Vitamin A deficiency in children

Vitamin A deficiency is a systemic disease mainly caused by eye and skin lesions caused by a lack of vitamin A in the body. Patients are mainly infants and young children, often coexisting with malnutrition, accompanied by protein-energy malnutrition, etc. . Vitamin A has many important functions in the body. It plays an important role in the function of the retina, it is obviously necessary for the growth and differentiation of epithelial tissues, and it is also required for bone growth, reproduction and embryo development. It also has a stabilizing effect on various cell membranes. Thereby regulating the permeability of the membrane. Vitamin A's function is achieved through different molecular forms. What plays a role in vision is retinal. Retinol is responsible for the reproductive process, while retinoic acid or a metabolite is important for other functions.

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