| pubmed-article:12852483 | pubmed:abstractText | A review of the scientific literature suggested the occurrence of low-level incidences of ventricular septal defect (VSD) and midline defect (MD) in rat fetuses and diaphragmatic hernia (DH), VSD, and MD in rabbit fetuses after maternal exposure to nonsteroidal anti-inflammatory drugs (NSAIDs). Aspirin, an NSAID that irreversibly inhibits cyclooxygenase 1 (COX-1) and COX-2, induces DH, VSD, and MD when administered as one dose during the sensitive periods of development in rats. Unlike aspirin, other NSAIDs, including selective COX-2 inhibitors, reversibly inhibit COX activity. To evaluate whether the dysmorphogenesis observed after maternal NSAID exposure correlates with COX-1 or COX-2 inhibition, a series of compounds with different capacities to inhibit COX-1 and COX-2 were administered to pregnant rats and rabbits during the sensitive period for heart development and midline closure. | lld:pubmed |
