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Issue 7, 2014
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The action of JAK, SMAD and ERK signal pathways on hepcidin suppression by polysaccharides from Angelica sinensis in rats with iron deficiency anemia

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Abstract

A crude polysaccharide was obtained by water extraction and ethanol precipitation from the root of Angelica sinensis (AS) to investigate its suppressive effect on hepcidin expression in rats with iron deficiency anemia (IDA). In this study, we showed that the Angelica sinensis polysaccharide (ASP) was mainly composed of arabinose, glucose and galactose in a molar ratio of 1 : 2.5 : 7.5, with the molecular weight of 72 900 Da and the sugar content of 95.1%. ASP markedly decreased hepcidin expression by suppressing the expression of JAK1/2, phospho-JAK1/2, phospho-SMAD1/5/8, phospho-ERK1/2, and promoting the expression of SMAD7 in the liver. These findings suggest that ASP can prevent the janus-kinase (JAK), son of mother against decapentaplegic (SMAD) and extracellular signal-regulated kinase (ERK) pathways to down-regulate hepcidin expression in IDA rats, and may be useful for the treatments of diseases induced by hepcidin over-expression.

Graphical abstract: The action of JAK, SMAD and ERK signal pathways on hepcidin suppression by polysaccharides from Angelica sinensis in rats with iron deficiency anemia

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Article information


Submitted
06 Jan 2014
Accepted
27 Feb 2014
First published
03 Mar 2014

Food Funct., 2014,5, 1381-1388
Article type
Paper

The action of JAK, SMAD and ERK signal pathways on hepcidin suppression by polysaccharides from Angelica sinensis in rats with iron deficiency anemia

Y. Zhang, Y. Cheng, N. Wang, Q. Zhang and K. Wang, Food Funct., 2014, 5, 1381
DOI: 10.1039/C4FO00006D

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