Besides, men and women with MetS showed lower levels of the transferrin receptor (μg/mL) than no MetS subjects (mean ± SD = 4.8 ± 2.1 versus 5.8 ± 1.0, p < 0.03; 6.0 ± 1.8 versus 7.2 ± 2.9, p < 0.004, respectively). The gene discussed is TFRC; the disease is metabolic syndrome.