title: Ca++ activity in the endolymphatic space.
abstract: We measured Ca++ activity in the different parts of the endolymphatic space by using a double-barrelled electrode with calcium liquid ionic exchanger. In the region of the endolymphatic sac, Ca++ activity (4.7 X 10(-4) M) was much higher than in the cochlear duct (2.7 X 10(-5) M) and semicircular canal (2.6 X 10(-4) M). These findings suggest that Ca++ may also have a significant role in abnormal states.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D003053:Cochlear Duct / Q000378:metabolism; D007758:Ear, Inner / Q000378:metabolism*; D004553:Electric Conductivity; D004712:Endolymphatic Sac / Q000378:metabolism*; D006168:Guinea Pigs; D007473:Ion Channels / Q000378:metabolism* / Q000502:physiology; D008839:Microelectrodes; D012665:Semicircular Canals / Q000378:metabolism
chemical_list: D007473:Ion Channels; D002118:Calcium