Sökning: "human spermatozoa"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden human spermatozoa.

  1. 1. Perspectives on the Biological Role of Human Prostasomes

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Lena Carlsson; Uppsala universitet.; [2001]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medical sciences; Prostasomes; cryopreservation; human spermatozoa; sperm motility; anti- prostasome antibodies; PC-3 cells; Bacillus megaterium; antibacterial; antisperm antibodies; complement activation; sperm agglutination; infertility; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Clinical Chemistry; klinisk kemi;

    Sammanfattning : Prostasomes are extracellularly occurring organelles which are secreted in human semen by the prostate gland. Prostasomes have several known biological activities, but their physiological function is still unclear. In this thesis some new aspects were studied on the biological role of the prostasomes. LÄS MER

  2. 2. Zinc and human sperm chromatin

    Detta är en avhandling från Linköping : Linköpings universitet

    Författare :Svante Kjellberg; Linköpings universitet.; Linköpings universitet.; [1993]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICINE; MEDICIN;

    Sammanfattning : X-rny microanalysis, Sephadex® chromatography of seminal plasma and exposure of spermatozoa to sodium dodecyl sulphate (SDS), were methods used to study the zinc content of sperm chromatin, the nature of the zinc binding ligands present in seminal plasma and the stability of the sperm chromatin in whole semen samples from fertile and infertile men. Split ejaculates were used to study the same variables in different fractions of the same ejaculate. LÄS MER

  3. 3. GABA and human spermatozoa : characterization and regulation of GABA transport proteins

    Detta är en avhandling från Stockholm : Karolinska Institutet, false

    Författare :Arthur Aanesen; Karolinska Institutet.; Karolinska Institutet.; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; GABA; spermatozoa; GABA transport; acrosome reaction; sperm motility; progesterone; protein kinase C; GAT-1; GAT-2; GAT-3; BGT-1;

    Sammanfattning : The present project aimed at investigating the interaction between GABA and human spermatozoa under in vitro conditions. Our initial hypothesis was that human spermatozoa had specific binding proteins for GABA and that the binding of GABA to such binding sites could affect sperm fimction. LÄS MER

  4. 4. Aspects of the regulation of human sperm motility

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Women's and Children's Health

    Författare :Pär K.G. Leijonhufvud; Karolinska Institutet.; Karolinska Institutet.; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : In this thesis I address some of the possible causes for oligozoospermia and low sperm motility, two factors that, singly or in combination, are often seen in cases of male subfertility. In the first study we evaluated the effect on human spermatozoa of the toxicity of compounds present in diesel exhaust. LÄS MER

  5. 5. Studies on antigens of the ABO and HL-A systems on human spermatozoa and in the seminal plasma

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Györgyi Kerék; [1975]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER