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Related Experiment Videos

[Hereditary nephrogenic diabetes insipidus]

D Morin1, Y Ala, R Dumas

  • 1Service de pédiatrie I, hôpital A-de-Villeneuve, CHU, Montpellier, France.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie
|June 1, 1995
PubMed
Summary

Congenital nephrogenic diabetes insipidus (NDI) is a rare inherited kidney disorder. X-linked NDI is caused by mutations in the AVPR2 gene, while autosomal recessive NDI involves aquaporin-2 gene mutations.

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Area of Science:

  • Genetics
  • Molecular Biology
  • Nephrology

Context:

  • Congenital nephrogenic diabetes insipidus (NDI) is a rare inherited kidney disorder.
  • It is characterized by the kidney's inability to concentrate urine in response to vasopressin (AVP).
  • Recent advances have identified genetic underpinnings for different NDI inheritance patterns.

Purpose:

  • To summarize the genetic basis of congenital nephrogenic diabetes insipidus (NDI).
  • To highlight the role of the AVPR2 gene in X-linked NDI.
  • To mention the aquaporin-2 gene's involvement in autosomal recessive NDI.

Summary:

  • X-linked NDI results from mutations in the AVPR2 gene, located on chromosome Xq28.
  • Over 30 mutations, insertions, or deletions in AVPR2 have been identified in families with NDI.

Related Experiment Videos

  • The AVPR2 gene encodes a V2 receptor for vasopressin (AVP), a G protein-coupled receptor.
  • Autosomal recessive NDI has been linked to mutations in the aquaporin-2 gene, which encodes a renal collecting duct water channel.

    • Impact:

    • Advances understanding of NDI's genetic heterogeneity.
    • Provides a basis for genetic counseling and potential therapeutic strategies.
    • Contributes to the broader knowledge of renal water transport mechanisms.