Korean J Gastroenterol.  2020 Jan;75(1):39-45. 10.4166/kjg.2020.75.1.39.

Effect of Sodium Cromoglycate on Acetic Acid-induced Ulcerative Colitis in Mice

  • 1Department of Biochemistry, Biophysics and Genetics, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
  • 2Department of Internal Medicine, School of Medicine, Alimentary Tract Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
  • 3Department of Pharmacology, School of Medicine, Yasuj University of Medical Science, Yasuj, Iran.
  • 4Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran.
  • 5Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
  • 6Department of Pharmacology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
  • 7Department of Pharmacology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. dr.houshmand_pharmaco@yahoo.com
  • 8Gut and Liver Research Center, Mazandaran University of Medical Sciences, Sari, Iran.


Ulcerative colitis (UC) is a type of inflammatory bowel disease that mainly involves the colon. Thus far, glucocorticoids and amino-salicylate have been the main treatment.
To assess drugs with fewer side effects, this study evaluated the effects of sodium cromoglycate (SCG) on acetic acid-induced UC in rats. The treatment groups included SCG receivers (50 and 100 mg/kg, intra-orally) and sulfasalazine (SSZ) receivers (100 mg/kg, intra-orally). The colonic mucosal injury was assessed by clinical, macroscopic, and histopathological examinations.
In the treatment groups with 50 and 100 mg/kg of SCG, the clinical activity score decreased to 2.67±0.18 and 1.73±0.21 (p<0.05), respectively, compared to the UC control group (3.21±0.31), and were higher than that of the group given the standard treatment of 100 mg/kg SSZ (1.10±0.09). The treatment groups with 50 and 100 mg/kg of SCG showed a lower clinical gross lesion score than the UC control group (2.91±0.28 and 2.10±0.43, vs. 4.49±0.61, p<0.05) and were higher than the standard group (0.95±0.18). Treatment with SCG (100 mg/kg) decreased the macroscopic scores significantly compared to the UC control group (p<0.05) on the 8th day.
SCG (100mg/kg) decreased significantly the clinical activity score, gross lesion, and percentage-affected area compared to the UC controls on the 8th day.


Sodium cromoglycate; Acetic acid; Colitis, ulcerative

MeSH Terms

Acetic Acid
Colitis, Ulcerative*
Cromolyn Sodium*
Inflammatory Bowel Diseases
Acetic Acid
Cromolyn Sodium


  • Fig. 1 Schematic pattern of the experiments.

  • Fig. 2 Clinical activity and gross lesion score in the treatment groups. SCG, sodium cromoglycate; AA, acetic acid; SSZ, sulfasalazine.

  • Fig. 3 Histopathological changes in the colon of the experimental mice. (A, B) Normal intact mucosa from groups I and II, showing an intact epithelial surface (H&E, ×4). (C) Group III, acetic acid induced ulcerative colitis showing massive necrotic destruction of the epithelium, submucosal edema, areas of hemorrhage, and inflammatory cellular infiltration (H&E, ×4). (D) Group IV (SCG 50 mg/kg) showing minimal damage to the mucosa with slight submucosal edema (H&E, ×4). (E) Group V (SCG 100 mg/kg) showing significant protection of the colonic mucosa from acetic acid damage (H&E, ×4). (F) Group VI (SSZ 100 mg/kg) showing a normal colonic structure (H&E, ×4). SCG, sodium cromoglycate; SSZ, sulfasalazine.


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