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Juvenile hemochromatosis HJV-related revealed by cardiogenic shock

Mounir Filali1, Claire Le Jeunne, Eric Durand

  • 1Département de Génétique Moléculaire, Hôpital Européen Georges Pompidou, Assistance Publique/Hôpitaux de Paris, Paris, France.

Blood Cells, Molecules & Diseases
|August 19, 2004
PubMed

Insights

Juvenile hemochromatosis, a severe genetic disorder, can be caused by HJV gene mutations. Early HJV genetic testing in at-risk youth can prevent fatal cardiac complications.

Area of Science:

  • Genetics
  • Cardiology
  • Endocrinology

Background:

  • Juvenile hemochromatosis is a rare, severe, autosomal recessive genetic disorder.
  • It is characterized by excessive iron accumulation, leading to organ damage.

Observation:

  • A consanguineous family presented with juvenile hemochromatosis linked to a mutation in the HJV gene.
  • The proband died from cardiac complications, while her sister, treated with phlebotomies, avoided severe outcomes.

Findings:

  • Both affected sisters shared a homozygous mutation (Arg288 > Trp) in the HJV gene and an identical homozygous haplotype on chromosome 1q21.
  • This specific HJV mutation is associated with severe, early-onset hemochromatosis.

Implications:

  • Complete HJV gene screening is crucial for early diagnosis in young patients with iron overload, hypogonadism, or cardiac symptoms.
  • Timely diagnosis and treatment, such as phlebotomy, can prevent life-threatening cardiac complications and improve patient outcomes.

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