1
|
Luo Y, Qu C, Zhang R, Zhang J, Han D, Na L. Geographic location and ethnicity comprehensively influenced vitamin D status in college students: a cross-section study from China. JOURNAL OF HEALTH, POPULATION, AND NUTRITION 2023; 42:145. [PMID: 38124154 PMCID: PMC10734112 DOI: 10.1186/s41043-023-00488-x] [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: 05/01/2022] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Vitamin D plays an important role in the health of adolescents, whereas vitamin D status of Chinese college students was seldom studied in China. To explore the vitamin D status and its relationship with ethnicity and geographic location in Chinese college students. METHODS The freshmen were taken a physical examination by trained medical personnel after they reported to university. Demographic information including age, gender, ethnicity, region of original residence was collected using a questionnaire survey. Serum 25(OH)D3 concentrations were measured using a liquid chromatograph mass spectrometer. Multiple regression analyses were used to explore the factors that influence serum 25(OH)D3 levels. RESULTS Totally 3220 freshmen who came from 26 provinces, autonomous districts or municipalities were recruited, with a mean age of 18.75 ± 1.18 years and 70.2% of them were female. The mean serum 25(OH)D3 levels were 18.51 ± 6.54 ng/mL, and the proportion of vitamin D deficiency (< 20 ng/mL) and insufficiency (20 ~ < 30 ng/mL) was 64.4% and 30.2%, respectively. The combined proportion of vitamin D deficiency and insufficiency was increased with the latitude increased. Miao had the highest serum 25(OH)D3 levels, whereas Kazak ethnic had the lowest (22.51 ng/mL vs. 13.94 ng/mL) among different ethnic groups. Female students, students from city, Uighur and Kazak ethnic, residing in high latitude was significantly associated with lower serum 25(OH)D3 levels (P < 0.05). CONCLUSIONS Vitamin D deficiency is an important health problem in Chinese college students. Sunlight activities, dietary and life-style intervention for college students according to geographic location and ethnicities should be considered.
Collapse
Affiliation(s)
- Yingyi Luo
- Medical Technology College, Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, China
| | - Chunbo Qu
- Public Health College, Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, China
| | - Rui Zhang
- Public Health College, Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, China
| | - Jingyi Zhang
- Public Health College, Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, China
| | - Dan Han
- Medical Technology College, Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, China
| | - Lixin Na
- Public Health College, Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai, 201318, China.
| |
Collapse
|
2
|
Pourmohamadkhan M, Khorasanchi Z, Ghazizadeh H, Sedighnia A, Kiani B, salemi O, Ferns G, Rostam Niakan Kalhori S, Ghayour-Mobarhan M. A Mixed Model Approach for Estimating the Optimal Food Fortification of Vitamin D: Experiment Based on Mashhad Cohort Study in Iran. ARCHIVES OF IRANIAN MEDICINE 2023; 26:561-566. [PMID: 38310412 PMCID: PMC10862094 DOI: 10.34172/aim.2023.82] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/22/2023] [Indexed: 02/05/2024]
Abstract
BACKGROUND Vitamin D deficiency is a prevalent problem in worldwide healthcare related to several system disorders. Food fortification as a solution is associated with several challenges including insufficient coverage of the entire population, required degree of fortification, the vehicles used for fortification and potential toxicity. This study aimed to determine the optimal amount of vitamin D for fortification without surpassing the upper intake level (UL) of intake at the 95th percentile of the Iranian population and compare two methods of food fortification. METHODS This study is aimed to develop a model of two different fortifying approaches related to an available dataset called MASHAD cohort study. The dataset comprised demographic and nutritional data of 9704 Iranian individuals living in the Greater Mashhad region. The first approach was a computational method necessary to implement a range of eight foods and calculate the optimal approach. In the second case, we used the European formula method called ILSI. RESULTS To find the appropriate value for fortification, we calculated the consumption of 400 IU and 1000 IU supplements of vitamin D. Three micrograms per 100 g in each food was the optimal output. We also used Flynn and Rasmussen's formula on our data. Using these methods, we found that 2.1 micrograms per 100 kcal provides the best result. Hence, using the two different approaches, the results appear to be consistent and promising. CONCLUSION One interesting finding was that supplement consumption did not greatly affect the impact of fortification. This observation may support the hypothesis to determine the amount of fortification, and we can ignore the study population's supplement consumption.
Collapse
Affiliation(s)
- Marjan Pourmohamadkhan
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Khorasanchi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamideh Ghazizadeh
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Atefeh Sedighnia
- Health Technology Incubator Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Behzad Kiani
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Omid salemi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Gordon Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Falmer, Brighton, Sussex, UK University of Medical Sciences, Mashhad, Iran
| | - Sharareh Rostam Niakan Kalhori
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Ghayour-Mobarhan
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
3
|
Nikooyeh B, Zahedirad M, Kalayi A, Shariatzadeh N, Hollis BW, Neyestani TR. Improvement of vitamin D status through consumption of either fortified food products or supplement pills increased hemoglobin concentration in adult subjects: Analysis of pooled data from two randomized clinical trials. Nutr Health 2023; 29:567-574. [PMID: 35238225 DOI: 10.1177/02601060221085351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: It is documented that vitamin D may have a role in erythropoiesis as its deficiency is accompanied by an increased risk of anemia. Aim: This study aimed to examine whether improvement of vitamin D status through daily consumption of either fortified foods or supplements could impinge on certain hematologic parameters in adults. Methods: We pooled data from our two separate clinical trials and made five experimental groups. As part of their usual diet, one group consumed 500 mL/day of yogurt drink fortified with 1000 IU of vitamin D (D-yogurt, n = 27) whereas one group consumed 500 mL/day of the plain yogurt drink (P-yogurt, n = 27). In addition three other groups consumed either 50 g/day bread fortified with 1000 IU of vitamin D (D-bread) or supplement containing 1000 IU vitamin D (D-supplement, n = 27) or placebo (placebo, n = 27). Biochemical measurements were performed before and after the intervention. Results: In all three vitamin D-supplemented groups, serum 25(OH)D concentration increased after the intervention period, which was interestingly accompanied by a significant increment of hemoglobin (D-yogurt, p < 0.001, D-bread, p = 0.003, D-supplement, p < 0.001). Analyses indicated that among participants in vitamin D-intervention groups, being in D-yogurt group was more favourable predictor of improvement in hemoglobin concentrations compared with the placebo (p < 0.001), D-bread (p = 0.045) and P-yogurt (p = 0.001). Conclusion: Improvement of vitamin D status via regular intake of either vitamin D-fortified food products or supplements can result in a significant increment of hemoglobin in adult subjects. This finding has very important clinical as well as public health implications.
Collapse
Affiliation(s)
- Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maliheh Zahedirad
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Kalayi
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nastaran Shariatzadeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bruce W Hollis
- Division of Neonatology, Department of Pediatrics, Medical University of South Carolina, Charleston, SC, 29425, United States
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
4
|
Yang X, Yin X, Huang W, Duan Z, Wu H, Li Y, Li M, Zhang T, Zhou C, Xu H. Distribution of cardiorespiratory fitness in children and adolescents at different latitudes. Am J Hum Biol 2023; 35:e23908. [PMID: 37212366 DOI: 10.1002/ajhb.23908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/27/2023] [Accepted: 04/21/2023] [Indexed: 05/23/2023] Open
Abstract
OBJECTIVE To explore the differences and characteristics of cardiorespiratory fitness (CRF) among children and adolescents in regions with different latitudes in China. METHODS A total of 9892 children and adolescents aged 7-22 years were selected from seven administrative regions in China by the stratified cluster random sampling method. CRF was measured by performance on the 20 m shuttle run test (20mSRT) and estimated maximal oxygen consumption (VO2max ). One-way ANOVA, one-way ANCOVA, and the Lambda Mu and Sigma methods were used to analyze the data. RESULTS Overall, the VO2max of children and adolescents at high latitudes was significantly lower than that of children at low and middle latitudes. The P10 , P50 , and P90 20mSRT values for children and adolescents of most age groups in high latitudes were less than those in low and middle latitudes. The 20mSRT-Z and VO2max -Z scores among children and adolescents aged 7-22 in high latitudes were lower than those in middle and low latitudes after adjusting for age, per capita gross domestic product (GDP), and per capita disposable income. CONCLUSION In general, the CRF of children and adolescents at high latitudes was less than that at low and middle latitudes. Effective measures should be taken to improve CRF in children and adolescents at high latitudes.
Collapse
Affiliation(s)
- Xiaofang Yang
- College of Physical Education, Jiangxi Normal University, Nanchang, China
| | - Xiaojian Yin
- College of Economics and Management, Shanghai Institute of Technology, Shanghai, China
| | - Wenying Huang
- College of Physical Education, Jiangxi Normal University, Nanchang, China
| | - Zhongyang Duan
- College of Marxism, Jiangxi University of Science and Technology, Nanchang, China
| | - Huipan Wu
- Research Center for Health Promotion of Children & Adolescents, Taiyuan Institute of Technology, Taiyuan, China
| | - Yuqiang Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
| | - Ming Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
| | - Ting Zhang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
| | - Caiyou Zhou
- College of Physical Education, Jiangxi Normal University, Nanchang, China
| | - Haihong Xu
- College of Physical Education, Jiangxi Normal University, Nanchang, China
| |
Collapse
|
5
|
Aghapour B, Kheirouri S, Alizadeh M, Khodayari-Zarnaq R. Vitamin D deficiency prevention policies in Iran: a retrospective policy analysis. Front Nutr 2023; 10:1249402. [PMID: 37680901 PMCID: PMC10482268 DOI: 10.3389/fnut.2023.1249402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/04/2023] [Indexed: 09/09/2023] Open
Abstract
Aim Iran has a higher prevalence of vitamin D deficiency (VDD) than the global level. This study aimed to assess VDD prevention policies in Iran through a policy analysis of agenda setting using the multiple streams framework (MSF). Methods Using Kingdon's MSF model, this qualitative analytical study performed a policy analysis on vitamin D-related policies in Iran. The policy documents were reviewed, and in-depth interviews were conducted with stakeholders (n = 27) using the framework analysis method. To categorize data and extract the related themes, MAXQDA version 10 was used. Results According to Kingdon's MSF theory, the problem stream included the high prevalence of VDD among Iranian infants (23.3%), adolescents (76%), and adults (59.1%). The policy stream was identified to focus on preventing programs for non-communicable diseases in the health sector. The political stream indicated that national and international support could provide a political climate for this issue. Conclusion According to our results, a window of opportunity for policymaking on VDD prevention has opened. However, there are some challenges related to the implementation of these policies. These include the dominance of a treatment-based view rather than a prevention-based approach in the health sector, economic problems, and restricted access to health services due to the outbreak of coronavirus disease 2019 (COVID-19). To strengthen and implement VDD prevention policies, the stakeholders need support from high-level policymakers.
Collapse
Affiliation(s)
- Baharak Aghapour
- Department of Community Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sorayya Kheirouri
- Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Alizadeh
- Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rahim Khodayari-Zarnaq
- Department of Health Policy and Management, School of Management and Medical Informatics, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
6
|
Abiri B, Ahmadi AR, Amini S, Akbari M, Hosseinpanah F, Madinehzad SA, Hejazi M, Rishehri AP, Naserghandi A, Valizadeh M. Prevalence of overweight and obesity among Iranian population: a systematic review and meta-analysis. JOURNAL OF HEALTH, POPULATION, AND NUTRITION 2023; 42:70. [PMID: 37488650 PMCID: PMC10367271 DOI: 10.1186/s41043-023-00419-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Obesity is a major risk factor for chronic diseases. Politicians and practitioners should be aware of the dramatic increase in obesity and its subsequent complications to prevent associated health risks. This systematic review aimed to provide better insight into the prevalence of overweight and obesity in the Iranian population. METHOD An evaluation was conducted on all published observational studies from both national (SID, Irandoc, Iranmedex) and international (Web of Knowledge, PubMed, Scopus) sources, which reported the prevalence of overweight/obesity among normal population samples, between January 2012 and December 2021. RESULT A total of 152 eligible studies were included in this meta-analysis. Of the 152 selected studies, 74 reported the prevalence of overweight/obesity in patients aged ≤ 18 years, and 61 studies in adults. In the rest of the articles (17 studies), the results were reported for a combination of these age groups. The prevalence of overweight and obesity in Iran was estimated at 20.1 (95% CI 17.92-22.30) and 13.44 (95% CI 11.76-15.22), respectively. This percentage (95% CI) was 11.71 (10.98-12.46) for overweight and 8.08 (7.02-9.22) for obesity in those aged ≤ 18 years, and 35.26 (32.61-37.99) for overweight and 21.38 (19.61-23.20) for obesity in those aged > 18 years. The overall prevalence of overweight and obesity in the entire population was 35.09% (95% CI 31.31-38.98). CONCLUSION As obesity is on the rise in Iran, we should seek both weight loss strategies and ways to control comorbidities associated with high BMI.
Collapse
Affiliation(s)
- Behnaz Abiri
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Shirin Amini
- Department of Nutrition, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Mojtaba Akbari
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farhad Hosseinpanah
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Ataollah Madinehzad
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Hejazi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Amirreza Pouladi Rishehri
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alvand Naserghandi
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Valizadeh
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
7
|
Paker N, Yavuz Mollavelioglu T, Bugdaycı D, Ones K, Bardak AN, Karacan I, Yıkıcı I, Kesiktas FN. Vitamin D levels in children with cerebral palsy. J Pediatr Rehabil Med 2022; 16:163-169. [PMID: 36031913 DOI: 10.3233/prm-190622] [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] [Indexed: 11/15/2022] Open
Abstract
PURPOSE The aim of this study was to assess serum vitamin D levels and related factors in children with cerebral palsy (CP). METHODS One hundred and nineteen children with CP between the ages of 1 year to 10 years 9 months who were admitted to the children's inpatient rehabilitation unit of a tertiary rehabilitation hospital between January 1, 2017, and December 31, 2018, were included in this study. Demographic and clinical characteristics were obtained from the patient files. CP types and serum 25 hydroxyvitamin D (25OHD) levels were recorded. Gross Motor Function Classification System (GMFCS) was used to assess the functional level. RESULTS Mean age was 5.1±2.9 years. Forty-two (35.3%) were girls, 105 (88.3%) were spastic, and 14 (11.7%) were ataxic and mixed type CP. Mean GMFCS level was 4 (IQR:2). Thirty-one (26.1%) were getting extra liquid feed while the rest were eating a normal diet. Mean serum 25OHD level was 27.4±15.7 (3-79) ng/mL. Vitamin D levels were normal in 68 children (57.1%), whereas 36 (30.3%) had vitamin D insufficiency and 15 (12.6%) showed vitamin D deficiency. Those whose serum vitamin D levels were within a normal range had a median age of 3.8 (IQR:4.2) years. On the other hand, mean age was 6.4 (4.3) years for those with low vitamin D level (p < 0.0001). Vitamin D level was 19.8 (21.4) ng/mL in those (n = 88) who had regular diets, whereas it was 31.0 [16] ng/mL in those (n = 31) who were getting extra liquid feed (p = 0.015). There was no statistically significant correlation between vitamin D level and gender, GMFCS, CP type, season or antiepileptic drug treatment. A binary logistic regression model showed that older age and having only regular meals were significant risk factors for low vitamin D. CONCLUSION In this study, 42.9% of the children with CP had low vitamin D. Older children with CP or those who had regular diets were higher risk groups in terms of low vitamin D.
Collapse
Affiliation(s)
- Nurdan Paker
- University of Health Sciences Istanbul PMR Training Hospital, Istanbul, Turkey
| | | | - Derya Bugdaycı
- University of Health Sciences Istanbul PMR Training Hospital, Istanbul, Turkey
| | - Kadriye Ones
- University of Health Sciences Istanbul PMR Training Hospital, Istanbul, Turkey
| | - Ayse Nur Bardak
- University of Health Sciences Istanbul PMR Training Hospital, Istanbul, Turkey
| | - Ilhan Karacan
- University of Health Sciences Istanbul PMR Training Hospital, Istanbul, Turkey
| | | | - Fatma Nur Kesiktas
- University of Health Sciences Istanbul PMR Training Hospital, Istanbul, Turkey
| |
Collapse
|
8
|
Nutritional and Quality Characteristics of Some Foods Fortified with Dried Mushroom Powder as a Source of Vitamin D. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2022; 2022:2792084. [PMID: 35928181 PMCID: PMC9345716 DOI: 10.1155/2022/2792084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 06/03/2022] [Accepted: 07/02/2022] [Indexed: 11/26/2022]
Abstract
Vitamin D plays a vital role in synthesizing calcium-carrying proteins in the small intestine and helps the absorption of calcium in the body, thus reducing the risk of rickets in children and osteoporosis in adults, especially in women. So, the objective of this study was to evaluate the nutritional value and quality characteristics of some food products such as waffles, breadsticks and salad cream fortified with dried mushroom powder (DMP) after exposure to sunlight for 60 min as a source of vitamin D. The exposure of mushroom to sunlight for 60 min before drying increased its content of vitamin D by 158% more than fresh mushroom (not exposed to sunlight). The DMP was added to the product's formula by a ratio of 1, 2, and 3%. The addition of DMP increased protein, ash, fat, and vitamin D2 and D3 contents in all products, while carbohydrates and moisture contents were decreased in both waffles, and breadsticks. The hardness of both waffles and breadsticks was decreased with increasing the levels of DMP added, while the addition of DMP led to enhance bioactive compounds and antioxidant activity in all products. The sensory evaluation of waffles, breadsticks, and salad cream containing DMP was not changed than control sample. The results found that the intake of 100 g of salad cream, waffles, and breadstick (containing 3% DMP) could by providing more than the recommended daily allowances (RDA) of vitamin D. Therefore, this study recommended the use of DMP (by a ratio of 3%) in fortifying food products in order to meet the RDA of vitamin D.
Collapse
|
9
|
WITHDRAWN: Analysis of intestinal short-chain fatty acid metabolism profile after probiotics and GLP-1 treatment for type 2 diabetes mellitus. Biochem Biophys Res Commun 2022. [DOI: 10.1016/j.bbrc.2022.04.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
How Much Does Serum 25(OH)D Improve by Vitamin D Supplement and Fortified Food in Children? A Systematic Review and Meta-Analysis. J Pediatr Gastroenterol Nutr 2022; 74:e87-e97. [PMID: 34520402 DOI: 10.1097/mpg.0000000000003300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES This study was conducted to respond certain important questions regarding the efficacy of vitamin D fortification and supplementation in children using a meta-analytical approach. METHODS MEDLINE, PubMed, Embase, Cochrane Library, and Google Scholar were searched, and 2341 studies were found in a preliminary search. After screening of titles and abstracts, 31 studies were selected. RESULTS Significant raises in circulating 25-hydroxy vitamin D (25(OH)D) concentrations were observed in both groups that took vitamin D supplement (mean difference [MD] 28.7, 95% confidence interval [CI] 22.5-34.9) and vitamin D-fortified foods (MD 20.29, 95% CI 13.3-27.2). The meta-regression revealed a significant association between age of participants (B -1.4, 95% CI -2.8, -0.02, P = 0.047) and dose of vitamin D (B 0.007, 95% CI 0.003, 0.01, P < 0.001), with the effect on serum 25(OH)D concentrations. The analysis showed that serum 25(OH)D concentration increases by 0.7 nmol/L for every 100 IU of vitamin D intake after adjustment for age, baseline serum 25(OH)D and latitude which is far less than the reported amount in adults. CONCLUSIONS Altogether, these findings indicate that in a mass vitamin D fortification program, circulating 25(OH)D concentration response in children may be lower in children than in adults and vitamin D supplementation may still be needed in this subpopulation.
Collapse
|
11
|
Cashman KD. Global differences in vitamin D status and dietary intake: a review of the data. Endocr Connect 2022; 11:EC-21-0282. [PMID: 34860171 PMCID: PMC8789021 DOI: 10.1530/ec-21-0282] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/03/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Internationally, concern has been repeatedly raised about the little notable progress in the collection, analysis and use of population micronutrient status and deficiency data globally. The need for representative status and intake data for vitamin D has been highlighted as a research priority for well over a decade. AIM AND METHODS A narrative review which aims to provide a summary and assessment of vitamin D nutritional status data globally. This review divides the world into the Food and Agriculture Organisation's (FAO) major regions: the Americas, Europe, Oceania, Africa and Asia. Emphasis was placed on published data on the prevalence of serum 25-hydroxyvitamin D (25(OH)D) < 25/30 and <50 nmol/L (reflecting vitamin D deficiency and inadequacy, respectively) as well as vitamin D intake, where possible from nationally representative surveys. RESULTS Collating data from the limited number of available representative surveys from individual countries might suggest a relatively low overall prevalence of vitamin D deficiency in South America, Oceania and North America, whereas there is more moderate prevalence in Europe and Asia, and possibly Africa. Overall, the prevalence of serum 25(OH)D < 25/30 and <50 nmol/L ranges from ~5 to 18% and 24 to 49%, respectively, depending on FAO world region. Usual intakes of vitamin D can also vary by FAO world region, but in general, with a few exceptions, there are very high levels of inadequacy of vitamin D intake. CONCLUSIONS While the burden of vitamin D deficiency and inadequacy varies by world regions and not just by UVB availability, the global burden overall translates into enormous numbers of individuals at risk.
Collapse
Affiliation(s)
- Kevin D Cashman
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
- Correspondence should be addressed to K D Cashman:
| |
Collapse
|
12
|
Min Q, Wang Y, Jin T, Zhu L, Wu X, Li Y, Wang Y, Xu N. Analysis of Intestinal Short-Chain Fatty Acid Metabolism Profile After Probiotics and GLP-1 Treatment for Type 2 Diabetes Mellitus. Front Endocrinol (Lausanne) 2022; 13:892127. [PMID: 35846273 PMCID: PMC9280620 DOI: 10.3389/fendo.2022.892127] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Type 2 diabetes accounts for about 90% of diabetes patients, and the incidence of diabetes is on the rise as people's lifestyles change. Compared with GLP-1 treatment, probiotic treatment can directly regulate homeostasis of the host gut microbe, and thus homeostasis of its metabolites. Currently, the regulatory role of probiotics on intestinal metabolites after treatment of type 2 diabetes mellitus remains unclear. The purpose of this study was to investigate the therapeutic effect of probiotics on type 2 diabetes mellitus and its regulatory effect on short-chain fatty acids, which are metabolites of intestinal microorganisms. I collected feces from 15 patients with diabetes before treatment and 15 patients with type 2 diabetes after treatment with GLP-1 and probiotics. The abundance of short-chain fatty acids in feces was determined by GC-MS. Results Both GLP-1 and probiotics could improve the levels of blood glucose, urine glucose and BMI in patients with type 2 diabetes. After glP-1 treatment, two short-chain fatty acids (butyric acid and valerate acid) in intestine were significantly changed. Propionic acid and isovalerate were significantly changed after probiotic treatment. At the same time, KEGG signal pathway enrichment results showed that probiotics intervention mainly achieved the purpose of treating type 2 diabetes through regulating protein and carbohydrate metabolism. Taken together, our study shows changes in intestinal short-chain fatty acids after probiotics or GLP-1 treatment of type 2 diabetes, which will provide us with new insights into the mechanism of probiotics treatment of type 2 diabetes, as well as potential intervention targets for diabetes treatment.
Collapse
Affiliation(s)
- Qiuxia Min
- Department of Pharmacy, The First People's Hospital of Yunnan Province, Kunming City, China
| | - Yan Wang
- Department of Endocrinology, The First People's Hospital of Yunnan Province, Kunming City, China
| | | | - Lei Zhu
- Department of Endocrinology, The First People's Hospital of Yunnan Province, Kunming City, China
| | - XianYan Wu
- Department of Clinical Laboratory, The First People's Hospital of Yunnan Province, Kunming City, China
| | - YiKun Li
- Department of Clinical Laboratory, The First People's Hospital of Yunnan Province, Kunming City, China
| | - YanJiao Wang
- Department of Endocrinology, The First People's Hospital of Yunnan Province, Kunming City, China
| | - Ning Xu
- Department of Clinical Laboratory, The First People's Hospital of Yunnan Province, Kunming City, China
| |
Collapse
|
13
|
Yang L, Sato M, Saito-Abe M, Irahara M, Nishizato M, Sasaki H, Konishi M, Ishitsuka K, Mezawa H, Yamamoto-Hanada K, Ohya Y. 25-Hydroxyvitamin D levels among 2-year-old children: findings from the Japan environment and Children's study (JECS). BMC Pediatr 2021; 21:539. [PMID: 34856947 PMCID: PMC8638176 DOI: 10.1186/s12887-021-03005-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 11/15/2021] [Indexed: 01/08/2023] Open
Abstract
Background The study aim was to obtain epidemiological data on vitamin D levels for the pediatric population in Japan. We assessed the prevalence of vitamin D deficiency and insufficiency in 2-year-old Japanese children using data from a large ongoing birth cohort study. Methods Data for analysis was obtained from the Japan Environment and Children’s Study (JECS) and a Sub-Cohort Study (SCS) of JECS. We evaluated the children’s serum 25(OH) D levels by 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentiles, and the rates of vitamin D deficiency or insufficiency. We also presented a weighted prevalence rate for vitamin D deficiency or insufficiency among all children in JECS. Results After excluding children with missing 25(OH)D2 or 25(OH)D3 data, we analyzed 4655 remaining children, of whom 24.7% (95% CI, 23.5–26.0%) had vitamin D deficiency (< 20 ng/mL), and 51.3% (95% CI, 49.8–52.7%) were at risk of vitamin D insufficiency (20–30 ng/mL). The estimated prevalence of vitamin D deficiency and insufficiency among all children in JECS were 25.4% (95% CI, 24.1–26.7%) and 50.9% (95% CI, 49.4–52.4%). Vitamin D deficiency was found in 22.9% of boys and 26.5% of girls. Median serum 25(OH) D concentrations were lower among participants measured during winter and spring than among those measured in summer and autumn. The highest rate of vitamin D deficiency was observed in Hokkaido, the northernmost prefecture of Japan. Conclusion We analyzed data on serum 25(OH) D levels from a birth cohort study and found that vitamin D deficiency and insufficiency are very common among 2-year-old Japanese children. Sex, season, and latitude affect serum 25(OH) D concentrations. Supplementary Information The online version contains supplementary material available at 10.1186/s12887-021-03005-3.
Collapse
Affiliation(s)
- Limin Yang
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Miori Sato
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Mayako Saito-Abe
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Makoto Irahara
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Minaho Nishizato
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Hatoko Sasaki
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Mizuho Konishi
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kazue Ishitsuka
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Hidetoshi Mezawa
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kiwako Yamamoto-Hanada
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Yukihiro Ohya
- Division of Allergy, Department of Medical Subspecialties, Medical Support Center for Japan Environment and Children's Study (JECS), Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagayaku, Tokyo, 157-8535, Japan. .,Medical Support Center for the Japan Environment and Children's Study, National Research Institute for Child Health and Development, Tokyo, Japan.
| | | |
Collapse
|
14
|
Abiri B, Vafa M, Azizi-Soleiman F, Safavi M, Kazemi SM, Salehi M, Zaeri F, Sadeghi H. Changes in Bone Turnover, Inflammatory, Oxidative Stress, and Metabolic Markers in Women Consuming Iron plus Vitamin D Supplements: a Randomized Clinical Trial. Biol Trace Elem Res 2021; 199:2590-2601. [PMID: 32975739 DOI: 10.1007/s12011-020-02400-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 09/16/2020] [Indexed: 11/25/2022]
Abstract
We aimed to investigate whether combination of vitamin D and iron supplementation, comparing vitamin D alone, could modify bone turnover, inflammatory, oxidative stress, and metabolic markers. Eighty-seven women with hemoglobin (Hb) ≤ 12.7 g/dL and 25OHD ≤ 29 ng/mL vitamin D deficiency/insufficiency aged 18-45 years were randomly assigned into two groups: (1) receiving either 1000 IU/day vitamin D3 plus 27 mg/day iron (D-Fe); (2) vitamin D3 plus placebo supplements (D-P), for 12 weeks. In D-Fe group, significant decrease in red blood cells (RBC) (P = 0.001) and hematocrit (Hct) (P = 0.004) and increases in mean corpuscular hemoglobin concentration (MCHC) (P = 0.001), 25OHD (P < 0.001), osteocalcin (P < 0.001), high-density cholesterol (HDL) (P = 0.041), and fasting blood sugar (FBS) (P < 0.001) were observed. D-P group showed significant decrease in RBC (P < 0.001), Hb (P < 0.001), Hct (P < 0.001), mean corpuscular volume (MCV) (P = 0.004), mean corpuscular hemoglobin (MCH) (P < 0.001), MCHC (P = 0.005), serum ferritin (P < 0.001), and low-density cholesterol (LDL) (P = 0.016) and increases of 25OHD (P < 0.001), osteocalcin (P < 0.001), C-terminal telopeptide (CTX) (P = 0.025), triglyceride (TG) (P = 0.004), FBS (P < 0.001), and interleukin-6 (IL-6) (P = 0.001) at week 12. After the intervention, the D-P group had between-group increases in mean change in the osteocalcin (P = 0.007) and IL-6 (P = 0.033), and decreases in the RBC (P < 0.001), Hb (P < 0.001), Hct (P < 0.001), and MCV (P = 0.001), compared with the D-Fe group. There were significant between-group changes in MCH (P < 0.001), MCHC (P < 0.001), ferritin (P < 0.001), and serum iron (P = 0.018). Iron-vitamin D co-supplementation does not yield added benefits for improvement of bone turnover, inflammatory, oxidative stress, and metabolic markers, whereas, vitamin D alone may have some detrimental effects on inflammatory and metabolic markers. IRCT registration number: IRCT201409082365N9.
Collapse
Affiliation(s)
- Behnaz Abiri
- Department of Nutrition, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammadreza Vafa
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, P.O.BOX: 1449614535, Iran.
| | - Fatemeh Azizi-Soleiman
- Department of Clinical Nutrition, School of Nutrition & Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Morteza Safavi
- Department of Clinical Nutrition, School of Nutrition & Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyyed Morteza Kazemi
- Bone, Joint, and Related Tissue Research Center, Akhtar Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masood Salehi
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Farid Zaeri
- Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Homa Sadeghi
- School of Public Health, Department of Nutrition and Food Science, Texas Woman's University, Denton Campus, Denton, TX, 76204, USA
| |
Collapse
|
15
|
Karamizadeh M, Seif M, Holick MF, Akbarzadeh M. Developing a Model for Prediction of Serum 25-Hydroxyvitamin D Level: The Use of Linear Regression and Machine Learning Methods. J Am Coll Nutr 2021; 41:191-200. [PMID: 33555236 DOI: 10.1080/07315724.2020.1869624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Because vitamin D status affects many organs and tissues of the body, it is important to determine the factors affecting it. The purpose of this study was to develop a model for predicting the serum 25-hydroxyvitamin D [25(OH)D] level in healthy young adults. METHOD This cross-sectional study was conducted on 201 healthy individuals aged 20 to 40 years old in Shiraz, Iran. Data regarding demographic characteristics, vitamin D intake through supplements, and sun exposure habits were gathered. Serum 25(OH)D concentration was also measured. Data were analyzed with R software using linear regression and different machine learning methods such as conditional tree, conditional forest and random forest. RESULTS Based on the linear regression, male sex (p < 0.001), taking 50,000 IU vitamin D3 supplement monthly (p < 0.001), and lower waist circumference (p = 0.018) were identified as effective factors in increasing serum 25(OH)D levels. According to the conditional tree, taking 50,000 IU vitamin D3 supplement monthly (p < 0.001) and sex (p < 0.001) were two main factors in the classification of individuals in terms of serum 25(OH)D levels. Besides, conditional forest and random forest results showed that the most important variable was taking 50,000 IU vitamin D3 supplement monthly. CONCLUSIONS Supplement use is the first and most important predictor of 25(OH)D levels and other factors, including sex and waist circumference, are ranked thereafter, and the importance of these factors is greater in those who do not take vitamin D3 supplements.
Collapse
Affiliation(s)
- Malihe Karamizadeh
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mozhgan Seif
- Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Michael F Holick
- Section Endocrinology, Diabetes, Nutrition and Weight Management, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Marzieh Akbarzadeh
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
16
|
Nasiri-Babadi P, Sadeghian M, Sadeghi O, Siassi F, Dorosty A, Esmaillzadeh A, Pouraram H. The association of serum levels of zinc and vitamin D with wasting among Iranian pre-school children. Eat Weight Disord 2021; 26:211-218. [PMID: 31900880 DOI: 10.1007/s40519-019-00834-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/10/2019] [Indexed: 01/21/2023] Open
Abstract
PURPOSE Wasting is a main indicator of Child's undernutrition that is associated with several non-communicable diseases and child mortality. This is the first population-based study which evaluated the association of serum zinc and vitamin D levels with wasting in a Middle East region. We also reported the prevalence of vitamin D and zinc deficiencies among Iranian pre-school children aged 6 years. METHODS This was a multicenter cross-sectional study that included 425 children aged between 5 and 7 years (on average 6 years) with BMI-for-age Z-scores of < - 1 SD resident in urban and rural areas of Iran in the spring of 2012 as part of the National Integrated Micronutrient Survey 2 (NIMS-2). Anthropometric measurements and blood sampling were obtained. The prevalence of vitamin D and zinc deficiencies together with the correlations of these variables with the increase of BMI-for-age Z-scores were evaluated. RESULTS The prevalence of vitamin D and zinc deficiencies was 18.8% and 12.7%, respectively. In addition, 31.1% of children were wasted. Children in the second tertile of 25(OH)D levels were less likely to have wasting compared with those in the first tertile in both crude and adjusted models (OR 0.47, 95% CI 0.27-0.83). A significant inverse association was found between serum levels of zinc and wasting (OR 0.57, 95% CI 0.34-0.96); such that after adjusting for confounders, children in the highest tertile of serum zinc had 47% less odds of wasting compared with those in the first tertile (OR 0.53, 95% CI 0.31-0.91). CONCLUSION The prevalence of vitamin D and zinc deficiencies among Iranian pre-school children aged 6 years was 18.8 and 12.7%, respectively. Serum levels of vitamin D and zinc were inversely associated with wasting either before or after controlling for confounders. LEVEL OF EVIDENCE Level III, case-control analytic studies.
Collapse
Affiliation(s)
- Pegah Nasiri-Babadi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P.O. Box 14155-6117, Tehran, Iran
| | - Mehdi Sadeghian
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Omid Sadeghi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P.O. Box 14155-6117, Tehran, Iran.,Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereydoun Siassi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P.O. Box 14155-6117, Tehran, Iran
| | - Ahmadreza Dorosty
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P.O. Box 14155-6117, Tehran, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P.O. Box 14155-6117, Tehran, Iran.,Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamed Pouraram
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P.O. Box 14155-6117, Tehran, Iran.
| |
Collapse
|
17
|
Nikooyeh B, Hollis BW, Neyestani TR. Modulating effect of vitamin D status on serum anti-adenovirus 36 antibody amount in children with obesity: National Food and Nutrition Surveillance. BMC Pediatr 2020; 20:316. [PMID: 32593301 PMCID: PMC7320580 DOI: 10.1186/s12887-020-02216-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 06/22/2020] [Indexed: 12/16/2022] Open
Abstract
Background The association of ADV-36 infection and obesity has been reported in children. The objective of this study was to examine the hypothesis that the association between ADV-36 infection and adiposity may be mediated by sub-optimal vitamin D status of the host. Methods Ninety one apparently healthy children in different weight categories (normal weight: 33, overweight: 33, obesity: 25) aged 5–18 years were randomly selected from the registered population at National Food and Nutrition Surveillance Program (NFNS). The groups were matched based on age and sex. Anthropometric, biochemical and serological assessments were performed. Results The amount of anti-ADV36-Ab increased whereas circulating concentrations of 25(OH) D decreased across BMI categories with higher amounts in children with normal weight than in children with overweight and obesity (31.0 ± 16.4, 22.5 ± 10.5 and 21.9 ± 9.8 nmol/L, respectively, p = 0.004). Logistic regression analysis revealed that for each unit increment of anti-ADV36-Ab, the chance of increase in weight was 8.5 times (OR: 8.5, p = 0.029). Interestingly, when 25(OH) D was introduced into the model, anti-ADV36-Ab was no longer the predictor of weight increment and the chance of increase in weight reduced 5% for each unit increase in 25(OH) D concentration (OR: 0.95, p = 0.012). Conclusion It is suggested that ADV36-induced lipogenesis may be mediated by vitamin D deficiency in children with obesity.
Collapse
Affiliation(s)
- Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bruce W Hollis
- Division of Neonatology, Department of Pediatrics, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
18
|
Meshkini F, Abdollahi S, Clark CCT, Soltani S. The effect of vitamin D supplementation on insulin-like growth factor-1: A systematic review and meta-analysis of randomized controlled trials. Complement Ther Med 2020; 50:102300. [PMID: 32444034 DOI: 10.1016/j.ctim.2020.102300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/14/2019] [Accepted: 01/03/2020] [Indexed: 11/25/2022] Open
Abstract
PURPOSE There is equivocality regarding the interaction between vitamin D and insulin-like growth factor-1 (IGF-1). Thus, the aim of this study was to elucidate the effect of vitamin D supplementation on serum levels of IGF-1 by conducting a systematic review and meta-analysis of randomized controlled trials (RCTs). METHODS PubMed, Scopus, and ISI Web of Science databases were searched up to May 2019 for RCTs that evaluated the effect of vitamin D supplementation on IGF-1 levels. Mean and standard deviation changes of IGF-1 in each treatment group were considered for analysis and pooled using random-effect model. Risk of bias for included studies was assessed by the Cochrane scale and the NutriGrade approach was applied to evaluate the quality of evidence. RESULTS Six trials (n = 773 participants) were included in the meta-analysis. Compared with control group, vitamin D supplementation yielded no significant effect on serum level of IGF-1 (weighted mean difference [WMD] =4.66 ng/ml, 95 % CIs: -6.72 to 16.03, P = 0.42, I2 = 74.8, P-heterogeneity = 0.001). Additionally, no meaningful changes were observed in subgroup analyses. CONCLUSION The evidence from the limited number of published trials does not convincingly show that vitamin D supplementation elicits any clinically relevant effects on IGF-1 levels. More high-quality studies are needed to reach a consensual conclusion in this area.
Collapse
Affiliation(s)
- Fatemeh Meshkini
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Shima Abdollahi
- Department of Nutrition and Public Health, School of Public Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Cain C T Clark
- Faculty Research Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, CV1 5FB, UK
| | - Sepideh Soltani
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, 74877-94149, Iran.
| |
Collapse
|
19
|
Kang Y, Han Y, Guan T, Wang X, Xue T, Chen Z, Jiang L, Zhang L, Zheng C, Wang Z, Gao R. Clinical blood pressure responses to daily ambient temperature exposure in China: An analysis based on a representative nationwide population. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135762. [PMID: 31818583 DOI: 10.1016/j.scitotenv.2019.135762] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/03/2019] [Accepted: 11/24/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Limited evidence is available regarding the potential heterogeneity of ambient temperature on blood pressure (BP) in various climate zones. OBJECTIVES To explore the effect of daily ambient temperature on BP in various climate zones across 31 provinces in China. METHODS A representative population sample (n = 451,770) were obtained from the China Hypertension Survey study (CHS) from October 2012 to December 2015. Survey seasons were divided into warm and cold seasons. Survey sites were divided into three climate zones as subtropical, temperate monsoon and temperate continental zones. RESULTS After adjustment for confounders, an overall 10 °C decrease in ambient temperature was statistically associated 0.74 mmHg (95% CI: 0.69, 0.79) and 0.60 mmHg (95% CI: -0.63, -0.57) rise for SBP and DBP, respectively. In the warm season, U-shaped exposure-response curves were observed between ambient temperature and BP in temperate monsoon and continental zones, and liner curves in other zones. A greater SBP change due to a lower temperature was observed in subtropical zones, so did DBP in temperate continental zones, especially for cold season. Female, rural and elderly populations were more susceptible to cold weather than their counterparts. DISCUSSION There is a geographical disparity between temperature and BP across different climate zones, which should been taken into consideration when maintaining stable blood pressure levels.
Collapse
Affiliation(s)
- Yuting Kang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Ying Han
- Department of Cadre Health, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Tianjia Guan
- School of Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Xin Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Tao Xue
- Institute of Reproductive and Child Health, Ministry of Health Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Zuo Chen
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Linlin Jiang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Linfeng Zhang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Congyi Zheng
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Zengwu Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, National Clinical Research Center of Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 102308, China.
| | - Runlin Gao
- Department of Cardiology, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100037, China
| |
Collapse
|
20
|
Tangestani H, Djafarian K, Shab-Bidar S. The effect of daily consumption of different doses of fortified Lavash bread versus plain bread on serum vitamin-D status, body composition, metabolic and inflammatory biomarkers, and gut microbiota in apparently healthy adult: study protocol of a randomized clinical trial. Trials 2019; 20:776. [PMID: 31881986 PMCID: PMC6935154 DOI: 10.1186/s13063-019-3852-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/25/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Due to the high prevalence of vitamin-D deficiency worldwide and its health consequences, intervention studies at the community level are warranted. The present study has been conducted to evaluate the effectiveness of vitamin-D-fortified bread on serum vitamin-D levels, inflammatory and metabolic biomarkers, and gut microbiota composition in vitamin-D-deficient individuals. METHODS/DESIGN A double-blind, randomized controlled clinical trial is conducted on apparently healthy individuals with vitamin-D deficiency. The random allocation is done to divide participants into intervention groups including daily intake of vitamin-D-3-fortified bread (FB) with 500 IU/100 g bread (n = 30), FB with 1000 IU/100 g bread (n = 30), and 100 g plain bread (PD) (n = 30). At baseline and after 3 months of the intervention period, blood, stool, and urine samples are taken. Anthropometric measures, body composition, blood pressure, and dietary assessment are made. The gut microbiome composition is measured by the 16S rRNA approach. Data is analyzed by SPSS software version 21. DISCUSSION This study may partly explain for the first time the conflicting results from recent critical and systematic reviews regarding the role of vitamin D in microbiota composition. TRIAL REGISTRATION Iranian Registry of Clinical Trials (IRCT), ID: IRCT20170812035642N3. Registered on 11 March 2018; http://www.irct.ir/user/trial/28134/view.
Collapse
Affiliation(s)
- Hadith Tangestani
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), No 44, Hojjat-dost Alley, Naderi St., Keshavarz Blvd, Tehran, Iran
| | - Kurosh Djafarian
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Sakineh Shab-Bidar
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), No 44, Hojjat-dost Alley, Naderi St., Keshavarz Blvd, Tehran, Iran.
| |
Collapse
|
21
|
Nikooyeh B, Zargaraan A, Kalayi A, Shariatzadeh N, Zahedirad M, Jamali A, Khazraie M, Hollis B, Neyestani TR. Vitamin D-fortified cooking oil is an effective way to improve vitamin D status: an institutional efficacy trial. Eur J Nutr 2019; 59:2547-2555. [PMID: 31606753 DOI: 10.1007/s00394-019-02103-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 09/26/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE High prevalence of vitamin D deficiency (VDD) justifies a cost-effective and sustainable strategy to combat VDD in the community. This study was undertaken for the first time to evaluate the efficacy of daily consumption of vitamin D fortified sunflower oil with a meal. METHODS This single-blind trial was conducted in two separate institutions: one as intervention (D-fortified sunflower oil) group (DO, n1 = 39) and the other as control (unfortified sunflower oil) group (SO, n2 = 33). Participants consumed their lunches cooked either with D-fortified or unfortified cooking sunflower oil (500 IU/30 g) for 12 weeks. Dietary, anthropometric and biochemical assessments were done for all participants before and after the intervention. RESULTS A total of 65 subjects from both sexes aged 32.5 ± 4 years completed the intervention period. Serum 25(OH)D showed a significant increase in DO and a decrease in SO group (8.8 ± 9.3 vs. - 7.4 ± 6.4 ng/mL, p < 0.001). The rise in serum 25(OH)D in DO group was accompanied by a significant decrease in iPTH (DO: - 10.2 ± 29.4 vs. SO: + 9.2 ± 29.5 pg/mL; p = 0.009). A significant reduction in weight (p = 0.004), BMI (p = 0.029), waist girth (p < 0.001), serum total cholesterol (p = 0.0290) and LDL-C (p = 0.010) was observed in DO, as compared with SO group. CONCLUSIONS Cooking oil can be considered as an efficacious vehicle for mass fortification program to combat VDD. The improvement of vitamin D status may bring about betterment of certain cardiometabolic risk factors. REGISTRATION NUMBER Clinicaltrials.gov: NCT03826654.
Collapse
Affiliation(s)
- Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azizollaah Zargaraan
- Department of Food and Nutrition Policy and Planning Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition and Food Science, Shahid Beheshti University of Medical Sciences and Health Services, Tehran, Iran
| | - Ali Kalayi
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nastaran Shariatzadeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maliheh Zahedirad
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Jamali
- Laboratory of Quality Control, Kourosh Food Industry, Tehran, Iran
| | | | - Bruce Hollis
- Division of Neonatology, Department of Pediatrics, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
22
|
Motamed S, Nikooyeh B, Kashanian M, Hollis BW, Neyestani TR. Efficacy of two different doses of oral vitamin D supplementation on inflammatory biomarkers and maternal and neonatal outcomes. MATERNAL AND CHILD NUTRITION 2019; 15:e12867. [PMID: 31250540 DOI: 10.1111/mcn.12867] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/25/2019] [Accepted: 03/19/2019] [Indexed: 12/14/2022]
Abstract
Hypovitaminosis D during pregnancy is suggested to have a link with complications in both mother and infant. We aimed to evaluate the efficacy of two doses of vitamin D3 supplementation during pregnancy on maternal and cord blood vitamin D status, inflammatory biomarkers, and maternal and neonatal outcomes. A total of 84 pregnant women (gestational age of <12 weeks) were randomly allocated to one of two groups: (a) 1,000-IU/d vitamin D and (b) 2,000 IU/d. Biochemical assessments (25-hydroxycalciferol (25(OH)D), hs-CRP, and cell-culture supernatant concentrations of IL-1β, IL-6, and TNF-α) of mothers were performed at the beginning and 34 weeks of gestation. Assessments of infants at delivery comprised cord blood serum concentrations of 25(OH)D, hs-CRP, IL-1β, IL-6, TNF-α, birth sizes, and Apgar score. Circulating concentrations of 25(OH)D increased in both intervention groups with more increment in 2,000 IU/d than in 1,000 IU/d (46.7 ± 30.7 vs. 24.0 ± 21.07 nmol L-1 , P = .001). Concentrations of TNF-α decreased significantly in group 2,000 (-913.1 ± 1261.3 ng L-1 , P = .01). The cord blood concentration of IL-6 in group 2,000 IU/d, compared with 1,000 IU/d, was significantly lower (25.9 ± 32.0 vs. 4.6 ± 1.4 ng L-1 , P = .03). The birth sizes including weight, length, and head circumference of the infants of group 2,000 IU/d were significantly higher than the infants' of group 1,000 IU/d. Supplementation with 2,000-IU/d vitamin D3 is more effective than 1,000 IU/d in pregnant women in terms of increasing circulating 25(OH)D, ameliorating pro-inflammatory markers notably TNF-α in mother and IL-6 in cord blood, and improving neonatal outcomes including the birth sizes.
Collapse
Affiliation(s)
- Soudabe Motamed
- Department of Nutrition, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Kashanian
- Department of Obstetrics and Gynecology, Akbarabadi Teaching Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Bruce W Hollis
- Division of Neonatology, Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
23
|
Alimoradi K, Nikooyeh B, Ravasi AA, Zahedirad M, Shariatzadeh N, Kalayi A, Neyestani TR. Efficacy of Vitamin D Supplementation in Physical Performance of Iranian Elite Athletes. Int J Prev Med 2019; 10:100. [PMID: 31360347 PMCID: PMC6592128 DOI: 10.4103/ijpvm.ijpvm_227_18] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 08/27/2018] [Indexed: 02/06/2023] Open
Abstract
Background: There has been no report of the vitamin D status of the professional athletes from Iran to date. This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes expedited to Asian competition in Taipei, China, 2015. Methods: This study was a randomized controlled clinical trial. Seventy subjects were enrolled in the study. The athletes were randomly divided into two groups: vitamin D supplement (D; received 50,000 IU of vitamin D supplement weekly) and control (P, received a placebo weekly). Duration of the study was 8 weeks. Anthropometric, dietary, athletic performance, and biochemical evaluations were performed for all subjects in the beginning and in the end of the intervention period. Results: A significant rise in circulating 25(OH)D concentration was observed in D group (17.3 ± 16.9 ng/mL, P < 0.001), whereas in P group, there was a statistically significant decrement (−3.1 ± 8.4 ng/mL, P = 0.040). There were no either within- or between-group significant differences in Ergo jump, vertical jump, and agility tests. In strength leg press tests, both groups showed a significant improvement. However, comparisons of changes revealed that the improvement in D group was significantly higher than in P group (P = 0.034). Moreover, in sprint test (one repetition-Max, 1RM), only D group had a significant within-group improvement (P = 0.030). Conclusions: Weekly supplementation with 50,000 IU vitamin D resulted in nearly 17 ng/mL increment in circulating calcidiol. This increase was associated with significant improvement of power leg press and sprint tests in D-supplemented group.
Collapse
Affiliation(s)
- Karamollah Alimoradi
- Department of Nutrition Research, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Bahareh Nikooyeh
- Department of Nutrition Research, Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Asghar Ravasi
- Department of Sport Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Maliheh Zahedirad
- Department of Nutrition Research, Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nastaran Shariatzadeh
- Department of Nutrition Research, Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Kalayi
- Department of Nutrition Research, Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tirang Reza Neyestani
- Department of Nutrition Research, Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
24
|
Nikooyeh B, Neyestani T. Efficacy of Food Fortification with Vitamin D in Iranian Adults: A Systematic Review and Meta-Analysis. NUTRITION AND FOOD SCIENCES RESEARCH 2018. [DOI: 10.29252/nfsr.5.4.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
|
25
|
Salerno G, Ceccarelli M, de Waure C, D'Andrea M, Buonsenso D, Faccia V, Pata D, Valentini P. Epidemiology and risk factors of hypovitaminosis D in a cohort of internationally adopted children: a retrospective study. Ital J Pediatr 2018; 44:86. [PMID: 30053889 PMCID: PMC6062984 DOI: 10.1186/s13052-018-0527-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 07/18/2018] [Indexed: 01/20/2023] Open
Abstract
Background Predictors of hypovitaminosis D were extensively studied in the adult population, leading to an approximately complete understanding of them, while there is a lack of studies in the pediatric population, especially in migrant and internationally adopted children. In this retrospective study, we tried to identify the major laboratory predictors of hypovitaminosis D in a cohort of internationally adopted children. Methods Data were extracted from the database of the “Ethnopediatrics Outpatient Clinic” of the “A. Gemelli” Foundation University Hospital in Rome, Italy. Our study included 873 children evaluated from March 2007 to May 2016. Analysis of variance, chi square test, t test and multivariate logistic regression were performed, a “p” value < 0.05 was considered significant, with a confidence interval of 95%. Results We did not find any significant correlation between Vitamin D and Calcium, Phosphates or Magnesium levels within the population we examined. Moreover, parathyroid hormone is not a good predictor of Vitamin D Status. Conclusions Considering the strong influence Vitamin D status has not only on bone health, but also on general well-being, it is due to perform a vitamin D assessment as soon as possible, especially in internationally adopted children. Electronic supplementary material The online version of this article (10.1186/s13052-018-0527-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Gilda Salerno
- Department of Woman and Child Health, "A. Gemelli" University Hospital Foundation, Unit of Pediatrics, Catholic University of Sacred Heart, Largo Agostino Gemelli, 8, 00168, Rome, Italy
| | - Manuela Ceccarelli
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, University of Messina, Via Consolare Valeria, 1, 98125, Messina, Italy
| | - Chiara de Waure
- Public Health Institute, Catholic University of Sacred Heart, Largo Agostino Gemelli, 8, 00168, Rome, Italy
| | - Marianna D'Andrea
- Public Health Institute, Catholic University of Sacred Heart, Largo Agostino Gemelli, 8, 00168, Rome, Italy
| | - Danilo Buonsenso
- Department of Woman and Child Health, "A. Gemelli" University Hospital Foundation, Unit of Pediatrics, Catholic University of Sacred Heart, Largo Agostino Gemelli, 8, 00168, Rome, Italy
| | - Valerio Faccia
- Department of Gynecologic, Pediatric and Neonatologic Sciences, "Sant'Andrea" University Hospital, Unit of Pediatrics, University "Sapienza" of Rome, Rome, Italy
| | - Davide Pata
- Department of Woman and Child Health, "A. Gemelli" University Hospital Foundation, Unit of Pediatrics, Catholic University of Sacred Heart, Largo Agostino Gemelli, 8, 00168, Rome, Italy
| | - Piero Valentini
- Department of Woman and Child Health, "A. Gemelli" University Hospital Foundation, Unit of Pediatrics, Catholic University of Sacred Heart, Largo Agostino Gemelli, 8, 00168, Rome, Italy.
| |
Collapse
|
26
|
Chakhtoura M, Rahme M, Chamoun N, El-Hajj Fuleihan G. Vitamin D in the Middle East and North Africa. Bone Rep 2018; 8:135-146. [PMID: 29955632 PMCID: PMC6020111 DOI: 10.1016/j.bonr.2018.03.004] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/12/2018] [Accepted: 03/15/2018] [Indexed: 12/31/2022] Open
Abstract
PURPOSE The Middle East and North Africa (MENA) region registers some of the lowest serum 25‑hydroxyvitamin D [25(OH)D] concentrations, worldwide. We describe the prevalence and the risk factors for hypovitaminosis D, completed and ongoing clinical trials, and available guidelines for vitamin D supplementation in this region. METHODS This review is an update of previous reviews published by our group in 2013 for observational studies, and in 2015 for randomized controlled trials (RCTs) from the region. We conducted a comprehensive search in Medline, PubMed, and Embase, and the Cochrane Library, using MeSH terms and keywords relevant to vitamin D, vitamin D deficiency, and the MENA region, for the period 2012-2017 for observational studies, and 2015-2017 for RCTs. We included large cross-sectional studies with at least 100 subjects/study, and RCTs with at least 50 participants per arm. RESULTS We identified 41 observational studies. The prevalence of hypovitaminosis D, defined as a 25‑hydroxyvitamin D [25(OH)D] level below the desirable level of 20 ng/ml, ranged between 12-96% in children and adolescents, and 54-90% in pregnant women. In adults, it ranged between 44 and 96%, and the mean 25(OH)D varied between 11 and 20 ng/ml. In general, significant predictors of low 25(OH)D levels were female gender, increasing age and body mass index, veiling, winter season, use of sun screens, lower socioeconomic status, and higher latitude.We retrieved 14 RCTs comparing supplementation to control or placebo, published during the period 2015-2017: 2 in children, 8 in adults, and 4 in pregnant women. In children and adolescents, a vitamin D dose of 1000-2000 IU/d was needed to maintain serum 25(OH)D level at target. In adults and pregnant women, the increment in 25(OH)D level was inversely proportional to the dose, ranging between 0.9 and 3 ng/ml per 100 IU/d for doses ≤2000 IU/d, and between 0.1 and 0.6 ng/ml per 100 IU/d for doses ≥3000 IU/d. While the effect of vitamin D supplementation on glycemic indices is still controversial in adults, vitamin D supplementation may be protective against gestational diabetes mellitus in pregnant women. In the only identified study in the elderly, there was no significant difference between 600 IU/day and 3750 IU/day doses on bone mineral density. We did not identify any fracture studies.The available vitamin D guidelines in the region are based on expert opinion, with recommended doses between 400 and 2000 IU/d, depending on the age category, and country. CONCLUSION Hypovitaminosis D is prevalent in the MENA region, and doses of 1000-2000 IU/d may be necessary to reach a desirable 25(OH)D level of 20 ng/ml. Studies assessing the effect of such doses of vitamin D on major outcomes, and confirming their long term safety, are needed.
Collapse
Key Words
- 25(OH)D, 25‑hydroxyvitamin D
- ALKP, alkaline phosphatase
- BMC, bone mineral content
- BMD, bone mineral density
- BMI, body mass index
- CARS, Childhood Autism Rating Scale
- CDC, Centers for Disease Control
- Ca, Calcium
- DEQAS, Vitamin D External Quality Assessment Scheme
- DXA, dual-energy X-ray absorptiometry
- ESCEO, European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis
- GDM, Gestational Diabetes Mellitus
- HOMA-IR, homeostatic model assessment of insulin resistance
- HbA1c, glycated hemoglobin
- Hypovitaminosis D
- ID LC-MS/MS, isotope dilution liquid chromatography - tandem mass spectrometry
- IOM, Institute of Medicine
- KSA, Kingdom of Saudi Arabia
- LCMS/MS, liquid chromatography-tandem mass spectrometry
- MENA, Middle East North Africa
- Middle East and North Africa
- OSTEOS, Lebanese Society for Osteoporosis and Metabolic Bone Disorders
- PO4, phosphorus
- PTH, parathyroid hormone
- Predictors
- RCT, randomized controlled trials
- ROB, risk of bias
- RR, relative risk
- SDp, pooled standard deviation
- T2D, type 2 diabetes
- UAE, United Arab Emirates
- UVB, ultraviolet B
- VDDR2, vitamin d dependent rickets type 2
- VDR, vitamin d receptor
- VDSP, Vitamin D Standardization Program
- Vitamin D assays
- Vitamin D guidelines
- WM, weighted mean
Collapse
Affiliation(s)
- Marlene Chakhtoura
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Disorders, American University of Beirut Medical Center, Beirut, P.O. Box: 113-6044/C8, Lebanon
| | | | | | | |
Collapse
|
27
|
Healthy changes in some cardiometabolic risk factors accompany the higher summertime serum 25-hydroxyvitamin D concentrations in Iranian children: National Food and Nutrition Surveillance. Public Health Nutr 2018; 21:2013-2021. [PMID: 29580303 DOI: 10.1017/s1368980018000630] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To investigate seasonal variations of vitamin D status at different latitudes and if these changes are accompanied by corresponding variations in certain health parameters in children living in a broad latitudinal range in Iran. DESIGN Longitudinal study. SUBJECTS In total, 530 apparently healthy children aged 5-18 years were randomly selected from six regions of Iran with a latitudinal gradient from 29°N to 37·5°N. All anthropometric and biochemical assessments were performed twice during a year (summer, winter). High BMI (Z-score >1), low HDL cholesterol (150 mg/dl) were considered cardiometabolic risk factors. RESULTS Serum 25-hydroxyvitamin D (25(OH)D) showed between-season variation, with significantly higher concentrations (mean (sd)) in summer v. winter (43 (29) v. 27 (18) nmol/l; P33°N v. <33°N: 4·5; 0·09, 9·0; P=0·04) were predictors of change of serum 25(OH)D between two seasons. CONCLUSIONS Summertime improvement of vitamin D status was accompanied by certain improved cardiometabolic risk factors, notably serum TAG, total cholesterol and BMI, in children.
Collapse
|
28
|
Ayabe T, Yamamoto-Hanada K, Mezawa H, Konishi M, Ishitsuka K, Saito M, Fukami M, Michikawa T, Yamazaki S, Senju A, Kusuhara K, Kawamoto T, Sanefuji M, Kato K, Oda M, Mitsubuchi H, Katoh T, Monden Y, Mise N, Kayama F, Saito H, Ohya Y. Regional differences in infant 25-Hydroxyvitamin D: Pilot study of the Japan Environment and Children's Study. Pediatr Int 2018; 60:30-34. [PMID: 28833908 DOI: 10.1111/ped.13410] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 08/04/2017] [Accepted: 08/14/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND In recent years, a resurgence in the number of infants with vitamin D deficiency has been noted. In addition to seasonal differences in exposure to ultraviolet (UV) rays, regional differences in dietary habits and lifestyles may affect susceptibility to vitamin D deficiency. No studies have been conducted, however, on infants in multiple regions of Japan to determine the extent of differences in vitamin D status. METHODS 25-Hydroxyvitamin D (25OHD) was measured on radioimmunoassay in 126 infants aged 2-4 years, who participated in the Pilot Study of the Japan Environment and Children's Study (JECS) by the Ministry of Environment of Japan. A multiple regression model with 25OHD level as the outcome variable, and season and region as explanatory variables, was generated. RESULTS Both region and season during which infants participated in this study significantly affected 25OHD level (P = 0.0087 and <0.0001, respectively; Wald test). Reflecting decreased exposure to UV rays, infants who were examined in winter had lower 25OHD than those examined in summer. Infants from both Fukuoka Prefecture (33°N) and Kumamoto Prefecture (32°N), however, had lower 25OHD than those from Tochigi Prefecture (36°N), contrary to expectations given the extent of UV exposure. CONCLUSIONS Regional differences in daily habits and/or environmental factors affect 25OHD level in Japanese infants. The JECS is expected to identify those factors to provide guidance on preventing infantile vitamin D deficiency.
Collapse
Affiliation(s)
- Tadayuki Ayabe
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Kiwako Yamamoto-Hanada
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Hidetoshi Mezawa
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Mizuho Konishi
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Kazue Ishitsuka
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Mayako Saito
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Maki Fukami
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Takehiro Michikawa
- Programme Office for Japan Environment and Children's Study, National Institute for Environmental Studies, Tsukuba, Japan
| | - Shin Yamazaki
- Programme Office for Japan Environment and Children's Study, National Institute for Environmental Studies, Tsukuba, Japan
| | - Ayako Senju
- Regional Center for Pilot Study of Japan Environment and Children's Study, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Koichi Kusuhara
- Regional Center for Pilot Study of Japan Environment and Children's Study, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Toshihiro Kawamoto
- Programme Office for Japan Environment and Children's Study, National Institute for Environmental Studies, Tsukuba, Japan.,Regional Center for Pilot Study of Japan Environment and Children's Study, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Masafumi Sanefuji
- Regional Center for Pilot Study of Japan Environment and Children's Study, Kyushu University, Fukuoka, Japan
| | - Kiyoko Kato
- Regional Center for Pilot Study of Japan Environment and Children's Study, Kyushu University, Fukuoka, Japan
| | - Masako Oda
- Regional Center for Pilot Study of Japan Environment and Children's Study, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Mitsubuchi
- Regional Center for Pilot Study of Japan Environment and Children's Study, Kumamoto University, Kumamoto, Japan
| | - Takahiko Katoh
- Regional Center for Pilot Study of Japan Environment and Children's Study, Kumamoto University, Kumamoto, Japan
| | - Yukifumi Monden
- Regional Center for Pilot Study of Japan Environment and Children's Study, Jichi Medical University, Shimotsuke, Japan
| | - Nathan Mise
- Regional Center for Pilot Study of Japan Environment and Children's Study, Jichi Medical University, Shimotsuke, Japan
| | - Fujio Kayama
- Regional Center for Pilot Study of Japan Environment and Children's Study, Jichi Medical University, Shimotsuke, Japan
| | - Hirohisa Saito
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Yukihiro Ohya
- Medical Support Center for Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| |
Collapse
|
29
|
Nikooyeh B, Neyestani TR. Poor vitamin D status increases the risk of anemia in school children: National Food and Nutrition Surveillance. Nutrition 2017; 47:69-74. [PMID: 29429539 DOI: 10.1016/j.nut.2017.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/15/2017] [Accepted: 09/16/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVES This study aimed to investigate the association between 25-hydroxyvitamin D (25[OH]D) concentrations and the risk of anemia in a large cohort of children with consideration for the effects of sex, body mass index (BMI), serum intact parathyroid hormone (iPTH) concentrations, and iron level status. METHODS A total of 937 children (493 boys, 444 girls) ages 9 to 12 y were enrolled in a cross-sectional study. The children underwent various examinations including anthropometric measurements and blood sampling. RESULTS Overall, 13.3% of the children were anemic and 64.2% and 28.1% of the subjects had a vitamin D deficiency (<25 nmol/L) and insufficiency (25-50 nmol/L), respectively. Approximately 13% of the children had concurrent low hemoglobin and hypovitaminosis D levels. The prevalence of hypovitaminosis D in the group of children with anemia was 96.8% compared with 91.6% in the non-anemic group (P = 0.046). Mean 25(OH)D concentrations were significantly lower in the anemic children compared with the non-anemic children (19.6 ± 13.3 vs. 24.0 ± 23.1 nmol/L; P = 0.003). After controlling for sex and BMI, children with a vitamin D deficiency were almost 3.45 times more likely to be anemic compared with children with a vitamin D sufficiency (95% confidence interval [CI], 1.21-9.81). The increased risk of anemia was found to start significantly at 25(OH)D < 44 nmol/L (17.6 ng/mL; odds ratio: 2.29; 95% CI, 1.07-4.91, P = 0.032). CONCLUSIONS These findings strongly suggest an association between low circulating concentrations of 25(OH)D and anemia in a large, representative sample of children, even after adjustment for sex, age, BMI, and iPTH.
Collapse
Affiliation(s)
- Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
30
|
Nikooyeh B, Abdollahi Z, Hajifaraji M, Alavi-Majd H, Salehi F, Yarparvar AH, Neyestani TR. Vitamin D status and cardiometabolic risk factors across latitudinal gradient in Iranian adults: National food and nutrition surveillance. Nutr Health 2017; 23:87-94. [PMID: 28397539 DOI: 10.1177/0260106017702918] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND This study aimed to evaluate the vitamin D status in an adult population across latitudinal gradient and to investigate its possible associations with certain cardiometabolic risk factors. METHODS A total of 1406 healthy subjects aged 19-60 years were randomly selected from six regions of Iran across latitudinal gradient from 29° N to 37.5° N. Anthropometric and biochemical assessments were performed. The combination of high body mass index (>25 kg/m2), low high-density lipoprotein cholesterol (< 40 mg/dl in males and < 50 mg/dl in females) and high triglycerides (> 150 mg/dl) was defined as cardiometabolic risk factors. RESULTS The mean concentration of serum 25-hydroxycalciferol (25(OH)D) was 26.8±17.7 nmol/l. There were no significant differences in the mean serum 25(OH)D levels among different latitudes. Undesirable vitamin D status (deficiency and insufficiency) was found in 90.7% of the subjects. After adjustment for age and gender, the association between weight status and serum 25(OH)D was significant ( p< 0.04, odds ratio:1.49; confidence interval: 1.01-2.19). The prevalence of cardiometabolic risk factors among the subjects with serum 25(OH)D less than 27.5 nmol/l was significantly higher than those with serum calcidiol concentrations above 27.5 nmol/l (13.3% vs. 10.0%, p = 0.033). CONCLUSION Undesirable vitamin D status is highly prevalent among Iranian adults of both sexes irrespective of latitude and even in sunny regions. The occurrence of cardiometabolic risk factors was significantly higher in those subjects with circulating calcidiol concentrations below 27.5 nmol/l.
Collapse
Affiliation(s)
- Bahareh Nikooyeh
- 1 Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Abdollahi
- 2 Nutrition Office, Iran Ministry of Health, Treatment and Medical Education, Tehran, Iran
| | - Majid Hajifaraji
- 3 Department of Nutritional Policy-Making Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Alavi-Majd
- 4 Department of Biostatistics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Forouzan Salehi
- 2 Nutrition Office, Iran Ministry of Health, Treatment and Medical Education, Tehran, Iran
| | | | - Tirang R Neyestani
- 1 Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|