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Intraocular injection of tetrodotoxin in goldfish decreases fast axonal transport of [3H]glucosamine-labeled materials in optic axons

Brain ResearchPublished 1 May 1984
D. Louise Edwards, Bernice Grafstein
Citations35
SJR quartileQ2
SJR score0.85
SNIP0.72

Abstract

When physiological activity in goldfish visual system was abolished by repeated intraocular injection of tetrodotoxin (TTX), the fast axonal transport of radioactive amino acid-labeled protein in the optic axons was unaltered. However, the TTX treatment reduced the amount of [3H]glucosamine-labeled glycolipids that were axonally transported to the optic tectum, and may have decreased their rate of turnover in the tectum. A similar though smaller effect was observed for glucosamine-containing glycoproteins. These alterations in axonal transport may be the basis for at least some of the deleterious effects of TTX on axonal regeneration in this system.

Keywords

MedicineEnvironmental Science