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http://purl.uniprot.org/citations/18317596http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/18317596http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/18317596http://www.w3.org/2000/01/rdf-schema#comment"Hyperkalemic periodic paralysis (HyperKPP) produces myotonia and attacks of muscle weakness triggered by rest after exercise or by K+ ingestion. We introduced a missense substitution corresponding to a human familial HyperKPP mutation (Met1592Val) into the mouse gene encoding the skeletal muscle voltage-gated Na+ channel NaV1.4. Mice heterozygous for this mutation exhibited prominent myotonia at rest and muscle fiber-type switching to a more oxidative phenotype compared with controls. Isolated mutant extensor digitorum longus muscles were abnormally sensitive to the Na+/K+ pump inhibitor ouabain and exhibited age-dependent changes, including delayed relaxation and altered generation of tetanic force. Moreover, rapid and sustained weakness of isolated mutant muscles was induced when the extracellular K+ concentration was increased from 4 mM to 10 mM, a level observed in the muscle interstitium of humans during exercise. Mutant muscle recovered from stimulation-induced fatigue more slowly than did control muscle, and the extent of recovery was decreased in the presence of high extracellular K+ levels. These findings demonstrate that expression of the Met1592ValNa+ channel in mouse muscle is sufficient to produce important features of HyperKPP, including myotonia, K+-sensitive paralysis, and susceptibility to delayed weakness during recovery from fatigue."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.org/dc/terms/identifier"doi:10.1172/jci32638"xsd:string
http://purl.uniprot.org/citations/18317596http://purl.org/dc/terms/identifier"doi:10.1172/jci32638"xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Kim J.S."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Kim J.S."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Kim J.W."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Kim J.W."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Zhou H."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Zhou H."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Brown R.H. Jr."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Brown R.H. Jr."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Hoffman E.P."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Hoffman E.P."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Lee M.Y."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Lee M.Y."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Matsuda C."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Matsuda C."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Misra K."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Misra K."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Cannon S.C."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Cannon S.C."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Cros D."xsd:string
http://purl.uniprot.org/citations/18317596http://purl.uniprot.org/core/author"Cros D."xsd:string