Background: Although vitamin D deficiency has been studied in various adult populations, there are few data on the prevalence of this nutritional deficiency among healthy adolescents in the United Arab Emirates (UAE). This study was conducted to determine the prevalence of vitamin D deficiency and to examine its correlates in adolescents aged 15 to 18 years.
Methods: This was a cross-sectional study in urban schools. Healthy adolescents (N=315) from a sample of 8 schools were randomly selected from the 142 schools in Al Ain, Abu Dhabi Emirate. Outcomes measured included serum concentrations of 25-hydroxy vitamin D (25OHD), plasma lipids, blood sugar, blood pressure and anthropometric data, nutrition and lifestyle variables.
Results: Fourty-one participants (19.7%) were vitamin D deficient (serum 25OHD level ≤15 ng/mL [≤37.5 nmol/L]. Using a cutoff level of 25(OH) D of ≤20 ng/ml [≤50 nmol/l] 143 participants (45.4%) were vitamin D insufficient. Overall 65.1% of study participants were either vitamin D deficient or insufficient. The prevalence of vitamin D deficiency varied between boys (10%) and girls (28%). In a final multivariate model, serum 25(OH) D concentrations were inversely correlated with female gender, consumption of fast food per week, and body mass index and positively correlated with physical activity scores after adjustment for age.
Conclusions: Vitamin D deficiency and insufficiency were highly prevalent in adolescents, and more common in girls.
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http://dx.doi.org/10.1186/1471-2458-13-33 | DOI Listing |
Neurosciences (Riyadh)
January 2025
From the Neurology of Unit, Department of Medicine, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia.
Marchiafava-Bignami disease (MBD) is a rare neurological disorder typically occurring in alcoholic patients. The main disease mechanism is hypothesized to be vitamin B-complex deficiency due to malnutrition. In the literature, there have been few reported cases of the disease occurring in patients who have undergone bariatric surgery.
View Article and Find Full Text PDFNutr Res
December 2024
Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung-si, Republic of Korea. Electronic address:
Air pollutants directly and indirectly cause vitamin D deficiency (VDD). In addition, smoking increases oxidative stress and accelerates skin aging, thereby reducing the body's vitamin D concentration. Previous study reported that VDD increases total cholesterol concentration by reducing vitamin D receptor activity.
View Article and Find Full Text PDFEar Nose Throat J
January 2025
Department of Audiology and Speech Language Pathology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, India.
Vitamin B12 is an essential nutrient crucial for overall health, and deficiencies can lead to hearing loss. The aim of the systematic review was to explore the intricate connection between vitamin B12 deficiency and hearing loss using a systematic literature review. A systematic literature search was carried out to identify the articles exploring the connection between vitamin B12 deficiency and hearing loss.
View Article and Find Full Text PDFNutrients
December 2024
Department of Anesthesiology, Reanimatology and Intensive Care, University Hospital Split, 21000 Split, Croatia.
Background: Studies have shown a high prevalence of vitamin D deficiency in critically ill patients, and these patients are at higher risk for pneumonia and have increased incidence of sepsis and mortality. In this study, we reviewed available literature from randomized controlled trials (RCTs) on vitamin D supplementation in critically ill patients and summarized the evidence in this narrative review.
Methods: Randomized controlled trials that included vitamin D supplementation as an intervention were eligible for inclusion.
Nutrients
December 2024
Department of Endocrinology and Nutrition, Virgen de la Victoria Hospital University Hospital, 29010 Málaga, Spain.
Background And Objectives: the COVID-19 pandemic underscored the necessity of understanding the factors influencing susceptibility and disease severity, as well as a better recovery of functional status, especially in postcritical patients. evidence regarding the efficacy of vitamin D supplementation in reducing the severity of COVID-19 is still insufficient due to the lack of primary robust trial-based data and heterogeneous study designs. the principal aims of our study were to determine the impact of vitamin D deficiency or insufficiency on complications during intensive care unit (icu) stay, as well as its role in muscle mass and strength improvement as well as morphofunctional recovery during a multispecialty 6-month follow-up program based on adapted nutritional support and specific physical rehabilitation.
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