Kantawong Fahsai, Singhatong Supawatchara, Srilamay Aomjai, Boonyuen Kantarose, Mooti Niroot, Wanachantararak Phenphichar, Kuboki Thasaneeya
Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand.
The Dental Research Center, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand.
Bioimpacts. 2017;7(1):13-23. doi: 10.15171/bi.2017.03. Epub 2017 Feb 8.
The addition of herbs into hot sesame oil could increase the oil-pulling efficiency of sesame oil. The aim of present study was to modify the proportion of herbs and sesame oil with the addition of other ingredients including menthol, camphor, and borneol and improve the medicinal properties and the scent of the oil. Macerated herbal oil was prepared by heat extraction of five species of herbs ( Linn and ) with hot sesame oil. The study was performed to evaluate the anti-oxidant, anti-inflammatory, and anti-bacterial properties of this macerated herbal oil. Macerated herbal oil was evaluated for antioxidant activity using DPPH and ABTS assays. It was shown that at dilution 1:2 in DMSO, the macerated herbal oil had DPPH and ABTS radical scavenging activities equal to 63% and 22%, respectively. Macerated herbal oil dilution 1:8 in DMSO demonstrated ferric reducing capacity equivalent to ascorbic acid (0.208 µM) and had reducing power equivalent to (BHT) 7.41 µg/mL. MTT assay was performed using immortalized human mesenchymal stem cells (HMSCs) as a cell culture model. The result indicated that the cytotoxic concentration of the macerated herbal oil was ≥ 2.5 µL/mL in complete DMEM. Anti-inflammatory effects were evaluated using the nitrite assay and RT-PCR. It was found that the macerated herbal oil could inhibit nitrite accumulation in culture media. Change in the expression of COX-2, Nrf2, and NF-kB in RT-PCR confirmed the anti-inflammatory activity of the macerated herbal oil. It could be concluded that the macerated herbal oil could inhibit nitrite accumulation in culture media, which might be the inhibitory effect of the macerated herbal oil on COX-2 or Nrf2, the downstream modulator of the COX-2 pathway. Further intensive studies are needed for the optimization before bringing this macerated herbal oil into clinical application.
在热芝麻油中添加草药可以提高芝麻油的油拔效率。本研究的目的是通过添加薄荷醇、樟脑和冰片等其他成分来调整草药与芝麻油的比例,并改善油的药用特性和气味。通过用热芝麻油对五种草药(林恩和)进行热提取制备浸制草药油。进行该研究以评估这种浸制草药油的抗氧化、抗炎和抗菌特性。使用DPPH和ABTS测定法评估浸制草药油的抗氧化活性。结果表明,在二甲基亚砜中1:2稀释时,浸制草药油的DPPH和ABTS自由基清除活性分别等于63%和22%。在二甲基亚砜中1:8稀释的浸制草药油表现出与抗坏血酸(0.208 μM)相当的铁还原能力,并且具有与(丁基羟基甲苯)7.41 μg/mL相当的还原能力。使用永生化人间充质干细胞(HMSCs)作为细胞培养模型进行MTT测定。结果表明,在完全DMEM中,浸制草药油的细胞毒性浓度≥2.5 μL/mL。使用亚硝酸盐测定法和RT-PCR评估抗炎作用。发现浸制草药油可以抑制培养基中亚硝酸盐的积累。RT-PCR中COX-2、Nrf2和NF-κB表达的变化证实了浸制草药油的抗炎活性。可以得出结论,浸制草药油可以抑制培养基中亚硝酸盐的积累,这可能是浸制草药油对COX-2或COX-2途径的下游调节因子Nrf2的抑制作用。在将这种浸制草药油应用于临床之前,需要进一步深入研究以进行优化。
Bioimpacts. 2017
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