Comparison of the distribution pattern of PEG-b-PCL polymersomes delivered into the rat inner ear via different methods.

Abstract:

CONCLUSION:Cochleostomy is the most efficient approach in delivering PEG-b-PCL polymersomes (PMs) to the inner ear. PMs can be delivered to the vestibule by transtympanic injection or cochleostomy. OBJECTIVE:To evaluate the efficiency of delivering PEG-b-PCL PMs into the inner ear using different approaches. METHODS:The PEG-b-PCL PMs were administered either by sustained topical round window membrane (RWM) delivery using gelatin sponge pledgets in combination with an osmotic pump, transtympanic injection, or cochleostomy. The distribution of the PMs in the inner ear was observed by confocal microscopy using either whole mount specimens or cryosections. RESULTS:Cochleostomy resulted in distribution of the PMs in the spiral ligament (SL), mesothelial cells beneath the organ of Corti, supporting cells in the organ of Corti, and spiral ganglion cells (SGCs). Transtympanic injection induced uptake of the PMs in the SL and mesothelial cells beneath the organ of Corti. Topical administration showed distribution of the PMs only in the SL. In the vestibulum, transtympanic injection and cochleostomy induced more distribution of the PMs than did topical RWM delivery (p < 0.05, Kruskal-Wallis test).

journal_name

Acta Otolaryngol

journal_title

Acta oto-laryngologica

authors

Zhang Y,Zhang W,Johnston AH,Newman TA,Pyykk I,Zou J

doi

10.3109/00016489.2011.615066

subject

Has Abstract

pub_date

2011-12-01 00:00:00

pages

1249-56

issue

12

eissn

0001-6489

issn

1651-2251

journal_volume

131

pub_type

杂志文章
  • Comparison of preoperative and postoperative radiation therapy for patients with carcinoma of the head and neck. Interim report.

    abstract::Three hundred and fifty-four patients with squamous cell carcinoma of the oral cavity, oropharynx, supraglottic larynx, hypopharynx or maxillary sinus have been randomized for preoperative radiation therapy and surgery versus surgery and postoperative radiation therapy plus, in the case of patients with lesions of the...

    journal_title:Acta oto-laryngologica

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.3109/00016488109138548

    authors: Snow JB,Gelber RD,Kramer S,Davis LW,Marcial VA,Lowry LD

    更新日期:1981-05-01 00:00:00

  • A novel method for determining the relation between nasal polyposis and oxidative stress: the thiol/disulphide homeostasis.

    abstract:CONCLUSION:It is thought that oxidative stress may be the major cause of the increase in the oxide thiol form in the study group. The relationship between oxidative stress status and dynamic thiol/disulphide in nasal polyposis now needs to be investigated. OBJECTIVES:The purpose of this study was to evaluate the relat...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016489.2016.1186833

    authors: Şimşek E,Erel O,Bicer CK,Çarlıoğlu A

    更新日期:2016-11-01 00:00:00

  • Penetration of enoxacin into middle ear effusion.

    abstract::An oral dose of 400 mg enoxacin was given to each of 19 patients with long-standing secretory otitis media (SOM). A total of 27 samples of middle ear effusion (MEE) and blood were collected at different intervals during a 6-h period after administration of the drug. The concentration of enoxacin in MEE and serum was d...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016489009125166

    authors: Sundberg L,Edén T

    更新日期:1990-05-01 00:00:00

  • Differential expression and topography of adhesion molecules in laryngeal and oropharyngeal carcinomas.

    abstract::This work describes the different patterns of expression of integrins and extracellular matrix proteins in normal and transformed mucosa in laryngeal and oropharyngeal carcinomas. Samples from each tumor group were sectioned and examined by immunohistochemistry using monoclonal antibodies raised against integrin chain...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016480252814298

    authors: Ricci E,Cavalot AL,Sanvito F,Bussi M,Albera R,Staffieri A,Cortesina G,Marchisio PC

    更新日期:2002-03-01 00:00:00

  • An evaluation of normal strial capillary transport using the electron-opaque tracers ferritin and iron dextran.

    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...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016488009127103

    authors: Santos-Sacchi J,Marovitz WF

    更新日期:1980-01-01 00:00:00

  • Angiogenesis from the eighth cranial nerve to vestibular schwannomas.

    abstract::Vascularization between vestibular schwannomas and the adjacent eighth cranial nerve was examined in order to elucidate the angiogenic effect of these tumours. Specimens from 12 patients were examined by light microscopy and immunohistochemistry (series 1), while specimens from another 17 patients were examined by lig...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016489609137712

    authors: Matsunaga T,Kanzaki J,Hosoda Y

    更新日期:1996-01-01 00:00:00

  • Patterns of framework invasion in patients with laryngeal cancer: correlation of in vitro magnetic resonance imaging and pathological findings.

    abstract::Total laryngectomy for laryngeal squamous cell carcinoma means a drastic change in the way of living for a patient. New surgical techniques such as laser surgery attempt to save the voice. To be oncologically correct, an accurate assessment of the tumor extent is necessary. Imaging is especially important in determini...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016489850182648

    authors: Declercq A,Van den Hauwe L,Van Marck E,Van de Heyning PH,Spanoghe M,De Schepper AM

    更新日期:1998-11-01 00:00:00

  • Strial prostaglandins and leukotrienes. Biochemical characteristics and interrelationship with furosemide.

    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:

    authors: Tran Ba Huy P,Ferrary E,Escoubet B,Sterkers O

    更新日期:1987-05-01 00:00:00

  • Histological evaluation of novel ossicular chain replacement prostheses: an animal study in rabbits.

    abstract:CONCLUSION:The improved biocompatibility of Bioverit II coated with a nanostructured surface shows promising qualities for use in human reconstructive middle ear surgery. In the case of chitosan-hydroxyapatite composite prostheses, further investigations regarding composition of the material, degree of purity and desig...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016480601053032

    authors: Turck C,Brandes G,Krueger I,Behrens P,Mojallal H,Lenarz T,Stieve M

    更新日期:2007-08-01 00:00:00

  • The Advanced Bionics High Resolution Mode: stimulation rates up to 5000 pps.

    abstract:CONCLUSION:The technology of stimulation rates between 1500 and 5000 pulses per second per channel (pps/ch) brings a benefit for all users. However, the fastest possible rate does not necessarily lead to best hearing performance in each individual subject. Individual optimization of stimulation rate is recommended. OB...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016480902971239

    authors: Buechner A,Frohne-Büchner C,Gaertner L,Stoever T,Battmer RD,Lenarz T

    更新日期:2010-01-01 00:00:00

  • Auditory nerve and brainstem responses in the newborn and in preschool children.

    abstract::The practicability of recording auditory nerve and brainstem responses during early childhood is demonstrated. This paper reports our experience with two different electrode locations: ear-canal/ear-lobe and ear-lobe/vertex. The test is performed with a light portable stimulus-generating and response-recording system ...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016487909126421

    authors: Montandon PB,Cao MH,Engel RT,Grajew T

    更新日期:1979-03-01 00:00:00

  • Repositioning intervals in the modified Epley's maneuver and their effect on benign paroxysmal positional vertigo treatment outcome.

    abstract:INTRODUCTION:This study showed that short and long interval treatments achieved comparable success rates. There was no statistically significant difference in the rate of early and late recurrences between the two groups. Modified Epley maneuver can be applied in a short interval time with comparable success and recurr...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016489.2016.1252852

    authors: Kahraman SS,Yildirim YS,Tugrul S,Ozturan O

    更新日期:2017-05-01 00:00:00

  • Laryngeal manifestations of gastroesophageal reflux disease in children.

    abstract::Although the association between gastroesophageal reflux disease (GERD) and laryngeal disorders in adults is well established there is still a lack of information concerning the true extent of the laryngeal complications of GERD in children. The aim of this study was to determine the laryngeal status of children with ...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/000164802753648213

    authors: Zalesska-Krecicka M,Krecicki T,Iwanczak B,Blitek A,Horobiowska M

    更新日期:2002-04-01 00:00:00

  • Otologics Middle Ear Transducer Ossicular Stimulator: performance results with varying degrees of sensorineural hearing loss.

    abstract:OBJECTIVES:This study was conducted to demonstrate the safety and efficacy of the Otologics Middle Ear Transducer (MET) Ossicular Stimulator and, in particular, to compare the audiologic benefits of this novel form of electromechanical stimulation with those of conventional acoustical amplification. MATERIAL AND METHO...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章,多中心研究

    doi:10.1080/00016480410016298

    authors: Jenkins HA,Niparko JK,Slattery WH,Neely JG,Fredrickson JM

    更新日期:2004-05-01 00:00:00

  • Establishing normal hearing with the dichotic multiple-frequency auditory steady-state response compared to an auditory brainstem response protocol.

    abstract:OBJECTIVE:To determine the clinical usefulness of the dichotic multiple-frequency (MF) auditory steady-state response (ASSR) technique for estimating normal hearing compared to a 0.5-kHz tone burst and broadband click auditory brainstem response (ABR) protocol in a sample of adults. MATERIAL AND METHODS:A comparative ...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016480310015902

    authors: Swanepoel D,Schmulian D,Hugo R

    更新日期:2004-01-01 00:00:00

  • Changes in ribbon synapses and rough endoplasmic reticulum of rat utricular macular hair cells in weightlessness.

    abstract::This study combined ultrastructural and statistical methods to learn the effects of weightlessness on rat utricular maculae. A principle aim was to determine whether weightlessness chiefly affects ribbon synapses of type II cells, since the cells communicate predominantly with branches of primary vestibular afferent e...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/000164800750045983

    authors: Ross MD

    更新日期:2000-06-01 00:00:00

  • Effect of chewing gum on static posturography in patients with balance disorders.

    abstract:CONCLUSION:The chewing gum indirectly affects postural control by influencing vestibular function to stabilize posture during upright standing. OBJECTIVES:This study aimed to evaluate the effect of chewing gum on static posturography in patients. METHODS:The subjects were 26 patients with chronic balance disorders. T...

    journal_title:Acta oto-laryngologica

    pub_type: 临床试验,杂志文章

    doi:10.3109/00016489.2011.607846

    authors: Goto F,Kushiro K,Tsutsumi T

    更新日期:2011-11-01 00:00:00

  • Can the impact of hearing impairments be modelled?

    abstract::The effects of two simulated hearing impairments (presbyacusis) on speech perception were investigated in two groups of normally hearing subjects (30 and 48 subjects, respectively). Eight patients with presbyacusis with similar hearing impairment to those in the latter simulation served as the clinical material. Word ...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/000164800750000991

    authors: Sorri M,Huttunen K,Körkkö P,Mäki-Torkko E

    更新日期:2000-03-01 00:00:00

  • Dynamic measurement of gas composition in the middle ear. II: Steady state values.

    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

    authors: Sadé J,Luntz M

    更新日期:1993-05-01 00:00:00

  • Embryogenesis of the inner ear. II. The late differentiation of the mammalian crista ampullaris in vivo and in vitro.

    abstract::The embryonic development of the crista ampullaris of the CBA/CBA mouse was followed both in organ culture of explanted inner ears of the 16th gestational day and in vivo from the 16th gestational day until the 21st day, an age corresponding to birth. Cytodifferentiation of the sensory epithelium of the crista ampulla...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016488309132868

    authors: Nordemar H

    更新日期:1983-07-01 00:00:00

  • Intratympanic methylprednisolone administration promotes the recovery of idiopathic sudden sensorineural hearing loss: a retrospective case-control study.

    abstract:BACKGROUND:Efficacy of current treatment methods in idiopathic sudden sensorineural hearing loss (ISSNHL) is still unsatisfactory. OBJECTIVE:This study aimed to discover in differences in effect between steroid applications responsible for promoting the prognosis in ISSNHL. MATERIALS AND METHODS:A study was conducted...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016489.2018.1504170

    authors: Jiang K,Li S,Cheng L,Yang J

    更新日期:2018-11-01 00:00:00

  • Microarray analysis of the effect of dexamethasone on murine cochlear explants.

    abstract:CONCLUSIONS:The microarray analysis identified 39 genes up- or down-regulated by dexamethasone in the cultured tissue of mice cochlea. Of the eight genes most highly affected, several are suggested to have protective effects in the traumatized inner ear (Fkbp5, Glucocorticoid-induced leucine zipper (Gilz), glutathione ...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016489.2010.498836

    authors: Maeda Y,Fukushima K,Hirai M,Kariya S,Smith RJ,Nishizaki K

    更新日期:2010-12-01 00:00:00

  • Changes in the characteristics of definite Meniere's disease over time in Japan: a long-term survey by the Peripheral Vestibular Disorder Research Committee of Japan, formerly the Meniere's Disease Research Committee of Japan.

    abstract:CONCLUSION:The incidence of new cases of Meniere's disease (MD) in elderly patients aged 60 years or more was found to have increased over time after correction for age distribution in the overall population. Job- and care-related fatigue may be involved in the recent increase in elderly-onset cases because physical an...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章,多中心研究

    doi:10.1080/00016480802112587

    authors: Shojaku H,Watanabe Y,Yagi T,Takahashi M,Takeda T,Ikezono T,Ito J,Kubo T,Suzuki M,Takumida M,Takeda N,Furuya N,Yamashita H,Peripheral Vestibular Disorder Research Committee of Japan.

    更新日期:2009-02-01 00:00:00

  • The alteration of ultrastructure and immunoreactivity of human embryonic organ of Corti tissue culture after exposure to aminoglycoside (neomycin) ototoxicity.

    abstract::Using electron microscopy and GABA immunohistochemistry we evaluated the effects on human embyronic organ of Corti tissue culture of exposure to the ototoxic aminoglycoside antibiotic neomycin at a dose of 1 mM for 48 to 96 hrs. Neomycin induces the formation of multilamellar myeloid structures. These lesions, found o...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016489609137929

    authors: Mu MY,Pao X,Jie T,Yu YJ

    更新日期:1996-11-01 00:00:00

  • Hoarseness and misdirected swallowing before and after antireflux surgery.

    abstract:CONCLUSION:Patients with hiatus hernia can be relieved from H, MSL and MSN by hiatus hernia repair. OBJECTIVE:It has been hypothesized that respiratory symptoms in patients with gastro-oesophageal reflux disease (GORD) may, in some cases, be due to misdirected swallowing as a consequence of defective opening of the up...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016480410017945

    authors: Mjönes AB,Ledin T,Grahn LT,Hultcrantz E

    更新日期:2005-01-01 00:00:00

  • Chronic subjective dizziness.

    abstract:CONCLUSION:Chronic subjective dizziness (CSD) is frequent and affects twice as many women as men. Anxiety is a strong predisposing factor. The pathophysiologic concept of this disorder assumes that balance function and emotion share common neurologic pathways, which might explain that the balance disorder can provoke f...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016480701805455

    authors: Odman M,Maire R

    更新日期:2008-10-01 00:00:00

  • Changes in endolymphatic hydrops after sac surgery examined by Gd-enhanced MRI.

    abstract:CONCLUSION:Endolymphatic hydrops could be a reversible inner ear pathological condition. After sac surgery, hydrops was reduced and symptoms went into remission in some cases, although vertigo suppression was not always a result of the reduced hydrops. OBJECTIVE:To examine the changes in endolymphatic hydrops detected...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016489.2013.795290

    authors: Uno A,Imai T,Watanabe Y,Tanaka H,Kitahara T,Horii A,Kamakura T,Takimoto Y,Osaki Y,Nishiike S,Inohara H

    更新日期:2013-09-01 00:00:00

  • Microdrill stapedotomy for otosclerosis with small and large preoperative air-bone gap: a retrospective comparison of results.

    abstract::Background: In otosclerosis mixed hearing loss is the most frequent symptom and arises when the focus involves the stapes footplate. Surgeons usually prefer to wait a minimum air-bone gap of 25 - 35 dB before surgery.Objectives: To evaluate the outcome of microdrill stapedotomy for otosclerosis in patients with a preo...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.1080/00016489.2020.1764618

    authors: Canale A,Albera A,Macocco F,Caranzano F,Albera R

    更新日期:2020-09-01 00:00:00

  • The effect of vasopressin upon the cochlear potentials in the guinea pig.

    abstract::The change in the EP, CM, SP and AP during perilymphatic perfusion of vasopressin (antidiuretic hormone) was examined in the guinea pig. The EP was recorded with a microelectrode through the spiral ligament of the second turn. The CM, SP and AP were measured with the differential electrodes in the basal turn. The perf...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016488609132830

    authors: Mori N,Ohta K,Matsunaga T

    更新日期:1986-03-01 00:00:00

  • Frequency preference in cervical vestibular evoked myogenic potential of idiopathic otolithic vertigo patients. Does it reflect otolithic endolymphatic hydrops?

    abstract:CONCLUSION:Idiopathic otolithic vertigo (IOV) with relatively long duration of attacks might be caused by endolymphatic hydrops in the otolith organ. OBJECTIVES:To clarify the pathophysiology underlying IOV, episodic tilting or translational sensation attacks by unknown causes, especially the possibility of endolympha...

    journal_title:Acta oto-laryngologica

    pub_type: 杂志文章

    doi:10.3109/00016489.2015.1022834

    authors: Murofushi T,Komiyama S,Hayashi Y,Yoshimura E

    更新日期:2015-01-01 00:00:00