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Updated: Sep 2, 2026

Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane
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X-linked microcephaly, microphthalmia, microcornea, congenital cataract, hypogenitalism, mental deficiency, growth

E Seemanová1, I Lesný

  • 1Department of Clinical Genetics, Charles University Hospital Prague, Motol, Czech Republic.

American Journal of Medical Genetics
|December 11, 1996
PubMed

Insights

A rare X-linked syndrome presents with microcephaly, microphthalmia, and severe developmental delays in affected males. This newly identified genetic disorder also includes spasticity and growth retardation, requiring further investigation.

Area of Science:

  • Genetics
  • Neurology
  • Ophthalmology

Background:

  • The study investigates a rare genetic disorder affecting multiple males within a family.
  • Previous literature has not documented this specific constellation of symptoms as an X-linked syndrome.

Observation:

  • The affected individuals exhibit microcephaly, microphthalmia, microcornea, congenital cataracts, hypogenitalism, severe mental deficiency, progressive spasticity, and growth retardation.
  • Facial features include brachycephaly, upslanting palpebral fissures, epicanthal folds, a highly arched palate, small mouth, and retrognathia.

Findings:

  • Chromosomal and metabolic analyses in the primary case were normal, suggesting a specific genetic mutation.
  • The inheritance pattern points towards an X-linked recessive or X-linked dominant mode of transmission.

Implications:

  • This research identifies a novel X-linked syndrome, expanding the understanding of genetic neurological and ophthalmological disorders.
  • Further research is crucial for genetic mapping, identifying the causative gene, and developing diagnostic tools and potential therapies.

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