Rare Diseases Symptoms Automatic Extraction

Double trouble in hereditary neuropathy: concomitant mutations in the PMP-22 gene and another gene produce novel phenotypes.

[adrenomyeloneuropathy]

Mutations in the peripheral myelin protein 22 (PMP-22) gene are the most common cause of Charcot-Marie-Tooth neuropathy and may rarely occur in combination with other neurogenetic diseases.To characterize 3 families having a mutation in PMP-22 in addition to another neurogenetic disease mutation.Clinical, electrophysiologic, and genetic evaluations were made of 3 families with more than 1 genetic neuromuscular disease.Family members were evaluated in neurogenetic and muscular dystrophy clinics in a university medical center setting.Three unusual families were found: (1) 2 young brothers each having a PMP-22 duplication and a missense mutation in the GJB1 (Connexin-32) gene; (2) a 32-year-old woman having a PMP-22 duplication and a 1000-fold CTG repeat expansion in the DMPK gene (DM1 myotonic dystrophy); and (3) a 39-year-old man with a PMP-22 deletion and a missense mutation in the ABCD1 gene (adrenomyeloneuropathy). The mutations were "additive," causing a more severe phenotype than expected with each individual disease and coinciding with the important impact of each gene on peripheral nerve function.Individuals having 2 separate mutations in neuromuscular disease-related genes may develop unusually severe phenotypes. Neurologists should be alert to this possibility.

Diseases presenting "common cause" symptom

  • achondroplasia
  • acute rheumatic fever
  • adrenomyeloneuropathy
  • allergic bronchopulmonary aspergillosis
  • alpha-thalassemia
  • aniridia
  • aromatase deficiency
  • benign recurrent intrahepatic cholestasis
  • cadasil
  • child syndrome
  • coats disease
  • congenital adrenal hyperplasia
  • congenital toxoplasmosis
  • cushing syndrome
  • erdheim-chester disease
  • esophageal adenocarcinoma
  • esophageal squamous cell carcinoma
  • fabry disease
  • familial hypocalciuric hypercalcemia
  • hydrocephalus with stenosis of the aqueduct of sylvius
  • inclusion body myositis
  • junctional epidermolysis bullosa
  • kabuki syndrome
  • lamellar ichthyosis
  • legionellosis
  • liposarcoma
  • locked-in syndrome
  • malignant atrophic papulosis
  • neonatal adrenoleukodystrophy
  • neuralgic amyotrophy
  • pendred syndrome
  • primary hyperoxaluria type 1
  • pyruvate dehydrogenase deficiency
  • scrub typhus
  • systemic capillary leak syndrome
  • thoracic outlet syndrome
  • typhoid
  • von hippel-lindau disease
  • wiskott-aldrich syndrome
  • zellweger syndrome

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