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Patriota P, Borloz S, Ruiz I, Bouthors T, Rezzi S, Marques-Vidal P, Hauschild M. High Prevalence of Hypovitaminosis D in Adolescents Attending a Reference Centre for the Treatment of Obesity in Switzerland. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9101527. [PMID: 36291463 PMCID: PMC9601272 DOI: 10.3390/children9101527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
Abstract
Background: Hypovitaminosis D is common in populations with obesity. This study aimed at assessing (1) the prevalence of hypovitaminosis D and (2) the associations between vitamin D levels and cardiovascular risk factors in adolescents attending a reference centre for the treatment of obesity. Design: Cross-sectional pilot study conducted in the paediatric obesity unit of the Lausanne university hospital, Switzerland. Methods: Participants were considered eligible if they (1) were aged between 10 to 16.9 years and (2) consulted between 2017 and 2021. Participants were excluded if (1) they lacked vitamin D measurements or (2) the vitamin D measurement was performed one month after the base anthropometric assessment. Hypovitaminosis D was considered if the vitamin D level was <30 ng/mL (<75 nmol/L). Severe obesity was defined as a BMI z-score > 3 SD. Results: We included 52 adolescents (31% girls, mean age 13 ± 2 years, 33% with severe obesity). The prevalence of hypovitaminosis D was 87.5% in girls and 88.9% in boys. The vitamin D levels were inversely associated with BMI, Spearman r and 95% CI: −0.286 (−0.555; −0.017), p = 0.037; they were not associated with the BMI z-score: −0.052 (−0.327; 0.224), p = 0.713. The vitamin D levels were negatively associated with the parathormone levels (−0.353 (−0.667; −0.039), p = 0.028) and positively associated with the calcium levels (0.385 (0.061; 0.708), p = 0.020), while no association was found between vitamin D levels and blood pressure and lipid or glucose levels. Conclusion: almost 9 out of 10 adolescents with obesity in our cohort presented with hypovitaminosis D. Hypovitaminosis D does not seem to be associated with a higher cardiovascular risk profile in this group.
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Affiliation(s)
| | - Sylvie Borloz
- Paediatric Endocrinology and Diabetology Unit, Service of Pediatrics, Department Women-Mother-Child—CHUV, Children’s Hospital—CHUV, Chem. de Montétan 16, 1004 Lausanne, Switzerland
| | - Inge Ruiz
- Paediatric Endocrinology and Diabetology Unit, Service of Pediatrics, Department Women-Mother-Child—CHUV, Children’s Hospital—CHUV, Chem. de Montétan 16, 1004 Lausanne, Switzerland
| | - Thérèse Bouthors
- Paediatric Endocrinology and Diabetology Unit, Service of Pediatrics, Department Women-Mother-Child—CHUV, Children’s Hospital—CHUV, Chem. de Montétan 16, 1004 Lausanne, Switzerland
| | - Serge Rezzi
- Swiss Nutrition and Health Foundation, 1066 Epalinges, Switzerland
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, 1015 Lausanne, Switzerland
| | - Michael Hauschild
- Paediatric Endocrinology and Diabetology Unit, Service of Pediatrics, Department Women-Mother-Child—CHUV, Children’s Hospital—CHUV, Chem. de Montétan 16, 1004 Lausanne, Switzerland
- Correspondence: ; Tel.: +41-021-314-87-73
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Durá-Travé T, Gallinas-Victoriano F. Vitamin D and Parathyroid Hormone during Growth Hormone Treatment. CHILDREN (BASEL, SWITZERLAND) 2022; 9:725. [PMID: 35626902 PMCID: PMC9139724 DOI: 10.3390/children9050725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
Background. There is some controversy concerning a potential interaction between vitamin D and PTH and the GH/IGF-1 axis. The goal of this study is to assess vitamin D and PTH status in children with GH deficiency at diagnostic and during treatment with rhGH. Methods. Longitudinal and descriptive study in 110 patients, aged 3.3−9.1 years, with GH deficiency (GHD group) treated with rhGH. At diagnosis and after 12, 24, 36, and 48 months of treatment, a clinical (height, weight, and bone age) and laboratory (phosphorus, calcium, calcidiol, PTH, IGF-1) evaluation was performed. Concurrently, 377 healthy children, aged 3.8−9.7 years, were enrolled and constituted a control group. Vitamin D status was stated in accordance to the U.S. Endocrine Society criteria. Results. No significant differences were found in the prevalence of vitamin D deficiency among control (11.43%) and GHD (13.6%) groups at the moment of diagnosis, remaining without significant changes at 12 (12.9%), 24 (14.6%), 36 (13.1%), and 48 months (13.3%) of treatment. There were not any significant differences in serum levels of calcium, phosphorus, and calcidiol, but a steady increase (p < 0.001) in PTH was detected. Conclusions. Prepubertal patients with GH deficient do not appear to have a higher risk of vitamin D deficiency than healthy subjects, and with treatment with rhGH, no changes in the organic content of vitamin D were observed although a significant increase in PTH levels was detected.
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Affiliation(s)
- Teodoro Durá-Travé
- Department of Pediatrics, School of Medicine, University of Navarra, Avenue Irunlarrea 1, 31008 Pamplona, Spain
- Department of Pediatrics, Navarra Hospital Complex, 31008 Pamplona, Spain;
- Navarrabiomed (Biomedical Research Center), Health Department, Government of Navarra, 31008 Pamplona, Spain
| | - Fidel Gallinas-Victoriano
- Department of Pediatrics, Navarra Hospital Complex, 31008 Pamplona, Spain;
- Navarrabiomed (Biomedical Research Center), Health Department, Government of Navarra, 31008 Pamplona, Spain
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25-Hydroxyvitamin D and Cardiorespiratory Fitness in Prepubertal Overweight and Obese Children. Nutrients 2021; 13:nu13051597. [PMID: 34064614 PMCID: PMC8151824 DOI: 10.3390/nu13051597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 01/19/2023] Open
Abstract
Childhood obesity has become a major global health problem. Vitamin D deficiency and poor cardiorespiratory fitness are highly prevalent in children with overweight or obesity, but little is known about their relationships. In this study, we aimed to analyze the relationship between serum 25-hydroxyvitamin D (25(OH)D) and cardiorespiratory fitness parameters in prepubertal obese and overweight children. A cross-sectional design with a sample of 57 prepubertal children, aged 9–11 years, with overweight or obesity was used. The fasting concentration of 25(OH)D was analyzed with a chemiluminescent microparticle immunoassay. Fat and lean body masses were determined by using DXA. Maximal oxygen uptake (VO2max) was measured with the maximal treadmill test. A total of 68.4% of the sample had sufficient levels of 25(OH)D. As expected, their cardiorespiratory fitness was poor compared with that of normal-weight children, but 60% of the group exceeded the median obesity-specific reference values. No differences were found between the sexes for relative VO2max or 25(OH)D levels. Moreover, no correlations were found between 25(OH)D and body composition or cardiorespiratory parameters for sex or vitamin D groups. Vitamin D status seems not to be directly related to body composition or cardiorespiratory fitness in prepubertal overweight or obese children.
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Fiamenghi VI, Mello EDD. Vitamin D deficiency in children and adolescents with obesity: a meta-analysis. J Pediatr (Rio J) 2021; 97:273-279. [PMID: 33022267 PMCID: PMC9432231 DOI: 10.1016/j.jped.2020.08.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/25/2020] [Accepted: 08/03/2020] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE To evaluate the prevalence of vitamin D deficiency in obese children and adolescents when compared to eutrophic controls. METHODS Systematic review with meta-analysis covering studies with patients aged 0-18 years old diagnosed with obesity and vitamin D deficiency and control group of eutrophic patients. The studies were retrieved in the PubMed, Embase, and LILACS databases in December 2019. The search used the terms "obesity" in combination with "pediatric population" and "vitamin D". RESULTS Through the search 3155 articles were retrieved; and after analysis, 20 studies were selected according to the study objectives. A total of 24,600 children and adolescents were included. Through meta-analysis, the relative risk for the association between obesity and vitamin D deficiency in the pediatric population was 1.41 (95% CI: 1.26-1.59) (I² = 89%, p < 0.01). CONCLUSION Children and adolescents with obesity have higher risk of vitamin D deficiency.
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Affiliation(s)
- Verônica Indicatti Fiamenghi
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil.
| | - Elza Daniel de Mello
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil
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Simunovic M, Supe-Domic D, Karin Z, Degoricija M, Paradzik M, Skrabic R, Jukic A, Bozic J, Skrabic V. The Relationship of Vitamin D Status, Adherence to the Mediterranean Diet, and Physical Activity in Obese Children and Adolescents. J Med Food 2020; 24:385-393. [PMID: 32783677 DOI: 10.1089/jmf.2020.0032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Vitamin D deficiency is associated with a range of chronic diseases, including childhood obesity. Prevalence of vitamin D deficiency in obese children and adolescents ranges from 6.5% to 57%. This cross-sectional study included 92 obese patients with body mass index z-score >2 and 39 subjects in the control group. Anthropometric and laboratory patient assessment were performed, including the fasting 25-hydroxyvitamin D (25(OH)D). Adherence to the Mediterranean diet was assessed by Mediterranean Diet Quality Index for children and adolescents (KIDMED index), while physical activity was evaluated by Physical Activity Questionnaire (PAQ). Serum levels of 25(OH)D were significantly lower in obese subjects compared to the control group (52.0 ± 17.93 vs. 64.09 ± 25.82 nmol/L, P = .003). The subgroup of obese patients with metabolic syndrome (MS) had significantly lower levels of serum vitamin D when compared to the subgroup of obese patients without MS and the control group (46.99 ± 17.11 vs. 54.58 ± 17.93 vs. 64.09 ± 25.82 nmol/L, P = .003). Obese patients with MS had lower PAQ score when compared to obese without MS and the control group (2.32 ± 0.55 vs. 2.49 ± 0.67 vs. 2.85 ± 0.63 nmol/L, P = .002), while no significant differences were observed in the KIDMED index (4.23 ± 1.81 vs. 4.21 ± 2.13 vs. 4.87 ± 2.29, P = .251), respectively. PAQ score was in positive correlation with serum levels of 25(OH)D (r = 0.305, P < .001). This study demonstrated that obese children and adolescents have significantly lower values of serum 25(OH)D. The positive correlation between vitamin D and PAQ score points to the importance of physical activity in the prevention of further cardiovascular complications and MS.
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Affiliation(s)
- Marko Simunovic
- Department of Pediatrics, University Hospital of Split, Split, Croatia
| | - Daniela Supe-Domic
- Department of Medical Laboratory Diagnostics, University Hospital of Split, Split, Croatia.,Department of Health Studies, University of Split, Split, Croatia
| | - Zeljka Karin
- Public Health Institute of Split and Dalmatia County, Split, Croatia
| | - Marina Degoricija
- Department of Medical Chemistry and Biochemistry, University of Split School of Medicine, Split, Croatia
| | - Martina Paradzik
- Department of Ophthalmology, University Hospital of Split, Split, Croatia
| | - Roko Skrabic
- University of Split School of Medicine, Split, Croatia
| | - Andrija Jukic
- University of Split School of Medicine, Split, Croatia
| | - Josko Bozic
- Department of Pathophysiology, University of Split School of Medicine, Split, Croatia
| | - Veselin Skrabic
- Department of Pediatrics, University Hospital of Split, Split, Croatia.,Department of Pediatrics, University of Split School of Medicine, Split, Croatia
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