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Assessment of Human Motoneuron Afterhyperpolarization Duration in Health and Disease

Paper ID Volume ID Publish Year Pages File Format Full-Text
5240 354 2012 19 PDF Available
Title
Assessment of Human Motoneuron Afterhyperpolarization Duration in Health and Disease
Abstract

The results of the investigation of afterhyperpolarization (AHP) duration in normal aging and selected neuromuscular disorders are presented. This investigation yielded unexpected results: the AHP shortening in myogenic disease (DMD) and no significant difference from control values in neurogenic disease (ALS). However, introduction of age factor revealed novel aspects of the human ALS, which can be interpreted on the basis of the results obta-ined in a SOD1 mice, thus confirming usefulness of this animal model of ALS. In spastic patients the AHP was prolonged and the difference from the control AHP duration decre-ased with age and disease duration. Our results suggest that the match between temporal characteristics of the AHP of MN and of the twitch of its muscle unit is preserved during normal aging and in spasticity, but not in the DMD.

Keywords
human motoneurone; afterhyperpolarization; aging; duchenne muscular dystrophy; amyotrophic lateral sclerosis; post-stroke spasticity
First Page Preview
Assessment of Human Motoneuron Afterhyperpolarization Duration in Health and Disease
Publisher
Database: Elsevier - ScienceDirect
Journal: Biocybernetics and Biomedical Engineering - Volume 32, Issue 3, 2012, Pages 43–61
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering