Premium
The retinal pigment epithelium controls the potassium activity in the subretinal space
Author(s) -
Cour M.
Publication year - 1985
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1985.tb06827.x
Subject(s) - retinal pigment epithelium , potassium , pigment , retinal , epithelium , retina , chemistry , intracellular , biophysics , anatomy , biology , biochemistry , neuroscience , organic chemistry , genetics
The potassium transport of the isolated retinal pigment epithelium from bullfrogs was studied using micropuncture with double barrelled ionselective micro‐electrodes. Transient changes in intracellular values of electrical potential and potassium activity were monitored in response to abrupt changes in the K + concentration on the retinal side of the tissue. It is shown, that the transport of potassium in the pigment epithelium depends on the K + concentration on the retinal side of the tissue in such a way as to keep variations in this concentration at a minimum.