Raul F, Noriega R, Nsi-Emvo E, Doffoel M, Grenier J F
Gut. 1983 Jul;24(7):648-52. doi: 10.1136/gut.24.7.648.
In the adult rat, starvation during 48 hours led to a three fold increase of lactase specific activity in the intestinal brush border membranes. Thyroxine injection during the three days before death (0.5 micrograms/g daily) inhibited the stimulation of lactase activity induced by starvation without modifying sucrase activity whereas hydrocortisone injections (25 micrograms/g daily) or thyroidectomy did not modify the stimulatory effect of starvation on lactase activity. These results suggests a specific hormonal control of intestinal lactase activity in the rat.
在成年大鼠中,48小时的饥饿导致肠刷状缘膜中乳糖酶比活性增加了三倍。在死亡前三天每天注射甲状腺素(0.5微克/克)可抑制饥饿诱导的乳糖酶活性刺激,而不改变蔗糖酶活性,而每天注射氢化可的松(25微克/克)或甲状腺切除则不会改变饥饿对乳糖酶活性的刺激作用。这些结果表明大鼠肠道乳糖酶活性存在特定的激素调控。