NRF1 and pemphigus foliaceus: As shown in Figure 1(A), the protein expression of phospho-AMPK (0.35 ± 0.20 vs. 0.67 ± 0.21), PGC-1α (0.61 ± 0.02 vs. 0.96 ± 0.23), NRF-1 (0.41 ± 0.04 vs. 0.88 ± 0.004), NRF-2 (0.45 ± 0.14 vs. 0.84 ± 0.14) and TFAM (0.51 ± 0.05 vs. 0.81 ± 0.10) was decreased in the PF group compared to the control group (p < 0.05).