Background/aim: The retinol level and retinol delivery to the placenta may vary depending on various factors involving the mother and newborn. The present study evaluates the factors affecting retinol levels in newborns and the transplacental retinol passage in preterm newborns. Materials and...

Background and objective: Retinol is a precursor of vitamin A, which is metabolized and maintained in the liver and is involved in the pathogenesis of the nonalcoholic fatty liver disease (NAFLD) and liver fibrosis. The relationship between NAFLD and liver fibrosis with serum retinol levels remains ...

Background: There is a sex-dependent difference in blood retinol and RBP concentrations, and plasma RBP is associated with insulin resistance. Objectives: We aimed to clarify sex-dependent variations in body concentrations of retinol and RBPs and their association with sex hormones in rats....

Background: Suboptimal plasma retinol concentrations have been documented in US children with sickle cell disease (SCD) hemoglobin SS type (SCD-HbSS), but little is known about vitamin A kinetics and stores in SCD. Objectives: The objectives were to quantify vitamin A total body stores (TBS) and...

Retinol, the main active form of vitamin A, plays a role in maintaining vision, immune function, growth, and development. It also inhibits tumor growth and alleviates anemia. Here, we developed a Saccharomyces cerevisiae strain capable of high retinol production. Firstly, the de novo synthesis...

Objective: To assess the reliability and validity of dried blood spot(DBS) in the diagnosis of marginal vitamin A deficiency(MVAD) in preschoolers, in order to provide reference for scientifically assessing vitamin A nutritional status. Methods: A total of 130 children aged 2 to 7 years were...

Background: To minimize both cost and perturbations to the vitamin A system, investigators limit the amount of stable isotope administered when estimating vitamin A total body stores (TBS) by retinol isotope dilution (RID). Objectives: We hypothesized that reasonable increases in the mass of stable ...

The isomerisation index, or degree of retinol isomerisation (DRI), i.e. the percentage ratio between 13-cis and all-trans retinol, could be used as process and product index in dairy products. To better investigate microbial influence on retinol isomerisation, retinol isomerisation and microbial...

Background: Vitamin A deficiency (VAD) is common in populations with limited dietary diversity and access to vitamin A-rich foods. Objectives: This analysis aimed to determine the impact of supplementing children's diets with 1 egg/d on the concentration of plasma retinol and RBP and the prevalence ...

This experiment was conducted to study the effects of different dietary levels of vitamin A on performance, egg quality, the relationship between the presence form, form proportion and total vitamin A content in eggs and dietary vitamin A of laying hens. A total of 600 Hy-Line brown laying hens...