The effect of cycloheximide on butyrylcholinesterase activity in vivo

Arh Hig Rada Toksikol. 2002 Sep;53(3):185-90.

Abstract

The paper describes the catalytic activity of butyrylcholinesterase (BuChE) measured in plasma, liver, white adipose tissue, heart, and brain of rats intraperitoneally administered a single non-lethal dose of cycloheximide (2.0 mg/kg body weight; CHM). The BuChE assay was performed on rats of both sexes either administered CHM or saline (controls), and killed 2, 3, 4, 5, 10 days later. A significant decrease of BuChE catalytic activity was observed in all tested tissues except plasma. In animals of both sexes, the lowest BuChE catalytic activity was found in the liver (2-6%), while it was higher in white adipose tissue, heart, and brain. However, the respective values remained significantly different from controls (33-67%, 49-62%, and 14-71% in males, and 24-82%, 72-86%, and 33-67% in females). Since there was no effect of CHM on BuChE catalytic activity in plasma, the data suggest that CHM inhibits the synthesis of BuChE rather than its active site.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antifungal Agents / pharmacology*
  • Butyrylcholinesterase / metabolism*
  • Cycloheximide / pharmacology*
  • Enzyme Inhibitors / pharmacology*
  • Female
  • Male
  • Rats
  • Rats, Wistar

Substances

  • Antifungal Agents
  • Enzyme Inhibitors
  • Cycloheximide
  • Butyrylcholinesterase