Rika Trismayanti Ni Made, Dian Handayani
Department of Surgery, Division of Pediatric Surgery, Persahabatan General Hospital, Jakarta, Indonesia.
Department of Clinical Pathology, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia.
J Adv Pharm Technol Res. 2023 Jan-Mar;14(1):39-45. doi: 10.4103/japtr.japtr_505_22. Epub 2023 Jan 20.
Ulcerative colitis (UC) is an inflammation of the large intestine characterized by diarrhea with blood. UC has a more extensive manifestation in children. Current therapy has not given satisfactory results. This is the basis for the need for preventive therapy to reduce the morbidity and mortality of UC in children. Virgin coconut oil (VCO) is a viable dietary supplement option due to its ability to act as a peroxisome proliferator-activated receptor (PPAR) ligand, inhibiting the release of pro-inflammatory cytokines. The aim of this study was to determine natural compounds from VCO that have the potential to prevent colitis using a docking-based virtual screening approach. Quantitative structure-activity relationship analysis was used to find out how similar the input compounds and the database were. Docking is done using AutoDockTools 1.5.6. The algorithm used is the Lamarckian Genetic Algorithm (4.2). PPAR-gamma (PPAR-γ) was used as the target protein in a complex with rosiglitazone (ID PDB: 7AWC). PyMol 2.5.1 was used to prepare and visualize three-dimensional data, and the amino acid interactions were visualized using Discovery Studio 2021 Clients. It was found that linoleic acid and oleic acid in VCO have anti-inflammatory effects with predictive values of 0.73 and 0.614, respectively, and that they stop tumor necrosis factor (TNF) expression with predictive values of 0.751 and 0.724. The result of molecular docking showed that the VCO compound was able to interact with the same residue as the control. VCO reduces inflammation by acting as a PPAR-γ and TNF expression inhibitor.
溃疡性结肠炎(UC)是一种以血性腹泻为特征的大肠炎症。UC在儿童中的表现更为广泛。目前的治疗效果并不理想。这就是需要进行预防性治疗以降低儿童UC发病率和死亡率的依据。初榨椰子油(VCO)是一种可行的膳食补充剂选择,因为它能够作为过氧化物酶体增殖物激活受体(PPAR)配体,抑制促炎细胞因子的释放。本研究的目的是使用基于对接的虚拟筛选方法,确定VCO中具有预防结肠炎潜力的天然化合物。采用定量构效关系分析来了解输入化合物与数据库的相似程度。使用AutoDockTools 1.5.6进行对接。所使用的算法是拉马克遗传算法(4.2)。PPAR-γ与罗格列酮形成复合物(PDB ID:7AWC),以此作为靶蛋白。使用PyMol 2.5.1来准备和可视化三维数据,并使用Discovery Studio 2021客户端可视化氨基酸相互作用。研究发现,VCO中的亚油酸和油酸具有抗炎作用,预测值分别为0.73和0.614,并且它们能够抑制肿瘤坏死因子(TNF)的表达,预测值分别为0.751和0.724。分子对接结果表明,VCO化合物能够与对照物与相同的残基相互作用。VCO通过作为PPAR-γ和TNF表达抑制剂来减轻炎症。