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In vitro anti-inflammatory activity and ameliorative effects on gastric ulcers of Licania rigida benth seed extract

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Abstract

Licania rigida Benth., a Brazilian endemic plant, has been traditionally used for treating inflammation and stomach pain. This work investigates the anti-inflammatory and gastroprotective activities of the ethanolic extract from L. rigida seeds (EELr) by in vitro and in vivo methods. The phytochemical profile was determined and the in vitro antioxidant activity was investigated by radical scavenging and thiobarbituric acid reactive substances methods. The ovalbumin denaturation method was used with sodium diclofenac as standard for the in vitro anti-inflammatory activity assessment. Acetylsalicylic acid was used to induce gastric ulcers in male mice and then to evaluate the preventive and therapeutic gastroprotective effect of EELr, using omeprazole as the reference drug. The extract exhibited relevant amount of phenolic compounds and flavonoids, in particular, demonstrating in vitro antioxidant capacity. EELr was able to inhibit almost 60% of ovalbumin denaturation at a concentration considered low. It also prevented the decrease of biochemical markers for oxidative stress such as superoxide dismutase (SOD) and reduced glutathione (GSH) in the stomach and SOD and catalase (CAT) in the liver. EELr also significantly decreased the number of lesions as well as reduced the ulcerated area when used as therapy. The observed effect may be due to its phenolic compounds, such as chlorogenic acid, caffeic acid and tannins, as previously reported. EELr is a potential source of compounds with anti-inflammatory activity, protects the liver from oxidative damage and improves healing of aspirin-induced ulcers. This work contributes to the knowledge of L. rigida species.

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All data generated or analysed for this study are included in this manuscript file.

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Acknowledgements

The authors would like to thank the Coordination for the Improvement of Higher Education Personnel (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – CAPES), the Federal University of Ceará and the Nucleus for Studies in Microscopy and Image Processing (NEMPI).

Funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001.

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JFR Writing—Original draft, Conceptualization, Methodology, Investigation; LCV Methodology, Formal Analysis, Investigation; Visualization; LCPAF Resources, Methodology, Formal Analysis, Conceptualization, Validation; TSA Formal analysis, Validation, Writing–Review and Editing; JJLN Formal analysis, Conceptualization; VVN Methodology, Formal Analysis; PMST Resources, Formal Analysis; DCSN-P Formal analysis, Investigation, Visualization, Resources; VCCG-C Methodology, Formal analysis, Investigation, Visualization; AFUC Writing- Review and Editing, Supervision, Project administration; EFM Writing- Review and Editing, Supervision, Project administration, Validation and Visualization.

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Correspondence to Erika Freitas Mota.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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de Freitas Rocha, J., de Castro Viana, L., Filho, L.C.P.A. et al. In vitro anti-inflammatory activity and ameliorative effects on gastric ulcers of Licania rigida benth seed extract. Inflammopharmacol 31, 2631–2640 (2023). https://doi.org/10.1007/s10787-023-01283-0

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  • DOI: https://doi.org/10.1007/s10787-023-01283-0

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