›› 2020, Vol. 40 ›› Issue (3): 326-.doi: 10.3969/j.issn.1674-8115.2020.03.008

• Original article (Basic research) • Previous Articles     Next Articles

Effect of deuterium depleted water combined with platelet-rich plasma on wound healing of diabetic ulcer in rats

WANG Xiang-qi, ZHAO Chao-ran, XIONG Ai-bing   

  1. Department of Burn and Plastic Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
  • Online:2020-03-28 Published:2020-04-09

Abstract: Objective · To observe the effect of deuterium depleted water combined with platelet-rich plasma on wound healing of diabetic ulcer in rats, and to explore its possible mechanism. Methods · Male SD rats were randomly divided into two groups, normal control group (group A, n20) and diabetic group (n80). Rats in the diabetic group were fed with high-fat diet for 4 weeks, and the rat diabetic ulcer model was replicatedintraperitoneal injection of streptozotocin (STZ) + skin full-thickness resection; then randomly divided into diabetic model group (group B), platelet-rich plasma group (group C), deuterium depleted water group (group D), and deuterium depleted water combined platelet-rich plasma group (group E), with 18 rats for each group. Group A with common feed was fed for 4 weeks after intraperitoneal injection of an equal volume of citric acid-sodium citrate buffer + skin full-thickness resection to replicate the normal ulcer model. The animals were sacrificed after treatment for 3, 7 and 14 d, and the random blood glucose was measured at each corresponding time point. The wound surface and wound margin tissue were taken to observe the wound healing and local histomorphology of each group. The contents of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in the wound tissue of each group were detectedenzyme-linked reaction adsorption method. Results · Random blood glucose in group D and group E was lower than that before intervention. The inflammatory response of the wounds in each diabetic group was slower than that in group A. The granulation ripening effect of group E was faster than that of group B, C, and D. The effect was best in each intervention group, and the neovascularization and fibroblasts appeared earlier and in large quantities. The content of TIMP-1 in group A was significantly higher than that in group B, C, D and E (PPPPPConclusion · Deuterium depleted water can promote the healing of diabetic ulcer wounds. Deuterium depleted water combined with platelet-rich plasma can significantly promote the healing of diabetic ulcer wounds, which may be related to the decrease of random blood glucose, the increase of TIMP-1 and the inhibition of MMP-9 .

Key words: deuterium depleted water, platelet-rich plasma, diabetic ulcer, matrix metalloproteinase-9, tissue inhibitor of metalloproteinase-1, rat