A Technique for Performing Electrical Impedance Myography in the Mouse Hind Limb: Data in Normal and ALS SOD1 G93A Animals
Name
Li-2012-A Technique for Perf.pdf
Size
1017.31 KB
Format
Adobe PDF
Checksum (MD5)
79f3304e239b860aa6d1acfa03394601
Author(s)
Staats, Wayne Lawrence
Li, Jia
Spieker, Andrew
Sung, Minhee
Rutkove, Seward B.
Date Issued
September 2012
Journal
PLoS ONE
Publisher
Public Library of Science
Citation
Li, Jia et al. “A Technique for Performing Electrical Impedance Myography in the Mouse Hind Limb: Data in Normal and ALS SOD1 G93A Animals.” Ed. David R. Borchelt. PLoS ONE 7.9 (2012): e45004.
Version
Author's final manuscript
Abstract
Objective:
To test a method for performing electrical impedance myography (EIM) in the mouse hind limb for the assessment of disease status in neuromuscular disease models.
Methods:
An impedance measuring device consisting of a frame with electrodes embedded within an acrylic head was developed. The head was rotatable such that data longitudinal and transverse to the major muscle fiber direction could be obtained. EIM measurements were made with this device on 16 healthy mice and 14 amyotrophic lateral sclerosis (ALS) animals. Repeatability was assessed in both groups.
Results:
The technique was easy to perform and provided good repeatability in both healthy and ALS animals, with intra-session repeatability (mean ± SEM) of 5% ±1% and 12% ±2%, respectively. Significant differences between healthy and ALS animals were also identified (e.g., longitudinal mean 50 kHz phase was 18±0.6° for the healthy animals and 14±1.0° for the ALS animals, p = 0.0025).
Conclusions:
With this simple device, the EIM data obtained is highly repeatable and can differentiate healthy from ALS animals.
Significance:
EIM can now be applied to mouse models of neuromuscular disease to assess disease status and the effects of therapy.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1371/journal.pone.0045004
