Abstract:
:Enzymatic tracer techniques to study normal and pathologic strial capillary transport pose various problems. The use of electron opaque tracers can circumvent many of these problems. Iron dextran (mol. diam 20--70 A) and ferritin (mol. diam 110 A) were injected intravenously and the mice sacrificed at intervals of 1/2, 1, 2, 5, and 24 h. The iron dextran results were unusual in that from 1/2 to 5 h after administration the tracer was present within the cytoplasmic matrix of endothelia, but by 24 h it had been cleared out. No transendothelial exchange was noted. The ferritin results were in conflict and previous results using horse-radish peroxidase. Transport of ferritin was minimal regardless of time sacrificed. No more than a few molecules were scattered about the capillary basal limina. Those molecules transported across capillaries were apparently delivered by means of the micropinocytotic system. The results suggest a blood-strial barrier similar to the blood-thymic and blood-myenteric barriers. Experimental as well as control animals exhibited strial light cells which contained ferritin-like particles within their cytoplasmic matrices. These light cells are probably reticuloendothelial type cells. Ferritin may be useful to gauge strial capillary transport alterations associated with auditory pathologies.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Santos-Sacchi J,Marovitz WFdoi
10.3109/00016488009127103subject
Has Abstractpub_date
1980-01-01 00:00:00pages
12-26issue
1-2eissn
0001-6489issn
1651-2251journal_volume
89pub_type
杂志文章abstract:CONCLUSION:The occult metastasis rate for T2 oral cancer can be reduced by ultrasonography (US). Also, the late metastasis rate is considered to be reduced by combining US with frozen section biopsy (FSB) during supraomohyoid neck dissection (SOHND). OBJECTIVES:Early oral cancer has been reported to show occult metast...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.598553
更新日期:2011-11-01 00:00:00
abstract:CONCLUSION:A 20 mm hole made backwards from the midpoint of the asterion to the mastoid process is suitable for a retrosigmoid keyhole approach with the aid of an endoscope. The endoscope-assisted retrosigmoid keyhole approach can be considered an effective and safe method for removal of vestibular schwannoma. OBJECTI...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2013.817682
更新日期:2013-11-01 00:00:00
abstract::Although still the subject of discussion, vestibular-evoked myogenic potentials (VEMPs) have been considered to reflect the function of the saccular and, more recently, the cochlear tracts. To accurately determine the precise afferent pathway carrying VEMPs, we studied the outcomes of VEMPs and other examinations in p...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
更新日期:2001-06-01 00:00:00
abstract::Multimodality therapy of advanced malignant tumours of the head and neck includes surgery, radiotherapy and chemotherapy. However, the cure rate for these tumours is low and guidelines for the selection and timing of therapy are needed. For such guidelines, tumour cell kinetic parameter studies, e.g. cell proliferatio...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488309130933
更新日期:1983-01-01 00:00:00
abstract::The influence of neck and leg proprioceptive inputs on optokinetic-induced quick phases was studied in humans. Ten subjects received unidirectional horizontal optokinetic stimulation (10-20%/s) during sinusoidal neck, leg and combined neck + leg proprioceptive stimulation. The optokinetic reflex was measured by electr...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164801300043523
更新日期:2001-01-01 00:00:00
abstract:CONCLUSIONS:Homeostasis of endolymph volume is a complex mechanism, in which the endolymphatic sac (ES) may play an important role. OBJECTIVES:To elucidate the effect of acute endolymphatic hydrops (EH) on the ES and to gain further information about the volume and pressure regulative function of the ES. MATERIALS AN...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480701497428
更新日期:2008-03-01 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:CONCLUSION:Delayed facial palsy after tympanoplasty had no predisposition for gender or side. It seemed that prednisolone alone without antiviral drugs was enough for the treatment of delayed facial palsy after tympanoplasty. OBJECTIVE:To analyze the clinical characteristics and prognosis of delayed facial palsy after...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2014.971464
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVE:Mutations in the fibrillar collagen genes COL11A1 and COL11A2 can cause sensorineural hearing loss associated with Stickler syndrome. There is a correlation of hearing loss severity, onset, progression and affected frequencies with the underlying mutated collagen gene. We sought to determine whether differenc...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480410016162
更新日期:2004-04-01 00:00:00
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 expe...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850183449
更新日期:1998-06-01 00:00:00
abstract:UNLABELLED:Abstract Conclusions: In survival analysis, the combined Charlson comorbidity index (CCI) can be considered as a prognostic factor independent of the tumor node metastasis (TNM) classification, tumor stage, and tumor location. Severe comorbidity was the factor that had the greatest impact on prognosis in cas...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.564651
更新日期:2011-08-01 00:00:00
abstract:CONCLUSIONS:The transconjunctival approach to orbital floor fractures permits excellent exposure of the inferior orbit and provides a good surgical outcome, especially with regard to ocular motility. OBJECTIVE:Surgical access to orbital floor fractures can be accomplished via the transconjunctival approach. The majori...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480500395757
更新日期:2006-04-01 00:00:00
abstract::Utilizing an enlarged middle cranial fossa approach to the cerebello-pontine angle without destruction of the labyrinth or cochlea the authors have since 1981 operated on 263 unilateral acoustic neurinomas. Tumour sizes ranged between 3 mm intrameatal and 35 mm within the cerebello-pontine angle. Complete tumour remov...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489209137419
更新日期:1992-01-01 00:00:00
abstract::An impaired ostial function may be of importance in the pathogenesis of the maxillary sinus empyema due to changes of the antral gas composition. Oxygen is usually not demonstrable in purulent sinus secretion while carbon dioxide accumulates. In vitro, pneumococci were able to create a similar gas environment, provide...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809121431
更新日期:1978-01-01 00:00:00
abstract::Craniotomy with cerebrospinal fluid (CSF) suction was performed on 18 guinea pigs to determine the effects on the inner ear morphology. Six control animals received anaesthesia only and 12 were operated on with a postoperative survival time of 1 or 24 h. The histologic examinations showed no signs of endolymphatic hyd...
journal_title:Acta oto-laryngologica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016489409126116
更新日期:1994-11-01 00:00:00
abstract::The three-dimensional distribution of the cricoid area was investigated using computer graphics and its histological structure and pathology were studied using whole-organ serial sections. A total of 26 adult human larynges were examined. The findings were as follows: 1. Cricoid areas were located along the superior p...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
更新日期:2002-12-01 00:00:00
abstract::Microsurgery of the facial nerve has resulted in a great progress by regaining, thanks to its various techniques, not only the voluntary movements of the face but in addition also the emotional expressive motility. It has become evident, however, that one disadvantage is always unavoidable even in the most subtle reco...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488109138533
更新日期:1981-05-01 00:00:00
abstract:CONCLUSION:The results suggested mercury (Hg)-induced anomalies in the brainstem-mediated acoustic stapedius muscle reflex in children. OBJECTIVES:Hg exposure has been associated with hearing impairment and brainstem anomalies. Acoustic stapedius reflex (ASR) thresholds, growth functions, decay/adaptation times, and b...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.617778
更新日期:2012-01-01 00:00:00
abstract::Voluntary control of the human vestibulo-ocular reflex with and without visual targets was investigated. Subjects were rotated sinusoidally from 0.1 to 1.0 Hz using d.c. electro-oculography to record eye position. The ratio of eye to head movement, or gain, of the vestibulo-ocular reflex was measured. When subjects we...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487609107490
更新日期:1976-05-01 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::Serum type (IgG, IgM and IgA-class) and secretory type antibodies specific to Streptococcus pneumoniae (Pn), Haemophilus influenzae (Hi) and Branhamella catarrhalis (Br) were measured by enzyme-linked immunosorbent assay (ELISA) in 46 serum and 114 middle ear effusion (MEE) samples from 85 children with acute otitis m...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489009107421
更新日期:1990-01-01 00:00:00
abstract:CONCLUSION:A very low dose of dexamethasone (DEX) was as equally as sufficient as a pharmacological dose to decrease eosinophil inflammation in airways and bone marrow. The timing of DEX treatment in relation to allergen challenge was strongly decisive for the outcome of the inflammatory response. OBJECTIVES:We aimed ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480802126561
更新日期:2009-02-01 00:00:00
abstract::Juvenile nasopharyngeal angiofibroma is a disease afflicting mainly adolescent males. The lesion is benign but characterized by local aggressive growth. In advanced cases the tumour may extend intracranially. In this study 18 cases of juvenile nasopharyngeal angiofibroma were investigated. Tumour extension was assesse...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809119456
更新日期:1988-01-01 00:00:00
abstract::Background: Neutrophil-to-lymphocyte ratio (NLR) has emerged as a marker for degree of inflammation. Inflammation has been regarded as one of the causes of idiopathic sudden sensorineural hearing loss.Objectives: This study investigated the potential association between neutrophil-to-lymphocyte ratio (NLR) and prognos...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2019.1705998
更新日期:2020-04-01 00:00:00
abstract:CONCLUSIONS:It has been shown that TRPMs may play a functional role in sensory cell physiology, fluid homeostasis, sensory cell death, and thermosensation in the inner ear, while TRPA1 plays an important role in sensory transduction. OBJECTIVE:To study expression of TRPM1-8 and TRPA1 in the mouse inner ear. MATERIALS...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480802570545
更新日期:2009-10-01 00:00:00
abstract::The aim of this study was to evaluate the effects of argon laser irradiation of the semicircular canals using computed tomography (CT) images and to examine the basis for laser treatment for benign paroxysmal positional vertigo (BPPV). CT images of the posterior canal were evaluated postoperatively in a patient with i...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2011.622292
更新日期:2012-01-01 00:00:00
abstract::On-line measurement of ME gas composition in normal middle ears of 5 anesthetized guinea pigs at an established steady state was performed by mass spectrometry. The mean values for the gas composition of the middle ear were found to be: PN2: 82.4%, PO2: 7.6% and PCO2: 10.0%. This composition is very different from tha...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135824
更新日期:1993-05-01 00:00:00
abstract::Eighteen patients with intracranial skull base tumours diagnosed at CT or MR as neuromas or meningiomas were studied with positron emission tomography (PET) using L-(methyl-11C) methionine. Compared with normal cerebellar tissue, the uptake of methionine in the tumours increased more rapidly and reached a higher level...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489709113425
更新日期:1997-07-01 00:00:00
abstract:CONCLUSION:We demonstrated an early increase in aquaporin 2 (AQP2) expression in a motor nerve (extratemporal facial nerve, FN) following acute peripheral compression (crush), concomitant to effective development of motor dysfunction (facial palsy). The early increase in AQP2 expression that occurred concomitantly with...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2015.1010104
更新日期:2015-07-01 00:00:00
abstract::A new generation of cochlear implant electrodes has been designed to position the stimulating contacts close to the modiolus in order to reduce power consumption and increase stimulation selectivity. The purpose of this study was to assess electrode position in the cochlea for three recently designed electrodes. Fifte...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480260000021
更新日期:2002-06-01 00:00:00