The tissues were isolated from mice in the fed condition and then immediately frozen in liquid nitrogen. Tissue homogenates were prepared, and 30–50 μg of protein was resolved on 4%–12% SDS-PAGE gels and subjected to Western blotting (12 (link)). Immunoblots were performed using antibodies against the following proteins: AKT (catalog 4685), P-AKTThr308 (catalog 13038), P-AKTSer473 (catalog 4060), FoxO1 (catalog 2880), FoxO3a (catalog D19A7), P-FoxO1Ser256 (catalog 9461), P-FoxO1Thr24/FoxO3aThr32/FoxO4Thr28 (catalog 2599), FoxO1 (catalog 2880), GSK3α/β (catalog 5676), P-GSK3βSer9 (catalog 5558), GS (catalog 3893), P-GSSer641 (catalog 94905), P-IRS-1Ser307 (catalog 2381), P-IRS-1Ser612 (catalog 3203), P-TSC2Ser939 (catalog 3615), TSC2 (catalog 3612), p-mTORSer2449 (catalog 5536), mTOR (catalog 2983), and P-ERKThr202/Tyr204 (catalog 9101) were purchased from Cell Signaling Technology. Antibodies against HNF-4α (catalog A2085), PGC-1α (catalog A11971), GK (catalog Ab293), G6Pase (catalog A16234), GKCR (catalog A5678), and β-actin (catalog AC026) were purchased from ABclonal, and ERK (catalog 514302) was purchased from Santa Cruz Biotechnology. Goat anti-mouse and goat anti–rabbit HRP–conjugated secondary antibodies (1:3000; Bio-Rad, 1662408EDU) were used for described experiments.
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