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[A study for effects on pre- and postnatal development, including maternal function in rats treated subcutaneously
Y Katsumata1, K Inoue, K Shimamura
1Gotenba Laboratory, BOZO Research Center, Inc., Shizuoka, Japan.
The Journal of Toxicological Sciences
|June 9, 1998
Summary
Magnesium sulfate exposure during gestation in rats showed maternal effects at higher doses. Fetal development was impacted at 1000 mg/kg, but no long-term reproductive issues were observed.
Area of Science:
- Toxicology
- Developmental Biology
- Pharmacology
Context:
- Maternal exposure to magnesium sulfate during critical gestation periods.
- Assessment of toxicological effects on pregnant dams and their offspring (F1 generation).
Purpose:
- To determine the non-toxic dose levels of magnesium sulfate for maternal and developmental toxicity in rats.
- To evaluate the effects of prenatal magnesium sulfate administration on dam health and F1 animal development.
Summary:
- Maternal rats receiving magnesium sulfate (250-1000 mg/kg) showed dose-dependent effects including reduced food intake and locomotion at higher doses.
- Offspring (F1) exposed to 1000 mg/kg magnesium sulfate exhibited lower birth weight, delayed differentiation, and reversible rib abnormalities.
- No adverse effects on delivery, lactation, viability, or reproductive capacity were noted for dams or F1 animals.
Impact:
- Establishes specific non-toxic dose levels for magnesium sulfate during gestation in this rat model.
- Provides crucial data for risk assessment of magnesium sulfate use during pregnancy.
- Informs future research on the developmental toxicology of magnesium sulfate.