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- Title
Changes in the levels of activity of spinal neurons after long-lasting vibrational stimulation of the shin muscles in rats.
- Authors
Pilyavskii, A.; Maznychenko, A.; Maiskii, V.; Korneyev, V.; Kostyukov, A.
- Abstract
Vibrational stimulation of the tendon of the mm.gastrocnemius+soleus (100 sec) in rats anesthetized with chloral hydrate (400 mg/kg) resulted in the appearance of considerable Fos immunoreactivity in the lumbar spinal cord ( L1-L6), as compared with that in intact animals. Total densities of Fos-immunopositive (Fos-ip) neurons in each of the examined segments were higher than 40 units per 40-μm-thick slice; the respective index reached the maximum at the L4 level (78.9 ± 2.3 cells). Most Fos-ip neurons were localized in laminae 4 to 7 of the gray matter, both ipsi- and contralaterally with respect to the side of stimulation (28.5 ± 0.6 and 28.4 ± 0.6, respectively). Single Fos-ip motoneurons were found bilaterally in the ventral horn motor nuclei. Thus, activation of muscle spindle receptors induced by vibrational stimulation applied to the Achilles tendon induces noticeable bilateral c-fos expression in spinal neuronal networks related to transmission of proprioceptive muscle-born impulsation.
- Subjects
NEURAL stimulation; GENE expression; BIOLOGICAL neural networks; ACHILLES tendon; NERVOUS system
- Publication
Neurophysiology, 2011, Vol 43, Issue 3, p240
- ISSN
0090-2977
- Publication type
Article
- DOI
10.1007/s11062-011-9217-1