Abstract
BackgroundThe second trimester is a period of neurogenesis and neuronal migration, which may be affected by exposure to anesthetics. Studies have suggested that multiple anesthetic exposures may have a significant impact on neuronal migration. MethodsPregnant C57BL/6 mice at embryonic day 14.5 were randomly divided into four groups: Con x 1, Sev x 1, Con x 2, and Sev x 2. Cortical neuronal migration in offspring mice was detected by GFP immunostaining, and the number of cells in the cortex was analyzed. ResultsDual exposure to sevoflurane, not single sevoflurane exposure, caused neuronal migration deficits. Dual exposure to sevoflurane increased the expression of prostaglandin D2 synthase (Ptgds). Furthermore, Ptgds siRNA attenuated neuronal migration deficits induced by dual sevoflurane exposure. ConclusionOur study suggests that multiple sevoflurane exposures in pregnant mice may induce neuronal migration deficits in offspring mice. Additional studies comprising long-term behavioral tests are required to confirm the effects of sevoflurane exposure during pregnancy.
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