were incubated with primary insulin antibody (Abcam, Cambridge, MA, USA), along
with secondary AffiniPure Goat Anti-Mouse IgG H&L antibody (Jackson
Immunoresearch Laboratories and Molecular Probes, West Grove, PA, USA).
Counterstaining was performed with DAPI (Vector, Burlingame, CA, USA).
Pannoramic MIDI and Pannoramic Viewer (3DHistech, Budapest, Hungary) were used
to scan stained slides and capture images. All the pictures were quantified and
analyzed using Image-Pro Plus software.