Sökning: "stria vascularis"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden stria vascularis.

  1. 1. Characterization of cochlear degeneration in the inner ear of the German waltzing guinea pig : a morphological, cellular, and molecular study

    Författare :Zhe Jin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cochlea; Deafness; Embryonic development; Inner ear; Melanocyte; Phenotype; Recessive genes; Recycling; Stria vascularis.;

    Sammanfattning : The German waltzing guinea pig is a new strain of animals with yet unknown gene mutation(s) displaying recessively inherited cochleovestibular impairment. The homozygous animals (gw/gw) are deaf already at birth and display Wpical waltzing behavior throughout life. LÄS MER

  3. 2. Corticosteroid receptors and Na,K-ATPase in the developing mouse cochlea

    Författare :Susan Erichsen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :inner ear; stria vascularis; endolymph production; Na; K-ATPase; glucocorticoid receptor; mineralocorticoid receptor; knockout mouse; shaker-2; mix; immunohistochemistry;

    Sammanfattning : The senses of hearing and equilibrium are highly dependent on the fluid and electrolyte homeostasis in the inner ear. The characteristic intracellular-like ionic composition of endolymph fluid in relation to the surrounding perilymph creates the endocochlear potential (EP), which is a prerequisite for inner ear function. LÄS MER

  4. 3. Mechanisms regulating ion transport in the secretory epithelia of the inner ear : an experimental study

    Författare :Charlotte Ågrup; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :inner ear; stria vascularis; endolymphatic sac; endolymph; Na ; K -ATPase; plasma membrane-bound Ca2 -ATPase; fura-2 method; immunohistochemistry; immunoblotting; guinea pig;

    Sammanfattning : The apical portions of the cells in the sensory end organs for audition and equilibrium border a fluid called endolymph. Endolymph is the only extracellular fluid in the body which is characterized by an intracellular-like ion composition. LÄS MER

  5. 4. The effect of caloric restriction on age-related hearing loss and the impact of repeated sound exposures

    Författare :Paula Mannström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The auditory system is the sensory system responsible for hearing and crucial for communication between individuals. While aging, many organs of the body start losing their function, including the hearing organ. The severity of age-related hearing loss depends on numerous factors. LÄS MER

  7. 5. The Human Spiral Ganglion

    Författare :Sven Tylstedt; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Otorhinolaryngology; human spiral ganglion; ultrastructural morphology; neural interaction; synaptophysin; connexin; membrane specializations; synapse; gap junction; tight junction; Otorhinolaryngologi; Otorhinolaryngology; Otorhinolaryngologi; Oto-Rhino-Laryngology; oto-rhino-laryngologi;

    Sammanfattning : Our knowledge of the fine structure of the Human Spiral Ganglion (HSG) is still inadequate and new treatment techniques for deafness using electric stimulation, call for further information and studies on the neuronal elements of the human cochlea. This thesis presents results of analyses of human cochlear tissue and specimens obtained during neurosurgical transpetrosal removal of life-threatening meningeomas. LÄS MER