A morphological and a histochemical stains were used to process the slides [4 (link), 6 (link)]. Slices were then rehydrated using progressive alcohol solutions (from 100 to 30% ethanol), to distilled water after being deparaffinized in xylene [17 (link)],G. [75 (link)], subsequently, they were stained using Mallory trichrome and AB/PAS [3 (link)]. After staining slides were mounted using Eukitt (BioOptica Milano S.p.A, Milan, Italy, Europe). Data on the stains used in this study are included in Table 1.

Stains used in this study

Stain nameTypeCatalogue numberSupplier
Mallory trichromeMorphological04–020,802BioOptica Milano S.p.A, Milan, Italy, Europe
Alcian blue/Periodic Acid Schiff (AB/PAS)Histochemical04–163,802BioOptica Milano S.p.A, Milan, Italy, Europe
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