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The incubation of 1-O-clofibryl glucuronide (1-O-CAG), a metabolite of clofibrate, with glutathione (GSH) resulted in the appearance of a new peak when analyzed by HPLC. The use of HPLC coupled to electrospray-MS permitted the identification of the peak as S-(p-chlorophenoxy-2-methylpropanoyl)glutathione (CA-SG), formed by nucleophilic displacement of the(More)
Many chemical substances of natural or anthropogenic origin are suspected or known to be endocrine disruptors, which can influence the endocrine system of life. This observation has led to increased interest on the part of the public and the media, as well as to a steep rise of research activities in the scientific community. New papers and results are(More)
Distributed hydrogen for the hydrogen economy will require new catalysts and processes. Existing large-scale hydrogen plants can not simply be reduced in size to meet the economic, safety, and frequent duty cycle requirements for applications for fuel cells, hydrogen fueling stations, and industrial uses such as hydrogenation reactions, gas turbine cooling,(More)
Rat hepatic microsomes catalyzed the formation of two distinct glutathione conjugates of bilirubin dimethylester (DMB). The two conjugates were identical to those isolated from the bile of Gunn rats infused with DMB. The microsomal reaction was dependent on NADPH, oxygen and glutathione and was inhibited by nitrogen and the cytochrome P450 inhibitors(More)
Microsomal glutathione S-transferase (mGST) was purified to homogeneity from male Sprague-Dawley rat liver, as determined by SDS-PAGE. Removal of Triton X-100 and further separation by reversed phase HPLC revealed two proteins, mGST 1 and mGST 2, in a 1:3 ratio. Analysis of mGST 1 and mGST 2 by electrospray ionization mass spectrometry determined their(More)
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