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Mitochondial dysfunction

Ying Zhang, Ya-Ping Zhao, Yuan-Fu Gao, Zhong-Min Fan, Meng-Yuan Liu, Xiao-Yi Cai, Zheng-Kun Xia, Chun-Lin Gao
MicroRNA‑106b (miR‑106b) is reported to correlate closely with skeletal muscle insulin resistance. In the current study the effect of miR‑106b on palmitic acid (PA)‑induced mitochondrial dysfunction and insulin resistance was investigated in C2C12 myotubes via the silencing of miR‑106b. MiR‑106b expression was increased under PA treatment, while miR‑106b loss of function improved insulin sensitivity by upregulating its target mitofusin‑2 (Mfn2) in C2C12 myocytes. Furthermore, miR‑106b loss of function partly improved mitochondrial morphological lesions and increased the levels of mitochondial DNA and intracellular adenosine triphosphate that had been impaired by PA exposure in C2C12 myocytes...
May 2015: Molecular Medicine Reports
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