To exclude the possible affect of the decrease of nasal mucosa permeability, Human serum albumin (HSA), as the criterion of the nasal mucosa permeability, was measured before and after the experiments and was compared.

• 为了排除可能存在的鼻粘膜通透性减小给试验分析带来的影响，以人血清白蛋白（HSA）作为衡量鼻粘膜通透性的指标，在检测NGF的同时，对HSA也进行检测，并与NGF一样进行试验前、试验后两组问的比较。