Atividades hipoglicéticas e antioxidantes in vitro de algunas plantas medicinais utilizadas no tratamento do diabetes no sul do Equador

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Ximena Jaramillo Fierro
Santiago Ojeda Riascos

Resumo

No decorrer da identificação de plantas promissórias com atividades hipoglicêmicas e antioxidantes, avaliamos as atividades inibitórias de α-glucosidase e α-amilase, o conteúdo fenólico solúvel total (TSPC), a atividade de eliminação de radicais livres (DPPH, ABTS) e a capacidade inibitória da autoxidação linoléica , de doze plantas usadas na medicina tradicional do Equador: Siparuna eggersi (Monte de oso), Croton wagneri (Moshquera), Ilex guayusa (Guayusa), Baccharis genistelloides (Tres filos), Neonelsonia acuminate (Zanahoria blanca), Oreocallis grandiflora (Cucharillo) , Verbena litoralis (Verbena), Justicia colorata (Insulina), Artocarpus altilis (Fruto del pan), Adiantun poiretii (Culantrillo), Costus comosus (Caña agria) e Piper crassinervium (Guabiduca). O estudo mostrou que O. grandiflora foi superior. em comparação com as demais plantas, principalmente, em termos de sua atividade inibitória sobre α-glucosidase (IC50 = 2,8 ± 0,4 μg / mL) e α-amilase (IC50 = 161,5 ± 1,3 μg / mL), bem como para o radi livre atividade de eliminação de cals (DPPH, ABTS) (IC50-DPPH = 9,9 ± 0,06 μg / mL; IC50-TEAC = 6,6 ± 0,55 μg / mL). Por outro lado, A. altilis teve a maior capacidade inibitória da autoxidação linoléica (IC50-β-CLAMS = 3,1 ± 0,20 μg / mL), e O. grandiflora novamente teve o maior valor de conteúdo fenólico solúvel total (TSPC = 185,9 ± 0,09 GAEs / extrato de g). Esses achados sugerem que O. grandiflora pode ser considerado um agente inibitório e antioxidante alternativo de enzimas para o tratamento do diabetes mellitus.

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Jaramillo FierroX., & Ojeda RiascosS. (2018). Atividades hipoglicéticas e antioxidantes in vitro de algunas plantas medicinais utilizadas no tratamento do diabetes no sul do Equador. AXIOMA, (18), 23-36. Recuperado de https://axioma.pucesi.edu.ec/index.php/axioma/article/view/524
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