Figure 4: Nuclear Division Index (NDI) comparisons between untreated control (0 dose) and head lice treatments. HaCaT cells were plated described in materials and methods section. Cells received head lice treatments for 1h. (NDI) was determined by the cytokinesis Block micronucleus (CBMN) assay. Data are shown as percentage compared to untreated control and are mean of 3 replicates ± S.E.M. Significant difference at *P<0.05 , **P< 0.01. Dose code from Table 1.