THE UPTAKE OF INTRAVENOUS HORSERADISH-PEROXIDASE BY THE GUINEA-PIG INFERIOR MESENTERIC GANGLION

  • 1 January 1980
    • journal article
    • research article
    • Vol. 130  (JUN) , 883-889
Abstract
The uptake of i.v. injected horseradish peroxidase (HRP) by the neuronal perikaryon and SIF [small intensity fluorescent] cells was studied in the guinea pig inferior mesenteric ganglion (IMG). The HRP rapidly penetrated the walls of the blood vessels within the ganglion and was taken up by neurons and SIF cells by coated pinocytotic vesicles. HRP reaction product was found within larger vesicles which were most prominent 6-9 h after injection. At 30 h after injection all neurons and SIF cells within the IMG were free of peroxidase reaction product. The implications of these findings were considered in relation to retrograde axonal transport studies in autonomic neurons.