[Physiologic regeneration of jejunal epithelium following bilateral subdiaphragmatic vagotomy in rats]

Seven days after vagotomy in rats there was an increase of the mitotic activity of the epithelium of the small intestine; this index was about 1.5 greater in the experimental ats in comparison with control animals. Daily rhythm of the mitotic activity was constant under these conditions, but the amplitude of daily fluctuations was levelled. Vagotomy failed to alter the stable regimen of renovation of the cell population of the "crypt-villus" system.