Читать книгу Neurobiology For Dummies - Frank Amthor - Страница 77

Although phospholipid plasma membranes have some limited permeability to water, we know that in many neurons water channels called aquaporins control much of this movement. Aquaporin channels in the membrane tend to equilibrate water between the cytoplasm and extracellular fluid. In addition, aquaporin channels can be up or down regulated over longer time scales. Aquaporin channel deficiencies are involved in some types of diabetes.