Results 181 to 190 of about 5,857 (224)
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Interpeducular nucleus afferents in the rat
Brain Research, 1980Afferents to the interpeduncular nucleus (IPN) of the rat were studied with the horseradish peroxidase (HRP) retrograde transport method. HRP was deposited microelectrophoretically in the IPN of adult rats. Major projections to the IPN originate in the medial habenular nucleus, the region surrounding the dorsal tegmental nucleus (accessory dorsal ...
E R, Marchand, J N, Riley, R Y, Moore
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Unique synaptic topography of crest-type synapses in the interpeduncular nucleus
Biochemical and Biophysical Research Communications, 2020Neurons in the central nervous system display a great diversity of synaptic architecture. While much of our knowledge on the excitatory synapse morphology derives from the prototypical asymmetric synapses, little has been studied about the atypical crest-type synapse that exists in the restricted brain regions.
Laxmi Kumar Parajuli +4 more
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Neurogenesis in subnuclei of the rat interpeduncular nucleus and medial habenula
Brain Research Bulletin, 1986Development of the rat habenulo-interpeduncular system is of interest because of its highly ordered adult structure, including seven subnuclei within the interpeduncular nucleus (IPN), localization of synapses of different types and medial habenular (MH) sites of origin within the subnuclei, and differential localization of neurochemicals amongst the ...
N J, Lenn, S A, Bayer
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Left-right pairing at the crest synapses of rat interpeduncular nucleus
Neuroscience, 1983Synaptic terminals of the habenulo-interpeduncular axons in rat interpeduncular nucleus are demonstrated by electron-microscopic autoradiography following [3H]leucine injection into the habenula. The endings are of two types, S and crest synapses. Previous descriptions of the S synapses based on indirect identification were confirmed.
N J, Lenn, V, Wong, G S, Hamill
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Electron microscopic demonstration of caudal afferents to the rat interpeduncular nucleus
Neuroscience, 1980Abstract Analysis of the synaptology of the rat interpeduncular nucleus is of interest, amongst other reasons, because of morphological and biochemical evidence for synaptic sprouting following lesions of the habenular nucleus. Thus far only the synapses arising from the habenulointerpeduncular afferent axons have been identified by electron ...
N J, Lenn, V, Wong
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Neonatal enzymic development in the interpeduncular nucleus and surrounding ventral tegmentum
Experimental Neurology, 1976Abstract Choline acetyltransferase, tyrosine hydroxylase, glutamic acid decarboxylase, and acetylcholinesterase activities were measured in the combined interpeduncular nucleus and surrounding tegmentum in rats from 3 to 30 days of age. At 3 days choline acetyltransferase activity is 5% and glutamic acid decarboxylase activity is 24% of the ...
E G, McGeer, J, Parkinson, P L, McGeer
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Connections of the laterodorsal tegmental nucleus with the habenular‐interpeduncular‐raphe system
Journal of Comparative Neurology, 2019AbstractThe laterodorsal tegmental nucleus (LDTg) is a hindbrain cholinergic cell group thought to be involved in mechanisms of arousal and the control of midbrain dopamine cells. Nowadays, there is increasing evidence that LDTg is also engaged in mechanisms of anxiety/fear and promotion of emotional arousal under adverse conditions.
Debora Bueno +8 more
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Cholinergic systems in the rat brain: II. Projections to the interpeduncular nucleus
Brain Research Bulletin, 1985The cholinergic innervation of the interpeduncular nucleus was investigated by use of fluorescent tracer histology in combination with choline-O-acetyltransferase (ChAT) immunohistochemistry and acetylcholinesterase (AChE) pharmacohistochemistry. Following propidium iodide or Evans Blue infusion into the interpeduncular nucleus, brains were processed ...
N J, Woolf, L L, Butcher
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Distribution of 5-hydroxytryptamine-containing neuronal perikarya in the rat interpeduncular nucleus
Neuroscience Letters, 1982Abstract A recently developed technique for the fluorescence histochemical demonstration of 5-hydroxytryptamine (5-HT) has been applied to the localization of 5-HT-containing neuronal perikarya in the dorsocaudal part (pars dorsalis magnocellularis) of the rat interpeduncular nucleus (IPN).
W, Singhaniyom +2 more
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