Ligustrazine nano-spray against postoperative abdominal adhesion

doi:10.3969/j.issn.2095-4344.0875

Abstract

Abstract:

BACKGROUND: Oxidative stress is one of the important mechanisms of postoperative abdominal adhesion. The nuclear factor-E2-related factor 2 (Nrf2)-antioxidant response element (ARE) signal pathway is an important endogenous anti-oxidation stress pathway. Our previous study found that ligustrazine nano-spray can inhibit the formation of postoperative abdominal adhesion in rats, and moreover, ligustrazine has an anti-oxidation effect.

OBJECTIVE: To observe the effect of ligustrazine nano-spray on the expression of mRNAs and proteins related to the Nrf2-ARE signal pathway in rats with abdominal adhesion, and to investigate the mechanism by which ligustrazine nano-spray inhibits abdominal adhesion via regulating the Nrf2-ARE signal pathway.

METHODS: Sprague-Dawley rats were randomly divided into sham group, model group, ligustrazine group and sodium hyaluronate group. In the sham group, only laparotomy was performed without modeling. In the model group, an abdominal adhesion model was created but no drug was used. In the ligustrazine group, ligustrazine nano-spray was used on the wound before incision suturing. In the sodium hyaluronate group, sodium hyaluronate was applied on the wound before incision suturing.

RESULTS AND CONCLUSION: Compared with the model group, ligustrazine nano-spray reduced the levels of reactive oxygen species, tissue inhibitor of matrix metalloproteinase 1, but increased the level of matrix metalloproteinase 9 in the rat serum. The expression of Nrf2 and HO-1 mRNA and proteins was also up-regulated in the ligustrazine group relative to the model group. Therefore, ligustrazine nano-sprays can inhibit abdominal adhesions in rats, and its mechanism may be related to the regulation of Nrf2 and heme oxygenase 1 mRNA and proteins expression and the activation of Nrf2-ARE signaling pathway.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Tissue Adhesions, NF-E2-Related Factor 2, Tissue Engineering

CLC Number:

R318

Lian Zi-yu, Yang Li-li, Bian Yao-yao, Wang Ya-jie, Ma Yan-ting, Wang Ye-tong, Tang Sheng-jin, Zeng Li, Li Wen-lin. Ligustrazine nano-spray against postoperative abdominal adhesion[J]. Chinese Journal of Tissue Engineering Research, 2018, 22(18): 2896-2902.

Figures/Tables 7

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