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In vivo structure of frog sciatic nerve myelin membranes: An x-ray diffraction study at 13Å resolution

✍ Scribed by Raúual Padróoan; L. Mateu

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 604 KB
Volume: 6
Category: Article
ISSN: 0360-4012
DOI: 10.1002/jnr.490060212

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✦ Synopsis

Abstract

The x‐ray diffraction pattern of myelin membranes from a frog sciatic nerve was recorded in vivo at 13 äAR resolution using a new experimental technique recently developed in our laboratory. The electron density profile was determined for the myelin membranes first in vivo and then, after elimination of the intraneural blood microcirculation, by transection of the nerve. The small structural differences observed between these conditions were statistically nonsignificant (at 95% confidence level). In addition, our results show that the stacking disorder that is present in the myelin membranes of freshly dissected frog sciatics is also characteristic of the myelin sheath in vivo.

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The effect of the repetitive propagation of action potentials on the structure of toad sciatic nerve myelin membranes: An X-ray diffraction study at 11 Å resolution

✍ Raúl Padrón; L. Mateu 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 562 KB

## Abstract Equatorial sections of the x‐ray diffraction patterns of myelin from toad sciatic nerves recorded at 11 Å resolution during long supramaximal repetitive stimulation (240 Hz for two hours) were used to calculate the relative electron density profile of the myelin membranes in this physio