Abstract:
:The occurrence of horizontal jerks with larger amplitudes than on Earth was observed during vertical optokinetic nystagmus in astronauts tested throughout a 7-day spaceflight. During early exposure to microgravity, a horizontal spontaneous-like nystagmus was recorded in darkness following both vertical and horizontal optokinetic stimulation. In addition, the time constant of vertical OKAN with slow phase up was larger than on the ground. These effects disappeared on flight day 2. Then, the horizontal and vertical OKAN time constants decreased, and gradually returned to the preflight values, as previously observed with the gain of the vestibulo-ocular reflex. The early changes in microgravity are in agreement with those obtained on Earth in monkeys and humans during static tilt relative to gravity. Our findings suggest that the absence of otolithic input in microgravity may have an effect on the optokinetic system which could be mediated by the velocity storage mechanism.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Clement G,Berthoz Adoi
10.3109/00016489009107432subject
Has Abstractpub_date
1990-03-01 00:00:00pages
179-87issue
3-4eissn
0001-6489issn
1651-2251journal_volume
109pub_type
杂志文章abstract::The results of myringoplasty on 172 ears examined after an average follow-up time of 1.5 years are reported. The fascial underlay technique with swing-door plasty was employed in 78% of the cases. The graft take was successful in 150 ears (87%), three of which (2%) later revealed adhesive changes in the middle ear. Th...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488209130902
更新日期:1982-05-01 00:00:00
abstract::To predict the possible benefit of a cochlear implant to a patient, the clinician requires a reliable objective method to monitor the presence of surviving fibres in the 8th nerve. The subjective promontory test and the evaluation of electrically evoked brainstem potentials are not adequate. An electrical stimulus art...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489409126093
更新日期:1994-09-01 00:00:00
abstract::Based on the late results of tympanoplasty on 300 ears and of one-stage mastoidectomy and tympanoplasty on 269 discharging ears, the problems involved in staging tympanoplasty are discussed. The results of one-stage operations were found to be satisfactory 2-10 years after operation. The frequency of recurrent cholest...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487609120906
更新日期:1976-09-01 00:00:00
abstract::Specimens from the epithelium on the lateral wall of the human nose were examined under the electron microscope using a lipid and carbohydrate retaining method. In many of the ciliated epithelial cells and in some of the cells in the mucosal glands we identified multilamellated granules. These structures resembled lam...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489009107447
更新日期:1990-03-01 00:00:00
abstract:CONCLUSION:Mouse embryonic stem cells (ESCs) transplanted into the scala tympani are able to migrate in the cochlea of rats deafened with aminoglycoside and partly restore the structure of sensory epithelia of the inner ear. OBJECTIVES:To explore the migration and differentiation of enhanced green fluorescence protein...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.720029
更新日期:2013-02-01 00:00:00
abstract:CONCLUSION:The visual outcomes of endoscopic treatment of optic neuropathy are favorable. However, no specific prognostic factor was associated with good outcome. OBJECTIVE:To investigate visual outcomes of patients with optic neuropathy caused by paranasal mucocele or sinusitis. METHODS:The clinical course in 38 pat...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.557837
更新日期:2011-08-01 00:00:00
abstract:CONCLUSION:Telephone usage is a difficult challenge for cochlear implanted patients. A significant number of cochlear implanted patients are able to carry on a land-line or mobile telephone conversation. The telephone model may be a critical factor for telephone performance. OBJECTIVES:The goals of this study were to ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480500469552
更新日期:2006-07-01 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 aim of this study was to determine the basic properties of the 2f2-f1 distortion product otoacoustic emissions (DPOEs) in 36 normally hearing subjects and to compare their characteristics with those of the 2f1-f2 DPOEs. The influence of stimulation parameters on 2f2-f1 DPOE behaviour was examined: i) stimulation l...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850155099
更新日期:1998-01-01 00:00:00
abstract:CONCLUSIONS:In addition to the correlation of transforming growth factor (TGF)-beta1 levels to the radiation toxicity, both Epstein-Barr virus (EBV) infection and postoperative status play roles in the change in plasma TGF-beta1 levels in patients with head and neck cancers. OBJECTIVES:To assess the parameters involve...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480701714293
更新日期:2008-10-01 00:00:00
abstract:CONCLUSIONS:Thorough otomicroscopical examination of the tympanic membrane in acute otitis media (AOM) might distinguish AOM episodes caused by different bacteria. It thus might be a way to select appropriate treatment for each patient without raising the number of dangerous complications. OBJECTIVES:The aim of this s...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480601091719
更新日期:2007-09-01 00:00:00
abstract:CONCLUSION:Videomicroscopy with subpixel analysis is an excellent system for quantification of outer hair cell (OHC) movements. The resolution of a few nanometers is accurate enough to show induced differences of electromotility. OBJECTIVE:Electromotility of OHCs is a voltage-dependent process resulting from a membran...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480701411502
更新日期:2008-03-01 00:00:00
abstract:CONCLUSION:Bilateral electric acoustic stimulation (EAS) effectively improved speech perception in noise and sound localization in patients with high-frequency hearing loss. OBJECTIVE:To evaluate bilateral EAS efficacy of sound localization detection and speech perception in noise in two cases of high-frequency hearin...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2014.951453
更新日期:2015-02-01 00:00:00
abstract::Normal human subjects were exposed to repeated optokinetic afternystagmus (OKAN) testing in either one direction or alternating directions of stripe movement. Sessions were conducted at intervals of either one week or several weeks. Repeated exposure to OKAN stimulation in one direction produced significant response d...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488509119150
更新日期:1985-01-01 00:00:00
abstract::The ultrastructural pattern of the acoustic nerve Schwannoma was studied on surgically excised tumours and on explants cultured in vitro. The typical neoplastic cell is elongated, spindle-shaped, coated with basement membrane and numerous protruding cellular processes. Cells demonstrating numerous microfilaments are a...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488509108909
更新日期:1985-03-01 00:00:00
abstract:CONCLUSION:The age-related changes in ocular vestibular-evoked myogenic potentials (oVEMPs) elicited by galvanic vestibular stimulation (GVS) and bone-conducted vibration (BCV) might be attributed to the morphological degeneration of the vestibular system. OBJECTIVE:This study employed GVS and BCV modes for eliciting ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.708437
更新日期:2012-12-01 00:00:00
abstract::We examined quantitatively the ventrodorsal gliding occurring along a sagittal plane in the cricothyroid articulation. For this purpose we used 10 fresh excised human larynges taken at autopsy. Furthermore we examined the morphology, the hydroxyproline content and collagen types of the ligaments and the articular caps...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488709134706
更新日期:1987-01-01 00:00:00
abstract::Background: Various graft materials and surgical methods are used in the treatment of tympanic membrane perforations.Aims/Objectives: The aim of this study was to evaluate the operation method and graft success of extended perichondrial butterfly myringoplasty performed by an endoscopic method and the hearing gain of ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1730949
更新日期:2020-04-01 00:00:00
abstract::Efforts to evaluate findings in the nystagmogram were made in a material of 338 vertiginous and dizzy patients. A spontaneous nystagmus, a positional nystagmus as well as a difference in caloric reactivity are as solitary findings of lettle value for revealing peripheral disorders. On the other hand, central disturban...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809124728
更新日期:1978-07-01 00:00:00
abstract::Synthesis of prostaglandins (PGs) was characterized in the lateral wall (LW) of guinea-pig cochlea. Basal synthesis at 37 degrees C was about 480 pg/LW (12.8 ng X mg-1 protein) for PGI2 and 85 pg/LW (2.3 ng X mg-1 protein) for PGE2, levelling out after 10 min of incubation. Incubation with arachidonic acid (10(-5) M) ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
更新日期:1987-05-01 00:00:00
abstract:CONCLUSION:The results of this study give support to the theory that opening the middle ear (ME) to the atmosphere leads to a deterioration in its pressure regulation capacity. However, this is probably not the reason why a perforation of the tympanic membrane becomes chronic. OBJECTIVE:Direct, continuous measurement ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480510029374
更新日期:2005-07-01 00:00:00
abstract::Background: The various pathological types of non-squamous cell carcinomas (nSCCs) of the larynx accounted for about 5% laryngeal malignancies, but the knowledge regarding these pathological behaviors, therapeutic models and prognostic factors was limited.Objectives: To investigate the clinical characteristics and the...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2019.1700305
更新日期:2020-02-01 00:00:00
abstract::The objective of this study was to develop and test an endolabyrinthic microsurgical procedure for treatment of vertigo, the utriculostomy. This involves the application of local heat for obtaining a fistula in the membranous labyrinth, so as to establish communication between the endolymphatic and perilymphatic space...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489950180739
更新日期:1999-01-01 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::683 tumour fragments from 63 head and neck carcinoma patients were cultured in vitro. Two laryngeal carcinomas and two salivary gland carcinomas were established into permanent cell lines. Malignancy of these cultured cells was proved by cloning, by chromosomal analysis and by transplantation into athymic (nu/nu) mice...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488309130956
更新日期:1983-03-01 00:00:00
abstract::Background: In clinical experience patients who do not frequently check the cochlear implant (CI) maps have poor auditory performance and poor acceptance of map variations over time.Aims: The aim of the present study was to evaluate the effect of CI map optimization on both speech perception and subjective hearing in ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2019.1700303
更新日期:2020-02-01 00:00:00
abstract::Aspiration biopsy is an accurate but still a somewhat controversial method of diagnosing salivary gland tumours preoperatively. During the last few years this method has been more and more accepted dependent on its increasing reliability in diagnosing the different types of tumours, but for an adequate treatment it is...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487609107505
更新日期:1976-05-01 00:00:00
abstract::Background: It has been reported that head-up sleep (HUS) prevents free-floating otoliths from entering canals and that vertical recognition training (VRT) promotes vestibular compensation.Aims/objectives: We would like to assess HUS and VRT for intractable motion-evoked dizziness, including possible benign paroxysmal...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1727566
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVE:Ischemic vascular damage of the inner ear is one of the known causes of sensorineural sudden hearing loss (SSHL). Folate is an emerging risk factor associated with an increased risk of vascular damage. The aim of this study was to investigate whether low serum folate levels are associated with SSHL. MATERIAL...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480410016216
更新日期:2004-06-01 00:00:00
abstract:OBJECTIVES:To investigate the outcome of pediatric tracheostomy and identify predictive factors for successful decannulation. METHODS:We performed a retrospective chart review of a series of 42 consecutive patients of less than 24 months of age who underwent a tracheostomy between 2012 and 2015. RESULTS:Successful de...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2017.1326064
更新日期:2017-10-01 00:00:00