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Shu M, Xi Y, Wu J, Zhuo LB, Yan Y, Yang YD, Feng YY, Tan HQ, Yang HF, Chen YM. Relationship between Circulating 25-Hydroxyvitamin D and Metabolic Syndrome in Chinese Adults: A Large Nationwide Longitudinal Study. Nutrients 2024; 16:1480. [PMID: 38794718 PMCID: PMC11124364 DOI: 10.3390/nu16101480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
OBJECTIVE This study investigated the association of circulating levels of 25-hydroxyvitamin D (25[OH]D) with the risk of metabolic syndrome (MetS) and its components in adults. METHODS This nationwide cohort involved 23,810 Chinese adults attending annual health evaluations. Serum 25(OH)D levels, MetS status, and covariates were determined at each examination. Among them, 8146, 3310, and 1971 completed two, three, and more than three evaluations, respectively. A hybrid mixed-effects and Cox regression model was employed to determine the cross-sectional and longitudinal relationships. RESULTS The odds ratios (ORs) and 95% confidence intervals (CIs) of MetS were significantly lower in individuals within quartile 4 (vs. 1) of serum 25(OH)D for both between-individual (0.43 [0.35, 0.52]) and within-individual comparisons (0.60 [0.50, 0.73]), respectively (all p-trends < 0.001). Among the MetS components, the corresponding ORs (95% CI) in between- and within-individual comparisons were 0.40 (0.29, 0.54) and 0.26 (0.19, 0.36) for abdominal obesity, 0.49 (0.41, 0.58) and 0.78 (0.66, 0.93) for high triglycerides, 0.70 (0.59, 0.82) and 0.75 (0.64, 0.87) for hypertriglyceridemia, 0.48 (0.39, 0.59) and 0.87 (0.71, 1.07) for low HDL cholesterol, and 0.92 (0.76, 1.12) and 0.49 (0.41, 0.59) for hypertension, respectively. Decreased hazard ratios (95% CIs) in quartile 4 (vs. 1) of 25(OH)D were found for MetS (0.80 [0.65, 1.00]), high triglycerides (0.76 [0.62, 0.92]), abdominal obesity (0.77 [0.63, 0.96]), and low HDL cholesterol (0.64 [0.50, 0.81]). CONCLUSIONS Decreased concentrations of serum 25(OH)D correlate significantly to a heightened MetS risk and specific components. Our findings underscore the potential preventive function of circulating vitamin D concerning metabolic disorders.
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Affiliation(s)
- Mi Shu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (M.S.); (Y.X.); (L.-B.Z.); (Y.Y.); (H.-Q.T.)
- Yibicom Health Management Center, Guangzhou 510530, China; (J.W.); (Y.-D.Y.); (Y.-Y.F.)
| | - Yue Xi
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (M.S.); (Y.X.); (L.-B.Z.); (Y.Y.); (H.-Q.T.)
| | - Jie Wu
- Yibicom Health Management Center, Guangzhou 510530, China; (J.W.); (Y.-D.Y.); (Y.-Y.F.)
| | - Lai-Bao Zhuo
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (M.S.); (Y.X.); (L.-B.Z.); (Y.Y.); (H.-Q.T.)
| | - Yan Yan
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (M.S.); (Y.X.); (L.-B.Z.); (Y.Y.); (H.-Q.T.)
| | - Yi-Duo Yang
- Yibicom Health Management Center, Guangzhou 510530, China; (J.W.); (Y.-D.Y.); (Y.-Y.F.)
| | - Yue-Yue Feng
- Yibicom Health Management Center, Guangzhou 510530, China; (J.W.); (Y.-D.Y.); (Y.-Y.F.)
| | - Hua-Qiao Tan
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (M.S.); (Y.X.); (L.-B.Z.); (Y.Y.); (H.-Q.T.)
| | - Hui-Fang Yang
- Yibicom Health Management Center, Guangzhou 510530, China; (J.W.); (Y.-D.Y.); (Y.-Y.F.)
| | - Yu-Ming Chen
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (M.S.); (Y.X.); (L.-B.Z.); (Y.Y.); (H.-Q.T.)
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Adeniyi OV, Masilela C, George JA. Prevalence of vitamin D deficiency and its association with cardiometabolic risk factors among healthcare workers in the Eastern Cape province, South Africa; cross-sectional study. Sci Rep 2024; 14:4756. [PMID: 38413628 PMCID: PMC10899187 DOI: 10.1038/s41598-024-54977-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 02/19/2024] [Indexed: 02/29/2024] Open
Abstract
This study assesses the prevalence of Vitamin D deficiency and its potential association with cardiometabolic risk factors among South African adults residing in the Eastern Cape province. In this cross-sectional study, 1244 healthcare workers (HCWs) completed a self-administered questionnaire and venous blood samples were drawn at two academic hospitals in the Eastern Cape. History of hypertension and diabetes mellitus were self-reported. Participants were categorised as obese if their body mass index (BMI) ≥ 30 kg/m2. Participants were classified as having metabolic syndrome if they had hypertension, diabetes mellitus and obesity. Vitamin D [25(OH)D] deficiency was defined as venous blood concentrations < 50 nmol/L. Associations between vitamin D deficiency and participants' characteristics were assessed using multivariate logistic regression model analysis. The prevalence of vitamin D deficiency was 28.5% (n = 355), of whom 292 were female. Among the participants who were deficient in vitamin D, the prevalence of obesity, diabetes mellitus, hypertension, chronic kidney disease, and metabolic syndrome was 64.9% (n = 230), 9% (n = 32), 16.6% (n = 59), 2.3% (n = 8) and 18% (n = 64), respectively. In the adjusted multivariate logistic regression model, black Africans (AOR = 2.87; 95% CI 1.52-5.43) and individuals ≥ 42 years (AOR = 1.37; 95% CI 1.07-1.77) were more likely to exhibit vitamin D deficiency. However, there was no significant association by age, sex, and cardiometabolic markers. More than one in four healthcare workers was deficient in vitamin D among the study sample, especially the black Africans and older individuals. Further studies are needed at the population level to elucidate on the vitamin D status in the region.
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Affiliation(s)
| | - Charity Masilela
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa
| | - Jaya A George
- Department of Chemical Pathology, National Health Laboratory Service and University of the Witwatersrand, Parktown, Johannesburg, South Africa
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Quan QL, Yoon KN, Lee JS, Kim EJ, Lee DH. Impact of ultraviolet radiation on cardiovascular and metabolic disorders: The role of nitric oxide and vitamin D. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2023; 39:573-581. [PMID: 37731181 DOI: 10.1111/phpp.12914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND/PURPOSE Ultraviolet (UV) radiation has both harmful and beneficial effects on human skin and health. It causes skin damage, aging, and cancer; however, it is also a primary source of vitamin D. Additionally, UV radiation can impact energy metabolism and has protective effects on several cardiovascular and metabolic disorders in mice and humans. However, the mechanisms of UV protection against these diseases have not been clearly identified. METHODS This review summarizes the systemic effects of UV radiation on hypertension and several metabolic diseases such as obesity, diabetes, and nonalcoholic fatty liver disease (NAFLD) in mice, and we also consider the mechanisms of action of the related regulators nitric oxide (NO) and vitamin D. RESULTS UV exposure can lower blood pressure and prevent the development of cardiovascular diseases and metabolic disorders, such as metabolic syndrome, obesity, and type 2 diabetes, primarily through mechanisms that depend on UV-induced NO. UV radiation may also effectively delay the onset of type 1 diabetes through mechanisms that rely on UV-induced vitamin D. UV-induced NO and vitamin D play roles in preventing and slowing the progression of NAFLD. CONCLUSION UV exposure is a promising nonpharmacological intervention for cardiovascular and metabolic disorders. NO and vitamin D may play a crucial role in mediating these effects. However, further investigations are required to elucidate the exact mechanisms and determine the optimal dosage and exposure duration of UV radiation.
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Affiliation(s)
- Qing-Ling Quan
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Kyeong-No Yoon
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Ji Su Lee
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Eun Ju Kim
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Dong Hun Lee
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
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Varsamis N, Christou GA, Derdemezis C, Tselepis A, Kiortsis D. The Associations of Dietary Vitamin K Intake and Circulating Vitamin 25(OH)D with Serum Lipoprotein Levels: The Vitamin Deficiency Matters. Horm Metab Res 2023; 55:196-204. [PMID: 36848929 DOI: 10.1055/a-2020-2080] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
A synergistic interplay between vitamins K and D appears to exist. We aimed to investigate for the first time whether the associations of dietary vitamin K intake and circulating 25(OH)D with serum lipoprotein levels are influenced by the existence of deficiency of either or both vitamins K and D. Sixty individuals [24 males, 36(18-79) years old] were examined. Vitamin deficiency of K1 and D were defined as vitamin K1 intake/body weight (BW)<1.00 μg/kg/day and circulating 25(OH)D<20 ng/ml, respectively. In individuals with vitamin K1 deficiency, the vitamin K1 intake/BW correlated positively with high density lipoprotein-cholesterol (HDL-C) (r=0.509, p=0.008) and negatively with serum triglycerides (TG) (r=-0.638, p=0.001), whereas circulating 25(OH)D correlated negatively with TG (r=-0.609, p=0.001). In individuals with vitamin D deficiency, the vitamin K1 intake/BW correlated positively with HDL-C (r=0.533, p=0.001) and negatively with TG (r=-0.421, p=0.009), while circulating 25(OH)D correlated negatively with TG (r=-0.458, p=0.004). The above-mentioned associations of vitamin K1 intake/BW and circulating 25(OH)D with serum lipoproteins were not detected in individuals without vitamin K1 deficiency or the ones without vitamin D deficiency. The vitamin K2 intake/BW correlated negatively with low density lipoprotein-cholesterol (LDL-C) (r=-0.404, p=0.001). In conclusion, the associations of vitamin K1 intake with TG and HDL-C and of circulating 25(OH)D with TG were more pronounced in individuals with deficiency of either or both vitamins K1 and D. Increased dietary vitamin K2 intake was associated with decreased LDL-C.
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Affiliation(s)
- Nikolaos Varsamis
- Atherothrombosis Research Centre, University of Ioannina Faculty of Medicine, Ioannina, Greece
| | - Georgios A Christou
- Atherothrombosis Research Centre, University of Ioannina Faculty of Medicine, Ioannina, Greece
| | - Christos Derdemezis
- Atherothrombosis Research Centre, University of Ioannina Faculty of Medicine, Ioannina, Greece
| | - Alexandros Tselepis
- Atherothrombosis Research Centre/Laboratory of Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Dimitrios Kiortsis
- Atherothrombosis Research Centre, University of Ioannina Faculty of Medicine, Ioannina, Greece
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Lukas S, Ramatillah D, Aldi Y, Wahyuni F, Khan K. Evaluation of increased antibody titer COVID-19 after astrazeneca vaccination based on the age at UTA'45 Jakarta Vaccine Center. ASIAN JOURNAL OF PHARMACEUTICAL RESEARCH AND HEALTH CARE 2023. [DOI: 10.4103/ajprhc.ajprhc_4_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Bahadorpour S, Hajhashemy Z, Saneei P. Serum 25-hydroxyvitamin D levels and dyslipidemia: a systematic review and dose-response meta-analysis of epidemiologic studies. Nutr Rev 2022; 81:1-25. [PMID: 35831956 DOI: 10.1093/nutrit/nuac038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
CONTEXT Findings of previous observational studies that examined the association between circulating vitamin D levels and lipid profiles have been inconsistent. OBJECTIVE A dose-response meta-analysis of epidemiologic studies was conducted to investigate the relationship between serum 25-hydroxyvitamin D levels and dyslipidemia in adults. DATA SOURCES Electronic databases were searched systematically for articles published up to June 2021. DATA EXTRACTION Fifty-seven observational studies and 2 cohort studies that reported odds ratios (ORs) or relative risks (RRs) with 95%CIs for dyslipidemia in relation to serum 25-hydroxyvitamin D levels in adults were included. DATA ANALYSIS A high level, vs a low level, of serum 25-hydroxyvitamin D was related to a significant 19% decrease in the odds of hypertriglyceridemia (OR 0.81; 95%CI, 0.74-0.89), an 18% reduction in low high-density lipoprotein cholesterol (HDL-C) (OR 0.82; 95%CI, 0.76-0.89), and an 18% reduction in dyslipidemia (OR 0.82; 95%CI, 0.75-0.91). No significant association was found between a high vs a low level of serum 25-hydroxyvitamin D and risk of high low-density lipoprotein cholesterol (LDL-C) levels (OR 0.86; 95%CI, 0.62-1.19) or hypercholesterolemia (OR 1.03; 95%CI, 0.93-1.15). Dose-response analyses demonstrated that each 10 ng/mL increase in the serum 25-hydroxyvitamin D level was linked, respectively, to a 7% (OR 0.93;95%CI, 0.85-1.02), a 3% (OR 0.97; 95%CI, 0.90-1.05), and a 4% (OR 0.96; 95%CI, 0.92-1.00) marginally significant decrease in the odds of hypertriglyceridemia, low HDL-C, and dyslipidemia. CONCLUSION Higher serum 25-hydroxyvitamin D levels are associated with significant reductions in the odds of hypertriglyceridemia, low HDL-C, and dyslipidemia in a dose-response trend. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42021219484.
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Affiliation(s)
- Sedigheh Bahadorpour
- are with the Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.,are with the Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Hajhashemy
- are with the Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.,are with the Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvane Saneei
- are with the Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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The joint association of serum vitamin D status and cardiorespiratory fitness with obesity and metabolic syndrome in Tehranian adults. Br J Nutr 2022; 128:636-645. [PMID: 34420527 DOI: 10.1017/s0007114521003196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We aimed to assess the individual and joint association of serum vitamin D and cardiorespiratory fitness (CRF) with obesity and metabolic syndrome (MetSyn). In this cross-sectional study 270 adults with an age range of 18 years and older were recruited from health centers from five districts in Tehran, Iran. CRF was assessed with Bruce protocol. MetSyn was defined based on International Diabetes Federation 2009. The odds ratio (OR) and 95 % confidence interval (CI) of obesity and MetSyn across tertiles of serum vitamin D and CRF were estimated with control for confounders. The results indicated that neither 25(OH)D nor 1,25(OH)D was associated with obesity and MetSyn. There was a strong inverse association between CRF and general (P-trend < 0.001) and abdominal adiposity (P-trend: 0.001). The joint association of vitamin D and CRF indicated that the inverse association of CRF with obesity was stronger in those with high serum vitamin D than those with low serum vitamin D and this joint association remained after considering age and diet quality. There was a significant inverse association for those with low serum 25(OH)D and high CRF (OR: 0.12, 95 % CI: 0.04-0.81; P = 0.02) compared to those with low serum 25(OH)D and low CRF in the crude model. Also, the OR of general obesity was 0.17 (95 % CI: 0.02-0.79; P = 0.03) for those with high CRF and low serum 1,25(OH)D compare with the reference group. Our findings indicated a strong inverse association between CRF and obesity, especially in those with high serum vitamin D.
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The beneficial cutoffs of vitamin D for metabolic syndrome varies by sex among the elderly Chinese population: a cross-sectional study. Nutr Res 2022; 104:91-100. [DOI: 10.1016/j.nutres.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022]
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Yang C, Liu X, Li J, Yan N, Dang Y, Chang Z, Wang K, Liu X, Zhao Y, Zhang Y. Association of Serum Vitamin D and Estradiol Levels with Metabolic Syndrome in Rural Women of Northwest China: A Cross-Sectional Study. Metab Syndr Relat Disord 2022; 20:182-189. [PMID: 35041548 DOI: 10.1089/met.2021.0120] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objectives: We aimed to determine the association of serum vitamin D and estradiol levels with metabolic syndrome (MS) in rural women of northwest China. Methods: This research is a cross-sectional study. MS was defined according to the updated China Diabetes Society (CDS) criteria. Fasting serum 25-hydroxyvitamin D [25(OH)D] and estradiol levels were measured using a chemiluminescence immunoassay. Differences between variables were analyzed using the chi-square test and t-test. Logistic regression analysis models were used to estimate the odds ratios (ORs) and 95% confidence intervals. Results: In total, 1893 women participated, of whom 641 (33.9%) had MS. The serum levels of 25(OH)D and estradiol were higher in the non-MS group. There was no significant association between 25(OH)D and estradiol levels. After adjusting for potential confounders, we compared first, second, and third quartiles with the highest quartile. Adjusted ORs for MS with respect to 25(OH)D level quartiles were 1.555, 1.281, and 1.568, respectively. Adjusted ORs for MS with respect to estradiol level quartiles were 0.671, 0.785, and 0.996, respectively. In the vitamin D-deficient (VD-deficient) group, adjusted ORs for MS with respect to estradiol level quartiles were 0.635, 0.753, and 0.918, respectively. Conclusions: There is a negative correlation between MS and vitamin D level and a positive correlation between MS and estradiol level. Low estradiol concentrations increased the risk of MS in the VD-deficient group. The results suggest a potential synergism between low 25(OH)D concentration and estradiol in MS in women.
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Affiliation(s)
- Chan Yang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xiaowei Liu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Juan Li
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Ni Yan
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yuanyuan Dang
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Zhenqi Chang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Kairong Wang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xiuying Liu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
- Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia, China
| | - Yi Zhao
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
- Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia, China
| | - Yuhong Zhang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia, China
- Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia, China
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Mokhtari E, Hajhashemy Z, Saneei P. Serum Vitamin D Levels in Relation to Hypertension and Pre-hypertension in Adults: A Systematic Review and Dose–Response Meta-Analysis of Epidemiologic Studies. Front Nutr 2022; 9:829307. [PMID: 35360696 PMCID: PMC8961407 DOI: 10.3389/fnut.2022.829307] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/04/2022] [Indexed: 02/03/2023] Open
Abstract
Background Findings of observational studies that evaluated the association of serum vitamin D status and high blood pressure were contradictory. This meta-analysis of epidemiologic studies assessed the relation of serum vitamin D levels to hypertension (HTN) and pre-hypertension in adults. Methods We conducted a systematic search of all published articles up to March 2021, in four electronic databases (MEDLINE (PubMed), Web of Science (ISI), Embase and Scopus), and Google scholar. Seventy epidemiologic studies (10 prospective cohort, one nested case–control, and 59 cross-sectional investigations) that reported relative risks (RRs), odds ratios (ORs), hazard ratios, or prevalence ratios with 95% CIs for HTN or pre-hypertension in relation to serum vitamin D concentrations in adults were included in the analysis. Results In prospective studies, a 16% decrease in risk of hypertension was observed in participants with high levels of serum vitamin D compared to low levels (RR: 0.84; 95%CI: 0.73, 0.96; 12 effect sizes). Dose–response analysis in prospective studies revealed that each 25 nmol/L increase in serum vitamin D concentrations resulted in 5% reduced risk of HTN (RR: 0.95; 95% CI: 0.90, 1.00). Also, a significant nonlinear relationship between serum vitamin D levels and HTN was found (Pnonlinearity < 0.001). In cross-sectional investigations, highest vs. lowest level of serum vitamin D was related to reduced odds of HTN (OR: 0.84; 95%CI: 0.79, 0.90; 66 effect sizes) and pre-hypertension (OR: 0.75; 0.95%CI: 0.68, 0.83; 9 effect sizes). Dose–response analysis in these studies showed that each 25 nmol/L increase in serum vitamin D levels was related to a significant 6% reduction in odds of hypertension in all populations (RR: 0.94; 95%CI: 0.90, 0.99) and 3% in studies with representative populations (RR: 0.97; 95%CI: 0.95, 0.99). Conclusion This meta-analysis of epidemiologic studies disclosed that serum vitamin D concentrations were inversely related to the risk of HTN in adults, in a dose–response manner in both prospective cohort and cross-sectional studies. Systematic Review Registration:http://www.crd.york.ac.uk/Prospero, identifier: CRD42021251513.
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Affiliation(s)
- Elahe Mokhtari
- Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Hajhashemy
- Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- *Correspondence: Parvane Saneei ;
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Prevalence of vitamin D deficiency and its association with metabolic syndrome among the elderly population of Birjand, Iran. J Diabetes Metab Disord 2022; 21:475-481. [PMID: 35673492 PMCID: PMC9167312 DOI: 10.1007/s40200-022-00998-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/30/2022] [Indexed: 10/19/2022]
Abstract
Background With increasing life expectancy and the aging population of most countries, attention to the diseases of old age has also increased. Due to the high prevalence of vitamin D deficiency in the elderly, the present study was designed and performed to investigate the relationship between serum vitamin D levels in Iranian elderly with the risk of metabolic syndrome (MetS). Methods This study was conducted on an elderly population of Birjand (60 and older) in the urban and rural areas of the city. In 1325 elderly men and women, with age range of 60 and older, serum 25-hydroxyvitamin D, anthropometric measurements and laboratory variables were measured. Results Twenty-eight percent of the elderly participants in the study had vitamin D deficiency. We found that participants with higher 25(OH)D had lower odds for elevated waist circumference (WC) (OR = 0.91, 95% CI 0.83-0.98), reduced HDL (OR = 0.96, 95% CI 0.86-0.97) and elevated fasting blood sugar (FBS) (OR = 0.96, 95% CI 0.89-0.98). We not found any significant association between 25(OH)D levels and other MetS components. Conclusion Higher 25(OH)D levels in the elderly are linked to a reduced prevalence of MetS and, specifically, higher levels of favorable HDL-C, WC and FBS. Further intervention studies are needed to substantiate the results of this study.
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Xu H, Han G, Wang L, Ding H, Wang C, Ping X, Dong C, Zhang D, Dai Y, Li N, Li Y, Yang H, Zhu H, Pan H, Gong F, Chen J, Xing X. 25-hydroxyvitamin D levels are inversely related to metabolic syndrome risk profile in northern Chinese subjects without vitamin D supplementation. Diabetol Metab Syndr 2022; 14:23. [PMID: 35093150 PMCID: PMC8800320 DOI: 10.1186/s13098-022-00793-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/12/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The comparatively low 25 hydroxyvitamin D [25(OH)D] levels have been reported in patients with metabolic syndrome (MetS). Herein we investigated the cross-sectional and longitudinal relationships between serum 25(OH)D levels and MetS risk profile in northern middle-aged Chinese subjects without vitamin D supplementation. METHODS A cohort of 211 participants including 151 MetS patients and 60 controls at 20-69 years of age were enrolled from suburban Beijing, China. The recruited MetS patients were subjected to diet and exercise counselling for 1-year. All subjects at baseline and MetS patients after intervention underwent clinical evaluations. RESULTS Serum 25(OH)D levels were significantly decreased in MetS patients. 25(OH)D levels were inversely related to MetS score, fasting blood glucose (FBG) and triglyceride-glucose index (TyG) after adjusting for cofounders (all P < 0.05). Participants in the lowest tertile of 25(OH)D levels had increased odds for MetS (P = 0.045), elevated FBG (P = 0.004) in all subjects, and one MetS score gain in MetS patients (P = 0.005). Longitudinally, the metabolic statuses as well as 25(OH)D levels of MetS patients were significantly improved (all P < 0.05), and the increase of 25(OH)D levels were inversely related to MetS scores, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), FBG, and TyG, while positively related to high-density lipoprotein cholesterol (HDL-C) after adjusting for confounders. CONCLUSIONS 25(OH)D levels were significantly decreased in MetS patients, and it was negatively associated with metabolic dysfunctions at baseline and 1-year after. Metabolic aberrations of MetS patients were significantly ameliorated with 1-year follow-up counselling accompanying by notably elevated 25(OH)D levels.
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Affiliation(s)
- Hanyuan Xu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guiyan Han
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Linjie Wang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huihua Ding
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chunyan Wang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaochuan Ping
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Caixia Dong
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dianxi Zhang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yufei Dai
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Naishi Li
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yufeng Li
- Department of Endocrinology, Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing, China
| | - Hongbo Yang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huijuan Zhu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui Pan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fengying Gong
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Jichun Chen
- Nutrition department, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, China.
| | - Xiaoping Xing
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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13
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Brosolo G, Da Porto A, Bulfone L, Scandolin L, Vacca A, Bertin N, Vivarelli C, Sechi LA, Catena C. Vitamin D Deficiency Is Associated with Glycometabolic Changes in Nondiabetic Patients with Arterial Hypertension. Nutrients 2022; 14:nu14020311. [PMID: 35057492 PMCID: PMC8778458 DOI: 10.3390/nu14020311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 11/16/2022] Open
Abstract
Recent evidence indicates that mildly increased fasting and post-oral load blood glucose concentrations contribute to development of organ damage in nondiabetic patients with hypertension. In previous studies, vitamin D deficiency was associated with decreased glucose tolerance. The aim of this study was to examine the relationships between serum 25(OH)D levels and glucose tolerance and insulin sensitivity in hypertension. In 187 nondiabetic essential hypertensive patients free of cardiovascular or renal complications, we measured serum 25-hydroxyvitamin D (25(OH)D) and parathyroid hormone (PTH) and performed a standard oral glucose tolerance test (OGTT). Patients with 25(OH)D deficiency/insufficiency were older and had significantly higher blood pressure, fasting and post-OGTT (G-AUC) glucose levels, post-OGTT insulin (I-AUC), PTH levels, and prevalence of metabolic syndrome than patients with normal serum 25(OH)D. 25(OH)D levels were inversely correlated with age, blood pressure, fasting glucose, G-AUC, triglycerides, and serum calcium and PTH, while no significant relationships were found with body mass index (BMI), fasting insulin, I-AUC, HOMA index, and renal function. In a multivariate regression model, greater G-AUC was associated with lower 25(OH)D levels independently of BMI and seasonal vitamin D variations. Thus, in nondiabetic hypertensive patients, 25(OH)D deficiency/insufficiency could contribute to impaired glucose tolerance without directly affecting insulin sensitivity.
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14
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Cembranel F, Boing AC, Boing AF, Xavier AJ, d'Orsi E. Association between deficient and insufficient 25(OH)D serum concentrations and cardiometabolic risk factors: Findings of a population-based study with older adults of southern Brazil. Prev Med Rep 2021; 24:101587. [PMID: 34976647 PMCID: PMC8683881 DOI: 10.1016/j.pmedr.2021.101587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 09/25/2021] [Accepted: 10/03/2021] [Indexed: 11/25/2022] Open
Abstract
To investigate the association between deficient and insufficient serum concentrations of 25(OH)D and cardiometabolic risk factors (CMRF), considering that both conditions are important predictors of cardiovascular disease and diabetes mellitus. A cross-sectional study with a subsample of 526 older adults (63-93 years old) who participated in the second wave of the population-based longitudinal study EpiFloripa Idoso. The CMRF analyzed were abdominal obesity, high fasting glucose, high blood pressure, high triglycerides and high LDL-cholesterol. The exposure variable was 25(OH)D serum concentration (≤20 ng/mL = deficient; 21-29 ng/mL = insufficient, ≥30-<100 ng/mL = sufficient). The prevalences of 25(OH)D deficiency and insufficiency were estimated at 21.9% and 43.7%, respectively. The adjusted OR of prevalence of the abdominal obesity (OR 1.99;1.12-3.54), high blood pressure (OR 2.58;1.35-4.94) and high LDL-cholesterol (OR 2.73;1.63-4.6) were higher among those with deficient serum concentration of 25(OH)D. Participants with insufficient serum concentrations of 25(OH)D also presented higher adjusted OR of prevalence for abdominal obesity (OR 2.14;1.31-3.48). No significant adjusted association was found between 25(OH)D with the outcomes high fasting glucose and high triglycerides. Significant effect modification/interaction by age was also observed in the tested associations for abdominal obesity (P < 0.001), blood pressure (P < 0.001) and LDL-cholesterol (P < 0.001), in which deficient and insufficient 25(OH)D values were associated with higher values of these FRCM. 25(OH)D serum concentrations between 30 and 100 ng/mL can contribute to preventing and controlling CMRF such as abdominal obesity, high blood pressure and high LDL-cholesterol. The understanding this particular interaction may indicate ways to prevent/control cardiometabolic outcomes, health problems common in the older adults.
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Affiliation(s)
- Francieli Cembranel
- Public Health Postgraduate Program and Department of Nutrition, Federal University of Santa Catarina, Trindade University Campus, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Alexandra Crispim Boing
- Public Health Postgraduate Program, Federal University of Santa Catarina, Trindade University Campus, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Antonio Fernando Boing
- Public Health Postgraduate Program, Federal University of Santa Catarina, Trindade University Campus, Florianópolis, Santa Catarina 88040-900, Brazil
| | - André Junqueira Xavier
- Medicine Course, Universidade do Sul de Santa Catarina, Pedra Branca Campus, Palhoça, Santa Catarina 88137-270, Brazil
| | - Eleonora d'Orsi
- Public Health Postgraduate Program, Federal University of Santa Catarina, Trindade University Campus, Florianópolis, Santa Catarina 88040-900, Brazil
- Bernard Lown Scholar in Cardiovascular Health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, USA
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15
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Hajhashemy Z, Shahdadian F, Moslemi E, Mirenayat FS, Saneei P. Serum vitamin D levels in relation to metabolic syndrome: A systematic review and dose-response meta-analysis of epidemiologic studies. Obes Rev 2021; 22:e13223. [PMID: 33829636 DOI: 10.1111/obr.13223] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/04/2021] [Accepted: 02/04/2021] [Indexed: 12/11/2022]
Abstract
Several epidemiological studies examined the association of serum vitamin D with metabolic syndrome (MetS), but the findings were inconsistent. We conducted a systematic review and dose-response meta-analysis to quantify the association between blood vitamin D levels and MetS in adults. A systematic search up to December 2020 was conducted in MEDLINE (PubMed), ISI (Web of Science), Scopus, and Google Scholar databases for epidemiological studies that assessed the relation of serum 25-hydroxyvitamin D (as the exposure) and MetS (as the outcome) in adults. Eligible cross-sectional studies were restricted to those with representative populations. Finally, 43 studies were included in the analysis (38 cross-sectional, one nested case-control, and four cohorts studies). Combining 41 effect sizes from 38 cross-sectional studies included 298,187 general adult population revealed that the highest level of serum vitamin D, compared with the lowest level, was significantly related to a 43% decreased odds of MetS in developed countries (odds ratio [OR]: 0.57; 95% confidence interval [CI]: 0.49-0.65) and 40% in developing countries (OR: 0.60; 95% CI: 0.52-0.70). Linear dose-response analysis (including 222,175 healthy individuals and 39,308 MetS patients) revealed that each 25 nmol/L increase in serum vitamin D level was significantly associated with a 15% decreased odds of MetS (OR: 0.85; 95% CI: 0.80-0.91); however, we found no significant nonlinear association. Meta-analysis of five prospective studies with 11,019 participants revealed no significant relation (relative risk [RR]: 0.70; 95% CI: 0.37-1.32). This meta-analysis indicated an inverse association between serum vitamin D concentrations and risk of MetS in general adult populations in cross-sectional studies in a dose-response manner. However, no significant association was found in a small number of cohorts. More prospective studies are needed to confirm the causality of this relationship.
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Affiliation(s)
- Zahra Hajhashemy
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farnaz Shahdadian
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Moslemi
- Department of Biochemistry and Diet Therapy, Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fateme Sadat Mirenayat
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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16
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Xiao J, Lv J, Wang S, Zhou Y, Chen L, Lu J, Zhang X, Wang X, Gu Y, Lu Q. Association of serum 25-hydroxyvitamin D with metabolic syndrome and type 2 diabetes: a one sample Mendelian randomization study. BMC Geriatr 2021; 21:391. [PMID: 34187381 PMCID: PMC8244233 DOI: 10.1186/s12877-021-02307-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/25/2021] [Indexed: 01/08/2023] Open
Abstract
Background Vitamin D deficiency has been associated with type 2 diabetes (T2D) and metabolic syndrome (MS) and its components. However, it is unclear whether a low concentration of vitamin D is the cause or consequence of these health conditions. Thus, this study aimed to evaluate the association of vitamin D concentrations and its genetic risk scores (GRSs) with MS and its component diseases, such as T2D, in middle-aged and elderly participants from rural eastern China. Methods A subset of 2393 middle-aged and elderly individuals were selected from 70,458 participants of the Nantong Chronic Diseases Study of 2017–2018 in China. We used two 25-hydroxyvitamin D (25[OH]D) synthesis single-nucleotide polymorphisms (SNPs) (DHCR7-rs12785878 and CYP2R1-rs10741657) and two 25(OH) D metabolism SNPs (GC-rs2282679 and CYP24A1-rs6013897) for creating GRSs, which were used as instrumental variables to assess the effect of genetically lowered 25(OH) D concentrations on MS and T2D based on the Wald ratio. F statistics were used to validate that the four SNPs genetically determined 25(OH) D concentrations. Results Compared to vitamin D sufficient individuals, individuals with vitamin D insufficiency had an odds ratio (OR [95% confidence interval {CI}]) of MS of 1.30 (1.06–1.61) and of T2D of 1.32 (1.08–1.64), individuals with vitamin D deficiency had an ORs (95% CI) of MS of 1.50 (1.24–1.79) and of T2D of 1.47 (1.12–1.80), and those with vitamin D severe deficiency had an ORs (95% CI) of MS of 1.52 (1.29–1.85) and of T2D of 1.54 (1.27–1.85). Mendelian randomization analysis showed a 25-nmol/L decrease in genetically instrumented serum 25(OH) D concentrations using the two synthesis SNPs (DHCR7 and CYP2R1 genes) associated with the risk of T2D and abnormal diastolic blood pressure (DBP) with ORs of 1.10 (95%CI: 1.02–1.45) for T2D and 1.14 (95%CI: 1.03–1.43) for DBP. Conclusions This one sample Mendelian randomization analysis shows genetic evidence for a causal role of lower 25(OH) D concentrations in promoting of T2D and abnormal DBP in middle-aged and elderly participants from rural China. Supplementary Information The online version contains supplementary material available at 10.1186/s12877-021-02307-6.
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Affiliation(s)
- Jing Xiao
- Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019
| | - Jingyi Lv
- Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019
| | - Shiyu Wang
- Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019
| | - Yang Zhou
- Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019
| | - Lunwen Chen
- Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019
| | - Juying Lu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, No.20 Xisi Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226001
| | - Xiaoyi Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, No.20 Xisi Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226001
| | - Xiaojian Wang
- Department of Chronic Disease and Prevention, Center for Disease Control and Prevention of Haian, Nantong, Jiangsu, P.R. China, 226600
| | - Yunjuan Gu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, No.20 Xisi Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226001.
| | - Qingyun Lu
- Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019.
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17
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Hajhashemy Z, Shahdadian F, Ziaei R, Saneei P. Serum vitamin D levels in relation to abdominal obesity: A systematic review and dose-response meta-analysis of epidemiologic studies. Obes Rev 2021; 22:e13134. [PMID: 32881271 DOI: 10.1111/obr.13134] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/08/2020] [Accepted: 08/08/2020] [Indexed: 12/14/2022]
Abstract
Although several observational studies have investigated the relationship between vitamin D deficiency and risk of central obesity, the results were inconsistent. We performed a dose-response meta-analysis on epidemiologic studies that evaluated the association of vitamin D status and abdominal obesity in adults. A systematic search was carried out of all published articles, up to May 2020, in five electronic databases, including MEDLINE (Pubmed), EMBASE, Institute for Scientific Information (ISI) (Web of science), Scopus and Google scholar. Forty-one observational studies reported odds ratios (ORs) or relative risks (RRs) with 95% confidence intervals (CIs) for abdominal obesity in relation to serum vitamin D levels in adults were included in the analysis. Using a random effects model, the overall effect size was calculated. Combining 44 effect sizes from 36 cross-sectional studies with 257,699 participants revealed that the highest versus the lowest serum vitamin D level was significantly associated with a 23% decreased odds of abdominal obesity (OR: 0.77; 95% CI [0.71, 0.83]). This inverse association was significant in almost all subgroups based on different covariates. Dose-response analysis showed that each 25 nmol/L increase in serum vitamin D was related to 8% reduced risk of abdominal obesity (OR: 0.92; 95% CI [0.85, 0.99]). When we confined the analysis to 23 effect sizes from 17 studies with representative population (242,135 participants), the same results were obtained (OR: 0.79; 95% CI [0.71, 0.87]). Dose-response analysis indicated that each 25 nmol/L increase in blood vitamin D levels was linked to 10% decreased central adiposity risk in representative populations (OR: 0.90; 95% CI [0.82, 0.99]). This meta-analysis of epidemiologic studies revealed that serum vitamin D level was inversely associated with risk of abdominal obesity in adults, in a dose-response manner. The same findings were obtained in representative populations. Further prospective studies are required to examine the causal association between serum vitamin D levels and abdominal obesity.
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Affiliation(s)
- Zahra Hajhashemy
- Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farnaz Shahdadian
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rahele Ziaei
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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18
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Faraji S, Alizadeh M. Mechanistic Effects of Vitamin D Supplementation on Metabolic Syndrome Components in Patients with or without Vitamin D Deficiency. J Obes Metab Syndr 2020; 29:270-280. [PMID: 32747610 PMCID: PMC7789020 DOI: 10.7570/jomes20003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/21/2020] [Accepted: 05/17/2020] [Indexed: 12/11/2022] Open
Abstract
The prevalences of metabolic syndrome (MetS) and vitamin D deficiency are increasing dramatically worldwide. MetS is a major challenge because it can increase the risk of most non-communicable diseases. The beneficial effect of vitamin D on MetS components remains controversial, so the present review focused on the clinical effects of vitamin D supplementation on MetS components. Vitamin D can inhibit the protein expression of nuclear factor beta; improve arterial stiffness; decrease renin-angiotensin-aldosterone system activity, parathyroid hormone levels, inflammatory cytokines, 3-hydroxy-3-methylglutaryl-coenzyme A reductase, and lanosterol 14 α-demethylase enzyme activity; increase the activity of lipoprotein lipase; alter gene expression in C2C12 cells; and improve phospholipid metabolism and mitochondrial oxidation. We tried to elucidate and analyze almost all evidence from randomized controlled trial studies of the efficacy of vitamin D supplementation in patients with MetS. The findings of the present study reported beneficial effects of vitamin D supplementation on mentioned factors. Vitamin D supplementation is recommended in people with vitamin D deficiency even if it has no considerable effect on most MetS factors. However, existing data from interventional studies are insufficient to reach a definitive conclusion about the effect of vitamin D supplementation on MetS components in patients without vitamin D deficiency. Thus, new clinical studies are needed to test the hypothesis that vitamin D supplementation could alleviate MetS components in patients with sufficient intake of vitamin D.
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Affiliation(s)
- Samira Faraji
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran.,Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohammad Alizadeh
- Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Food and Beverages Safety Research Center, Urmia University of Medical Sciences, Urmia, Iran
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19
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Lee K, Kim J. Serum vitamin D status and metabolic syndrome: a systematic review and dose-response meta-analysis. Nutr Res Pract 2020; 15:329-345. [PMID: 34093974 PMCID: PMC8155226 DOI: 10.4162/nrp.2021.15.3.329] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/19/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUD/OBJECTIVES Evidence has suggested an association between serum vitamin D and metabolic syndrome (MetS), but prospective studies are very limited. The objective was to assess the dose-response association between serum vitamin D concentration and MetS risk using a systematic review and meta-analysis of updated observational studies. MATERIALS/METHODS Using MEDLINE, PubMed, and Embase, a systematic literature search was conducted through February 2020 and the references of relevant articles were reviewed. A random-effects model was used to estimate the summary odds ratio/relative risk and 95% confidence interval (CI). Heterogeneity among studies was evaluated with I2 statistic. In total, 23 observational studies (19 cross-sectional studies, and four cohort studies) were included in the meta-analysis. RESULTS The pooled estimates (95% CI) for MetS per 25-nmol/L increment in serum vitamin D concentration were 0.80 (95% CI, 0.76–0.84; I2 = 53.5) in cross-sectional studies, and 0.85 (95% CI, 0.72–0.98; I2 = 85.8) in cohort studies. Similar results were observed, irrespectively of age of study population, study location, MetS criteria, and adjustment factors. There was no publication bias for the dose-response meta-analysis of serum vitamin D concentrations and MetS. CONCLUSIONS Dose-response meta-analysis demonstrated that a 25-nmol/L increment in the serum vitamin D concentration was associated with 20% and 15% lower risks of MetS in cross-sectional studies and cohort studies, respectively.
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Affiliation(s)
- Kyueun Lee
- Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Korea
| | - Jihye Kim
- Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Korea
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20
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Peng Z, Wang Y, Huang X, Zhu Q, Zhao Y, Xie H, Wu J. Dietary vitamin intake and risk of metabolic syndrome among centenarians in China. Exp Ther Med 2020; 21:105. [PMID: 33335568 DOI: 10.3892/etm.2020.9537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/17/2020] [Indexed: 01/07/2023] Open
Abstract
The present study aimed to investigate dietary vitamin intake levels and their association with the prevalence of obesity, hypertension, dyslipidemia and hyperglycemia in centenarians in China. From June 2014 to December 2016, a total of 992 centenarians aged >99 years (177 males and 815 females; age range, 100-115 years) were enrolled through household visits in the cities and rural areas of Hainan province. Details regarding food intake were recorded by continuous collection of 7-day food frequency and 24-h dietary review, and dietary vitamin intake levels were calculated according to the Chinese Food Composition Table. The deficiency rates of vitamin A (VA), VE, VB1, VB2, niacin and VC among the centenarians were relatively high and the prevalence of metabolic syndrome (MS) was 53.67% (519/967). The dietary intake levels of VA, VE and PP were significantly higher among the healthy centenarians than among the centenarians with MS (P<0.05). Compared with the lowest quartiles (Q1) of dietary vitamin intake, higher dietary intake levels of VA (Q4) [odds ratio (OR)=0.72; 95% CI: 0.38, 0.99], VE (Q3) (OR=0.61; 95% CI=0.36, 0.88) and VB2 (Q4) (OR=0.51; 95% CI: 0.32, 0.81) were associated with a reduced risk of hypertension (P<0.05). However, higher dietary intake levels of VA, VE, VB2 and PP were associated with increased risks of central obesity, hyperglycemia and low high-density lipoprotein cholesterol levels. A high prevalence of MS and vitamin deficiency were detected among the centenarians and these two items were associated with each other. It was indicated that specific vitamins are necessary for certain centenarians.
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Affiliation(s)
- Zhiqing Peng
- Department of Clinical Nutrition, Hainan Hospital of Chinese PLA General Hospital, Sanya, Hainan 572000, P.R. China
| | - Yanyan Wang
- Department of Healthcare, Hainan Hospital of Chinese PLA General Hospital, Sanya, Hainan 572000, P.R. China
| | - Xianyong Huang
- Department of Healthcare, Hainan Hospital of Chinese PLA General Hospital, Sanya, Hainan 572000, P.R. China
| | - Qiao Zhu
- Department of Central Laboratory, Hainan Hospital of Chinese PLA General Hospital, Sanya, Hainan 572000, P.R. China
| | - Yali Zhao
- Department of Central Laboratory, Hainan Hospital of Chinese PLA General Hospital, Sanya, Hainan 572000, P.R. China
| | - Hengge Xie
- Department of Geriatric Neurology, The Second Medical Center, Chinese PLA General Hospital/National Clinical Research Center for Geriatric Diseases, Beijing 100853, P.R. China
| | - Jianjun Wu
- Department of Healthcare, Hainan Hospital of Chinese PLA General Hospital, Sanya, Hainan 572000, P.R. China
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Lwow F, Bohdanowicz-Pawlak A. Vitamin D and selected cytokine concentrations in postmenopausal women in relation to metabolic disorders and physical activity. Exp Gerontol 2020; 141:111107. [PMID: 33038456 DOI: 10.1016/j.exger.2020.111107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 10/23/2022]
Abstract
Obesity and metabolic disturbances constitute significant health problems in elderly women. Due to the multifactorial background of these disorders, assessing the interaction between risk factors remains a significant part of prevention and health promotion. Studies have illustrated a relationship between low physical activity and vitamin D deficiency with obesity and its complications. Furthermore, vitamin D affects the production of adipokines and the inflammatory response in adipose tissue. The aim of our study was to determine the association between selected adipokines, vitamin D concentrations, physical activity (PA), and visceral adiposity index (VAI) in postmenopausal women. The study sample consisted of 318 ethnically homogenous postmenopausal women aged 50-60. Both anthropometric measurements (BMI, WC, WHR) and biochemical measurements (TC, HDL, LDL, TG, AIP, glucose, insulin, IL-6, TNF-α, adiponectin, leptin) were made, and PA by IPAQ were recorded. Body mass index (BMI), waist-to-hip ratio (WHR), HOMA, atherogenic index of plasma (AIP), and VAI were calculated using the standard formulas. We observed a negative correlation between BMI, WC, insulin, HOMA, and PA. We determined that there is a negative association between leptin and vitamin 25(OH)D concentrations (P = 0.007) and a positive association with adiponectin (P = 0.014). The results of the multiple linear regression analysis indicate that vitamin D and HOMA are independent factors that significantly affect leptin and adiponectin levels, contrary to VAI.
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Affiliation(s)
- Felicja Lwow
- Health Promotion Team, Faculty of Physiotherapy, University School of Physical Education in Wrocław, Al. Paderewskiego 35, 51-617 Wrocław, Poland.
| | - A Bohdanowicz-Pawlak
- Department of Endocrinology, Diabetology and Isotope Therapy, Wrocław Medical University, ul. Pasteur 4, 50-367 Wrocław, Poland.
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22
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Benedito-Silva AA, Evans S, Viana Mendes J, Castro J, Gonçalves BDSB, Ruiz FS, Beijamini F, Evangelista FS, Vallada H, Krieger JE, von Schantz M, Pereira AC, Pedrazzoli M. Association between light exposure and metabolic syndrome in a rural Brazilian town. PLoS One 2020; 15:e0238772. [PMID: 32946454 PMCID: PMC7500684 DOI: 10.1371/journal.pone.0238772] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 08/24/2020] [Indexed: 01/10/2023] Open
Abstract
Context Metabolic syndrome (MetS) is a complex condition comprising a ‘clustering’ of components representing cardiometabolic risk factors for heart disease and diabetes; its prevalence rate is high and consequences serious. Evidence suggests that light exposure patterns and misalignment of circadian rhythms might contribute to MetS etiology by impacting energy metabolism and glucose regulation. Objective We hypothesised that individuals with MetS would show disrupted circadian and sleep parameters alongside differences in light exposure profiles. We investigated this using data from a cohort study in Brazil. Methods Data from 103 individuals from the Baependi Heart Cohort Study aged between 50 and 70 were analysed. Motor activity and light exposure were measured using wrist-worn actigraphy devices. Cardiometabolic data were used to calculate the number of MetS components present in each participant, and participants grouped as MetS/non-MetS according to standard guidelines. Between-group comparisons were made for the actigraphy measures; additionally, correlation analyses were conducted. Results Motor activity and circadian profiles showed no differences between groups. However, the MetS group presented lower light exposure during the day and higher light exposure at night. Correlation analyses, including all participants, showed that greater daytime light exposure and greater light exposure difference between day and night were associated with reduced MetS risk (a lower number of MetS components). Also, the light exposure difference between day and night correlated with body mass index across all participants. Conclusions The observed results suggest a direct association between light exposure and MetS which appears to not be attributable to disruptions in circadian activity rhythm nor to sleep parameters. This link between light exposure patterns and MetS risk could inform possible prevention strategies.
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Affiliation(s)
| | - Simon Evans
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom
| | - Juliana Viana Mendes
- School of Arts, Science and Humanities, University of São Paulo, São Paulo, Brazil
| | - Juliana Castro
- School of Arts, Science and Humanities, University of São Paulo, São Paulo, Brazil
| | | | - Francieli S. Ruiz
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom
- Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | - Felipe Beijamini
- Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
- Federal University of Fronteira Sul (UFFS), Realeza, Brazil
| | | | - Homero Vallada
- Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | | | - Malcolm von Schantz
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom
| | - Alexandre C. Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Mario Pedrazzoli
- School of Arts, Science and Humanities, University of São Paulo, São Paulo, Brazil
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Nationwide vitamin D status in older Brazilian adults and its determinants: The Brazilian Longitudinal Study of Aging (ELSI). Sci Rep 2020; 10:13521. [PMID: 32782304 PMCID: PMC7419299 DOI: 10.1038/s41598-020-70329-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/20/2020] [Indexed: 12/28/2022] Open
Abstract
Little is known about vitamin D status in older adults in South America, where exposures to ultra-violet radiation are high. We examined the distribution of serum 25-hydroxyvitamin D (25OHD) concentration and its determinants in a nationally representative sample of Brazilians aged 50 years and older. Explanatory variables included environment and individuals’ characteristics from the ELSI baseline survey (2015–16). Among the 2,264 participants (mean age = 62.6 years), the geometric mean of 25OHD concentration was 66.8 nmol/L. The prevalence of vitamin D deficiency (< 30 nmol/L) and insufficiency (< 50 nmol/L) were 1.7% (95% CI 1.0, 2.8) and 16% (95% CI 12, 20), respectively. Mean concentrations were lower in those geographical regions situated at lower latitudes. Those at the oldest age, women, self-classified as Black and Brown, living in urban areas and current smokers were more likely to have vitamin D insufficiency, independent of each other and other relevant factors. In contrast, individuals who eat fish regularly were considerably less likely to present lower concentration. Based on these findings it is possible to estimate that about 875,000 older Brazilians have vitamin D deficiency and 7.5 million its insufficiency.
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24
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Liu L, Cao Z, Lu F, Liu Y, Lv Y, Qu Y, Gu H, Li C, Cai J, Ji S, Li Y, Zhao F, Shi X. Vitamin D deficiency and metabolic syndrome in elderly Chinese individuals: evidence from CLHLS. Nutr Metab (Lond) 2020; 17:58. [PMID: 32760432 PMCID: PMC7391611 DOI: 10.1186/s12986-020-00479-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 07/22/2020] [Indexed: 02/06/2023] Open
Abstract
Objectives Both low vitamin D status and metabolic syndrome (MetS) are worldwide concerns, and low 25-hydroxyvitamin D [25(OH)D] levels are associated with MetS; however, related epidemiological evidence based on elderly Chinese individuals, especially those over 80 years of age, is limited. In the present study, we aimed to evaluate the association between serum 25(OH)D and MetS in elderly Chinese individuals. Method Serum 25(OH)D was measured in a cross-sectional sample of 2493 elderly people aged 65–112 years from eight areas of China in which the density of centenarians is exceptionally high. MetS was diagnosed according to blood pressure, lipid, and blood sugar levels; waist circumference; and body mass index (BMI). Adjusted multivariable logistic regression was used to analyze the associations between vitamin D and MetS based on different diagnostic criterias. Results A total of 890 (35.7%) of the recruited elderly individuals had insufficient levels of vitamin D, and 1029 participants (41.3%) were vitamin D deficient. High serum vitamin D concentrations were associated with a low prevalence of MetS according to the modified Adult Treatment Panel III (ATP III) criteria for adequate versus deficient vitamin D levels (OR: 0.63, 95% CI: 0.45, 0.88) and inadequate versus deficient vitamin D levels (OR: 0.70, 95% CI: 0.52, 0.92). Each 10 ng/ml increase in serum vitamin D was significantly associated with a decreased prevalence of MetS according to the modified ATP III criteria for people with normal waist circumference (WC) (OR: 0.55, 95% CI: 0.43,0.71). However, no significant statistical correlation was found among elderly people with a high WC. Additionally, in the analysis of the individual components, the ORs of adequate versus deficient vitamin D levels were 0.46 (95% CI: 0.30, 0.71) for elevated triglycerides and 0.64 (95% CI: 0.42, 0.97) for reduced high-density lipoprotein cholesterol (HDL-C) after adjustment for other components. Conclusions Vitamin D deficiency is very common among elderly Chinese individuals. Vitamin D deficiency may be a risk factor for MetS; however, the association was only statistically significant among elderly people with noncentral obesity. Further studies are needed to examine the causal direction of the association.
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Affiliation(s)
- Ling Liu
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Zhaojin Cao
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Feng Lu
- Beijing Municipal Health Commission Information Center, (Beijing Municipal Health Commission Policy Research Center), Beijing, 100034 China
| | - Yingchun Liu
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Yuebin Lv
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Yingli Qu
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Heng Gu
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Chengcheng Li
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Jiayi Cai
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Saisai Ji
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Yawei Li
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Feng Zhao
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
| | - Xiaoming Shi
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #29 Nanwei Road, Xicheng, Beijing, 100050 China
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25
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The synergistic effects of vitamin D and estradiol deficiency on metabolic syndrome in Chinese postmenopausal women. ACTA ACUST UNITED AC 2020; 26:1171-1177. [PMID: 31188285 DOI: 10.1097/gme.0000000000001370] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Recent studies show that vitamin D (VitD) deficiency is associated with metabolic syndrome (MetS). Current evidence suggests that estrogen and VitD have similar physiological functions and potentially interact with bone health. We investigated the association between estradiol (E2) and 25-hydroxyvitamin-D [25(OH)D] with MetS and its components in Chinese postmenopausal women. METHODS In this cross-sectional study, we examined 616 postmenopausal women (aged 49-86 y) from southern China who were not taking estrogen and VitD/calcium supplements. At the end of data collection, serum E2 and 25(OH)D were measured for each participant. MetS was defined according to the 2006 International Diabetes Federation standard. RESULTS There was a positive correlation between 25(OH)D and E2. Higher 25(OH)D was associated with a favorable lipid profile, blood pressure, and glucose level. E2 was negatively associated with cholesterol, triglycerides, and blood pressure. The odds ratio for MetS was 2.19 (95% CI, 1.19-4.01, P value for trend=0.009) for deficient compared with sufficient women after multivariable adjustment. This association remained unchanged after further adjusting for E2 levels. After stratified analysis by VitD status, low E2 increased MetS risk in women with VitD deficiency (odds ratio = 3.49, 95% CI, 1.45-8.05 for the lowest vs the highest tertile). CONCLUSIONS These results suggest a synergistic role of VitD and E2 deficiency in MetS in Chinese postmenopausal women.
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Alfredsson L, Armstrong BK, Butterfield DA, Chowdhury R, de Gruijl FR, Feelisch M, Garland CF, Hart PH, Hoel DG, Jacobsen R, Lindqvist PG, Llewellyn DJ, Tiemeier H, Weller RB, Young AR. Insufficient Sun Exposure Has Become a Real Public Health Problem. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5014. [PMID: 32668607 PMCID: PMC7400257 DOI: 10.3390/ijerph17145014] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/01/2020] [Accepted: 07/04/2020] [Indexed: 12/13/2022]
Abstract
This article aims to alert the medical community and public health authorities to accumulating evidence on health benefits from sun exposure, which suggests that insufficient sun exposure is a significant public health problem. Studies in the past decade indicate that insufficient sun exposure may be responsible for 340,000 deaths in the United States and 480,000 deaths in Europe per year, and an increased incidence of breast cancer, colorectal cancer, hypertension, cardiovascular disease, metabolic syndrome, multiple sclerosis, Alzheimer's disease, autism, asthma, type 1 diabetes and myopia. Vitamin D has long been considered the principal mediator of beneficial effects of sun exposure. However, oral vitamin D supplementation has not been convincingly shown to prevent the above conditions; thus, serum 25(OH)D as an indicator of vitamin D status may be a proxy for and not a mediator of beneficial effects of sun exposure. New candidate mechanisms include the release of nitric oxide from the skin and direct effects of ultraviolet radiation (UVR) on peripheral blood cells. Collectively, this evidence indicates it would be wise for people living outside the tropics to ensure they expose their skin sufficiently to the sun. To minimize the harms of excessive sun exposure, great care must be taken to avoid sunburn, and sun exposure during high ambient UVR seasons should be obtained incrementally at not more than 5-30 min a day (depending on skin type and UV index), in season-appropriate clothing and with eyes closed or protected by sunglasses that filter UVR.
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Affiliation(s)
- Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden;
| | - Bruce K. Armstrong
- School of Population and Global Health, The University of Western Australia, Perth 6009, Australia;
| | - D. Allan Butterfield
- Department of Chemistry and Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY 40506, USA;
| | - Rajiv Chowdhury
- Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK;
| | - Frank R. de Gruijl
- Department of Dermatology, Leiden University Medical Centre, 2333 ZA Leiden, The Netherlands;
| | - Martin Feelisch
- Clinical & Experimental Sciences, University of Southampton Medical School and University Hospital Southampton NHS Foundation Trust, Southampton SO16 6YD, UK;
| | - Cedric F. Garland
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego School of Medicine, La Jolla, CA 92093, USA;
| | - Prue H. Hart
- Telethon Kids Institute, University of Western Australia, Perth 6872, Australia;
| | - David G. Hoel
- Department of Public Health Sciences, College of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Ramune Jacobsen
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark;
| | - Pelle G. Lindqvist
- Department of Clinical Science and Education, Karolinska Institute, 171 77 Stockholm, Sweden;
| | - David J. Llewellyn
- College of Medicine and Health, University of Exeter Medical School, Exeter EX1 2LU, UK;
| | - Henning Tiemeier
- Department of Social and Behavioral Science, Harvard T.H. Chan School of Public Health, Harvard University, Cambridge, MA 02115, USA;
| | - Richard B. Weller
- Centre for Inflammation Research, University of Edinburgh, Edinburgh EH16 4SB, UK;
| | - Antony R. Young
- St John’s Institute of Dermatology, King’s College London, London SE1 9RT, UK;
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Association of Hypovitaminosis D with Metabolic Syndrome in Postmenopausal Women. J Obstet Gynaecol India 2020; 70:184-188. [PMID: 32476763 DOI: 10.1007/s13224-020-01314-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 04/04/2020] [Indexed: 10/24/2022] Open
Abstract
The prevalence of vitamin D deficiency and metabolic syndrome is spreading like a pandemic globally; postmenopausal women are particularly vulnerable population. Hypovitaminosis D is reported to predispose to various components of metabolic syndrome like dyslipidemia, hypertension, diabetes and obesity. The purpose of this review is to highlight the recently published evidence, evaluating the association of vitamin D deficiency with metabolic syndrome in postmenopausal women. Besides, it emphasizes the long-term risks involved with low vitamin D levels and importance of vitamin D supplementation. Data were obtained from PubMed, Google Scholar and individual searches.
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28
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Weldegiorgis TZ, Hidru TH, Yang X, Xia Y, Ma L, Li H. Association between serum 25-hydroxyvitamin D concentrations and metabolic syndrome in the middle-aged and elderly Chinese population in Dalian, northeast China: A cross-sectional study. J Diabetes Investig 2020; 11:184-191. [PMID: 31145541 PMCID: PMC6944851 DOI: 10.1111/jdi.13086] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 05/07/2019] [Accepted: 05/25/2019] [Indexed: 02/06/2023] Open
Abstract
AIMS/INTRODUCTION To investigate the association between serum 25-hydroxyvitamin D (25-[OH]D) concentrations and metabolic syndrome (MetS) in the middle-aged and elderly Chinese population. METHODS The present study included 2,764 participants (aged >50 years). The joint interim statement was used for the standard definition of MetS. Serum 25-(OH)D concentrations were measured by electrochemiluminescence immunoassay. The study participants were categorized into quartiles based on serum 25-(OH)D concentrations, and the quartiles were calculated for the differences using anova and the χ2 -test for continuous and categorical data, respectively. A logistic regression analysis model was applied to estimate the odds ratios and 95% confidence intervals (95% CI) for each quartile of serum 25-(OH)D concentrations compared with the highest quartile. RESULTS Serum 25-(OH)D levels were markedly lower in men in the MetS group than in those without MetS. We observed a negative correlation between the higher quartiles of serum 25-(OH)D levels and the presence of MetS among men. The correlation between serum 25-(OH)D levels and the prevalence of MetS persisted even after adjusting for potential confounders, including age, cigarette smoking status, alcohol consumption, physical activity, low-density lipoprotein, creatinine and total serum cholesterol. Adjusted odds ratios of MetS in the second through fourth compared with the lowest quartile for serum 25-(OH)D levels were 0.93 (95% CI 0.54-1.59), 0.89 (95% CI 0.50-1.56) and 0.48 (95% CI 0.28-0.84), respectively. CONCLUSIONS Decreased serum 25-(OH)D level is significantly correlated with MetS in middle-aged men.
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Affiliation(s)
| | | | - Xiao‐lei Yang
- Department of CardiologyInstitute of Cardiovascular DiseasesFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Yun‐long Xia
- Department of CardiologyInstitute of Cardiovascular DiseasesFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Li Ma
- School of Public HealthDalian Medical UniversityDalianChina
| | - Hui‐Hua Li
- School of Public HealthDalian Medical UniversityDalianChina
- Department of CardiologyInstitute of Cardiovascular DiseasesFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
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29
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Queirós CS, Freitas JP. Sun Exposure: Beyond the Risks. Dermatol Pract Concept 2019; 9:249-252. [PMID: 31723456 DOI: 10.5826/dpc.0904a01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2019] [Indexed: 12/11/2022] Open
Abstract
Excessive solar exposure presents well-recognized risks and side effects, solar radiation being the most important environmental factor concerning skin cancer. In the last few years, several connections between solar exposure and prevention and/or treatment of several diseases have been discussed, with studies suggesting that regular solar exposure may be beneficial for conditions such as colorectal, breast, prostate, and pancreatic cancer; non-Hodgkin lymphoma; arterial hypertension; obesity; type 2 diabetes mellitus and metabolic syndrome; nonalcoholic hepatic steatosis; multiple sclerosis; Alzheimer disease; and several psychiatric disturbances. In most cases, UV radiation's beneficial effects are mediated through vitamin D; however, studies show that in other instances other mediators are responsible for these associations, specifically nitric oxide. Moderation is therefore essential, as a strict strategy of total sun avoidance may be inadequate.
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Affiliation(s)
- Catarina Soares Queirós
- Serviço de Dermatologia do Hospital de Santa Maria, Centro Hospitalar e Universitário de Lisboa Norte, Lisbon, Portugal
| | - João Pedro Freitas
- Serviço de Dermatologia do Hospital de Santa Maria, Centro Hospitalar e Universitário de Lisboa Norte, Lisbon, Portugal
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30
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Carrivick S, Alfonso H, Golledge J, Clancy P, Flicker L, Gunton JE, Hankey GJ, Almeida OP, Norman PE, Yeap BB. Differential associations of ferritin and 25-hydroxyvitamin D with fasting glucose and diabetes risk in community dwelling older men. Diabetes Metab Res Rev 2019; 35:e3172. [PMID: 30997951 DOI: 10.1002/dmrr.3172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/23/2019] [Accepted: 04/07/2019] [Indexed: 12/29/2022]
Abstract
AIMS We examined associations of ferritin and 25-hydroxyvitamin D with fasting glucose and prevalent diabetes in older men. METHODS Cross-sectional analysis of 4153 community-dwelling men aged 70 to 89 years in Western Australia. Plasma ferritin, 25-hydroxyvitamin D, and glucose were assayed. Diabetes was ascertained from self-report, medications, and fasting glucose. RESULTS There were 577 men with diabetes (13.9%). In the whole cohort, ferritin was associated with fasting glucose (0.051 mmol/L per 1 SD increase in ferritin, P = .006) and 25-hydroxyvitamin D was inversely associated (-0.085 mmol/L per 1 SD, P < .001). Ferritin was not associated with prevalent diabetes (highest vs. lowest quartile; >225 vs <66 μg/L: adjusted odds ratio [OR] 0.97, 95% confidence interval [CI], 0.74-1.27, P = .83). Higher vitamin D was associated with decreased odds of prevalent diabetes (highest vs lowest quartile; >82 nmol/L vs <53 nmol/L: OR = 0.57, 95% CI = 0.43-0.75, P < .001). There was no interaction between ferritin and vitamin D on diabetes risk. CONCLUSIONS In older men, ferritin is associated with fasting glucose but not prevalent diabetes. Higher 25-hydroxyvitamin D concentrations are independently associated with lower fasting glucose and reduced risk of diabetes. Clinical trials are required to determine whether interventions, which raise vitamin D concentrations, would reduce incidence of diabetes in this expanding demographic group.
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Affiliation(s)
- Simon Carrivick
- Medical School, University of Western Australia, Perth, Australia
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, Australia
| | - Helman Alfonso
- School of Public Health, Curtin University, Perth, Australia
| | - Jonathan Golledge
- Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine, James Cook University, Townsville, Australia
- Department of Vascular and Endovascular Surgery, Townsville Hospital, Townsville, Australia
| | - Paula Clancy
- Health Practitioners And Researchers Together-Blood Endothelium And Tissue (HART-BEAT), Townsville Hospital, Townsville, Australia
| | - Leon Flicker
- Medical School, University of Western Australia, Perth, Australia
- Western Australian Centre for Health and Ageing, Centre for Medical Research, University of Western Australia, Perth, Australia
| | - Jenny E Gunton
- Westmead Hospital, The University of Sydney, Sydney, Australia
| | - Graeme J Hankey
- Medical School, University of Western Australia, Perth, Australia
| | - Osvaldo P Almeida
- Medical School, University of Western Australia, Perth, Australia
- Western Australian Centre for Health and Ageing, Centre for Medical Research, University of Western Australia, Perth, Australia
| | - Paul E Norman
- Medical School, University of Western Australia, Perth, Australia
| | - Bu B Yeap
- Medical School, University of Western Australia, Perth, Australia
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, Australia
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31
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Vitamin D Status and Components of Metabolic Syndrome in Older Subjects from Northern Finland (Latitude 65°North). Nutrients 2019; 11:nu11061229. [PMID: 31151163 PMCID: PMC6628213 DOI: 10.3390/nu11061229] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Vitamin D deficiency has been linked to the increased risk of several chronic diseases, especially in people living in the Northern Latitudes. The aim of this study was to assess the vitamin D status in older subjects born in 1945 in Northern Finland (latitude 65°North), and to examine its associations to components of metabolic syndrome (MetS). METHODS In this cross-sectional study, we invited 904 subjects born in 1945 from the Oulu region (Oulu45 cohort), out of an original cohort of 1332 subjects. In the cohort, plasma 25 hydroxyvitamin D (25OHD) levels were determined by an enzyme immunoassay of 263 men and 373 women, with a mean age baseline of 69±0.5 years old. We assessed the participants' usage of vitamin D supplements, as well as their lifestyle factors, using a questionnaire. RESULTS Nearly 80% of the subjects had low vitamin D levels [either vitamin D deficient (<50 nmol/L) or insufficient (50 - 75 nmol/L)], and only 20% of the participants had sufficient vitamin D levels (>75 nmol/L) (based on the American Endocrine Society guidelines). The low vitamin D status was associated with a high prevalence of MetS; a significantly higher number of subjects with MetS (41%) had low vitamin D levels in comparison to the non-MetS subjects (38%) (p ≤ 0.05). The subjects under vitamin D supplementation had a significantly lower incidence of MetS (42.6% vs 57.4%) and its components in comparison to the non-supplemented subjects (p ≤ 0.05). CONCLUSIONS Low vitamin D levels are a risk factor for MetS amongst other lifestyle factors, such as dietary habits and physical inactivity, among older subjects in the Northern Latitudes (65°North). Optimal supplementation of vitamin D, along with rich dietary sources of vitamin D, are highly recommended for older subjects as a means to positively affect, e.g., hypertension, insulin resistance, and obesity, as components of the MetS.
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32
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Simas LAW, Zanatta LCB, Moreira CA, Borba VZC, Boguszewski CL. Body composition and nutritional and metabolic parameters in postmenopausal women sufficient, insufficient and deficient in vitamin D. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2019; 63:265-271. [PMID: 31038588 PMCID: PMC10522206 DOI: 10.20945/2359-3997000000121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 02/09/2019] [Indexed: 11/23/2022]
Abstract
OBJECTIVE We investigated changes in body composition and nutritional and metabolic parameters in a group of postmenopausal women who were classified as sufficient, insufficient and deficient in vitamin D. SUBJECTS AND METHODS A total of 106 postmenopausal women were included in this cross-sectional study and classified according to their serum levels of 25-OH-vitamin D as sufficient (≥ 30 ng/mL; group S), insufficient (20.1 and 29.9 ng/mL; group I) or deficient (≤ 20 ng/mL; group D) in vitamin D. Body composition was measured by dual-energy X-ray absorptiometry (DXA); dietary recall questionnaires were completed; and blood samples were analysed to compare the metabolic and nutritional status of the study groups. RESULTS Eleven (10.4%) of the women were classified in group S, 50 (47.2%) in group I and 45 (42.4%) in group D, with a mean serum level for 25-OH-D of 21.1 ± 7.0 ng/mL in all participants. Body composition did not differ among the groups. Serum levels of 25-OH-D were negatively correlated with serum levels of triglycerides, total cholesterol and LDL cholesterol. CONCLUSIONS Vitamin D insufficiency and deficiency were highly prevalent in our group of postmenopausal women, showing an association with an unfavourable lipid profile.
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Affiliation(s)
- Luisa Amábile Wolpe Simas
- Universidade Federal do ParanáServiço de Endocrinologia e MetabologiaDepartamento de Medicina InternaUniversidade Federal do ParanáCuritibaPRBrasil Serviço de Endocrinologia e Metabologia (SEMPR), Departamento de Medicina Interna , Universidade Federal do Paraná , Curitiba , PR , Brasil
| | - Leila Caroline Bianchet Zanatta
- Universidade Federal do ParanáServiço de Endocrinologia e MetabologiaDepartamento de Medicina InternaUniversidade Federal do ParanáCuritibaPRBrasil Serviço de Endocrinologia e Metabologia (SEMPR), Departamento de Medicina Interna , Universidade Federal do Paraná , Curitiba , PR , Brasil
| | - Carolina Aguiar Moreira
- Universidade Federal do ParanáServiço de Endocrinologia e MetabologiaDepartamento de Medicina InternaUniversidade Federal do ParanáCuritibaPRBrasil Serviço de Endocrinologia e Metabologia (SEMPR), Departamento de Medicina Interna , Universidade Federal do Paraná , Curitiba , PR , Brasil
| | - Victoria Zeghbi Cochenski Borba
- Universidade Federal do ParanáServiço de Endocrinologia e MetabologiaDepartamento de Medicina InternaUniversidade Federal do ParanáCuritibaPRBrasil Serviço de Endocrinologia e Metabologia (SEMPR), Departamento de Medicina Interna , Universidade Federal do Paraná , Curitiba , PR , Brasil
| | - Cesar Luiz Boguszewski
- Universidade Federal do ParanáServiço de Endocrinologia e MetabologiaDepartamento de Medicina InternaUniversidade Federal do ParanáCuritibaPRBrasil Serviço de Endocrinologia e Metabologia (SEMPR), Departamento de Medicina Interna , Universidade Federal do Paraná , Curitiba , PR , Brasil
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Pooyan S, Rahimi MH, Mollahosseini M, Khorrami-Nezhad L, Maghbooli Z, Mirzaei K. The Association between Vitamin D Deficiency and variants of Vitamin D Binding protein gene among Healthy Iranian Adults. INT J VITAM NUTR RES 2019; 90:249-256. [PMID: 30987555 DOI: 10.1024/0300-9831/a000580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background: The high prevalence of vitamin D deficiency may be due to both genetic and environment factors. The aim of this study was to demonstrate that vitamin D deficiency may be due to variants of vitamin D binding protein (DBP) among otherwise healthy Iranian adults. Methods: This cross-sectional study was conducted on 265 healthy adults in Tehran. Anthropometric and biochemical parameters were assessed. Dietary vitamin D intake was assessed with a Food Frequency Questionnaire (FFQ), and participant DBP genotypes were determined by polymerase chain reactions - restriction fragment length polymorphism. Results: Significant associations were found between vitamin D status and low-density lipoprotein cholesterol (P < 0.001), total cholesterol (P < 0.001), and fasting blood sugar (P < 0.001), after adjustment for confounder factors. This study demonstrated that "rs7041" gene was associated with vitamin D deficiency (OR = 0.63, β ± SE = -0.46 ± 0.14, P < 0.0001). After considering the "GG" genotype of the "rs7041" polymorphism as a reference, the prevalence of vitamin D deficiency was found to be higher in the individuals with "TT" genotype from the "rs7041" polymorphism. Conclusion: It was found that the prevalence of vitamin D deficiency was higher in individuals with T allele carriers in the "rs7041" polymorphism.
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Affiliation(s)
- Sara Pooyan
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad Hossein Rahimi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mehdi Mollahosseini
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Leila Khorrami-Nezhad
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Zhila Maghbooli
- Multiple Sclerosis Research Center, Neuroscience Institute of Tehran University of Medical Sciences, Tehran, Iran
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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Lee SJ, Lee EY, Lee JH, Kim JE, Kim KJ, Rhee Y, Kim HC, Youm Y, Kim CO. Associations of serum 25-hydroxyvitamin D with metabolic syndrome and its components in elderly men and women: the Korean Urban Rural Elderly cohort study. BMC Geriatr 2019; 19:102. [PMID: 30975093 PMCID: PMC6458686 DOI: 10.1186/s12877-019-1118-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 03/25/2019] [Indexed: 01/07/2023] Open
Abstract
Background Many studies have investigated the association between vitamin D and metabolic syndrome (MetS). However, few studies have investigated the association stratified by sex in the elderly. Therefore, we aimed to evaluate the association between vitamin D, MetS, and its components in Korean elderly men and women. Methods A total of 987 men and 1949 women aged ≥65 years were recruited through Korean Urban Rural Elderly cohort study. Serum 25-hydroxyvitamin D (25(OH)D) levels were categorized into 4 quartiles and all data were analyzed separately by sex. MetS was defined by the revised criteria of the National Cholesterol Education Program Adult Treatment Panel III. Results The participants in the lowest quartile of serum 25(OH)D showed a significant increase in the prevalence of high waist circumference, elevated triglyceride level, and low high-density lipoprotein cholesterol level, as well as MetS itself, in both men and women in a univariate analysis. After adjusting for potential confounders including age, smoking status, drinking status, exercise status, region of residence, seasonality, and parathyroid hormone level, the lowest 25(OH)D quartile group was associated with a higher risk of MetS (odds ratio [OR] 2.25, 95% confidence interval [CI] 1.48–3.43 in men and OR 1.65, 95% CI 1.27–2.16 in women) compared to the highest 25(OH)D quartile group as the reference group. However, no significant association was found between serum 25(OH)D levels and the prevalence of MetS components including hyperglycemia or hypertension in both men and women. Conclusions Low 25(OH)D levels were associated with increased odds of MetS; in particular, they were associated with MetS components of high waist circumference, hypertriglyceridemia, and low high-density lipoprotein-cholesterol, after adjusting for age, smoking, alcohol, exercise, region of residency, and seasonality, in men and women over 65 years old. Electronic supplementary material The online version of this article (10.1186/s12877-019-1118-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Su Jin Lee
- Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, South Korea.,Department of Preventive Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Eun Young Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jung Hyun Lee
- Department of Preventive Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Jong Eun Kim
- Graduate School of Public Health Yonsei University, Seoul, South Korea
| | - Kwang Joon Kim
- Division of Geriatrics, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03772, Republic of Korea
| | - Yumie Rhee
- Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Yoosik Youm
- Department of Sociology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Chang Oh Kim
- Division of Geriatrics, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03772, Republic of Korea.
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Durgarao Y, Manjrekar PA, Adhikari P, Chakrapani M, Rukmini MS. Comprehensive Review on Diabetes Associated Cardiovascular Complications - The Vitamin D Perspective. Cardiovasc Hematol Disord Drug Targets 2019; 19:139-153. [PMID: 30648528 DOI: 10.2174/1871529x19666190114155302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 11/14/2018] [Accepted: 11/28/2018] [Indexed: 12/14/2022]
Abstract
Vitamin D, a steroid hormone is primarily known for its role in calcium and bone mineral homeostasis. Over the years, vitamin D has been implicated in various non-skeletal diseases. The extraskeletal phenomenon can be attributed to the presence of vitamin D receptors (VDRs) in almost all cells and identification of 1-α hydroxylase in extrarenal tissues. The vitamin D deficiency (VDD) pandemic was globally reported with increasing evidence and paralleled the prevalence of diabetes, obesity and cardiovascular diseases (CVDs). A dependent link was proposed between hypovitaminosis D glycemic status, insulin resistance and also the other major factors associated with type 2 diabetes leading to CVDs. Insulin resistance plays a central role in both type 2 diabetes and insulin resistance syndrome. These 2 disorders are associated with distinct etiologies including hypertension, atherogenic dyslipidemia, and significant vascular abnormalities that could lead to endothelial dysfunction. Evidence from randomised clinical trials and meta-analysis, however, yielded conflicting results. This review summarizes the role of vitamin D in the regulation of glucose homeostasis with an emphasis on insulin resistance, blood pressure, dyslipidaemia, endothelial dysfunction and related cardiovascular diseases and also underline the plausible mechanisms for all the documented effects.
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Affiliation(s)
- Y Durgarao
- Department of Biochemistry, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Poornima A Manjrekar
- Department of Biochemistry, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Prabha Adhikari
- Department of Internal Medicine, Yenepoya University, Mangalore, Karnataka, India
| | - M Chakrapani
- Department of Internal Medicine, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - M S Rukmini
- Department of Biochemistry, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
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Hoel DG, de Gruijl FR. Sun Exposure Public Health Directives. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E2794. [PMID: 30544646 PMCID: PMC6313493 DOI: 10.3390/ijerph15122794] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/02/2018] [Accepted: 12/03/2018] [Indexed: 12/14/2022]
Abstract
There have been many public health recommendations for avoiding UV radiation exposures. This is primarily due to concerns about skin cancer and especially melanoma, the most serious type of skin cancer. However, UV radiation is also known as the primary source of vitamin D and other compounds needed for good health. This brief commentary lists several of the many important recent studies of adverse health effects associated with low sun exposure, including some specific cancers, multiple sclerosis, diabetes, cardiovascular disease, autism, Alzheimer's disease, and age-related macular degeneration. Our conclusion is that non-burning UV exposure is a health benefit and-in moderation-should be recommended as such.
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Affiliation(s)
- David G Hoel
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC 29425, USA.
| | - Frank R de Gruijl
- Department of Dermatology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
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Rashidbeygi E, Rahimi MH, Mollahosseini M, Yekaninejad MS, Imani H, Maghbooli Z, Mirzaei K. Associations of vitamin D status and metabolic dyslipidemia and hypertriglyceridemic waist phenotype in apparently healthy adults. Diabetes Metab Syndr 2018; 12:985-990. [PMID: 29983347 DOI: 10.1016/j.dsx.2018.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 06/06/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recent studies have shown that Vitamin D deficiency is very common globally. Vitamin D deficiency is associated with lipid metabolism. A relationship between vitamin D levels and waist circumference (WC) has been observed. The purpose of this study is to evaluate the relationship between vitamin D status and metabolic dyslipidemia and the hypertriglyceridemic waist phenotype. METHODS This cross-sectional study was conducted on 265 healthy Tehran adults. Hypertriglyceridemic waist phenotype (HTGWP) was described as serum triacylglycerol concentrations >150 mg/dL and concurrent WC > 88 cm (women) and >102 cm (men). Dyslipidemia was defined as: 1) TG level of >150 mg/dL 2) HDL > 40 mg/dL for men or >50 mg/dL for women, as has been previously described. RESULTS Current study's results demonstrated that HTGWP was significantly associated with weight, age, WC, hip, fat percent, TG, lipid profile, ALT and BMI. We found 77% reduction in the chances of developing metabolic dyslipidemia in suficient satus of vitamin D in compare to deficiency, although the significancy was mariginal, OR: 0.33, 95% CI of 0.09 to 1.21, P = 0.09. However, our results revealed that vitamin D deficiency, compared with normal status, can increase the risk of phenotype 1 (high TG/high WC); OR: 3.86 and 95% CI from 0.86 to 0.99, p for trend = 0.05. CONCLUSIONS Significant associations were found between vitamin D status and HTGWP. In addition, there was a relationship between vitamin D and lipid profiles. There is a direct correlation between TG and waist circumference in insulin resistance in healthy Tehran adults.
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Affiliation(s)
- Elaheh Rashidbeygi
- Department of Community Nutrition, School of Nutrition and Food Science, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad Hossein Rahimi
- Department of Community Nutrition, School of Nutrition and Food Science, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mehdi Mollahosseini
- Department of Community Nutrition, School of Nutrition and Food Science, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mir Saeed Yekaninejad
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hossein Imani
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Zhila Maghbooli
- MS Research Center, Neurosciences Institute of Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
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Rafiq S, Jeppesen PB. Body Mass Index, Vitamin D, and Type 2 Diabetes: A Systematic Review and Meta-Analysis. Nutrients 2018; 10:nu10091182. [PMID: 30154381 PMCID: PMC6164132 DOI: 10.3390/nu10091182] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 08/22/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023] Open
Abstract
The deficiency of vitamin D is prevalent all over the world. Studies have shown that vitamin D may play an important role in the development of obesity. The current study was conducted to quantitatively evaluate the association between serum 25-(OH) vitamin D levels and the risk of obesity in both diabetic and non-diabetic subjects. A systematic review and meta-analysis of observational studies was carried out for that purpose. We searched the Medline, PubMed, and Embase databases throughout all of March 2018. A total of fifty five observational studies for both diabetic and non-diabetic subjects were finally included in the meta-analysis. The data were analyzed by comprehensive meta-analysis software version 3 and the random effects model was used to analyze the data. The meta-analysis showed an overall inverse relationship between serum vitamin D status and body mass index (BMI) in studies of both diabetic (r = −0.173, 95% = −0.241 to −0.103, p = 0.000) and non-diabetic (r = −0.152, 95% = −0.187 to −0.116, p = 0.000) subjects. The evidence of publication bias was not found in this meta-analysis. In conclusion, the deficiency of vitamin D is associated with an increased level of BMI in the studies of both diabetic and non-diabetic subjects. Reliable evidence from well-designed future randomized controlled trials is required to confirm the findings from observational studies and to find out the potential regulatory effects of vitamin D supplementation to lower BMI.
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Affiliation(s)
- Shamaila Rafiq
- Department of Clinical Medicine Aarhus University, 8200 Aarhus, Denmark.
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Kim SH, Oh JE, Song DW, Cho CY, Hong SH, Cho YJ, Yoo BW, Shin KS, Joe H, Shin HS, Son DY. The factors associated with Vitamin D deficiency in community dwelling elderly in Korea. Nutr Res Pract 2018; 12:387-395. [PMID: 30323906 PMCID: PMC6172170 DOI: 10.4162/nrp.2018.12.5.387] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/04/2018] [Accepted: 07/18/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND/OBJECTIVES Recent studies showed vitamin D deficiency is linked to chronic diseases in addition to skeletal metabolism which could threaten the elderly. We analyzed health conditions and socio-demographic factors associated with vitamin D deficiency in community dwelling people aged 65 years and older. SUBJECTS/METHOD Data from the Korea National Health and Nutrition Examination Survey (KNHANES) 2010 to 2012 were obtained. A total of 2,687 subjects aged 65 years and older were participated. The cutoff value of the Vitamin D deficiency was considered as serum 25-hydroxyvitamin D [25(OH)D] ≤ 20 ng/mL (50 nmol/L). RESULTS The overall prevalence rate of vitamin D deficiency in the elderly was 62.1%. The factors such as female, obesity, metabolic syndrome, current smoker, and skipping breakfast were positively associated with vitamin D deficiency, but high intensity of physical activity and more than 9 hours of sleep duration were negatively associated with vitamin D deficiency (all P < 0.05). CONCLUSIONS It is important that health professions know that the factors proved in this study are connected to vitamin D deficiency thus provide information and intervention strategies of vitamin D deficiency to old aged people.
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Affiliation(s)
- Sun Hea Kim
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Donagnam-gu, Cheonan-si, Chungnam 31151, Korea
| | - Jung Eun Oh
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Donagnam-gu, Cheonan-si, Chungnam 31151, Korea
| | - Dong Won Song
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Donagnam-gu, Cheonan-si, Chungnam 31151, Korea
| | - Choo Yon Cho
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea
| | - Sung Ho Hong
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea
| | - Yong Jin Cho
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Donagnam-gu, Cheonan-si, Chungnam 31151, Korea
| | - Byung Wook Yoo
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea
| | - Kyung Suk Shin
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Gumi Hospital, Gyeongbuk 39371, Korea
| | - Hyun Joe
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea
| | - Hwang Sik Shin
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Donagnam-gu, Cheonan-si, Chungnam 31151, Korea
| | - Doo Yong Son
- Department of Family Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Gumi Hospital, Gyeongbuk 39371, Korea
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Suryanarayana P, Arlappa N, Sai Santhosh V, Balakrishna N, Lakshmi Rajkumar P, Prasad U, Raju BB, Shivakeseva K, Divya Shoshanni K, Seshacharyulu M, Geddam JB, Prasanthi PS, Ananthan R. Prevalence of vitamin D deficiency and its associated factors among the urban elderly population in Hyderabad metropolitan city, South India. Ann Hum Biol 2018; 45:133-139. [PMID: 29307228 DOI: 10.1080/03014460.2018.1425479] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Deficiency of vitamin D has been associated with various health conditions. However, vitamin D deficiency (VDD) and factors associated with VDD are not well studied, especially among the urban elderly population of India. AIM To assess the prevalence of VDD and its associated factors among the urban free-living elderly population in Hyderabad. SUBJECTS AND METHODS A community-based cross-sectional study was conducted among 298 urban elderly (≥60 years) by adapting a random sampling procedure. Demographic particulars were collected. Blood pressure and anthropometric measurements were recorded using standard equipment. Fasting glucose, lipid profile and 25-hydroxy vitamin D [25(OH) D] were estimated in plasma samples. RESULTS The mean ± SE plasma vitamin D and the prevalence of VDD among the urban elderly population were 19.3 ± 0.54 (ng/ml) and 56.3%, respectively. The prevalence of VDD was significantly associated with education, high body mass index (BMI), hypertension (HT) and metabolic syndrome (MS). Multiple logistic regression analysis revealed HT as a significant predictor of vitamin D deficiency and the risk of VDD was double among the elderly with hypertension. CONCLUSIONS The prevalence of VDD was high among the urban elderly population in the south Indian city of Hyderabad. High BMI, MS, HT and education are significant associated factors of VDD.
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Affiliation(s)
- Palla Suryanarayana
- a Lipid Chemistry Division , National Institute of Nutrition , Hyderabad , India
| | | | | | - Nagalla Balakrishna
- c Statistical Division , National Institute of Nutrition , Hyderabad , India
| | | | | | | | - Kommula Shivakeseva
- a Lipid Chemistry Division , National Institute of Nutrition , Hyderabad , India
| | | | | | | | | | - Rajendran Ananthan
- e Food Chemistry Division , National Institute of Nutrition , Hyderabad , India
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Karonova T, Grineva E, Belyaeva O, Bystrova A, Jude EB, Andreeva A, Kostareva A, Pludowski P. Relationship Between Vitamin D Status and Vitamin D Receptor Gene Polymorphisms With Markers of Metabolic Syndrome Among Adults. Front Endocrinol (Lausanne) 2018; 9:448. [PMID: 30166978 PMCID: PMC6106967 DOI: 10.3389/fendo.2018.00448] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/20/2018] [Indexed: 01/05/2023] Open
Abstract
Introduction: Recent studies have demonstrated that vitamin D deficiency contributes to the development of metabolic disorders, including obesity and type 2 diabetes mellitus (T2DM). Several vitamin D receptor (VDR) gene polymorphisms had been described to play a role in these conditions since vitamin D receptors were found in many tissues. The aim of this study was to assess the relationship between vitamin D status and VDR gene polymorphisms with metabolic syndrome (MS) parameters in Russian middle-aged women. Materials and Methods: A total of 697 women aged between 30 to 55 years were included in this cross-sectional study. Serum 25-hydroxyvitamin D (25(OH)D) level and four VDR gene polymorphisms rs1544410 (BsmI), rs7975232 (ApaI), rs731236 (TaqI), and rs2228570 (FokI) were measured. We applied the International Diabetes Federation (IDF) criteria to identify subjects with MS. Results: 9.3% of subjects had normal vitamin D level, while 90.7% were insufficient or deficient. Abdominal obesity (AO) was seen in 75.5%, impaired glucose tolerance (IGT) or T2DM was observed in 33.3%, reduced high-density lipoprotein cholesterol (HDL-C) level in 32.2% and hypertriglyceridemia in 23.4%. Serum 25(OH)D level in women with or without MS did not differ (48.6 ± 1.8 and 51.1 ± 1.5 nmol/l, p > 0.05). Subjects with vitamin D deficiency showed an increased risk of AO [CI 95% 2.23; 1.15-4.30] and low HDL-C [CI95% 2.60; 1.04-6.49] compared to subjects with normal 25(OH)D level. IGT and T2DM risk was increased only when 25(OH)D concentration was less than 39.0 nmol/l [CI 95% 7.17; 2.99-17.7], but risk of MS did not differ in normal vitamin D status subjects and insufficient/deficient ones (p > 0.05). T allele carriers (A) of rs7975232 had higher total cholesterol and low-density lipoprotein cholesterol levels compared with the GG (aa) genotypes. Similarly, GG (BB) genotype carriers of rs1544410 had higher triglyceride levels than subjects with A (b) allele carriers. However VDR gene polymorphisms did not seem to be associated with an increased risk of MS. Conclusions: Vitamin D deficiency, rs7975232, and rs1544410 VDR gene variants are associated with MS parameters in Russian middle-aged women.
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Affiliation(s)
- Tatiana Karonova
- Institute of Endocrinology, Almazov National Medical Research Centre, St. Petersburg, Russia
- Internal Medicine Department, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
- *Correspondence: Tatiana Karonova
| | - Elena Grineva
- Institute of Endocrinology, Almazov National Medical Research Centre, St. Petersburg, Russia
- Internal Medicine Department, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Olga Belyaeva
- Internal Medicine Department, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Anna Bystrova
- Institute of Endocrinology, Almazov National Medical Research Centre, St. Petersburg, Russia
- Internal Medicine Department, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Edward B. Jude
- Tameside Hospital NHS Foundation Trust, Ashton Under Lyne, United Kingdom
| | - Alena Andreeva
- Institute of Endocrinology, Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Anna Kostareva
- Institute of Molecular Biology and Genetics, Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Pawel Pludowski
- Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children's Memorial Health Institute, Warsaw, Poland
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The association of vitamin D status and dietary calcium intake with individual components of the metabolic syndrome: a population-based study in Victoria, Australia. Cardiovasc Endocrinol 2017; 6:136-144. [PMID: 31646131 DOI: 10.1097/xce.0000000000000133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/26/2017] [Indexed: 02/04/2023] Open
Abstract
This study examined the associations between 25-hydroxyvitamin D (25-OHD), dietary calcium (Ca) intake, and individual components of the metabolic syndrome (MetS). Methods We analyzed a population-based sample of 18-75-year-old adults (n=3387) from the Victorian Health Monitor survey. Results After adjustment for sociodemographic, physical, and dietary factors, as well as other MetS components, every 10 nmol/l increment in 25-OHD was associated with reduced adjusted odds ratio (AOR) of elevated triglycerides (TG) [AOR: 0.79, 95% confidence interval (CI): 0.74-0.84, P<0.001], and higher fasting plasma glucose (AOR: 0.91, 95% CI: 0.86-0.96, P=0.002). After adjustment for confounders, every 500 mg/day increment in dietary Ca intake significantly reduced the odds of elevated diastolic blood pressure (AOR: 0.80, 95% CI: 0.66-0.99, P=0.038). When nine combinations of 25-OHD and Ca tertiles were examined, certain combinations were associated with reduced AOR for elevated TG (P<0.001), when referenced against the combination of low 25-OHD (median: 33 nmol/l) and low Ca (median: 579 mg/day). At low 25-OHD, increasing Ca intake decreased the AOR for low high-density lipoprotein cholesterol in a dose-dependent manner, but at high 25-OHD; such effects of Ca were blunted. Conclusion Higher vitamin D status and Ca intake or their combination were associated with reduced odds for a number of individual MetS components.
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Piantanida E, Gallo D, Veronesi G, Dozio E, Trotti E, Lai A, Ippolito S, Sabatino J, Tanda ML, Toniolo A, Ferrario M, Bartalena L. Cardiometabolic healthy and unhealthy obesity: does vitamin D play a role? Endocr Connect 2017; 6:943-951. [PMID: 29089365 PMCID: PMC5717541 DOI: 10.1530/ec-17-0304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 10/31/2017] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The aim of this observational study was to clarify the link between vitamin D status and metabolic syndrome (MetS) in people with visceral obesity. DESIGN AND METHODS One hundred ninety-six consecutive patients (152 women; mean age 51 ± 13 years) with visceral obesity (mean body weight 103 ± 20 kg, mean waist circumference (WC) 119 ± 13 cm) were enrolled at the Obesity Outpatient Clinic of the University of Insubria in Varese. Anthropometric measurements were recorded. Laboratory tests, including vitamin D (25(OH)D)), fasting blood glucose (FBG), lipid profile, liver and kidney function tests were assessed. Vitamin D status was defined according to the European Society of Endocrinology guidelines, MetS to the 2009 harmonized definition. RESULTS An inverse association emerged among 25(OH)D, body mass index (BMI) (P = 0.001) and WC (all P = 0.003). Serum 25(OH)D levels were inversely related to FBG and systolic blood pressure (SBP) (respectively, P = 0.01 and 0.02). Median serum 25(OH)D levels were 13.3 ng/mL (CI 95% 12; 15) in MetS and 16 ng/mL (CI 95% 14; 18) (P = 0.01) in non-MetS patients. Among patients with MetS, lower 25(OH)D concentrations were related to higher risk of hypertension (HT) (odds ratio (OR) 1.7, CI 95%, 0.7;4) and hyperglycemia (IFG)/type 2 diabetes (OR 5.5, CI 95% 2; 14). CONCLUSION Vitamin D status and MetS are inversely correlated in visceral obesity, particularly with regard to glucose homeostasis and BP. More extensive studies are required to investigate the potential for causality.
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Affiliation(s)
- Eliana Piantanida
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Daniela Gallo
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Giovanni Veronesi
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
- Research Center in Epidemiology and Preventive Medicine (EPIMED)University of Insubria, Varese, Italy
| | - Eugenia Dozio
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Eugenia Trotti
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Adriana Lai
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Silvia Ippolito
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Jessica Sabatino
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Maria Laura Tanda
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
| | - Antonio Toniolo
- Department of Biotechnology and Life ScienceUniversity of Insubria, Varese, Italy
| | - Marco Ferrario
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
- Research Center in Epidemiology and Preventive Medicine (EPIMED)University of Insubria, Varese, Italy
| | - Luigi Bartalena
- Department of Medicine and SurgeryUniversity of Insubria, Varese, Italy
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Schmitt EB, Nahas-Neto J, Bueloni-Dias F, Poloni PF, Orsatti CL, Petri Nahas EA. Vitamin D deficiency is associated with metabolic syndrome in postmenopausal women. Maturitas 2017; 107:97-102. [PMID: 29169589 DOI: 10.1016/j.maturitas.2017.10.011] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/11/2017] [Accepted: 10/13/2017] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To evaluate the association between vitamin D (VD) deficiency and risk factors for metabolic syndrome (MetS) in postmenopausal women. STUDY DESIGN Observational, cross-sectional cohort study. MAIN OUTCOME MEASURES In this study, 463 women, aged 45-75 years, with amenorrhea >12months, without VD supplementation or established cardiovascular disease were included. Clinical and anthropometric data were collected. Biochemical parameters, including total cholesterol (TC), HDL, LDL, triglycerides, glucose, insulin and 25-hydroxyvitamin-D [25(OH)D] were measured. Women meeting three or more of the following criteria were diagnosed with MetS: waist circumference >88cm, triglycerides ≥150mg/dL, HDL <50mg/dL, blood pressure ≥130/85mmHg and glucose ≥100mg/dL. Serum 25(OH)D levels were classified as sufficient (≥30ng/mL), insufficient (20-29ng/mL) or deficient (<20ng/mL). ANOVA, chi-square test and logistic regression (odds ratio, OR) were used for statistical analysis. RESULTS Serum 25(OH)D levels were sufficient in 148 women (32.0%), insufficient in 151 (32.6%) and deficient in 164 (35.4%). Women with low 25(OH)D levels had higher TC, triglycerides, insulin and HOMA-IR levels (p<0.05). MetS was detected in 57.8% (182/315) of women with hypovitaminosis D (insufficient and deficient) and in 39.8% (59/148) of those with sufficient VD (p=0.003). In a multivariate logistic regression analysis, a low 25(OH)D level (<30ng/mL) was significantly associated with MetS (OR1.90, 95%CI=1.26-2.85), high triglyceride levels (OR1.55, 95%CI=1.13-2.35), and low HDL levels (OR1.60, 95%CI=1.19-2.40) (p<0.05) compared with women with sufficient 25(OH)D levels, after adjusting for age, time since menopause, body mass index, smoking and physical exercise. The mean concentration of 25(OH)D decreased with increasing numbers of MetS components (p=0.016). CONCLUSIONS VD deficiency in postmenopausal women was associated with a higher prevalence of MetS. Women with VD deficiency had a higher risk of MetS, hypertriglyceridemia and low HDL than those with adequate levels.
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Affiliation(s)
- Eneida Boteon Schmitt
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University - UNESP, Sao Paulo, Brazil
| | - Jorge Nahas-Neto
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University - UNESP, Sao Paulo, Brazil
| | - Flavia Bueloni-Dias
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University - UNESP, Sao Paulo, Brazil
| | - Priscila Ferreira Poloni
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University - UNESP, Sao Paulo, Brazil
| | - Claudio Lera Orsatti
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University - UNESP, Sao Paulo, Brazil
| | - Eliana Aguiar Petri Nahas
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University - UNESP, Sao Paulo, Brazil.
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Lu Y, Zheng Y, Wang N, Chen Y, Li Q, Han B, Chen Y, Cheng J, Zhai H, Xia F, Meng Y, Lu Y. The Relationship between Vitamin D and Type 2 Diabetes Is Intriguing: Glimpses from the Spect-China Study. ANNALS OF NUTRITION AND METABOLISM 2017; 71:195-202. [PMID: 29024934 DOI: 10.1159/000480711] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 08/24/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Vitamin D is a multifunctional vitamin for our body. Type 2 diabetes mellitus (T2DM) is a common metabolic disease. Whether T2DM affects the serum 25(OH)D level has not been reported. The objective of this study was to reveal the extent to which vitamin D is present in the population in East China and to explore the relationship between serum 25(OH)D and T2DM. METHODS The cohort was selected based on a large investigation named Survey on Prevalence in East China including 12,702 participants aged 21-92 years old. All the participants completed the questionnaire and went through a physical examination. Fasting blood samples were collected to test serum 25(OH)D and other metabolism-related indicators. AVONA was used to test the significance of differences among groups. Multinomial logistic regression was used to assess the association of T2DM with serum 25(OH)D level. RESULTS The overall percentage of vitamin D deficiency was 80.55% (male 74.1%, female 85.0%). Men with lower serum 25(OH)D level had high value in homeostasis model assessment of insulin resistance and HbA1c. The serum 25(OH)D level of those who were diagnosed with T2DM was higher than that in non-diabetics. The serum 25(OH)D level of pre-diabetes was the highest. T2DM patients trended to have higher serum 25(OH)D levels. CONCLUSION Vitamin D deficiency is common among the people in East-China. T2DM patients had higher levels of serum 25(OH)D. The relationship between vitamin D and T2DM is intriguing. It seemed that vitamin D was either irrelevant directly to T2DM or resisted in T2DM patients.
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Affiliation(s)
- You Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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Chen X, Wu W, Wang L, Shi Y, Shen F, Gu X, Jia Z. Association Between 25-Hydroxyvitamin D and Epicardial Adipose Tissue in Chinese Non-Obese Patients with Type 2 Diabetes. Med Sci Monit 2017; 23:4304-4311. [PMID: 28877159 PMCID: PMC5598744 DOI: 10.12659/msm.904755] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Epicardial adipose tissue (EAT) is recognized as a useful indicator for type 2 diabetes mellitus (T2DM) and obesity. However, studies on the association between vitamin D status and EAT thickness in type 2 diabetes (T2D) are limited. In this study, we aimed to evaluate the association of vitamin D (Calcifediol) status and EAT thickness (EATT) in Chinese non-obese patients with T2D. Material/Methods A cross-sectional study was performed among 167 non-obese T2D Chinese patients and 82 non-diabetic patients, who are age- and gender-matched during the winter months. EATT was evaluated by two-dimensional transthoracic echocardiography. Serum 25-hydroxyvitamin D [25(OH)D, Calcifediol] was examined in the diabetic patients and in the control group. Results The concentration of 25(OH)D was 32.00 nmol/l (19.30–53.70 nmol/l) among diabetic patients. Most (93.4%) of the diabetic patients had hypovitaminosis D. We confirmed a clear negative association between 25(OH)D level and EATT in non-obese T2D patients (p=0.01). EATT was significantly correlated with 25(OH)D level (p=0.001) and HOMA-IR (p=0.001). Results of multivariate logistic regression analysis demonstrated increased EATT, which was remarkably associated with 25(OH)D levels (p=0.039), systolic blood pressure (SBP) (p=0.013), HOMA-IR (p=0.030), and waist circumference (p<0.001) in T2D patients after adjusting for the confounding factors. Conclusions Increased EATT was found in Chinese non-obese T2D patients. 25(OH)D and HOMA-IR were independently associated with increased EATT after adjusting for multiple confounders.
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Affiliation(s)
- Xiong Chen
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Wenjun Wu
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Luyin Wang
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Yujuan Shi
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Feixia Shen
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Xuemei Gu
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Zhijun Jia
- Department of Ultrasound, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
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Tirabassi G, Cutini M, Salvio G, Cerqueni G, Lenzi A, Balercia G. Influence of vitamin D levels on the cardiovascular profile of hypogonadal men. J Endocrinol Invest 2017; 40:1007-1014. [PMID: 28391585 DOI: 10.1007/s40618-017-0671-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/31/2017] [Indexed: 01/22/2023]
Abstract
PURPOSE A large body of evidence suggests a role for vitamin D in conditioning cardiovascular risk. Therefore, it can be hypothesized that vitamin D might also play a role in influencing the metabolic profile of hypogonadal men. In this work, we aimed at evaluating if any relationship exists between vitamin D levels and cardiovascular parameters in male hypogonadism. METHODS Hypogonadal patients attending our andrology unit were retrospectively reviewed. Clinical and biochemical parameters were evaluated. RESULTS 103 patients were studied (51 non-diabetic and 52 diabetic subjects). Mean age of the whole sample was 65 years (standard error of the mean: 0.62). Significant correlations of age, total testosterone, parathyroid hormone (PTH), calcemia, and 25-OH vitamin D with the metabolic profile were found. In logistic regression models including age, total testosterone, PTH, calcemia and 25-OH vitamin D as independent variables, lower levels of 25-OH vitamin D were associated with high values of body mass index (BMI) [odds ratio (OR) 0.910, p 0.019], insulin (OR 0.918, p 0.034), homeostatic model assessment (HOMA) index (OR 0.918, p 0.030), total cholesterol (OR 0.819, p < 0.001), triglycerides (OR 0.820, p < 0.001), and low-density lipoprotein cholesterol (OR 0.923, p 0.034). In non-diabetic subjects, lower levels of 25-OH vitamin D were associated with high values of BMI, insulin, HOMA, triglycerides, systolic, and diastolic blood pressure. On the other hand, in diabetic subjects, lower levels of 25-OH vitamin D were associated with high values of total cholesterol and triglycerides. CONCLUSIONS Our work shows the influence of vitamin D on cardiovascular profile in male hypogonadism. This effect seems to be more relevant in non-diabetic subjects. If these data were to be confirmed, vitamin D assessment might become mandatory in the clinical evaluation of cardiovascular profile in male hypogonadism.
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Affiliation(s)
- G Tirabassi
- Andrology Unit, Division of Endocrinology, Department of Clinical and Molecular Sciences, Umberto I Hospital, Polytechnic University of Marche, Via Conca 71, 60126, Ancona, Italy
| | - M Cutini
- Andrology Unit, Division of Endocrinology, Department of Clinical and Molecular Sciences, Umberto I Hospital, Polytechnic University of Marche, Via Conca 71, 60126, Ancona, Italy
| | - G Salvio
- Andrology Unit, Division of Endocrinology, Department of Clinical and Molecular Sciences, Umberto I Hospital, Polytechnic University of Marche, Via Conca 71, 60126, Ancona, Italy
| | - G Cerqueni
- Istology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - A Lenzi
- Andrology, Pathophysiology of Reproduction and Endocrine Diagnosis Unit, Policlinic Umberto I, University of Rome ''La Sapienza'', Rome, Italy
| | - G Balercia
- Andrology Unit, Division of Endocrinology, Department of Clinical and Molecular Sciences, Umberto I Hospital, Polytechnic University of Marche, Via Conca 71, 60126, Ancona, Italy.
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Angellotti E, Pittas AG. The Role of Vitamin D in the Prevention of Type 2 Diabetes: To D or Not to D? Endocrinology 2017; 158:2013-2021. [PMID: 28486616 PMCID: PMC5505219 DOI: 10.1210/en.2017-00265] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 05/03/2017] [Indexed: 01/08/2023]
Abstract
Evidence on biological plausibility from mechanistic studies and highly consistent data from observational studies raise the possibility that optimizing vitamin D status may reduce the risk of type 2 diabetes. However, the observational nature of cohort studies precludes a definitive assessment of cause and effect because residual confounding or reverse causation cannot be excluded. Confounding is especially problematic with studies of vitamin D because blood 25-hydoxyvitamin D concentration is not only an excellent biomarker of vitamin D status, reflecting intake or biosynthesis, but also an excellent marker of good overall health. Results from underpowered trials and post hoc analyses of trials designed for nondiabetic outcomes do not support a role of vitamin D supplementation for prevention of type 2 diabetes among people with normal glucose tolerance. Whether vitamin D supplementation may have a role in the prevention of diabetes in high-risk populations remains to be seen. Adequately powered, randomized trials in well-defined populations (e.g., prediabetes) are ongoing and expected to establish whether vitamin D supplementation lowers risk of diabetes.
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Affiliation(s)
- Edith Angellotti
- Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, Boston, Massachusetts 02111
- Department of Medical, Surgical, Neurologic, Metabolic and Aging Sciences, University of Campania Luigi Vanvitelli, Naples 80128, Italy
| | - Anastassios G. Pittas
- Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, Boston, Massachusetts 02111
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Santos A, Amaral TF, Guerra RS, Sousa AS, Álvares L, Moreira P, Padrão P, Afonso C, Borges N. Vitamin D status and associated factors among Portuguese older adults: results from the Nutrition UP 65 cross-sectional study. BMJ Open 2017; 7:e016123. [PMID: 28645977 PMCID: PMC5724139 DOI: 10.1136/bmjopen-2017-016123] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/06/2017] [Accepted: 04/26/2017] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES To evaluate vitamin D status and its associated factors in Portuguese older adults from the Nutrition UP 65 study. DESIGN Cross-sectional observational study. PARTICIPANTS AND METHODS Nationwide cluster sample of 1500 Portuguese subjects ≥65 years old. Participants were classified, according to US Institute of Medicine cut-offs, as presenting normal 25-hydroxyvitamin D (25(OH)D) levels (≥50.0 nmol/L), at risk of inadequacy (30.0-49.9 nmol/L) or at risk of deficiency (<30 nmol/L). The association between individuals' characteristics and 25(OH)D levels was analysed through multinomial logistic regression analysis. RESULTS Median 25(OH)D serum value was 36.1 (interquartile range (IQR): 35.5) nmol/L. According to the used cut-offs, 39.6% of participants were at risk of 25(OH)D deficiency and 29.4% were at risk of 25(OH)D inadequacy. In the adjusted model, having higher skin pigmentation and waist circumference >88 cm for women and >102 cm for men were associated with higher odds of 25(OH)D deficiency. Otherwise, living in Lisbon Metropolitan Area and in Madeira, 1-12 years of schooling, being married or in a common-law marriage, monthly income ≥€1000, alcohol consumption, medication or supplements with vitamin D supplement use, and blood samples collected in spring or summer were associated with lower odds of being at risk of 25(OH)D deficiency. In this model, season of blood sample collection, medication or supplements use, and waist circumference were the factors more strongly associated with 25(OH)D levels. CONCLUSIONS Despite using the conservative Institute of Medicine cut-offs, over two-thirds of these study participants presented inadequate 25(OH)D levels, warranting the implementation of corrective measures. Potentially modifiable factors were strongly associated with 25(OH)D levels in this study. These findings may be particularly relevant to the development of public health policies in southern European countries.
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Affiliation(s)
- Alejandro Santos
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - Teresa F Amaral
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
- UISPA, LAETA-INEGI, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Rita S Guerra
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
- UISPA, LAETA-INEGI, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Ana S Sousa
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
| | - Luisa Álvares
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
| | - Pedro Moreira
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
- EPIUnit – Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Centro de Atividade Física, Saúde e Lazer, Universidade do Porto, Porto, Portugal
| | - Patrícia Padrão
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
- EPIUnit – Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - Cláudia Afonso
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
| | - Nuno Borges
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
- CINTESIS - Center for Health Technology and Services Research, Porto, Portugal
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Pannu PK, Piers LS, Soares MJ, Zhao Y, Ansari Z. Vitamin D status is inversely associated with markers of risk for type 2 diabetes: A population based study in Victoria, Australia. PLoS One 2017; 12:e0178825. [PMID: 28575036 PMCID: PMC5456387 DOI: 10.1371/journal.pone.0178825] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 05/21/2017] [Indexed: 12/24/2022] Open
Abstract
A growing body of evidence suggests a protective role of vitamin D on the risk of type 2 diabetes mellitus (T2DM). We investigated this relationship in a population sample from one Australian state. The data of 3,393 Australian adults aged 18-75 years who participated in the 2009-2010 Victorian Health Monitor survey was analyzed. Socio-demographic information, biomedical variables, and dietary intakes were collected and fasting blood samples were analyzed for 25, hydroxycholecalciferol (25OHD), HbA1c, fasting plasma glucose (FPG), and lipid profiles. Logistic regression analyses were used to evaluate the association between tertiles of serum 25OHD and categories of FPG (<5.6 mmol/L vs. 5.6-6.9 mmol/L), and HbA1c (<5.7% vs. 5.7-6.4%). After adjusting for social, dietary, biomedical and metabolic syndrome (MetS) components (waist circumference, HDL cholesterol, triglycerides, and blood pressure), every 10 nmol/L increment in serum 25OHD significantly reduced the adjusted odds ratio (AOR) of a higher FPG [AOR 0.91, (0.86, 0.97); p = 0.002] and a higher HbA1c [AOR 0.94, (0.90, 0.98); p = 0.009]. Analysis by tertiles of 25OHD indicated that after adjustment for socio-demographic and dietary variables, those with high 25OHD (65-204 nmol/L) had reduced odds of a higher FPG [AOR 0.60, (0.43, 0.83); p = 0.008] as well as higher HbA1c [AOR 0.67, (0.53, 0.85); p = 0.005] compared to the lowest 25OHD (10-44 nmol/L) tertile. On final adjustment for other components of MetS, those in the highest tertile of 25OHD had significantly reduced odds of higher FPG [AOR 0.61, (0.44, 0.84); p = 0.011] and of higher HbA1c [AOR 0.74, (0.58, 0.93); p = 0.041] vs. low 25OHD tertile. Overall, the data support a direct, protective effect of higher 25OHD on FPG and HbA1c; two criteria for assessment of risk of T2DM.
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Affiliation(s)
- Poonam K. Pannu
- Food, Nutrition & Health, School of Public Health, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Leonard S. Piers
- Health Intelligence Unit, System Intelligence and Analytics Branch, Health Strategy, Productivity and Analytics Division, Department of Health, Melbourne, Victoria, Australia
| | - Mario J. Soares
- Food, Nutrition & Health, School of Public Health, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Yun Zhao
- Occupation and the Environment, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - Zahid Ansari
- Health Intelligence Unit, System Intelligence and Analytics Branch, Health Strategy, Productivity and Analytics Division, Department of Health, Melbourne, Victoria, Australia
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