Related Experiment Video
Updated: Oct 10, 2025
07:36
Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
11.5K
Lithium administered to pregnant, lactating and neonatal rats: entry into developing brain
Shene Yi-Shiuan Chiou1, Kai Kysenius1, Yifan Huang1,2
1Department of Biochemistry & Pharmacology, University of Melbourne, Parkville, VIC, 3010, Australia.
Fluids and Barriers of the CNS
|December 8, 2021
Summary
Lithium crosses the placenta and enters fetal brains, though maternal blood levels are higher. This research informs potential risks of lithium therapy during pregnancy and lactation.
Area of Science:
- Neuroscience
- Pharmacology
- Developmental Biology
Background:
- Limited understanding of drug transfer to the developing brain during pregnancy and lactation.
- Lithium is a common treatment for bipolar disorder.
- Investigating lithium distribution in developing and adult animal models is crucial.
Purpose of the Study:
- To quantify lithium transfer into the blood, brain, and cerebrospinal fluid (CSF) of developing animals.
- To assess the impact of maternal lithium administration on offspring.
- To provide data for evaluating potential neurodevelopmental effects of lithium therapy.
Main Methods:
- Administered clinically relevant lithium doses to pregnant, lactating, and postnatal animals.
- Collected blood, CSF, and brain samples at various developmental stages.
- Measured lithium concentrations using advanced mass spectrometry techniques (ICP-MS, LA-ICP-MS).
Main Results:
- Lithium was detected in fetal and postnatal offspring following maternal administration.
- Placental and breast tissues partially protected offspring, with pup blood levels at 30-35% of maternal levels.
- Lithium readily entered fetal brains, and CSF levels remained stable across ages, suggesting non-Na+/K+-ATPase mediated transport.
Conclusions:
- Lithium distribution data in the developing brain is essential for assessing risks.
- This study provides a foundation for investigating lithium's effects on offspring neurodevelopment and behavior.
- Understanding lithium transfer is critical for managing maternal mental health during sensitive developmental periods.
