Pepsin in gastric juice. Delhoeugne (Deut. Arch, f. klin. Med., Bd. 157, H. 5-6)

On the assumption that the pepsin content of gastric juice corresponds to the acidity of the latter, clinicians usually do not examine pepsin, but are satisfied with determining the acidity of the juice. Meanwhile, research has convinced the author that there is no direct correlation between pepsin and acidity in the juice. Usually the amount of pepsin depends on the nature of the food: in particular, it increases with a purely protein food.