Fig 1: Assessment of GLUT4-docking and insulin/TGF-β1 signaling surface proteins in the frontal cortex. (A,C) Quantification of Insulin Receptor β (INS REC β), Insulin Receptor Substrate 1 (IRS1), TGF-β Receptor II (TGFβ REC II), and SNARE complex proteins (VAMP2, SNAP23, STX4) protein levels in the cortex homogenate. Sample sizes: INS REC β (n = 4); IRS1, VAMP2 (n = 6); TGFβ REC II (n = 7); SNAP23, STX4 (n = 10). (B,D) Representative Western blots.