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Channelopathy



Channelopathies are diseases caused by disturbed function of ion channel subunits or the proteins that regulate them. These diseases may be either congenital (often resulting from a mutation or mutations in the encoding genes) or acquired (often resulting from autoimmune attack on an ion channel).

Additional recommended knowledge

There are a large number of distinct dysfunctions known to be caused by ion channel mutations. The genes for the construction of ion channels are highly conserved amongst mammals and one condition, hyperkalemic periodic paralysis, was first identified in the descendants of Impressive, a pedigree race horse.

The channelopathies of human skeletal muscle include hyper-, hypo- and normokalemic (high, low and normal potassium blood concentrations) periodic paralysis, myotonia congenita and paramyotonia congenita.

Types

References

  • Robert S. Kass (2005). "The channelopathies: novel insights into molecular and genetic mechanisms of human disease". Journal of Clinical Investigation 115 (8): 1986–1989. PMID 16075038.

Further reading

  • Ashcroft F.M., Ion Channels and Disease. 2000. Academic Press.
  • Hart IK, Waters C, Vincent A, Newland C, Beeson D, Pongs O, Morris C & NewsomDavis J. 1997. Autoantibodies detected to expressed K+ channels are implicated in neuromyotonia. Annals OF Neurology 41(2):238-246 .
  • Lehmann-Horn,F. & Jurkatt-Rott,K. 1999. Voltage-Gated Ion Channels and Hereditary Disease. PHYSIOLOGICAL REVIEWS 79(4).
  • Newsom-Davis J, 1997. Autoantibody-mediated channelopathies at the neuromuscular junction Neuroscientist 3(5):337-346.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Channelopathy". A list of authors is available in Wikipedia.
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