Oddi in 1894 isolated from the amyloid liver a substance which Schmiedeberg had previously obtained from cartilage and named " chondroitinic-sulphuric acid " (Chondroitinschwefelsaure).
Oddi does not regard it as the essential constituent of amyloid, chiefly because the colour reactions are forthcoming in the residuum after the substance has been removed, while the substance itself does not give these reactions.
162; Oddi, " Nature of Amyloid," Arch.
The sphincter of Oddi surrounds the ampulla and prevents reflux of duodenal contents into the pancreatic duct.
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