Abstract：
:Cervical spinal cord injury results in significant functional impairment. It is important to understand the neuroplasticity in response to inactivity of respiratory muscles in order to prevent any associated effects that limit functional recovery. Recent studies have examined the mechanisms involved in inactivity-induced neuroplasticity of diaphragm motor units. Both spinal hemisection at C2 (C2HS) and tetrodotoxin (TTX)-induced phrenic nerve blockade result in diaphragm paralysis and inactivity of axon terminals. However, phrenic motoneurons are inactive with C2HS but remain active after TTX. Diaphragm muscle fibers ipsilateral to C2HS display minimal changes post-injury. Neuromuscular transmission is enhanced following C2HS but impaired following TTX. Synaptic vesicle pool size at diaphragm neuromuscular junctions increases after C2HS, but decreases after TTX. Thus, inactivity-induced neuromuscular plasticity reflects specific adaptations that depend on inactivity at the motoneuron rather than at axon terminals or muscle fibers. These results indicate that neuromuscular transmission and functional properties of diaphragm fibers can be maintained after spinal cord injury, providing a substrate for functional recovery and/or specific therapeutic approaches such as phrenic pacing.
journal_name
Respir Physiol Neurobioljournal_title
Respiratory physiology & neurobiologyauthors
Mantilla CB,Sieck GCdoi
10.1016/j.resp.2009.09.002subject
Has Abstractpub_date
2009-11-30 00:00:00pages
133-40issue
2eissn
1569-9048issn
1878-1519pii
S1569-9048(09)00262-6journal_volume
169pub_type
杂志文章,评审abstract：:Ischemia-reperfusion injury is the major complication of abdominal aortic surgery, and it mainly affects the lower extremities and remote organs. In the present study, the electrophysiological alterations in diaphragm that underlie the post-operative respiratory dysfunction were investigated. Wistar Albino rats were r...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2016.12.015
更新日期：2017-04-01 00:00:00
abstract：:DLCO measured in hypoxia must be corrected due to the higher affinity (increase in coefficient θ) of CO with Hb. We propose an adjustment accounting for individual changes in the equation relating DLCO to subcomponents Dm (membrane diffusive capacity) and Vc (lung capillary volume): 1/DLCO=1/Dm+1/θVc. We adjusted the ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2016.08.009
更新日期：2017-04-01 00:00:00
abstract：INTRODUCTION:Nasal highflow (NHF) has a growing evidence in treatment of hypoxemic respiratory failure. There are preliminary data available about use in acute and chronic type-II-respiratory failure. Unfortunately underlying mechanisms of NHF are not well understood. Increase in airway pressure seems too small to expl...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2017.03.012
更新日期：2017-08-01 00:00:00
abstract：:Serotonin (5-HT), norepinephrine and orexins (ORX) are the three best established mediators of wake-related activation of hypoglossal (XII) motoneurons that innervate the muscles of the tongue. Since the tongue's use is temporarily closely aligned with the rest-activity cycle, we tested whether expression of mRNA for ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.04.024
更新日期：2013-09-15 00:00:00
abstract：:The neuropeptide relaxin-3 is expressed by the pontine nucleus incertus. Relaxin-3 and synthetic agonist peptides modulate arousal and cognitive processes via activation of the relaxin-family peptide 3 receptor (RXFP3). Despite the presence of RXFP3 in the nucleus of the solitary tract (NTS), the ability of RXFP3 to m...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2019.103310
更新日期：2020-01-01 00:00:00
abstract：:Normal development of the lung requires coordinated activation of cascades of signaling pathways initiated by growth factors signaling through their receptors. TrkB and its ligands, brain-derived neurotrophic factor (BDNF) and neurotrophin-4, belong to the neurotrophin family of growth factors, which are expressed in ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2009.06.001
更新日期：2009-07-31 00:00:00
abstract：:Recurrent sleep apnea (RSA), mimicking chronic intermittent hypoxia (CIH), may trigger unique adaptations in oxygen sensing in the carotid body, and consequent cellular functions unlike the effects of sustained hypoxia (SH). As a mechanism, an augmented generation of reactive oxygen species (ROS) in CIH has been invok...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/s0034-5687(01)00343-7
更新日期：2002-06-01 00:00:00
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journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2014.07.014
更新日期：2014-10-01 00:00:00
abstract：:The consequence of dysanapsis, quantitated by dysanapsis ratio (DR), on expiratory flow limitation (EFL) during exercise in pediatric subjects was examined. EFL occurred in 80 (56%) subjects from an enriched sample of children and adolescents tested during investigation of exertional dyspnea. DR was lower in subjects ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2018.03.013
更新日期：2018-06-01 00:00:00
abstract：:The Kölliker-Fuse Nucleus (KF) has been widely investigated for its contribution to "inspiratory off-switch" while more recent studies showed that activation of the Parabrachial Nucleus (PBN) shortened expiratory duration. This study used an adult, in vivo, decerebrate rabbit model to delineate the contribution of eac...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2020.103401
更新日期：2020-06-01 00:00:00
abstract：:The aim of this study was to evaluate the effect of early prophylactic caffeine treatment on white matter development in very preterm infants using cerebral magnetic resonance imaging. A total of 194 preterm infants (≤32 weeks gestational age) were randomly assigned to the caffeine (n = 96) or placebo (n = 93) treatme...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2020.103495
更新日期：2020-10-01 00:00:00
abstract：:Serotonin (5HT) is a powerful modulator of respiratory circuitry in vitro but its role in the development of breathing behavior in vivo is poorly understood. Here we show, using 5HT neuron-deficient Pet-1 (Pet-1(-/-)) neonates, that serotonergic function is required for the normal timing of postnatal respiratory matur...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2007.06.002
更新日期：2007-10-15 00:00:00
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journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2019.03.002
更新日期：2019-05-01 00:00:00
abstract：:The sensitization of cough reflex observed in patients with gastroesophageal reflux disease (GERD) is attributed to activation of vagal C-fibers innervating the esophagus by acid, while the heartburn in GERD is mediated by esophageal acid sensitive C-fibers derived from (dorsal root ganglia) DRG. Here we explored the ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2018.03.011
更新日期：2018-11-01 00:00:00
abstract：:Tyrosine kinase inhibitors (TKI), erlotinib and gefitinib are small molecule inhibitors which are used for the treatment of lung cancer. But, the development of drug resistance has been reported as one of the major setbacks in oncology. This study focused on the mechanisms leading to secondary resistance by assessing ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2014.09.022
更新日期：2015-04-01 00:00:00
abstract：:At high altitude, hypoxia amplifies oxyhemoglobin saturation (SPO2) swings with changes in respiratory mechanics. Our objective was to examine the effects of posture on SPO2 and determine predictors of postural SPO2 changes in highlanders. 50 native highlanders from Puno, Peru (3825 m) assumed supine and upright-seate...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2019.04.015
更新日期：2019-08-01 00:00:00
abstract：:The glycine receptor α3 subunit is known to be a target for cAMP/PKA-mediated phosphorylation and regulation. Mice that lack this subunit are apparently normal but the 5-HT1A-receptor mediated modulation of respiratory network activity is disturbed. Since the intracellular cAMP-concentration is reduced in mice that la...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2017.11.011
更新日期：2018-01-01 00:00:00
abstract：:It is well established that women exhibit several anatomic and physiologic characteristics that distinguish their responses to exercise from those of men. These factors have been shown to influence the training response and contribute to lower maximal aerobic power in women. Additionally, the reproductive hormones, es...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2005.10.010
更新日期：2006-04-28 00:00:00
abstract：:Evidence from liquid-filled rat lungs supported the presence of CO2-dependent, active relaxation of parenchyma under normoxia by unknown mechanisms (Emery et al., 2007). This response may improve matching of alveolar ventilation (V˙A) to perfusion (Q˙) by increasing compliance and V˙A in overperfused (high CO2) region...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2012.12.014
更新日期：2013-03-01 00:00:00
abstract：:How the involuntary (bulbospinal) and voluntary (corticospinal) pathways interact in respiratory muscle control is not established. To determine the role of excitatory corticobulbar pathways in humans, studies typically compare electromyographic activity (EMG) or evoked responses in respiratory muscles during hypercap...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2019.103353
更新日期：2020-03-01 00:00:00
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journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2006.11.005
更新日期：2007-05-14 00:00:00
abstract：:Serotonergic (5-HT) neurons are putative central respiratory chemoreceptors, aiding in the brain's ability to detect arterial changes in PCO2 and implement appropriate ventilatory responses to maintain blood homeostasis. These neurons are in close proximity to large medullary arteries and are intrinsically chemosensit...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2009.04.014
更新日期：2009-08-31 00:00:00
abstract：:Dietary inorganic nitrate supplementation causes physiological effects which may enhance exercise tolerance. However it is not known whether nitrate might alter cognitive function during exercise. In a double-blind, cross-over study, sixteen subjects ingested either nitrate-rich beetroot juice or a placebo and complet...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.12.015
更新日期：2014-03-01 00:00:00
abstract：:The mechanisms of cough in asthma are unclear. Asthma is associated with an oxidative stress. Many reactive oxygen species sensitize or activate sensory C-fibers which are capable to induce cough. It was hypothesized that oxidative stress in the airways might contribute to the cough severity in asthma. Exhaled breath ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2012.04.006
更新日期：2012-05-31 00:00:00
abstract：:Quality of life and prognosis of patients with myotonic dystrophy type 1 (MD1) often depend on the degree of lung function impairment. This study was designed to assess the respective prevalence of ventilatory restriction, hypoxaemia and hypercapnia in MD1 patients and to determine whether postural changes in lung fun...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2014.01.006
更新日期：2014-03-01 00:00:00
abstract：:Chronic mountain sickness (CMS) is considered to be a loss of ventilatory acclimatization to high altitude (>2500m) resulting in marked arterial hypoxemia and polycythemia. This case-control study explores the possibility that sleep-disordered breathing (SDB) and associated oxidative stress contribute to the etiology ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.01.016
更新日期：2013-04-01 00:00:00
abstract：:Asthma independently increases the risk of developing cardiovascular disease. As inhaled β-agonists have systemic cardiovascular effects, and elevations in arterial stiffness and sympathetic nerve activity are associated with increased cardiovascular morbidity/mortality, this study examines the effect of salbutamol us...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2016.05.014
更新日期：2016-09-01 00:00:00
abstract：:Amyotrophic lateral sclerosis (ALS) is a fatal, progressive neurodegenerative disease. ALS selectively causes degeneration in upper and lower (spinal) motor neurons, leading to muscle weakness, paralysis and death by ventilatory failure. Although ventilatory failure is generally the cause of death in ALS, little is kn...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2013.05.016
更新日期：2013-11-01 00:00:00
abstract：:Respiratory rhythm generators appear both evolutionarily and developmentally as paired segmental rhythm generators in the reticular formation, associated with the motor nuclei of cranial nerves V, VII, IX, X, and XII. Those associated with the Vth and VIIth motor nuclei are "pontine" in origin and in fishes that emplo...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2004.05.008
更新日期：2004-11-15 00:00:00
abstract：:Not long ago, urea was believed to freely diffuse across plasma membranes. The discovery of specialized proteins to facilitate the movement of urea across the fish gill, similar to those found in mammalian kidney, was exciting, and at the same time, perplexing; especially considering the fact that, aside from elasmobr...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2012.06.002
更新日期：2012-12-01 00:00:00
