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Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety
Calciferol calcidiol cholecalciferol
2016/5/31
For adults, the 5-mg (200 IU) vitamin D
recommended dietary allowance may prevent osteomalacia in
the absence of sunlight, but more is needed to help prevent
osteoporosis and secondary hyperparathy...
The Relationship between Serum Leptin, 25-hydroxyvitamin D3, and Body Composition
leptin vitamin D, BMI body composition epidemiology
2014/11/7
The effects of seasonal variation of 25-hydroxyvitamin D and fat mass on a diagnosis of vitamin D sufficiency1,2,3
Vitamin D vitamin D deficiency insufficiency seasonal variation
2009/4/20
Background: The effect of season on vitamin D status is often overlooked in studies of optimal vitamin D concentrations and in clinical practice.
Risk factors for low serum 25-hydroxyvitamin D concentrations in otherwise healthy children and adolescents
Vitamin D 25-hydroxyvitamin D children adolescents 25-dihydroxyvitamin D parathyroid hormone
2008/12/17
Background:Serum 25-hydroxyvitamin D [25(OH)D] concentrations serve as a biomarker for vitamin D stores. Prior studies have not examined the risk factors for low vitamin D concentrations in a multieth...
Serum 25-hydroxyvitamin D in a West African population of tuberculosis patients and unmatched healthy controls
Hypovitaminosis D 25-hydroxyvitamin D tuberculosis Guinea-Bissau
2008/12/17
Background: Little is known regarding vitamin D deficiency (VDD) in African populations and in tuberculosis (TB) patients. VDD has been shown to be associated with TB.Objective: We aimed to compare th...
A prospective analysis of plasma 25-hydroxyvitamin D concentrations in white and black prepubertal females in the southeastern United States
Plasma 25-hydroxyvitamin D prepubertal females Georgia race season
2008/12/12
Background: Little is known regarding changes in vitamin D status among children living in the southern United States and whether these changes are race-dependent.Objectives: The aims were to prospect...
Cholecalciferol significantly increases 25-hydroxyvitamin D concentrations in adults with cystic fibrosis1,2
25-Hydroxyvitamin D cystic fibrosis supplementation
2008/12/12
Background: Vitamin D deficiency is increasingly being recognized and treated in patients with cystic fibrosis, although the treatment guidelines are not proven and the effectiveness of vitamin D prep...
Serum 25-hydroxyvitamin D status and cardiovascular outcomes in chronic peritoneal dialysis patients: a 3-y prospective cohort study
kidney disease peritoneal dialysis patients
2016/12/30
Serum 25(OH)D was deficient or insufficient (ie, <75nmol/L) in 87% of the patients. Adjusting for clinical and demographic factors, every 1-unit increase in log-transformed serum 25(OH)D was associate...
Association of low 25-hydroxyvitamin D concentrations with elevated parathyroid hormone concentrations and low cortical bone density in early pubertal and prepubertal Finnish girls
cortical bone density biomarkers prepubertal girls
2017/1/4
We studied the associations of serum 25(OH)D and intact PTH (iPTH) with bone mineral content (BMC) and bone mineral density (BMD) at different bone sites and the relation between serum 25(OH)D and iPT...
Prevalence and significance of low 25-hydroxyvitamin D concentrations in healthy subjects in Delhi
25-Hydroxyvitamin D 25(OH)D calcium homeostasis South Asians pregnancy
2016/6/7
Background: Despite abundant sunlight, rickets and osteomalacia
are prevalent in South Asian countries. The cause of this paradox
is not clear.
Objective: The objective was to assess 25-hydroxyvita...
Serum 25-hydroxyvitamin D concentrations and related dietary factors in peri- and postmenopausal Japanese women
Epidemiology fish consumption 25-hydroxyvitamin D 25(OH)D Japan parathyroid hormone winter, elderly women
2016/6/7
Background: Few studies of vitamin D nutrition in Asian populations
have been conducted.
Objective: The objective was to assess 25-hydroxyvitamin D
[25(OH)D] concentrations in healthy elderly Japan...