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Effects of prenatal procarbazine administration on intrauterine development in rats
F A Malek1, K U Möritz, J Fanghänel
1Department of Anatomy, Ernst Moritz Arndt University, Friedrich-Loeffler-Strasse 23c, D-17487 Greifswald, Germany.
Insights
Prenatal exposure to procarbazine (PCZ) significantly harmed rat fetal development, reducing live fetuses and increasing resorptions. However, PCZ did not demonstrate teratogenic effects in this study.
Area of Science:
- Toxicology
- Developmental Biology
- Pharmacology
Background:
- Prenatal exposure to certain chemicals can impact fetal development.
- Procarbazine (PCZ) is a chemotherapy agent with potential developmental toxicity concerns.
Purpose of the Study:
- To investigate the effects of prenatal procarbazine (PCZ) administration on intrauterine development in rat fetuses.
- To assess fetal toxicity and teratogenic potential of PCZ during gestation.
Main Methods:
- Gravid rats were administered PCZ (25 mg/kg or 50 mg/kg) or saline on day 14 of gestation.
- Fetal development was assessed on day 20, including counts of live fetuses, dead fetuses, and resorptions.
- Measurements included fetal body weight, occipito-coccygeal length (OCL), tail length (TL), and placental parameters. External and sectional examinations were performed.
Main Results:
- Both PCZ doses significantly reduced the number of live fetuses and increased resorptions.
- PCZ administration led to a significant decrease in mean fetal body weight, OCL, and TL.
- Placental weight, diameter, and the number of dead fetuses were not significantly different from controls. No external or sectional abnormalities were observed.
Conclusions:
- Prenatal PCZ exposure causes significant fetal toxicity in rats at the tested doses.
- PCZ did not exhibit teratological properties in this experimental model.
- These findings highlight the developmental risks associated with PCZ during pregnancy.
Abstract:
The effects of prenatal procarbazine (PCZ) administration on the intrauterine development of rat fetuses were investigated. Gravid rats were treated on day 14 of gestation (GD14) with 25 mg or 50 mg/kg body weight PCZ via stomach tube. Controls received normal saline in the same dosis and manner. On GD20, all fetuses were collected by caesarian section. Live and dead fetuses as well as resorptions were counted. In the live fetuses, the following investigations were conducted: measurement of body weight, occipito-coccygeal-lenght (OCL), tail length (TL), placental weight and diameter, external macroscopic and binocular microscopic examination, and sectional analysis of the animals using the razorblade sectioning technique. Both PCZ doses caused a significant reduction in the number of live fetuses and a significant increase in resorptions. Mean body weight in PCZ groups was antidromic affected. OCL and TL were significantly depressed. Placental weight and diameter as well as number of dead fetuses were comparable to those of controls. External and sectional investigations revealed no PCZ-related deviations. In the light of our findings we conclude that PCZ in the doses used in this experimental study significantly affects the intrauterine development in rats in terms of fetal toxicity but displays no teratological properties.