Regeneration of ascending spinal axons in goldfish.
Regeneration of descending spinal cord tracts occur spontaneously in adult goldfish. Very little information is available regarding the fate of ascending fibers. Using Dextran amines as a tracer, we studied the normal and regenerated ascending axonal projection patterns in adult goldfish brain nuclei. Present study includes spinal projections to torus semicircularis, hypothalamus, thalamus and the telencephalon. Regenerated fibers had finer caliber axons and the terminal axonal arbors covered a larger area than the corresponding normal ones.
Hanna
G F
GF
Department of Ophthalmology, Cell Biology and Anatomy, New York Medical College, Valhalla, NY 10595, USA.
Nawar
N N
NN
Sharma
S C
SC
D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D001369:Axons / Q000502:physiology*; D001710:Biotin / Q000031:analogs & derivatives; D001931:Brain Mapping; D003911:Dextrans; D004027:Diencephalon / Q000502:physiology; D005456:Fluorescent Dyes; D006054:Goldfish / Q000502:physiology*; D008636:Mesencephalon / Q000502:physiology; D009416:Nerve Regeneration / Q000502:physiology*; D013116:Spinal Cord / Q000502:physiology* / Q000648:ultrastructure; D013687:Telencephalon / Q000502:physiology
D003911:Dextrans; D005456:Fluorescent Dyes; C076397:biotinylated dextran amine; D001710:Biotin