Tecoma sambucifolia: Anti-inflammatory and antinociceptive activities, and 'in vitro' toxicity of extracts of the 'huarumo' of Peruvian Incas

L. F. Alguacil, A. Galán De Mera, J. Gómez, F. Llinares, L. Morales, M. D. Muñoz-Mingarro, J. M. Pozuelo, J. A. Vicente Orellana

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Abstract

Aqueous and alcoholic extracts of pods and flowers of Tecoma sambucifolia H.B.K. (Bignoniaceae) ('huarumo') were analysed to determine their anti-inflammatory activity (carrageenan-induced edema test), antinociceptive activity (acetic acid writhing test) and 'in vitro' toxicity in Chinese hamster ovary cells, human hepatome cells and human larynx epidermal carcinoma cells. The cytotoxic effects of both extracts were evaluated by two endpoint systems: neutral red uptake assay and tetrazolium assay. The results showed that all extracts have anti-inflammatory and antinociceptive activity, but the highest potency is that of the alcoholic extracts. There were significant differences in cytotoxicity between extracts and among the response of cells to them. The highest cytotoxicity was noted with the alcoholic extract, and the human hepatome cell line was the most sensitive, especially to the alcoholic extract of flowers. The aqueous pod extract appeared to have the best pharmaco-toxicological profile, since it provided a significant reduction of both pain and inflammation together with the lowest cytotoxicity. (C) 2000 Elsevier Science Ireland Ltd.
Original languageAmerican English
Pages (from-to)227-233
Number of pages7
JournalJournal of Ethnopharmacology
Volume70
Issue number3
DOIs
StatePublished - 15 Jul 2000

Keywords

  • Carrageenan edema
  • Cytotoxicity
  • Extracts
  • Tecoma sambucifolia
  • Writhing test

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    Alguacil, L. F., Galán De Mera, A., Gómez, J., Llinares, F., Morales, L., Muñoz-Mingarro, M. D., Pozuelo, J. M., & Vicente Orellana, J. A. (2000). Tecoma sambucifolia: Anti-inflammatory and antinociceptive activities, and 'in vitro' toxicity of extracts of the 'huarumo' of Peruvian Incas. Journal of Ethnopharmacology, 70(3), 227-233. https://doi.org/10.1016/S0378-8741(99)00203-2