Abstract

Lipids stored in skeletal muscle cells are known as intramyocellular lipid (IMCL). Disorders involving IMCL and its causative factor, circulatory free fatty acids (FFAs), induce a toxic state and ultimately result in insulin resistance (IR) in muscle tissue. On the other hand, intramuscular triglyceride (IMTG), the most abundant component of IMCL and an essential energy source for active skeletal muscle, is different from other IMCLs, as it is stored in lipid droplets and plays a pivotal role in skeletal muscle energy homeostasis. This review discusses the association of FFA-induced ectopic lipid accumulation and IR, with specific emphasis on the relationship between IMCL/IMTG metabolism and IR.

Details

Title
Skeletal intramyocellular lipid metabolism and insulin resistance
Author
Li, Yiran 1 ; Xu Shimeng 2 ; Zhang, Xuelin 3 ; Zongchun, Yi 4 ; Cichello, Simon 5 

 Beihang University, Department of Biological Science and Biotechnology, School of Biological Science and Medical Engineering, Beijing, China (GRID:grid.64939.31) (ISNI:0000000099991211); Chinese Academy of Sciences, National Laboratory of Biomacromolecules, Institute of Biophysics, Beijing, China (GRID:grid.9227.e) (ISNI:0000000119573309) 
 Chinese Academy of Sciences, National Laboratory of Biomacromolecules, Institute of Biophysics, Beijing, China (GRID:grid.9227.e) (ISNI:0000000119573309); University of Chinese Academy of Sciences, Beijing, China (GRID:grid.410726.6) (ISNI:0000000417978419) 
 Capital University of Physical Education and Sport, Beijing, China (GRID:grid.440659.a) 
 Beihang University, Department of Biological Science and Biotechnology, School of Biological Science and Medical Engineering, Beijing, China (GRID:grid.64939.31) (ISNI:0000000099991211) 
 La Trobe University, School of Life Sciences, Melbourne, Australia (GRID:grid.1018.8) (ISNI:0000000123420938) 
Pages
90-98
Publication year
2015
Publication date
Oct 2015
Publisher
Institute of Biophysics
ISSN
23643439
e-ISSN
23643420
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2404291513
Copyright
© The Author(s) 2015. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.