Abstract:
:Bushy cells of the ventral cochlear nucleus produce a single, short latency action potential at the beginning of long depolarisations. In the present work an immunochemical survey was performed to detect the presence of K+ channel subunits which may contribute to the specific membrane properties of the bushy cells. The immunocytochemical experiments conducted on enzymatically isolated bushy cells indicated positive immunolabelling for several subunits known to be responsible for the genesis of rapidly inactivating K+ currents. Bushy cells showed strong expression of Kv3.4, 4.2 and 4.3 subunits, with the lack of Kv1.4 specific immunoreaction. The Kv3.4-specific immunoreaction had a specific, patchy appearance. Bushy cells also expressed various members of the Kv1 subunit family, most notably Kv1.1, 1.2, 1.3 and 1.6. Weak positivity could be observed for Kv3.2 subunits. The positive immunolabelling for Kv3.4, Kv4.2 and Kv4.3 was confirmed in free-floating tissue slices. Voltage-clamp experiments performed on positively identified bushy cells in brain slices corroborated the presence and activity of Kv3.4 and Kv4.2/4.3 containing K+ channels. Bushy cell showed strong immunopositivity for TASK-1 channels too. The results presented in this work indicate that bushy cells possess several types of voltage-gated K+ channel subunits whose activity may contribute to the membrane properties and firing characteristics of these neurones.
journal_name
Hear Resjournal_title
Hearing researchauthors
Pál B,Pór A,Pocsai K,Szücs G,Rusznák Zdoi
10.1016/j.heares.2004.07.020keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
57-70issue
1-2eissn
0378-5955issn
1878-5891pii
S0378-5955(04)00240-0journal_volume
199pub_type
杂志文章相关文献
HEARING RESEARCH文献大全abstract::Distortion product otoacoustic emission (DPOAE) iso-suppression tuning curves (STC) were generated in 15 normal-hearing adults and 16 healthy term-born neonates for three f2 frequencies. The 2f1-f2 DPOAE was elicited using f2/f1 = 1.2, LI = 1.2, LI = 65 and L2 = 50 dB SPL. A suppressor tone was presented at frequencie...
journal_title:Hearing research
pub_type: 临床试验,杂志文章
doi:10.1016/0378-5955(96)00056-1
更新日期:1996-09-01 00:00:00
abstract::Eye color may be an indicator of inner ear melanin content and has been associated with hearing loss. There is controversy as to whether eye color has an effect on acquired causes of sensorineural hearing loss. This review was conducted to analyze the literature evaluating the relationship between eye color and causes...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/j.heares.2014.12.002
更新日期:2015-02-01 00:00:00
abstract::Eighth nerve endings and neuronal types in the nucleus magnocellularis were analyzed in the red-eared turtle (Chrysemys scripta elegans). One group of turtles had horseradish peroxidase (HRP) injected into the surgically exposed inner ear. Following injection the animals survived for 3-5 days and then their 8th nerve ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(88)90156-6
更新日期:1988-06-01 00:00:00
abstract::A simple model for the acoustic enhancement of electrically evoked otoacoustic emissions (EEOEs) is presented in this paper. The model is based on the assumption that the enhancement is a result of the local interaction between the electrical current spreading in the scala media and the basilar membrane (BM) response ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(95)00175-1
更新日期:1995-11-01 00:00:00
abstract::Cochlear serotonergic innervation is constituted by efferent fibers projecting both to the area below the inner and the outer hair cells. Previous detection of serotonin (5-HT) metabolites and 5-HT receptor mRNAs suggests the existence of serotonergic synaptic activity in the cochlea. The present study explores this p...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(03)00140-0
更新日期:2003-08-01 00:00:00
abstract::Previous studies have shown a reduction of the ototoxicity of furosemide in chinchillas pretreated with organic acid transport inhibitors. The current studies were designed to investigate whether such a protective effect could be observed in chinchillas receiving ethacrynic acid. Chinchillas weighing 400-600 g were in...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(90)90142-c
更新日期:1990-06-01 00:00:00
abstract::The present study examined synaptic potentials of neurons in inferior colliculus (IC) cortex slice and the roles of GABA and glutamate receptors in generating these potentials. Multipolar (82%) and elongated (18%) cells were observed with intracellular biocytin staining. Electrical stimulation of the IC commissure (Co...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(99)00129-x
更新日期:1999-11-01 00:00:00
abstract::The US Navy, through an Office of Naval Research (ONR) lead effort on Noise Induced Hearing Loss (NIHL), is investigating methods and techniques to mitigate hearing loss for the crews and warfighters. Hearing protection is a viable and increasingly popular method of reducing hearing exposure for many ship crew members...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2017.01.004
更新日期:2017-06-01 00:00:00
abstract::Auditory prostheses use implanted electrode arrays that permit stimulation at many sites along the tonotopic axis of auditory neurons. Psychophysical studies demonstrate that measures of implant function, such as detection and discrimination thresholds, vary considerably across these sites, that the across-site patter...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2007.11.007
更新日期:2008-08-01 00:00:00
abstract::In this paper we reconsider the designation of fishes as being either "hearing specialists" or "hearing generalists," and recommend dropping the terms. We argue that this classification is only vaguely and variously defined in the literature, and that these terms often have unclear and different meaning to different i...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2009.12.023
更新日期:2011-03-01 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::Older adults are often reported in the literature to have greater difficulty than younger adults understanding speech in noise [Helfer and Wilber (1988). J. Acoust. Soc. Am, 859-893]. The poorer performance of older adults has been attributed to a general deterioration of cognitive processing, deterioration of cochlea...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2014.09.001
更新日期:2014-11-01 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::Cochlear implant users with ipsilateral residual hearing combine acoustic and electric hearing in one ear, this is called electric-acoustic stimulation (EAS). In EAS users, masking can be shown for electric probes in the presence of acoustic maskers and vice versa. Masking effects in acoustic hearing are generally att...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2019.107873
更新日期:2020-02-01 00:00:00
abstract::The laminar distribution and reciprocity of commissural axon terminals and cells of origin in cat primary auditory cortex (AI) were studied after injections of tritiated proline combined with horseradish peroxidase in the middle ectosylvian gyrus. Terminal fields were found in every cortical layer in the contralateral...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(86)90110-3
更新日期:1986-01-01 00:00:00
abstract::Mutations of the otoferlin gene have been shown to underlie deafness disorders in humans and mice. Analyses of genetically engineered mice lacking otoferlin have demonstrated an essential role for this protein in vesicle exocytosis at the inner hair cell afferent synapse. Here, we report on the molecular and phenotypi...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2007.09.005
更新日期:2007-12-01 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::The Federal Food and Drug Administration, or FDA is generally considered a powerful gatekeeper, able to deliver or withhold life-saving cures and create or destroy economic windfalls. As the decades go by, and technologies, diseases, public health demands, and politics evolve, we can identify patterns of change, actio...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/j.heares.2016.11.006
更新日期:2017-06-01 00:00:00
abstract::An anatomically based model of cochlear neuron electrophysiology has been developed and used to interpret the physiological responses of the auditory neuron to electrical summation and refractory pulse-pair stimuli. For summation pulses, the summation time constant, tau(sum), indicates the ability of the membrane to h...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2006.02.011
更新日期:2006-05-01 00:00:00
abstract::During the simultaneous monaural presentation of two primary tones, distortion products can be measured acoustically in the ear canal (DPOAEs) and electrically as auditory evoked potentials (DPAEPs). The purpose of this investigation was to elucidate the sources of nonlinearity within the human auditory system respons...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2004.04.005
更新日期:2004-07-01 00:00:00
abstract::Previous studies have shown that objective measures based on stimulation with low-rate pulse trains fail to predict the threshold levels of cochlear implant (CI) users for high-rate pulse trains, as used in clinical devices. Electrically evoked auditory steady-state responses (EASSRs) can be elicited by modulated high...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2016.03.006
更新日期:2016-05-01 00:00:00
abstract::Primary afferent activity was recorded from the cochlear ganglion in chicken embryos (Gallus domesticus) at 19 days of incubation (E19). The ganglion was accessed via the recessus scala tympani and impaled with glass micropipettes. Frequency tuning curves were obtained using a computerized threshold tracking procedure...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(94)00172-m
更新日期:1995-02-01 00:00:00
abstract::Previous investigations have shown that a subset of inferior colliculus neurons, which have been designated type O units, respond selectively to isolated features of the cat's head-related transfer functions (HRTFs: the directional transformation of a free-field sound as it propagates from the head to the eardrum). Ba...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2008.01.008
更新日期:2008-04-01 00:00:00
abstract::The superior olivary complex (SOC) is a cluster of nuclei situated in the caudal brainstem tegmentum that forms an essential component of the auditory pathway. The SOC includes two principal nuclei, the medial and lateral superior olives (MSO and LSO respectively), that have clear roles in sound source localization. S...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2008.04.010
更新日期:2008-07-01 00:00:00
abstract::Cortical auditory evoked potentials (CAEPs) have been successfully used to explore the effects of noise on speech processing at the cortical level in adults and children. The purpose of this study was to determine whether +15 dB signal-to-noise ratios (SNRs), often recommended for optimal speech perception in children...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2020.108165
更新日期:2021-01-05 00:00:00
abstract::Single-unit recordings from neurons in the torus semicircularis of Rana ridibunda were analyzed to determine the degree to which these neurons can detect acoustic stimuli superimposed on continuous, broad-band noise. In the first series of trials the stimuli were tone pulses 25 ms long, 5 dB above threshold, and at th...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(88)90117-7
更新日期:1988-09-15 00:00:00
abstract::Many natural sounds such as speech contain concurrent amplitude and frequency modulation (AM and FM), with the FM components often in the form of directional frequency sweeps or glides. Most studies of modulation coding, however, have employed one modulation type in stationary carriers, and in cases where mixed-modula...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2010.02.002
更新日期:2010-04-01 00:00:00
abstract::The molecular composition and three-dimensional organization of the extracellular matrix (ECM) was studied by immunofluorescent microscopy, transmission and scanning electron microscopy in three connective tissue structures of the cochlea: the spiral limbus, basilar membrane and spiral ligament. Type II collagen, fibr...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(98)00219-6
更新日期:1999-03-01 00:00:00
abstract::The ultrastructure of the spiral ligament was compared in aged and young gerbils to assess the involvement of connective tissues in the lateral wall and particularly the fibrocytes in development of presbyacusis. Pathologic features in fibrocytes of senescent gerbils spanned a wide range reflecting different stages of...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(02)00581-6
更新日期:2002-10-01 00:00:00
abstract::Otoconia are biomineral particles of microscopic size essential for perception of gravity and maintenance of balance. Millions of older Americans are affected in their mobility, quality of life and in their health by progressive demineralization of otoconia. Currently, no effective means to prevent or counteract this ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2010.05.019
更新日期:2010-09-01 00:00:00