Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12933-018-0701-4/MediaObjects/12933_2018_701_Fig1_HTML.gif)
a 120 min non-esterified fatty acid (NEFA) before and after 8-week treatment with liraglutide and metformin. b The difference of NEFA (∆ NEFA) between baseline and after 8-week treatment with liraglutide and metformin *P <0.05 vs the metformin group