Division of Biomedical Sciences, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu, India.
Food Chem Toxicol. 2010 Jun;48(6):1709-13. doi: 10.1016/j.fct.2010.03.050. Epub 2010 Apr 7.
Prevention of various diseases using natural compounds has been of interest for many decades. Floral diversity has been widely investigated for possible protective and preventive properties, and various plant-based medicines have been introduced in the recent times. Antioxidant potential, cytotoxicity and DNA cleavage protective properties of methanolic and aqueous extracts of Acalypha fruticosa Forssk were evaluated in this study. The amount of total phenolics was determined by a spectrophotometric method. Ferric reducing antioxidant property (FRAP) assay, radical scavenging assays (DPPH() and ()OH) and thiobarbituric acid (TBA) assay for testing inhibition of lipid peroxidation were employed to determine antioxidant property of the extracts. Furthermore, cytotoxicity of both extracts was tested by XTT assay in MDA-MB-435S (human breast carcinoma cell line) and Hep3B (human hepatocellular carcinoma). DNA protective efficiency of the extracts was also studied using UV-photolysed H(2)O(2)-driven oxidative damage to pBR322. Both extracts exhibited promising antioxidant potentials and marginal cytotoxicity to the tested cell lines. Simultaneously, the extracts showed considerably high DNA-protection against photolysed H(2)O(2)-induced oxidative damage in pBR322. The study concluded that A. fruticosa holds colossal and diverse therapeutic potentials which might be useful in development of drugs or their precursors, thereby holding immense clinical prospect.
几十年来,利用天然化合物预防各种疾病一直是人们关注的焦点。花卉多样性已被广泛研究,以寻找可能的保护和预防特性,并且近年来已经引入了各种基于植物的药物。本研究评估了 Acalypha fruticosa Forssk 的甲醇和水提取物的抗氧化潜力、细胞毒性和 DNA 切割保护特性。总酚含量通过分光光度法测定。采用铁还原抗氧化能力 (FRAP) 测定法、自由基清除测定法 (DPPH() 和 ()OH) 和硫代巴比妥酸 (TBA) 测定法测试抑制脂质过氧化来确定提取物的抗氧化特性。此外,通过 XTT 测定法在 MDA-MB-435S(人乳腺癌细胞系)和 Hep3B(人肝癌细胞)中测试了两种提取物的细胞毒性。还使用 UV 光解 H(2)O(2)驱动的 pBR322 氧化损伤研究了提取物的 DNA 保护效率。两种提取物均表现出有希望的抗氧化潜力和对测试细胞系的轻微细胞毒性。同时,提取物对 pBR322 中光解 H(2)O(2)诱导的氧化损伤具有相当高的 DNA 保护作用。该研究得出结论,A. fruticosa 具有巨大而多样的治疗潜力,可用于开发药物或其前体,从而具有巨大的临床前景。