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Cerebrolysin Induces Motor Recovery Along with Plastic Changes in Motoneurons and an Increase in GAP43 Protein in the Ventral Spinal Cord Following a Kainic Acid Excitotoxic Lesion in the Rat Motor Cortex
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Cerebrolysin Induces Motor Recovery Along with Plastic Changes in Motoneurons and an Increase in GAP43 Protein in the Ventral Spinal Cord Following a Kainic Acid Excitotoxic Lesion in the Rat Motor Cortex
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Cerebrolysin Induces Motor Recovery Along with Plastic Changes in Motoneurons and an Increase in GAP43 Protein in the Ventral Spinal Cord Following a Kainic Acid Excitotoxic Lesion in the Rat Motor Cortex
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Journal Article
Cerebrolysin Induces Motor Recovery Along with Plastic Changes in Motoneurons and an Increase in GAP43 Protein in the Ventral Spinal Cord Following a Kainic Acid Excitotoxic Lesion in the Rat Motor Cortex
2025
Overview
Lesions in the motor cortex induced by contusions or pathological insults can exert the degeneration of afferent neurons lying distal to these lesions. Axon degeneration and demyelination are hallmarks of several diseases sharing pathophysiological and clinical characteristics. These conditions are very disabling due to the disruption of motor abilities, with lesions that affect this area proving to be a therapeutic challenge, which has driven increasing efforts to search for treatments. Cerebrolysin (CBL) contains a mix of pig brain-derived peptides with activity similar to neurotrophic factors. Here, the effect of cerebrolysin administration on the motor impairment produced by kainic acid (KA) lesion of the motor cortex was evaluated in Sprague–Dawley female rats (n = 27), defining its effect on motoneurons dendritic tree changes, dendritic spine density and GAP43 presence in the ventral thoracolumbar regions of the spinal cord. Ten days after the KA lesion of the motor cortex, rats were administered cerebrolysin, and their motor performance was evaluated using the “Basso, Beattie, and Bresnahan” (BBB) and Bederson scores. Cerebrolysin administration improved motor activity according to the BBB and Bederson scales, along with increased dendritic intersections and dendritic spine density on motoneurons. There was also a significant increase in GAP43 protein, suggesting that CBL may promote plastic changes through this protein, among others. Hence, this study proposes that cerebrolysin could promote motor recovery following motor cortex lesions by driving neuronal changes and dendritic spine plasticity on motoneurons and an increase in GAP43 protein, along with other mechanisms.
Publisher
Springer US,Springer Nature B.V
Subject
/ Animals
/ Biomedical and Life Sciences
/ Dendritic Spines - drug effects
/ Dendritic Spines - pathology
/ Density
/ Female
/ Lesions
/ Motor Activity - drug effects
/ Motor Neurons - drug effects
/ Neuronal Plasticity - drug effects
/ Neuronal Plasticity - physiology
/ Neuroprotective Agents - pharmacology
/ Peptides
/ Proteins
/ Rats
/ Recovery
/ Recovery of Function - drug effects
/ Recovery of Function - physiology
/ Spine
