In vitro hypoglycemic and antioxidant activities of some medicinal plants used in treatment of diabetes in southern Ecuador

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Ximena Jaramillo Fierro
Santiago Ojeda Riascos

Resumen

En el proceso de identificar plantas promisorias con actividades hipoglucémicas y antioxidantes, evaluamos las actividades inhibidoras de la α-glucosidasa y la α-amilasa, el contenido fenólico soluble total (TSPC), la actividad de eliminación de radicales libres (DPPH, ABTS) y la capacidad inhibidora de la autooxidación linoleica, de doce plantas utilizadas en la medicina tradicional del Ecuador: Siparuna eggersi (Monte de oso), Croton wagneri (Moshquera), Ilex guayusa (Guayusa), Baccharis genistelloides (Tres filos), Neonelsonia acuminada (Zanahoria blanca), Oreocallis grandiflora (Cucharillo), Verbena litoralis (Verbena), Justicia colorata (Insulina), Artocarpus altilis (Fruto del pan), Adiantun poiretii (Culantrillo), Costus comosus (Caña agria) y Piper crassinervium (Guabiduca). O. grandiflora se encontró superior a las otras plantas, especialmente en términos de su actividad inhibidora sobre α-glucosidasa (IC50 = 2.8 ± 0.4 μg / mL) y α-amilasa (IC50 = 161.5 ± 1.3 μg / mL), así como para los radicales libres (DPPH, ABTS) actividad de barrido (IC50-DPPH = 9.9 ± 0.06 μg / mL; IC50-TEAC = 6.6 ± 0.55 μg / mL). Por otro lado, A. altilis tuvo la mayor capacidad inhibidora de la autooxidación linoleica (IC50-β-CLAMS = 3.1 ± 0.20 μg / mL), y O. grandiflora, nuevamente, obtuvo el valor más alto de contenido fenólico soluble total (TSPC = 185.9 ± 0.09 GAE / g extracto). Estos hallazgos sugieren que O. grandiflora podría considerarse como un agente inhibidor y antioxidante enzimático alternativo para el tratamiento de la diabetes mellitus.

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Jaramillo FierroX., & Ojeda RiascosS. (2018). In vitro hypoglycemic and antioxidant activities of some medicinal plants used in treatment of diabetes in southern Ecuador. AXIOMA, (18), 23-36. Recuperado a partir de http://axioma.pucesi.edu.ec/index.php/axioma/article/view/524
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