Smirnov K V
Vestn Akad Med Nauk SSSR. 1989(1):85-9.
The article presents an evaluation of the state of the digestive system in astronauts during short-term and long-term space flights. After short-term (7- or 8-day) flights, there was a transitory activation of gastrointestinal enzyme systems. After prolonged space flights, there was an increase in gastric acidity and pepsin excretion, as well as pancreatic and intestinal malfunctions. In summary, there is a transition of the digestive system to a new level of functioning.
本文介绍了对宇航员在短期和长期太空飞行期间消化系统状态的评估。短期（7天或8天）飞行后，胃肠酶系统出现短暂激活。长期太空飞行后，胃酸度和胃蛋白酶分泌增加，同时胰腺和肠道出现功能障碍。总之，消化系统正过渡到一个新的功能水平。
