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FALL IN THESHOLD TO ELECTRICAL EXCITATION OF X-IRRADIATED ISOLATED FROG NERVE

Journal Article · · Intern. J. Radiation Biol.
OSTI ID:4712137
Monophasic action-potentials were recorded in isolated frog sciatic nerves in a humid chamber; constant electric stimuli were given in each experiment at a regular rate of between 12 and 30 stimuli per minute. Preparations were irradiated with 50 kv x rays delivered at a rate of 67 krad/ maximal action-potentials showed an increase of size within 2 sec of commencement of irradiation, and the increase persisted for at least 15 min after the end of the irradiation. The increase was caused by a fall in threshold of the axons in the nerve trunk. However, irradiation did not affect the size of maximal action- potentials, did not produce any gross change of shape in the action-potentials, and did not allow ephaptic transmission between adjacent axons in the nerve trunk. (auth)
Research Organization:
Royal Cancer Hospital, London
NSA Number:
NSA-17-010417
OSTI ID:
4712137
Journal Information:
Intern. J. Radiation Biol., Journal Name: Intern. J. Radiation Biol. Vol. Vol: 5
Country of Publication:
Country unknown/Code not available
Language:
English

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