论文部分内容阅读
人们历来认为,地球上细菌和病毒是威胁人类生命的大敌。本世纪抗生素的应用使很多感染性疾病的死亡率大幅度下降,拯救了数亿人的生命。但随着环境污染的恶化,人类才发现还有比细菌和病毒更凶险、更隐蔽的敌人,这其中就有自由基。人类许多疾病与自由基氧化损伤有关。 分子是由原子组成,原子由原子核和电子组成,如果这个分子或原子缺少一个电子,就会去掠夺别的地方的电子,使其达到平衡。掠夺电子的原子或分子
People have always believed that bacteria and viruses on the earth are the enemy that threaten human life. The use of antibiotics in this century has led to a dramatic drop in mortality rates for many infectious diseases, saving hundreds of millions of lives. However, with the deterioration of environmental pollution, human beings have found that there are more dangerous and more invisible enemies than bacteria and viruses, of which there are free radicals. Many human diseases and free radical oxidation damage related. Molecules are made up of atoms that are made up of nuclei and electrons. If this molecule or atom lacks an electron, it will plunder the electrons elsewhere to bring it to equilibrium. To plunder an atom or molecule of electrons