| Comments |
P.74 2nd paragraph:"It is therefore remarkable that despite the prima facie inauspicious mixture of harmful secretions and bacteria, the normal GI mucosa retains a healthy state of cell renewal. To counteract the hostile
microenvironment, the GI epithelia react by speeding cell exfoliation (the GI mucosa has a turnover time of two to three days), by increasing peristalsis, by eliminating bacteria through secretion of plasma cell-immunoglubulins and by increasing production of natural antibacterial compounds, such as defensin-5 and lysozyme." |