Abstract
The aim of this study was to evaluate the in vivo impacts of maternal n-3 polyunsaturated fatty acids (PUFAs) deficiency during pregnancy on the proliferation of neural progenitor cells (NPCs) in the developing cerebral cortex of fetal rats. Our results showed that about 5 weeks of maternal dietary n-3 PUFAs deprivation resulted in a substantial n-3 PUFA deficiency in fetal rat cerebral cortex. Importantly, by two survival schemes and two quantitative methods, we found that maternal intake of n-3 PUFAs deficient diet during the gestation significantly inhibited the proliferation of NPCs in fetal rat cerebral cortex. Moreover, the decreased cortical NPCs proliferation induced by nutritional n-3 PUFAs restriction did not originate from the increased NPCs apoptosis. Finally, our observations indicated that the down-regulation of cyclin E protein might be involved in the inhibitory effects of maternal n-3 PUFAs deficient diet on the proliferation of cortical NPCs. These findings highlight the importance of maternal intake of appropriate n-3 PUFAs and deepen our understanding of the exact effects of n-3 PUFAs on mammalian brain development.
Published Version
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