摘要
The gastrointestinal tract is lined by a simple epithelium that undergoes constant renewal involving cell division, differentiation and cell death. In addition, the epithelial lining separates the hostile processes of digestion and absorption that occur in the intestinal lumen from the aseptic environment of the internal milieu by defensive mechanisms that protect the epithelium from being breached. Central to these defensive processes is the synthesis of heme and its catabolism by heme oxygenase （HO）. Dietary heme is also an important source of iron for the body which is taken up intact by the enterocyte. This review describes the recent literature on the diverse properties of heme/HO in the intestine tract. The roles of heme/HO in the regulation of the cell cycle/ apoptosis, detoxification of xenobiotics, oxidative stress, inflammation, development of colon cancer, hemeiron absorption and intestinal motility are specifically examined.
胃肠道被经历包含两极分裂，区别和细胞死亡的经常的更新的一张单层上皮衬里。另外，上皮的衬里分开由保护上皮免受被突破的伤害的防御机制从内部周围的无菌的环境发生在肠的腔的消化和吸收的敌对过程。对这些防御过程中央是合成他我和它的分解代谢由他我氧合酶(惊讶) 。饮食他我也是为被收起的身体的铁的重要来源由 enterocyte 未经触动。这评论在肠道在 heme/HO 的多样的性质上描述最近的文学。在房间 cycle/apoptosis， xenobiotics 的 detoxification，氧化压力，发炎，结肠癌的发展， heme 铁吸收和肠的活动性的规定的 heme/HO 的角色明确地被检验。
