Comparison of topical hypericum perforatum and metformin effectiveness in wound healing in streptozotocin-induced diabetic rats

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dc.contributor.authorTurhan, Banu
dc.contributor.authorSaglam, Sonmez
dc.contributor.authorYucel, Mucahit Osman
dc.contributor.authorDalaslan, Rasit Emin
dc.contributor.authorSungur, Mehmet Ali
dc.contributor.authorDemir, Fatih
dc.contributor.authorArican, Mehmet
dc.date.accessioned2026-07-01T11:39:27Z
dc.date.available2026-07-01T11:39:27Z
dc.date.issued2025
dc.departmentDüzce Üniversitesi
dc.description.abstractPurpose: Our study aimed to assess and compare the effectiveness of topically applied Hypericum perforatum (HP) and metformin on wound healing in diabetic rats. Methods: Thirty-two male Wistar rats (8-10 weeks old, 250 +/- 50g) were divided into four groups of eight rats each: Control, Diabetes mellitus (DM), Metformin (Met), and HP. Diabetes was induced in all experimental rats except the control group using streptozotocin (STZ) (60mg/kg, intraperitoneal). A full-thickness skin defect was created in all rats. Two milliliters (ml) of sterile saline were administered to the Control and DM groups, two ml of metformin (10% gel, topical) to the Met group, and two ml of HP (olive oil extract) to the HP group, repeated every 24 hours for 14 days. The condition of the lesions was monitored on days 0, 3, 7, 10, and 14, and the extent of contraction and granulation tissue formation was documented. At the 14(th) day, the lesioned areas were examined histopathologically and immunohistochemically. Results: The baseline characteristics of the rats before the study showed no significant differences between the groups (p>0.05). The HP group had the smallest final wound size and the highest wound contraction percentages from day 0 to 14 (p<0.001 for both). There was no statistically significant difference among the groups in the collagen index (p=0.118). The fibroblast density scores in the DM group were significantly lower than those in the other groups (p=0.004). The hypertrophic index values of the HP group were the highest compared to the other groups (p=0.003). Although the HP and control groups exhibited higher TGF-beta percentages and H scores than the other groups, these differences were not statistically significant (p=0.660 and p=0.647). Conclusion: Topically applied HP in uncontrolled DM rats improved wound healing scores more than the non-diabetic controls. Metformin also significantly enhanced healing in DM rats, with results comparable to controls. Since HP and metformin are easily accessible, further research could lead to cost-effective treatments for wound healing issues in DM patients.
dc.description.sponsorshipScientific Research Projects Unit of Duezce University [2024.04.02.1525] -- The author(s) declare financial support was received for the research and/or publication of this article. This research received financial support from the Scientific Research Projects Unit of Duezce University. (Project number: 2024.04.02.1525).
dc.identifier.doi10.3389/fendo.2025.1691294
dc.identifier.issn1664-2392
dc.identifier.pmid41268161
dc.identifier.scopus2-s2.0-105022653053
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://doi.org/10.3389/fendo.2025.1691294
dc.identifier.urihttps://hdl.handle.net/20.500.12684/23285
dc.identifier.volume16
dc.identifier.wosWOS:001618439300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherFrontiers Media Sa
dc.relation.ispartofFrontiers in Endocrinology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260623
dc.subjectDiabetes Mellitus
dc.subjectHypericum Perforatum
dc.subjectMetformin
dc.subjectRat
dc.subjectWound Healing
dc.titleComparison of topical hypericum perforatum and metformin effectiveness in wound healing in streptozotocin-induced diabetic rats
dc.typeArticle

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