| Method |
Researchers' previous finding of a glutathione (GSH) deficiency in aging or senescent mice suggested that a concomitant decrease in detoxification capacity also may occur. To test this, mice at different biological stages of the life span (growth, maturity, aging or senescence) were injected with various doses of acetaminophen (APAP), and GSH depletion and recovery rates were determined. At intervals for 24 hr, samples of blood and other tissues were obtained, processed, and analyzed for reduced GSH, glutathione disulfide (GSSG), cysteine, and cystine using HPLC with dual electrochemical detection. |