Hemoglobin Adducts and Urinary Metabolites of Arylamines and Nitroarenes

Sabbioni, Gabriele (2017): Hemoglobin Adducts and Urinary Metabolites of Arylamines and Nitroarenes. In: Chemical Research in Toxicology, Bd. 30, Nr. 10: S. 1733-1766

Abstract

Arylamines and nitroarenes are intermediates in the production of pharmaceuticals, dyes, pesticides;and plastics and are important environmental and occupational pollutants. N-Hydroxyarylamines are the toxic,Common intermediates of arylamines and nitroarenes. N-Hydroxyarylamines and their derivatives can form adducts with hemoglobin (Hb-adducts), albumin, DNA, and tissue proteins in a dose-dependent manner. Most of the arylamine Hb-adducts are labile and undergo hydrolysis in vitro, by mild acid or base, to form the arylamines. According to current knowledge of arylamine adduct-formation, the hydrolyzable fraction is derived from the reaction products of the arylnitroso derivatives that yield arylsulfinamide adducts with cysteine. Hb-adducts are markers for the bioavailability of N,-hydroxyarylamines.}Hb-adducts of arylamines and nitroarenes have been used for many biomonitoring studies for over 30 years. Hb-adducts reflect the:exposure history of the last four months. Biornonitoring of urinary metabolites is a less invasive process than blood protein adducts, and urinary metabolites have served as short-lived biomarkers of exposure to these hazardous chemicals. However, in case of intermittent exposure, urinary metabolites may not be detected, and subjects maybe misclassified as nonexposed. Arylamines and nitroarenes and/or their metabolites have been measured in urine, especially to monitor the exposure of workers. This review summarizes the results of human biomonitoring studies involving urinary metabolites and Hb-adducts of arylamines and nitroarenes. In,addition, studies, about the relationship between Hb-adducts and diseases are summarized.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 0893-228X
• Sprache: Englisch