Journal
EXPERIMENTAL ANIMALS
Volume 69, Issue 3, Pages 354-362Publisher
INT PRESS EDITING CENTRE INC
DOI: 10.1538/expanim.19-0142
Keywords
histopathology; magnetic resonance imaging (MRI); radiotherapy; radiation-induced esophagitis
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Funding
- General Programs of National Natural Science Foundation of China [81904186]
- Shandong Academy of Medical Sciences Foundation [2017-31, 2017-176]
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To investigate the effects of Co-Venenum Bufonis Oral Liquid (cVBOL) on radiation-induced esophagitis in rats. Irradiation (30 Gy) with X-RAD 225 x-ray was applied to induce esophagitis in 64 Wistar rats and treated by different methods. The body weight of rats either in RT group, cVBOL+RT, or EM+RT group was significantly decreased when compared with that in normal group (P<0.0001). After irradiation, histopathological studies, immunohistochemistry, and MRI scanning on esophagus were performed. Serum TNF-alpha,IL-6 and IL-10 were also determined by ELISA at 7, 14, 21 and 28 days after radiation treatment. The results demonstrated that radiation caused esophageal injury and thickening of esophageal tissue layers. The esophageal tissues after radiation treatment showed typical pathological changes of esophagitis. Radiation also caused esophagus edema. Treatment of cVBOL reduced the severity of histological esophageal lesion, decreased the expression of bFGF and TGF-beta 1, and lowered serum levels of inflammatory cytokines including TNF-alpha, IL-6 and IL-10 over 28 days after radiation treatment. In conclusion, cVBOL treatment is effective to prevent radiation induced esophagitis and reduces radiation induced esophagitis may be mediated through its ant-inflammatory effects.
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