Abstract:
:The perilymphatic space of the guinea pig was perfused in situ with artificial perilymph containing [32P] orthophosphate and 3H-glycerol while cochlear microphonic potentials (CM) were monitored. The perfusion of 10 mM gentamicin suppressed CM by 62% within 30 min. 32P-incorporation into phosphatidylinositol bisphosphate in the organ of Corti was decreased but distribution of 3H-glycerol in neutral lipids and phospholipids was not affected by gentamicin. The morphological evaluation included all structures lining the scala media, the spiral ligament, the basal membrane and the vestibular organs. Hair cells sometimes contained small intracellular 'precipitation' lines but, in general, ultrastructure of all tissues was essentially normal and no overt histopathological changes were evident. The observed biochemical changes should, therefore, represent early and primary actions of the drug. This confirms the hypothesis that an interaction with the acidic phospholipid, phosphatidylinositol bisphosphate, is an important step in the ototoxic mechanism of amino-glycoside antibiotics.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Tachibana M,Anniko M,Schacht Jdoi
10.3109/00016488309132872subject
Has Abstractpub_date
1983-07-01 00:00:00pages
31-8issue
1-2eissn
0001-6489issn
1651-2251journal_volume
96pub_type
杂志文章abstract::Negative membrane potentials from the stria vascularis of the guinea pig have been recorded in vivo. Stable negative membrane potentials from the stria cells have also been recorded for as long as 2 minutes in vitro. They varied from -20 mV to -49 mV, irrespective of whether the stria vascularis was immersed in Ring...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487909137159
更新日期:1979-01-01 00:00:00
abstract:CONCLUSIONS:1. The principle of bilateral symmetry depends on the chordal cartilage that is the keystone in cranial base ossification in rats and humans, due to its anatomical situation and for the production of the chordin protein that regulates the bone morphogenetic protein BMP-7. 2. In humans and in rats, foramen l...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.642814
更新日期:2012-04-01 00:00:00
abstract::In 4 cases of Meniere's disease, E.P., concentrations of Na, K, Cl, and protein, and osmolality were determined in endolymph from the basal coil of the cochlea. In 3 cases, endolymph was found normal in nature as compared with normal animals. In one long-standing (11 years) case, a strial dysfunction was evidenced. In...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488409132935
更新日期:1984-05-01 00:00:00
abstract::The nasal mucosa and the autonomic nervous regulation of protective reflexes plays an important role for the protection of the lower airways. Increasing experimental evidence from both animal models and humans suggests that the organization of the autonomic nervous pathways is more complicated than previously assumed....
journal_title:Acta oto-laryngologica
pub_type: 杂志文章,评审
doi:10.3109/00016489309135832
更新日期:1993-05-01 00:00:00
abstract::The influence of posture on nasal cavity geometry was studied by acoustic rhinometry in 14 normal adult subjects. On adopting a supine position from sitting the volume of the initially more patulous nasal cavity decreased and the volume of the less patulous side increased. These changes in volume are statistically sig...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135858
更新日期:1993-07-01 00:00:00
abstract:OBJECTIVE:We used ocular vestibular evoked myogenic potentials to investigate the relationship between residual dizziness and utricular function following the canalith repositioning procedure for benign paroxysmal positional vertigo. METHODS:Ocular vestibular evoked myogenic potentials were measured in 44 patients (40...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2017.1347824
更新日期:2017-11-01 00:00:00
abstract:CONCLUSIONS:Local administration of MP delivered by the C/GP-MP-hydrogel can improve the recovery of facial nerve following crush injury. The findings suggested that locally injected MP delivered by C/GP-hydrogel might be a promising treatment for facial nerve damage. OBJECTIVES:In this study, the aim is to assess the...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
更新日期:2015-01-01 00:00:00
abstract:CONCLUSIONS:Over-adduction of the unaffected vocal fold may not compensate vocal function in unilateral vocal fold paralysis (UVFP). OBJECTIVE:To determine whether over-adduction of the unaffected vocal fold has any impact on vocal function in patients with UVFP. METHODS:A total of 101 patients with UVFP who underwen...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2014.886020
更新日期:2014-07-01 00:00:00
abstract::Evaluation of some 200 endolymph proteins indicates that they are predominantly derived from plasma. However, the profile of endolymph proteins is remarkably similar to that of perilymph and entirely different from that of plasma. This supports the current consensus that perilymph rather than plasma is the (direct) so...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章,评审
doi:10.1080/00016489950181260
更新日期:1999-01-01 00:00:00
abstract::Serially cultivated rat middle ear epithelium was studied under exposure to various concentrations of carbon dioxide. Three experiments were performed exposing the epithelium to a gaseous environment containing 5 or 10% CO2 or to an atmosphere almost devoid of CO2. Oxygen was maintained constant at 20% and nitrogen wa...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489009125165
更新日期:1990-05-01 00:00:00
abstract:CONCLUSION:Contrary to our expectation, that the clinical characteristics of temporal bone fracture would differ in children and adults, we found that the two groups were similar. OBJECTIVES:Most studies of temporal bone fractures have been performed in adults. To our knowledge, no study has investigated differences i...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.754995
更新日期:2013-05-01 00:00:00
abstract::The submucosal glands in the rat nose are characterized by the presence of both neutral and acid glycoproteins, which are important constituents of nasal and tracheobronchial secretions. This study is an attempt to gain a better insight into the secretion of these two types of glycoproteins and its neural regulation. ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488709128287
更新日期:1987-11-01 00:00:00
abstract::The existence of primary thyroid sarcomas represents a contentious issue. Some authors believe that thyroid sarcomas are, in fact, anaplastic carcinomas with sarcomatous (spindle cell) features. From the standpoint of treatment and prognosis, the histogenesis of thyroid 'sarcomas' is academic, because these tumors, ir...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480500527193
更新日期:2008-03-01 00:00:00
abstract::Vestibular microphonics in response to acoustical stimulation were recorded in cochlea-deprived pigeons. Endolymph flow in the semicircular canals alters this response. A caloric stimulus was applied to the horizontal canal or the posterior vertical canal close to the ampulla. To minimize the influence of gravity, the...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809097016
更新日期:1988-03-01 00:00:00
abstract::IL2Rs, in the presence of IL2, mediate activation and proliferation of human normal lymphocytes and modulate functional changes of some human leukocytic malignancies. IL2Rs have been demonstrated also on human neoplastic and fetal non-hematologic cells in vitro, although their functional role has not been described. W...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.1992.11665436
更新日期:1992-01-01 00:00:00
abstract::As part of an early intervention study on the acceptability of auditory rehabilitative intervention, we examined patient complaints and clinical findings of balance disorders. Hallam et al. have discussed desynchrony between such findings in hospital patient populations, and the aim of the present study was to investi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109137373
更新日期:1991-01-01 00:00:00
abstract::Metal intoxication (mercury and arsenic) in guinea pigs may cause damage to labyrinthine blood vessels by swelling of the endothelial cells, mitochondrial disintegration and sometimes protrusion of endothelial cell cytoplasm herniating into the blood vessel lumen. Chronic mercury intoxication resulted in distorted end...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487709128869
更新日期:1977-05-01 00:00:00
abstract::Background: The development of hearing and plasticity of brain after cochlear implantation (CI) for prelingually deaf children with white matter changes (group A) is unclear.Objective: To investigate the development of hearing for children in group A during 1 year after CI activation, compared with non-complicated pee...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1720285
更新日期:2020-05-01 00:00:00
abstract:CONCLUSION:A man-made bone tunnel of 1.5 turns around the modiolus can be created in cases of total cochlear ossification. Patients with ossified cochlea types I and II achieved satisfactory hearing results after cochlear implantation (CI). Patients with ossified cochlea type III, in which the modiolus is damaged by th...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2014.947656
更新日期:2014-12-01 00:00:00
abstract:CONCLUSION:Candidates for hearing preservation cochlear implant (CI) surgery can be divided into: those who benefit from electrical complement (EC) to remaining hearing and don't require additional amplification, those using a combined electric-acoustic stimulation (EAS) and those with the least amount of residual hear...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016480903567189
更新日期:2010-08-01 00:00:00
abstract::Transtympanic electrocochleography (TT ECoG) was conducted in 61 patients (61 ears) with the clinical diagnosis of Meniere's disease and 15 patients (21 ears) with cochlear hearing loss of other aetiologies to assess the ability of the method to separate different cochlear disorders. The click-evoked summation potenti...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850154838
更新日期:1998-03-01 00:00:00
abstract::From a study of nitric oxide (NO) output in the nose and sinuses it seems that: (i) the results obtained regarding the regulation of NO output in the nose do not necessarily apply to the sinuses; (ii) the results obtained for one group of sinuses may not apply to another; and (iii) NO output in the sinuses does not be...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480510031524
更新日期:2005-10-01 00:00:00
abstract::Retropharyngeal haematomas (RPHs) are rare but potentially life-threatening conditions that require a prompt diagnosis. However, the clinical scenario is not always straightforward as their presentation may be insidious, with no specific signs or symptoms. Treatment of RPH is conservative in the majority of cases, wit...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480410017233
更新日期:2005-04-01 00:00:00
abstract:CONCLUSION:Otolith organs input influences the axis of horizontal semicircular canal ocular reflex; therefore, the plane of compensatory eye movements induced by the horizontal canal stimulation is not always parallel to the canal. OBJECTIVE:To clarify whether horizontal canal ocular reflex is influenced by otolith or...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.656286
更新日期:2012-07-01 00:00:00
abstract:CONCLUSION:The results suggest that the beneficial effect of astragaloside IV on impulse noise-induced hearing loss may be due to its ability to inhibit reactive oxygen species (ROS) and prevent apoptosis. OBJECTIVE:Astragaloside IV is the major active constituent of Astragalus membranaceus, which has been widely used...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.643457
更新日期:2012-05-01 00:00:00
abstract:CONCLUSION:This study suggests that hyperbilirubinemia in the neonatal rat can impair auditory function and induce peripheral nerve pathology by reducing neurofilament-positive cells in spiral ganglion neurons (SGNs). This finding indicates a potential connection between hyperbilirubinemia and auditory impairment. OBJ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2014.938361
更新日期:2014-11-01 00:00:00
abstract::Most epidemiological surveys concerning populations exposed to occupational noise or random populations have shown that the left ear is slightly but significantly poorer than the right ear, especially at frequencies most susceptible to noise damage. To experimentally study the possible left-right asymmetry in response...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109138399
更新日期:1991-01-01 00:00:00
abstract::We investigated the redistribution of facial motor neurons after recovery from a crush injury of the facial nerve in the mongolian gerbil, with the retrograde transportation of horseradish peroxidase (HRP) technique. The facial nerve at the vertical segment was crushed unilaterally for 10 s with forceps. After 1 month...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489509139307
更新日期:1995-03-01 00:00:00
abstract::This study was designed to investigate morphological changes in the tympanic membrane (TM) associated with cholesteatoma formation in experimental animals following application of propylene glycol to the middle ear. A 50% solution of propylene glycol was applied bilaterally to the middle ear cavities of 30 young-adult...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488909107401
更新日期:1989-07-01 00:00:00
abstract::The vascular pattern of the rat cochlea was demonstrated by the aid of Berlin Blue (Prussian Blue) contrast. The vascular anatomy is similar to other mammals. The infrequent occurrence of the vessel of the basilar membrane under the organ of Corti is interesting in respect to its presumed importance for the oxygen sup...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488009127102
更新日期:1980-01-01 00:00:00