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  • Title: [Blood concentrations of immunoglobulins in children with vitamin A deficiency].
    Author: Arredondo-García JL, Martín Guerra-Infante F, Santos-Argumedo L.
    Journal: Gac Med Mex; 1990; 126(5):375-81; discussion 382-3. PubMed ID: 2103544.
    Abstract:
    The object of this study is to measure the influence that vitamin A has upon seric concentrations of different isotypes of immunoglobulins (IgM, IgG, IgA) in children with a normal nutritional state or a slightly subnormal one, as well as that of patients with lower respiratory infections. Fifty two children were studied over a period of 24 months. Twenty eight of these were from an orphanage, while 24 were hospitalized, due to a low respiratory infection. The patients with lower respiratory infection showed normal average concentration of vitamin A, but under that of the orphanage (p less than 0.025). It was also observed that malnutrition influences the seric concentrations of immunoglobulins, which were higher in normal individuals; never the less, when this group show deficiency of vitamin A the serum concentration of IgM became lower in the orphanage, malnutrition children. In a similar way, a lowering of IgG was observed in patients with lower respiratory infections and vitamin A deficiency, while no alterations were found in the serum concentration of IgG in any of the groups studied with vitamin deficiency. It is concluded that the concentrations of vitamin A and the nutritional state modify serum values of IgM and IgG.
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