Sökning: "Testis"

Visar resultat 6 - 10 av 116 avhandlingar innehållade ordet Testis.

  1. 6. Endocrine Disruption in Amphibians : Developmental Effects of Ethynylestradiol and Clotrimazole on the Reproductive System

    Författare :Irina Gyllenhammar; Cecilia Berg; Ingvar Brandt; Lena Holm; Joakim Larsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Test system; Xenopus tropicalis; Rana temporaria; sex ratio; sex differentiation; fertility; aromatase; ovary; testis; oviduct; Biology; Biologi;

    Sammanfattning : Amphibian populations are declining world-wide and one of the suggested reasons is environmental pollutants. Studies of long-term effects on the reproductive system in frogs following larval exposure to environmental pollutants are scarce. It is therefore important to develop methods to study developmental reproductive toxicity in amphibians. LÄS MER

  3. 7. Exploring the steroidogenic activity of glutathione transferases across species

    Författare :Helena Lindström; Bengt Mannervik; Kjell Wikvall; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Glutathione transferase; steroidogenesis; GST A3-3; testis; androstenedione; pregnenedione; equine; steroidogenesis inhibition; Drosophila GSTE14; neurokemi med molekylär neurobiologi; Neurochemistry with Molecular Neurobiology;

    Sammanfattning : Glutathione transferases (GSTs) comprise a superfamily of enzymes prominently involved in detoxication. However, some GSTs have developed alternative functions. LÄS MER

  4. 8. Antimicrobial and xenobiotic defence in the mammalian testis

    Författare :Mona-Lisa Strand; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Different mechanisms exist in the mammalian testis to protect the germ cells from autoimmune attack, invading microbes, and xenobiotic induced toxicity, which would otherwise be deleterious to the preservation of fertility. The general aim of this thesis was to study these testicular defence mechanisms, including the structural building blocks of the blood– testis barrier (BTB), antimicrobial peptides, proinflammatory cytokines and ATP-binding cassette (ABC) transporter proteins. LÄS MER

  5. 9. Identification and characterization of stem Leydig cells in the testis

    Författare :Luise Landreh; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : In the testis, several cell types are needed to ensure male fertility, among them the testosterone-producing Leydig cells. Testosterone supports the maturation of sperm and maintains the male phenotype. Functional Leydig cells are therefore required to prevent testicular malfunction. LÄS MER

  7. 10. Functional proteomics : Generation and analysis of cDNA-encoded proteins

    Författare :Susanne Gräslund; KTH; []
    Nyckelord :functional genomics; functional proteomics; gene characterization; E. coli expression; affinity purification; immunolocalization; mouse testis; spermatogenesis; rabbit antibodies; affibody; tektin; Anaphase-promoting complex or cyclosome.;

    Sammanfattning : .... LÄS MER