Western blot analysis of DPP III protein level in the nucleus of sham, hsham, hovx, and hovxe groups of mice. Combined effect of hyperoxia and E2 administration significantly increased nuclear DPP III level, compared to normoxic sham-operated group of mice (ap=0.042, sham vs. hovxe) (A). Representative DPP III immunoblots of hepatic nuclear fractions. Histone H3 was used to assess the purity of nuclear fraction. Amidoblack was used as a loading control. The results are presented as mean±S.D. and normalized to sham group. The experiments were repeated three times and the representative immunoblot of one sample per group is presented. Letters C and N designate cytosolic and nuclear fraction, respectively, while numbers denote sample groups as follows: 1-sham; 2-hsham; 3-hovx; 4-hovxe (B).