Gudmand-Höyer E, Asp N G, Möllmann K M
Scand J Gastroenterol. 1975;10(6):653-6.
Maltase, sucrase, and lactase were measured at pH 4 and pH 6 in normal and intestinalized gastric mucosa. In the normal mucosa the low activities of maltase and lactase seemed to be entirely due to lysosomal enzymes with acid pH-optimum. In intestinal metaplasia, brush border maltase and sucrase, but not lactase, appeared. On the other hand, there was a significant increase in lysosomal lactase (beta-galactosidase) activity.
在正常胃黏膜和肠化生胃黏膜中，于pH 4和pH 6条件下测定了麦芽糖酶、蔗糖酶和乳糖酶的活性。在正常黏膜中，麦芽糖酶和乳糖酶的低活性似乎完全归因于具有酸性最适pH的溶酶体酶。在肠化生中，出现了刷状缘麦芽糖酶和蔗糖酶，但未出现乳糖酶。另一方面，溶酶体乳糖酶（β-半乳糖苷酶）活性显著增加。
