alexa Effects of Aloe vera and sucralfate on gastric microcirculatory changes, cytokine levels and gastric ulcer healing in rats.
Gastroenterology

Gastroenterology

Journal of Gastrointestinal & Digestive System

Author(s): Eamlamnam K, Patumraj S, Visedopas N, ThongNgam D

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Abstract AIM: To compare the effects of Aloe vera and sucralfate on gastric microcirculatory changes, cytokine levels and gastric ulcer healing. METHODS: Male Spraque-Dawley rats (n=48) were divided into four groups. Group1 served as control group, group 2 as gastric ulcer group without treatment, groups 3 and 4 as gastric ulcer treatment groups with sucralfate and Aloe vera. The rats from each group were divided into 2 subgroups for study of leukocyte adherence, TNF-alpha and IL-10 levels and gastric ulcer healing on days 1 and 8 after induction of gastric ulcer by 20\% acetic acid. RESULTS: On day 1 after induction of gastric ulcer, the leukocyte adherence in postcapillary venule was significantly (P<0.05) increased in the ulcer groups when compared to the control group. The level of TNF-alpha was elevated and the level of IL-10 was reduced. In the ulcer groups treated with sucralfate and Aloe vera, leukocyte adherence was reduced in postcapillary venule. The level of IL-10 was elevated, but the level of TNF-alpha had no significant difference. On day 8, the leukocyte adherence in postcapillary venule and the level of TNF-alpha were still increased and the level of IL-10 was reduced in the ulcer group without treatment. The ulcer treated with sucralfate and Aloe vera had lower leukocyte adherence in postcapillary venule and TNF-alpha level. The level of IL-10 was still elevated compared to the ulcer group without treatment. Furthermore, histopathological examination of stomach on days 1 and 8 after induction of gastric ulcer showed that gastric tissue was damaged with inflammation. In the ulcer groups treated with sucralfate and Aloe vera on days 1 and 8, gastric inflammation was reduced, epithelial cell proliferation was enhanced and gastric glands became elongated. The ulcer sizes were also reduced compared to the ulcer group without treatment. CONCLUSION: Administration of 20\% acetic acid can induce gastric inflammation, increase leukocyte adherence in postcapillary venule and TNF-alpha level and reduce IL-10 level. Aloe vera treatment can reduce leukocyte adherence and TNF-alpha level, elevate IL-10 level and promote gastric ulcer healing.
This article was published in World J Gastroenterol and referenced in Journal of Gastrointestinal & Digestive System

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