Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity

Obesity is associated with a high prevalence of mood disorders and cognitive dysfunctions in addition to being a significant risk factor for important health complications such as cardiovascular diseases and type 2 diabetes. Identifying the pathophysiological mechanisms underlying these health issue...

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Main Authors: Nathalie eCastanon, Giamal eLuheshi, Sophie eLaye
Format: Article
Language:English
Published: Frontiers Media S.A. 2015-07-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnins.2015.00229/full
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author Nathalie eCastanon
Giamal eLuheshi
Sophie eLaye
author_facet Nathalie eCastanon
Giamal eLuheshi
Sophie eLaye
author_sort Nathalie eCastanon
collection DOAJ
description Obesity is associated with a high prevalence of mood disorders and cognitive dysfunctions in addition to being a significant risk factor for important health complications such as cardiovascular diseases and type 2 diabetes. Identifying the pathophysiological mechanisms underlying these health issues is a major public health challenge. Based on recent findings, from studies conducted on animal models of obesity, it has been proposed that inflammatory processes may participate in both the peripheral and brain disorders associated with the obesity condition including the development of emotional and cognitive alterations. This is supported by the fact that obesity is characterized by peripheral low-grade inflammation, originating from increased adipose tissue mass and/or dysbiosis (changes in gut microbiota environment), both of which contribute to increased susceptibility to immune-mediated diseases. In this review, we provide converging evidence showing that obesity is associated with exacerbated neuroinflammation leading to dysfunction in vulnerable brain regions associated with mood regulation, learning and memory such as the hippocampus. These findings give new insights to the pathophysiological mechanisms contributing to the development of brain disorders in the context of obesity and provide valuable data for introducing new therapeutic strategies for the treatment of neuropsychiatric complications often reported in obese patients.
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spelling doaj.art-a2e142deb02a46ee8f5b34b127a8bd812022-12-21T23:29:12ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2015-07-01910.3389/fnins.2015.00229146137Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesityNathalie eCastanon0Giamal eLuheshi1Sophie eLaye2INRA, University of Bordeaux 2Douglas mental health University InstituteINRA, University of Bordeaux 2Obesity is associated with a high prevalence of mood disorders and cognitive dysfunctions in addition to being a significant risk factor for important health complications such as cardiovascular diseases and type 2 diabetes. Identifying the pathophysiological mechanisms underlying these health issues is a major public health challenge. Based on recent findings, from studies conducted on animal models of obesity, it has been proposed that inflammatory processes may participate in both the peripheral and brain disorders associated with the obesity condition including the development of emotional and cognitive alterations. This is supported by the fact that obesity is characterized by peripheral low-grade inflammation, originating from increased adipose tissue mass and/or dysbiosis (changes in gut microbiota environment), both of which contribute to increased susceptibility to immune-mediated diseases. In this review, we provide converging evidence showing that obesity is associated with exacerbated neuroinflammation leading to dysfunction in vulnerable brain regions associated with mood regulation, learning and memory such as the hippocampus. These findings give new insights to the pathophysiological mechanisms contributing to the development of brain disorders in the context of obesity and provide valuable data for introducing new therapeutic strategies for the treatment of neuropsychiatric complications often reported in obese patients.http://journal.frontiersin.org/Journal/10.3389/fnins.2015.00229/fullAnxietyDepressionInflammationObesityNeuroinflammationmemory impairments
spellingShingle Nathalie eCastanon
Giamal eLuheshi
Sophie eLaye
Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
Frontiers in Neuroscience
Anxiety
Depression
Inflammation
Obesity
Neuroinflammation
memory impairments
title Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
title_full Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
title_fullStr Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
title_full_unstemmed Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
title_short Role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
title_sort role of neuroinflammation in the emotional and cognitive alterations displayed by animal models of obesity
topic Anxiety
Depression
Inflammation
Obesity
Neuroinflammation
memory impairments
url http://journal.frontiersin.org/Journal/10.3389/fnins.2015.00229/full
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AT sophieelaye roleofneuroinflammationintheemotionalandcognitivealterationsdisplayedbyanimalmodelsofobesity