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Lipid peroxidation in brain tissue of newborn rats derived from two models of disturbed pregnancy
1Institute of Pharmacology and Toxicology, Friedrich Schiller University, Jena, Germany.
Two models of disturbed pregnancy, both causing decreased fetal body mass, were used: the endotoxin-model (treatment of pregnant rats with heat-denaturated bacterial material) and the stress-model (chronic restraint of prenatally lithium-treated pregnant dams). Fetuses were delivered by Caesarean section in the morning of the 21st gestational day. After disturbed pregnancy lipid peroxidation (iron-stimulated formation of thiobarbituric acid reagible substances) was not changed in 9,000 g supernatant of total brain. The values of all groups were higher after determination in frozen/thawed tissue in comparison to freshly prepared material. The results do not indicate an enhanced vulnerability of brain tissue after both models of disturbed pregnancy.
Two models of disturbed pregnancy, both causing decreased fetal body mass, were used: the endotoxin-model (treatment of pregnant rats with heat-denaturated bacterial material) and the stress-model (chronic restraint of prenatally lithium-treated pregnant dams). Fetuses were delivered by Caesarean section in the morning of the 21st gestational day. After disturbed pregnancy lipid peroxidation (iron-stimulated formation of thiobarbituric acid reagible substances) was not changed in 9,000 g supernatant of total brain. The values of all groups were higher after determination in frozen/thawed tissue in comparison to freshly prepared material. The results do not indicate an enhanced vulnerability of brain tissue after both models of disturbed pregnancy.