GABAergic retinocollicular projection in the New World monkey Cebus apella.
GABA immunoreactivity was examined in the retina of the New World monkey Cebus apella. Labeled cell bodies were identified as horizontal, bipolar, interplexiform, amacrine and a population of putative ganglion cells. To determine whether ganglion cells were immunoreactive to GABA, double-labeling experiments were performed using Fast Blue as retrograde neuronal tracer injected into the superior colliculus. Retinas containing FB-labeled ganglion cells were subsequently incubated with antiserum against GABA. Although retinocollicular ganglion cells were found in three different layers (ganglion cell layer, inner nuclear layer and inner plexiform layer), our experiments revealed GABA-positive ganglion cells only in the outer half of the ganglion cell layer.
da Costa
B L
BL
Programa de Neurobiologia, Instituto de Biofśica Carlos Chagas Filho, CCS-Bl.G, Universidade Federal do Rio de Janeiro, Brazil.
Hokoç
J N
JN
Pinaud
R R
RR
Gattass
R
R
D000578:Amidines; D000818:Animals; D002428:Cebus; D005456:Fluorescent Dyes; D007150:Immunohistochemistry; D008297:Male; D012160:Retina / Q000033:anatomy & histology / Q000378:metabolism / Q000502:physiology*; D012165:Retinal Ganglion Cells / Q000378:metabolism / Q000502:physiology; D013477:Superior Colliculi / Q000033:anatomy & histology / Q000378:metabolism / Q000502:physiology*; D014795:Visual Pathways / Q000378:metabolism / Q000502:physiology; D005680:gamma-Aminobutyric Acid / Q000378:metabolism / Q000502:physiology*
D000578:Amidines; D005456:Fluorescent Dyes; C031455:diamidino compound 253-50; D005680:gamma-Aminobutyric Acid