[Determination of secretion of ABO group antigens using a immunohistochemical method]

In the assessment of secretor status in deceased subjects in recent years efforts focused on immunohistological examination of those orangs the secretions and epithelial cells of which contain group substances in secretors. By means of the immunofluorescent method group substances A and B were estimated in the secretion of mucinous cells of the sublingual salivary glands of the trachea and Becher cells of the trachea. In 19 of 20 examined subjects in the above glands activity was detected suggesting secretor status, corresponding to the blood group. Using the saturation method, concurrently with same results, group substances A a B were detected in bile.