Study on the Mechanism of Wound Healing Promotion of Panax notoginseng-Bletilla striata Gum Sponge on Diabetic Foot Ulcer Model Rats Based on Wnt/ β-catenin Signal Pathway
- VernacularTitle:基于Wnt/β-catenin信号通路的三七/白及胶海绵促进糖尿病足溃疡模型大鼠创面愈合的作用机制研究
- Author:
Ting LEI
1
;
Dongxu SUN
1
;
Jun ZHOU
1
;
Hailiang WEI
1
;
Xilu ZHANG
1
;
Zhiguo CHEN
1
Author Information
1. Dept. of General Surgery，the Affiliated Hospital of Shaanxi University of TCM，Shaanxi Xianyang 712000，China
- Publication Type:Journal Article
- Keywords:
Panax notoginseng-Bletilla striata gum sponge;
Diabetic foot ulcer;
Wound;
Healing promotion;
Wnt/β-catenin pathway;
Mechanism;
Rat
- From:
China Pharmacy
2019;30(4):483-487
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE： To study the mechanism of wound healing promotion of Panax notoginseng-Bletilla striata gum sponge on diabetic foot ulcer （DFU） model rats. METHODS： Healthy SD rats were selected and given high-lipid and high-glucose diet， intraperitoneal injection of streptozotocin once to establish diabetes model. Neodymium-iron-boron magnet was used to press the back of rats to make ulcer wound then established DFU model. Totally 60 DFU model rats were randomly divided into group A（blank group， i.e. normal saline gauze group）， group B（vaseline gauze group），group C （gelatin sponge group） and group D （P. notoginseng-B. striata gum sponge group）， with 15 rats in each group. The rats were given corresponding gauze/sponge to cover the wound for intervention treatment， changing dressing once every 1-2 days. On the 3rd and 7th day after intervention， the wound healing of rats in each group was observed with naked eyes， and the wound healing rate was calculated. The wound margin tissue was collected to obtain HE staining section， and histopathological observation was conducted under microscope. mRNA expression of β-catenin， GSK-3β and Rspo3 in wound tissue were determined by RT-PCR. RESULTS： On the 3rd and 7th day after intervention， compared with group A， B， C， healing rate of group D was increased significantly （P＜0.05）； inflammatory cell infiltration， collagen deposition， capillary and granulation tissue growth in wound tissue increased significantly. The mRNA expression levels of β-catenin and Rspo3 all increased， and those of GSK-3β all decreased； except for the difference of β-catenin at the 3rd day and GSK-3β at the 7th day after intervention between group D and group C were not significant， the difference of other indicators was statistically significant （P＜0.05）. CONCLUSIONS： P. notoginseng-B. striata gum sponge can effectively promote the wound healing in DFU model rats， the mechanism of which may be associated with up-regulating the expression of β-catenin and Rspo3 mRNA and down-regulating the expression of GSK-3β mRNA.
