The experiments in vitro: PAP was added intothe cultured middle ear epithelial cells of the guinea pigs, and the mucousglycoprotein (MOP) in the supernatant were measured by the radioactivityto describe the effects of PAF on the MGP secretion.

• 在体外实验中将PAF加入到培养的中耳上皮细胞中，测定了PAF对培养的中耳上皮细胞中粘性糖蛋白（MGP）分泌量的影响。