Macroscopic and microscopic analysis of cheek pouch tissue of hamsters subjected to 5-FU-induced oral mucositis and treated with topical applications of S-nitrosoglutathione (0.5 mM), observed on days 10 and 14.

Oral mucositis was induced in hamsters by intraperitoneal (i.p.) injection of 5-FU followed by mechanical trauma (MT) of the cheek pouch. Animals received topical applications of S-nitrosoglutathione (0.5 mM), vehicle (HPMC) or saline 1 h prior to 5-FU and every 12 h thereafter for 10 days. H = healthy group, i.e., animals without oral mucositis. Data denote the median values (and range) of macroscopic or microscopic scores in six animals per group.
*P<0.05 compared with healthy animals (H group),
**P<0.05 compared with Saline group. Data were analyzed using Kruskal Wallis and Mann Whitney tests.
Macroscopic and microscopic analysis of cheek pouch tissue of hamsters subjected to 5-FU-induced oral mucositis and treated with topical applications of S-nitrosoglutathione (0.5 mM), observed on days 10 and 14.