3) NF-κB p65 in cellular nucleus: On day 7 and 14, the level of NF-κB p65 in the cellular nuclei of the four groups was not significantly different (on day 7, NF-κB p65: Nicotine 0.257±0.017 vs Myocarditis 0.253±0.011 vs Methyllycaconitine 0.256±0.021 vs Normal 0.273±0.017, P>0.05; on day 14, NF-κB p65: Nicotine 0.266±0.019 vs Myocarditis 0.264±0.019 vs Methyllycaconitine 0.250±0.023 vs Normal 0.240±0.015, P>0.05) (Figure 6). Here, NFKB1 is linked to myocarditis.