Evidence-based complementary and alternative medicine : eCAM · 2022
Antiulcerogenic and Antibacterial Effects of Chitosan Derivatives on Experimental Gastric Ulcers in Rats.
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Pereira Leudimar Aires, Reis Luizângela da Silva, Mendes Anderson Nogueira, Fernandes Hélio de Barros, Arcanjo Daniel Dias Rufino, Rodrigues Júnior Adalberto Fortes, Sousa Janete Martins, Barreto Humberto Medeiros, Santos Jailson de Araújo, Osajima Josy Anteveli, Silva Filho Edson C
Аннотация
Gastric ulcer is an injury that develops on the lining of the stomach due to an imbalance between aggressive and defensive agents. Chitosan derivatives demonstrate promising biological activities in accelerating the healing activity of gastric lesions. Thus, this study aimed at investigating the healing activity of gastric lesion, induced by acetic acid (80%), of the chitosan derivative with acetylacetone (Cac) modified with ethylenediamine (Cacen) or diethylenetriamine (Cacdien). The biological activity was determined based on cytotoxicity, antibacterial activity, and gastroprotective activities. The results showed no significant difference in the cytotoxicity, a better antibacterial activity against S. aureus and E. coli, and a positive result on the healing of gastric lesions of the materials (Cac 18.4%, Cacen 55.2%, and Cacdien 68.1%) compared to pure chitosan (50.7%). Therefore, the results indicate that derivatives of chitosan are promising biomaterials for application in the control of lesions on the gastric mucosa.