Abstract:
:Nitric oxide (NO) hyperpolarizes vascular smooth muscle cells and dilates blood vessels of various beds, but little is known on cochlear vasculatures. Using in vitro preparations of the spiral modiolar artery (SMA), intracellular electrical recording and labeling techniques, we found that the NO donor DPTA-NONOate (10 microM) caused a hyperpolarization of approximately 9 mV in all the cells that had a low resting potential (RP) level near -40 mV. The hyperpolarization amplitude was concentration-dependent, with a 50% effect concentration (EC(50)) of 1 microM. The responses occur in both smooth muscle and endothelial cells, neither of which was blocked by 18beta-glycyrrhetinic acid. The induced hyperpolarization was completely blocked by glipizide, but not by charybdotoxin, apamin, barium, 4-aminopyridine or tetraethylammonium. The hyperpolarizing responses were imitated by pinacidil (EC(50)=30 microM). The pinacidil-induced response was also blocked by glipizide but not by the other K(+) channel blockers mentioned above. Both DPTA-NONOate and pinacidil had little membrane potential effect on cells that had a high RP level near -75 mV. However, when the high RP cells were depolarized to a level beyond -45 mV by barium, both DPTA-NONOate and pinacidil hyperpolarized these cells not differently from those that initially had a low RP. It is concluded that NO hyperpolarizes the SMA primarily by activating K(ATP) channels in both muscle and endothelial cells.
journal_name
Hear Resjournal_title
Hearing researchauthors
Si JQ,Zhao H,Yang Y,Jiang ZG,Nuttall ALdoi
10.1016/s0378-5955(02)00497-5keywords:
subject
Has Abstractpub_date
2002-09-01 00:00:00pages
167-176issue
1-2eissn
0378-5955issn
1878-5891pii
S0378595502004975journal_volume
171pub_type
杂志文章相关文献
HEARING RESEARCH文献大全abstract::The presence of dopamine (DA) within the cochlea has been previously reported, indicating that its turnover increases under noise stimulation. In the present report, piribedil, a dopaminergic D2 agonist, was used in order to provide evidence of the activity of D2 receptors in the turnover of DA under noise stimulation...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(94)90138-4
更新日期:1994-09-01 00:00:00
abstract::Noise, hearing loss, and electronic signal distortion, which are common problems in military environments, can impair speech intelligibility and thereby jeopardize mission success. The current study investigated the impact that impaired communication has on operational performance in a command and control environment ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2016.10.007
更新日期:2017-06-01 00:00:00
abstract::Most previous reports of ototoxicity following exposure to several volatile organic solvents have restricted testing to the low- and mid-frequencies (2-20 kHz) of the hearing range in the rat (0.25-80 kHz). We report here that inhalation exposure to styrene, mixed xylene, toluene, and 1,1,2-trichloroethylene resulted ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(94)90005-1
更新日期:1994-10-01 00:00:00
abstract::To investigate the audio-vocal feedback responses of (F0) to hearing amplification in severe-to-profound prelingual hearing loss (SPHL) using power spectral analysis of F0 contour of sustained vowels. Sustained phonations of vowel/a/of seventeen participants with SPHL were acquired with and without hearing-aid amplifi...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2013.04.010
更新日期:2013-08-01 00:00:00
abstract::The cochlear microphonic (CM) is produced by a change in standing currents during the motion of the cochlear partition. The motion of the partition and associated hair cell transduction processes are nonlinear and are reflected in the variation of the instantaneous frequency (IF) of the CM. Although the CM is dominate...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(02)00642-1
更新日期:2002-12-01 00:00:00
abstract::Guinea pigs were exposed to 120 dB white noise for 30 min and evidenced a four-fold elevation in plasma concentration of the potent vasoconstricting hormone angiotensin II (AII). Anesthetized animals received intra-arterial injections of AII at doses that approximated the endogenous levels measured following noise exp...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(85)90128-5
更新日期:1985-01-01 00:00:00
abstract::Although the neural mechanisms underlying pitch perception are not yet fully understood, there is general agreement that place and temporal representations of pitch are both used by the auditory system. This paper describes a neural network model of pitch perception that integrates both codes of pitch and explores the...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2016.11.005
更新日期:2017-02-01 00:00:00
abstract::This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2009.09.016
更新日期:2009-10-07 00:00:00
abstract::A large sample of threshold tuning curves of single units from various levels of the auditory pathway was used in order to examine the relationship between best frequency and a measure of sharpness of tuning. This measure is simply the tuning curve bandwidth at 20 dB above threshold on a square-root scale of frequency...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(83)90070-9
更新日期:1983-09-01 00:00:00
abstract::Averaged auditory evoked potentials (AEPs) to bilaterally presented 100 Hz click trains were recorded from multiple sites simultaneously within Heschl's gyrus (HG) and on the posterolateral surface of the superior temporal gyrus (STG) in epilepsy-surgery patients. Three auditory fields were identified based on AEP wav...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2007.11.012
更新日期:2008-04-01 00:00:00
abstract::Human subjects performed in several behavioral conditions requiring, or not requiring, selective attention to visual stimuli. Specifically, the attentional task was to recognize strings of digits that had been presented visually. A nonlinear version of the stimulus-frequency otoacoustic emission (SFOAE), called the nS...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2014.03.013
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Noise-induced hearing loss (NIHL) is a multifactorial disease, and dysregulation of oxidative stress is universally acknowledged as one crucial pathogenic factor for this disease. Recently studies have found the LncRNA HOTAIR is involved in the alteration of oxidative stress level, cell proliferation, cell c...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2017.02.007
更新日期:2017-04-01 00:00:00
abstract::Mice of the C57BL/6J (B6) inbred strain exhibit genetic progressive sensorineural hearing loss and have been widely used as a model of adult-onset hearing loss and presbycusis. Males and females exhibit similar degrees of hearing loss until about 3 months of age, after which, the loss accelerates in females. This pape...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2008.12.002
更新日期:2009-06-01 00:00:00
abstract::Pairs of single units were recorded simultaneously from the same microelectrode in the medial geniculate body (MGB) of nitrous oxide anaesthetized cats. Crosscorrelation histograms of each spike train pairs were computed and distributed in five main classes, interpreted in terms of functional interaction between neigh...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(87)90093-1
更新日期:1987-01-01 00:00:00
abstract::Subjective tinnitus may be defined as the perceptual correlate of altered spontaneous neural activity occurring in the absence of an externally evoking auditory stimulus. Tinnitus can be caused or exacerbated by one or more of five forms of stress. We propose and provide evidence supporting a model that explains, but ...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/s0378-5955(00)00235-5
更新日期:2001-02-01 00:00:00
abstract::Temporal modulation transfer functions (TMTF) were obtained from four European starlings (Sturnus vulgaris) using a psychophysical Go/NoGo procedure combined with the method of constant stimuli. The TMTF for a continuous, broad-band noise of 55 dB SPL had a low-pass characteristic with a cut-off frequency of 123 Hz. F...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(91)90182-9
更新日期:1991-03-01 00:00:00
abstract::In response to low-intensity, low-frequency, phase-locked tonal stimuli with non-alternating polarity, the time-average round window (RW) response of the gerbil is a mixture of the auditory nerve neurophonic (ANN) and cochlear microphonic (CM), with the former often being of equal or greater magnitude than the latter....
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(96)00195-5
更新日期:1997-02-01 00:00:00
abstract::Validity of the neurophysiological model of tinnitus (Jastreboff, 1990), outlined in this paper, was tested on data from multicenter trial of tinnitus masking (Hazell et al., 1985). Minimal masking level, intensity match of tinnitus, and the threshold of hearing have been evaluated on a total of 382 patients before an...
journal_title:Hearing research
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/0378-5955(94)90113-9
更新日期:1994-11-01 00:00:00
abstract::Left ear noise-induced hearing losses are dominant in the army. The common explanation is the asymmetrical effect of the shooting posture. However, firm evidence to support this possibility is still lacking. In the French army shooters, eye preference rather than hand preference for shooting determines the side of sho...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(98)00104-x
更新日期:1998-08-01 00:00:00
abstract::The focus of this study was to gauge the influence of intervening interference on an intensity standard held within auditory working memory through measurement of the just noticeable difference (JND) for intensity. Additionally, the use of interaural phase differences and interaural level differences as spatial cues w...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2008.04.004
更新日期:2008-06-01 00:00:00
abstract::Little is known about inner ear development in pigeons. This paper addresses the question of maturation in activity patterns of pigeon auditory nerve fibres, Pigeons that were 1, 2 and 4 weeks and 1, 2, 3 and 4 years old were investigated. Adult-like activity patterns are found 4 weeks post-hatching. Spontaneous activ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(96)00020-2
更新日期:1996-05-01 00:00:00
abstract::In natural environments, temporally complex signals often occur in a background of noise. The neural mechanisms underlying the preservation of temporal sensitivity in background noise are poorly understood. In the present study, we examined the ability of inferior colliculus (IC) units with primary-like and sustained ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(00)00186-6
更新日期:2000-12-01 00:00:00
abstract::Hearing aid (HA) users can differ markedly in their benefit from directional processing (or beamforming) algorithms. The current study therefore investigated candidacy for different bilateral directional processing schemes. Groups of elderly listeners with symmetric (N = 20) or asymmetric (N = 19) hearing thresholds f...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2017.07.014
更新日期:2017-09-01 00:00:00
abstract::We developed a new technique, the isolated in vitro perfused spiral modiolar artery, which allowed the continuous measurement of the vascular diameter and control of the intravascular pressure. An isolated section of the spiral modiolar artery from the gerbil was perfused on one end with a set of concentric pipettes a...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(97)00184-6
更新日期:1998-01-01 00:00:00
abstract::Mitochondrial DNA (mtDNA) mutations/deletions are considered to be associated with the development of age-related hearing loss (AHL). We assessed the role of accumulation of mtDNA mutations in the development of AHL using Polg(D257A) knock-in mouse, which exhibited increased spontaneous mtDNA mutation rates during agi...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/j.heares.2006.06.004
更新日期:2007-04-01 00:00:00
abstract::This study introduces and evaluates a method for measurement of the longitudinal spread of electrically evoked neural excitation in the cochlea, using the Neural Response Telemetry system (NRT) available with the Nucleus((R)) 24 cochlear implant system. The recently released version of the NRT software (version 3.0) e...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(03)00096-0
更新日期:2003-05-01 00:00:00
abstract::There is accumulating evidence for a purinergic humoral system involved in the control of cochlear function. Evidence of specific P2 purinoceptors on cochlear tissues implies a role for extracellular adenosine triphosphate (ATP) in the cochlea. To further this hypothesis a study was undertaken to determine if there wa...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(95)00151-1
更新日期:1995-10-01 00:00:00
abstract::Older adults, even with clinically normal hearing sensitivity, have auditory perceptual deficits relative to their younger counterparts. This difficulty may in part, be related to a decline in the neural representation of frequency. The purpose of this study was to examine the effect of age on behavioral and physiolog...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2009.11.010
更新日期:2010-06-01 00:00:00
abstract::In mammals, the cochlear sensory epithelium becomes quiescent early during development. After the first postnatal week, there is no cell replacement or proliferation, and severe damage leads to permanent deafness. Supporting cells' trans-differentiation has been suggested as a way to regenerate cochlear hair cells aft...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2018.12.002
更新日期:2019-03-01 00:00:00
abstract::Polyclonal antibodies were raised in chickens to the glycosylated forms of the high (H), medium (M) and low (L) molecular mass (MM) mouse tectorins. In the mouse cochlea, all three antibodies stained the tectorial membrane. Antibodies raised to HMM tectorin also stained the hair bundles of both inner and outer hair ce...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(96)00174-8
更新日期:1997-01-01 00:00:00