Abstract：
:In response to the increase in oxygen tension at birth, the resistance pulmonary arteries dilate, while the ductus arteriosus constricts. Although modulated by the endothelium, these opposite responses are intrinsic to the vascular smooth muscle. While still controversial, it seems likely that during normoxia the production of reactive oxygen species (ROS) increases and the smooth muscle cell cytoplasm is more oxidized in both pulmonary arteries and ductus, compared to hypoxia. However, the effect of changes in the endogenous redox status or the addition of a redox agent, oxidizing or reducing, is exactly opposite in the two vessels. A reducing agent, dithiothreitol, like hypoxia, in the pulmonary artery will inhibit potassium current, cause depolarization, increase cytosolic calcium and lead to contraction. Responses to dithiothreitol in the ductus are opposite and removal of endogenous H(2)O(2) by intracellular catalase in the ductus increases potassium current. Oxygen sensing in both vessels is probably mediated by redox effects on both calcium influx and calcium release from the sarcoplasmic reticulum (SR).
journal_name
Respir Physiol Neurobioljournal_title
Respiratory physiology & neurobiologyauthors
Weir EK,Hong Z,Porter VA,Reeve HLdoi
10.1016/s1569-9048(02)00054-xkeywords:
subject
Has Abstractpub_date
2002-08-22 00:00:00pages
121-30issue
1eissn
1569-9048issn
1878-1519pii
S156990480200054Xjournal_volume
132pub_type
杂志文章,评审abstract：:Inconsistent findings regarding the experimental nasal obstruction on respiratory functions in small animals have been reported. The purpose of this study was to investigate the impact of short term forced oral breathing on respiratory functions as well as the therapeutic implication of esophageal intubation in BALB/c...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2014.09.024
更新日期：2015-01-01 00:00:00
abstract：:Amyotrophic Lateral Sclerosis (ALS) is a devastating neurodegenerative disorder that results in death due to respiratory failure. Many genetic defects are associated with ALS; one such defect is a mutation in the gene encoding optineurin (OPTN). Using an optineurin null mouse (Optn-/-), we sought to characterize the i...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2020.103525
更新日期：2020-11-01 00:00:00
abstract：:Embryo-environment interactions affecting cardio-respiratory development in vertebrates have been extensively studied, but an equally extensive conceptual framework for interpreting and interrelating these developmental events has lagged behind. In this review, we consider the conceptual constructs of "developmental p...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2011.05.001
更新日期：2011-08-31 00:00:00
abstract：:Intermittent hypoxia induces plasticity in neural networks controlling breathing and cardiovascular function. Studies demonstrate that mechanisms causing cardiorespiratory plasticity rely on intracellular signalling pathways that are activated by specific neurotransmitters. Peptides such as serotonin, PACAP and orexin...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2016.03.012
更新日期：2016-06-01 00:00:00
abstract：:The intrinsic positive-end-expiratory pressure (PEEPi) increases the inspiratory load, the cost of breathing and thus oxygen consumption (V(O2)). It has been shown that applying an extrinsic positive-end-expiratory pressure (PEEPe) reduces the inspiratory threshold load but the optimal PEEPe level is still in debate. ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2004.10.001
更新日期：2005-04-15 00:00:00
abstract：:In Wild Type (WT) and serotonin transporter (5HTT) null mice, we studied oxygen consumption, ventilation and heart rate in air and 5% CO(2) at postnatal (P) days P5, P15, and P25 using either a head-out (younger mice) or whole body plethysmograph (older mice). Body weight and temperature did not differ between the gro...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2011.02.006
更新日期：2011-06-30 00:00:00
abstract：:The adult elephant is unique among mammals in that the pleural membranes are thickened and the pleural cavity is obliterated by connective tissue. It has been suggested that this peculiar anatomy developed because the animal can snorkel at depth, and this behavior subjects the microvessels in the parietal pleura to a ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/s1569-9048(03)00199-x
更新日期：2003-11-14 00:00:00
abstract：:We previously showed that medroxyprogesterone acetate (MPA) effectively decreases the arterial CO(2) levels in postmenopausal women with partial upper airway obstruction. The aim of the present study was to analyze the effects of MPA on the inspiratory flow shapes during sleep. Eight postmenopausal women with hypoxemi...
journal_title：Respiratory physiology & neurobiology
pub_type： 临床试验,杂志文章
doi：10.1016/s1569-9048(02)00208-2
更新日期：2003-03-03 00:00:00
abstract：:In day 15 chicken embryos, we determined the time course responses of acid-base balance and hematological respiratory variables during 24h exposure to 15, 20, 40 or 90% O(2), in the presence of 5% CO(2). Hypercapnic respiratory acidosis was initially (2h) only slightly (∼20%) compensated by metabolic alkalosis in norm...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2012.10.002
更新日期：2013-01-15 00:00:00
abstract：:This study investigated the effects of 5 weeks of expiratory muscle strength training (EMST) on sleep apnea, sleep quality, and respiratory muscle strength in patients with different levels of obstructive sleep apnea (OSA). Twenty-five outpatients who received a diagnosis of OSA participated in the study and were assi...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.resp.2017.05.007
更新日期：2017-09-01 00:00:00
abstract：:This review will focus on neural plasticity and recovery of respiratory function after spinal cord injury and feature the "crossed phrenic phenomenon" (CPP) as a model for demonstrating such plasticity and recovery. A very brief summary of the earlier literature on the CPP will be followed by a more detailed review of...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2009.06.005
更新日期：2009-11-30 00:00:00
abstract：:The mechanisms involved in the pathogenesis of pulmonary arterial hypertension (PAH) remain unclear. Nitric oxide (NO) centrally attenuates sympathetic outflow and, therefore, may chronically modulate pulmonary arterial pressure (PAP), especially during the development of chronic hypoxia-induced PAH. To test this hypo...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2005.12.002
更新日期：2006-10-27 00:00:00
abstract：BACKGROUND:The inhalation of silicon dioxide (SiO2) particles causes silicosis, a stubborn pulmonary disease that is characterized by alveolar inflammation during the early stage. Soluble cytokine receptors (SCRs) play important roles in regulating inflammation by either attenuating or promoting cytokine signaling. How...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2017.08.015
更新日期：2018-01-01 00:00:00
abstract：:Maximal O(2) consumption (V(O)(2) max) is an index of integrated cardiopulmonary function. After having defined it, discussed its limitation, and described its measurement, we present data during and after space flight and simulation. During gravity withdrawal, V(O)(2) max stays unchanged. It suddenly drops when the s...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2009.03.012
更新日期：2009-10-01 00:00:00
abstract：BACKGROUND:A sustained elevation in respiratory drive following removal of the inducing stimulus is known as respiratory long-term facilitation (rLTF). We investigated whether an acute exposure to intermittent negative airway pressure (INAP) elicits rLTF in humans. METHOD:13 healthy males (20.9 ± 2.8 years) undertook ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2019.05.016
更新日期：2019-09-01 00:00:00
abstract：:Low oxygen sensing in chemoreceptor cells involves the inhibition of specific plasma membrane K(+) channels, suggesting that mitochondria-derived reactive oxygen species (ROS) link hypoxia to K(+) channel inhibition, subsequent cell depolarization and activation of neurotransmitter release. We have used several mitoch...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2008.10.020
更新日期：2009-01-01 00:00:00
abstract：:This study tested the hypothesis that apnoea index would be greater during daytime sleep than nighttime sleep in the rat. Electroencephalogram and electromyogram were monitored via biotelemetry implant and respiration was measured using whole body plethysmography in six male rats in two separate 34h recording sessions...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2006.02.007
更新日期：2006-12-01 00:00:00
abstract：:Hypertrophy of lymphoid tissue within the throat in children leads to a number of respiratory problems and sleep disorders. The aim of this study was to evaluate the prevalence of the above-mentioned changes depending on the location of overgrown lymphoid tissue, BMI, and coexisting allergies. The study was based on a...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.02.010
更新日期：2013-06-01 00:00:00
abstract：:Apnea after exercise may evoke a neurally mediated conflict that may affect apneic time and create a cardiovascular strain. The physiological responses, induced by apnea with face immersion in cold water (10 °C), after a 3-min exercise bout, at 85% of VO2max,were examined in 10 swimmers. A pre-selected 40-s apnea, com...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2015.07.014
更新日期：2016-01-01 00:00:00
abstract：:Aquaporins (AQPs) are small, integral membrane proteins that facilitate water transport across cell membranes in response to osmotic gradients. Water transport across epithelia and endothelia in the peripheral lung and airways occurs during airway hydration, alveolar fluid transport and submucosal gland secretion. Sev...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2007.02.012
更新日期：2007-12-15 00:00:00
abstract：:Anatomically accurate 3D models of 10 healthy nasal cavities are developed from computerized tomography (CT) scan images. Considering anatomical and physiological importance of different parts of the nasal cavity, the surface of each nasal passage is divided to eleven anatomical surfaces. Also the coronal cross sectio...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2020.103480
更新日期：2020-09-01 00:00:00
abstract：:To assess the occurrence of tidal expiratory flow limitation (EFL) and/or dynamic pulmonary hyperinflation (DH) in chronic heart failure (CHF) during exercise 15 patients with stable systolic CHF, aged 69 ± 6yr, underwent pulmonary function testing and incremental cardio-pulmonary exercise testing. They subsequently p...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.06.017
更新日期：2013-10-01 00:00:00
abstract：:This investigation examined the effects of a six-week inspiratory resistance training (IRT) on metabolic health biomarkers, pulmonary function, and endurance in obese individuals. Twenty-eight obese adults (BMI > 27 kg/m2 Taiwan obesity criteria) were randomly assigned to either IRT (IRT; N = 16) or sham control (PLA;...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.resp.2019.103285
更新日期：2020-02-01 00:00:00
abstract：:We investigated the effects of salbutamol on the markers of epithelial function in a murine model of chronic allergic pulmonary inflammation by recording the ciliary beat frequency (CBF) and the transepithelial potential difference (PD) in vivo. Mice were sensitized and received four challenges of ovalbumin (OVA group...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2011.03.016
更新日期：2011-07-31 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：:Hypoglossal motoneurons are influenced by a variety of neuromodulators, some of which change dynamically across sleep-wake states to alter motoneuron excitability and responses to pharmacological manipulations. Determining the mechanisms underlying the modulation of hypoglossal motoneurons during sleep is relevant to ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2008.06.012
更新日期：2008-12-10 00:00:00
abstract：:We have previously shown that mice with near-complete absence of 5-HT neurons (Lmx1bf/f/p) display a blunted hypercapnic ventilatory response (HCVR) and impaired cold-induced thermogenesis, but have normal baseline ventilation (), core body temperature (TCore) and hypoxic ventilatory responses (HVR) at warm ambient te...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2008.08.003
更新日期：2008-12-31 00:00:00
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-indu...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2009.09.002
更新日期：2009-11-30 00:00:00
abstract：:Slices of rat carotid bodies, or cultured glomus cells, were used to study intercellular coupling. This phenomenon occurs because gap junctions allow passage of currents and dyes from one cell to another. There is a two-way resistive coupling between glomus cells (GC/GC coupling), which is accompanied by activity of i...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2007.01.013
更新日期：2007-07-01 00:00:00
abstract：:Sleep disordered breathing (SDB) with recurrent apnea is a major health problem affecting several million adult men and women. Humans with SDB are prone to develop hypertension. Studies on rodents established that exposure to chronic intermittent hypoxia (CIH) alone is sufficient to induce hypertension similar to that...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2015.01.001
更新日期：2015-04-01 00:00:00
