The liver contains more vitamin A than other organs in the body and under normal circumstances in healthy individuals 90% or more of the total body stores of vitamin A are found in the liver, whereas only 1-3% is in the circulation.' The serum and liver concentrations of vitamin A are not correlated in adequately nourished individuals, and serum levels reflect liver levels only when the liver s...

The aim of this study was to assess the correlation of serum vitamin D with ICU length of stay, mortality rate, length of mechanical ventilation, and incidence of sepsis. We conducted a descriptive analytic study on 793 patients admitted to surgical ICU wards in northwest of Iran from March 2015 to March 2016. Patients were assessed during the ICU stay and the following data were collect...

Vitamin D deficiency is considered as one of the most prevalent healthcare problems in the world. Vitamin D contributes to insulin synthesis and secretion. Deficiency of vitamin D leads to insulin resistance which is the major cause of type 2 diabetes mellitus. We aim to evaluate the effect of treating vitamin D deficiency or insufficiency on serum adiponectin, leptin, and leptin to adiponectin...

Vitamin D deficiency is considered as one of the most prevalent healthcare problems in the world. Vitamin D contributes to insulin synthesis and secretion. Deficiency of vitamin D leads to insulin resistance which is the major cause of type 2 diabetes mellitus. We aim to evaluate the effect of treating vitamin D deficiency or insufficiency on serum adiponectin, leptin, and leptin to adiponectin...

objectives we assessed functional vitamin b12 deficiency in tehranian elderly admitted to elderly research center, university of social welfare and rehabilitation sciences. conclusions the prevalence of b12 deficiency was higher in this study compared to other studies, so more attention and massive efficacious policy should be designed to reduce the deficiency of this vitamin. results cut-off o...

conclusions the vitamin d levels of children aged more than 2 years are lower than those of children aged less than 2 years. thus, prescribing vitamin d-containing supplements in children older than 2 years may be beneficial. results the final study consisted of 286 children, 140 males and 146 females, with a mean age of 4.46 ± 2.82 yr. of these, 218 (76.22%) children, with a mean age of 5.09 ±...

The aim of this study was to assess the correlation of serum vitamin D with ICU length of stay, mortality rate, length of mechanical ventilation, and incidence of sepsis. We conducted a descriptive analytic study on 793 patients admitted to surgical ICU wards in northwest of Iran from March 2015 to March 2016. Patients were assessed during the ICU stay and the following data were collect...

background several studies indicated that there is a high prevalence of vitamin d deficiency in middle east countries. objectives the aim of this study was to determine the prevalence and assess some risk factors of vitamin d deficiency among women attending our clinics in tehran, the capital of iran. patients and methods five hundred and thirty-eight women aged 20-80 years were entered in this...