TY - JOUR T1 - EXperimental peptic ulcer AU - McCANN JC Y1 - 1929/10/01 N1 - 10.1001/archsurg.1929.01150040036002 JO - Archives of Surgery SP - 600 EP - 659 VL - 19 IS - 4 N2 - REVIEW OF THE LITERATURE  A consideration of the numerous methods of procedure used in the experimental study of peptic ulcer shows that experimental ulcers may be grouped under a few general headings: (1) resulting from a deficient blood supply to the gastric mucosa; (2) produced by the action of bacteria; (3) resulting from the action of toxic agents; (4) resulting from trophic and glandular disturbances, and (5) produced by the action of the digestive juices.Prior to Virchow's time, experimental studies of the problem had not been carried out. Indeed, a clear recognition of peptic ulcer as a distinct pathologic and clinical entity was not achieved until comparatively late in the progress of medical science. Galen, Celsus and other ancient investigators, presented vague and doubtful references to the ulcer in their descriptions of passia cardiaca, hematemesis and melena. The postmortem examinations of the sixteenth century, stimulated by the general revival SN - 0272-5533 M3 - doi: 10.1001/archsurg.1929.01150040036002 UR - http://dx.doi.org/10.1001/archsurg.1929.01150040036002 ER -