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Neurotransmitters contained in the subcortical extraretinal inputs to the monkey lateral geniculate nucleus
Journal of comparative neurology (1911), 2000-09, Vol.424 (4), p.701-717
Bickford, Martha E.
Ramcharan, Eion
Godwin, Dwayne W.
Erişir, Alev
Gnadt, Jim
Sherman, S. Murray
2000
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Bickford, Martha E.
Ramcharan, Eion
Godwin, Dwayne W.
Erişir, Alev
Gnadt, Jim
Sherman, S. Murray
Titel
Neurotransmitters contained in the subcortical extraretinal inputs to the monkey lateral geniculate nucleus
Ist Teil von
Journal of comparative neurology (1911), 2000-09, Vol.424 (4), p.701-717
Ort / Verlag
New York: John Wiley & Sons, Inc
Erscheinungsjahr
2000
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
The lateral geniculate nucleus (LGN) is the thalamic relay of retinal information to cortex. An extensive complement of nonretinal inputs to the LGN combine to modulate the responsiveness of relay cells to their retinal inputs, and thus control the transfer of visual information to cortex. These inputs have been studied in the most detail in the cat. The goal of the present study was to determine whether the neurotransmitters used by nonretinal afferents to the monkey LGN are similar to those identified in the cat. By combining the retrograde transport of tracers injected into the monkey LGN with immunocytochemical labeling for choline acetyl transferase, brain nitric oxide synthase, glutamic acid decarboxylase, tyrosine hydroxylase, or the histochemical nicotinamide adenine dinucleotide phosphate (NADPH)‐diaphorase reaction, we determined that the organization of neurotransmitter inputs to the monkey LGN is strikingly similar to the patterns occurring in the cat. In particular, we found that the monkey LGN receives a significant cholinergic/nitrergic projection from the pedunculopontine tegmentum, γ‐aminobutyric acid (GABA)ergic projections from the thalamic reticular nucleus and pretectum, and a cholinergic projection from the parabigeminal nucleus. The major difference between the innervation of the LGN in the cat and the monkey is the absence of a noradrenergic projection to the monkey LGN. The segregation of the noradrenergic cells and cholinergic cells in the monkey brainstem also differs from the intermingled arrangement found in the cat brainstem. Our findings suggest that studies of basic mechanisms underlying the control of visual information flow through the LGN of the cat may relate directly to similar issues in primates, and ultimately, humans. J. Comp. Neurol. 424:701–717, 2000. © 2000 Wiley‐Liss, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0021-9967
eISSN: 1096-9861
DOI: 10.1002/1096-9861(20000904)424:4<701::AID-CNE11>3.0.CO;2-B
Titel-ID: cdi_proquest_miscellaneous_71730773
Format
–
Schlagworte
acetylcholine
,
Acetylcholine - metabolism
,
Afferent Pathways - cytology
,
Afferent Pathways - metabolism
,
Animals
,
Brain Mapping - methods
,
Brain Stem - cytology
,
Brain Stem - metabolism
,
gamma-Aminobutyric Acid - metabolism
,
Geniculate Bodies - cytology
,
Geniculate Bodies - metabolism
,
Macaca mulatta - anatomy & histology
,
Macaca mulatta - metabolism
,
Neurotransmitter Agents - metabolism
,
nitric oxide
,
Nitric Oxide Synthase - metabolism
,
noradrenaline
,
Norepinephrine - metabolism
,
pendunculopontine tegmentum
,
γ-aminobutyric acid
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