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Abstract
Aim: Sevoflurane could induce apoptosis of rat hippocampal neurons, while theaflavins (TFs) have antioxidant and anti-inflammatory properties. This study aims to explore whether TFs could alleviate sevoflurane-induced neuronal cell injury.
Materials and methods: Cells were treated by concentration gradient of sevoflurane and TFs. Cell viability, level of reactive oxygen species (ROS) and apoptosis rate were determined by cell counting kit-8 (CCK-8) and flow cytometry, respectively. Quantitative PCR (qPCR) and western blot were performed to determine mRNA and protein expressions.
Results: TFs promoted viability of cells under the treatment of sevoflurane, while it suppressed apoptosis and down-regulated ROS level in a concentration-dependent manner. TFs could also down-regulate expression levels of caspase-3 and caspase-9 and cytosol and intranuclear nuclear factor E2-related factor 2 (Nrf2) in rat hippocampal nerve cells, while it up-regulated those of heme oxygenase 1 (HO-1), NADPH quinine oxidoreductase 1 (NQO1), glutamate cysteine ligase (GCL) and peroxiredoxin 1 (Prx1).
Conclusions: Our study suggests that TFs exert protective effects on sevoflurane-induced neurocytotoxicity and therefore could be used as a potential drug for treatment of neuronal injury.
Disclosure statement
The authors declare no conflicts of interest.
Availability of data and materials
The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.