Hsu Stephen
Department of Oral Biology and Maxillofacial Pathology, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912-1126, USA.
J Am Acad Dermatol. 2005 Jun;52(6):1049-59. doi: 10.1016/j.jaad.2004.12.044.
Plant extracts have been widely used as topical applications for wound-healing, anti-aging, and disease treatments. Examples of these include ginkgo biloba, echinacea, ginseng, grape seed, green tea, lemon, lavender, rosemary, thuja, sarsaparilla, soy, prickly pear, sagebrush, jojoba, aloe vera, allantoin, feverwort, bloodroot, apache plume, and papaya. These plants share a common character: they all produce flavonoid compounds with phenolic structures. These phytochemicals are highly reactive with other compounds, such as reactive oxygen species and biologic macromolecules, to neutralize free radicals or initiate biological effects. A short list of phenolic phytochemicals with promising properties to benefit human health includes a group of polyphenol compounds, called catechins, found in green tea. This article summarizes the findings of studies using green tea polyphenols as chemopreventive, natural healing, and anti-aging agents for human skin, and discusses possible mechanisms of action.
植物提取物已被广泛用作伤口愈合、抗衰老和疾病治疗的局部应用。其中包括银杏、紫锥菊、人参、葡萄籽、绿茶、柠檬、薰衣草、迷迭香、金钟柏、菝葜、大豆、仙人掌、艾草、荷荷巴、芦荟、尿囊素、泽兰、血根草、银叶委陵菜和木瓜。这些植物有一个共同特点：它们都能产生具有酚类结构的黄酮类化合物。这些植物化学物质与其他化合物，如活性氧和生物大分子，具有高度反应性，以中和自由基或引发生物学效应。一组具有有益人类健康前景特性的酚类植物化学物质包括在绿茶中发现的一类多酚化合物，称为儿茶素。本文总结了使用绿茶多酚作为人类皮肤化学预防、自然愈合和抗衰老剂的研究结果，并讨论了可能的作用机制。
