The effects of short-term high-fat feeding on exercise capacity: Multi-tissue transcriptome changes by RNA sequencing analysis

Ya Xiao, Wanshan Wang, Liguo Chen, Jieyu Chen, Pingping Jiang, Xiuqiong FU, Xiaoli Nie, Hiu Yee KWAN, Yanyan Liu*, Xiaoshan Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Background: The effects of short-term high fat diets on physiology are elusive and the molecular changes following fat overconsumption remain largely unknown. In this study, we aimed to evaluate exercise capacity in mice fed with a high fat diet (HFD) for 3 days and investigate the molecular mechanisms in the early response to high-fat feeding. Methods: Exercise capacity was assessed by weight-loaded swimming test in mice fed a control diet (10 kcal% fat) or a HFD (60 kcal% fat) for 3 days. Global gene expression of ten important tissues (brain, heart, liver, spleen, lung, kidney, stomach, duodenum, skeletal muscle and blood) was analyzed using RNA Sequencing. Results: A HFD for just 3 days can induce 71% decrease of exercise performance prior to substantial weight gain (P <0.01). Principle component analysis revealed that differential gene expression patterns existed in the ten tissues. Out of which, the brain, spleen and lung were demonstrated to have more pronounced transcriptional changes than other tissues. Biological process analysis for differentially expressed genes in the brain, spleen and lung showed that dysregulation of peripheral and central immune response had been implicated in the early stage of HFD exposure. Neurotransmission related genes and circulatory system process related genes were significantly down-regulated in the brain and lung, respectively. Conclusions: Our findings provide new insights for the deleterious effects of high-fat feeding, especially revealing that the lung maybe as a new important target attacked by short-term high-fat feeding.

Original languageEnglish
Article number28
JournalLipids in Health and Disease
Volume16
Issue number1
DOIs
Publication statusPublished - 2 Feb 2017

Scopus Subject Areas

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry, medical

User-Defined Keywords

  • Exercise capacity
  • High-fat feeding
  • Multi-tissue
  • RNA Sequencing
  • Short-term

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