A 39-year-old man with chronic hepatitis, elevated serum ferritin values, and a family history of hemochromatosis.
The patient described is a heterozygote for hemochromatosis, and he has chronic hepatitis C. We have hypothesized that, because of chronic viral hepatitis, he could either have an increase in circulating NTBI or he could have up-regulation of hepatocyte TfR expression, perhaps caused by a viral effect on the IRE of TfR mRNA, or a combination of both. Either could result in an increase of his hepatocellular iron uptake, resulting in a redistribution of his total body iron burden (which is in the range seen for HHC heterozygotes) and, in effect, "concentrating" the iron in his liver, thus simulating homozygous HHC. It is likely that there are interrelationships between hepatic iron concentration, hepatocellular iron metabolism, and chronic viral hepatitis. Understanding of these interrelationships may be important in the understanding of some of the fundamental mechanisms of viral growth and replication and hepatocellular injury. A clearer understanding of these interactions is necessary to diagnose the cause of liver disease accurately in patients such as this one.
Bacon
B R
BR
Department of Internal Medicine, St. Louis University School of Medicine, MO 63110-0250.
Fried
M W
MW
DiBisceglie
A M
AM
D000328:Adult; D001706:Biopsy; D003937:Diagnosis, Differential; D005293:Ferritins / Q000097:blood*; D006432:Hemochromatosis / Q000175:diagnosis / Q000235:genetics*; D006526:Hepatitis C / Q000150:complications / Q000175:diagnosis*; D006521:Hepatitis, Chronic / Q000150:complications / Q000175:diagnosis*; D006579:Heterozygote; D006801:Humans; D008099:Liver / Q000473:pathology; D008297:Male; D015819:Substance Abuse, Intravenous
D005293:Ferritins