(A and B) (A) Representative western blot images for ALT2 and GAPDH proteins and (B) expression of Gpt2 mRNA in livers of mice fed either a control low-fat diet (LFD) (n = 5) or a 60% high-fat diet (HFD) (n = 5).
(C and D) Blood glucose concentrations after an i.p. injection of L-alanine (C) or L-glutamine (D) in diet-induced obese (HFD; n = 5) and lean (LFD; n = 5) mice.
(E) Representative western blot image for ALT2 and mitochondrial complex III from either db/+ or db/db mouse liver homogenates.
(F) Expression of Gpt2 in liver RNA from db/+ (n = 8) and db/db (n = 5, 7) mice (bottom panel).
(G and H) Blood glucose concentrations after an i.p. injection of L-alanine (G) or L-glutamine (H) in db/+ (n = 7, 8) and db/db mice (n = 6, 7). For (A) and (E) densitometric quantification of ALT2/loading control band intensity is provided numerically between the blots. Data are presented as mean ± SEM. *p ≤ 0.05 for LFD versus HFD or db/+ versus db/db.