Search for dissertations about: "Retina"

Showing result 11 - 15 of 150 swedish dissertations containing the word Retina.

  2. 11. Retinal glucose metabolism and blood flow : Effects of photic stimulation

    Author : Lin Wang; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology and anatomy; blood flow; darkness; flicker; glucose oxidation; glycolysis; lactate; light; nitric oxide; optic nerve; retina; Fysiologi och anatomi; Physiology and pharmacology; Fysiologi och farmakologi; Physiology; fysiologi;

    Abstract : Retinal glucose metabolism was investigated under different light conditions in cats,pigs and rabbits. Glycolysis and glucose oxidation in the outer and inner parts of theretina were assessed by determining arteriovenous concentration differences foroxygen, glucose and lactate, as well as local blood flow. READ MORE

  4. 12. The cultured neuroretina: development, survival and transplantation

    Author : Karl Engelsberg; Lund Oftalmologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oftalmologi; Ophtalmology; transplantation; development; culture; retina;

    Abstract : In the cultured immature rat full-thickness neuroretina, massive apoptosis appears in the GCL within hours after explantation, but in the ONL cell death is low. Microglia cells become activated when the retina is kept in culture and are found in the GCL within 24 hours of culture. READ MORE

  5. 13. Photoreceptors in experimental retinal cell transplants

    Author : Bengt Juliusson; Lund Oftalmologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Ophtalmology; immunohistochemistry; mice; rabbits; rats; interphotoreceptor matrix; retinal pigment epithelium; photoreceptors; Retina; transplantation; Oftalmologi;

    Abstract : The main objective of this thesis was to investigate the fate of photoreceptor cells when using different strategies for retinal cell transplantation. Comparing transplantation of fragments of embryonic retina with cell suspensions of the same tissue we found that transplantation of fragments of embryonic retina result in mature transplants with a higher degree of cellular organization than transplantation of cell suspensions of embryonic retina. READ MORE

  6. 14. The importance of astroglial cells in ischemia, regeneration and angiogenesis

    Author : Andrea Lundkvist; Göteborgs universitet; []
    Keywords : astrocytes; Müller cells; retina; intermediate filaments; GFAP; vimentin; angiogenesis; VEGF-A; guidance; matrix-metalloprotease;

    Abstract : Astrocytes in the CNS communicate with both neurons and blood vessels. In many CNS pathologies, astrocytes respond by becoming reactive. Whether their performance at this stage is beneficial or detrimental for CNS function is unclear. READ MORE

  7. 15. Development of central catecholaminergic neuronal systems in the lizard Anolis sagrei

    Author : Agneta Rehn; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; double labelling; immunohistochemistry; interplexiform cells; amacrine cells; catecholamines; development; retina; Reptiles; brain; Zoology; Zoologi;

    Abstract : Catecholamines, comprising the neurotransmitters dopamine (DA), noradrenaline (NA) and adrenaline (A) are synthesized by specific enzymes (tyrosine hydroxylase (TH), dopamine ß-hydroxylase (DBH), phenylethanolamine-N-methyltransferase (PNMT)) in the central nervous system. The development and distribution of different catecholaminergic systems have been described in both the brain and retina of the lizard Anolis sagrei. READ MORE