At the same time, in patients with the concentration of irisin in the blood serum ≥ 6.1 μg/mL, the FLI value and the result of liver elastography were statistically significantly higher than in the group of patients with MASLD and HTN with the concentration of irisin in the blood serum less than 6.1 μg/mL (p = 0.042 and p = 0.034, respectively) (Figure 3). Here, FNDC5 is linked to hypertensive disorder.