SERPINE1 and type 2 diabetes mellitus: Additionally, BF‐ and BF EV‐transplantation significantly upregulated serum Serpine1 levels in T2D mice (BF: 1.06‐fold, 106.6 pg ml−1 vs 113.5 pg ml−1); BF EV: 1.10‐fold, 106.6 pg ml−1 vs 117.0 pg ml−1; Figure 5O).