... secretion. PG promote the production of gastric mucus and reduce the formation of gastric acid (p. 160).Menstruation. PGF2!is believed tobe responsible for the ischemic necrosis of the endometrium ... the acetyl residue. Hence, the duration of the effect depends on the rate of enzyme resynthesis. Further-more, salicylate may contribute to the effect. ASA irritates the gastric mucosa(direct ... °C bymeans of a heart-lung machine.In higher doses, ethanol and bar-biturates also depress the thermoregu-latory center (B1), thereby permittingcooling of the body to the point of death,given...