SLC16A2 and atrial fibrillation: Expression of Slc16a2 (Mct8) and Slc16a3 (Mct4) was increased >4x in NP over AF cells, and Slc16a2, Slc16a3, Slc16a6 (Mct6), and Slc16a7 (Mct2) transcript levels were higher in NP over FAT cells, with Slc16a2 transcripts being increased by 247x (Figure 8; Table 3).