Abstract:
:The inner ear distortion induced by gentamicin (GM), a type of aminoglycoside antibiotic, was examined in guinea-pigs. Previous studies which investigated the function of the eighth cranial nerve and organ of Corti using cochlear microphonics (CM) and compound action potential (CAP) reported ototoxicity following experimental exposure to GM. In this report, the effects of GM on the cochlea and the eighth cranial nerve were investigated systematically by measuring CM, CAP, summating potentials induced by 90 dB (SPL) tone burst, endocochlear potential (EP) and K+ ion concentration of the endolymph. Guinea-pigs were treated with a daily intramuscular injection of GM (60 mg in 1.5 cc) at a dose of 60 mg/kg during different treatment periods. The maximum output voltage of AP was decreased by injection of GM (60 mg/kg x 24). A decrease in the CM maximum output voltage and the elevation of CM pseudothreshold were typically seen after GM injection at a test frequency of 8 kHz and a decrease in CAP was also observed. Changes in EP during 3 min anoxia were observed, in particular a decrease in the absolute value of the negative potential. The endolymph K+ ion concentration remained unchanged. These findings indicate that the diffusion potentials decreased at the same time as reduction of maximum output voltage in CM induced by GM injection.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Hotta S,Takahashi M,Itoh T,Yamamura Kdoi
10.1080/00016489850183449subject
Has Abstractpub_date
1998-06-01 00:00:00pages
362-8issue
3eissn
0001-6489issn
1651-2251journal_volume
118pub_type
杂志文章abstract:CONCLUSIONS:Klotho protein content decreases with increasing age, which weakens resistance to oxidative stress, resulting in induced cell death as well as modulating endolymph fluid homeostasis. Down-regulation of klotho also leads to down-regulation of TRPV5 and TRPV6, resulting in modified Ca(2+) homeostasis in the i...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016480902725254
更新日期:2009-12-01 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::Cochlear blood flow in guinea pigs was assessed using histological assessment of various red blood cell and vessel lumen parameters. Cochlear blood flow was either enhanced by administration of carbogen or inhibited by induced positive airway pressure. The resulting enhancement or reduction of blood flow in the cochle...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488709109055
更新日期:1987-07-01 00:00:00
abstract::Conclusion Eustachian tube (ET) dysfunction, which plays a role in the pathogenesis chronic suppurative otitis media (CSOM), does not seem to be due to differences in paratubal structures. Objective The aim of this study was to compare the magnetic resonance imaging (MRI) findings of the paratubal structures of the ET...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2016.1154187
更新日期:2016-07-01 00:00:00
abstract:CONCLUSION:Cochlear implantation assessment is possible using commercially available standard flat-detector computed tomography (FD-CT) protocols. Image quality is superior to multislice CT (MSCT). The radiation dose of FD-CT is lower in comparison with MSCT standard protocols and may therefore overcome the limitations...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016480903292700
更新日期:2010-04-01 00:00:00
abstract::The influence of cigarette smoke on the pharyngeal mucosa was investigated in a clinical study and in an experiment on animals. Histologic reports were evaluated according to the Kambic-Lenart classification of hyperplastic aberrations of the throat mucosa. A close dependence of the degree of hyperplasia and the numbe...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809121433
更新日期:1978-01-01 00:00:00
abstract:CONCLUSIONS:The distortion product otoacoustic emission (DPOAE) amplitudes in diabetics were significantly lower than those in controls when pure tone audiometry (PTA) was within normal limits, implying cochlear function impairment in the early stage of diabetes mellitus. Retrocochlear damage was suggested by elongated...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章,meta分析,评审
doi:10.1080/00016489.2016.1223344
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVES:Hearing loss after spinal anesthesia has been reported to be related to the transmission of a reduced subarachnoid pressure to the inner ear via the cochlear aqueduct due to loss of spinal fluid. However, there are also some controversies related to this phenomenon, which require systematic investigation. M...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480410017143
更新日期:2004-12-01 00:00:00
abstract::Ionic mechanisms sustaining sensory transduction in crista ampullaris sensory cells have been investigated chiefly by replacing the endolymph with solutions with K+ and Ca++ chelators added. The effects of the modified solutions were evaluated by extracellular and intracellular recordings of both and the presynaptic a...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488209130893
更新日期:1982-05-01 00:00:00
abstract::The ultrastructural features of the interferon-treated adult laryngeal papillomas are described. Compared with untreated papillomas, no differences in ultrastructure were found by transmission electron microscopy. By scanning electron microscopy, significant alterations comprising a smooth and oedematous surface with ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488509104793
更新日期:1985-09-01 00:00:00
abstract::Mononuclear host cells isolated from primary laryngeal carcinoma were assessed by means of indirect immunofluorescence with a panel of monoclonal antibodies against various lymphocyte subsets and macrophages. Tumours of various staging groups were examined in parallel with cells isolated from patient and donor periphe...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809119459
更新日期:1988-01-01 00:00:00
abstract:CONCLUSION:Vasomotor symptoms (VMS) and especially hot flushes are negatively associated with recovery from menopause-related dizziness. A further study is justified to determine whether hormone replacement therapy (HRT) can shorten this recovery time. OBJECTIVES:This study aimed to compare the rate of recovery from d...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2013.841991
更新日期:2014-02-01 00:00:00
abstract::Earlier investigation did not show any clear distinctive pathological features that differentiate vocal polyps from vocal nodules. The light microscopic distinctive features between the two lesions point in the direction of a more pronounced epithelial reaction and a more fibrous stromal change in vocal nodules. In th...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809119505
更新日期:1988-05-01 00:00:00
abstract::Glycerol (2 g/kg body weight), or 0.15 M NaCl for control animals, was administered to rats by i.v. injection. The dose was chosen in order to obtain an osmolarity increase in plasma of about 15 mosm/l 1 h after the glycerol administration, an increase which is similar to that observed in the human glycerol dehydratio...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489609137887
更新日期:1996-07-01 00:00:00
abstract:CONCLUSION:Chances of hearing preservation are better in patients with vestibular schwannoma (VS) from the superior vestibular nerve (SVN) than from the inferior vestibular nerve (IVN). Pathologic posturography and electronystagmography (ENG) findings are more common in schwannomas from the SVN compared with tumors fro...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2010.536991
更新日期:2011-05-01 00:00:00
abstract::The distribution of fibronectin (FN) in operative specimens of maxillary sinus mucosa from 35 patients with chronic sinusitis was examined immunohistochemically. Mouse monoclonal antibody to human FN was used for the peroxidase-antiperoxidase staining technique. FN was found in most of the serous cells and in some (ab...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109137365
更新日期:1991-01-01 00:00:00
abstract::Recent investigations of children with specific language impairment (SLI) have found deviant anatomical asymmetry of the perisylvian cortex. These studies argue that this deviant anatomical asymmetry is linked to the language disorders of SLI children. To date no studies have examined whether deviant functional asymme...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164801300043929
更新日期:2001-01-01 00:00:00
abstract::We studied the pathological changes in the temporal bone and brainstem, with particular attention to the autolysis of red blood cells in and around the blood vessels, in six cases of brainstem death determined by auditory brainstem responses (ABRs). Our findings showed that the cochlea, the visceral organs and the spi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489509139287
更新日期:1995-03-01 00:00:00
abstract::Middle ear lesions were produced in chinchillas by introducing fascia, Gelfoam, silastic or a combination of these materials into the labyrinthine and mastoid bullae. After 1-2 months, conventional 226 Hz and multifrequency tympanometry (MFT) were performed and the animals were sacrificed for histopathological analysi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850154937
更新日期:1998-03-01 00:00:00
abstract::[3H]Dihydrostreptomycin was given intramuscularly to young pigmented guinea pigs and rats. Whole-body autoradiography, combined with densitometric measurement of the blackening of the autoradiograms, and liquid scintillation counting were used to determine the levels of radioactivity in the inner ear in relation to bl...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488609132834
更新日期:1986-03-01 00:00:00
abstract:OBJECTIVE:Temperature-controlled radiofrequency volumetric tissue reduction (RFVTR) is a minimally invasive technique used in the treatment of the tongue base, soft palate and turbinates. Complications seem to be rare, but the scope of previous studies was often limited by the small number of patients included. The aim...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480310001385
更新日期:2003-05-01 00:00:00
abstract::There is no single technique for reconstruction of the canal wall following radical mastoidectomy. Autograft tissues may be unsuitable because of resorption and limited availability. An ideal foreign implant material should be bone-like in quality, non-ototoxic, readily available and malleable. Plaster of Paris, a deg...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488609108631
更新日期:1986-05-01 00:00:00
abstract::In precollicular decerebrate cats, activation of limb extensors during side-down roll tilt of the animal depends on both an increased discharge of excitatory vestibulospinal neurons and a reduced discharge of inhibitory medullary reticulospinal (mRS) neurons. These inhibitory neurons are tonically excited by a choline...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
更新日期:1987-05-01 00:00:00
abstract::This study was performed in order to determine the immunohistochemical expression and distribution pattern as well as the electrophysiological actions of substance P in human vestibular ganglion cells. Substance P-like immunostaining was mainly found in the cytoplasm of small vestibular ganglion cells. In contrast, ne...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489609137839
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Endolymphatic sac decompression has shown limited success for the treatment of Ménière's disease (MD). We have published a novel technique with very promising results for the treatment of refractory MD: the Endolymphatic Duct Blockage (EDB) with two titanium clips. One of the challenges of this technique was...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2018.1481524
更新日期:2018-10-01 00:00:00
abstract::By a careful ENT and oral examination of 111 patients with suspected chronic maxillary sinusitis, the diagnosis was verified in only 56% (62/111). In 29 of these 62 patients (47%) a relation to dental infections was found, periodontitis being as frequent as apical granulomas. In 61% of the patients, in whom the diagn...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488209130865
更新日期:1982-01-01 00:00:00
abstract::The sensory and secretory epithelia may become morphologically changed following the exposure to mercury chloride. The earliest and most sever change in the sensory epithelium appeared in the apical part of the cochlea, while the basal coils were only seldom damaged (cytocochleogram studies). Acute intoxication mostly...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809111928
更新日期:1978-03-01 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::In a previous study (1) it was found that in healthy subjects Ocular (Counter) Rotation is mainly due to otolith stimulation and only to a minor extent induced by slanted visual structures. Stimulation of the neck by tilting the trunk laterally upwards did not result in a systematic rotation of the eyes. In the presen...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109138369
更新日期:1991-01-01 00:00:00
abstract::Background: Incidence of thyroid gland invasion in advanced laryngeal cancers is low. Ipsilateral or total thyroidectomy along with total laryngectomy has been controversial and there has been no consensus over the management of thyroid gland in advanced laryngeal cancers.Objective: To determine the frequency of thyro...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1778786
更新日期:2020-10-01 00:00:00