Sökning: "artificial graft"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden artificial graft.

  1. 1. The role of the adventitia and perivascular tissue for the formation of intimal hyperplasia

    Författare :Per Fogelstrand; Göteborgs universitet; []
    Nyckelord :Intimal hyperplasia; adventitia; perivascular tissue; smooth muscle cells; fibroblasts; balloon injury; vein graft; artificial graft;

    Sammanfattning : Symptomatic atherosclerosis is commonly treated with balloon angioplasty or bypass surgery. About 30% of the interventions will re-narrow within a year due to restenosis and graft-stenosis. Thickening of the luminal layer, the intima, is an important component in these side-effects. LÄS MER

  3. 2. Survival of onlay bone grafts. A study in the adult rat

    Författare :Monica Gordh; Lunds universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rats; polytetrafluoroethylene; artificial; membrane; immunohistochemistry; cortical perforations; bone morphogenetic protein; bone marrow; bone; bone grafts; Odontologi; stomatology; Odontology; skull; tibia;

    Sammanfattning : The aim of this thesis was to study onlay bone grafting in the adult rat to improve graft incorporation and perservation of graft size. In 167 adult isogeneic lewis rats, the size maintenance and bone formation at the graft-host interface of uni- and bicortical onlays positioned in various environments and treatments were investigated. LÄS MER

  4. 3. The value of artificial disc replacement in cervical radiculopathy

    Författare :Martin Skeppholm; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background; Artificial disc replacement (ADR) is a motion-preserving implant and a further development of existing surgical implants for the treatment of cervical radiculopathy. Theoretically, an artificial disc could decrease stress on adjacent segment and thereby prevent rapid progression of degenerative changes in surrounding segments. LÄS MER

  5. 4. Nerve gap repair by the use of artificial conduits and cultured cells

    Författare :Daniel Kalbermatten; Mikael Wiberg; Ulrich Mennen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adipose stem cells; cell matrix; fibrin; nerve conduit; nerve gap; Surgery; Kirurgi; kirurgi; Surgery;

    Sammanfattning : Peripheral nerve injuries are often associated with loss of nerve tissue and require autologous nerve grafts to provide a physical substrate for axonal growth. This thesis investigates the use of fibrin as both a tubular conduit to guide nerve regeneration and also as a matrix material to suspend various regenerative cell types within/on poly-3-hydroxybutyrate (PHB) nerve conduits. LÄS MER

  7. 5. Artificial blood vessels - Studies on endothelial cell and blood interactions with bacterial cellulose

    Författare :Helen Fink; Göteborgs universitet; []
    Nyckelord :bacterial cellulose; endothelial cells; thrombogenicity; xyloglucan; contact activation; imaging of coagulation; vascular grafts; RGD; cell adhesion; bioreactor; xyloglucan;

    Sammanfattning : Cardiovascular diseases are still the number one cause of death or invalidity in the western world today. Atherosclerotic plaques and restenosis can result in severe occlusions of peripheral and coronary arteries. Treatment depends on the severity of the disease and includes drug therapy and bypass surgery. LÄS MER