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Literature DB >> 4537778

Voltage clamp experiments of single muscle fibers of Rana pipiens.

Abstract

A voltage clamp for single muscle fibers has been developed. Stability of the system was achieved when an artificial node was created by enclosing a single muscle fiber in a petroleum jelly seal which served as an analogue of the myelin sheath. Typical voltage clamp records were obtained with large inward transient currents followed by a delayed rectification of the outward currents. These currents looked qualitatively similar when the transverse tubular system was destroyed. Errors in current measurement, especially those due to anomalous rectification, are discussed.

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Year: 1972 PMID： 4537778 PMCID： PMC2226057 DOI： 10.1085/jgp.60.1.1

Source DB: PubMed Journal: J Gen Physiol ISSN： 0022-1295 Impact factor: 4.086

22 in total

Voltage clamp experiments of single muscle fibers of Rana pipiens.

1. [Qualitative analysis by voltage-clamp of the membrane current of the skeletal muscle fiber].

2. The kinetics of mechanical activation in frog muscle.

3. Predicted delays in the activation of the contractile system.

4. A lesion of the transverse tubules of skeletal muscle.

5. Potentiometric measurement of membrane action potentials in frog muscle fibres.

6. Action potentials without contraction in frog skeletal muscle fibers with disrupted transverse tubules.

7. Membrane currents at large positive internal potentials in single myelinated nerve fibres of Rana pipiens.

8. Frog skeletal muscle fibers: changes in electrical properties after disruption of transverse tubular system.

9. The relation of membrane changes ot contraction in twitch muscle fibres.

10. Actions of some cations on the electrical properties and mechanical threshold of frog sartorius muscle fibers.

1. An improved vaseline gap voltage clamp for skeletal muscle fibers.

2. Ion conductances of the surface and transverse tubular membranes of skeletal muscle.

3. Associative training of Hermissenda.

4. Neural correlates of associative training in Hermissenda.

5. Responses of hair cells to statocyst rotation.

6. Double sucrose-gap method applied to single muscle fiber of Xenopus laevis.