The brain tissues were collected and then homogenized on ice using
T-PER (Thermo Scientific, Waltham, MA, USA) buffer with protease inhibitor cocktail set III (Calbiochem, Merck, Germany) and
phosphatase inhibitors (Cayman Chemical, Ann Arbor, MI, USA). Protein concentrations were determined using the Bradford reaction. Aliquots (20 μg) were solubilized in a Laemmli buffer with 2 %
mercaptoethanol (BioRad, Hercules, CA, USA) and subjected to 10 % SDS-polyacrylamide gel electrophoresis as described previously (Gdula-Argasińska et al. 2015 (
link)). We used primary antibodies:
anti-COX-2 (diluted 1:500), anti-cPGES (diluted 1:1000),
anti-Nrf2 (diluted 1:100),
anti-AhR (diluted 1:500), and
anti-GAPDH (diluted 1:1000) (GeneTex Inc., Irvine, CA, USA), as well as NF-ĸB p50, NF-ĸB p65 (Cayman Chemical), diluted 1:100 and anti-GLUT4 (Sigma-Aldrich, Saint Louis, MO, USA), diluted 1:200 in
Signal + for Western Blot (GeneTex). The secondary antibody was
EasyBlot anti-rabbit IgG (HRP) diluted 1:1000 in
Signal + for Western Blot (GeneTex). Proteins were detected using a Clarity Western ECL luminol Substrate Western blotting detection kit (Bio-Rad). The integrated optical density of the bands was quantified using a
ChemiDoc Camera with
Image Lab software (Bio-Rad).
Sałat K., Gdula-Argasińska J., Malikowska N., Podkowa A., Lipkowska A, & Librowski T. (2016). Effect of pregabalin on contextual memory deficits and inflammatory state-related protein expression in streptozotocin-induced diabetic mice. Naunyn-Schmiedeberg's Archives of Pharmacology, 389, 613-623.