Figure 4.
Energy homeostasis of ARHGAP21 Het-HFD mice. VO2 (A) n = 3, heat rate (B) n = 3, and RER (C) n = 3. Ambulatory activity for 24 h during light and dark periods (D) and mean of light and dark periods (E) n = 3. BAT weight (F) n = 6. Real-time PCR assay of ARHGAP21 and UCP1 mRNA levels in BAT (G) n = 4. Brown adipose tissue UCP1 protein content (H), n = 3–4. The samples were transferred to nitrocellulose membranes in this sequence: Ctl-HFD, Het-HFD, Ctl-HFD, Het-HFD, Ctl-HFD, Het-HFD, and Het-HFD. Control mice (Ctl) and ARHGAP21-haplodeficient mice (Het) fed a high-fat diet for 10 weeks. Data are the mean ± SEM. *P ≤ 0.05 (Student's-t-Test).