Effect of external K+ concentration on transmembrane potentials of rabbit thyroid cells
- 31 October 1966
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 211 (5) , 1171-1174
- https://doi.org/10.1152/ajplegacy.1966.211.5.1171
Abstract
The effect of extracellular K+ concentration on the transmembrane potential of the perfused rabbit thyroid was studied. The normal thyroid membrane potential was found to be -43 mv. The membrane potential varied with [K+]q about in the same manner as found in other tissues, and the data are well approximated by the Goldman equation. However, the extrapolated intracellular [K+] is only about 85 m[image], a value substantially lower than measured [K+]i'' s. The ratio, PK/PNa is estimated to be about 0.1.This publication has 5 references indexed in Scilit:
- Transport of Iodide and Other Anions in the Thyroid GlandPhysiological Reviews, 1964
- Electrical properties of thyroid follicles in normal and thyrotropin-injected frogs and in premetamorphic and metamorphic tadpolesGeneral and Comparative Endocrinology, 1963
- The effect of internal and external potassium concentration on the membrane potential of frog muscleThe Journal of Physiology, 1956
- The potassium permeability of a giant nerve fibreThe Journal of Physiology, 1955
- THE IODIDE CONCENTRATING MECHANISM OF THE RAT THYROID AND ITS INHIBITION BY THIOCYANATE1Endocrinology, 1947