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心血管系统的白细胞、内皮细胞、平滑肌细胞的生化代谢反应中可以产生活性氧自由基;在O_2、金属离子、不饱和脂肪酸及活性氧自由基的存在下,还可引发脂质过氧化反应,导致脂质自由基及脂质过氧化物的生成,进而损伤血管内皮细胞的完整性。实验表明,营养状况及食物成分对机体的抗氧化防御系统及其能力有着重要的影响。
The cardiovascular system of white blood cells, endothelial cells, smooth muscle cells in the biochemical metabolic reactions can produce reactive oxygen species; in O 2, metal ions, unsaturated fatty acids and reactive oxygen species in the presence of radicals, but also can trigger lipid peroxidation, Leading to the formation of lipid free radicals and lipid peroxides, thereby impairing the integrity of the vascular endothelial cells. Experiments show that nutritional status and food composition on the body’s antioxidant defense system and its ability to have a significant impact.