Costus spiralis (Jacq.) Roscoe: A Novel Source of Flavones with α-Glycosidase Inhibitory Activity.
Chem Biodivers
; 15(1)2018 Jan.
Article
em En
| MEDLINE
| ID: mdl-29124880
ABSTRACT
Costus spiralis, a plant used in traditional Brazilian medicine for the treatment of complications in diabetes, was investigated. Assay of hexane, ethyl acetate, methanol, and aqueous fractions obtained by partition of a crude methanol extract of dried leaves of C. spiralis revealed that AGI activity was confined to the ethyl acetate fraction. Purification of this fraction yielded schaftoside and isoschaftoside. The AGI activities of the two flavones were lower than, but comparable with, that of the anti-diabetic drug acarbose. In contrast, the IC50 value of the ethyl acetate fraction was 1.95-, 2.34-, and 2.22-fold higher than those of acarbose, schaftoside, and isoschaftoside, respectively. The results demonstrate for the first time that schaftoside and isoschaftoside are responsible, in part, for the AGI activity of C. spiralis. Our study suggests that further investigations into C. spiralis may lead to the discovery of additional compounds with antihyperglycemic activity.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Extratos Vegetais
/
Costus
/
Flavonas
/
Inibidores Enzimáticos
/
Alfa-Glucosidases
/
Hipoglicemiantes
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article