Sökning: "neonatal brain injury"

Visar resultat 1 - 5 av 39 avhandlingar innehållade orden neonatal brain injury.

  1. 1. Caspase-dependent and caspase-independent neuronal injury in the developing brain

    Författare :Changlian Zhu; Göteborgs universitet; []
    Nyckelord :hypoxia ischemia; neonatal; cell death; caspase; apoptosis-inducing factor; brain; apoptosis; autophagy; nitric oxide;

    Sammanfattning : Aims: To investigate the mechanisms of neuronal cell death after hypoxia-ischemia in the developing brain.Methods: Rats or mice were subjected to left common carotid artery ligation plus hypoxia. Animals were sacrificed at certain time points after hypoxia-ischemia. LÄS MER

  3. 2. Tolerance and injury mechanisms in the developing CNS

    Författare :Malin Gustavsson; Göteborgs universitet; []
    Nyckelord :hypoxia-ischemia; neonatal; brain; PARP-1; tolerance; global gene expression; apoptosis; cerebral blood flow;

    Sammanfattning : The pathophysiological mechanisms underlying the development of hypoxic-ischemic (HI) brain injury has been the subject of extensive research yet a neuroprotective strategy to limit its progression is lacking.OBJECTIVES: The aim of the present thesis was to obtain a better understanding of the mechanisms involved in neonatal HI, specifically to study I) the involvement of Poly ADP-ribose) polymerase (PARP)-1 in HI, II) the effect of hypoxic PC on brain injury and function after HI in the long-term perspective, III) the effect of hypoxic PC on global gene expression, in particular the involvement of apoptosis related genes, and IV) the vascular response to hypoxic PC. LÄS MER

  4. 3. Apoptosis-related mechanisms in the immature brain after hypoxia-ischemia

    Författare :Xiaoyang Wang; Göteborgs universitet; []
    Nyckelord :hypoxia-ischemia; neonatal; caspase; ERK; XIAP; EPO; asialoEPO; brain;

    Sammanfattning : Aims: To characterize the activation of caspases-3 and extracellular signal-regulated kinase (ERK) in the neonatal brain after hypoxia-ischemia (HI) injury and evaluate the neuroprotective effect of X-linked inhibitor of apoptosis (XIAP) protein, erythropoietin (EPO) and the non-erythropoietic derivative asialoEPO. Methods: Seven-day-old rats or 9-day-old mice were subjected to HI. LÄS MER

  5. 4. Aspects of pathological apoptosis in the immature brain after hypoxia-ischemia

    Författare :Ulrika Hallin; Göteborgs universitet; []
    Nyckelord :neonatal; rat; brain; hypoxia-ischemia; necrosis; apoptosis; calpain; caspase; Bcl-2; Bax; mitochondria; calcineurin.;

    Sammanfattning : The cause of mechanisms underlying perinatal brain injury is not fully known, but it results in a wide variety of neurological impairments in the affected children. When injured, neurons of the newborn brain are prone to undergo programmed cell death, apoptosis, since this genetic program is normally activated in some cells during development of the nervous system, even in the perinatal period. LÄS MER

  7. 5. Protection of the developing brain with trophic factors. Signaling through serine/threonine kinase pathways

    Författare :Katarina Gustafson Brywe; Göteborgs universitet; []
    Nyckelord :hypoxia-ischemia; neonatal; brain; growth factors; ser thr kinases;

    Sammanfattning : Background: Perinatal asphyxia still constitutes a clinical hazard associated withconsiderable neurologic morbidity. There is today no therapy in clinical use toprotect the brain after such insult. LÄS MER