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. 2023 Oct 29;31(12):101850. doi: 10.1016/j.jsps.2023.101850

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© 2023 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 4 — The microscopic views of gastric tissues expressing different levels of PAS stain in the gastric layers in rats. A, normal control showed efficient amount of PAS stain in their gastric tissues; B, ulcer controls revealed reduced expression of PAS, indicating lower glycoprotein and mucin content (magenta appearance); C, omeprazole-treated rats showed increased PAS stain in their gastric tissues; (D), rats treated orally with 250 mg/kg REPP had mild to moderate gastric mucosal damage with mild PAS intensity; (E), rats supplementation with 500 mg/kg REPP caused increased the mucin and glycoprotein content in gastric tissues evidenced by higher PAS expression in their stomach mucosal tissues compared to that of ulcer controls (PAS stain magnification 20×).