{"title":"<i>Hippophae rhamnoides</i> L. leaf extract augments dermal wound healing in streptozocin-induced diabetic rats.","authors":"Nitin K Upadhyay, Gaurav K Keshri, Asheesh Gupta","doi":"10.12968/jowc.2021.0309","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>The present investigation was undertaken to determine the healing efficacy of <i>Hippophae rhamnoides</i> L. (sea buckthorn (SBT)) leaf aqueous lyophilised extract (SBTL-ALE) on a diabetic wound model in rats. The effect of SBTL-ALE was also evaluated on human epithelial cell lines (A431) by using in vitro wound closure and transwell migration assays.</p><p><strong>Method: </strong>A total of four full-thickness excision-type wounds were created on the dorsal surface of streptozocin-induced diabetic rats. The animals were divided into two groups: control rats treated with soft white petroleum jelly and experimental rats treated with SBTL-ALE (5.0%, weight/weight) ointment applied topically, twice daily for seven days.</p><p><strong>Results: </strong>SBTL-ALE significantly (p<0.05) accelerated the migration of epithelial cells in in vitro wound closure and transwell migration assays. Further, SBTL-ALE augmented the healing process by significantly (p<0.05) enhanced wound area contraction, faster complete epithelial closure, increased hydroxyproline (collagen) and hexosamine levels in diabetic rats. Histopathological findings confirmed the healing potential of SBTL-ALE. Immunohistochemical analyses showed increased expression of transforming growth factor (TGF)-β and α-smooth muscle actin in SBTL-ALE-treated wounds of diabetic rats. Superoxide dismutase, catalase and reduced glutathione levels increased, whereas reactive oxygen levels were decreased significantly (p<0.05) in SBTL-ALE-treated wounds compared to diabetic controls, which conferred redox homeostasis.</p><p><strong>Conclusion: </strong>Our results suggest that SBTL-ALE accelerated transdermal wound healing in diabetic rats by increasing the rate of wound contraction, enhancing levels of collagen, hexosamine and endogenous antioxidants, and reducing oxidative stress.</p>","PeriodicalId":17590,"journal":{"name":"Journal of wound care","volume":"34 2","pages":"146-153"},"PeriodicalIF":1.5000,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of wound care","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.12968/jowc.2021.0309","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DERMATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: The present investigation was undertaken to determine the healing efficacy of Hippophae rhamnoides L. (sea buckthorn (SBT)) leaf aqueous lyophilised extract (SBTL-ALE) on a diabetic wound model in rats. The effect of SBTL-ALE was also evaluated on human epithelial cell lines (A431) by using in vitro wound closure and transwell migration assays.
Method: A total of four full-thickness excision-type wounds were created on the dorsal surface of streptozocin-induced diabetic rats. The animals were divided into two groups: control rats treated with soft white petroleum jelly and experimental rats treated with SBTL-ALE (5.0%, weight/weight) ointment applied topically, twice daily for seven days.
Results: SBTL-ALE significantly (p<0.05) accelerated the migration of epithelial cells in in vitro wound closure and transwell migration assays. Further, SBTL-ALE augmented the healing process by significantly (p<0.05) enhanced wound area contraction, faster complete epithelial closure, increased hydroxyproline (collagen) and hexosamine levels in diabetic rats. Histopathological findings confirmed the healing potential of SBTL-ALE. Immunohistochemical analyses showed increased expression of transforming growth factor (TGF)-β and α-smooth muscle actin in SBTL-ALE-treated wounds of diabetic rats. Superoxide dismutase, catalase and reduced glutathione levels increased, whereas reactive oxygen levels were decreased significantly (p<0.05) in SBTL-ALE-treated wounds compared to diabetic controls, which conferred redox homeostasis.
Conclusion: Our results suggest that SBTL-ALE accelerated transdermal wound healing in diabetic rats by increasing the rate of wound contraction, enhancing levels of collagen, hexosamine and endogenous antioxidants, and reducing oxidative stress.
期刊介绍：
Journal of Wound Care (JWC) is the definitive wound-care journal and the leading source of up-to-date research and clinical information on everything related to tissue viability. The journal was first launched in 1992 and aimed at catering to the needs of the multidisciplinary team. Published monthly, the journal’s international audience includes nurses, doctors and researchers specialising in wound management and tissue viability, as well as generalists wishing to enhance their practice.
In addition to cutting edge and state-of-the-art research and practice articles, JWC also covers topics related to wound-care management, education and novel therapies, as well as JWC cases supplements, a supplement dedicated solely to case reports and case series in wound care. All articles are rigorously peer-reviewed by a panel of international experts, comprised of clinicians, nurses and researchers.
Specifically, JWC publishes:
High quality evidence on all aspects of wound care, including leg ulcers, pressure ulcers, the diabetic foot, burns, surgical wounds, wound infection and more
The latest developments and innovations in wound care through both preclinical and preliminary clinical trials of potential new treatments worldwide
In-depth prospective studies of new treatment applications, as well as high-level research evidence on existing treatments
Clinical case studies providing information on how to deal with complex wounds
Comprehensive literature reviews on current concepts and practice, including cost-effectiveness
Updates on the activities of wound care societies around the world.
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