High intake of dietary sucrose induces sexually dimorphic metabolic adaptations in liver and adipose tissue
This data submission reports the effects of 12 weeks supplementaion of 10%w/v sucrose supplied in drinking water on the inguinal white adipose tissue mRNA profiles of male and female mice relative to control groups (littermates that received plain water instead). RNAseq was performed by Novogene and investigators performed all analyses downstream of readcount acquisition. Manuscript abstract: Almost all effective treatments for non-alcoholic fatty liver disease (NAFLD) involve reduction of adiposity, which suggests the metabolic axis between liver and adipose tissue is essential to NAFLD development. Since excessive dietary sugar intake may be an initiating factor for NAFLD, we have characterized the metabolic effects of liquid sucrose intake at concentrations relevant to typical human consumption in mice. We report that sucrose intake induces sexually dimorphic effects in liver, adipose tissue, and the microbiome; differences concordant with steatosis severity. We show that when steatosis is decoupled from impairments in insulin responsiveness, sex is a moderating factor that influences sucrose-driven lipid storage and the contribution of de novo fatty acid synthesis to the overall hepatic triglyceride pool. Our findings provide physiologic insight into how sex influences the regulation of adipose-liver crosstalk and highlight the importance of extrahepatic metabolism in the pathogenesis of diet-induced steatosis and NAFLD. Overall design: Inguinal adipose tissue mRNA profiles of male and female C57BL6/J x C57BL6/N mice after receiving 10%w/v sucrose in their drinking water for 12 weeks beginning at 10 weeks of age (and littermate controls that received water for the same time duration)