Autor(es):
Marques, Thiago Henrique Costa ; Santos, Pauline Sousa dos ; Freitas, Rivelilson Mendes de ; Carvalho, Rusbene Bruno Fonseca de ; Melo, Cassio Herbert Santos de ; David, Juceni Pereira de Lima ; David, Jorge Mauricio ; Lima, Luciano Silva ; Marques, Thiago Henrique Costa ; Santos, Pauline Sousa dos ; Freitas, Rivelilson Mendes de ; Carvalho, Rusbene Bruno Fonseca de ; Melo, Cassio Herbert Santos de ; David, Juceni Pereira de Lima ; David, Jorge Mauricio ; Lima, Luciano Silva
Data: 2014
Origem: Oasisbr
Assunto(s): Anticholinesterase activity; B. perennis; Isorhamnetin 3-O-β-D-(6''-acetyl)-galactopyranoside
Descrição
p. 549-553
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This work describes the isolation of an active flavonoid fraction and identification of isorhamnetin 3-O-β-D-(6''-acetyl)-galactopyranoside from flowers of B. perennis, and also the evaluation of anticholinesterase (AChE) activity of ethanolic extract from flowers (EEF) and the active fraction. The chemical structure of the flavonoid was defined on the basis of spectroscopic 1H NMR, IR and UV data. EEF or flavonoid reduces AChE activity in vivo, while flavonoid also reduces AChE activity in vitro, showing a value of 1.49 mM for 50% inhibitory concentration (IC50), suggesting potential use as an insecticide or in the treatment of neurodegenerative diseases such as Alzheimer's disease.
