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Changes in Serum Lipid Concentrations during Iron Depletion and after Iron Supplementation

Address correspondence to Soo Hwan Pai, M.D., Department of Clinical Pathology, Inha University Hospital, 7-206, 3-ga, Shinheung-dong, Jung-gu, Inchon, 400-103, South Korea; tel 82 32 890 2502; fax 82 32 890 2529; e-mail shpaimd{at}inha.ac.kr.

To investigate the effects of body iron depletion and iron supplementation on serum lipid concentrations, hematologic indices, iron markers, and serum lipid profiles were measured in 427 girls, age 14–19 yr. There were no significant differences in serum lipid concentrations between subjects with moderate iron deficiency anemia (blood Hb <12.0 g/dL) and healthy controls. However, serum total cholesterol concentration (mean ± SD, 148 ± 16 mg/dL) in severely anemic subjects with blood Hb <8.0 g/dL was significantly lower than in subjects with blood Hb 14.0 g/dL (170 ± 17 mg/dL) (p <0.01). Moreover, serum triglyceride concentration in subjects with blood Hb >14.0 g/dL was 2-fold higher than in the severely anemic subjects. Mean values of serum total cholesterol and triglyceride (149 ± 17 mg/dL and 58 ± 22 mg/dL) in girls with severe anemia were significantly elevated after iron supplementation (164 ± 17 mg/dL and 98 ± 26 mg/dL) (p <0.01, respectively). In the severely anemic subjects, blood Hb concentration was correlated with serum total cholesterol (r = 0.49, p <0.01) and triglyceride concentrations (r = 0.51, p <0.01). These findings indicate that severe iron deficiency anemia in girls is attended by decreased concentrations of serum total cholesterol and triglyceride, and that these reduced serum lipid levels return to normal following iron supplementation.

Keywords: iron deficiency, iron supplementation, serum cholesterol, serum triglyceride, serum lipid profiles

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