Search for dissertations about: "cell ultrastructure"

Showing result 11 - 15 of 46 swedish dissertations containing the words cell ultrastructure.

2. 11. Mechanisms and time course of cell death in embryonic nigral tissue and intrastriatal transplants

   Author : Mia Emgård; Neurobiologi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hypothermia; resveratrol; free radicals; ultrastructure; electron microscopy; mesencephalic; transplantation; rat; Parkinson s disease; dopamine; Neurology; neuropsychology; neurophysiology; Neurologi; neuropsykologi; neurofysiologi;

   Abstract : Parkinson’s disease (PD) is the second most common neurodegenerative disorder and severely affects about one in a hundred persons over the age of fifty years. In PD, there is a reduced striatal concentration of the neurotransmittor dopamine, mainly caused by a degeneration of the dopaminergic neurons in the substantia nigra. READ MORE

4. 12. Significance of mitochondrial ultrastructure for bioenergetics

   Author : Alexandra Toth; Martin Ott; Vladimir Gogvadze; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioenergetics; mitochondrial ultrastructure; respiratory chain; Saccharomyces cereviciae; ATP synthase; apoptosis; cytochrome c; supercomplexes; Biochemistry; biokemi;

   Abstract : Mitochondria are the site where most of the energy from food is converted into adenosine triphosphate (ATP). This process is taking place at the inner membrane (IM) of mitochondria, and is called oxidative phosphorylation, and results in the establishment of a proton motive force (pmf). READ MORE

5. 13. Ultrastructure of the Primary Cell Wall of Softwood Fibres Studied using Dynamic FT-IR Spectroscopy

   Author : Jasna Stevanic Srndovic; Lars Wågberg; Per M. Claesson; Paul Gatenholm; KTH; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; primary cell wall; polymer interactions; viscoelasticity; dynamic FT-IR spectroscopy; dynamic 2D FT-IR spectroscopy; cellulose; xyloglucan; pectin; protein; lignin; low degree sulphonation; cellulose allomorphs; Wood fibre and forest products; Träfiber- och virkeslära;

   Abstract : The primary cell wall is a complex multipolymer system whose composite structure has been mostly determined from chemical and biochemical studies. Although the primary cell wall serves a central role, with regard to the connective properties of fibres, knowledge about the interactions among the polymers, when it comes to the mechanical properties, is very limited. READ MORE

6. 14. Salivary gland neoplasms : studies on the cytoskeleton, the secretory apparatus and the nuclear DNA content

   Author : Hans Gustafsson; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Salivary gland neoplasms; intermediate filaments; immuno- histochemistry; ultrastructure; DNA; development; histogenesis; progno¬sis;

   Abstract : The heterogeneity of salivary gland neoplasms have made classification and prognostication of these tumours sometimes difficult, and the in­troduction of techniques, such as enzyme and carbohydrate histochemis­try and electron microscopy have only to a certain extent increased our knowledge in these respects. In the present study immunohistochemical methods have been used to identify intermediate filament proteins (IFP) in normal fetal and adult parotid glands, as well as in salivary neo­plasms. READ MORE

7. 15. Mapping ultrastructural effects of proteotoxic stress on S. cerevisiae

   Author : Katharina Keuenhof; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; yeast; heat shock; stress; electron microscopy; ultrastructure; nuclear envelope budding;

   Abstract : Cells are the basic building blocks of any living being, whether the organism consists of only one, or many cells. The different cellular components interact with one another to maintain the viability of the cell. An essential element of cells are proteins – peptide chains folded into a specific conformation unique to every protein. READ MORE