论文部分内容阅读
在小鼠中进行的一项研究发现,两种常用的抗氧化剂--维生素E和一种名为N-乙酰半胱氨酸(NAC)的化合物--能够加速肺癌的生长,而不是遏制这种疾病。发表在最新出版的《科学-转化医学》上的这项研究成果可能与每天狼吞虎咽服用维生素E补充剂的数百万人的预期正好相反。2005年公布的一项调查显示,大约11%的美国成年人会服用维生素E补充剂,其剂量为400国际单位(IU)或更高。而建议的每日摄入量为22.4IU。通常认为维生素E和其他抗氧化剂可以防止体内某些活性化合物破坏细胞组件,包括DNA。由于DNA损伤与癌症有关,因此减少DNA损
A study in mice found that two commonly used antioxidants, vitamin E and a compound called N-acetylcysteine (NAC), accelerated lung cancer growth rather than deter Diseases. The research, published in the newly published Science-Translational Medicine, may be the exact opposite of what millions of people dreamed of taking vitamin E supplements every day. A survey released in 2005 showed that about 11% of U.S. adults take vitamin E supplements at a dose of 400 IU or more. The recommended daily intake of 22.4IU. Vitamin E and other antioxidants are generally considered to prevent certain active compounds in the body from damaging cellular components, including DNA. Because DNA damage is associated with cancer, DNA damage is reduced