Scientific article
English

Low intensity exercise attenuates disease progression and stimulates cell proliferation in the spinal cord of a mouse model with progressive motor neuronopathy

Published inNeuroscience, vol. 152, no. 2, p. 291-295
Publication date2008
Abstract

Physical exercise has been shown to stimulate neurogenesis, increase resistance to brain trauma and disease, improve learning and increase levels of growth factors. We show that low intensity exercise has profound effects on the phenotype of a mouse mutant with progressive motor neuronopathy. These animals normally die at 47 days of age due to motoneuron loss and muscle atrophy. When mice undergo low intensity exercise, their lifespan increased by 74%, they exhibited a decreased loss of motoneurons, improved muscle integrity and a twofold increase in proliferating cells in the spinal cord. The molecular mechanism of neuroprotection may be related to insulin-like-growth factor 1 (IGF-1) since injections of antibodies to IGF-1 abrogated the effects of exercise on the increased life-span. Thus IGF-1 may act as a possible "exercise-induced" neuroprotective factor.

Keywords
  • Analysis of Variance
  • Animals
  • Antibodies/administration & dosage
  • Bromodeoxyuridine/metabolism
  • Cell Count/methods
  • Cell Proliferation
  • Disease Models, Animal
  • Disease Progression
  • Insulin-Like Growth Factor I/immunology
  • Mice
  • Mice, Neurologic Mutants
  • Motor Neuron Disease/mortality/pathology/rehabilitation
  • Motor Neurons/physiology
  • Muscle Fibers, Skeletal/pathology
  • Physical Conditioning, Animal/methods
  • Spinal Cord/pathology
Citation (ISO format)
FERRER-ALCON, M. et al. Low intensity exercise attenuates disease progression and stimulates cell proliferation in the spinal cord of a mouse model with progressive motor neuronopathy. In: Neuroscience, 2008, vol. 152, n° 2, p. 291–295. doi: 10.1016/j.neuroscience.2007.11.058
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
Journal ISSN0306-4522
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