Ex vivo CF diagnosis by intestinal current measurements (ICM) in small aperture, circulating Ussing chambers

Hugo R. De Jonge*, Manfred Ballmann, Henk Veeze, Inez Bronsveld, Frauke Stanke, Burkhard Tümmler, Maarten Sinaasappel

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

57 Citations (Scopus)

Abstract

Intestinal current measurements (ICM) on rectal suction biopsies are a tool for the ex vivo diagnosis of classical and atypical cystic fibrosis (CF). We present the basic ICM protocol, typical tracings and their interpretation. The ICM technique allows the registration of CF-induced changes in electrogenic transepithelial ion transport (Cl-, HCO3-, K+) in a Cl- secretory epithelium, and on the basis of pharmacological criteria, is able to discriminate between CFTR-mediated Cl- secretion and secretion through alternative anion channels. ICM is particularly useful for the classification of individuals with CF-like clinical features with equivocal sweat test values and/or no or one identifiable CFTR mutation.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalJournal of Cystic Fibrosis
Volume3
Issue numberSUPPL. 2
DOIs
Publication statusPublished - Aug 2004
Externally publishedYes

Keywords

  • Chlorides
  • Cystic Fibrosis
  • Cystic Fibrosis Transmembrane Conductance Regulator
  • Humans
  • Intestinal Mucosa
  • Ion Transport
  • Patch-Clamp Techniques
  • Rectum
  • Journal Article
  • Research Support, Non-U.S. Gov't
  • Review

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