scholarly journals Vitamin D Deficiency in Children and Adolescents: Role of Puberty and Obesity on Vitamin D Status

2021 ◽  
Vol 14 ◽  
pp. 117863882110187
Author(s):  
Hedyeh Saneifard ◽  
Marjan Shakiba ◽  
Ali Sheikhy ◽  
Leila Baniadam ◽  
Fatemeh Abdollah Gorji ◽  
...  
Keyword(s):  
Vitamin D ◽  
Children And Adolescents ◽  
Vitamin D Deficiency ◽  
Tanner Stage ◽  
Additional Risk Factor ◽  
Healthy Children ◽  
Vitamin D Status ◽  
Obese Children ◽  
Increased Risk ◽  
Vitamin D Levels

Background: Vitamin D deficiency is common among children and adolescents and can be affected by several factors such as puberty and obesity. Objective: The aim of this study was to evaluate vitamin D status in children and adolescents and to analyse the influence of puberty and obesity on its level. Method: A cross-sectional study was carried-out, in which clinical and biochemical data were gathered from 384 healthy children and adolescents between May 2019 to May 2020. Results: 220 females and 164 males were enrolled (aged 7-16 years; mean ± SD: 11 ± 2.5). Vitamin D deficiency was found in 49% of the total cases and was significantly more prevalent in females than males (33.1% in female; 15.9% in male, P < .001). Mean vitamin D level was lower in obese children compared with non-obese ( P < .001). Non-obese group had significantly higher levels of vitamin D in Tanner stage IV of puberty than obese individuals (20.1 ± 17.0 vs 5.4 ± 2.0) ( P = .03). Vitamin D levels were significantly lower in females than males only in Tanner stage II (12.3 ± 9.0 vs 19.6 ± 16.6) ( P = .005). The lowest level of Vitamin D was in Tanner stage Ⅳ-Ⅴ in boys and in Tanner stage Ⅱ-Ⅲ in girls ( P < .001). Conclusion: Puberty is an additional risk factor for vitamin D deficiency especially in girls and obese children. This increased risk, together with the fact that most important time for building a proper skeleton is during childhood and adolescent, makes it essential to monitor vitamin D in these age groups.

scholarly journals Is there a benefit of vitamin D supplementation in deficient children and adolescents suffering from obesity? A meta-analysis

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M F Nassar ◽  
E K Emam ◽  
M F Allam
Keyword(s):  
Vitamin D ◽  
Children And Adolescents ◽  
Vitamin D Deficiency ◽  
Meta Analysis ◽  
Vitamin D Supplementation ◽  
Obese Children ◽  
Intramuscular Dose ◽  
Vitamin D Levels ◽  
Pubmed Search ◽  
Lower Vitamin

Abstract Background and objectives Both childhood obesity and vitamin D deficiency are common in the Middle East. This systematic review/meta-analysis aims to highlight the effect of vitamin D supplementation in deficient children suffering from obesity. Methods Published clinical studies on vitamin D supplementation in obese children and adolescents with vitamin D deficiency were identified through a comprehensive MEDLINE/PubMed search (from July 1966 to November 2017). Outcomes intended after vitamin D supplementation were improvements in vitamin D status, BMI alterations and appetite changes. The inclusion criteria were children aged 2 to 18 years of both sexes in clinical trials that specified the oral and/or intramuscular dose of vitamin D supplementation. Results Ten studies were retrieved, but only six were relevant. First, supplemented obese children and adolescents were compared to non-obese controls; thereafter, supplemented obese children and adolescents were compared to matching obese peers given placebo. Pooled risks from the two studies that evaluated the number of obese and non-obese children and adolescents who improved upon vitamin D supplementation revealed that obesity poses a risk for not benefiting from the vitamin D supplementation regardless of the dose and the duration of supplementation. Pooled results from the six retrieved studies that compared supplemented obese children and adolescents to matching non-obese or obese peers given placebo revealed significantly lower vitamin D levels in obese participants than in non-obese peers. Conclusion Vitamin D levels are significantly lower in obese children and adolescents with obesity, posing a risk for not benefiting from vitamin D supplementation regardless of the dose and duration of supplementation. Our results suggest that only with simultaneous weight adjustment strategies, vitamin D sufficiency would be achieved more effectively. Vitamin D supplementation in deficient children suffering from obesity.

scholarly journals Vitamin D Deficiency and Increased Risk of Bladder Carcinoma: A Meta-Analysis

2015 ◽  
Vol 37 (5) ◽  
pp. 1686-1692 ◽  
Author(s):  
Hui Zhang ◽  
Hui Zhang ◽  
Xiuhua Wen ◽  
Yonggang Zhang ◽  
Xueli Wei ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Bladder Carcinoma ◽  
Meta Analysis ◽  
Serum Vitamin ◽  
Vitamin D Status ◽  
Serum Vitamin D ◽  
Increased Risk ◽  
Vitamin D Levels ◽  
Carcinoma Risk

Background/Aims: Vitamin D status in relation to bladder carcinoma risk was still inconsistent. This study was carried out to evaluate the relationship between vitamin D status and bladder carcinoma risk through a meta-analysis approach. Methods: Pubmed, Web of Science, CNKI, and Embase were searched systemically to find eligible studies from the earliest available date to April 16, 2015. The search terms “vitamin D”, “25-hydroxyvitamin D”, “bladder cancer” or “bladder carcinoma” were used to retrieve relevant studies. The exposure of interest was intake of vitamin D or serum vitamin D levels, and the outcome of interest was bladder carcinoma incidence or mortality. The pooled risk ratio (RR) values and their 95%CIs were calculated through meta-analysis. Results: Seven studies with a total of 62,141 participants met the inclusion criteria and were finally included into the meta-analysis. There was no heterogeneity among those included studies (I2 = 0%, P = 0.53). The pooled RR of bladder carcinoma for the lowest category versus the highest category of vitamin D was 1.34 (95% CI 1.17-1.53, P < 0.0001). Sensitivity analysis by omitting one study by turns showed all the pooled RRs were statistically significant. Meta-analysis of 5 studies reporting outcomes of serum vitamin D levels also showed that the low serum vitamin D level was associated with increased risk of bladder carcinoma (RR = 1.32, 95%CI 1.15-1.52, P = 0.0001). No obvious risk of publication bias was observed. Conclusion: Vitamin D deficiency is associated with increased risk of bladder carcinoma in present study.

scholarly journals Vitamin D Levels in Children and Adolescents with Cerebral Palsy: Cross-sectional Study / Níveis de Vitamina D em Crianças e Adolescentes com Paralisia Cerebral: Estudo Transversal

2021 ◽  
Vol 4 (3) ◽  
pp. 11938-11949
Author(s):  
Marcela Almeida Linden ◽  
Elizete Aparecida Lomazi ◽  
Gabriel Hessel ◽  
Maria Ângela Bellomo-Brandão
Keyword(s):  
Vitamin D ◽  
Cerebral Palsy ◽  
Children And Adolescents ◽  
Vitamin D Deficiency ◽  
Sun Exposure ◽  
Food Sources ◽  
Control Group ◽  
Case Group ◽  
Healthy Children ◽  
Vitamin D Levels

Aim: Tetraparetic Cerebral Palsy (TCP) patients may present risks factors for Vitamin D deficiency such as increased risk of malnutrition and possibly infrequent sun exposure. The present study aimed to compare the vitamin D status in this population of TCP pediatric patients (Case Group) and compare them with healthy children and adolescents (Control Group). Methods: The clinical data obtained were: gender, age, weight, height, nutritional status, consumption of vitamin D food sources, sun exposure and serum levels of vitamin D. Vitamin D deficiency was defined as 20 ng/mL or less of 25(OH)D; “insufficiency” was defined as between 21-29 ng/mL; “sufficiency” was defined as between 30-100 ng/mL.1 Results: Sixty patients aged 3 to 20 years old were divided into two groups: the Control Group (n=30) and the Case Group (n=30) composed of individuals with TCP. Vitamin D levels did not differ between groups; the mean levels were 26.65 ng/mL (SD: 10.51) in the Case Group and, 28.93 ng/mL (SD: 9.26) in the Control Group. Conclusion: There was no difference identified between vitamin D levels among TCP and control patients, and no relationship between risk factors and serum 25(OH)D levels was observed. Even though Brazil is a tropical country with abundant sunshine during most of the year, there is still a considerable number of individuals with vitamin D classifications of insufficiency and deficiency in our study (N= 34/60). This should be alarming for healthcare professionals who work with the pediatric population, which is a population at risk for the development of disability.

Increased Risk of Blount Disease in Obese Children and Adolescents With Vitamin D Deficiency

2010 ◽  
Vol 30 (8) ◽  
pp. 879-882 ◽  
Author(s):  
Corey O. Montgomery ◽  
Karen L. Young ◽  
Mark Austen ◽  
Chan-Hee Jo ◽  
Robert Dale Blasier ◽  
...  
Keyword(s):  
Vitamin D ◽  
Children And Adolescents ◽  
Vitamin D Deficiency ◽  
Obese Children ◽  
Increased Risk ◽  
Blount Disease

scholarly journals Vitamin D and Cardiovascular Disease: An Updated Narrative Review

2021 ◽  
Vol 22 (6) ◽  
pp. 2896
Author(s):  
Armin Zittermann ◽  
Christian Trummer ◽  
Verena Theiler-Schwetz ◽  
Elisabeth Lerchbaum ◽  
Winfried März ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Vitamin D ◽  
High Risk ◽  
General Population ◽  
Vitamin D Deficiency ◽  
Specific Gene ◽  
Vitamin D Status ◽  
Cvd Risk ◽  
Severe Vitamin ◽  
Increased Risk

During the last two decades, the potential impact of vitamin D on the risk of cardiovascular disease (CVD) has been rigorously studied. Data regarding the effect of vitamin D on CVD risk are puzzling: observational data indicate an inverse nonlinear association between vitamin D status and CVD events, with the highest CVD risk at severe vitamin D deficiency; however, preclinical data and randomized controlled trials (RCTs) show several beneficial effects of vitamin D on the surrogate parameters of vascular and cardiac function. By contrast, Mendelian randomization studies and large RCTs in the general population and in patients with chronic kidney disease, a high-risk group for CVD events, largely report no significant beneficial effect of vitamin D treatment on CVD events. In patients with rickets and osteomalacia, cardiovascular complications are infrequently reported, except for an increased risk of heart failure. In conclusion, there is no strong evidence for beneficial vitamin D effects on CVD risk, either in the general population or in high-risk groups. Whether some subgroups such as individuals with severe vitamin D deficiency or a combination of low vitamin D status with specific gene variants and/or certain nutrition/lifestyle factors would benefit from vitamin D (metabolite) administration, remains to be studied.

Serum levels of 25(OH)D are not associated with venous thromboembolism in the elderly population

2016 ◽  
Vol 115 (01) ◽  
pp. 169-175 ◽  
Author(s):  
Aurélien Delluc ◽  
Marie-Pierre Moineau ◽  
Cécile Tromeur ◽  
Maelenn Gouillou ◽  
Karine Lacut ◽  
...  
Keyword(s):  
Vitamin D ◽  
Venous Thromboembolism ◽  
Seasonal Variations ◽  
Elderly Population ◽  
Serum Levels ◽  
The Elderly ◽  
Vitamin D Status ◽  
Increased Risk ◽  
Vitamin D Levels ◽  
Walking Capacity

SummaryThe prevalence of both vitamin D deficiency and venous thromboembolism (VTE) is important in the elderly. Previous studies have provided evidence for a possible association between vitamin D status and the risk of VTE. Thus, we aimed to investigate the association between vitamin D levels and VTE in the population aged 75 and over included in the EDITH case-control study. The association between vitamin D status and VTE was analysed. We also analysed the monthly and seasonal variations of VTE and vitamin D. Between May 2000 and December 2009, 340 elderly patients (mean age 81.5 years, 32 % men) with unprovoked VTE and their controls were included. The univariate and multivariate analysis found no significant association between serum levels of vitamin D and the risk of unprovoked VTE. In the unadjusted analysis, a higher BMI was statistically associated with an increased risk of VTE (OR 1.09; 95 % CI 1.05–1.13) whereas a better walking capacity and living at home were associated with a decreased rate of VTE: OR 0.57; 95 % CI 0.36–0.90 and 0.40; 95 % CI 0.25–0.66, respectively. Although not significant, more VTE events occurred during winter (p=0.09). No seasonal variations of vitamin D levels were found (p=0.11). In conclusion, in contrast with previous reports our findings suggest that vitamin D is not associated with VTE in the elderly population.

scholarly journals Vitamin D status in pregnant women and their newborns in a tertiary care hospital

2018 ◽  
Vol 7 (12) ◽  
pp. 5071
Author(s):  
Harleen Kour ◽  
Shashi Gupta ◽  
Swarn K. Gupta ◽  
Bawa Ram Bhagat ◽  
Gagan Singh
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Vitamin D Deficiency ◽  
Tertiary Care ◽  
North India ◽  
Care Hospital ◽  
Vitamin D Status ◽  
Pregnant Females ◽  
Vitamin D Levels ◽  
Maternal And Newborn

Background: In the recent years there has been an increased understanding of the role that vitamin D plays in regulation of cell growth, calcium absorption and immunity and its impact on the developing fetus and maternal health is of significant concern. This study aims at evaluating the Vitamin D status in pregnant women and their newborns.Methods: A cross sectional study was done on 100 pregnant females according to inclusion and exclusion criteria. At the time of delivery, maternal blood was collected, and newborn samples were taken from newborn side of umbilical cord and sent for analysis.Results: The prevalence of Vitamin D deficiency has been found to be 85% of pregnant females and 91% of the newborns. Only 5% of pregnant females and 1% of the newborns showed Vitamin D sufficiency. Maternal and newborn vitamin D levels show a positive correlation. Mean maternal and newborn Vitamin D levels were found to be 16.78±7.04 ng/mL and 11.29±5.75 ng/ml.Conclusions: Vitamin D deficiency is highly prevalent among pregnant women in north India. Low maternal vitamin D levels lead to vitamin D deficiency in the newborns also.

scholarly journals Influence of serum vitamin D status on severe sarcopenia among female patients with rheumatoid arthritis: the KURAMA database

2021 ◽  
Author(s):  
Hiroto Minamino ◽  
Masao Katsushima ◽  
Mie Torii ◽  
Wataru Yamamoto ◽  
Yoshihito Fujita ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Vitamin D ◽  
Muscle Mass ◽  
Gait Speed ◽  
Serum Vitamin ◽  
Vitamin D Status ◽  
Serum Vitamin D ◽  
Increased Risk ◽  
Vitamin D Levels ◽  
High Prevalence

Abstract Sarcopenia is an age-related disease with an increased risk of mortality. It is emerging that low serum vitamin D (25(OH)D) affects the sarcopenic state in general, but in rheumatoid arthritis (RA), these associations are not understood although the prevalence of vitamin D insufficiency is high in RA. We conducted a cross-sectional study of older female outpatients from our cohort (KURAMA) database. We measured skeletal muscle mass, handgrip strength, and gait-speed to diagnose severe sarcopenia. The serum 25(OH)D concentration was measured using electrochemiluminescence immunoassay. A total of 156 Patients (sarcopenia:44.9%, severe sarcopenia: 29.5%, and without sarcopenia: 25.6%) were enrolled. Classification of vitamin D status at a cutoff point of median 25(OH)D concentration revealed that low 25(OH)D status was associated with a high prevalence of severe sarcopenia and with low measured values of muscle mass, handgrip, and gait-speed. Furthermore, multiple regression analysis identified that low 25(OH)D status was associated with a high prevalence of severe sarcopenia (OR 6.00; 95% CI 1.99–18.08). In components of sarcopenia, both low physical performance and muscle mass were associated with low 25(OH) status. In conclusion, vitamin D levels are associated with severe sarcopenia and its components, and modification of vitamin D status including vitamin D supplementation may play a role in improving sarcopenia in RA.

scholarly journals Levels of vitamin D among overweight and obese adolescents: an observational study

2017 ◽  
Vol 4 (6) ◽  
pp. 1934
Author(s):  
T. Prashanth Reddy ◽  
Kishore Reddy ◽  
Madhu Sudhan Reddy ◽  
Manjunath G. A.
Keyword(s):  
Vitamin D ◽  
Observational Study ◽  
Vitamin D Deficiency ◽  
Overweight And Obesity ◽  
Dietary Factors ◽  
Vitamin D Status ◽  
Obese Adolescents ◽  
Vitamin D Levels ◽  
Study Results ◽  
Wide Range

Background: Normal growth and development requires vitamin D, and its deficiency compromises long term health and increases the risk of chronic disease. Severe vitamin D deficiency include rickets, osteomalacia, osteoporosis, increased risk of fracture, tooth loss. Studies indicate that vitamin D insufficiency (less severe than deficiency) is associated with a wide range of illnesses and chronic conditions, including type 1 diabetes, hypertension, multiple sclerosis and many types of cancer. Currently world is facing an unrecognized and untreated pandemic of vitamin D deficiency. This study aims at showing the relation between Vitamin D status and obesity in adolescent children and to know the dietary factors, life style factors like physical activity contributing to overweight and obesity in adolescents.Methods: Study design: This is an observational study of 30 overweight and obese adolescents based on BMI were studied and their Vitamin D levels were assessed.Results: A total of 14(46.7%) overweight and 16(53.3%) obese adolescents Vitamin D levels were assessed. 20(66.7%) had vitamin D levels <20ng/ml that is in the deficiency range.4(13.3%) had in the insufficiency range (21-30ng/ml), 6(20%) had in the sufficient range. Results shows vitamin D levels were significantly less in obese and overweight adolescents.Conclusions: Study results confirm that Vitamin D deficiency or insufficiency is common to obese and overweight adolescents, this may help to explain the relationship between obesity and several chronic diseases that are associated with poor Vitamin D status.

scholarly journals Hubungan Paparan Sinar Matahari, Status Gizi, dan Asupan Makan terhadap Kadar Vitamin D Anak dan Remaja Penderita Diabetes Mellitus Tipe 1

2021 ◽  
Vol 5 (1) ◽  
pp. 41
Author(s):  
Inggita Kusumastuty ◽  
Dian Handayani ◽  
Harjoedi Adji Tjahjono ◽  
Elsa Permata Sari ◽  
Silvy Kartika Rahayuningtyas ◽  
...  
Keyword(s):  
Vitamin D ◽  
Type 1 Diabetes ◽  
Food Intake ◽  
Nutritional Status ◽  
Children And Adolescents ◽  
Vitamin D Deficiency ◽  
Protein Intake ◽  
Sunlight Exposure ◽  
Vitamin D Levels

Background: Previous research state the correlation between vitamin D deficiency and Type 1 diabetes. The deficiency of Vitamin D is caused by vitamin D intake, sunlight exposure, or nutritional status. Indonesia, as a tropical country, is close to the equator and receives sunlight all year long. Little research has been done on vitamin D levels in children and adolescents with Type 1 Diabetes in Indonesia.Objective: The study aims to determine the relationship among sunlight exposure, nutritional status, food intake, and vitamin D levels in children and adolescents with Type 1 Diabetes.Methods: The study design was cross-sectional with a sample size of 31 children and adolescents aged 5-19 years. Sunlight exposure data were collected using the Sun Exposure Questionnaire form, nutritional status o BMI/age data were using the WHO Anthro, food intake data were using the Semi-Quantitative Food Frequency Questioner, and vitamin D level data were using the ELISA method. Statistical analysis was conducted by using SPSS Version 21 with Pearson and Spearman correlation test.Results: All respondents showed vitamin D deficiency. Most respondents had low sunlight exposure and nutritional status in the normoweight category. The majority of respondents had good energy and protein intake, excess fat, low carbohydrates, and low vitamin D and calcium.Conclusion:There is a positive relationship between sunlight exposure and vitamin D level (p = 0.001, r = 0.627). However, there is no relationship among nutritional status, protein intake, fat, carbohydrates, vitamin D and calcium on the level of vitamin D (p = 0.409; p = 0.240; p = 0.311; p = 0.822; p = 0.231; 0.382).

Sign in / Sign up

Export Citation Format

Share Document