Abstract：
:We investigated the signal transmission pathway by which activation of μ-opioid receptors attenuates acetylcholine (ACh) release in bovine trachealis. Electrical stimulation (ES)-induced [(3)H]-ACh release was determined in bovine tracheal smooth muscle strips pre-incubated with either the Gi-protein inhibitor pertussis toxin (PTX, 500 ng/ml and 1 μg/ml) or the Gz-protein specific inhibitor arachidonic acid (AA, 10(-6)M and 10(-5)M) and then treated with DAMGO (D-Ala(2),N-MePhe(4),Gly-ol(5)-enkephalin) 10(-5)M. Indomethacin 10(-5)M was used to block AA cascade. The inhibitory effect of DAMGO on ES-induced [(3)H]-ACh release was PTX-insensitive, but, by contrast, ablated by AA in a concentration-dependent manner. AA 10(-5)M alone reduced [(3)H]-ACh release, an effect that was prevented by iberiotoxin 10(-7)M, suggesting an involvement of Ca(2+)-activated K(+)-channels. Western blot analysis consistently showed immunoreactive bands against a specific antibody anti-Gz-α subunit at ∼40 kDa, consistent with the presence of Gz-protein. The present findings suggest that in isolated bovine trachealis, activation of μ-opioid receptors inhibits ACh-release through a signal transmission pathway involving Gz-protein rather than Gi-protein.
journal_name
Respir Physiol Neurobioljournal_title
Respiratory physiology & neurobiologyauthors
Baroffio M,Brichetto L,Franco L,Crimi E,Rehder K,Brusasco Vdoi
10.1016/j.resp.2013.07.021subject
Has Abstractpub_date
2013-10-01 00:00:00pages
162-6issue
1eissn
1569-9048issn
1878-1519pii
S1569-9048(13)00265-6journal_volume
189pub_type
杂志文章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：:Technical limitations have precluded measurement of the V(O(2)) profile within contracting muscle (mV(O(2))) and hence it is not known to what extent V(O(2)) dynamics measured across limbs in humans or muscles in the dog are influenced by transit delays between the muscle microvasculature and venous effluent. Measurem...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/s1569-9048(02)00183-0
更新日期：2002-11-19 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：UNLABELLED:In seven patients with idiopathic or secondary pulmonary arterial hypertension (PAH), ventilation-perfusion (V (A)/Q ) relationships were measured during a right heart catheterization using the multiple inert-gas elimination technique before and during intravenous infusion with epoprostenol (EPO), and follow...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2007.03.003
更新日期：2007-08-15 00:00:00
abstract：:Recent studies in vivo and in vitro suggest that both respiratory rhythmogenesis and its central chemosensory modulation arise from multiple, mechanistically and/or anatomically distinct networks whose outputs are similar. These observations are consistent with degeneracy, defined as the ability of structurally distin...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2010.04.013
更新日期：2010-06-30 00:00:00
abstract：:In recent years, it has become evident that reactive oxygen species (ROS) play a critical role in the regulation of several physiological and pathophysiological processes. Herein we review the main sources, targets and pathophysiological roles of ROS in pulmonary vascular smooth muscle. Mitochondria and NADPH oxidases...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2010.08.009
更新日期：2010-12-31 00:00:00
abstract：:The lung surfactant dipalmitoylphosphatidylcholine (DPPC) most probably leaks into the blood, settling on the luminal aspect of blood vessels to create active hydrophobic spots (AHS). Nanobubbles are formed at these spots from dissolved gas. We hypothesized that when a large molecule in the blood comes into contact wi...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2020.103615
更新日期：2021-01-06 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：:Despite its necessity for understanding healthy brain aging, the influence of exercise intensity on cerebrovascular kinetics is currently unknown. We, therefore characterized middle cerebral artery blood flow velocity (MCAv) kinetics associated with two exercise intensities: low and moderate. We hypothesized that incr...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2019.01.013
更新日期：2019-04-01 00:00:00
abstract：:The aim of this study was to examine whether lung function and respiratory muscle strength are associated with weightlifting strength and body composition in non-athletic males. A total 51 males with resistance training experience participated. One-repetition maximum tests were performed for the bench press, squat and...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2021.103616
更新日期：2021-01-14 00:00:00
abstract：:We compared by non-invasive technique the adaptive response of alveolar capillary network to edemagenic conditions (exercise and high altitude [HA, PIO2 107mmHg] in subjects with different resting sea level (SL) capillary blood volume (normalized to alveolar volume, Vc/Va): Group 1 (N=10, Vc/Va=16.1±6.8ml/L- mean±SD) ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.08.021
更新日期：2014-01-01 00:00:00
abstract：:Asthma is a chronic inflammatory disease, with an array of cells involved in the pathogenesis of the disease. The role of neutrophils in the development of bronchial asthma is found to be complex, as they may trigger activation of immunocompetent cells and are a potent source of free oxygen radicals and enzymes partic...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2014.12.004
更新日期：2015-04-01 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：:The role of TRP channels in the ventilatory response to CO2 was investigated in vivo. To this end, the respiration of unrestrained adult TRPM8-, TRPV1- and TRPV4-channel knockout mice was measured using whole-body plethysmography. Under control conditions and hyperoxic hypercapnia, no difference in respiratory paramet...
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：:We hypothesized that progesterone may enhance the hypoxic ventilatory response and reduce the occurrence of apneas in newborn male rats. We studied 10-day-old rats chronically exposed to progesterone (Prog) or vehicle through the milk of lactating mothers. Respiratory and metabolic recordings were performed using whol...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2006.08.007
更新日期：2007-04-16 00:00:00
abstract：:Cystic fibrosis (CF) is caused by mutations in the CFTR (cystic fibrosis transmembrane conductance regulator) gene which is a Cl- channel and a regulator of the epithelial Na+ channel (ENaC). We have recently shown that newborn CFTR-deficient mice exhibit abnormalities of the tracheal cartilage leading to altered vent...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2011.06.006
更新日期：2011-09-15 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：:In obstructive sleep apnea (OSA) patients, inspiratory activation (IA) of lingual muscles protects the upper airway from collapse. We aimed to determine when rats' lingual muscles exhibit IA. In 5 Sprague-Dawley and 3 Wistar rats, we monitored cortical EEG and lingual, diaphragmatic and nuchal electromyograms (EMGs), ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.05.033
更新日期：2013-09-15 00:00:00
abstract：:Our aim was to investigate the role of microRNA on epithelial wound repair by global microRNA silencing. We have also analysed the influence of five miRNAs (miR-328, miR-342, miR-411, miR-609, miR-888, previously identified) on wound repair in 16HBE14o-bronchial epithelial cell line. Cells were transfected with siRNAs...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2017.03.010
更新日期：2017-08-01 00:00:00
abstract：:We hypothesize that isoflurane and ketamine impact ventilatory pattern variability (VPV) differently. Adult Sprague-Dawley rats were recorded in a whole-body plethysmograph before, during and after deep anesthesia. VPV was quantified from 60-s epochs using a complementary set of analytic techniques that included const...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2012.12.001
更新日期：2013-02-01 00:00:00
abstract：:During prolonged anoxia at low temperature, freshwater turtles develop high plasma concentrations of both lactate and calcium. At these concentrations the formation of the complex, calcium lactate, normally of little biological significance because of the low association constant for the reaction, significantly reduce...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章,评审
doi：10.1016/j.resp.2004.06.020
更新日期：2004-12-15 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：:Acetylcholine (ACh) acting through muscarinic receptors is thought to be involved in the control of breathing, notably in central and peripheral chemosensory afferents and in regulations related to sleep-wake states. By using whole-body plethysmography, we compared baseline breathing at rest and ventilatory responses ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2003.10.006
更新日期：2004-02-25 00:00:00
abstract：:Hyperventilation is one way to cause activation on the electroencephalogram (EEG) to diagnose brain disorders. The hyperventilation is also known to affect on the delta power in EEG. This study divided the total delta wave into low, middle, and high bands corresponding to the wave frequency. The power in these three d...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2012.02.010
更新日期：2012-04-30 00:00:00
abstract：:Haematological responses throughout 4 w of initial acclimation (IA) and three paradigms of re-acclimation (RA) to hypoxia (FI(O₂)) were examined in female mice. We hypothesised that (i) haematological responses would be increased during re-exposure, resulting in greater O₂-carrying capacity in RA compared to IA; and (...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2013.07.018
更新日期：2013-10-01 00:00:00
abstract：:To clarify the potential of dopamine to alter airway tone in the presence of different bronchoconstrictor stimuli, changes in airway function following dopamine administrations were characterized when the bronchial tone was elevated by stimulating the histaminic or cholinergic pathway. Airway resistance, tissue dampin...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2018.10.006
更新日期：2019-01-01 00:00:00
abstract：:Central histaminergic neurons are distributed in areas of the medulla and pons concerned with respiratory rhythm generation, but their effects on breathing pattern are unknown. We examined breathing pattern during hypercapnic responses in wild type (WT) and H1 receptor knockout (H1RKO) mice at 9-10 weeks of age before...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2004.07.016
更新日期：2004-11-30 00:00:00
abstract：:Neonatal bronchopulmonary dysplasia (BPD) might lead to an increased risk for brain injury. The present study aims to investigate the effects of neonatal BPD on neuronal apoptosis in the hippocampus and cognitive function and to explore the underlying mechanisms. The results revealed that BPD model rat pups exhibited ...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/j.resp.2015.09.011
更新日期：2016-01-01 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：:The dependence of metabolic rate (MR) on body mass (M) is described by the general allometric equation MR=aM(b), where, a is a proportionality coefficient and b is the mass exponent. Darveau et al. [Nature 417 (2002), 166] proposed a novel 'multiple-causes' allometric cascade model as a unifying principle of the scali...
journal_title：Respiratory physiology & neurobiology
pub_type： 杂志文章
doi：10.1016/s1569-9048(03)00027-2
更新日期：2003-04-15 00:00:00
