Sökning: "hypoxia"

Visar resultat 1 - 5 av 383 avhandlingar innehållade ordet hypoxia.

  1. 1. Hypoxia and Hypoxia-Inducible Factors in Normal and Malignant Breast Epithelium

    Detta är en avhandling från Department of Laboratory Medicine, Lund University

    Författare :Karolina Helczynska; [2008]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Differentiation; Hypoxia; Breast cancer; Breast; HiF-1; HiF-2; 3D-cultures; prognosis;

    Sammanfattning : Breast cancer treatment is based on tumor and patient related factors such as tumor stage, grade, hormonal status, HER2 status, patient age, and family history to name a few. It is today widely acknowledged that hypoxia and hypoxia-inducible factors (HIF:s) contribute to tumor progression. LÄS MER

  2. 2. Imaging the tumor microenvironment the dynamics and modification of hypoxia

    Detta är en avhandling från Umeå : Strålningsvetenskaper

    Författare :Anna Ljungkvist; Peggy L. Olive; [2003]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; tumor microenvironment; double hypoxic marker method; proliferation; hypoxia; hypoxic half-life; Radiologisk forskning; MEDICINE Physiology and pharmacology Radiological research; MEDICIN Fysiologi och farmakologi Radiologisk forskning; diagnostisk radiologi; Diagnostic Radiology;

    Sammanfattning : The tumor vasculature is poor and heterogeneous which may result in inadequate oxygenation and changed energy status. In addition the balance between cell proliferation and the rate of cell death is disturbed, which results in tumor growth. LÄS MER

  3. 3. MOLECULAR ASPECTS OF ENDOTHELIAL CELL FUNCTION AND HYPOXIA-DEPENDENT TUMOR ANGIOGENESIS

    Detta är en avhandling från Division of Oncology, Department of Clinical Sciences

    Författare :Paulina Kucharzewska; [2011]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hypoxia; hypoxia-inducible factor; angiogenesis; anti-angiogenic therapy; endothelial cell; polyamines; microRNA; extracellular membrane vesicles; exosomes; glioblastoma;

    Sammanfattning : Hypoxia, or deficient oxygen levels, is an inherent feature of rapidly expanding tumor tissue. In order to survive in the hostile, hypoxic environment and to restore the supply of oxygen and nutrients tumor cells activate a variety of adaptive mechanisms. Among them, hypoxia-induced angiogenesis, i.e. LÄS MER

  4. 4. Hypoxia, PDGF and VEGF in Vascular Development

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Ingrid Nilsson; Lena Claesson-Welsh; Randall Johnson; [2006]
    Nyckelord :Cell biology; hypoxia; VEGF; VEGFR-3; PDGF; endothelial cell; embryonic stem cell; angiogenesis; lymphangiogenesis; Cellbiologi;

    Sammanfattning : The mechanisms behind many important aspects of blood- and lymphatic vessel formation have yet not been elucidated in detail. The primary objectives of this thesis have therefore been to study the effects of hypoxia, platelet-derived growth factor (PDGF) and vascular endothelial growth factors (VEGFs) on vascular development and function. LÄS MER

  5. 5. Hypoxia and differentiation in human neuroblastoma cells

    Detta är en avhandling från Lund University: Faculty of Medicine

    Författare :Helén Nilsson; [2005]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ontogeny; embryology human ; Utvecklingsbiologi; teratologi; embryologi människa ; teratology; cytogenetik; Development biology; cytogenetics; Genetik; Genetics; Medicin människa och djur ; HIF; Medicine human and vertebrates ; MYCN; Hypoxia; differentiation; Neuroblastoma;

    Sammanfattning : The childhood tumour neuroblastoma is derived from immature cells of the sympathetic nervous system, which have become arrested at different maturation stages. Neuroblastoma is a malignancy with a high degree of heterogeneity, and there is a correlation between a poor differentiation status and a more aggressive phenotype. LÄS MER