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Iron in liver diseases other than hemochromatosis

H L Bonkovsky1, B F Banner, R W Lambrecht

  • 1Department of Medicine, University of Massachusetts Medical Center, Worcester 01655, USA.

Seminars in Liver Disease
|February 1, 1996
PubMed

Insights

Excessive iron in the liver, even at normal levels, can cause damage, especially with other toxins. This research suggests ending indiscriminate iron supplementation and revisiting bloodletting for iron depletion.

Area of Science:

  • Hepatology
  • Toxicology
  • Immunology

Background:

  • Growing evidence suggests that even normal or mildly elevated liver iron can be harmful.
  • Iron toxicity is exacerbated by co-factors like alcohol, certain drugs, and viral hepatitis.

Purpose of the Study:

  • To review the detrimental effects of iron accumulation in the liver.
  • To advocate for a reevaluation of iron supplementation practices and explore therapeutic phlebotomy.

Main Methods:

  • Literature review of studies on iron metabolism and liver disease.
  • Analysis of iron's role in hepatic injury and carcinogenesis.
  • Examination of historical and current therapeutic approaches for iron overload.

Main Results:

  • Iron enhances microbial pathogenicity and impairs immune cell function (macrophages, lymphocytes).
  • Iron promotes fibrogenic pathways, increasing hepatic injury.
  • Iron acts as a co-carcinogen or promoter for hepatocellular carcinoma, even without pre-existing liver conditions.

Conclusions:

  • Indiscriminate iron supplementation should cease due to potential harm.
  • Therapeutic phlebotomy (bloodletting) is a viable and beneficial treatment for iron depletion.
  • Understanding iron's toxicity supports a shift in clinical practice towards cautious iron management.

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