LPIN1 and atrial fibrillation: In contrast, adipose-specific LPIN1 overexpression significantly ameliorated alcohol-induced decrease of EWAT adipocyte size (from 35.39 ± 5.33 μm in LPIN1-Tg-PF mice to 20.11 ± 3.46 μm in LPIN1-Tg-AF mice) (Fig. 1B).