JoVE Logo

Sign In

A subscription to JoVE is required to view this content. Sign in or start your free trial.

Abstract

Neuroscience

Combining Imaging and Electrophysiology to Visualize and Record Spreading Depolarizations in Mice

Published: October 4th, 2024

DOI:

10.3791/67032

1Department of Neurosciences and The Center for Brain Recovery and Repair, University of New Mexico School of Medicine

* These authors contributed equally

Abstract

Spreading Depolarizations (SDs) are massive events in the brain that often go undetected due to their slow propagation through gray matter. Because SD detection can be elusive, it is optimally confirmed using multiple methods. This protocol describes methods for combining imaging and electrophysiology to detect SDs in a manner that most laboratories can reliably and easily adopt. SDs occur following traumatic brain injuries, stroke, subarachnoid hemorrhages, ischemia, and migraine aura. Historically, SDs have been recorded using DC amplifiers, which can resolve the slow extracellular shift and the depression in high-frequency activity. However, DC amplifiers are nearly impossible to use for chronic in vivo recordings. This protocol employs a common AC amplifier for in vivo electrophysiology recordings to confirm high-frequency depression, along with non-invasive imaging necessary to detect the propagating wave of SD. These methods can be reliably adopted and/or modified for most experimental approaches to confirm the presence or absence of SDs following brain injury.

Explore More Videos

Spreading Depolarizations

This article has been published

Video Coming Soon

JoVE Logo

Privacy

Terms of Use

Policies

Research

Education

ABOUT JoVE

Copyright © 2024 MyJoVE Corporation. All rights reserved