Fig. 4. Mitochondrial DNA (mtDNA) contents (A) and transmission electron microscopy images (B) of the brown adipose tissue of mice fed with NC, HF, and HF+CO diets for 16 weeks. The values are expressed as the mean±SE (n=8). Different letters (a-c) indicate significant differences among the three groups (NC, HF, and HF+CO) at P<0.05. Scale bar=2 μm; magnification=20,000×. Red arrows indicate mitochondria (M). NC, normal chow; HF, high-fat diet; HF+CO, HF+0.01% capsicum oleoresin; L, lipid droplet; nDNA, nuclear DNA.
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