1
|
Sirin NG, Oguz Akarsu E, Kocasoy Orhan E, Erbas B, Artug T, Dede HO, Baslo MB, Idrisoglu HA, Oge AE. Parameters derived from compound muscle action potential scan for discriminating amyotrophic lateral sclerosis‐related denervation. Muscle Nerve 2019; 60:400-408. [DOI: 10.1002/mus.26644] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 07/13/2019] [Accepted: 07/16/2019] [Indexed: 12/11/2022]
Affiliation(s)
- N. Gorkem Sirin
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - Emel Oguz Akarsu
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - Elif Kocasoy Orhan
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - Bahar Erbas
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - Tugrul Artug
- Electrical and Electronics EngineeringIstanbul Arel University Istanbul Turkey
| | - H. Ozlem Dede
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - M. Baris Baslo
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - Halil A. Idrisoglu
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| | - A. Emre Oge
- Department of Neurology, Istanbul Faculty of MedicineIstanbul University Istanbul Turkey
| |
Collapse
|
2
|
Wier CG, Crum AE, Reynolds AB, Iyer CC, Chugh D, Palettas MS, Heilman PL, Kline DM, Arnold WD, Kolb SJ. Muscle contractility dysfunction precedes loss of motor unit connectivity in SOD1(G93A) mice. Muscle Nerve 2018; 59:254-262. [PMID: 30370671 DOI: 10.1002/mus.26365] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/17/2018] [Accepted: 10/22/2018] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Electrophysiological measurements are used in longitudinal clinical studies to provide insight into the progression of amyotrophic lateral sclerosis (ALS) and the relationship between muscle weakness and motor unit (MU) degeneration. Here, we used a similar longitudinal approach in the Cu/Zn superoxide dismutase (SOD1[G93A]) mouse model of ALS. METHODS In vivo muscle contractility and MU connectivity assays were assessed longitudinally in SOD1(G93A) and wild type mice from postnatal days 35 to 119. RESULTS In SOD1(G93A) males, muscle contractility was reduced by day 35 and preceded MU loss. Muscle contractility and motor unit reduction were delayed in SOD1(G93A) females compared with males, but, just as with males, muscle contractility reduction preceded MU loss. DISCUSSION The longitudinal contractility and connectivity paradigm employed here provides additional insight into the SOD1(G93A) mouse model and suggests that loss of muscle contractility is an early finding that may precede loss of MUs and motor neuron death. Muscle Nerve 59:254-262, 2019.
Collapse
Affiliation(s)
- Christopher G Wier
- Department of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Alexander E Crum
- Department of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - Anthony B Reynolds
- Department of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Chitra C Iyer
- Department of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - Deepti Chugh
- Department of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - Marilly S Palettas
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, USA
| | - Patrick L Heilman
- Department of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - David M Kline
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, USA
| | - W David Arnold
- Department of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA.,Department of Physical Medicine and Rehabilitation, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.,Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.,Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Stephen J Kolb
- Department of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.,Department of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA
| |
Collapse
|
3
|
Gooch CL. Building a better MUNIX: New and improved, but does it hit the mark? Muscle Nerve 2018; 58:330-331. [PMID: 29742792 DOI: 10.1002/mus.26163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 04/18/2018] [Accepted: 05/05/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Clifton L Gooch
- Department of Neurology, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Boulevard, MDC 55, Tampa, Florida, 33612-4799, USA
| |
Collapse
|