Fig. 2From: Biotin and chromium histidinate improve glucose metabolism and proteins expression levels of IRS-1, PPAR-γ, and NF-κB in exercise-trained ratsEffects of chromium histidinate and biotin supplementation on the expressions of IRS-1 (Panel a), PPAR-γ (Panel b) and NF-κB (Panel c) in the muscle of sedentary and exercise-trained rats. Different superscripts (a–e) indicate group mean differences (p < 0.05)Back to article page