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Conclusions : Es - trogen has significant protection for liver in reduced-size liver ischemia reperfusion injury .

结论：雌激素对大鼠部分肝缺血再灌注损伤具有明显的保护作用。

The potentiostatic immersion test showed that anodic polarization thickened the surface film and weakened the effect of ni - trogen .

恒电位浸泡实验表明，阳极极化增厚了表面膜，降低了氮的作用。

Human activities such as combustion of fossil fuels , production and application of ni - trogen fertilizer , and intensive agriculture and stockbreeding , have significantly elevated the re - active nitrogen concentration in the atmosphere , leading to nitrogen accumulation , and even nitro - gen saturation in some terrestrial ecosystems .

由于化石燃料的燃烧、含氮化肥的使用以及畜牧业等人类活动的影响，向大气中排放的含氮化合物数量不断上升，从而引起大气氮沉降的增加，使得某些陆地生态系统出现氮饱和现象。

One of mechanisms of the brain protection of the es - trogen ERT is likely through inducing the expression of the endogenous NGF and BDNF which enables neurons protection .

通过启动内源性NGF和BDNF的表达而实现对神经元的保护可能为雌激素替代治疗（ERT）脑保护作用的一种机制。