Stria Vascularis Dissection
Stria Vascularis Dissection - Related Videos
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Dissection of Adult Mouse Stria Vascularis for Single-Nucleus Sequencing or Immunostaining
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The stria vascularis is vital to the generation of endocochlear potential. Here, we present the dissection of the adult mouse stria vascularis for single-nucleus sequencing or immunostaining.
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Dissection of Saccharomyces Cerevisiae Asci
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Micromanipulation of yeast cells is needed for meiotic genetic analysis or to select diploid zygotes. These micromanipulations are carried out using the microneedle of a dissection microscope. The microneedle is used to relocate cells and is controlled by a micromanipulator which are available with various degrees of automation.
FAQs
The stria vascularis supports cochlear electrical function through ion transport and potassium recycling, processes that contribute to generation of the endocochlear potential. Studying these activities in isolated tissue helps investigators connect cellular behavior in the cochlear lateral wall with the electrical conditions required for normal auditory physiology.
The cellular layers contain the structural organization needed to investigate ion transport and potassium recycling. If those layers are disrupted during isolation, the tissue may no longer represent the cochlear lateral wall accurately. Careful separation therefore improves the value of microscopy, electrophysiology, molecular assays, and immunohistochemical analyses performed afterward.
Maintaining the blood supply as much as possible helps retain an important feature of the specialized lateral-wall tissue during isolation. This preservation supports investigations of how the stria vascularis functions as a vascularized epithelium and may make observations more relevant to cochlear physiology than severely damaged preparations.
The procedure begins by exposing the cochlea, followed by removal of surrounding tissue to reveal the lateral-wall region. Researchers then carefully separate the stria vascularis while attempting to preserve its cellular layers and blood supply. The isolated preparation can subsequently undergo imaging, electrophysiological recording, molecular testing, or immunohistochemistry.
Microscopy can examine tissue structure, whereas electrophysiology can investigate electrical properties associated with cochlear function. Molecular assays assess relevant biological components, and immunohistochemistry can identify selected tissue features through labeled markers. Using these approaches together allows researchers to relate structure, electrical behavior, and molecular characteristics within the same research area.
This approach is useful when researchers need direct access to the cochlear lateral wall in studies of cochlear physiology, genetic hearing loss, acquired hearing loss, or ototoxicity. It also supports evaluation of therapies aimed at inner-ear dysfunction by providing isolated tissue for structural, electrical, molecular, or immunohistochemical investigation.