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Literature DB >> 5937413

Cation movements in perfused giant axons.

Abstract

1. The net movements of Na and K into resting squid giant axons perfused with a K(2)SO(4) artificial axoplasm have been determined. Na enters at a rate of 131 +/- 25 p-mole/cm(2).sec. The K leakage from the fibre is 942 +/- 566 p-mole/cm(2).sec; clearly this latter figure shows how large is the uncertainty in the exact value for the potassium leakage.2. The net entry of sodium associated with activity in such fibres has been measured and is 5.7 +/- 0.7 p-mole/cm(2).impulse.

Entities: Chemical

Mesh：

Substances：
Ions
Sodium
Potassium

Year: 1966 PMID： 5937413 PMCID： PMC1357466 DOI： 10.1113/jphysiol.1966.sp007819

Source DB: PubMed Journal: J Physiol ISSN： 0022-3751 Impact factor: 5.182

11 in total

1. EFFECTS OF VARIOUS POTASSIUM SALTS AND PROTEASES UPON EXCITABILITY OF INTRACELLULARLY PERFUSED SQUID GIANT AXONS.

Authors: I TASAKI; T TAKENAKA
Journal: Proc Natl Acad Sci U S A Date: 1964-09 Impact factor: 11.205

2. Active transport of cations in giant axons from Sepia and Loligo.

Authors: A L HODGKIN; R D KEYNES
Journal: J Physiol Date: 1955-04-28 Impact factor: 5.182

3. Replacement of the axoplasm of giant nerve fibres with artificial solutions.

Authors: P F BAKER; A L HODGKIN; T I SHAW
Journal: J Physiol Date: 1962-11 Impact factor: 5.182

4. The effects of changes in internal ionic concentrations on the electrical properties of perfused giant axons.

Authors: P F BAKER; A L HODGKIN; T I SHAW
Journal: J Physiol Date: 1962-11 Impact factor: 5.182

5. The effects of injecting 'energy-rich' phosphate compounds on the active transport of ions in the giant axons of Loligo.

Authors: P C CALDWELL; A L HODGKIN; R D KEYNES; T L SHAW
Journal: J Physiol Date: 1960-07 Impact factor: 5.182

3. Sodium entry during action potentials of mammalian neurons: incomplete inactivation and reduced metabolic efficiency in fast-spiking neurons.

Authors: Brett C Carter; Bruce P Bean
Journal: Neuron Date: 2009-12-24 Impact factor: 17.173

Cation movements in perfused giant axons.

1. EFFECTS OF VARIOUS POTASSIUM SALTS AND PROTEASES UPON EXCITABILITY OF INTRACELLULARLY PERFUSED SQUID GIANT AXONS.

2. Active transport of cations in giant axons from Sepia and Loligo.

3. Replacement of the axoplasm of giant nerve fibres with artificial solutions.

4. The effects of changes in internal ionic concentrations on the electrical properties of perfused giant axons.

5. The effects of injecting 'energy-rich' phosphate compounds on the active transport of ions in the giant axons of Loligo.

6. The ionic movements during nervous activity.

7. The sodium and potassium content of cephalopod nerve fibers.

8. Studies on permeability in relation to nerve function, ionic movements across exonal membranes.

9. Kinetics of ion movement in the squid giant axon.

10. Electronic measurement of the intracellular concentration and net flux of sodium in the squid axon.

1. The temperature dependence of the movement of sodium ions associated with nerve impulses.

2. Time course of the sodium permeability change during a single membrane action potential.

3. Sodium entry during action potentials of mammalian neurons: incomplete inactivation and reduced metabolic efficiency in fast-spiking neurons.

4. Sodium transport by perfused giant axons of Loligo.

5. Sodium extrusion by internally dialyzed squid axons.

6. Sodium movements in perfused squid giant axons. Passive fluxes.