Department of Basic Science, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran.
Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran.
Biomed Pharmacother. 2019 Jan;109:1650-1658. doi: 10.1016/j.biopha.2018.10.117. Epub 2018 Nov 17.
Medicinal plants are conventionally used for wound healing, but their action mechanisms are still unknown. The present study evaluated the effect of topical administration of ointment containing dill (Anethum graveolens) essential oil (DEO) in the management of apoptosis and cell proliferation during MRSA-infected experimentally induced wound healing process in BALB/c mice model. The GC-FID and GC-MS techniques were used to analyze chemical composition of the essential oil. The mice were randomly divided into four treatment groups including negative control (sham), 2% and 4% DEO and mupirocin-treated animals. The full-thickness excisional wounds were inoculated by 5 × 10 colony-forming units of MRSA. In order to assess the effect of different concentrations of DEO on wounds infection, wound area, bacterial count, histopathological, immunohistochemical and RT-PCR analysis were evaluated. The GC-MS analysis identified α-phellandrene (47.3%), p-cymene (18.5%) and carvone (14.1%) as the main compounds of the essential oil tested here. Administration of DEO prevented bacterial growth and also reduced wound area in comparison to the control group. Topical administration of DEO significantly reduced the inflammatory phase and accelerated re-epithelialization, angiogenesis, fibroblast and collagen deposition. Moreover, the DEO-treated animals exhibited higher expressions of Bcl-2, p53 caspase-3, VEGF and FGF-2 in comparison to the control and mupirocin-treated groups (P < 0.05). Topical administration of DEO decreases the inflammatory phase by increasing p53 and caspases-3 expression. It triggers the proliferative phase by up-regulation of the Bcl-2, VEGF and FGF-2 expression and also up-regulates the collagen biosynthesis by enhancing the ERα expression level. Thus, ointment prepared from dill essential oil, in Iran, with its major compounds such as α-phellandrene, p-cymene and carvone can be used as an agent for accelerating the infected wound healing.
药用植物传统上用于伤口愈合,但它们的作用机制仍不清楚。本研究评估了含有莳萝(Anethum graveolens)精油(DEO)的软膏局部给药对 BALB/c 小鼠模型中 MRSA 感染诱导的伤口愈合过程中细胞凋亡和细胞增殖的影响。GC-FID 和 GC-MS 技术用于分析精油的化学成分。将小鼠随机分为四组治疗组,包括阴性对照组(假手术)、2%和 4%DEO 组和莫匹罗星治疗组。用 5×10 个菌落形成单位的 MRSA 接种全层切除伤口。为了评估不同浓度的 DEO 对伤口感染的影响,评估了伤口面积、细菌计数、组织病理学、免疫组织化学和 RT-PCR 分析。GC-MS 分析鉴定出α-蒎烯(47.3%)、对伞花烃(18.5%)和香芹酮(14.1%)为这里测试的精油的主要成分。与对照组相比,DEO 的给药可防止细菌生长并减少伤口面积。DEO 的局部给药显著减少了炎症期并加速了再上皮化、血管生成、成纤维细胞和胶原蛋白沉积。此外,与对照组和莫匹罗星治疗组相比,DEO 处理的动物表现出更高的 Bcl-2、p53 caspase-3、VEGF 和 FGF-2 表达(P<0.05)。DEO 的局部给药通过增加 p53 和 caspase-3 的表达来减少炎症期。它通过上调 Bcl-2、VEGF 和 FGF-2 的表达来触发增殖期,还通过增强 ERα 表达水平来上调胶原蛋白生物合成。因此,用伊朗莳萝精油制备的软膏及其主要成分,如α-蒎烯、对伞花烃和香芹酮,可作为加速感染性伤口愈合的药物。
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