Protocol to image and analyze the morphology of mouse peripheral nerves using transmission electron microscopy

STAR Protoc. 2022 Aug 1;3(3):101591. doi: 10.1016/j.xpro.2022.101591. eCollection 2022 Sep 16.

Abstract

Morphological analysis of peripheral nerves in mouse models can be used to characterize the pathophysiology of peripheral nerve disease, but obtaining high-quality electron micrographs can be challenging. Here, we present a protocol to obtain electron micrographs of mouse peripheral nerves. We detail the procedures of sampling, fixation, and embedding of peripheral nerves. We then outline the steps for ultrathin sectioning and transmission electron microscopy imaging. Finally, we describe morphological evaluation of nerve fibers in these images using ImageJ and AxonSeg. For complete details on the use and execution of this protocol, please refer to Nakai-Shimoda et al. (2021).

Keywords: Metabolism; Microscopy; Neuroscience.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Histological Techniques* / methods
  • Mice
  • Microscopy, Electron, Transmission
  • Peripheral Nerves* / diagnostic imaging
  • Specimen Handling