Sökning: "OPG"

Visar resultat 1 - 5 av 28 avhandlingar innehållade ordet OPG.

  1. 1. Estrogen signaling in stroke : genetic and experimental studies

    Författare :Magnus Strand; Tommy Olsson; Jan Hillert; Umeå universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; intracerebral hemorrhage; ischemic stroke; genetics; ERα; OPG; 17β-estradiol; enriched environment; learning and memory; hippocampus; NGFI-A; Medicine; Medicin;

    Sammanfattning : Stroke is a common and multifactorial disease influenced by genetic and environmental risk factors. It is a highly heterogeneous entity consisting of two main types, ischemic (80%) and hemorrhagic (20%) stroke. The most common form of hemorrhagic stroke is intracerebral hemorrhage (ICH). LÄS MER

  3. 2. Osteoprotegerin in Bone Metabolism

    Författare :Helena Brändström; Uppsala universitet; []
    Nyckelord :Medical sciences; Bone; osteoprotegerin; osteoblasts; polymorphism; cytokines; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Medicine; medicin;

    Sammanfattning : Bone turnover, remodeling, is a constant process replacing old bone with new. This complex cellular event involves resorption by osteoclasts and formation of new bone by osteoblasts. The balance between osteoblastic and osteoclastic activity is under regulation by several endocrine and paracrine factors. LÄS MER

  4. 3. On the Role of Osteoprotegerin/RANK/RANKL System in the Interaction between Prostate Cancer and Bone

    Författare :Hendrik Penno; Östen Ljunggren; Olof Nilsson; Andreas Kindmark; Pernilla Lundberg; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; metastases; bone; prostate cancer; osteoprotegerin; RANKL; osteoporosis; genetics; polymorphisms; Orthopaedics; Ortopedi;

    Sammanfattning : Metastases to bone are observed in around 80% of prostate cancer patients and represent the most critical complication of advanced prostate cancer. Unlike other solid tumors that are associated with osteolytic bone metastases, prostate cancer bone metastases stimulate osteoblastic activity with sclerosis in the bone lesions as a consequence. LÄS MER

  5. 4. Inflammatory markers and prognosis in acute coronary syndromes

    Författare :Anna M Jansson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :acute coronary syndrome;

    Sammanfattning : Background: Inflammation both accelerates atherosclerosis and contributes to the activation and rupture of the atherosclerotic plaque. Several markers of inflammation, such as CRP, have shown prognostic merit in patients with acute coronary syndromes (ACS). LÄS MER

  7. 5. Optical Parametric Devices in Periodically Poled LiTaO3

    Författare :Martin Levenius; Katia Gallo; Valdas Pasiskevicius; Giuseppe Leo; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; parametric processes; frequency downconver-sion; quasi-phase matching; LiTaO3; broadband downconversion; quadratic cascading; nonlinear photonic crystals; twin-beam generation;

    Sammanfattning : Optical parametric frequency conversion based on quasi phase matching (QPM) in nonlinear optical crystals is a powerful technique for generating coherent radiation in wavelength ranges spanning from the mid-infrared (mid-IR) to the blue, displaying low thermal load and high efficiency.This thesis shows how QPM in one- (1D) or two-dimensional (2D) lattices can be employed to engineer novel devices for parametric downconversion in the IR, af-fording freedom in designing both spectral and angular properties of the parametric output. LÄS MER