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Twenty four hour variation of transferrin saturation in treated and untreated hemochromatosis homozygotes

Twenty four hour variation of transferrin saturation in treated and untreated hemochromatosis homozygotes

Journal of Internal Medicine 226(5): 373-380

We studied 43 haemochromatosis homozygotes and seven normal indiviuals to test the hypothesis that there is an almost continuous relative deficiency of apotransferrin in treated and untreated homozygotes. Transferrin saturation was measured at 2-h intervals for 24 h while all subjects ate their usual diet. Subjects with haemochromatosis were separated into four groups based on sex and whether or not they had been iron-depleted. Nineteen treated and 11 untreated male homozygotes had mean transferrin saturation values of 70 and 81%, respectively. Five treated and eight untreated female homozygotes had mean transferrin saturation values of 71 and 69%. Normal subjects had mean transferrin saturation values of 29% (3 males ) and 21% (4 females). These data demonstrate continuously high transferrin saturation values, greater than 69% in most treated and untreated male and female homozygotes, resulting in hepatic iron accumulation of non-transferrin-bound iron from the portal circulation.

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Accession: 007972633

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PMID: 2681514

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