Transcriptomics

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Absence of the xenobiotic acetylating enzymes NAT1 and NAT2 in mice leads to deregulation of energy metabolism associated with decreased ability to oxidize fatty acids


ABSTRACT: The NAT enzymes are polymorphic xenobiotic metabolizing enzymes that catalyze the transfer of an acetyl moiety from acetyl coenzyme A (acetyl-CoA) to the nitrogen or oxygen atom of primary arylamines, hydrazines, and their N-hydroxylated metabolites. NATs therefore play an important role in the detoxification and/or activation of arylamine drugs and carcinogens. The involvement of acetyl-CoA in energy metabolism suggests that there may be relationships between NAT activity and energy metabolism. Previous studies have suggested a role for NAT2 in insulin sensitivity that is exacerbated on high fat diet, using Nat1 knockout mice. To study mice with no NAT activity at all, we used a Nat1/Nat2 double-KO model, with animals fed either a regular chow or high fat/high sugar diet for 12 weeks. Analysis of basal parameters suggested a decrease in fatty-acid oxidation and hepatic gluconeogenesis. To further evaluate the cause of this, RNA was isolated and processed using Affymetrix Mouse Gene 2.0 microarrays.

ORGANISM(S): Mus musculus

PROVIDER: GSE117597 | GEO | 2018/12/31

REPOSITORIES: GEO

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