Lycium barbarum polysaccharides attenuates the apoptosis of hippocampal neurons induced by sevoflurane

Xie,Yuhai; Wang,Xuejun

doi:10.3892/etm.2018.6426

Lycium barbarum polysaccharides attenuates the apoptosis of hippocampal neurons induced by sevoflurane

Authors:
- Yuhai Xie
- Xuejun Wang
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Affiliations: Department of Anesthesiology, Qinghai Red Cross Hospital, Xining, Qinghai 810000, P.R. China
Published online on: July 9, 2018 https://doi.org/10.3892/etm.2018.6426
Pages: 1834-1840
Copyright: © Xie et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Following the application of inhalational anesthetics, including sevoflurane, patients may suffer from neural injury. The present study was conducted to explore the mechanism involved in Lycium barbarum polysaccharides (LBP) treatment of sevoflurane injured hippocampal neurons. Primary hippocampal neurons were isolated from Sprague Dawley embryonic rats. Th\e Cell Counting Kit‑8 (CCK‑8) assay was used to detect cell viability. Furthermore, flow cytometry (FCM) was used to determine cell proliferation and apoptosis rates. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and western blot analysis were applied to detect the expression levels of apoptosis‑related factors, including activated‑Caspase‑3, B‑cell lymphoma/leukemia‑2 (Bcl‑2) and Bcl‑2 associated X (Bax), phosphorylated extracellular signal‑regulated kinase 1/2 (p‑ERK1/2) and total ERK1/2. The results showed that LBP promoted cell viability and cell proliferation but inhibited cell apoptosis in neurons injured with 3% sevoflurane, in dose‑dependent manners (100, 200 and 400 µg/ml). LBP increased the expression levels of Bcl‑2 and p‑ERK1/2, and decreased levels of activated‑Caspase‑3 and Bax in a dose‑dependent manner in hippocampal neurons that were injured with sevoflurane. In addition, ERK1/2 inhibitor reversed the above phenomenon in 400 µg/ml LBP and 3% sevoflurane‑treated hippocampal neurons. Therefore, the present study indicated that LBP protected hippocampal neurons from sevoflurane injury, including aberrant cell apoptosis, via the ERK1/2 pathway.

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