31.   In addition platelet activating factor was also found, although to a lesser extent in normal, uninflamed mucosa.

32.   The possibility that intestinal epithelial cells may produce platelet activating factor has been suggested by Kald et al.

33.   Platelet activating factor, first described as platelet activating factor and identified as, is a lipid mediator that participates in hypersensitivity and inflammatory reactions.

34.   Platelet activating factor causes gastrointestinal mucosal injury and ischemic bowel necrosis.

35.   Recently we described the presence of platelet activating factor in the gastric juice in disease conditions in humans and in the physiological condition in the cat.

36.   In the cat, histamine stimulates both gastric acid and platelet activating factor in vivo.

37.   Assay for platelet activating factor -- Washed rabbit platelets were prepared as previously described.

38.   Aggregating activity of the samples was measured over the linear portion of the calibration curve obtained with synthetic platelet activating factor.

39.   Assay for lyso platelet activating factor -- Lyso platelet activating factor was measured after chemical acetylation into platelet activating factor.