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[Familial Mediterranean Fever: a case of dominant transmission with variable penetrance]

M Porrello1, C Ciaccio, P Gallerano

  • 1U.O. Pediatria, Azienda Ospedaliera OCR, Sciacca (AG). mporrello@libero.it

La Pediatria Medica E Chirurgica : Medical and Surgical Pediatrics
|April 9, 2004
PubMed

Insights

Familial Mediterranean Fever, typically autosomal recessive, can show dominant transmission. This genetic disorder, caused by MEFV gene mutations, presents with variable penetrance in affected individuals.

Area of Science:

  • Genetics and Molecular Biology
  • Immunology and Inflammation

Background:

  • Familial Mediterranean Fever (FMF) is an inherited autoinflammatory disorder.
  • It predominantly affects individuals of Mediterranean and Middle Eastern descent.
  • FMF is classically inherited in an autosomal recessive pattern, linked to mutations in the MEFV gene.

Observation:

  • FMF is generally inherited in an autosomal recessive pattern.
  • Mutations in the MEFV gene, encoding the pyrin protein, are the underlying cause.
  • This report details an unusual case exhibiting dominant inheritance.

Findings:

  • The identified FMF case demonstrated dominant transmission patterns.
  • Variable penetrance was observed within the affected family.
  • This challenges the typical understanding of FMF inheritance.

Implications:

  • This case expands the known spectrum of FMF inheritance.
  • Understanding variable penetrance is crucial for genetic counseling.
  • Further research into MEFV gene variants and their expression is warranted.

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