Microbial growth inhibition by LL-37 and SEK20.

Microbial growth inhibition (expressed in mm) was measured using the radial diffusion assay (see also Materials and Methods). Clearance zones with a diameter more than 4 mm are considered as bacterial killing (n = 3; standard deviation was regularly less then 10%).采用径向扩散试验（radial diffusion assay，详见材料与方法）测定微生物生长抑制活性，以毫米（mm）为单位表征其水平。当抑菌圈直径大于4 mm时，判定为发生细菌杀灭作用（实验重复数n=3；标准差通常低于10%）。