interaction with smoking on analyzed parameters was also visible. These results show great possibilities for all levels of prevention of oral diseases by means of education based on evidence-based medicine, but also for incorporating genetic testing and early interventions into this process for predisposed individuals.
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10
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Oono F, Sakamoto Y, Tachi Y, Mabashi-Asazuma H, Iida K. Effect of Cdx2 Polymorphism on the Relationship between Dietary Calcium Intake and Peak Bone Mass in Young Japanese Women. Nutrients 2020; 12:nu12010191. [PMID: 32284510 PMCID: PMC7019402 DOI: 10.3390/nu12010191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 11/16/2022] Open
Abstract
Studies investigating the effect of the caudal-type homeobox protein 2 (Cdx2) polymorphism in the vitamin D receptor gene and calcium intake on bone mass have shown inconsistent results. This study investigated whether the effect of calcium intake on peak bone mass is affected by Cdx2 polymorphism in young Japanese women. A cross-sectional study of 500 young women was conducted. Dietary intake was assessed by the Food Frequency Questionnaire. The osteo sono-assessment index (OSI), assessed by the qualitative ultrasound method, was used as a bone mass index. The subjects were divided into two groups by the median calcium intake. The OSI was not different among Cdx2 genotypes and between calcium groups (p = 0.960, p = 0.191, respectively). The interaction between calcium and Cdx2 genotypes on the OSI approached significance (GG versus GA and AA genotypes, p = 0.092). The difference in the OSI between calcium groups was significant in the GG genotype (p = 0.028), but not in the GA or AA genotypes (p = 0.501, p = 0.306, respectively). Adjustment for covariates (body mass index and physical activity) did not change the results. In conclusion, the relationship between dietary calcium intake and peak bone mass may vary according to Cdx2 polymorphism.
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Affiliation(s)
- Fumi Oono
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan; (F.O.); (H.M.-A.)
| | - Yuri Sakamoto
- Laboratory of Nutrition Physiology, Tokyo Kasei University, Tokyo 173-8602, Japan; (Y.S.); (Y.T.)
| | - Yoichi Tachi
- Laboratory of Nutrition Physiology, Tokyo Kasei University, Tokyo 173-8602, Japan; (Y.S.); (Y.T.)
| | - Hideaki Mabashi-Asazuma
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan; (F.O.); (H.M.-A.)
| | - Kaoruko Iida
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan; (F.O.); (H.M.-A.)
- Institute for Human Life Innovation, Ochanomizu University, Tokyo 112-8610, Japan
- Correspondence: ; Tel.: +81-3-5978-5474
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Vaughan-Shaw PG, Zgaga L, Ooi LY, Theodoratou E, Timofeeva M, Svinti V, Walker M, O'Sullivan F, Ewing A, Johnston S, Din FVN, Campbell H, Farrington SM, Dunlop MG. Low plasma vitamin D is associated with adverse colorectal cancer survival after surgical resection, independent of systemic inflammatory response. Gut 2020; 69:103-111. [PMID: 31023832 PMCID: PMC6943245 DOI: 10.1136/gutjnl-2018-317922] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/04/2019] [Accepted: 03/26/2019] [Indexed: 12/31/2022]
Abstract
OBJECTIVE We assessed the effect of surgical resection of colorectal cancer (CRC) on perioperative plasma vitamin D (25OHD) and C-reactive protein (CRP) level. We investigated the relationship between circulating vitamin D level and CRC survival. DESIGN We sequentially sampled 92 patients undergoing CRC resection, and measured plasma 25OHD and CRP. For survival analyses, we assayed 25OHD and CRP in two temporally distinct CRC patient cohorts (n=2006, n=2100) and investigated the association between survival outcome, circulating vitamin D and systemic inflammatory response. RESULTS Serial sampling revealed a postoperative fall (mean 17.3 nmol/L; p=3.6e-9) in plasma 25OHD (nadir days 1-2). CRP peaked 3-5 days postoperatively (143.1 mg/L; p=1.4e-12), yet the postoperative fall in 25OHD was independent of CRP. In cohort analyses, 25OHD was lower in the 12 months following operation (mean=48.8 nmol/L) than preoperatively (54.8 nmol/L; p=1.2e-5) recovering after 24 months (52.2 nmol/L; p=0.002). Survival analysis in American Joint Committee on Cancer stages I-III demonstrated associations between 25OHD tertile and CRC mortality (HR=0.69; 95% CI 0.46 to 0.91) and all-cause mortality (HR=0.68; 95% CI 0.50 to 0.85), and was independent of CRP. We observed interaction effects between plasma 25OHD and rs11568820 genotype (functional VDR polymorphism) with a strong protective effect of higher 25OHD only in patients with GG genotype (HR=0.51; 95% CI 0.21 to 0.81). We developed an online tool for predicted survival (https://apps.igmm.ed.ac.uk/mortalityCalculator/) that incorporates 25OHD with clinically useful predictive performance (area under the curve 0.77). CONCLUSIONS CRC surgery induces a fall in circulating 25OHD. Plasma 25OHD level is a prognostic biomarker with low 25OHD associated with poorer survival, particularly in those with rs11568820 GG genotype. A randomised trial of vitamin D supplementation after CRC surgery has compelling rationale.
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Affiliation(s)
- P G Vaughan-Shaw
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - L Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Republic of Ireland
| | - L Y Ooi
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - E Theodoratou
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - M Timofeeva
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - V Svinti
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - M Walker
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - F O'Sullivan
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Republic of Ireland
| | - A Ewing
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - S Johnston
- Specialist Endocrine Laboratory, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - F V N Din
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - H Campbell
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - S M Farrington
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - M G Dunlop
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
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12
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Daremipouran MR, Beyene D, Apprey V, Naab TJ, Kassim OO, Copeland RL, Kanaan YM. The Association of a Novel Identified VDR SNP With Prostate Cancer in African American Men. Cancer Genomics Proteomics 2019; 16:245-255. [PMID: 31243105 DOI: 10.21873/cgp.20129] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/10/2019] [Accepted: 04/15/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM Vitamin D receptor (VDR) is present in numerous cellular pathways and it has been suggested that VDR genetic variants influence individual susceptibility to prostate cancer. Also, analyses of single nucleotide polymorphisms (SNPs) in VDR revealed ethnicity-associated polymorphisms. The aim of this study was to identify VDR SNPs in African American men with and without prostate cancer. MATERIALS AND METHODS The entire VDR gene was screened for germline mutations in a case-control study by denaturing high performance liquid chromatography and DNA sequencing. Logistic regression was used to estimate the association of SNPs, age, family history, and Gleason score with prostate cancer risk. RESULTS Six SNPs in the non-coding regions, and one SNP in the coding region, were detected. SNP 1 (c.278-69G>A) and SNP 4 (c.907+75C>T) have not been previously reported. SNP 4 had a significant protective effect (β=-0.6, p<0.05); whereas, SNP 7 (rs7975232) showed an increase association with prostate cancer risk and high Gleason score (β=0.32, p<0.05). SNP 4, SNP 7 and age were better predictors of prostate cancer risk than family history with a high degree of sensitivity (74.7%) and specificity (92.4%). CONCLUSION SNP 4 and SNP 7 could be promising markers for prediction of reduced or increased prostate cancer risk, respectively.
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Affiliation(s)
| | - Desta Beyene
- Cancer Center, Howard University, Washington, DC, U.S.A
| | - Victor Apprey
- Community and Family Medicine, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Tammey J Naab
- Department of Pathology, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Olakunle O Kassim
- Department of Microbiology, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Robert L Copeland
- Cancer Center, Howard University, Washington, DC, U.S.A.,Department of Pharmacology, College of Medicine, Howard University, Washington, DC, U.S.A
| | - Yasmine M Kanaan
- Cancer Center, Howard University, Washington, DC, U.S.A. .,Department of Microbiology, College of Medicine, Howard University, Washington, DC, U.S.A
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13
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Kong F, Li L, Wang G, Deng X, Li Z, Kong X. VDR signaling inhibits cancer-associated-fibroblasts' release of exosomal miR-10a-5p and limits their supportive effects on pancreatic cancer cells. Gut 2019; 68:950-951. [PMID: 29695492 DOI: 10.1136/gutjnl-2018-316627] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 04/17/2018] [Accepted: 04/19/2018] [Indexed: 12/08/2022]
Affiliation(s)
- Fanyang Kong
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Lei Li
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Guokun Wang
- Key Laboratory of Digestive Disease, Yinzhou Hospital, Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Xuan Deng
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhaoshen Li
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xiangyu Kong
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
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14
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Baca KM, Govil M, Zmuda JM, Simhan HN, Marazita ML, Bodnar LM. Vitamin D metabolic loci and preeclampsia risk in multi-ethnic pregnant women. Physiol Rep 2019; 6. [PMID: 29380949 PMCID: PMC5789712 DOI: 10.14814/phy2.13468] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 09/12/2017] [Indexed: 12/16/2022] Open
Abstract
Allelic variants in vitamin D metabolism genes may increase the risk of preeclampsia, but few studies have systematically tested this hypothesis. Our objective was to evaluate the relationship between maternal allelic variants in three vitamin D metabolism genes and risk of preeclampsia. Samples were from two case‐control studies of pregnant women who delivered in Pittsburgh, PA from 1999 to 2010 and twelve recruiting sites across the United States from 1959 to 1965. Single‐nucleotide polymorphisms (SNPs) were genotyped 50 kilobases up‐ and down‐stream in three genes (VDR,GC, and CYP27B1) in the samples from both studies, for a total of 744 preeclampsia cases and 2411 controls. Using multivariable logistic regression, we estimated the associations between allelic variation in each locus and preeclampsia risk by maternal race and study. Meta‐analysis was used to estimate the association across race‐study groups for each SNP. Minor allele of a noncoding region of the VDR gene was significantly associated with preeclampsia risk, which was verified in the meta‐analysis [odds ratio (OR), 95% confidence intervals (CI)] after adjusting for multiple comparisons [rs12831006:1.5 (1.2, 2.0), P < 0.0001]. The meta‐analysis identified associations for one intron GC variant [rs843010:1.4 (1.1, 1.9) P < 0.05] and two variants of the flanking region of GC [rs842991:1.5 (1.1, 2.0) P < 0.05; rs16846876:0.75 (0.58, 0.98) P < 0.05]. There were no statistically significant associations for CYP27B1 SNPs. Our results provide additional support for a biological role of vitamin D in preeclampsia.
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Affiliation(s)
- Katharyn M Baca
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Manika Govil
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Joseph M Zmuda
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hyagriv N Simhan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.,Magee-Womens Research Institute, Pittsburgh, Pennsylvania
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Lisa M Bodnar
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.,Magee-Womens Research Institute, Pittsburgh, Pennsylvania
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15
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Abstract
AIMS The underlying mechanisms of vitamin D receptor (VDR) and osteoprotegerin (OPG) genetic variation associated with bone mineral density and osteoporosis remain uncertain. This study aimed to investigate the association of VDR and OPG gene polymorphism as well as gene-gene interaction and their haplotype combination with the risk of osteoporosis. METHODS Polymerase chain reaction restriction fragment length polymorphism was carried out for single nucleotide polymorphism (SNP) detection. Generalized multifactor dimension reduction (GMDR) is used to identify the interaction. SHEsis software evaluated the haplotype and logistic regression was performed to assess the association between the SNPs within the VDR and OPG genes and osteoporosis. RESULTS The risk of osteoporosis in the VDR-rs2228570 polymorphism T-allele carriers was significantly higher than that in CC (CT/TT versus CC) individuals (adjusted odds ratio [OR] [95% confidence interval (CI)] = 1.76 [1.33-2.22]). The risk of osteoporosis was also higher in the G-allele carrier of the OPG-rs3102735 polymorphism than in individuals with the AA genotype (AG/GG vs. AA) (adjusted OR [95% CI] = 1.65 [1.27-2.14]). However, after adjusting for sex, age, and waist circumference covariates, no significant association of VDR-rs17879735 and OPG-rs2073618 with the osteoporosis risk was revealed. The GMDR method identified that gene-gene interactions were significant, but not for gene/AO interaction. Haplotypes were analyzed with SHEsis software. We did not detect a high-risk haplotype combination associated with osteoporosis. CONCLUSIONS Both VDR-rs2228570-T and OPG-rs3102735-G and their interactions are related to the increased risk of osteoporosis.
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Affiliation(s)
- F Wu
- a Department of Gynecology and Obstetrics , Beijing Hospital, National Center of Gerontology , Beijing , China
| | - D Zhou
- a Department of Gynecology and Obstetrics , Beijing Hospital, National Center of Gerontology , Beijing , China
| | - G Shen
- a Department of Gynecology and Obstetrics , Beijing Hospital, National Center of Gerontology , Beijing , China
| | - Y Cui
- a Department of Gynecology and Obstetrics , Beijing Hospital, National Center of Gerontology , Beijing , China
| | - Q Lv
- a Department of Gynecology and Obstetrics , Beijing Hospital, National Center of Gerontology , Beijing , China
| | - F Wei
- a Department of Gynecology and Obstetrics , Beijing Hospital, National Center of Gerontology , Beijing , China
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16
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Hu WL, Ren H, Xu BF, Zhang JP, Zhang RL, Wang QQ, Zhang TT. Evaluation of IL-17A, IL-17F, IL-23R, VDR, CCL2, CCL5, CCR2, and CCR5 gene polymorphisms and expression in Chinese individuals with syphilis. J Cell Biochem 2018; 119:10151-10164. [PMID: 30171709 DOI: 10.1002/jcb.27352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 06/28/2018] [Indexed: 11/12/2022]
Abstract
Syphilis is a sexually transmitted disease caused by the infection of Treponema pallidum subspecies pallidum. T-helper type 17-related genes, vitamin D receptor (VDR) gene, and chemokine/chemokine receptor genes are crucial in microbial infection. A total of 16 single-nucleotide polymorphisms (SNPs) in eight genes (interleukin [IL]-17A, IL-17F, IL-23R, VDR, C-C motif chemokine ligand [CCL] 2, CCL5, C-C chemokine receptor [CCR] 2, and CCR5) were analyzed in 188 patients with syphilis and 216 healthy controls. The results showed a strong correlation of IL-17A rs2275913 (AA vs AG + GG: odds ratio [OR], 1.78; 95% confidence interval [CI], 1.09 to 2.92; P = 0.020; A vs G: OR, 1.33; 95% CI, 1.01 to 1.76; P = 0.043) and rs3819024 (GG vs AA + GA: OR, 1.76; 95% CI, 1.06 to 2.91; P = 0.028; G vs A: OR, 1.36; 95% CI, 1.03 to 1.80; P = 0.030) with syphilis. In haplotype analysis, IL-17A rs2275913A/rs3819024G showed a risk effect (OR, 1.38; 95% CI, 1.04 to 1.82; P = 0.026), whereas IL-17A rs2275913G/rs3819024A showed a protective effect (OR, 0.76; 95% CI, 0.57 to 0.998; P = 0.048). The expression levels of IL-17A messenger RNA (mRNA) in peripheral blood mononuclear cells and IL-17A secretion in plasma were further examined. No significant differences were found between patients with syphilis and healthy controls. The study also explored whether IL-17A rs2275913 and rs3819024 were associated with the expression of IL-17A mRNA and IL-17A secretion in patients with syphilis. Similar negative results were found. In conclusion, the polymorphisms of IL-17A rs2275913 and rs3819024 and the haplotype containing these two SNPs influenced the susceptibility to syphilis in a Han Chinese population.
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Affiliation(s)
- Wen-Long Hu
- Department of STD Control, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, National Center for STD Control, Chi Centers for Disease Control and Prevention, Nanjing, China
| | - Hong Ren
- Department of Dermatology, Xuzhong Medical University Affiliated Hospital of Lianyungang, Lianyungang, China
| | - Bu-Fang Xu
- Department of STD Control, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, National Center for STD Control, Chi Centers for Disease Control and Prevention, Nanjing, China
| | - Jing-Ping Zhang
- Department of STD Control, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, National Center for STD Control, Chi Centers for Disease Control and Prevention, Nanjing, China
| | - Rui-Li Zhang
- Department of Dermatology, Wuxi Second Affiliated Hospital of Nanjing Medical University, Wuxi, China
| | - Qian-Qiu Wang
- Department of STD Control, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, National Center for STD Control, Chi Centers for Disease Control and Prevention, Nanjing, China
| | - Ting-Ting Zhang
- Department of Dermatology, Xuzhong Medical University Affiliated Hospital of Lianyungang, Lianyungang, China
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17
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Copeland RL, Beyene D, Apprey V, Daremipouran MR, Naab TJ, Kassim OO, Kanaan YM. DHPLC Elution Patterns of VDR PCR Products Can Predict Prostate Cancer Susceptibility in African American Men. Cancer Genomics Proteomics 2017; 14:461-467. [PMID: 29109096 PMCID: PMC6070329 DOI: 10.21873/cgp.20056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/11/2017] [Accepted: 09/06/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM Denaturing high-performance liquid chromatography (DHPLC) is a technique that is used to detect mutations. The aim of the present study was to determine whether DHPLC elution patterns of vitamin D receptor (VDR) gene PCR products can serve as indicators of susceptibility to prostate cancer (PCa) risk. MATERIALS AND METHODS DNA samples of PCa cases and controls were screened for mutations and/or polymorphisms in coding exons of VDR gene using DHPLC analysis. Logistic regression, phi-coefficient (ϕ), and Backward Wald models were used to analyze the data. RESULTS Similar elution patterns of exons 1, 6, 7 and 9 along with higher prevalence of heteroduplex DNA were observed in PCa samples than in controls. Exons 4 and 8 had highly significant protective effects (p<0.05). Whereas, exons 5, 7, and 9 were perfectly positively correlated with PCa risk (ϕ=1), thus presenting candidate exons significantly associated with susceptibility to PCa. CONCLUSION DHPLC elution patterns of the selected exons could be useful to predict susceptibility to develop PCa.
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Affiliation(s)
- Robert L Copeland
- Department of Pharmacology, Howard University, Washington, DC, U.S.A
- Cancer Center, Howard University, Washington, DC, U.S.A
| | - Desta Beyene
- Cancer Center, Howard University, Washington, DC, U.S.A
| | - Victor Apprey
- Department of Community and Family Medicine, Howard University, Washington, DC, U.S.A
| | | | - Tammey J Naab
- Department of Pathology, Howard University, Washington, DC, U.S.A
| | - Olakunle O Kassim
- Department of Microbiology, Howard University, Washington, DC, U.S.A
| | - Yasmine M Kanaan
- Cancer Center, Howard University, Washington, DC, U.S.A.
- Department of Microbiology, Howard University, Washington, DC, U.S.A
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18
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Seleit I, Bakry OA, Masoud E, Nabil S. Identification of Genotypes and Allelic Frequencies of Vitamin D Receptor Gene Polymorphism (TaqI) in Egyptian Melasma Patients. Indian Dermatol Online J 2017; 8:443-448. [PMID: 29204386 PMCID: PMC5707835 DOI: 10.4103/idoj.idoj_363_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Melasma is a characteristic pattern of facial hyperpigmentation, occurring primarily on the forehead, cheeks, and chin, in a mask-like distribution. The pathogenesis of melasma is not fully understood. Vitamin D plays a role in skin pigmentation. It exerts its effect through vitamin D receptor (VDR), which is expressed in variable cells including normal melanocytes. Aim and Objective: The aim of the current work was to investigate if VDR gene polymorphism (TaqI) confers susceptibility to melasma in Egyptian patients. Materials and Methods: A total of 45 female patients with melasma were recruited and 50 healthy subjects that were matched on age, sex, body mass index, and skin phototype, were included as a control group. TaqI polymorphism was investigated using restriction fragment length polymorphism polymerase chain reaction (RFLP PCR). Results: Presence of (t) allele and (tt) genotype was significantly associated with melasma cases compared with control group (P < 0.001 for both). No significant association was found between (tt) genotype or (t) allele and clinical data of the studied cases. Conclusion: TaqI polymorphism is associated with melasma. Further, large-scale studies are recommended to underscore and validate the current findings. It is also necessary for future studies to extend the research to other populations and ethnicities. Investigating other VDR gene polymorphisms in melasma is also warranted. Since melasma is a multifactorial disease, gene–gene and gene–environment interactions should be considered in future genetic-epidemiologic researches to apply more comprehensive insight into the role of VDR gene in its pathogenesis.
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Affiliation(s)
- Iman Seleit
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Egypt
| | - Ola Ahmed Bakry
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Egypt
| | - Eman Masoud
- Department of Medical Biochemistry, Faculty of Medicine, Menoufiya University, Egypt
| | - Shaimaa Nabil
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Egypt
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19
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Bozsodi A, Boja S, Szilagyi A, Somhegyi A, Varga PP, Lazary A. Muscle strength is associated with vitamin D receptor gene variants. J Orthop Res 2016; 34:2031-2037. [PMID: 26932507 DOI: 10.1002/jor.23220] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/24/2016] [Indexed: 02/04/2023]
Abstract
Vitamin D receptor (VDR) is an important candidate gene in muscle function. Scientific reports on the effect of its genetic variants on muscle strength are contradictory likely due to the inconsistent study designs. Hand grip strength (HGS) is a highly heritable phenotype of muscle strength but only limited studies are available on its genetic background. Association between VDR polymorphisms and HGS has been poorly investigated and previous reports are conflicting. We studied the effect of VDR gene variants on HGS in a sample of 706 schoolchildren. Genomic DNA was extracted from saliva samples and six candidate single nucleotide polymorphisms (SNPs) across the VDR gene were genotyped with Sequenom MassARRAY technique. HGS was measured with a digital dynamometer in both hands. Single marker and haplotype associations were adjusted for demographic parameters. Three SNPs, rs4516035 (A1012G; p = 0.009), rs1544410 (BsmI; p = 0.010), and rs731236 (TaqI; p = 0.038) and a 3' UTR haploblock constructed by three SNPs (Bsml-Taq1-rs10783215; p < 0.005) showed significantly associations with HGS of the dominant hand. In the non-dominant hand, the effects of the A1012G (p = 0.034) and the 3' UTR haploblock (p < 0.01) on HGS were also significant. Since the promoter SNP (A10112G) and the 3' UTR haplotype were proved to be associated with the expression and the stability of the VDR mRNA in earlier studies, VDR variants can be supposed to have a direct effect on muscle strength. The individual genetic patterns can also explain the inconsistency of the previously published clinical results on the association between vitamin D and muscle function. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:2031-2037, 2016.
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Affiliation(s)
- Arpad Bozsodi
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary.,School of Ph.D Studies, Semmelweis University, Budapest, Hungary
| | - Sara Boja
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
| | - Agnes Szilagyi
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
| | - Annamaria Somhegyi
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
| | - Peter Pal Varga
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
| | - Aron Lazary
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
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20
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Deevi RK, McClements J, McCloskey KD, Fatehullah A, Tkocz D, Javadi A, Higginson R, Durban VM, Jansen M, Clarke A, Loughrey MB, Campbell FC. Vitamin D3 suppresses morphological evolution of the cribriform cancerous phenotype. Oncotarget 2016; 7:49042-49064. [PMID: 27119498 PMCID: PMC5226489 DOI: 10.18632/oncotarget.8863] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 02/28/2016] [Indexed: 12/14/2022] Open
Abstract
Development of cribriform morphology (CM) heralds malignant change in human colon but lack of mechanistic understanding hampers preventive therapy. This study investigated CM pathobiology in three-dimensional (3D) Caco-2 culture models of colorectal glandular architecture, assessed translational relevance and tested effects of 1,25(OH)2D3,theactive form of vitamin D. CM evolution was driven by oncogenic perturbation of the apical polarity (AP) complex comprising PTEN, CDC42 and PRKCZ (phosphatase and tensin homolog, cell division cycle 42 and protein kinase C zeta). Suppression of AP genes initiated a spatiotemporal cascade of mitotic spindle misorientation, apical membrane misalignment and aberrant epithelial configuration. Collectively, these events promoted "Swiss cheese-like" cribriform morphology (CM) comprising multiple abnormal "back to back" lumens surrounded by atypical stratified epithelium, in 3D colorectal gland models. Intestinal cancer driven purely by PTEN-deficiency in transgenic mice developed CM and in human CRC, CM associated with PTEN and PRKCZ readouts. Treatment of PTEN-deficient 3D cultures with 1,25(OH)2D3 upregulated PTEN, rapidly activated CDC42 and PRKCZ, corrected mitotic spindle alignment and suppressed CM development. Conversely, mutationally-activated KRAS blocked1,25(OH)2D3 rescue of glandular architecture. We conclude that 1,25(OH)2D3 upregulates AP signalling to reverse CM in a KRAS wild type (wt), clinically predictive CRC model system. Vitamin D could be developed as therapy to suppress inception or progression of a subset of colorectal tumors.
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Affiliation(s)
- Ravi K. Deevi
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | - Jane McClements
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | - Karen D. McCloskey
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | - Aliya Fatehullah
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | - Dorota Tkocz
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | - Arman Javadi
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | - Robyn Higginson
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
| | | | - Marnix Jansen
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, UK
| | - Alan Clarke
- European Cancer Stem Cell Research Institute, Cardiff University, Cardiff, UK
| | - Maurice B. Loughrey
- Northern Ireland Molecular Pathology Laboratory, Centre for Cancer Research and Cell Biology, Queens University Belfast and Belfast Health and Social Care Trust, Belfast, UK
| | - Frederick C. Campbell
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK
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Khan RJ, Riestra P, Gebreab SY, Wilson JG, Gaye A, Xu R, Davis SK. Vitamin D Receptor Gene Polymorphisms Are Associated with Abdominal Visceral Adipose Tissue Volume and Serum Adipokine Concentrations but Not with Body Mass Index or Waist Circumference in African Americans: The Jackson Heart Study. J Nutr 2016; 146:1476-82. [PMID: 27358421 PMCID: PMC4958289 DOI: 10.3945/jn.116.229963] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/19/2016] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The biological actions of vitamin D are mediated through the vitamin D receptor (VDR). Single-nucleotide polymorphisms (SNPs) in the VDR gene have been previously associated with adiposity traits. However, to our knowledge, few studies have included direct measures of adiposity and adipokine concentrations. OBJECTIVE We examined the association of tagging SNPs in the VDR gene with multiple adiposity measures, including waist circumference (WC), body mass index (BMI), body fat percentage, subcutaneous and visceral adipose tissue (VAT) volume, and serum adipokine (adiponectin and leptin) concentrations in adult African Americans (AAs). METHODS Data from 3020 participants (61.9% women; mean age, 54.6 y) from the Jackson Heart Study were used for this analysis. Forty-five tag SNPs were chosen with the use of genotype data from the International HapMap project. We used linear regression to test the associations of imputed VDR SNPs with each of the traits, adjusted for age, sex, educational status, physical activity, smoking, alcohol intake, serum vitamin D concentration, European ancestry, and multiple testing. RESULTS The G allele of the SNP rs4328262 remained associated with increased VAT volume after multiple testing correction (β = 45.7; P < 0.001). The A allele of another SNP (rs11574070) was nominally associated with body fat percentage (β = 0.96; P = 0.002). None of the VDR SNPs analyzed showed any link with WC or BMI. The A allele of rs2228570 (β = 0.08; P = 0.001) for men and the T allele of rs2853563 (β = 0.04; P < 0.001) for women remained positively associated with serum adiponectin concentrations after multiple testing correction. CONCLUSION Although we did not find any association for anthropometric measures, we did observe associations of VDR variants with serum adipokines and with the more metabolically active fat, VAT. Therefore, our findings demonstrate a possible role of VDR variants in regulating adipose tissue activity and adiposity among AAs.
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Affiliation(s)
- Rumana J Khan
- Cardiovascular Section, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD; and
| | - Pia Riestra
- Cardiovascular Section, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD; and
| | - Samson Y Gebreab
- Cardiovascular Section, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD; and
| | - James G Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS
| | - Amadou Gaye
- Cardiovascular Section, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD; and
| | - Ruihua Xu
- Cardiovascular Section, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD; and
| | - Sharon K Davis
- Cardiovascular Section, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD; and
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22
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Török N, Török R, Klivényi P, Engelhardt J, Vécsei L. Investigation of vitamin D receptor polymorphisms in amyotrophic lateral sclerosis. Acta Neurol Scand 2016; 133:302-8. [PMID: 26190642 DOI: 10.1111/ane.12463] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Amyotrophic lateral sclerosis (ALS) patients manifest aberrations in the vitamin D endocrine system, with a vitamin D deficiency. Genetic investigations have identified those proteins which link vitamin D to ALS pathology: major histocompatibility complex class II molecules, toll-like receptors, poly(ADP ribose) polymerase-1, haeme oxygenase-1, the reduced form of nicotinamide adenine dinucleotide phosphate and calcium-binding proteins. Vitamin D additionally impacts ALS through cell-signalling mechanisms: glutamate, matrix metalloproteinases, the Wnt/β-catenin signalling pathway, mitogen-activated protein kinase pathways, prostaglandins, reactive oxygen species and nitric oxide synthase, but its role has been only poorly investigated. OBJECTIVE Our aim was to investigate vitamin D receptor (VDR) gene single nucleotide polymorphisms (SNPs) in an ALS population. This gene encodes the nuclear hormone receptor for vitamin D3. MATERIALS AND METHODS A total of 75 consecutive sporadic ALS patients (~20% of the Hungarian ALS population) and 97 healthy controls were enrolled to investigate the possible effects of the different VDR alleles. A restriction fragment length polymorphism technique was utilized for allele discrimination. RESULTS One of the four investigated SNPs was associated with the disease, but none of the alleles of these SNPs influenced the age at disease onset. The ApaI A allele was more frequent in the ALS group than in the control group and may be an ALS risk factor. CONCLUSIONS This is the first verification of the genetic link between ALS and VDR. However, further studies are needed to confirm these findings.
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Affiliation(s)
- N. Török
- Department of Neurology; Faculty of Medicine; Albert Szent-Györgyi Clinical Centre; University of Szeged; Szeged Hungary
| | - R. Török
- Department of Neurology; Faculty of Medicine; Albert Szent-Györgyi Clinical Centre; University of Szeged; Szeged Hungary
| | - P. Klivényi
- Department of Neurology; Faculty of Medicine; Albert Szent-Györgyi Clinical Centre; University of Szeged; Szeged Hungary
| | - J. Engelhardt
- Department of Neurology; Faculty of Medicine; Albert Szent-Györgyi Clinical Centre; University of Szeged; Szeged Hungary
| | - L. Vécsei
- Department of Neurology; Faculty of Medicine; Albert Szent-Györgyi Clinical Centre; University of Szeged; Szeged Hungary
- MTA-SZTE Neuroscience Research Group; Szeged Hungary
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23
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Zong Q, Ni D, Li L, Shi Y. Association of rs2228570 polymorphism of vitamin D receptor gene with degenerative disc disease: a meta-analysis involving 2947 subjects. Int J Clin Exp Med 2015; 8:22108-22116. [PMID: 26885185 PMCID: PMC4729971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 12/06/2015] [Indexed: 06/05/2023]
Abstract
This study aimed to explore the association between the rs2228570 polymorphism in the vitamin D receptor gene and degenerative disc disease (IDD), especially in European. We perform a meta-analysis to analyze the association after searching the relevant studies through China National Knowledge Infrastructure (CNKI), PubMed, Medline and EMBASE databases. And odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of the association. A total of 10 studies involving 1,465 cases and 1,482 controls were included in the meta-analysis. Overall, there was not significant risk between rs2228570 polymorphism and degenerative disc disease in any genetic models. In addition, stratified analyses by ethnicity revealed similar results. However, stratified analyses by others indicates an association between IDD and the FF genotype (OR=0.62, 95% CI=0.43- 0.90, P=0.486) in age =40, and the F allele (OR=0.84, 95% CI=0.73-0.96, P=0.992), FF genotype (OR=0.78, 95% CI=0.65-0.93, P=0.853) in sample size > 300, and ff genotype (OR=0.91, 95% CI=1.11-3.29, P=0.783), FF genotype (OR=0.70, 95% CI=0.51-0.96, P=0.258) in Northern European. This meta-analysis suggested that the rs2228570 polymorphism may not be associated with degenerative disc disease. However, there existed some diversities, especially in age < 40, sample size > 300, countries in Northern Europe, suggesting that carrying the VDR FokI F allele may be a protective factor against IDD development. But a large number of well-designed studies are still required to assess this polymorphism and degenerative disc disease.
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Kim SW, Lee JM, Ha JH, Kang HH, Rhee CK, Kim JW, Moon HS, Baek KH, Lee SH. Association between vitamin D receptor polymorphisms and osteoporosis in patients with COPD. Int J Chron Obstruct Pulmon Dis 2015; 10:1809-17. [PMID: 26379431 PMCID: PMC4567171 DOI: 10.2147/copd.s91576] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Patients with COPD are at an increased risk of osteoporosis. Although many studies have addressed the relationship between the vitamin D receptor (VDR) polymorphisms and bone health, this relationship has not been fully investigated in patients with COPD. In this study, we investigated the association of VDR polymorphisms with bone mineral density (BMD) and other clinical parameters in patients with COPD. PATIENTS AND METHODS In total, 200 patients with COPD were included in this study. The VDR polymorphisms rs1544410 (A/G-BsmI), rs7975232 (A/C-ApaI), rs731236 (C/T-TaqI), and rs10735810 (C/T-FokI) were determined by Sanger sequencing using blood DNA samples. BMD of the lumbar vertebra and the femoral neck was measured by dual-energy X-ray absorptiometry. Other clinical parameters were also evaluated. Haplotype and multivariate analyses were also performed. RESULTS Sex, body mass index, steroid use, percentage of forced expiratory volume in 1 second (FEV1), alkaline phosphatase, and 25-hydroxyvitamin D significantly influenced the risk of osteoporosis. Patients with osteoporosis were more likely to carry the rs7975232 C allele compared to normal patients with BMD. Haplotypes GCT and GAT were related to osteoporosis. Patients without the haplotype GAT allele showed a significantly lower T-score at the femoral neck and an increased risk of osteoporosis (odds ratio [OR]= 2.78, 95% confidence interval [CI]= 1.20-6.48, P=0.018) compared with carriers in the dominant model. CONCLUSION Genetic variations in VDR are significantly associated with osteoporosis among patients with COPD. Further studies are required to confirm the role of the VDR polymorphisms in osteoporosis among patients with COPD.
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Affiliation(s)
- Sei Won Kim
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Min Lee
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jick Hwan Ha
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon Hui Kang
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chin Kook Rhee
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jin Woo Kim
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwa Sik Moon
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki Hyun Baek
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang Haak Lee
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
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Karatayli SC, Ulger ZE, Ergul AA, Keskin O, Karatayli E, Albayrak R, Ozkan M, Idilman R, Yalcin K, Bozkaya H, Uzunalimoğlu O, Yurdaydin C, Bozdayi AM. Tumour necrosis factor-alpha, interleukin-10, interferon-gamma and vitamin D receptor gene polymorphisms in patients with chronic hepatitis delta. J Viral Hepat 2014; 21:297-304. [PMID: 24597698 DOI: 10.1111/jvh.12139] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 06/13/2013] [Indexed: 12/14/2022]
Abstract
No data exist to assess certain polymorphisms that have a potential effect on the immune response in patients with chronic hepatitis delta (CHD). The aim of this study was to investigate polymorphisms in 6 polymorphic sites: IL-10 -1082 (rs1800896), IL-10 -627 (rs1800872), IFN-γ +874 (rs62559044), TNF-α -308 (rs1800629), vitamin D receptor (VDR) FokI (rs2228570) and VDR TaqI (rs731236). The genotypes of 67 patients with CHD and 119 patients with chronic hepatitis B (CHB) were compared. In addition, 56 individuals with resolved hepatitis B virus (HBV) infection were used as a control group for patients with CHB. Polymorphisms in TNF-α, IL-10, and VDR genes were analysed using polymerase chain reaction/restriction fragment length polymorphism methods. The IFN-γ gene polymorphism was detected by allele-specific polymerase chain reaction (PCR). Patients with CDH were more likely to have advanced liver disease compared with patients with CHB (P < 0.0001). IL-10 -1082 and VDR TaqI polymorphisms showed significant differences between patients with CHD and CHB. The high secretory IL-10 -1082 genotype GG was less frequent in CHD compared with patients with CHB and resolved HBV (17.7%, 37.4% and 47.1%, respectively (P < 0.05 for CHD vs CHB and resolved HBV). The frequency of the high secretory VDR TaqI TT genotype was 86.6% in patients with CHD, 62.7% in patients with CHB and 62.5% in resolved HBV individuals (CHD vs CHB: P < 0.05). None of the polymorphisms analysed had an effect on HBV persistence. IL-10 -1082 and VDR TaqI polymorphisms may contribute to the more severe liver disease associated with CHD compared with CHB.
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Affiliation(s)
- S C Karatayli
- Hepatology Institute, Ankara University, Ankara, Turkey
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Li L, Wu B, Yang L, Yin G, Wei W, Sui S, Liu J. Association of vitamin D receptor gene polymorphisms with pancreatic cancer: A pilot study in a North China Population. Oncol Lett 2013; 5:1731-1735. [PMID: 23761840 PMCID: PMC3678656 DOI: 10.3892/ol.2013.1215] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 02/20/2013] [Indexed: 11/16/2022] Open
Abstract
Polymorphisms of the vitamin D receptor (VDR) gene may be a risk factor for pancreatic cancer (PC). We investigated the association of two single-nucleotide polymorphisms (SNPs) of the VDR gene with PC in age- and gender-matched patients and controls. PC (n=91) and healthy control (n=80) samples were genotyped for the FokI (rs2228570) and BsmI (rs1544410) polymorphisms using the PCR and restriction fragment length polymorphism (PCR-RFLP) method. Chi-square analysis was used to test for the overall association of VDR genotype with disease. There was a significant difference in the frequency of genotype FF between the PC patients and controls (Ptrend=0.009); however, the difference in frequency of genotype BB between the two groups was not significant (Ptrend=0.082). The difference between FF and Ff/ff frequency was significant (P=0.002). The two high-risk genotypes were ffbb and Ffbb, with an 11.66- and 6.42-fold increased risk of PC, respectively. VDR gene polymorphisms were important for the development of PC in this study population; however, further exploration of these findings and their implications are required.
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Affiliation(s)
- Lei Li
- Department of Gastroenterology, Shandong Provincial Hospital, Shandong University, Jinan 250021; ; Department of Internal Medicine, Taian City Central Hospital, Taian 271000, P.R. China
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