Dantrolene: evidence for effects on Na permeability properties of the nodal membrane

1983 ◽  
Vol 39 (7) ◽  
pp. 755-756 ◽  
Author(s):  
J. R. Schwarz ◽  
R. P. Spielmann
Keyword(s):  
Na Permeability ◽  
Nodal Membrane

scholarly journals Oxygen consumption in mouse skeletal muscles stimulated Na-permeability in vitro

1989 ◽  
Vol 49 ◽  
pp. 169
Author(s):  
Hideto Awano ◽  
Tetsuya Hasegawa ◽  
Masakazu Nishimura ◽  
Osamu Yagasaki ◽  
Katsuaki Ito
Keyword(s):  
Oxygen Consumption ◽  
Skeletal Muscles ◽  
Na Permeability

scholarly journals Evidence for reduced Cl- and increased Na+ permeability in cystic fibrosis human primary cell cultures.

1988 ◽  
Vol 405 (1) ◽  
pp. 77-103 ◽  
Author(s):  
R C Boucher ◽  
C U Cotton ◽  
J T Gatzy ◽  
M R Knowles ◽  
J R Yankaskas
Keyword(s):  
Cystic Fibrosis ◽  
Cell Cultures ◽  
Primary Cell ◽  
Primary Cell Cultures ◽  
Na Permeability

AVP dynamically increases paracellular Na+ permeability and transcellular NaCl transport in the medullary thick ascending limb of Henle’s loop

2016 ◽  
Vol 469 (1) ◽  
pp. 149-158 ◽  
Author(s):  
Nina Himmerkus ◽  
Allein Plain ◽  
Rita D. Marques ◽  
Svenja R. Sonntag ◽  
Alexander Paliege ◽  
...  
Keyword(s):  
Thick Ascending Limb ◽  
Nacl Transport ◽  
Medullary Thick Ascending Limb ◽  
Henle's Loop ◽  
Na Permeability

Depolarizing afterpotentials and burst production in molluscan pacemaker neurons

1976 ◽  
Vol 39 (1) ◽  
pp. 153-161 ◽  
Author(s):  
S. H. Thompson ◽  
S. J. Smith
Keyword(s):  
Repetitive Stimulation ◽  
Equilibrium Potential ◽  
Pacemaker Neurons ◽  
Na Permeability

1. Spikes in molluscan bursting cells are followed by depolarizing afterpotentials (DAPs) which are not seen in nonbursting cells in the same ganglia. DAPs from successive spikes sum to provide a depolarizing drive capable of sustaining multiple discharge. 2. Subthreshold depolarization activates a DAP-like process in bursters. 3. DAP amplitude increases as the cell is hyperpolarized beyond the potassium equilibrium potential. The amplitude is not changed by intracellular iontophoresis of TEA-Cl. DAP amplitude is reduced by 39% after a 10-min exposure to CA++-free saline, and by 66% after 10 min in 4% Na+ (Tris substituted) saline. The amplitude is unchanged by exposure to K+-free saline. 4. During repetitive stimulation the amplitude of the summed DAP declines. 5. It is concluded that DAP results from a slowly decaying component of Ca++ and Na+ permeability.

Dual action of aldosterone on toad bladder: Na+ permeability and Na+ pump modulation

1984 ◽  
Vol 246 (4) ◽  
pp. F517-F525 ◽  
Author(s):  
C. S. Park ◽  
I. S. Edelman
Keyword(s):  
Urinary Bladder ◽  
Apical Membrane ◽  
Basolateral Membrane ◽  
Electrical Conductance ◽  
Na Channel ◽  
Metabolic State ◽  
Na Pump ◽  
Na Permeability ◽  
Basolateral Side ◽  
Dual Action

The effects of aldosterone on the functional characteristics of the Na+ entry step across the apical membrane and on the Na+ exit step across the basolateral membrane of the urinary bladder of toads were examined using amiloride and ouabain as probes of the respective surfaces of the cell. Aldosterone stimulated Na+ transport with a concurrent increase in the transepithelial electrical conductance as did two other agents, vasopressin (ADH) and p-chloromercuriphenylsulfonate (PCMPS), primarily active on the apical membrane. Unlike the effects of ADH and PCMPS, however, the effect of aldosterone on Na+ conductance was blocked by actinomycin D and was associated with a decreased sensitivity of the apical Na+ channel to amiloride. In addition, aldosterone increased the sensitivity of the Na+ pump on the basolateral side to ouabain, an effect that was dependent on the metabolic state of the urinary bladder. These results support the inference of coordinate effects on Na+ permeability of the apical membrane and the Na+ pump of the basolateral membrane. Both effects of aldosterone appear to be dependent on the metabolic state of the transporting epithelium.

Regulation of Epithelial Na + Permeability by Protein Kinase C is Tissue Specific

1996 ◽  
Vol 152 (3) ◽  
pp. 207-215 ◽  
Author(s):  
M.L. Chalfant ◽  
J.M. Civan ◽  
K. Peterson-Yantorno ◽  
D.R. DiBona ◽  
T.G. O'Brien
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Tissue Specific ◽  
Kinase C ◽  
Na Permeability

Potassium channels in the nodal membrane of rat myelinated fibres

Nature ◽  
1981 ◽  
Vol 290 (5807) ◽  
pp. 598-600 ◽  
Author(s):  
Ofer Binah ◽  
Yoram Palti
Keyword(s):  
Potassium Channels ◽  
Nodal Membrane ◽  
Myelinated Fibres
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