{"title":"Synergistic effects of zinc oxide and ellagic acid on macrophage infiltration, angiogenesis, and collagen deposition in excisional wounds healing","authors":"Intan Nirwana , Michelle Fidelia Alexandra , Tarissa Balqis Nuraida , Ahmad Thariq Bermani , Yasmin Shahaniz , Devi Rianti , Titien Hary Agustantina , Anita Yuliati , Khairul Annuar Shariff , Meircurius Dwi Condro Surboyo","doi":"10.1016/j.jobcr.2026.01.002","DOIUrl":null,"url":null,"abstract":"<div><h3>Objectives</h3><div>The combination of zinc oxide (ZnO) and ellagic acid (EA) in wound dressings offers synergistic benefits for wound healing due to their complementary antimicrobial, antioxidant, anti-inflammatory, and tissue regenerative properties. This study aimed to evaluate the effects of ZnO-EA dressing on macrophage infiltration, angiogenesis, and collagen density in excisional wounds on days 3 and 7 post-treatment.</div></div><div><h3>Materials and methods</h3><div>This in vivo posttest-only experimental study involved twenty <em>Rattus norvegicus</em> with excisional dorsal wounds, randomly assigned to two groups: a control group receiving ZnO dressing and a treatment group receiving ZnO-EA dressing. Each group was evaluated at day 3 and day 7, resulting in four observation subgroups. Tissue samples were collected to assess macrophage infiltration and angiogenesis using Hematoxylin and Eosin staining, and collagen density using Masson's Trichrome staining. Histological evaluation was performed under a light microscope at 400× magnification.</div></div><div><h3>Results</h3><div>Treatment with ZnO-EA resulted in significant increase in macrophages infiltration, the number of newly formed blood vessels, and collagen density in the treatment group compared to the ZnO group on both days 3 and 7 (p < 0.05).</div></div><div><h3>Conclusion</h3><div>The application of a ZnO wound dressing enriched with EA significantly enhances macrophage infiltration, angiogenesis, and collagen deposition during the wound healing process.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"16 2","pages":"Article 101398"},"PeriodicalIF":0.0000,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of oral biology and craniofacial research","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212426826000023","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/1/13 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives
The combination of zinc oxide (ZnO) and ellagic acid (EA) in wound dressings offers synergistic benefits for wound healing due to their complementary antimicrobial, antioxidant, anti-inflammatory, and tissue regenerative properties. This study aimed to evaluate the effects of ZnO-EA dressing on macrophage infiltration, angiogenesis, and collagen density in excisional wounds on days 3 and 7 post-treatment.
Materials and methods
This in vivo posttest-only experimental study involved twenty Rattus norvegicus with excisional dorsal wounds, randomly assigned to two groups: a control group receiving ZnO dressing and a treatment group receiving ZnO-EA dressing. Each group was evaluated at day 3 and day 7, resulting in four observation subgroups. Tissue samples were collected to assess macrophage infiltration and angiogenesis using Hematoxylin and Eosin staining, and collagen density using Masson's Trichrome staining. Histological evaluation was performed under a light microscope at 400× magnification.
Results
Treatment with ZnO-EA resulted in significant increase in macrophages infiltration, the number of newly formed blood vessels, and collagen density in the treatment group compared to the ZnO group on both days 3 and 7 (p < 0.05).
Conclusion
The application of a ZnO wound dressing enriched with EA significantly enhances macrophage infiltration, angiogenesis, and collagen deposition during the wound healing process.
期刊介绍:
Journal of Oral Biology and Craniofacial Research (JOBCR)is the official journal of the Craniofacial Research Foundation (CRF). The journal aims to provide a common platform for both clinical and translational research and to promote interdisciplinary sciences in craniofacial region. JOBCR publishes content that includes diseases, injuries and defects in the head, neck, face, jaws and the hard and soft tissues of the mouth and jaws and face region; diagnosis and medical management of diseases specific to the orofacial tissues and of oral manifestations of systemic diseases; studies on identifying populations at risk of oral disease or in need of specific care, and comparing regional, environmental, social, and access similarities and differences in dental care between populations; diseases of the mouth and related structures like salivary glands, temporomandibular joints, facial muscles and perioral skin; biomedical engineering, tissue engineering and stem cells. The journal publishes reviews, commentaries, peer-reviewed original research articles, short communication, and case reports.