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Hereditary fructose intolerance

M Ali1, P Rellos, T M Cox

  • 1University of Cambridge, Department of Medicine, Addenbrooke's Hospital, UK.

Journal of Medical Genetics
|June 4, 1998
PubMed
Summary
This summary is machine-generated.

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Hereditary fructose intolerance (HFI) is a genetic disorder caused by aldolase B deficiency. Early diagnosis and dietary management of fructose and sucrose intake are crucial for preventing severe health complications.

Area of Science:

  • Biochemistry
  • Genetics
  • Molecular Biology

Background:

  • Hereditary fructose intolerance (HFI) results from aldolase B deficiency, an enzyme crucial for fructose metabolism.
  • Affected individuals experience severe symptoms, including hypoglycemia and organ damage, upon ingesting fructose and related sugars.

Purpose of the Study:

  • To review the biochemical, genetic, and molecular basis of aldolase B deficiency in HFI.
  • To highlight the importance of dietary management in preventing disease manifestations.

Main Methods:

  • Genetic analysis for aldolase B gene mutations.
  • Review of clinical phenotypes and population genetics.

Main Results:

  • Genetic diagnosis of HFI is facilitated by detecting mutations in the aldolase B gene.

Related Experiment Videos

  • Disease severity is not directly correlated with specific aldolase B gene mutations identified.
  • A significant carrier frequency (1.3%) of the A149P allele exists in the UK population, indicating limited negative selection.

    • Conclusions:

    • HFI is a preventable genetic disorder through strict dietary therapy.
    • Increasing sugar consumption contributes to the recognition of HFI as a nutritional disease.
    • Clinical expression is influenced by nutritional factors, age, and cultural habits.