background: this study aims to assess the relationship of serum mg and vitamin d levels in a nationally-representative sample of iranian adolescents. methods: the study participants consisted of 330 students, aged range from 10 to 18 years, consisting of an equal number of individuals with and without hypovitaminosis d. the correlation between serum 25 hydroxy vitamin d (25(oh) d) and magnesium...

background: vitamin d (vitd) deficiency is a common worldwide problem. some previous studies have shown that both zinc (zn) and vitd deficiency are prevalent in iran. this study aimed to assess the relationship of serum zn and vitamin d levels in a nationally representative sample of iranian children and adolescents.   methods: this case-control study was conducted as a sub-study of a school-ba...

Hypovitaminosis D is associated with cognitive decline in the elderly, but the issue of causality remains unresolved. Definitive evidence would include the visualization of brain lesions resulting from hypovitaminosis D. The aim of the present article is to determine, through a literature review, the location and nature of possible brain disorders in hypovitaminosis D. We found limited brain-im...

BACKGROUND There are limited data regarding the prevalence and risk factors relating to hypovitaminosis D in children of Thailand, a tropical country with abundant sunlight. The objective of this study was to assess the prevalence of hypovitaminosis D and examine factors associated with hypovitaminosis D in school-aged children in Bangkok, Thailand - a centrally located capital city. METHODS ...

BACKGROUND Chronic widespread pain (CWP) is a global musculoskeletal disorder leading to disability and a reduced quality of life. Low levels of serum vitamin D has long been proposed to be associated with CWP, but previous research remains inconclusive. OBJECTIVES To determine whether hypovitaminosis D was independently associated with CWP. STUDY DESIGN Meta-analysis of observational study...

Background: Vitamin D (VitD) deficiency is a common worldwide problem. Some previous studies have shown that both Zinc (Zn) and VitD deficiency are prevalent in Iran. This study aimed to assess the relationship of serum Zn and vitamin D levels in a nationally representative sample of Iranian children and adolescents.   Methods: This case-control study was conducted as a sub-study of a s...

OBJECTIVES: Recent studies have shown a high prevalence of hypovitaminosis D, defined as a serum 25-hydroxyvitamin D level less than 30 ng/ml, in both healthy populations and patients with chronic kidney disease. Patients undergoing kidney transplant are at an increased risk of skin cancer and are advised to avoid sunlight exposure. Therefore, these patients might share two major risk factors f...

Hypovitaminosis D and stress are common problems among the elderly. The aim of this cross-sectional nationally representative study was to evaluate the association between hypovitaminosis D and stress perception using large-scale nationally representative data from the Korea National Health and Nutrition Examination Survey (2012-2013). In our study, a total of 1393 elders (≥65 years old) were i...