Anthocyanins control neuroinflammation and consequent memory dysfunction in mice exposed to lipopolysaccharide.

Abstract:

:Peripheral inflammatory stimuli may activate a brain neuroinflammatory processes with consequences in brain function. The present study investigated if anthocyanins (ANT) consumption was able to prevent the memory loss, the neuronal damage, and the neuroinflammatory processes triggered by the intraperitoneal lipopolysaccharide (LPS) administration. C57BL6 male mice were treated with ANT (30-100 mg/kg by gavage). With a single dose or during 10 days, before be challenged with LPS (250 μg/kg intraperitoneally single administration), a classical inductor of inflammation. The data obtained showed that ANT was able to confer protection against the memory impairment after 10 days of ANT treatment (100 mg/kg). This phytonutrient also prevented the hypothermia episode induced by LPS. Moreover, ANT prevented the increase in protein carbonyl, NOx, and MDA levels in the hippocampus and cerebral cortex (4 and 24 h) in animal challenged with LPS. ANT showed a protective effect on the increase in the pro-inflammatory cytokines content, especially Interleukin (IL)-1β, tumoral necrosis factor-α and on the reduction of IL-10 induced by LPS. ANT 100 mg/kg prevented the infiltration of peripheral immune cells in the hippocampus at 24 h post-LPS administration. In parallel, LPS increased the activity of myeloperoxidase in cortex and hippocampus, and ANT prevented this effect, also reducing microglia (Iba-1) and astrocyte (GFAP) immunoreactivity. Thus, our data support that ANT are a promising therapeutic component against brain disorders associated with process of neuroinflammation. Graphical Abstract ᅟ.

journal_name

Mol Neurobiol

journal_title

Molecular neurobiology

authors

Carvalho FB,Gutierres JM,Bueno A,Agostinho P,Zago AM,Vieira J,Frühauf P,Cechella JL,Nogueira CW,Oliveira SM,Rizzi C,Spanevello RM,Duarte MMF,Duarte T,Dellagostin OA,Andrade CM

doi

10.1007/s12035-016-9900-8

subject

Has Abstract

pub_date

2017-07-01 00:00:00

pages

3350-3367

issue

5

eissn

0893-7648

issn

1559-1182

pii

10.1007/s12035-016-9900-8

journal_volume

54

pub_type

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