ORC ID , Yi-Lin Meng1, Chuang Li1, Yuan Wang MD, PhD 2 ORC ID ">
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RESEARCH ARTICLE
Year : 2022  |  Volume : 17  |  Issue : 6  |  Page : 1293-1298

Enriched environment for offspring improves learning and memory impairments induced by sevoflurane exposure during the second trimester of pregnancy


1 Department of Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
2 Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China

Correspondence Address:
Yuan Wang
Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1673-5374.327347

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Studies in animals indicate that sevoflurane exposure in the second trimester of pregnancy has harmful effects on the learning and memory of offspring. Whether an enriched environment can reverse the damage of sevoflurane exposure in the second trimester of pregnancy on the learning and memory of rat offspring remains unclear. In this study, rats at 14 days of pregnancy were exposed to 3.5% sevoflurane for 2 hours and their offspring were treated with an enriched environment for 20 successive days. We found that the enriched environment for offspring increased nestin and Ki67 levels in hippocampal tissue, increased hippocampal neurogenesis, inhibited glycogen synthase kinase 3β activity, and increased the expression of cell proliferation-related β-catenin and apoptosis-related Bcl-2, indicating that an enriched environment reduces sevoflurane-induced damage by increasing the proliferation of stem cells in the hippocampus. These findings suggest that an enriched environment can reverse the effects of sevoflurane inhaled by rats during the second trimester of pregnancy on learning and memory of offspring. This study was approved by the Animal Ethics Committee of Shengjing Hospital of China Medical University (approval No. 2018PS07K) on January 2, 2018.


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