Maria Greabu *, R. Olinescu *, D. Crocnan *, B. Voiculescu **
*Dr. Biochim. R. Olinescu, Conf. Dr. Maria Greabu, Dr. Biofiz. D. Crocnan, Departamentul de Biochimie, Universitatea de Medicină și Farmacie “Carol Davila”
**Asist. Dr. B. Voiculescu Departamentul de Anatomie, Universitatea de Medicină și Farmacie “Carol Davila”
Abstract
As Commoner said ”The human being of XX-th century contain, Sr-90 in bones, 1-131 in Thyroid Gland, DDT in lipoproteins, ascorbate in lungs but live longer and better than his ancestors”. The human organism, like others forms of life has unknown resources, of complex biochemical and immunological mechanisms that permit its adaptation and resistance to different noxes. The human organism adapts to these noxes by activating its protective systems that are able to gave a remacable resistance. As a matter of fact that the oxygen activation is un unstable and un ubiquitous process its acceptance as a basic element of life developed only after the elaboration on the evolution scale of some antioxidant protective systems. A great variety and complexity characterize these.