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  • Title: Celosomy is associated with prenatal exposure to cyclooxygenase inhibitors.
    Author: Burdan F, Szumilo J, Dudka J, Korobowicz A, Klepacz R.
    Journal: Pharmacol Res; 2006 Mar; 53(3):287-92. PubMed ID: 16460959.
    Abstract:
    Celosomy is a term used for a group of congenital anomalies characterized by opening of the somatic wall with evisceration. The most common types of celosomy are gastroschisis and omphalocele. They have been associated with maternal age, cigarette smoking, environmental pollution, as well as prenatal exposure to vasoconstrictors and recreational drugs. The aim of this study was to evaluate the effect of prenatal exposure to various selective and non-selective cyclooxygenase-2 (COX-2) inhibitors on the abdominal wall defects in rat. A retrospective statistical analysis was performed on the basis of data collected in our laboratory in the years 1997-2004, during different teratological studies with COX-inhibitors (aspirin, DFU, DuP-697, ibuprofen, paracetamol, piroxicam, propyphenazone, tolmetin). Out of 6744 live born fetuses celosomy was revealed only in four animals exposed to different non-selective COX inhibitors. A single case of gastroschisis was also found in a rat exposed to the selective COX-2 inhibitor. The fetal body weight was significantly lower in COX-exposed group of fetuses when compared with untreated control. It was also significantly decreased in non-malformed fetuses prenatally exposed to COX inhibitors when compared with untreated control. The fetal body weight and length were lower in fetuses born with gastroschisis than with omphalocele. However, when animals with both anomalies were pooled in one group the mean fetal body weight was marginally lower (p = 0.0523) when compared with non-malformed group, while no statistically significant differences were found for fetal length. The pooled statistical analysis done for the concurrent and our own historic data showed that only aspirin statistically increased the risk of abdominal wall defects in rat fetuses. The expected ratio for aspirin is 56.41 per 10,000 offsprings (p < 0.05), which is over 10-times higher than ratio for all non-selective COX inhibitors, including aspirin (6.01/10,000; p < 0.05). No differences were found for selective COX-2 inhibitors. It could be stressed that aspirin, unlike other non-selective and selective COX-2 inhibitors increases the risk of the abdominal wall defects, which are observed more often in growth-retarded fetuses.
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