Description
Vitamin A food supplement. The biological activity of vitamin A is attributable both to retinol and analogues and to various carotenoids which possess pro-vitamin activity. The different provitamin forms are absorbed, transformed into retinol and esterased at the intestinal mucosa. Retinol esters (especially retinol palmitate) are stored in the liver, from where they will be released into circulation, as needed, after hydrolysis to free retinol.
Retinol circulates in the plasma bound to a transporter protein (RBP: Retinol Binding Protein) from which it is then released at the level of the tissues that use it. Plasma levels below 20 mg/dl are an indication of depletion of liver reserves. Vitamin A also plays a role in the process of cellular differentiation, and is therefore very important for the correct development of the individual and his reproductive activity, for the immune response, for the integrity of his tissue system. A vitamin A deficiency can therefore cause difficulties in the development and growth process.

Nutritional characteristics

Average values ​​for 1 drop
Vitamin A	100 IU

storage
Store at room temperature.
Validity with intact packaging: 36 months.

Format
15 ml bottle.

Bibliography
1. Bancalari E, Claure N, Sosenko IR. Bronchopulmonary dysplasia: changes in pathogenesis, epidemiology and definition. Semin Perinatol 2003;B:63-71.
2. Chabra S, Arnold JD, Leslie Gl, et al. Vitamin A status in preterm newborns with and without chronic lung disease. J Paediatr Child Health 1994;30:432-5.
3. Chan V, Greenough A, Cheeseman P, et al. Vitamin A levels at birth of high risk preterm infants. J Perinatal Med 1993;21:147-51.
4. Banati M. Supplementation and plasma levels of vitamin A in premature newborns at risk for chronic lung disease. Dev Pharmacol Ther 1993;20: 144-51.
5. Rao NA, Wu GS. Oxygen free radicals and retinopathy of prematurity. Br J Ophthalmol 1996;80:387.