The protein expression of mitochondrial respiratory chain subunits (NADH: Ubiquinone Oxidoreductase Subunit B8 (Ndufb8), Succinate Dehydrogenase Complex Iron-Sulfur Subunit B (Sdhb), Cytochrome b-c1 complex subunit 2 (Uqcr2), Mitochondrially Encoded Cytochrome C Oxidase I (Mtco1), ATP synthase F1 subunit alpha (Atp5a)) (Figure 5A) was not different between the groups (SPF vs. SF and Sepsis vs. SPF). The gene discussed is SDHB; the disease is Sepsis.