Transcriptomics

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Comparison of hepatic gene expression between short-term calorie restricted wild-type and Dgat1 deficient middle-aged female mice


ABSTRACT: Leanness is associated with increased lifespan and is linked to favorable metabolic conditions promoting life extension. We show here that deficiency of the lipid synthesis enzyme acyl CoA:diacylglycerol acyltransferase 1 (DGAT1), which reduces body fat in mice, promotes longevity. Female DGAT1-deficient mice were protected from age-related increases in body fat, non-adipose tissue triglycerides, and markers of inflammation in white adipose tissue. These metabolic changes were accompanied by an increased mean and maximal lifespan of ~25% and ~10%, respectively. The gene expression profile of DGAT1-deficient mice was not highly correlated with calorie restriction of sex and age matched wild-type littermates. Our findings indicate that loss of DGAT1-mediated lipid synthesis results in leanness, protects against age-related metabolic consequences, and thus extends longevity.

ORGANISM(S): Mus musculus

PROVIDER: GSE26267 | GEO | 2012/02/09

SECONDARY ACCESSION(S): PRJNA134961

REPOSITORIES: GEO

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