The technique allowed the PTI to be discharged in exclusive breastfeeding at a corrected gestational age corresponding to that of healthy term newborns.

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Presentation schedule is subject to change. For the most up-to-date information, visit www.entannualmeeting.org. Stimulatory G (Gs) proteins were activated to evaluate mechanisms. Intracellular cyclic adenosine monophosphate (cAMP) levels were measured by enzyme-linked immunosorbent assay, and fibroblast cytoskeletal structures were visualized with immunocytochemistry.Results: PGE2 significantly reduced the migration of nasal fibroblasts. Agonists selective for the EP2 and EP4 receptors significantly reduced the nasal fibroblast migration. Antagonists of the EP2 and EP4 receptors inhibited the effect of PGE2 on nasal fibroblast migration. Activation of Gs protein and adenyl cyclase reduced nasal fibroblast migration.