alexa Respiration and parturition affected by conditional overexpression of the Ca2+-activated K+ channel subunit, SK3.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Bond CT, Sprengel R, Bissonnette JM, Kaufmann WA, Pribnow D,

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Abstract In excitable cells, small-conductance Ca2+-activated potassium channels (SK channels) are responsible for the slow after-hyperpolarization that often follows an action potential. Three SK channel subunits have been molecularly characterized. The SK3 gene was targeted by homologous recombination for the insertion of a gene switch that permitted experimental regulation of SK3 expression while retaining normal SK3 promoter function. An absence of SK3 did not present overt phenotypic consequences. However, SK3 overexpression induced abnormal respiratory responses to hypoxia and compromised parturition. Both conditions were corrected by silencing the gene. The results implicate SK3 channels as potential therapeutic targets for disorders such as sleep apnea or sudden infant death syndrome and for regulating uterine contractions during labor.
This article was published in Science and referenced in Journal of Addiction Research & Therapy

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