College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea.
Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine, Daegu 41062, Republic of Korea.
Molecules. 2023 Jan 14;28(2):849. doi: 10.3390/molecules28020849.
Periodontitis is caused by pathogens in the oral cavity. It is a chronic infectious disease that causes symptoms including gingival bleeding and tooth loss resulting from the destruction of periodontal tissues coupled with inflammation. H.Lév (DM) is a natural product that exhibits various biological activities with few side effects. In this study, the potential of DM leaf hot-water extracts (DMWE) as a treatment for periodontitis was determined and its anti-oxidant and anti-inflammatory effects were evaluated. Compounds in DMWE were identified by high-performance liquid chromatography (HPLC) and nitric oxide (NO) and prostaglandin E (PGE) production was measured in RAW 264.7 cells. We measured the gingival index and gingival sulcus depth, and micro-CT was performed in vivo using a ligature-induced periodontitis rat model, which is similar to human periodontitis. The DMWE-treated group exhibited a decrease in cytokine concentration and relieved the gingival index and gingival sulcus depth compared with the periodontitis-induced control group. In addition, micro-CT and histological analysis revealed that DMWE exhibited anti-inflammatory effects and improved alveolar bone loss in periodontitis-induced rats. These findings suggest that DMWE has excellent anti-oxidant and anti-inflammatory effects that protect and prevent periodontal tissue damage and tooth loss caused by the inflammatory response.
牙周炎是由口腔中的病原体引起的。它是一种慢性传染病,会导致牙龈出血和牙齿脱落等症状,这是由于牙周组织的破坏和炎症所致。H.Lév(DM)是一种天然产物,具有多种生物活性,副作用较少。本研究旨在确定 DM 叶热水提取物(DMWE)作为治疗牙周炎的潜在用途,并评估其抗氧化和抗炎作用。通过高效液相色谱(HPLC)鉴定 DMWE 中的化合物,并在 RAW 264.7 细胞中测量一氧化氮(NO)和前列腺素 E(PGE)的产生。我们通过结扎诱导的牙周炎大鼠模型(类似于人类牙周炎)在体内测量了牙龈指数和牙龈沟深度。与牙周炎诱导的对照组相比,DMWE 处理组的细胞因子浓度降低,牙龈指数和牙龈沟深度得到缓解。此外,微 CT 和组织学分析表明,DMWE 具有抗炎作用,可改善牙周炎诱导大鼠的牙槽骨丢失。这些发现表明,DMWE 具有出色的抗氧化和抗炎作用,可保护和预防炎症反应引起的牙周组织损伤和牙齿脱落。