CO2-sensitive medullary neurons: activation by intracellular acidification.

Abstract:

:Bioelectric activity of CO2-sensitive, ventrolateral medullary neurons (VLN(CS)) in organotypic cultures from the obex level of newborn rats was tested during changes of the intracellular pH (pHi) measured in BCECF-AM loaded cultures. Hypercapnia (pCO2 80-100 mmHg) reduced pHi by 0.15 +/- 0.06 units and stimulated neuronal discharges. Replacement of CO2/HCO3- in the bath by HEPES (26 mM, pH 7.4) for 10 min acidified pHi (0.07 +/- 0.03 units) and also excited VLN(CS). Ammonium chloride (10 mM, 1 min) initially alkalized (0.1 +/- 0.04) and thereafter acidified pHi (0.06 +/- 0.03), while the extracellular pH was first acidified and then alkalized. This resulted in neuronal discharge which were first suppressed and then accelerated. The findings strongly suggest that intracellular rather than extracellular acidification activates CO2-sensitive neurons.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Wiemann M,Baker RE,Bonnet U,Bingmann D

doi

10.1097/00001756-199801050-00034

subject

Has Abstract

pub_date

1998-01-05 00:00:00

pages

167-70

issue

1

eissn

0959-4965

issn

1473-558X

journal_volume

9

pub_type

杂志文章
  • Lung inflation inhibits rapidly adapting receptor relay neurons in the rat.

    abstract::Pulmonary slowly adapting receptors (SARs) and rapidly adapting receptors (RARs) are important components of various respiratory reflexes. In anesthetized, paralyzed and artificially ventilated rats, we found an inhibitory linkage from the former to the latter system at the level of their second-order relay neurons (P...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200006050-00023

    authors: Ezure K,Tanaka I

    更新日期:2000-06-05 00:00:00

  • CRISPR-mediated SOX9 knockout inhibits GFAP expression in retinal glial (Müller) cells.

    abstract::Müller cells, as the predominant glial element in the sensory retina, play a crucial role in healthy and diseased retina. Overactivation of Müller cells in response to damage is detrimental to the retina tissue. Current research shows that inhibiting glial fibrillary acidic protein (GFAP), a sensitive indicator of Mül...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000001143

    authors: Wang X,Shu Q,Ni Y,Xu G

    更新日期:2018-12-05 00:00:00

  • Nitric oxide synthase isoforms and peripheral chemoreceptor stimulation in conscious rats.

    abstract::To test the effect of nitric oxide synthase (NOS) blockade on the ventilatory responses to carotid body chemoreceptor stimulation in freely behaving animals, chronically instrumented adult Sprague-Dawley rats received increasing intravenous doses of sodium cyanide (NaCN; 0-300 micrograms kg-1) before and after i.v. ad...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199604260-00009

    authors: Gozal D,Gozal E,Gozal YM,Torres JE

    更新日期:1996-04-26 00:00:00

  • Successful outcomes of cochlear implantation in long-term unilateral deafness: brain plasticity?

    abstract::To investigate the implications of duration of deafness in the rehabilitation of unilateral deafness utilizing cochlear implantation. From the ongoing prospective cochlear implantation in unilateral deafness study, we looked at five adults who received a cochlear implant for long-term unilateral deafness. Speech perce...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0b013e3283642a93

    authors: Távora-Vieira D,Boisvert I,McMahon CM,Maric V,Rajan GP

    更新日期:2013-09-11 00:00:00

  • Salidroside promotes peripheral nerve regeneration following crush injury to the sciatic nerve in rats.

    abstract::Salidroside (SDS), a phenylpropanoid glycoside isolated from Rhodiola rosea L., has been reported to be neuroprotective in vitro, which raises the possibility of using SDS as a neuroprotective agent after nerve injuries. In the present study, the possibly beneficial effect of SDS on promoting nerve regeneration after ...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0b013e32835eb867

    authors: Sheng QS,Wang ZJ,Zhang J,Zhang YG

    更新日期:2013-03-27 00:00:00

  • Sex differences in rapid auditory processing deficits in ectopic BXSB/MpJ mice.

    abstract::Prior research with rodent models, performed predominantly in males, has demonstrated a significant association between focal neocortical malformations (e.g. ectopias and microgyria) and rate-specific auditory processing deficits. In the current study and consistent with prior findings, we report that ectopic male BXS...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200212030-00021

    authors: Peiffer AM,Rosen GD,Fitch RH

    更新日期:2002-12-03 00:00:00

  • BDNF mediates the neuroprotective effect of PACAP-38 on rat cortical neurons.

    abstract::In primary cultures from rat cerebral cortex, pituitary adenylate cyclase-activating polypeptide (PACAP-38) exerted a protective effect on cell death induced by the excitotoxin NMDA in neuron-enriched cultures and also on apoptotic cell death induced by serum deprivation in mixed neuronal-glial cultures. The neuroprot...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200104170-00011

    authors: Frechilla D,García-Osta A,Palacios S,Cenarruzabeitia E,Del Rio J

    更新日期:2001-04-17 00:00:00

  • Regeneration of the auditory pathway in adult rats by transplants of fetal brain tissue.

    abstract::The ventral cochlear tract in the brain stem to pons was transected on one side in two groups of adult rats. In one group simple transection was performed, while in the other group tissue from embryos (E14-E16) was used to cover the lesion site. While rats receiving simple transection without transplantation showed no...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199812010-00009

    authors: Ito J,Kawaguchi S,Murata M

    更新日期:1998-12-01 00:00:00

  • External modulation of visual perception in humans.

    abstract::Static and dynamic contrast sensitivities (sCS and dCS) were evaluated before, during, immediately after and 10 min after anodal and cathodal transcranial direct current stimulation (tDCS) applied to the occipital cortex of 15 healthy subjects. Using 4 c/d spatial and 4 Hz temporal frequencies significant sCS and dCS ...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200111160-00036

    authors: Antal A,Nitsche MA,Paulus W

    更新日期:2001-11-16 00:00:00

  • Nicotinamide promotes neuronal differentiation of mouse embryonic stem cells in vitro.

    abstract::Factors controlling proliferation and differentiation are crucial in advancement of neural cell-based experimental neurodegenerative therapies. In this regard, nicotinamide has been shown to determine the fate of neural cells, enhance neuralization, and influence DNA repair and apoptosis. This study investigated wheth...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000000071

    authors: Griffin SM,Pickard MR,Orme RP,Hawkins CP,Fricker RA

    更新日期:2013-12-18 00:00:00

  • Glutamine's protection against brain damage in septic rats via increased protein oxygen-N-acetylglucosamine modification.

    abstract:OBJECTIVE:This study aimed to observe the effect of glutamine (Gln) on brain damage in septic rats and explore its possible mechanism. METHODS:Ninety-three Sprague-Dawley rats were randomly divided into five groups: sham operation group, sepsis group, Gln-treated group, quercetin/Gln-treated group, and alloxan/Gln-tre...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000001582

    authors: Wang J,Lu X,Zheng K,Jing L

    更新日期:2021-01-18 00:00:00

  • NMDA receptor subunit and CaMKII changes in rat hippocampus by congenital HCMV infection: a mechanism for learning and memory impairment.

    abstract::The aim of this study was to investigate the effects of congenital human cytomegalovirus infection on the expression levels of N-methyl-D-aspartate receptors (NRs) and Ca/calmodulin-dependent protein kinase II (CaMKII) in the hippocampal neurons of neonatal Sprague-Dawley (SD) rats. Pregnant SD rats were divided into ...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000000750

    authors: Wu,Yang L,Bu X,Tang J,Fan X

    更新日期:2017-03-22 00:00:00

  • Enhanced expression of I-kappaB with neurofibrillary pathology in Alzheimer's disease.

    abstract::Inflammatory and immune responses are known to be involved in the pathogenesis of Alzheimer's disease (AD). NF-kappaB is a major transcription factor that plays a central role in the inflammatory and immune responses and is regulated by I-kappaB through an autoregulatory feedback system. Southwestern immunohistochemis...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200108280-00011

    authors: Yoshiyama Y,Arai K,Hattori T

    更新日期:2001-08-28 00:00:00

  • Trichloroethanol alters action potentials in a subgroup of primary sensory neurones.

    abstract::We investigated the effects of 2,2,2-trichloroethanol (TCE), the active metabolite of chloral hydrate, on large-conductance calcium-activated K+ channels (BKCa channels) of dorsal root ganglion (DRG) neurones. In outside-out patches, 2 and 5 mM TCE increased the open probability of BKCa channels to 1.7-fold and 2.8-fo...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200205070-00023

    authors: Gruss M,Hempelmann G,Scholz A

    更新日期:2002-05-07 00:00:00

  • Radiation-induced cerebellar-cerebral functional connectivity alterations in nasopharyngeal carcinoma patients.

    abstract::The current study aimed to investigate the altered cerebellar-cerebral functional connectivity (FC) induced by radiotherapy to nasopharyngeal carcinoma (NPC) patients. Twenty-four NPC patients without treatment, and 35 NPC patients receiving radiotherapy underwent functional MRI scanning. Montreal cognitive assessment...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000000813

    authors: Ma Q,Zeng LL,Qin J,Luo Z,Su J,Wu D,Qiu S,Hu D

    更新日期:2017-08-16 00:00:00

  • Reciprocal accumulation of beta-synuclein in alpha-synuclein lesions in multiple system atrophy.

    abstract::Alpha-Synuclein is a major component of neuronal and glial cytoplasmic inclusions in multiple system atrophy (MSA), one of the alpha-synucleinopathies. Recent studies have shown that beta-synuclein, a homolog of alpha-synuclein, inhibits alpha-synuclein aggregation in vitro. We immunohistochemically examined the MSA b...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200310060-00005

    authors: Mori F,Nishie M,Yoshimoto M,Takahashi H,Wakabayashi K

    更新日期:2003-10-06 00:00:00

  • Automatic SCSB analysis of motor and autonomic nervous functions compared with sleep stages.

    abstract::All-night recordings of respiration, ballistocardiogram, and body movements were obtained using the static charge-sensitive bed (SCSB) and automatically analysed data were compared with sleep stages. The mean sum of eight SCSB variability parameters was lowest in slow wave sleep (SWS), higher during stage 2 (S2), and ...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199604100-00030

    authors: Kaartinen J,Erkinjutti M,Rauhala E

    更新日期:1996-04-10 00:00:00

  • Dendrobium nobile Lindl. polysaccharides reduce cerebral ischemia/reperfusion injury in mice by increasing myeloid cell leukemia 1 via the downregulation of miR-134.

    abstract:OBJECTIVE:The traditional Chinese medicine, Dendrobium nobile Lindl. polysaccharides (DNLP), reportedly has neuroprotective effects. However, its effects following ischemic stroke remain unclear. This study aimed to explore the role and mechanism of DNLP in experimental models of inflammation and apoptosis. METHODS:In...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000001562

    authors: Liu J,Han Y,Zhu T,Yang Q,Wang H,Zhang H

    更新日期:2020-12-14 00:00:00

  • Induction of NG108-15 cells differentiation by human bone marrow stromal cells.

    abstract::The survival and differentiation of neuronal cells is dependent on factors such as neurotrophins, cytokines and components of extracellular matrix. Bone marrow stromal cells have been shown to support the growth and differentiation of neuroblastoma cells. In an attempt to study the effects of bone marrow stromal cells...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199805110-00021

    authors: Ho SH,So LH,Lai KO,Ip NY,Leung MF

    更新日期:1998-05-11 00:00:00

  • The role of the left inferior temporal cortex for visual pattern discrimination--a PET study.

    abstract::We measured regional cerebral blood flow using positron emission tomography in seven normal volunteers during discrimination tasks for visual patterns. For the 'attention to right or left' tasks, the subjects were instructed to press a key when sample and test stimuli presented in the right or left visual fields, resp...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199805110-00060

    authors: Kawashima R,Satoh K,Goto R,Inoue K,Itoh M,Fukuda H

    更新日期:1998-05-11 00:00:00

  • Implication of non-NMDA and NMDA receptors in cochlear ischemia.

    abstract::We have investigated the hypothesis that the acute ischemic swelling of the radial dendrites connected to the inner hair cells (IHCs) is mediated by glutamatergic receptors. In control cochleas, after 20 min ischemia all the dendrites were dramatically swollen. Conversely, after a perfusion of 50 microM 6-7-dinitroqui...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199204000-00002

    authors: Pujol R,Puel JL,Eybalin M

    更新日期:1992-04-01 00:00:00

  • Brain-based limitations in attention and secondary task engagement during high-fidelity driving simulation among young adults.

    abstract::Distracted driving remains a leading factor in fatal motor vehicle crashes, particularly in young drivers. Due to ongoing neuromaturation, attention capabilities are changing and improving throughout young adulthood. Here, we sought to bridge neuroscience with driving simulation by evaluating the effects of driving on...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/WNR.0000000000001451

    authors: Banz BC,Wu J,Camenga DR,Mayes LC,Crowley MJ,Vaca FE

    更新日期:2020-05-22 00:00:00

  • Brain regions supporting intentional and incidental memory: a PET study.

    abstract::Regional brain activity associated with intentional and incidental memory retrieval was studied with PET. Previously studied and new words were presented in either an intentional or an incidental memory task. Type of task was crossed with an encoding manipulation ('deep' vs 'shallow') which varied the probability that...

    journal_title:Neuroreport

    pub_type: 临床试验,杂志文章

    doi:10.1097/00001756-199703240-00045

    authors: Rugg MD,Fletcher PC,Frith CD,Frackowiak RS,Dolan RJ

    更新日期:1997-03-24 00:00:00

  • Evidence for a modulatory role of Ih on the firing of a subgroup of midbrain dopamine neurons.

    abstract::A previous investigation has suggested that the hyperpolarization-activated cation current Ih does not contribute to the spontaneous firing of midbrain dopaminergic neurons. This conclusion was reached using Cs(-1). We have re-examined this question with extracellular recordings in slices using the more specific block...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200102120-00015

    authors: Seutin V,Massotte L,Renette MF,Dresse A

    更新日期:2001-02-12 00:00:00

  • Decreased neurofilament gene expression is an index of selective axonal hypotrophy in ageing.

    abstract::Axonal atrophy may reflect earlier and more reversible events in neurodegeneration and ageing than somatic atrophy. Innervation density by sympathetic fibres from the rat superior cervical ganglion (SCG) to the middle cerebral artery (MCA) decreases dramatically in old age, while that to the iris is largely unchanged....

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199702100-00044

    authors: Kuchel GA,Poon T,Irshad K,Richard C,Julien JP,Cowen T

    更新日期:1997-02-10 00:00:00

  • Expression of the neuropeptide Y Y1 receptor mRNA in the human brain: an in situ hybridization study.

    abstract::Using cRNA in situ hybridization, the regional distribution of mRNA encoding the human Y1 receptor was investigated in the normal human brain and compared with the autoradiographic distribution of putative Y1/[125I][Leu31,Pro34]PYY binding sites. Surprisingly, relatively high levels of Y1 receptor mRNA, distributed in...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199604100-00020

    authors: Jacques D,Tong Y,Dumont Y,Shen SH,Quirion R

    更新日期:1996-04-10 00:00:00

  • Differential expression of Group I metabotropic glutamate receptors in motoneurons at low and high risk for degeneration in ALS.

    abstract::Glutamate excitotoxicity has been suggested to play a role in amyotrophic lateral sclerosis (ALS), yet it remains unclear why some groups of motoneurons (MNs) are more vulnerable to degeneration than others. Our aim was to compare, in normal adult rats, the expression of Group I metabotropic glutamate receptors (mGluR...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200107030-00027

    authors: Laslo P,Lipski J,Funk GD

    更新日期:2001-07-03 00:00:00

  • Modulation of auditory and visual cortex by selective attention is modality-dependent.

    abstract::Using functional magnetic resonance imaging (fMRI), we investigated whether the response of auditory and visual cortex was modulated by attending selectively to either heard or seen numbers presented simultaneously. Alternating attention between modalities modulated fMRI signal within the corresponding sensory cortex....

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-199608120-00007

    authors: Woodruff PW,Benson RR,Bandettini PA,Kwong KK,Howard RJ,Talavage T,Belliveau J,Rosen BR

    更新日期:1996-08-12 00:00:00

  • Auditory neural pathway evaluation on sensorineural hearing loss using diffusion tensor imaging.

    abstract::Diffusion tensor imaging is a new in vivo tool not only for the assessment of white matter structural integrity but also for diagnosis and assessment of disease conditions which disturb tissue structural coherence. In this study, we investigated the integrity of auditory pathway in patients of sensorineural hearing lo...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/01.wnr.0000134584.10207.1a

    authors: Chang Y,Lee SH,Lee YJ,Hwang MJ,Bae SJ,Kim MN,Lee J,Woo S,Lee H,Kang DS

    更新日期:2004-08-06 00:00:00

  • Lack of response to epidermal growth factor in adult neural progenitor cells.

    abstract::Neural progenitor/stem cells reside in the subventricular zone and dentate gyrus of the adult rat brain, which proliferate in response to several growth factors. Here we show that the neurospheres generated from the adult dentate gyrus and subventricular zone proliferate in vitro in response to fibroblast growth facto...

    journal_title:Neuroreport

    pub_type: 杂志文章

    doi:10.1097/00001756-200505310-00011

    authors: Kalluri HS,Vemuganti R,Dempsey RJ

    更新日期:2005-05-31 00:00:00