Figure 2: Cx43 mRNA expression in whole lung 24 h following in subchronic treatment of mice with BHT. Cx43 was first normalized to 18S followed by normalization to the BALB oil control, as done previously [7]. Mean and SEM are presented of fold-change in Cx43 (n =3 mice per treatment; repeated three times).*, P<0.05 for BHT compared to oil treatment groups; +, p<0.05 for BALB versus BALBLps-d mice.