Sökning: "carcinoid syndrome"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden carcinoid syndrome.

  1. 1. Midgut carcinoid tumours - biochemical and therapeutic aspects

    Författare :Gunnel Westberg; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; carcinoid syndrome; valvular heart disease; 5-HT; chromogranins; octreotide; hepatic arterial embolization;

    Sammanfattning : The biology of human midgut carcinoid tumour was studied experimentally in primary cell culture and clinically in patients with the midgut carcinoid syndrome. In cell cultures, tumour cells had a secretory pattern of 5-HTP, 5-HT and 5-HIAA specific for each tumour indicating individual regulation of synthesis/degradation. LÄS MER

  3. 2. Tumour Biological Factors Characterizing Metastasizing Serotonin-producing Ileocaecal Carcinoids

    Författare :Janet Lynn Cunningham; Eva Tiensuu Janson; Kjell Öberg; Irvin M. Modlin; Uppsala universitet; []
    Nyckelord :Internal medicine; endocrine tumour; midgut carcinoid; serotonin-producing neuroendocrine carcinoma; prognosis; morphology; tachykinin; connective tissue growth factor; islet autoantigen-2; morphology; carcinoid syndrome; Invärtesmedicin;

    Sammanfattning : In this study, metastasizing serotonin-producing ileocaecal carcinoid tumours (MSPCs) were examined for biological characteristics that could be used to define clinically relevant subgroups within this patient population. Possible targets for new treatment options were also explored. LÄS MER

  4. 3. Towards Immunotherapy of Midgut Carcinoid Tumors

    Författare :Sofia Vikman; Thomas Tötterman; Valeria Giandomenico; Bengt Widegren; Uppsala universitet; []
    Nyckelord :Immunology; midgut carcinoid; gene expression; immunotherapy; tumor antigen; VMAT-1; T cell; HLA-A*0201-binding peptide; IFNγ; regulatory T cell; Immunologi;

    Sammanfattning : Classical midgut carcinoids belong to neuroendocrine tumors of the gastroenteropancreatic tract (GEP-NETs) and are associated with serotonin overproduction. The term midgut is derived from the tumors’ embryological site of origin: enterochromaffin cells in the lower jejunum, ileum, caecum and the ascending colon. LÄS MER

  5. 4. Molecular studies of endocrine tumors : Insights from genetics and epigenetics

    Författare :Samuel Backman; Per Hellman; Peter Stålberg; Olov Norlén; Robert Bränström; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neuroendocrine tumors; Carcinoid; Pheochromocytoma; Aldosterone; Cancer; MEN1; Multiple endocrine neoplasia; Medicinsk vetenskap; Medical Science;

    Sammanfattning : Endocrine tumors may be benign or malignant and may occur in any of the hormone producing tissues. They share several biological characteristics, including a low mutation-burden, and may co-occur in several hereditary tumor syndromes. The aim of this thesis was to identify genetic and epigenetic aberrations in endocrine tumors. LÄS MER

  7. 5. Towards a bacterial origin of irritable bowel syndrome

    Författare :Aldona Dlugosz; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Chlamydia;

    Sammanfattning : Background: The irritable bowel syndrome (IBS) is one of the most prevalent disorders and affects about 15% of the Swedish population. Patients with IBS suffer from abdominal pain and disturbed bowel function. Despite being so common, little is known about causality in IBS. LÄS MER