Search for dissertations about: "monozygotic twins"

Showing result 1 - 5 of 51 swedish dissertations containing the words monozygotic twins.

  2. 1. Epidemiology and genetics in ulcerative colitis with special reference to twins and smoking

    Author : Curt Tysk; Linköpings universitet; []
    Keywords : ulcerative colitis; ulcerative proctitis; epidemiology; incidence; prevalence; genetics; twins; colonic glycoproteins; smoking; primary sclerosing cholangitis; MEDICINE; MEDICIN;

    Abstract : In an epidemiologic study of ulcerative proctocolitis during the period 1963-1987, annual incidence rates increased fourfold and was during the last 10 years 13.1/105 inhabitants. The prevalence on December 31, 1987 was 234/105 inhabitants. Both rates are high but close to recent reports. READ MORE

  4. 2. Crohn's disease : Studies on epidemiology, twins, aetiological factors and clinical course with special reference to smoking

    Author : Eva Lindberg; Linköpings universitet; []
    Keywords : Crohn s disease; epidemiology; incidence; prevalence; smoking; genetics; twins; dietary antigens; yeast; Saccharomyces cerevisiae; mannan; gliadin; betalactoglobulin; ovalbuntin; MEDICINE; MEDICIN;

    Abstract : In an epidemiological study of the incidence of Crohn's disease in Orebro county during the 25-year period 1963-1987, the mean annual incidence was 6.1/105 inhabitants. During the first five year period the mean incidence was 4.3 but during the following four quinquennia the incidence was stable at around 6. READ MORE

  5. 3. Inflammatory bowel disease in twins : studies of genetics and environmental factors

    Author : Jonas Halfvarson; Salvador Peña; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : The aetiology of inflammatory bowel disease (IBD) is unknown but considered to be caused by interplay of genetic and environmental factors.The aims of this thesis were to study the influence of genetics and environmental factors in aetiology, disease phenotype and levels of Anti-Saccharomyces cerevisiae antibodies (ASCA), as well as to assess whether CARD15/NOD2 polymorphisms explain the influence of genetics in these aspects. READ MORE

  6. 4. Family, Friend, or Foe? Essays in Empirical Microeconomics

    Author : Hilda Ralsmark; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Family size; earnings; health; twins; well-being; divorce law; media; social tolerance; hate crime;

    Abstract : This thesis consists of four studies that deal with how individual outcomes are shaped by social interactions. The scope of the thesis ranges from relationships between individuals in what is arguably the most fundamental building block in society today — the family — to more generalized relationships between different groups in society. READ MORE

  7. 5. Post-zygotic Genetic Variation in Health and Disease

    Author : Hamid Reza Razzaghian; Jan P. Dumanski; David Gisselsson Nord; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Post-zygotic genetic variation; monozygotic twins; copy number variation; single nucleotide polymorphism; variable number tandem repeat; Medical Genetics; Medicinsk genetik;

    Abstract : Post-zygotic genetic variation has previously been shown in healthy individuals and linked to various disorders. The definition of post-zygotic or somatic variation is the existence of genetically distinct populations of cells in a subject derived from a single zygote. READ MORE