نتایج جستجو برای: lactoperoxidase
تعداد نتایج: 787 فیلتر نتایج به سال:
SCN(-) (thiocyanate) is an important physiological anion involved in innate defense of mucosal surfaces. SCN(-) is oxidized by H(2)O(2), a reaction catalyzed by lactoperoxidase, to produce OSCN(-) (hypothiocyanite), a molecule with antimicrobial activity. Given the importance of the availability of SCN(-) in the airway surface fluid, we studied transepithelial SCN(-) transport in the human bron...
Lactoperoxidase catalyzes the oxidation of thiocyanate (SCN-) and iodide (I-) in presence of hydrogen peroxide in hypothiocyanite (OSCN-) ions and, depending on the pH, in hypoiodite (OI-) ions or in iode (I2). Oxidized SCN- and I- are part of the lactoperoxidase system, which is a natural biological protection in cow milk, and are described as having inhibitory properties against pathogenic hu...
Specific metabolites of estrogens, catechol estrogen-3,4-quinones, if produced in relatively large amounts, can become chemical carcinogens by reacting with DNA to form predominantly depurinating DNA adducts. Estradiol (E2)-3,4-quinone (Q) reacts with DNA to form predominantly the depurinating DNA adducts, 4-hydroxyestradiol (OHE2)-1-N3Ade and 4-OHE 2-1-N7Gua. The depurinating adducts induce mu...
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