1
|
Yuan C, Wang J, Zhang W, Yi H, Shu B, Li C, Liang Q, Liang D, Chen B, Xie X, Lin X, Wei X, Wang H, Chen P, Huang C, Xu H, Sun Y, Zhao Y, Shi Q, Tang D, Wang Y. Effects of obesity with reduced 25(OH)D levels on bone health in elderly Chinese people: a nationwide cross-sectional study. Front Immunol 2023; 14:1162175. [PMID: 37180138 PMCID: PMC10172581 DOI: 10.3389/fimmu.2023.1162175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023] Open
Abstract
Background Obesity is often accompanied by lower 25(OH)D levels, whereas these two parameters exhibit opposite effects on bone health. It is uncertain what are the effects of lower 25(OH)D levels in obesity on bone health in elderly Chinese people. Methods A nationally representative cross-sectional analysis of China Community-based Cohort of Osteoporosis (CCCO) was performed from 2016 to 2021, which consisted of 22,081 participants. Demographic data, disease history, Body mass index (BMI), bone mineral density (BMD), the levels of the biomarkers of vitamin D status and those of bone metabolism markers were measured for all participants (N = 22,081). The genes (rs12785878, rs10741657, rs4588, rs7041, rs2282679 and rs6013897) related to 25(OH)D transportation and metabolism were performed in a selected subgroup (N = 6008). Results Obese subjects exhibited lower 25(OH)D levels (p < 0.05) and higher BMD (p < 0.001) compared with those of normal subjects following adjustment. The genotypes and allele frequency of rs12785878, rs10741657, rs6013897, rs2282679, rs4588 and rs7041 indicated no significant differences among three BMI groups following correction by the Bonferroni's method (p > 0.05). The levels of total 25(OH)D (ToVD) were significantly different among the GC1F, GC1S and GC2 haplotype groups (p < 0.05). Correlation analysis indicated that ToVD levels were significantly correlated with parathyroid hormone levels, BMD, risk of osteoporosis (OP) and the concentration levels of other bone metabolism markers (p < 0.05). Generalized varying coefficient models demonstrated that the increasing BMI, ToVD levels and their interactions were positively associated with BMD outcomes (p < 0.001), whereas the reduced levels of ToVD and BMI increased the risk of OP, which was noted notably for the subjects with reduced ToVD levels (less than 20.69 ng/ml) combined with decreased BMI (less than 24.05 kg/m2). Conclusion There was a non-linear interaction of BMI and 25(OH)D. And higher BMI accompanied by decreased 25(OH)D levels is associated with increased BMD and decreased incidence of OP, optimal ranges exist for BMI and 25(OH)D levels. The cutoff value of BMI at approximately 24.05 kg/m2 combined with an approximate value of 25(OH)D at 20.69 ng/ml are beneficial for Chinese elderly subjects.
Collapse
Affiliation(s)
- Chunchun Yuan
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Jing Wang
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
| | - Weiqiang Zhang
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Honggang Yi
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Bing Shu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
| | - Chenguang Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
| | - Qianqian Liang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
| | - De Liang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bolai Chen
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xingwen Xie
- The Second People’s Hospital of Gansu Province, Gansu, Lanzhou, China
- Affiliated Hospital of Northwest University for Nationalities, Gansu, Lanzhou, China
| | - Xinchao Lin
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xu Wei
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hui Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peizhan Chen
- Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Huang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Hao Xu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Yueli Sun
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Yongjian Zhao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Qi Shi
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
| | - Dezhi Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
- *Correspondence: Yongjun Wang, ; Dezhi Tang,
| | - Yongjun Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
- Academic Research Center of Shixiaoshan’ Traumatology, Shanghai, China
- *Correspondence: Yongjun Wang, ; Dezhi Tang,
| |
Collapse
|
2
|
Bennour I, Haroun N, Sicard F, Mounien L, Landrier JF. Vitamin D and Obesity/Adiposity—A Brief Overview of Recent Studies. Nutrients 2022; 14:nu14102049. [PMID: 35631190 PMCID: PMC9143180 DOI: 10.3390/nu14102049] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/12/2022] Open
Abstract
Observational studies classically find an inverse relationship between human plasma 25-hydroxyvitamin D concentration and obesity. However, interventional and genetic studies have failed to provide clear conclusions on the causal effect of vitamin D on obesity/adiposity. Likewise, vitamin D supplementation in obese rodents has mostly failed to improve obesity parameters, whereas several lines of evidence in rodents and prospective studies in humans point to a preventive effect of vitamin D supplementation on the onset of obesity. Recent studies investigating the impact of maternal vitamin D deficiency in women and in rodent models on adipose tissue biology programming in offspring further support a preventive metabolically driven effect of vitamin D sufficiency. The aim of this review is to summarize the state of the knowledge on the relationship between vitamin D and obesity/adiposity in humans and in rodents and the impact of maternal vitamin D deficiency on the metabolic trajectory of the offspring.
Collapse
Affiliation(s)
- Imene Bennour
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
| | - Nicole Haroun
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
| | - Flavie Sicard
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
- PhenoMARS Aix-Marseille Technology Platform, CriBiom, 13000 Marseille, France
| | - Lourdes Mounien
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
- PhenoMARS Aix-Marseille Technology Platform, CriBiom, 13000 Marseille, France
| | - Jean-François Landrier
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
- PhenoMARS Aix-Marseille Technology Platform, CriBiom, 13000 Marseille, France
- Correspondence: ; Tel.: +33-4-9129-4275
| |
Collapse
|
3
|
Setayesh L, Amini A, Bagheri R, Moradi N, Yarizadeh H, Asbaghi O, Casazza K, Yekaninejad MS, Wong A, Suzuki K, Mirzaei K. Elevated Plasma Concentrations of Vitamin D-Binding Protein Are Associated with Lower High-Density Lipoprotein and Higher Fat Mass Index in Overweight and Obese Women. Nutrients 2021; 13:nu13093223. [PMID: 34579103 PMCID: PMC8472481 DOI: 10.3390/nu13093223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/08/2021] [Accepted: 09/15/2021] [Indexed: 12/17/2022] Open
Abstract
(1) Background: Observational studies have established that vitamin D-binding protein (DBP) and 25-hydroxyvitamin D3 (25(OH)D) concentrations are the major factors affecting the bioavailability of 25(OH)D. It has also been shown that poor 25(OH)D bioavailability elevates the risk of obesity and its related cardio-metabolic disorders. However, the relationship between 25(OH)D and DBP concentrations with cardio-metabolic risk factors in overweight and obese cohorts has not been established. Consequently, we evaluated the association between DBP and 25(OH)D concentrations with lipid profile, blood pressure (BP), and body composition in overweight and obese women. (2) Methods: In this cross-sectional study of 236 overweight and obese women, DBP and 25(OH)D concentrations were measured using an enzyme-linked immunosorbent assay. Body composition was assessed via bioelectrical impedance analysis. Lipid profile and BP were assessed by an auto-analyzer and digital BP monitor, respectively. The associations were examined by multivariate logistic regression. (3) Results: The indicated showed an inverse relationship between DBP and high-density lipoprotein (HDL) (p = 0.010) concentrations (where individuals with higher DBP had lower HDL) which, after adjusting for possible cofounders, remained significant (p = 0.006). Moreover, DBP concentration was positively associated with fat mass index (FMI) after adjustment (p = 0.022). No significant relationships were observed among 25(OH)D and target variables. (4) Conclusions: In conclusion, lower concentrations of HDL and higher values of FMI are associated with higher concentrations of DBP in overweight and obese women. These findings present novel awareness regarding the association of DBP with some metabolic and body composition variables in overweight and obese women. However, a two-way causal relationship between DBP and target variables should be considered.
Collapse
Affiliation(s)
- Leila Setayesh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (L.S.); (H.Y.)
| | - Abbas Amini
- Department of Mechanical Engineering, Australian College of Kuwait, Safat 13015, Kuwait;
| | - Reza Bagheri
- Department of Exercise Physiology, University of Isfahan, Isfahan 8174673441, Iran;
| | - Nariman Moradi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj 6617713446, Iran;
| | - Habib Yarizadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (L.S.); (H.Y.)
| | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1416753955, Iran;
| | - Krista Casazza
- Marieb College of Health and Human Services, Florida Gulf Coast University, Fort Myers, FL 33965, USA;
| | - Mir Saeed Yekaninejad
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran 1417613151, Iran;
| | - Alexei Wong
- Department of Health and Human Performance, Marymount University, Arlington, VA 22207, USA;
| | - Katsuhiko Suzuki
- Faculty of Sport Sciences, Waseda University, Tokyo 2-579-15, Japan
- Correspondence: (K.S.); (K.M.)
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (L.S.); (H.Y.)
- Correspondence: (K.S.); (K.M.)
| |
Collapse
|
4
|
Alathari BE, Sabta AA, Kalpana CA, Vimaleswaran KS. Vitamin D pathway-related gene polymorphisms and their association with metabolic diseases: A literature review. J Diabetes Metab Disord 2020; 19:1701-1729. [PMID: 33553043 PMCID: PMC7843833 DOI: 10.1007/s40200-020-00561-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/29/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Given that the relationship between vitamin D status and metabolic diseases such as obesity and type 2 diabetes (T2D) remains unclear, this review will focus on the genetic associations, which are less prone to confounding, between vitamin D-related single nucleotide polymorphisms (SNPs) and metabolic diseases. METHODS A literature search of relevant articles was performed on PubMed up to December 2019. Those articles that had examined the association of vitamin D-related SNPs with obesity and/or T2D were included. Two reviewers independently evaluated the eligibility for the inclusion criteria and extracted the data. In total, 73 articles were included in this review. RESULTS There is a lack of research focusing on the association of vitamin D synthesis-related genes with obesity and T2D; however, the limited available research, although inconsistent, is suggestive of a protective effect on T2D risk. While there are several studies that investigated the vitamin D metabolism-related SNPs, the research focusing on vitamin D activation, catabolism and transport genes is limited. Studies on CYP27B1, CYP24A1 and GC genes demonstrated a lack of association with obesity and T2D in Europeans; however, significant associations with T2D were found in South Asians. VDR gene SNPs have been extensively researched; in particular, the focus has been mainly on BsmI (rs1544410), TaqI (rs731236), ApaI (rs7975232) and FokI (rs2228570) SNPs. Even though the association between VDR SNPs and metabolic diseases remain inconsistent, some positive associations showing potential effects on obesity and T2D in specific ethnic groups were identified. CONCLUSIONS Overall, this literature review suggests that ethnic-specific genetic associations are involved. Further research utilizing large studies is necessary to better understand these ethnic-specific genetic associations between vitamin D deficiency and metabolic diseases.
Collapse
Affiliation(s)
- Buthaina E. Alathari
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP UK
- Department of Food Science and Nutrition, Faculty of Health Sciences, The Public Authority for Applied Education and Training, P.O. Box 14281, AlFaiha , 72853 Kuwait
| | - Aji A. Sabta
- Department of Nutrition, Faculty of Health Sciences, University Alma Ata, Yogyakarta, 55183 Indonesia
- Postgraduate Biomedical Science Department, Faculty of Medicine, Andalas University, West Sumatra , 25172 Indonesia
| | - Chinnappan A. Kalpana
- Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu India
| | - Karani Santhanakrishnan Vimaleswaran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP UK
| |
Collapse
|
5
|
Rozmus D, Ciesielska A, Płomiński J, Grzybowski R, Fiedorowicz E, Kordulewska N, Savelkoul H, Kostyra E, Cieślińska A. Vitamin D Binding Protein (VDBP) and Its Gene Polymorphisms-The Risk of Malignant Tumors and Other Diseases. Int J Mol Sci 2020; 21:E7822. [PMID: 33105665 PMCID: PMC7659952 DOI: 10.3390/ijms21217822] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/17/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
Vitamin D is an important component of the endocrine system that controls calcium homeostasis and bone mineralization. Because of the very short half-life of free serum vitamin D it is stabilized and transported to target tissues by being bound to the vitamin D binding protein (VDBP). The most common polymorphisms: rs4588 and rs7041 in the vitamin D binding protein gene may correlate with differences in vitamin D status in the serum. This review presents data that relate to the presence of genetic variants in the VDBP gene in correlation with certain diseases, mostly concerning cancers (breast, prostate, pancreatic, lung, colorectal, basal cell carcinoma cancer and cutaneous melanoma) or other related diseases (thyroid autoimmunity disorders, obesity, diabetes mellitus, bone metabolism, rheumatoid arthritis, ankylosing spondylitis, asthma, chronic obstructive pulmonary disease, tuberculosis and coronary artery diseases).
Collapse
Affiliation(s)
- Dominika Rozmus
- Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (D.R.); (A.C.); (E.F.); (N.K.); (E.K.)
| | - Alicja Ciesielska
- Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (D.R.); (A.C.); (E.F.); (N.K.); (E.K.)
| | - Janusz Płomiński
- Clinical Department of Trauma-Orthopedic Surgery and Spine Surgery of the Provincial Specialist Hospital in Olsztyn, 10-561 Olsztyn, Poland; (J.P.); (R.G.)
- Department and Clinic of Orthopaedics and Traumatology, Collegium Medicum, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Roman Grzybowski
- Clinical Department of Trauma-Orthopedic Surgery and Spine Surgery of the Provincial Specialist Hospital in Olsztyn, 10-561 Olsztyn, Poland; (J.P.); (R.G.)
- Department and Clinic of Orthopaedics and Traumatology, Collegium Medicum, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Ewa Fiedorowicz
- Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (D.R.); (A.C.); (E.F.); (N.K.); (E.K.)
| | - Natalia Kordulewska
- Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (D.R.); (A.C.); (E.F.); (N.K.); (E.K.)
| | - Huub Savelkoul
- Cell Biology and Immunology Group, Department of Animal Sciences, Wageningen University and Research, 6700 AG Wageningen, The Netherlands;
| | - Elżbieta Kostyra
- Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (D.R.); (A.C.); (E.F.); (N.K.); (E.K.)
| | - Anna Cieślińska
- Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (D.R.); (A.C.); (E.F.); (N.K.); (E.K.)
| |
Collapse
|
6
|
Zhao Y, Wang G, Li Y, Liu X, Liu L, Yang K, Wang C, Wei S. Evaluation of the Associations of GC and CYP2R1 Genes and Gene-Obesity Interactions with Type 2 Diabetes Risk in a Chinese Rural Population. ANNALS OF NUTRITION AND METABOLISM 2020; 76:175-182. [PMID: 32971523 DOI: 10.1159/000508024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 04/17/2020] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Group-specific component (GC) and cytochrome P450 family 2 subfamily R member 1 (CYP2R1) gene polymorphisms and obesity have been associated with an increased risk for development of type 2 diabetes mellitus (T2DM) in Asian populations. OBJECTIVE This study assessed the associations of interactions between GC gene variants and CYP2R1 gene variants and between genes and obesity with T2DM risk. METHODS A study that included 2,271 subjects was performed. Eight single nucleotide polymorphisms in the GC and CYP2R1 genes were genotyped. Interaction analysis was performed using rs7041 in the GC gene and rs1993116 in the CYP2R1 gene. The effects of multiplicative and additive gene-gene and gene-environment interactions on T2DM risk were assessed. RESULTS The T2DM risk was significantly associated with being overweight/obese, abdominal obesity, rs7041, and rs1993116. A significant additive interaction between rs1993116 and rs7041 was associated with T2DM. In addition, there was a significant multiplicative interaction between rs7041 and body mass index (BMI) associated with elevated blood glucose levels, and at a higher BMI (>28.47), the G allele carrier showed a stronger effect than the TT genotype. CONCLUSIONS The interactions between GC rs7041-CYP2R1 rs1993116 and GC rs7041-BMI may explain the mechanisms by which these factors increase the risk of T2DM development.
Collapse
Affiliation(s)
- Yanting Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gaoshuai Wang
- Department of Hospital Infection Control, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuqian Li
- Department of Clinical Pharmacology, School of Pharmaceutical Science, Zhengzhou University, Zhengzhou, China
| | - Xiaotian Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Li Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kaili Yang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Sheng Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,
| |
Collapse
|
7
|
Bakos B, Szili B, Szabó B, Horváth P, Kirschner G, Kósa JP, Toldy E, Lakatos P, Tabák ÁG, Takács I. Genetic variants of VDR and CYP2R1 affect BMI independently of serum vitamin D concentrations. BMC MEDICAL GENETICS 2020; 21:129. [PMID: 32534577 PMCID: PMC7293123 DOI: 10.1186/s12881-020-01065-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 06/05/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Vitamin D metabolism and obesity have been linked by several studies, however the reason for this association is unclear. Our objective was to investigate potential correlations between genetic variants in key enzymes of vitamin D metabolism and the body mass index on a representative and random sample of Hungarian adults. METHODS Altogether 462 severely vitamin D deficient individuals were studied at the end of winter in order to decrease environmental and maximize any relevant genetic effect. Furthermore, participants with lifestyle factors known to affect vitamin D homeostasis were also excluded. We selected 23 target SNPs in five genes that encode key proteins of vitamin D metabolism (NADSYN1, GC, CYP24A1, CYP2R1, VDR). RESULTS Variants in 2 genetic polymorphisms; rs2853564 (VDR) and rs11023374 (CYP2R1) showed a significant association with participants' BMI. These associations survived further adjustment for total-, free-, or bioactive-25(OH) vitamin D levels, although the variance explained by these 2 SNPS in BMI heterogeneity was only 3.2%. CONCLUSION Our results show two novel examples of the relationship between genetics of vitamin D and BMI, highlighting the potential role of vitamin D hormone in the physiology of obesity.
Collapse
Affiliation(s)
- Bence Bakos
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary.
| | - Balázs Szili
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary
| | - Boglárka Szabó
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary
| | - Péter Horváth
- Department of Pulmonology, Semmelweis University Faculty of Medicine, Budapest, Hungary
| | - Gyöngyi Kirschner
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary
| | - János P Kósa
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary
| | - Erzsébet Toldy
- Clinical Chemistry and Immunology Laboratories, SYNLAB Diagnostic Centre, Budapest, Hungary
| | - Péter Lakatos
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary
| | - Ádám G Tabák
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary.,Department of Epidemiology and Public Health, University College London, London, UK.,Department of Public Health, Semmelweis University Faculty of Medicine, Budapest, Hungary
| | - István Takács
- Department of Internal Medicine and Oncology, Semmelweis University Faculty of Medicine, 1098 Korányi S. u. 2/a, Budapest, Hungary
| |
Collapse
|
8
|
Chiang JM, Stanczyk FZ, Kanaya AM. Vitamin D Levels, Body Composition, and Metabolic Factors in Asian Indians: Results from the Metabolic Syndrome and Atherosclerosis in South Asians Living in America Pilot Study. ANNALS OF NUTRITION AND METABOLISM 2018. [PMID: 29518767 DOI: 10.1159/000487272] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND/AIMS Asian Indians have a high prevalence of vitamin D deficiency and metabolic syndrome. Vitamin D deficiency is associated with an increased risk of cardiovascular disease and diabetes. METHODS We performed a cross-sectional study of 150 Asian Indians (50% male) from the San Francisco Bay Area. We assessed the association between 25-OH vitamin D (25-OHD) levels and vitamin D deficiency with body composition (anthropometric and radiographic measures) and metabolic outcomes. RESULTS In both men and women, the presence of vitamin D deficiency was associated with higher systolic (p = 0.004) and diastolic (p = 0.01) blood pressure, and fasting glucose (p = 0.01). Only in women, vitamin D deficiency status was associated with higher body mass index (BMI), waist-to-hip ratio, visceral fat area, and hepatic fat content after adjusting for age, income, and physical activity level. In women, 25-OHD was also associated with fasting glucose after adjusting for age, income, and physical activity and further adjusting for BMI and waist circumference (β -2.1, 95% CI -0.86 to -0.01, p = 0.04). This association between vitamin D deficiency and metabolic parameters was not significant in men. CONCLUSIONS A lower level of 25-OHD and vitamin D deficiency were associated with higher levels of metabolic factors among Asian Indians. Our findings suggest that 25-OHD metabolism may differ by the distribution of adipose tissue and involve previously unexplored pathways accounting for the variability in the role of vitamin D in cardiovascular disease.
Collapse
Affiliation(s)
- Janet M Chiang
- Division of Endocrinology, University of California, San Francisco, California, USA
| | - Frank Z Stanczyk
- Division of Reproductive Endocrinology, Keck School of Medicine, Los Angeles, California, USA
| | - Alka M Kanaya
- Division of General Internal Medicine, University of California, San Francisco, California, USA
| |
Collapse
|
9
|
Karuwanarint P, Phonrat B, Tungtrongchitr A, Suriyaprom K, Chuengsamarn S, Schweigert FJ, Tungtrongchitr R. Vitamin D-binding protein and its polymorphisms as a predictor for metabolic syndrome. Biomark Med 2018; 12:465-473. [PMID: 29504805 DOI: 10.2217/bmm-2018-0029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM To investigate the relationship of vitamin D-binding protein (GC) and genetic variation of GC (rs4588, rs7041 and rs2282679) with metabolic syndrome (MetS) in the Thai population. MATERIALS & METHODS GC-globulin concentrations were measured by quantitative western blot analysis in 401 adults. All participants were genotyped using TaqMan allelic discrimination assays. RESULTS GC-globulin levels were significatly lower in MetS subjects than in control subjects, in which significant negative correlations of GC-globulin levels with systolic blood pressure, glucose and age were found. Male participants who carried the GT genotype for rs4588 showed an increased risk of MetS compared with the GG wild-type (odds ratio: 3.25; p = 0.004). CONCLUSION GC-globulin concentrations and variation in GC rs4588 were supported as a risk factor for MetS in Thais.
Collapse
Affiliation(s)
- Piyaporn Karuwanarint
- Department of Tropical Nutrition & Food Science, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Benjaluck Phonrat
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Anchalee Tungtrongchitr
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kanjana Suriyaprom
- Faculty of Medical Technology, Rangsit University, Pathumthani, Thailand
| | - Somlak Chuengsamarn
- Division of Endocrinology & Metabolism, Faculty of Medicine, HRH Princess Maha Chakri Sirindhorn Medical Center Srinakharinwirot University, Nakornnayok, Thailand
| | - Florian J Schweigert
- Institute of Nutrition Science, Department of Physiology & Pathophysiology of Nutrition, University of Potsdam, Germany
| | - Rungsunn Tungtrongchitr
- Department of Tropical Nutrition & Food Science, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| |
Collapse
|
10
|
Lupoli R, Lembo E, Saldalamacchia G, Avola CK, Angrisani L, Capaldo B. Bariatric surgery and long-term nutritional issues. World J Diabetes 2017; 8:464-474. [PMID: 29204255 PMCID: PMC5700383 DOI: 10.4239/wjd.v8.i11.464] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 08/11/2017] [Accepted: 09/04/2017] [Indexed: 02/05/2023] Open
Abstract
Bariatric surgery is recognized as a highly effective therapy for obesity since it accomplishes sustained weight loss, reduction of obesity-related comorbidities and mortality, and improvement of quality of life. Overall, bariatric surgery is associated with a 42% reduction of the cardiovascular risk and 30% reduction of all-cause mortality. This review focuses on some nutritional consequences that can occur in bariatric patients that could potentially hinder the clinical benefits of this therapeutic option. All bariatric procedures, to variable degrees, alter the anatomy and physiology of the gastrointestinal tract; this alteration makes these patients more susceptible to developing nutritional complications, namely, deficiencies of macro- and micro-nutrients, which could lead to disabling diseases such as anemia, osteoporosis, protein malnutrition. Of note is the evidence that most obese patients present a number of nutritional deficits already prior to surgery, the most important being vitamin D and iron deficiencies. This finding prompts the need for a complete nutritional assessment and, eventually, an adequate correction of pre-existing deficits before surgery. Another critical issue that follows bariatric surgery is post-operative weight regain, which is commonly associated with the relapse of obesity-related co-morbidities. Nu-tritional complications associated with bariatric surgery can be prevented by life-long nutritional monitoring with the administration of multi-vitamins and mineral supplements according to the patient's needs.
Collapse
Affiliation(s)
- Roberta Lupoli
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| | - Erminia Lembo
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| | - Gennaro Saldalamacchia
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| | - Claudia Kesia Avola
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| | - Luigi Angrisani
- Department of Public Health, Federico II University, 80131 Naples, Italy
| | - Brunella Capaldo
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| |
Collapse
|
11
|
Abstract
BACKGROUND Bariatric patients regularly present with insufficient vitamin D status before and after surgery, which requires substantial supplementation to treat. This review aims to assess the effect of sleeve gastrectomy on vitamin D status and the effectiveness of vitamin D supplementation. METHODS This review was conducted in accordance with the Guidelines for Meta-Analyses and Systematic Reviews of Observational Studies. RESULTS The current guidelines recommend initial vitamin D supplementation of at least 3000 IU/day post-operatively, with no need for follow-up testing after sleeve gastrectomy. Only one study has trialled a dose in line with the recommendations for this patient group. They found that it was effective in improving VitD status. CONCLUSIONS On-going monitoring of vitamin D status is necessary, as the recommended level is not often reached.
Collapse
|
12
|
Association between gene polymorphisms and obesity and physical fitness in Korean children. Biol Sport 2017; 35:21-27. [PMID: 30237658 PMCID: PMC6135971 DOI: 10.5114/biolsport.2018.70748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 03/29/2017] [Accepted: 07/15/2017] [Indexed: 12/26/2022] Open
Abstract
Obesity is affected by genetic factors and environmental influences. This research was undertaken to identify single nucleotide polymorphisms (SNPs) related to obesity and physical fitness and then to analyse and compare interactions between physical fitness and obesity-associated genotypes. To investigate relationships between physical fitness and major SNPs previously reported to be related to obesity, 68 SNPs in 32 genes were genotyped in 71 Korean children. Tests were conducted to evaluate five elements of physical fitness (speed, aerobic endurance, muscular endurance, muscular strength, and flexibility). The results obtained showed significant (P<0.02) differences in physical fitness scores for the following genotypes: CNR1 (rs1049353; GG), LEP (rs7799039; AA+AG), HHEX (rs1111875; TT), GC (rs16847015; TG+GG), LRP5 (rs4988300; GG+GT), NPY2R (rs2880415; CT+CC), PPY (rs231472; GG), UCP2 (rs660339; CT+TT), CDKN2B (rs10811661; AA+AG), and ADIPOQ (rs266729; CG+GG). Ten physical fitness-related genotypes were newly identified during the present study. This study suggests that classification of genotypes by physical fitness level could be used as an index for predicting the risk of obesity and for selecting individuals for intervention programmes. Furthermore, the study shows that even children participating in the same physical fitness improvement programme can exhibit different genotype dependencies.
Collapse
|
13
|
Kosteria I, Tsangaris GT, Gkourogianni A, Anagnostopoulos A, Papadopoulou A, Papassotiriou I, Loutradis D, Chrousos GP, Kanaka-Gantenbein C. Proteomics of Children Born After Intracytoplasmic Sperm Injection Reveal Indices of an Adverse Cardiometabolic Profile. J Endocr Soc 2017; 1:288-301. [PMID: 29264487 PMCID: PMC5686695 DOI: 10.1210/js.2016-1052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 02/22/2017] [Indexed: 12/13/2022] Open
Abstract
CONTEXT Assisted reproduction technologies (ART), classic in vitro fertilization (IVF), and intracytoplasmic sperm injection (ICSI) are increasingly used. Several studies have demonstrated an unfavorable cardiometabolic profile of the ART offspring. Proteomics is a state-of-the-art technology used for the identification of early biomarkers of disease. OBJECTIVES To investigate the proteomic profile of children born after ICSI compared with naturally conceived (NC) controls in search of cardiometabolic risk markers. DESIGN Cross-sectional case-control study: qualitative, comparative proteomic plasma analysis. SETTING Pediatric Endocrinology and IVF Outpatient Clinics, University of Athens and the Biomedical Research Foundation of the Academy of Athens. PARTICIPANTS Forty-two sex- and age-matched couples of ICSI and NC children were assessed. Ten pairs additionally matched for birth weight and twin/single pregnancies were submitted to proteomic analysis. INTERVENTION Medical history, clinical examination, and blood biochemical, hormonal, and proteomic analyses. MAIN OUTCOME MEASURES (1) Differences in auxological and laboratory data between groups. (2) Differences in plasma proteomic profile in 10 individual pairs and pooled samples. RESULTS The ICSI group had shorter gestation, more cesarean sections, smaller birth weight/length, and advanced maternal age. No major differences were observed regarding biochemical markers. Proteomic analysis revealed 19 over- and three underexpressed proteins in ICSI. Most overexpressed proteins are implicated in acute-phase reaction, blood coagulation, complement pathway activation, and iron and lipid metabolism, suggesting a subclinical unfavorable cardiometabolic profile. CONCLUSIONS This study applies proteomics in ICSI-conceived children, providing evidence for an early adverse cardiometabolic profile and supporting the necessity of their long-term monitoring.
Collapse
Affiliation(s)
- Ioanna Kosteria
- Division of Endocrinology, Metabolism, and Diabetes, First Department of Pediatrics, and
| | - George Th Tsangaris
- Proteomics Research Unit, Biomedical Research Foundation of Academy of Athens, Athens 11527, Greece
| | - Alexandra Gkourogianni
- Division of Endocrinology, Metabolism, and Diabetes, First Department of Pediatrics, and
| | | | - Aggeliki Papadopoulou
- Proteomics Research Unit, Biomedical Research Foundation of Academy of Athens, Athens 11527, Greece
| | - Ioannis Papassotiriou
- Department of Clinical Biochemistry, Aghia Sophia Children's Hospital, Athens 11527, Greece
| | - Dimitrios Loutradis
- Division of In Vitro Fertilization, First Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Athens 11528, Greece
| | - George P Chrousos
- Division of Endocrinology, Metabolism, and Diabetes, First Department of Pediatrics, and
| | | |
Collapse
|
14
|
Grave N, Tovo-Rodrigues L, da Silveira J, Rovaris DL, Dal Bosco SM, Contini V, Genro JP. A vitamin D pathway gene-gene interaction affects low-density lipoprotein cholesterol levels. J Nutr Biochem 2016; 38:12-17. [PMID: 27721113 DOI: 10.1016/j.jnutbio.2016.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/01/2016] [Accepted: 08/10/2016] [Indexed: 01/06/2023]
Abstract
Much evidence suggests an association between vitamin D deficiency and chronic diseases such as obesity and dyslipidemia. Although genetic factors play an important role in the etiology of these diseases, only a few studies have investigated the relationship between vitamin D-related genes and anthropometric and lipid profiles. The aim of this study was to investigate the association of three vitamin D-related genes with anthropometric and lipid parameters in 542 adult individuals. We analyzed the rs2228570 polymorphism in the vitamin D receptor gene (VDR), rs2134095 in the retinoid X receptor gamma gene (RXRG) and rs7041 in the vitamin D-binding protein gene (GC). Polymorphisms were genotyped by TaqMan allelic discrimination. Gene-gene interactions were evaluated by the general linear model. The functionality of the polymorphisms was investigated using the following predictors and databases: SIFT (Sorting Intolerant from Tolerant), PolyPhen-2 (Polymorphism Phenotyping v2) and Human Splicing Finder 3. We identified a significant effect of the interaction between RXRG (rs2134095) and GC (rs7041) on low-density lipoprotein cholesterol (LDL-c) levels (P=.005). Furthermore, our in silico analysis suggested a functional role for both variants in the regulation of the gene products. Our results suggest that the vitamin D-related genes RXRG and GC affect LDL-c levels. These findings are in agreement with other studies that consistently associate vitamin D and lipid profile. Together, our results corroborate the idea that analyzing gene-gene interaction would be helpful to clarify the genetic component of lipid profile.
Collapse
Affiliation(s)
- Nathália Grave
- Programa de Pós-Graduação em Biotecnologia, Centro Universitário UNIVATES, 95900-000, Lajeado, RS, Brazil
| | - Luciana Tovo-Rodrigues
- Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, 96020-220, Pelotas, RS, Brazil
| | - Janaína da Silveira
- Programa de Pós-Graduação em Biotecnologia, Centro Universitário UNIVATES, 95900-000, Lajeado, RS, Brazil
| | - Diego Luiz Rovaris
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil
| | - Simone Morelo Dal Bosco
- Programa de Pós-Graduação em Biotecnologia, Centro Universitário UNIVATES, 95900-000, Lajeado, RS, Brazil
| | - Verônica Contini
- Programa de Pós-Graduação em Biotecnologia, Centro Universitário UNIVATES, 95900-000, Lajeado, RS, Brazil; Setor de Genética e Biologia Molecular do Museu de Ciências Naturais, Centro de Ciências Biológicas e da Saúde, Centro Universitário UNIVATES, 95900-000, Lajeado, RS, Brazil
| | - Júlia Pasqualini Genro
- Programa de Pós-Graduação em Biotecnologia, Centro Universitário UNIVATES, 95900-000, Lajeado, RS, Brazil; Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, 90050-170, Porto Alegre, RS, Brazil.
| |
Collapse
|
15
|
Wang B, Yang Q, Harris CL, Nelson ML, Busboom JR, Zhu MJ, Du M. Nutrigenomic regulation of adipose tissue development - role of retinoic acid: A review. Meat Sci 2016; 120:100-106. [PMID: 27086067 DOI: 10.1016/j.meatsci.2016.04.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 04/02/2016] [Accepted: 04/05/2016] [Indexed: 12/17/2022]
Abstract
To improve the efficiency of animal production, livestock have been extensively selected or managed to reduce fat accumulation and increase lean growth, which reduces intramuscular or marbling fat content. To enhance marbling, a better understanding of the mechanisms regulating adipogenesis is needed. Vitamin A has recently been shown to have a profound impact on all stages of adipogenesis. Retinoic acid, an active metabolite of vitamin A, activates both retinoic acid receptors (RAR) and retinoid X receptors (RXR), inducing epigenetic changes in key regulatory genes governing adipogenesis. Additionally, Vitamin D and folates interact with the retinoic acid receptors to regulate adipogenesis. In this review, we discuss nutritional regulation of adipogenesis, focusing on retinoic acid and its impact on epigenetic modifications of key adipogenic genes.
Collapse
Affiliation(s)
- Bo Wang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Qiyuan Yang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Corrine L Harris
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Mark L Nelson
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Jan R Busboom
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, United States
| | - Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States.
| |
Collapse
|
16
|
Almesri N, Das NS, Ali ME, Gumaa K, Giha HA. Independent associations of polymorphisms in vitamin D binding protein (GC) and vitamin D receptor (VDR) genes with obesity and plasma 25OHD3 levels demonstrate sex dimorphism. Appl Physiol Nutr Metab 2015; 41:345-53. [PMID: 26881316 DOI: 10.1139/apnm-2015-0284] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We investigated a possible association between polymorphisms in vitamin D binding protein (GC) and vitamin D receptor (VDR) genes and obesity in Bahraini adults. For this purpose, 406 subjects with varying body mass indexes (BMIs) were selected. Plasma levels of 25-hydroxyvitamin D3 (25OHD3) were measured by chemiluminescence immunoassay. Six single nucleotide polymorphisms, 2 in the VDR gene (rs731236 TC and rs12721377 AG) and 4 in the GC gene (rs2282679 AC, rs4588 CA, rs7041 GT, and rs2298849 TC), were genotyped by real-time polymerase chain reaction. We found that the rs7041 minor allele (G) and rare genotype (GG) were associated with higher BMI (p = 0.007 and p = 0.012, respectively), but they did not influence 25OHD3 levels. However, the minor alleles of rs2282679 (A) and rs4588 (C) were associated with low 25OHD3 plasma levels (p = 0.039 and p = 0.021, respectively), but not with BMI. Having categorized the subjects based on their sex, we found that (i) rs7041 GG associated with high BMI in females (p = 0.003), (ii) rs4588 CC associated with high BMI in females (p = 0.034) and low 25OHD3 levels in males (p = 0.009), and (iii) rs12721377 AA associated with low 25OHD3 levels in females (p = 0.039). Notably, none of the common haplotypes (6 in the GC gene and 3 in the VDR gene) were associated with BMI. Therefore, polymorphisms in the GC (rs2282679, rs4588, rs7041) and VDR (rs12721377) genes were independently associated with obesity and 25OHD3 levels with a clear sex dimorphism.
Collapse
Affiliation(s)
- Norah Almesri
- a Department of Biochemistry, College of Medicine and Medical Sciences (CMMS), Arabian Gulf University (AGU), PO Box 26671, Manama, Bahrain
| | - Nagalla S Das
- b Clinical Chemistry Laboratory, Salmaniya Medical Complex (SMC), Manama, Kingdom of Bahrain
| | - Muhallab E Ali
- a Department of Biochemistry, College of Medicine and Medical Sciences (CMMS), Arabian Gulf University (AGU), PO Box 26671, Manama, Bahrain
| | - Khalid Gumaa
- c Division of Biosciences - Cell and Developmental Biology, University College London (UCL), London, UK
| | - Hayder Ahmed Giha
- a Department of Biochemistry, College of Medicine and Medical Sciences (CMMS), Arabian Gulf University (AGU), PO Box 26671, Manama, Bahrain
| |
Collapse
|
17
|
Pop LC, Shapses SA, Chang B, Sun W, Wang X. VITAMIN D-BINDING PROTEIN IN HEALTHY PRE- AND POSTMENOPAUSAL WOMEN: RELATIONSHIP WITH ESTRADIOL CONCENTRATIONS. Endocr Pract 2015; 21:936-42. [PMID: 26121448 DOI: 10.4158/ep15623.or] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To examine the relationship between endogenous serum estradiol and vitamin D-binding protein (DBP) and total, free, and bioavailable 25-hydroxyvitamin D (25OHD) concentrations in pre- and postmenopausal women. METHODS In 165 healthy women (ages, 26 to 75 years) not taking any form of exogenous estrogen, the serum concentrations of estradiol, 25OHD, DBP, parathyroid hormone, and albumin were measured. Free and bioavailable 25OHD (free + albumin-bound) levels were calculated from total 25OHD, DBP, and serum albumin levels. RESULTS Premenopausal women had higher serum 25OHD (31.5 ± 7.9 ng/mL), DBP (45.3 ± 6.2 mg/dL), and estradiol (52.8 ± 35.0 pg/mL) levels than postmenopausal women (26.5 ± 4.9 ng/mL, 41.7 ± 5.7 mg/dL, and 12.9 ± 4.9 pg/mL), respectively. In addition, the calculated free and bioavailable 25OHD levels were higher in pre- than postmenopausal women (P<.05). Serum estradiol correlated with DBP (r = 0.22; P<.01) and total 25OHD (r = 0.27; P<.01). In multivariate regression models (with or without serum 25OHD), estradiol was independently associated with DBP (P<.05). CONCLUSION Lower estradiol level is one of the factors that contribute to lower DBP levels in older women. Our data indicate that besides well-known factors such as age, gender, and race, serum estradiol concentrations are also a physiologic predictor of DBP concentration.
Collapse
|
18
|
Wang L, Chu A, Buring JE, Ridker PM, Chasman DI, Sesso HD. Common genetic variations in the vitamin D pathway in relation to blood pressure. Am J Hypertens 2014; 27:1387-95. [PMID: 24688000 DOI: 10.1093/ajh/hpu049] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Vitamin D is involved in blood pressure (BP) regulation. Genetic variations may influence the effect of vitamin D on BP, but data from epidemiologic studies remain inconsistent. METHODS We conducted a comprehensive genetic association study in the Women's Genome Health Study (WGHS) with genome-wide genotype data among 23,294 women of European ancestry and in the International Consortium of Blood Pressure (ICBP) with genome-wide meta-analysis results from 69,395 men and women of European ancestry. RESULTS First, we found none of 5 selected vitamin D-related candidate single nucleotide polymorphisms (SNPs) was associated with systolic BP (SBP) or diastolic BP (DBP). Second, in 61 candidate SNPs involved in vitamin D metabolism and signaling, rs1507023 (in RBFOX1) and rs2296241 (in CYP24A1) showed significant associations with SBP, DBP, mean arterial pressure, or pulse pressure in the WGHS before, but not after, multiple testing corrections. Nominally significant associations in the ICBP were also not significant after corrections. Third, among 24 candidate genes across vitamin D pathway, associations with BP traits that meet gene-wide significance level were found for NCOA3 (rs2235734), RXRA (rs875444), DHCR7 (rs1790370), VDR (rs2544037), and NCOR2 (rs1243733, rs1147289) in the WGHS and NCOR1, TP53BP1, and TYRP1 in the ICBP. However, none of these associations reached significance threshold in both studies. CONCLUSIONS Our study did not replicate previously observed associations of vitamin D-related SNPs with BP. There was suggestive evidence for associations in other vitamin D pathway genes; however, these associations either did not reach the significance threshold or were not replicated.
Collapse
Affiliation(s)
- Lu Wang
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts;
| | - Audrey Chu
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | | | - Paul M Ridker
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts; Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Daniel I Chasman
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | | |
Collapse
|
19
|
Foucan L, Vélayoudom-Céphise FL, Larifla L, Armand C, Deloumeaux J, Fagour C, Plumasseau J, Portlis ML, Liu L, Bonnet F, Ducros J. Polymorphisms in GC and NADSYN1 Genes are associated with vitamin D status and metabolic profile in Non-diabetic adults. BMC Endocr Disord 2013; 13:36. [PMID: 24073860 PMCID: PMC3849583 DOI: 10.1186/1472-6823-13-36] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 09/26/2013] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Our aim was to assess the associations between vitamin D (vitD) status, metabolic profile and polymorphisms in genes involved in the transport (Group-Component: GC) and the hydroxylation (NAD synthetase 1: NADSYN1) of 25 hydroxyvitamin D (25(OH)D) in non-diabetic individuals. METHODS We conducted a cross-sectional study with 323 individuals recruited from the Health Center of Guadeloupe, France. The rs2282679 T > G and rs2298849 T > C in GC and rs12785878 G > T in NADSYN1 were genotyped. RESULTS Mean age was 46(range 18-86) years. 57% of participants had vitD insufficiency, 8% had vitD deficiency, 61% were overweight and 58% had dyslipidemia. A higher frequency of overweight was noted in women carrying rs2298849T allele v CC carriers (71% v 50%; P = 0.035). The rs2282679G allele was associated with increased risks of vitD deficiency and vitD insufficiency (OR =3.53, P = 0.008, OR = 2.34, P = 0.02 respectively). The rs2298849 TT genotype was associated with vitD deficiency and overweight (OR =3.4, P = 0.004 and OR = 1.76, P = 0.04 respectively) and the rs12785878 GG genotype with vitD insufficiency and dyslipidemia (OR = 1.80, P = 0.01 and OR = 1.72, P = 0.03 respectively). Based on the number of risk alleles for rs2282679 and rs12785878 combined, a genotype score of 3 (vs. 0-1) was associated with a 5.5 ng/mL average reduction in serum 25(OH)D levels (P = 0.001). CONCLUSIONS The GC and NADSYN1 genes are associated with the vitamin D status and might contribute to dyslipidemia and overweight independently of 25(OH)D levels.
Collapse
Affiliation(s)
- Lydia Foucan
- Research group Clinical Epidemiology and MedicineResearch group, University of Antilles and Guyane, Guyane, France
- Department of Public Health and Medical Information, University Hospital of Pointe-à-Pitre, Guadeloupe, France
- Département de Santé Publique, CHU de Pointe-à-Pitre, 97159 Pointe-à-Pitre, Guadeloupe, France
| | - Fritz-Line Vélayoudom-Céphise
- Research group Clinical Epidemiology and MedicineResearch group, University of Antilles and Guyane, Guyane, France
- Diabetology Unit, University Hospital of Pointe-à-Pitre, Guadeloupe, France
| | - Laurent Larifla
- Research group Clinical Epidemiology and MedicineResearch group, University of Antilles and Guyane, Guyane, France
| | - Christophe Armand
- Research group Clinical Epidemiology and MedicineResearch group, University of Antilles and Guyane, Guyane, France
| | - Jacqueline Deloumeaux
- Research group Clinical Epidemiology and MedicineResearch group, University of Antilles and Guyane, Guyane, France
| | - Cedric Fagour
- Research group Clinical Epidemiology and MedicineResearch group, University of Antilles and Guyane, Guyane, France
| | | | - Marie-Line Portlis
- Clinical Genetic Unit, University Hospital of Pointe-à-Pitre, Guadeloupe, France
| | - Longjian Liu
- Department of Epidemiology and Biostatistics, Drexel University School of Public Health, Philadelphia, PA, USA
| | - Fabrice Bonnet
- Endocrinology-Diabetology and nutrition Unit, University Hospital South of Rennes, Rennes, France
| | - Jacques Ducros
- Nephrology Unit, University Hospital of Pointe-à-Pitre, Guadeloupe, France
| |
Collapse
|
20
|
Manickam B, Neagu V, Kukreja SC, Barengolts E. Relationship between glycated hemoglobin and circulating 25-hydroxyvitamin D concentration in African American and Caucasian American men. Endocr Pract 2013. [PMID: 23186960 DOI: 10.4158/ep12168.or] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To examine whether (1) serum 25-hydroxyvitamin D level (25[OH]D) is a risk factor for hyperglycemia, as assessed by glycated hemoglobin (HbA1c), in African American men (AAM) and (2) 25(OH)D is a predictor of HbA1c in AAM and Caucasian American men (CAM). METHODS We prospectively assessed 25(OH)D and HbA1c in 1,074 men, outpatients with and without diabetes, at an urban Veteran Administration Medical Center (66.8% AAM, 26.4% CAM, 6% Hispanic, 0.4% Asian, and 0.4% Native American men). Multivariate regression analyzed the determinants of HbA1c after accounting for potential confounders. RESULTS We found high prevalence of low (< 30 ng/mL) 25(OH)D (81%) and elevated (≥5.7%) HbA1c (53.5%). The 25(OH)D was inversely associated with HbA1c in all men (r = -0.12, P<.001), in AAM (r = -0.11, P = .003), and in CAM (r = -0.15, P = .01). In the entire group the independent determinants of HbA1c included body mass index (BMI), age, 25(OH)D levels, systolic blood pressure (BP), triglycerides, high-density lipoprotein (HDL), and current alcohol use (P<.0001, .013, .009, .01, .008, .034, and .048, respectively) while glomerular filtration rate (GFR) and marital status showed borderline significance (P = .08 and .09, respectively). In AAM these determinants included BMI, 25(OH)D levels, systolic BP, and current alcohol use (P<.0001, .01, .02, and .03, respectively), while age had borderline significance (P = .06). In CAM, these included BMI, age, and triglycerides (P = .01, .03, and .004, respectively) but not 25(OH)D levels (P = .50). CONCLUSION Circulating low 25(OH)D is a risk factor for hyperglycemia, as assessed by HbA1c, in AAM. The 25(OH)D level is an independent determinant of HbA1c in AAM, but not in CAM, including men with and without diabetes.
Collapse
Affiliation(s)
- Buvana Manickam
- Section of Endocrinology and Metabolism, Department of Medicine, Jesse Brown VA and Section of Endocrinology and Metabolism, Department of Medicine, University of Illinois Medical Centers, Chicago, IL 60612, USA
| | | | | | | |
Collapse
|
21
|
Shapses SA, Lee EJ, Sukumar D, Durazo-Arvizu R, Schneider SH. The effect of obesity on the relationship between serum parathyroid hormone and 25-hydroxyvitamin D in women. J Clin Endocrinol Metab 2013; 98:E886-90. [PMID: 23509103 PMCID: PMC3644609 DOI: 10.1210/jc.2012-3369] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
CONTEXT Obesity is associated with lower serum concentrations of 25-hydroxyvitamin D (25OHD) and higher intact PTH. The threshold of 25OHD needed to maximally suppress intact PTH has been suggested as a marker of optimal vitamin D status. OBJECTIVE In this study, we hypothesized that whereas the obese have a higher serum PTH and lower 25OHD, suppression of serum PTH by 25OHD would be independent of body weight. DESIGN, SETTING, AND PARTICIPANTS We performed a retrospective analysis on 383 women (ages 24-75 y) with a wide range of body weights (43-185 kg) who were stabilized to 1-1.2 g calcium/d for 1 month before blood draw. Body composition, serum PTH, 25OHD, calcium, and creatinine were measured. Locally weighted regression and smoothing scatterplots were used to depict the association between serum PTH and 25OHD. A nonlinear exponential model determined the point for near maximal suppression of PTH by 25OHD. RESULTS The point for near maximal suppression of PTH by 25OHD for all women (body mass index, 31.4 ± 7.7 kg/m²) occurred at a 25OHD concentration of 21.7 ng/mL (95% confidence interval, 28-48 ng/mL). No point of maximal suppression was found for nonobese women, yet in the obese women (n = 207; body mass index, >30 kg/m²) suppression of PTH occurred at a 25OHD concentration of 11.1 ng/mL (95% confidence interval, 4.7-17.5 ng/mL). CONCLUSIONS These results suggest that if PTH is suppressed at a lower serum 25OHD in the obese compared to the entire population, the lower average 25OHD concentrations in the obese may not have the same physiological significance as in the general population.
Collapse
Affiliation(s)
- Sue A Shapses
- Department of Nutritional Sciences, Rutgers University, New Brunswick, New Jersey 08901-8525, USA.
| | | | | | | | | |
Collapse
|
22
|
Karlsson T, Osmancevic A, Jansson N, Hulthén L, Holmäng A, Larsson I. Increased vitamin D-binding protein and decreased free 25(OH)D in obese women of reproductive age. Eur J Nutr 2013; 53:259-67. [PMID: 23604494 DOI: 10.1007/s00394-013-0524-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 04/10/2013] [Indexed: 12/17/2022]
Abstract
PURPOSE Obese subjects have lower circulating 25-hydroxyvitamin D (25(OH)D) than normal-weight subjects. Knowledge is scarce regarding differences in vitamin D-binding protein (DBP), free 25(OH)D, and intake of vitamin D between normal-weight and obese subjects. The purpose of this study was to examine intake and vitamin D status in obese compared with normal-weight women. METHODS Between September 2009 and October 2011, 43 obese and 43 normal-weight women, 22-45 years of age, mean BMI of 39.1 ± 4.6 and 21.6 ± 1.8 kg/m(2), respectively, were recruited in the western Sweden region (latitude 57°N). Blood samples, data regarding diet, and sun exposure were collected. RESULTS DBP concentrations were 320 ± 121 and 266 ± 104 μg/mL (P = 0.02) in obese and normal-weight women, respectively. Calculated free 25(OH)D was 13.3 ± 5.5 (obese) and 23.7 ± 10.7 (normal-weight) (P < 0.001). The obese women had a 20.1 nmol/L lower mean 25(HO)D concentration compared to normal-weight women (P < 0.001). 56 % of obese women and 12 % of normal-weight women had 25(OH)D concentrations ≤50 nmol/L. There was no statistically significant difference in total vitamin D intake between the groups. 39 % of the women had a total vitamin D intake <7.5 μg/day, the current national recommendation for vitamin D in Sweden. CONCLUSIONS Obese women had higher DBP concentrations compared with normal-weight women and lower free 25(OH)D. The obese women were more likely to have 25(OH)D concentrations that could be considered suboptimal. Vitamin D intake was generally low in normal-weight and obese women of childbearing age.
Collapse
Affiliation(s)
- Therese Karlsson
- Department of Physiology, Institute of Neuroscience and Physiology, University of Gothenburg, P.O. Box 432, 405 30, Göteborg, Sweden,
| | | | | | | | | | | |
Collapse
|
23
|
Genetic association analysis of vitamin D pathway with obesity traits. Int J Obes (Lond) 2013; 37:1399-406. [PMID: 23381556 PMCID: PMC3763965 DOI: 10.1038/ijo.2013.6] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 12/12/2012] [Accepted: 12/19/2012] [Indexed: 12/24/2022]
Abstract
Objective Observational studies have examined the link between vitamin D deficiency and obesity traits. Some studies have reported associations between vitamin D pathway genes such as VDR, GC and CYP27B1 with body mass index (BMI) and waist circumference (WC); however, the findings have been inconsistent. Hence, we investigated the involvement of vitamin D metabolic pathway genes in obesity-related traits in a large population-based study. Methods We undertook a comprehensive analysis between 100 tagging polymorphisms (tagSNPs) in genes encoding for DHCR7, CYP2R1, VDBP, CYP27B1, CYP27A1, CYP24A1, VDR and RXRG and obesity traits in 5,224 participants (aged 45 years) in the 1958 British birth cohort (1958BC). We further extended our analyses to investigate the associations between SNPs and obesity traits using the summary statistics from the GIANT (Genetic Investigation of Anthropometric Traits) consortium (n=123,865). Results In the 1958BC (n=5,224), after Bonferroni correction, none of the tagSNPs were associated with obesity traits except for one tagSNP from CYP24A1 that was associated with waist-hip ratio (WHR) (rs2296239, P=0.001). However, the CYP24A1 SNP was not associated with BMI-adjusted WHR (WHRadj) in the 1958BC (rs2296239, P=1.00) and GIANT results (n=123,865, P=0.18). There was also no evidence for an interaction between the tagSNPs and obesity on BMI, WC, WHR and WHRadj in the 1958BC. In the GIANT consortium, none of the tagSNPs were associated with obesity traits. Conclusions Despite a very large study, our findings suggest that the vitamin D pathway genes are unlikely to have a major role in obesity-related traits in the general population.
Collapse
|
24
|
Maki KC, Fulgoni VL, Keast DR, Rains TM, Park KM, Rubin MR. Vitamin D Intake and Status Are Associated with Lower Prevalence of Metabolic Syndrome in U.S. Adults: National Health and Nutrition Examination Surveys 2003–2006. Metab Syndr Relat Disord 2012; 10:363-72. [DOI: 10.1089/met.2012.0020] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | - Debra R. Keast
- Food & Nutrition Database Research Inc., Okemos, Michigan
| | | | | | | |
Collapse
|
25
|
Dorjgochoo T, Shi J, Gao YT, Long J, Delahanty R, Xiang YB, Cai Q, Shu XO. Genetic variants in vitamin D metabolism-related genes and body mass index: analysis of genome-wide scan data of approximately 7000 Chinese women. Int J Obes (Lond) 2011; 36:1252-5. [PMID: 22158264 DOI: 10.1038/ijo.2011.246] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Vitamin D deficiency has been consistently associated with obesity. However, it is unclear whether vitamin D deficiency is the cause or consequence of obesity. We investigated this question by evaluating the association between genetic variants in vitamin D metabolism pathway genes and obesity-related traits. Using directly genotyped and imputed data from a genome-wide association study of 6922 women aged 25-70 years, we examined the association of 198 single-nucleotide polymorphisms (SNPs) in vitamin D pathway genes (CYP27A1, CYP27B1, CYP24A1, CYP2R1, group-specific component (GC) and vitamin D nuclear receptor (VDR)) with body mass index (BMI) and body weight. Per allele beta (β) estimates were calculated for this association using linear regression models, controlling for age, square of age, menopausal status and sample sets. Overall, only two SNPs (rs2248359 in CYP24A1 and rs10832313 in CYP2R1) had a nominally significant association with BMI and weight (P<0.05 for all), with no variation observed by menopausal status, physical activity or dietary energy intake. None of the SNPs examined in the VDR gene were associated with BMI or weight. Our findings suggest that common genetic variants in vitamin D pathway genes do not have a major role in obesity among Chinese women. This comprehensive evaluation of genetic polymorphisms in vitamin D metabolism-related genes and obesity-related traits did not provide strong evidence to support low vitamin D levels as a cause of obesity.
Collapse
Affiliation(s)
- T Dorjgochoo
- Division of Epidemiology, Department of Medicine, Institute of Medicine and Public Health, Vanderbilt University School of Medicine, Nashville, TN 37203-1738, USA
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Choi JW, Wang X, Joo JI, Kim DH, Oh TS, Choi DK, Yun JW. Plasma proteome analysis in diet-induced obesity-prone and obesity-resistant rats. Proteomics 2010; 10:4386-400. [PMID: 21136593 DOI: 10.1002/pmic.201000391] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
One of the major issues in the field of obesity is why some humans become obese and others resist development of obesity when exposed to high-calorie diets. Despite the same genetic background, namely obesity-prone (OP) and -resistant (OR) rats, differing responses have been demonstrated in a high fat diet-induced rodent model. The aim of the present study was to discover novel obesity-related biomarkers for susceptibility and/or resistance to obesity by proteomic analysis of OP and OR rat plasma. After feeding of high fat diet, OP rats gained approximately 25% more body weight than OR rats and were used for proteomic analysis using 2-DE combined with MALDI-TOF-MS. We categorized identified proteins into three groups by analysis of both average spot density in each group and individual spot density of six rats as a function of body weight. Consequently, category (1) included inter-α-inhibitor H4 heavy chain and fetuin B precursor, which can be used as novel plasma biomarkers for risk of obesity. Nine proteins of category (2) and (3) can also be plausible plasma markers in the study of obesity. This proteomic study is an important advancement over the previous steps needed for identification of OP and OR rats.
Collapse
Affiliation(s)
- Jung-Won Choi
- Department of Biotechnology, Daegu University, Kyungsan, Kyungbuk, Republic of Korea
| | | | | | | | | | | | | |
Collapse
|
27
|
Gu JM, Xiao WJ, He JW, Zhang H, Hu WW, Hu YQ, Li M, Liu YJ, Fu WZ, Yu JB, Gao G, Yue H, Ke YH, Zhang ZL. Association between VDR and ESR1 gene polymorphisms with bone and obesity phenotypes in Chinese male nuclear families. Acta Pharmacol Sin 2009; 30:1634-42. [PMID: 19960008 DOI: 10.1038/aps.2009.169] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
AIM The goal of this study was to determine whether polymorphisms in the vitamin D receptor (VDR) and estrogen receptor alpha (ESR1) genes are associated with variations of peak bone mineral density (BMD) and obesity phenotypes in young Chinese men. METHODS A total of 1215 subjects from 400 Chinese nuclear families were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and allele-specific multiple PCR (ASM-PCR) analysis at the ApaI, FokI, and CDX2 sites in the VDR gene and the PvuII and XbaI sites in the ESR1 gene. BMD at the lumbar spine and hip, total fat mass, and total lean mass were measured using dual energy X-ray absorptiometry. The associations between VDR and ESR1 gene polymorphisms with peak BMD, body mass index (BMI), total fat mass, total lean mass, and percentage fat mass (PFM) were determined using quantitative transmission disequilibrium tests (QTDTs). RESULTS Using QTDTs, no significant within-family associations were obtained between genotypes or haplotypes of the VDR and ESR1 genes and peak BMD. For the obesity phenotypes, the within-family associations were significant between CDX2 genotypes and BMI (P=0.046), fat mass (P=0.004), and PFM (P=0.020). Further, PvuII was significantly associated with the variation of fat mass and PFM (P=0.002 and P=0.039, respectively). A subsequent 1000 permutations were in agreement with these within-family association results. CONCLUSION Our findings showed that VDR and ESR1 polymorphisms were associated with total fat mass in young Chinese men, but we failed to find a significant association between VDR and ESR1 genotypes and peak BMD. These findings suggested that the VDR and ESR1 genes are quantitative trait loci (QTL) underlying fat mass variation in young Chinese men.
Collapse
|