Analysis of trkB-/-; trkC-/- double mutant mice revealed that peripheral and central inner ear sensory neurons are affected in these mice. However, a substantial amount of cochlear and vestibular neurons survive, possibly due to maintenance or upregulation of TrkA expression. To clarify the function of the TrkA receptor during development of the cochlear and vestibular ganglion we analysed trkA...

A method for the continuous perfusion of the perilymphatic space of the inner ear in the guinea pig is described. Artificial perilymph is supplied to the cochlea and drained away through a tubing system while flow rates from 10 microliters/min to 0.3 ml/min are established by gravity syphon pressure. Techniques are also presented which allow control over the temperature of the perfusate and ov...

For many years, the fields of inner ear pharmacology and hearing devices have progressed in parallel with limited interaction. Recently, there has been a considerable advancement in our understanding of the inner ear and its pathologies. Cochlear implantation is now being adapted for patients with considerable residual hearing but minimal benefit from hearing aids. A major consequence is the re...

Although there is increasing interest in the local delivery of drugs to the inner ear by applying them to the round window (RW) membrane, most drug application protocols have been empiricallybased. As a result, consequences of changes in delivery method, applied drug concentration or even small alterations in treatment protocols have been difficult to predict. Since direct measurements of drug ...

Inner ear development entails a series of sequential inductive tissue interactions where one tissue signals to direct the development of adjacent tissue[s]. Inductive signals from mesodermal, endodermal, and neuroectodermal origin control multiple aspects of early inner ear formation. Signals arising from the endoderm and mesoderm that underlie the presumptive otic field in the cephalic surface...

Therapies aimed at the protection and/or regeneration of inner ear hair cells are of great interest, given the significant monetary and quality of life impact of balance disorders. Different viral vectors have been shown to transfect various cell types in the inner ear. The past decade has provided tremendous advances in the use of adenoviral vectors to achieve targeted treatment delivery. Seve...