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Juvenile, but not adult exposure to high‐fat diet impairs relational memory and hippocampal neurogenesis in mice

Juvenile, but not adult exposure to high‐fat diet impairs relational memory and hippocampal... Increased consumption of high‐fat diet (HFD) leads to obesity and adverse neurocognitive outcomes. Childhood and adolescence are important periods of brain maturation shaping cognitive function. These periods could consequently be particularly sensitive to the detrimental effects of HFD intake. In mice, juvenile and adulthood consumption of HFD induce similar morphometric and metabolic changes. However, only juvenile exposure to HFD abolishes relational memory flexibility, assessed after initial radial‐maze concurrent spatial discrimination learning, and decreases neurogenesis. Our results identify a critical period of development covering adolescence with higher sensitivity to HFD‐induced hippocampal dysfunction at both behavioral and cellular levels. © 2012 Wiley Periodicals, Inc. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Hippocampus Wiley

Juvenile, but not adult exposure to high‐fat diet impairs relational memory and hippocampal neurogenesis in mice

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References (37)

Publisher
Wiley
Copyright
Copyright © 2012 Wiley Periodicals, Inc.
ISSN
1050-9631
eISSN
1098-1063
DOI
10.1002/hipo.22032
pmid
22593080
Publisher site
See Article on Publisher Site

Abstract

Increased consumption of high‐fat diet (HFD) leads to obesity and adverse neurocognitive outcomes. Childhood and adolescence are important periods of brain maturation shaping cognitive function. These periods could consequently be particularly sensitive to the detrimental effects of HFD intake. In mice, juvenile and adulthood consumption of HFD induce similar morphometric and metabolic changes. However, only juvenile exposure to HFD abolishes relational memory flexibility, assessed after initial radial‐maze concurrent spatial discrimination learning, and decreases neurogenesis. Our results identify a critical period of development covering adolescence with higher sensitivity to HFD‐induced hippocampal dysfunction at both behavioral and cellular levels. © 2012 Wiley Periodicals, Inc.

Journal

HippocampusWiley

Published: Nov 1, 2012

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