The present study was designed to investigate the efficacy of the fluorescent dyes Fast Blue (FB), Fluoro-Gold (FG), and Diamidino Yellow (DY) for retrograde tracing of lumbar dorsal root ganglia after their subcutaneous injection into different hindlimb digits. Injections of equal volumes (0.5 microl) of 51% FB or 2% FG resulted in similar mean numbers of sensory neurones labelled by each trac...

Spinal projections of the phenylethanolamine N-methyltransferase (PNMT) immunoreactive neurons of the medulla were investigated using a combination of immunohistochemistry and retrograde transport of colloidal gold particles conjugated to cholera toxin B subunit (CTB-gold). The PNMT-containing adrenergic neurons were localised in three groups, the C1 group in the rostral ventrolateral medulla, ...

Immuno-gold labelling electron microscopy of thin sections was used to determine the distribution of red cell membrane and membrane skeleton proteins in the vicinity of internalized malaria parasites. When examined immediately after invasion (young ring-stage parasites), the parasitophorous vacuole membranes of both Plasmodium falciparum and P. knowlesi were found to be characterized by the ess...