Fig. 2From: Will Nigella sativa oil protect parotid glands of rats against cranium gamma irradiation? Histological and immunohistochemical evaluationPhotomicrographs of Masson’s trichrome-stained parotid glands (A) The control group showed traces of collagen around ducts. (B) The NSO group exhibited very little collagen around ducts. (C) The radiation group demonstrated an excessive amount of collagen around ducts. (D) The NSO + radiation group revealed little collagen around ducts. Collagen fibers appeared green‒blue in color. (E) Chart representing the area percentage of collagen expression in different experimental groupsBack to article page