Search for dissertations about: "trachea"

Showing result 1 - 5 of 39 swedish dissertations containing the word trachea.

  2. 1. Genetic dissection of tubulogenesis in the Drosophila trachea

    Author : Johanna Hemphälä; Christos Samakovlis; Reinhard Schuh; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drosophila; trachea; transposon mutagenesis screen; fusion; Dpp; Delta; tubular dimensions; Grainyhead; Krotzkopf verkehrt; intralumenal matrix; Developmental biology; Utvecklingsbiologi;

    Abstract : The formation of branched tubular organs, such as the mammalian lung kidney and vascular system, is an essential process in animal development. The Drosophila tracheal (respiratory) system provides a genetic model system to study the highly ordered process of branch outgrowth and fusion required to form continuous tubular networks. READ MORE

  4. 2. Embryonic ecdysone-induced gene expression and progression of organ morphogenesis

    Author : Tina Mitra Chavoshi Alizadeh; Göteborgs universitet; []
    Keywords : Drosophila; trachea; hindgut; tubulogenesis; luminal matrix; ecdysteroid; EcR:Usp; dorsal closure;

    Abstract : The formation of an epithelial organ requires a set of organ-specific gene programs that instruct parallel and successive developmental events. Still, it is unclear what are the core regulatory programs and how such programs are timely coordinated within the organ. READ MORE

  5. 3. Genetic and molecular regulation of epithelial tube morphogenesis

    Author : Anna Tonning; Göteborgs universitet; []
    Keywords : epithelial tube morphogenesis; trachea; Drosophila; chitin; chitin synthase; apical extracellular matrix; paracellular diffusion barrier; tube expansion; septate junctions;

    Abstract : Networks of epithelial tubes, such as the vertebrate lung, kidney and vascular system, enable transport of gases and nutrients to all tissues in the body. These tubes are built up by a single layer of polarized epithelial cells, with the apical membrane facing the lumen. READ MORE

  6. 4. Molecular regulation of epithelial tube size

    Author : Erika Tång Hallbäck; Göteborgs universitet; []
    Keywords : Drosophila; tube shape; trachea; chitin; luminal matrix; epithelial tubes; morphogenesis; chloride channel; subapical actin;

    Abstract : In nature, epithelial tubes are vital structures in organ design and are required for transport of gases and liquids in organs, such as the vascular system, the vertebrate lung and the kidneys. The tubular epithelium is single layered, but is often reinforced by layers of muscular support. READ MORE

  7. 5. Regulation of spontaneous tone in guinea pig trachea

    Author : Staffan Skogvall; Neurofysiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tetrodotoxin; lidocaine; substance P; tachykinin; prostaglandin; indomethacin; capsaicin; neuroepithelial endocrine cells; epithelium; oxygen; oscillations; spontaneous tone; Asthma; airway smooth muscle; electrical field stimulation.; Physiology; Fysiologi;

    Abstract : Asthma is a common disease, characterized by periods of bronchoconstriction of unclear origin. This thesis examines a specific behavior of airway smooth muscle, the so-called spontaneous airway tone. It was suspected that a defect regulation of this tone may be a cause of asthmatic bronchoconstriction. READ MORE