OBJECTIVE To review the literature about the prevalence of vitamin D deficiency and its consequences in children and adolescents with sickle-cell disease. DATA SOURCES The literature survey was performed through the bibliographic databases Medline; U.S. National Library of Medicine and National Institutes of Health (PubMed); Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs...

backgrounds: vitamin d deficiency is a public health concern even in sunny areas, so we decided to assess the prevalence of vitamin d deficiency and its related factors among university students in shiraz. methods: this cross‑sectional study was carried out on 254 (128 male and 126 female) university students. demographic questionnaires and a questionnaire on exposure to sun light and sun prote...

Oxidative stress is implicated in various human diseases and conditions, such as a neurodegeneration, which is the major symptom of vitamin B12 deficiency, although the underlying disease mechanisms associated with vitamin B12 deficiency are poorly understood. Vitamin B12 deficiency was found to significantly increase cellular H2O2 and NO content in Caenorhabditis elegans and significantly decr...

six- to sixty months old children were studied in sirjan villages, divided into villages with or without a health house (hh). all the 893 children were medically examined and their food intake was assessed, using the 24-hours dietary recall method. ascorbic acid was determined in blood samples of 199 children. the results obtained are as follows: 1; the average vitamin c intake for all the chil...

maternal vitamin d deficiency is one of the major risk factors for neonatal vitamin d deficiency followed by neonatal hypocalcaemia. the aim of this study is to determine the relationship between delayed neonatal hypocalcaemia and maternal vitamin d deficiency. this is a descriptive cross-sectional study. target population of this study included all term and preterm neonates with delayed hypoca...

Hayton, Samantha M., Tony Kriss, Angie Wade, and David P. R. Muller. Effects on neural function of repleting vitamin E–deficient rats with -tocopherol. J Neurophysiol 95: 2553–2559, 2006. First published January 4, 2006; doi:10.1152/jn.00842.2005. A severe and chronic deficiency of vitamin E ( -tocopherol) is associated with a characteristic neurological syndrome with typical “clinical,” neurop...

OBJECTIVE We examined associations between the frequency of fruit and vegetable (F&V) consumption and nutritional deficiencies among Brazilian schoolchildren. DESIGN A cross-sectional, population-based study was performed. A short FFQ was used to assess consumption of fruits and vegetables (F&V) over the past month. The prevalence ratios (PR) and 95 % confidence intervals for stunting, obesit...

vitamin d deficiency is one of the most preventable challenges worldwide. the aim of this study was to determine the prevalence of vitamin d deficiency among female nurses working at children’s medical center hospital in tehran, iran, due to the risk factor of being a notably long period indoors and the fact that their health status may have consequences on the process of patients’ treatment. a...

NEMIA regularly develops in the rhesus monkey (Macaca mulatta) when it is deprived of vitamin E.1 The anemia is accompanied by granulocytosis,’ an increased concentration of bone marrow deoxyribonucleic acid,2 a reduction in the maximal Cr5’ survival time of the erythrocytes,3 a slightly elevated reticulocyte count1 and a prompt reticulocytosis following vitamin E administration. This combinati...