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Longitudinal analysis of hepatic transcriptome and serum metabolome demonstrates altered lipid metabolism following the onset of hyperglycemia in spontaneously diabetic BioBreeding rats

Author:
  • Simon E. Regnell
  • Martin J Hessner
  • Shuang Jia
  • Lina Åkesson
  • Hans Stenlund
  • Thomas Moritz
  • Daria La Torre
  • Åke Lernmark
Publishing year: 2017-02-01
Language: English
Publication/Series: PLoS ONE
Volume: 12
Issue: 2
Document type: Journal article
Publisher: Public Library of Science

Abstract english

Type 1 diabetes is associated with abberations of fat metabolism before and after the clinical onset of disease. It has been hypothesized that the absence of the effect of insulin in the liver contributes to reduced hepatic fat synthesis. We measured hepatic gene expression and serum metabolites before and after the onset of hyperglycemia in a BioBreeding rat model of type 1 diabetes. Functional pathway annotation identified that lipid metabolism was differentially expressed in hyperglycemic rats and that these pathways significantly overlapped with genes regulated by insulin. 17 serum metabolites significantly changed in concentration. All but 2 of the identified metabolites had previously been reported in type 1 diabetes, and carbohydrates were overall the most upregulated class of metabolites. We conclude that lack of insulin in the liver contributes to the changes in fat metabolism observed in type 1 diabetes. Further studies are needed to understand the clinical consequences of a lack of insulin in the liver in patients with type 1 diabetes.

Keywords

  • Endocrinology and Diabetes

Other

Published
  • Diabetes and Celiac Unit
  • ISSN: 1932-6203
E-mail: ake [dot] lernmark [at] med [dot] lu [dot] se

Principal investigator

Diabetes and Celiac Unit

+46 40 39 19 01

+46 70 616 47 79

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Jan Waldenströms gata 35, Malmö

33

Lund University Diabetes Centre, CRC, SUS Malmö, Jan Waldenströms gata 35, House 91:12. SE-214 28 Malmö. Telephone: +46 40 39 10 00