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  • Title: Effect of phlebotomy on lipid metabolism in subjects with hereditary hemochromatosis.
    Author: Casanova-Esteban P, Guiral N, Andrés E, Gonzalvo C, Mateo-Gallego R, Giraldo P, Paramo JA, Civeira F.
    Journal: Metabolism; 2011 Jun; 60(6):830-4. PubMed ID: 20846699.
    Abstract:
    Genetic predisposition to hereditary hemochromatosis (HH) is associated with primary hypertriglyceridemia (HTG). If iron overload influences the development of HTG, the management of these patients could be different. However, the metabolic syndrome in primary HTG is frequent; and it could partially confuse the association. The objective was to determine whether periodic bloodletting could decrease triglyceride concentrations in subjects with HH and iron overload. We retrospectively studied 155 genetically defined HH patients (C282Y homozygotes and compound heterozygotes C282Y/H63D) with iron overload and under periodic therapeutic phlebotomy. Hypertriglyceridemia (triglycerides ≥150 mg/dL) was present in 49 subjects at baseline (31.6%). Phlebotomies significantly decreased triglycerides, especially in subjects with basal HTG (from 287 mg/dL at baseline to 133 mg/dL after phlebotomies, P < .001). Blood glucose and total cholesterol did not change with phlebotomies. The triglyceride-lowering effect was obtained until ferritin concentration decreased to less than 200 μg/L and transferrin saturation to less than 40%. The triglyceride-lowering effect was obtained for glucose levels both less than and greater than 100 mg/dL. In summary, HH subjects frequently have HTG that improves after therapeutic phlebotomy, independently of basal blood glucose. Our results suggest that therapeutic phlebotomy could be a useful therapeutic approach in patients with HTG and iron overload.
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