Electron Microscopy of Monkey Liver After Exposure of Animals To Pure Oxygen Atmosphere.

Abstract
Summary Livers of monkeys exposed to pure oxygen at 380 mm Hg were examined electron microscopically. Only minimal nonspecific changes were observed; the most significant was an increase in smooth endoplas-mic reticulum at the expense of the rough form and glycogen. The changes, which appeared as early as 24 hours and were gone by 2 weeks, are considered an adaptive response rather than a sign of toxicity.