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Updated: Aug 17, 2026

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
Published on: October 16, 2013
Effects of some water-soluble contrast media on the colonic mucosa
Abstract:
Enemas of various solutions were administered to rats to determine if Gastrografin was specifically irritating to the colonic mucosa. Gastrografin was found to cause considerably more inflammation than Hypaque-25, or barium sulfate. Further studies with hypertonic sorbitol, Renografin-76, and Tween 80 suggested that (a) neither hyperosmolality nor the diatrizoate compound itself were damaging to the colon, and (b) Tween 80 most likely plays a major role in Gastrografin's inflammatory effect.
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