[Immunocytochemical research on mediators of centrifugal visual neurons in lampreys (Lampetra fluviatilis)].
The aim of this study has been to investigate different neuroactive substances in the lamprey centrifugal visual neurons (CVN) by combining axonal tracing methods and immunocytochemistry. The CVN somata are immunonegative to antibodies recognizing FMRF-amide, LH-RH, 5 HT and TH, but immunopositive to an anti-GABA antiserum (GABA+) in a proportion of 40%. In the retina, the GABA+ axon terminals mainly synapse upon GABA+ and GABA- amacrine cell bodies and dendrites, and on dendrites of GABA- ganglion cells.
Laboratoire de Neuromorphologie, Développement, Evolution, I.N.S.E.R.M. U 106, Hôpital de la Salpêtrière, Paris.
J P
JP
Rio
N
N
Dalil
E
E
Kirpitchnikova
N P
NP
Vesselkin
C
C
Versaux-Botteri
J
J
Reperant
D000818:Animals; D019835:FMRFamide; D007987:Gonadotropin-Releasing Hormone / Q000378:metabolism; D007150:Immunohistochemistry; D007798:Lampreys / Q000276:immunology / Q000502:physiology*; D009474:Neurons / Q000378:metabolism*; D009479:Neuropeptides / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000378:metabolism*; D012701:Serotonin / Q000378:metabolism; D014446:Tyrosine 3-Monooxygenase / Q000378:metabolism; D014795:Visual Pathways / Q000166:cytology / Q000378:metabolism*; D005680:gamma-Aminobutyric Acid / Q000378:metabolism
D009479:Neuropeptides; D018377:Neurotransmitter Agents; D012701:Serotonin; D007987:Gonadotropin-Releasing Hormone; D005680:gamma-Aminobutyric Acid; D019835:FMRFamide; D014446:Tyrosine 3-Monooxygenase
Recherche immunocytochimique sur les médiateurs des neurones visuels centrifuges de la lamproie (Lampetra fluviatilis).