P. Albro, J. Corbett, J. Schroeder
Oct 1, 1984
Citations
0
Influential Citations
19
Citations
Quality indicators
Journal
Chemico-biological interactions
Abstract
Methyl n-amyl ketone (2-heptanone), a reported metabolite of 2-ethylhexanol which in turn is a primary metabolite of plasticizers such as di-(2-ethylhexyl) phthalate, is metabolized in male Fischer 344 rats to CO2, acetate and a variety of compounds that could be either anabolic or catabolic or a combination of the two. A significant percentage of the radioactivity given orally (gavage) as [2-14C]-2 heptanone, at least 10%, was not excreted from the body in 48 h. Radioactivity was incorporated into liver protein in the form of three unidentified products as well as [14C]arginine, and into DNA both as 14C-labeled normal nucleosides (50-75%) and as presently unidentified hydrophobic materials (25-50%). Urea and cholesterol were significantly labeled, indicative of anabolic reutilization of [2-14C]-2-heptanone breakdown products. The 2-heptanone also bound to DNA spontaneously in vitro, to the extent of 400 pmol/mg DNA.