Sökning: "Biovetenskap"

Visar resultat 1 - 5 av 665 avhandlingar innehållade ordet Biovetenskap.

  1. 1. Hormone concentrations during pregnancy and maternal risk of epithelial ovarian cancer

    Författare :Helena Schock; Eva Lundin; Annika Idahl; Renée Turzanski Fortner; Anne Zeleniuch-Jacquotte; Shelley S Tworoger; Umeå universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; epithelial ovarian cancer; sex steroid hormones; IGF-I; placental GH; AMH; pregnancy; prospective study; patologi; Pathology;

    Sammanfattning : Background: The aim of this thesis was to study the relationship of pre-diagnostic circulating concentrations of sex steroid hormones (androgens, estradiol, 17-hydroxyprogesterone, and progesterone), growth factors (insulin-like growth factor-I (IGF-I), placental growth hormone (GH)), sex hormone binding globulin (SHBG), and anti-Müllerian hormone (AMH) with risk of epithelial ovarian cancer (EOC) overall, and by tumor invasiveness and histology. A longitudinal study was used to assess patterns of hormonal changes during a single pregnancy, and in two consecutive pregnancies. LÄS MER

  3. 2. Genomic variation and molecular mechanisms of the host response to gastrointestinal nematodes in small ruminants

    Författare :Hadeer Moursy Aboshady; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Gastrointestinal nematode (GIN) infections are one of the major constrains for sheep and goat production worldwide. One of the promising control strategies is the genetic selection for resistant animals as there are no issues due to anthelmintic resistance and it aligns to demands for chemical-free food. LÄS MER

  4. 3. Digestion and metabolism of carbohydrates in fish

    Författare :Rani Abro; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : This thesis deals with the digestion and metabolism of carbohydrates in Arctic charr, Eurasian perch and tilapia. Two sources of carbohydrates, native starch (wheat) and chitin (zygomycete biomass), were evaluated. Gut tissue of Arctic charr displayed significant chitinase activity, of both endo- and exo-chitinase forms. LÄS MER

  5. 4. Development and evaluation of a subunit DIVA vaccine against bluetongue virus serotype 8 in cattle

    Författare :Jenna Anderson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Bluetongue virus (BTV) causes the primarily vector-borne bluetongue disease of ruminants, which poses a permanent threat to Europe since new serotypes and strains are frequently introduced. Vaccination of cattle is essential to control BTV outbreaks. LÄS MER

  7. 5. Equine trait mapping : from disease loci to the discovery of a major gene controlling vertebrate locomotion

    Författare :Lisa Andersson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Assigning function to genes is essential for a better understanding of biological systems. To date, approximately half of the genes in the vertebrate genome have known function. Domestic animals are a rich source for trait mapping and in this thesis we have mapped three distinct equine phenotypes. LÄS MER