Fig. 1

Soft paraffin sections showing (A) normal histological features of rats’ SSGs in group I with spherical serous acini without any mucous demilunes, well developed intercalated and striated ducts (black arrow), markedly developed GCTs (blue arrow head) and acinar cells have dark staining cytoplasm with normal basophilic nuclei (white arrow); (B) group II sections revealing disturbed architecture with a shrinkage of serous acini (circle), cytoplasmic vacuolization in both the acini (black arrow) and duct system (black arrow head) and some acinar cells have a deeply stained pyknotic nuclei (white arrow); (C) group III sections showing nearly the same histological features as group I with normal shape of serous acini, striated duct (white arrow head), granular convoluted tubules (black arrow head) and some acinar cells have binucleated nucleus (white arrow) and a dark basophilic staining cytoplasm (black arrow); H&E stain 400x