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International Journal of Morphology

On-line version ISSN 0717-9502


TERUEL, M; GARCIA, V  and  CATALANO, R. Effects of Albendazole Sulphoxide on Embryonic, Foetal and Placental Parameters in Wistar Rats. Int. J. Morphol. [online]. 2009, vol.27, n.4, pp.1147-1153. ISSN 0717-9502.

The aim of this work was to evaluate the effect of albendazole sulphoxide (ABZSO), administered to Wistar rats during pregnancy on embryonic, foetal and placental parameters. A colpocytological control was performed daily and detection of spermatozoa in the vaginal smear was considered as day 0 of pregnancy. For the preimplantational study, ABZSO (10 mg/kg) was orally administered at day 2 of pregnancy; at day 4 the embryos were collected. For the postimplantational study, ABZSO (10 mg/kg) was orally administered by gavages at day 2, 6 or 10 of pregnancy (G2, G6 and G10 Groups respectively); the control group was administered the same volume of carboxymethylcellulose vehicle used to prepare the drug suspension. Fetuses were obtained from pregnant rats sacrificed on day 20 of gestation. Maternal body weight gains were analyzed using the one-way ANOVA test. Embryonic and foetal variables were analized on a per litter basis by the Kruskal-Wallis test. Skeletal anomalies were analyzed using an X2 test. The significance level accepted was established at P<0.05. In the preimplantational analysis, the cleavage rate was lower in the experimental group (P<0.05). In the postimplantational analysis there were no differences in the net weight increase among females of the different groups (P>0.05). The number of fetuses and the foetal vesicles weight were lower in the G10 group (P<0.05). This group showed the highest percentage of resorptions (P<0.05) and fetuses morphologically abnormal. An increase in the number of bones affected in fetuses of G6 and G10 groups was observed. The most common malformations were at vertebral, costal and head level. Weights and placental diameters were lower in the G10 group (P<0.05). We conclude that ABZSO at the dose used in this study affects the cleavage rate in preimplantational embryo development, without interrupting pregnancy. Furthermore; the developmental toxicity is related to day of administration.

Keywords : Albendazole Sulphoxide; Gestation; Toxicity; Wistar Rats.

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