Effect of dexmedetomidine on the cognitive function of patients undergoing gastric cancer surgery by regulating the PI3K/AKT signaling pathway

Wang,Zhiyuan; Shen,Zijin; Wang,Haibin; Zhang,Lin; Dong,Rong

doi:10.3892/ol.2019.11224

Effect of dexmedetomidine on the cognitive function of patients undergoing gastric cancer surgery by regulating the PI3K/AKT signaling pathway

Authors:
- Zhiyuan Wang
- Zijin Shen
- Haibin Wang
- Lin Zhang
- Rong Dong
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Affiliations: Department of Anesthesiology, Ruijin Hospital North, Shanghai Jiaotong University School of Medicine, Shanghai 201801, P.R. China
Published online on: December 18, 2019 https://doi.org/10.3892/ol.2019.11224
Pages: 1151-1156
Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Effect of dexmedetomidine on the cognitive function of patients undergoing gastric cancer surgery by regulating the phosphoinositide 3-kinase (PI3K)/AKT signaling pathway was investigated. A total of 110 patients who were diagnosed and underwent radical gastrectomy in Ruijin Hospital North, Shanghai Jiaotong University School of Medicine from July 2016 to July 2018 were selected. In the experimental group, 60 patients were treated with dexmedetomidine infusion. In the control group, 50 patients were injected with 0.9% sodium chloride injection during the same period. The expression levels of serum inflammatory factors tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), PI3K and AKT of patients were compared between the two groups before and after surgery for 1 day. The number of adverse reactions in the two groups was compared. The correlation between mini-mental state examination (MMSE) score and the expression levels of serum IL-6, PI3K and AKT was compared. The levels of serum TNF-α, IL-6, PI3K and AKT after operation for 1 day of patients in the two groups were significantly higher than those before operation (P<0.05), and were lower in the experimental than in the control group (P<0.05). The number of postoperative cognitive dysfunction of patients in the experimental group was lower than that of patients in the control group (P<0.05). The total number of adverse reactions in the control group was higher than that of patients in the experimental group (P<0.05). The MMSE scores of the two groups were decreased at 1 day after operation and were significantly lower in the control group than in the experimental group (P<0.05). The MMSE score was negatively correlated with the expression levels of serum TNF-α, IL-6, PI3K and AKT (P<0.001). Dexmedetomidine can effectively reduce the expression levels of postoperative inflammatory factors in patients undergoing gastric cancer surgery, improve the postoperative cognitive function by regulating PI3K-Akt signaling pathway and promotes the recovery of postoperative cognitive function.

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