Obesity and metabolism laboratory, Jean Mayer USDA HNRCA at Tufts University, Boston, MA 02111, USA.
Nutr Res Pract. 2008 Winter;2(4):326-30. doi: 10.4162/nrp.2008.2.4.326. Epub 2008 Dec 31.
Conjugated linoleic acids (CLA) were identified in 1980's, since then it has been intensively studied due to its various beneficial health effects such as anti-inflammatory, anti-atherogenic, anti-carcinogenic and anti-diabetic/obesity effects. Isomer specificity of a number of CLA isomers, especially predominant isomer 9Z,11E- and 10E,12Z-CLA, is now recognized. However, the less prevalent CLA isomers have not been well characterized. Recently, studies have reported the distinctively different effects of 9E,11E-CLA in colon cancer cells, endothelial cells, and macrophage cells compared to the rest of CLA isomers. In this review, various effects of CLAs, especially anti-inflammatory and anti-atherogenic effects, will be discussed with focusing on the isomer-specific effects and potential mechanism of action of CLA. At last, recent studies about 9E,11E-CLA in in vitro and animal models will be discussed.
共轭亚油酸(CLA)于 20 世纪 80 年代被发现,由于其具有多种有益的健康作用,如抗炎、抗动脉粥样硬化、抗癌和抗糖尿病/肥胖作用,此后一直受到广泛研究。目前已经确定了多种 CLA 异构体的异构体特异性,特别是主要的异构体 9Z,11E-和 10E,12Z-CLA。然而,较少见的 CLA 异构体尚未得到很好的表征。最近的研究报告称,与其他 CLA 异构体相比,9E,11E-CLA 在结肠癌细胞、内皮细胞和巨噬细胞中的作用明显不同。在这篇综述中,将讨论 CLA 的各种作用,特别是抗炎和抗动脉粥样硬化作用,并重点讨论 CLA 的异构体特异性作用和潜在作用机制。最后,将讨论最近关于 9E,11E-CLA 的体外和动物模型研究。