TY - CHAP M1 - Book, Section TI - Toxic Responses of the Liver A1 - Jaeschke, Hartmut A2 - Klaassen, Curtis D. A2 - Watkins III, John B. Y1 - 2015 N1 - T2 - Casarett & Doull’s Essentials of Toxicology, 3e AB - The liver’s strategic location between intestinal tract and the rest of the body facilitates its maintenance of metabolic homeostasis in the body.The liver extracts ingested nutrients, vitamins, metals, drugs, environmental toxicants, and waste products of bacteria from the blood for catabolism, storage, and/or excretion into bile.Formation of bile is essential for uptake of lipid nutrients from the small intestine, protection of the small intestine from oxidative insults, and excretion of endogenous and xenobiotic compounds.Cholestasis is either a decrease in the volume of bile formed or an impaired secretion of specific solutes into bile, which results in elevated serum levels of bile salts and bilirubin.Hepatocytes have a rich supply of phase I enzymes that often convert xenobiotics to reactive electrophilic metabolites and of phase II enzymes that add a polar group to a molecule and thereby enhance its removal from the body. The balance between phase I and phase II reactions determines whether a reactive metabolite will initiate liver cell injury or be safely detoxified. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/18 UR - accessbiomedicalscience.mhmedical.com/content.aspx?aid=1113950193 ER -