ArticleExperimental animals2024
Myelin lesion in the aspartoacylase (Aspa) knockout rat, an animal model for Canavan disease.
Article in Experimental animals, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors at 2 institutions in 1 country.
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Abstract
Canavan disease (CD) is a fatal hereditary neurological disorder caused by a mutation in the aspartoacylase (ASPA) gene and characterized by neurological signs and vacuolation in the central nervous system (CNS). The mutation inhibits the hydrolysis of N-acetyl-aspartate (NAA) resulting in accumulation of NAA in the CNS. A new Aspa-knockout rat was generated by transcription activator-like effector nuclease (TALEN) technology. Herein we describe the pathological and morphometrical findings in the brain and spinal cords of Aspa-knockout rats. Although Aspa-knockout rats did not show any neurological signs, vacuolation with swollen axons, hypomyelination, and activated swollen astrocytes were observed mainly in the brainstem reticular formation, ascending and descending motor neuron pathway, and in the olfactory tract. Morphometrical analysis revealed no obvious change in the number of neurons. These changes in the CNS are similar to human CD, suggesting that this animal model would be useful for further study of treatment and understanding the pathophysiology of human CD.
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