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Rev. chil. nutr ; 35(2): 101-108, jun. 2008. tab
Article in Spanish | LILACS | ID: lil-517468

ABSTRACT

La anemia es el desorden nutricional de mayor prevalencia en el mundo. Estudios sobre anemia por depleción de hierro (ADFe) y citocinas son escasos en humanos. Objetivo Analizar en adolescentes de sexo femenino con ADFe las concentraciones séricas de IL-10 e IFN-gamma. Métodos: Se estudiaron 56 adolescentes (16,1 +/- 1,1 años). Se consideró anemia a una Hb<120 g/L; depleción de hierro (DFe)=ferritina<12 micrones g/L; riesgo de DFe=12-20 micrones g/L y normal>20 micrones g/L. IL-10 e IFN-gamma fueron determinados en suero por ELISA (pg/mL). Los datos fueron analizados con SAS,p<0,05. Resultados: La prevalencia de anemia fue 39,29 por ciento; DFe 33,93 por ciento; Riesgo de DFe=23,22 por ciento y ferritina normal=42,85 por ciento. Las adolescentes anémicas mostraron incremento del IFN-gamma sérico respecto a las no anémicas (NA) p<0,0001. La correlación de Pearson mostró una relación negativa significativa entre Hemoglobina-IFN-gamma y ferritina sérica-IFN-gamma. Discusión: Anemia, DFe y ADFe asociado con el incremento en los niveles séricos de FN-gamma pudieran deberse a efectos inmunoreguladores de esta citocina en la homeostasis del metabolismo del hierro.


Anemia is the most prevalent nutritional disorders in the world. There are only a few studies on the relationship between anemia and cytokines in humans. Objective: To analyze serum concentration of IL-10 and gamma-IFN in anemic female adolescents with depleted reserves of iron (AFeD). Methods: Fifty-six adolescents (16.1 +/-1.1 years old) were analyzed. Anemia was considered when Hb<120g/L; iron depleted ferritin (FeD) < 12 micron g/L; FeD risk 12-20 micron g/L and normal >20 micron g/l. Cytokines were measured in serum by ELISA (pg/mL). The data was analyzed with the SAS program, p<0.05. Results: The prevalence of anemia was 39.29 percent. FeD=33.93 percent; FeD risk=23.22 percent, and normal serum ferritin=42.85 percent. Anemic adolescents shown increased gamma-IFN serum leveis compared to the non anemic (NA) group. Pearson correlation of Hb with gamma-IFN serum leveis and ferritin with gamma-IFN serum leveis were significant. Discussion: Anemia, FeD and AFeD were associated with high serum leveis of gamma-IFN; this could be due to immunoregulator effects of this cytokine on iron metabolism homeostasis. However, more studies are needed to clarify this relationship.


Subject(s)
Humans , Female , Adolescent , Anemia, Iron-Deficiency/epidemiology , Anemia, Iron-Deficiency/blood , Interferon-gamma/blood , /blood , Analysis of Variance , Anthropometry , Anemia, Iron-Deficiency/metabolism , Cross-Sectional Studies , Enzyme-Linked Immunosorbent Assay , Ferritins/blood , Iron/metabolism , Interferon-gamma/metabolism , /metabolism , Prevalence , Risk , Venezuela/epidemiology
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