Abstract:
:The area postrema has been implicated as a major station for the processing of visceral sensory information, involved primarily in eliciting rapid homeostatic responses to fluid and nutrient imbalances. Yet the precise relationship of efferent projections from the area postrema to medullary motor and relay nuclei involved in such functions remains unclear. In this study, axonal transport and immunohistochemical techniques were used to investigate the relationship of efferent projections from the area postrema to vagal motor neurons and medullary catecholamine-containing cell groups in the rat. The results may be summarized as follows: (1) The area postrema gives rise to dense inputs to the commissural and medial parts of the nucleus of the solitary tract. Many of these projections are intimately associated with catecholamine-containing neurons in the A2 and C2 cell groups, including a particularly prominent input to a caudally placed cluster of adrenergic neurons (the C2d cell group) in the dorsal aspect of the medial part of the nucleus of the solitary tract. (2) The area postrema provides a dense input to the external lateral part of the parabrachial nucleus. (3) The area postrema does not project significantly to vagal motor neurons in either the dorsal motor nucleus or the nucleus ambiguus, although the possibility for inputs to distal dendrites of dorsal vagal motor neurons cannot be excluded. (4) En route to the parabrachial nucleus, axons of area postrema neurons traverse the regions of the A1, C1 and A5 cell groups, although these fibers make few arborizations, suggesting little functional contact. Together, these results suggest that sensory information received by the area postrema is dispatched to a restricted set of neurons in the commissural, medial, and dorsal parts of the nucleus of the solitary tract, most probably including catecholamine-containing cells in the A2, C2, and C2d cell groups, and to the external lateral portion of the parabrachial nucleus. The targets of area postrema projections are, in turn, in a position to effect adaptive changes in the activities of hypothalamic neurosecretory neurons, vagal motor neurons, and limbic forebrain regions in response to perturbations in fluid and nutrient homeostasis.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Cunningham ET Jr,Miselis RR,Sawchenko PEdoi
10.1016/0306-4522(94)90087-6subject
Has Abstractpub_date
1994-02-01 00:00:00pages
635-48issue
3eissn
0306-4522issn
1873-7544pii
0306-4522(94)90087-6journal_volume
58pub_type
杂志文章相关文献
NEUROSCIENCE文献大全abstract::The schizophrenia-susceptibility gene, dystrobrevin-binding protein 1 (DTNBP1), encodes the dysbindin protein and mediates neurotransmission and neurodevelopment in normal subjects. Functional studies show that DTNBP1 loss may cause deficient presynaptic vesicle transmission, which is related to multiple psychiatric d...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.10.020
更新日期:2021-01-01 00:00:00
abstract::Previous studies suggested that Group I metabotropic glutamate (mGlu) receptors play a role in mechanotransduction processes of slowly adapting type I mechanoreceptors. Using an isolated rat sinus hair follicle preparation we tested a range of compounds. Surprisingly, only non-competitive mGlu1 receptor antagonists pr...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.07.015
更新日期:2009-10-20 00:00:00
abstract::It is well established that chronic food restriction enhances sensitivity to the rewarding and motor-activating effects of abused drugs. However, neuroadaptations underlying these behavioral effects have not been characterized. The purpose of the present study was to explore the possibility that food restriction produ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(03)00227-6
更新日期:2003-01-01 00:00:00
abstract::Neural injury triggers changes in the expression of a large number of gene families. Particularly interesting are those encoding proteins involved in the generation, propagation or restoration of electric potentials. The expression of the Na+, K+-ATPase subunit isoforms (alpha, beta and gamma) was studied in dorsal ro...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.08.041
更新日期:2004-01-01 00:00:00
abstract::N-Methyl-D-aspartate receptors are fundamental for neuronal plasticity and development in the CNS. Most studies have examined postsynaptic roles of this receptor, but there are also indications for a presynaptic location and function. Here, we provide electrophysiological evidence for the existence of presynaptic N-me...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(96)00301-6
更新日期:1996-11-01 00:00:00
abstract::The findings in this feline study indicate that the enkephalin-positive subcommissural part of the globus pallidus, which is known to contain GABA and cholinergic cells projecting to the cortex, is innervated by the anterodorsal region of the caudate nucleus, but not by the core. Like stimulation of a particular subcl...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(89)90405-3
更新日期:1989-01-01 00:00:00
abstract::The roles of the central noradrenergic and serotonergic system in the activity-dependent regulation of ocular dominance plasticity have been a contentious issue. Using c-Fos activity mapping, we have developed a new, straightforward method to measure the strength of ocular dominance plasticity: the number of c-Fos-imm...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2013.01.013
更新日期:2013-04-03 00:00:00
abstract::The basal forebrain (BF) comprises morphologically and functionally heterogeneous cell populations, including cholinergic and non-cholinergic corticopetal neurons that are implicated in sleep-wake modulation, learning, memory and attention. Several studies suggest that glutamate may be among inputs affecting cholinerg...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.09.042
更新日期:2009-12-29 00:00:00
abstract::Healthy aging is accompanied by neurobiological changes that affect the brain's functional organization and the individual's cognitive abilities. The aim of this study was to investigate the effect of global age-related differences in the cortical white and gray matter on neural activity in three key large-scale netwo...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.01.049
更新日期:2015-04-02 00:00:00
abstract::Three anti-peptide antisera were raised against three distinct amino acid sequences of ecto-nucleoside triphosphate diphosphohydrolase 3 (NTPDase3), characterized by Western blot analyses, and used to determine the distribution of NTPDase3 protein in adult rat brain. The three antisera all yielded similar immunolocali...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2005.08.086
更新日期:2006-01-01 00:00:00
abstract::Brain bioenergetic abnormalities in mood disorders were detected by neuroimaging in vivo studies in humans. Because of the increasing importance of mitochondrial pathogenetic hypothesis of Depression, in this study the effects of sub-chronic treatment (21days) with desipramine (15mg/kg) and fluoxetine (10mg/kg) were e...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.05.051
更新日期:2016-08-25 00:00:00
abstract::Our previous studies on olfactory bulbar responses in salmonid fishes suggest that pheromone signals might be processed by a mechanism distinct from that of other odorants. Using in vivo single-unit and electroencephalographic recordings, we investigated response characteristics of olfactory neurons in lake whitefish,...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00717-0
更新日期:2003-01-01 00:00:00
abstract::The hippocampal CA1 region receives cortical information via two main inputs: directly via the perforant (temporoammonic) path (pp-CA1 synapse) and indirectly via the tri-synaptic pathway. Although synaptic plasticity has been reported at the pp-CA1 synapse of freely behaving animals, the mechanisms underlying this ph...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.03.014
更新日期:2015-11-19 00:00:00
abstract::Rats were systemically pre-treated with capsaicin either on the first day of life or at an age of 1 month. Both treatments were found to deplete substance P levels in the trigeminal nucleus caudalis (55.6% and 57.9% depletions, respectively). Extracellular single neurone recordings in the trigeminal nucleus caudalis r...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(82)91121-6
更新日期:1982-05-01 00:00:00
abstract::Nickel (Ni(2+)) is a toxic metal that affects the function of several ionic channels. In the N-methyl-d-aspartate (NMDA) subtype of glutamate receptor (NR), it causes activity enhancement of the channels containing the NR2B subunit and voltage-independent inhibition of those containing NR2A. Thus, it may represent a f...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2010.12.018
更新日期:2011-03-17 00:00:00
abstract::Foetal mouse hippocampal primordia from mice homozygous for the Thy-1.1 allele were transplanted into the hippocampal region of adult histocompatible mice, homozygous for the Thy-1.2 allele. After survival periods of two months to one year the transplants consisted of a discrete tissue mass, well fused with the host, ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(85)90096-x
更新日期:1985-12-01 00:00:00
abstract::The role of Orphanin-FQ/nociceptin in synaptic plasticity was assessed by its potency in modulating kindling epileptogenesis in vivo, and feed-forward inhibition in hippocampal recordings in vitro. In addition, a specific rabbit antiserum against this peptide was obtained and the immunohistochemical distribution of no...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(01)00196-8
更新日期:2001-01-01 00:00:00
abstract::When human divers or experimental animals are exposed to high pressure, they develop the high-pressure neurological syndrome which is characterized by electroencephalographic changes, and behavioral disturbances. Recently, neurochemical disorders such as a pressure-induced increase in dopamine release have been demons...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(92)90432-2
更新日期:1992-09-01 00:00:00
abstract::CF-1 male mice were trained in an inhibitory avoidance task using a high footshock (1.2mA, 50Hz, 1 s) in order to reduce the influence of extinction on retention performance. A single session of 5 min exposure to a hole-board (nose-poke behavior), either immediately after training or the first retention test (memory r...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2005.04.068
更新日期:2005-01-01 00:00:00
abstract::Transthyretin is the major thyroxine-binding protein in the plasma of rodents, and the main thyroxine-binding protein in the cerebrospinal fluid of both rodents and humans. The choroid plexus synthesizes transthyretin and secretes it to the cerebrospinal fluid. Although it was suggested that transthyretin might play a...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00228-2
更新日期:2002-01-01 00:00:00
abstract::The relation between quantal transmitter release and presynaptic Ca2+/Ba2+ entry at the mouse neuromuscular junction was studied, making use of the finding that in the presence of Ba2+ trains of nerve stimuli or brief nerve terminal depolarizations elicit "tails" of raised miniature end-plate potential frequency (fm) ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(92)90305-l
更新日期:1992-12-01 00:00:00
abstract::Cellular distribution of creatine kinase BB-isoenzyme and tubulin was investigated immunohistochemically with tissue sections from various areas of the gerbil brain. Both the reaction for creatine kinase BB-isoenzyme and tubulin visualized nerve cell bodies, dendrites and axons. While the reaction for tubulin was simi...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(84)90183-0
更新日期:1984-07-01 00:00:00
abstract::Aversive experiences in early life are thought to dispose to psychopathologies such as mood or anxiety disorders. In a two-hit stress model, we assessed the effects of juvenile and/or adult stress on the 5-HT-mediated modulation of synaptic inhibition of ventral dentate gyrus granule cells. Combined but not single str...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.02.050
更新日期:2015-05-07 00:00:00
abstract::The superior temporal gyrus (STG) is involved in speech recognition against informational masking under cocktail-party-listening conditions. Compared to healthy listeners, people with schizophrenia perform worse in speech recognition under informational speech-on-speech masking conditions. It is not clear whether the ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2017.06.043
更新日期:2017-09-17 00:00:00
abstract::We describe two distinct mechanisms for the enhancement of plasma extravasation in the knee joint of the rat. One is activated by bradykinin and is neurogenic; the other is activated by platelet-activating factor and is non-neurogenic. Bradykinin-induced synovial plasma extravasation is known to be dependent on the sy...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(93)90422-c
更新日期:1993-02-01 00:00:00
abstract::Research in songbirds shows that singing behavior is regulated by both brain areas involved in vocal behavior as well as those involved in social behavior. Interestingly, the precise role of these regions in song can vary as a function of the social, environmental and breeding context. To date, little is known about t...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.01.042
更新日期:2009-03-31 00:00:00
abstract::Changes in the distribution of 5-hydroxytryptamine-like immunoreactivity have been examined in enteric neurons at various times after microsurgical lesions of the enteric plexuses. In the myenteric plexus, varicose immunoreactive nerve fibres disappeared or were reduced in number in ganglia anal to an interruption of ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(82)90271-8
更新日期:1982-02-01 00:00:00
abstract::The accessory olfactory bulb of the mouse was studied by current source-density analysis of field potentials to determine the laminar and temporal distribution of synaptic currents evoked by electrical stimulation of the vomeronasal organ. The one-dimensional current source-density analysis revealed two major spatiall...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(92)90093-h
更新日期:1992-07-01 00:00:00
abstract::Adrenergic modulation of glutamatergic spontaneous miniature excitatory postsynaptic currents (mEPSCs) was investigated in mechanically dissociated rat ventromedial hypothalamic (VMH) neurons using a conventional whole-cell patch clamp technique. Noradrenaline (NA) reversibly increased mEPSC frequency without affectin...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2006.10.049
更新日期:2007-02-23 00:00:00
abstract::The perception of tool-object pairs involves understanding their action-relationships (affordances). Here, we sought to evaluate how an observer visually encodes tool-object affordances. Eye-movements were recorded as right-handed participants freely viewed static, right-handed, egocentric tool-object images across th...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.09.060
更新日期:2015-12-03 00:00:00