頁籤選單縮合
| 題 名 | Gastrointestinal Uptake of Macromolecules=消化道對大分子之攝取 |
|---|---|
| 作 者 | Gall,D. Grant; | 書刊名 | 中華民國小兒科醫學會雜誌 |
| 卷 期 | 39:1 民87.01-02 |
| 頁 次 | 頁9-11 |
| 專 輯 | 腸道疾病與食物過敏 |
| 分類號 | 361.132 |
| 關鍵詞 | Macromolecular transport; Intestine; Stomach; |
| 語 文 | 英文(English) |
| 英文摘要 | Although the majority of dietary proteins undergo extensive digestion, small, nutritionally insignificant amounts of food proteins appear to cross the gastrointestinal mucosa intact. Experiments in a variety of allergic models has demonstrated that exposure of the gastrointestinal mucosa to the intact allergen leads to an anaphylactoid reaction. To examine the uptake of immunologically intact protein across the gastrointestinal epithelium, the mucosal to serosal movement of bovine serum albumin was measured in stripped gastric and intestinal mucosa mounted in modified Ussing-type chambers. Studies demonstrated that both gastric and intestinal mucosa are capable of actively transporting intact dietary proteins. In the instestine, the transport of intact molecules across the epithelium is a saturable, energy dependant process which utilizes the microtubular network and is regulated by the enteric nervous system. Transport across gastric mucosa is also dependant upon the microtublar network and is energy dependant. |
本系統中英文摘要資訊取自各篇刊載內容。