![]() Some lactic acid bacteria (LAB) can accumulate and bio-transform selenite (toxic) into Se-nanoparticles (SeNPs) and Se-amino acids (non-toxic). In several European countries as well as in Argentina, Se intake is below the recommended dietary Intake (RDI). Se deficiency in humans is associated with viral infections, thyroid dysfunction, different types of cancer, and aging. Selenium (Se) is an essential micronutrient for the majority of living organisms, and it has been identified as selenocysteine in the active site of several selenoproteins such as glutathione peroxidase, thioredoxin reductase, and deiodinases. 2Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, España. ![]() 1Centro de Referencia para Lactobacilos (CERELA-CONICET), Tucumán, Argentina. ![]() Fernando Gabriel Martínez 1,2, Gustavo Moreno-Martin 2, Micaela Pescuma 1, Yolanda Madrid-Albarrán 2 and Fernanda Mozzi 1 *
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