FNDC5 and hypertensive disorder: As reference values for serum myokine concentrations are currently lacking, to compare the groups of patients with MASLD and HTN depending on the serum concentrations of myostatin and irisin, the modes of serum concentrations of myostatin and irisin, which were 4.98 ng/mL and 6.1 μg/mL, respectively, were set as the threshold values for these parameters.