Brainard Adam M, Korovkina Victoria P, England Sarah K
University of Iowa Carver College of Medicine, Department of Molecular Physiology and Biophysics, Iowa City, IA 52242, United States.
Semin Cell Dev Biol. 2007 Jun;18(3):332-9. doi: 10.1016/j.semcdb.2007.05.008. Epub 2007 May 24.
Ion channels are effector proteins that mediate uterine excitability throughout gestation. This review will focus primarily on the role of potassium channels in regulating myometrial tone in pregnancy and labor contractions. During gestation, potassium channels maintain the uterus in a state of quiescence by contributing to the resting membrane potential and counteracting contractile stimuli. This review summarizes the current knowledge about the significance of the potassium channels in maintaining a normal gestational period and initiating labor contractions at term.
离子通道是在整个妊娠期介导子宫兴奋性的效应蛋白。本综述将主要关注钾通道在调节妊娠期间子宫肌层张力和分娩宫缩中的作用。在妊娠期,钾通道通过维持静息膜电位并抵消收缩刺激,使子宫保持在静息状态。本综述总结了目前关于钾通道在维持正常妊娠期和足月引发分娩宫缩方面意义的知识。