Sökning: "spermatozoa"

Visar resultat 11 - 15 av 39 avhandlingar innehållade ordet spermatozoa.

  1. 11. Antimicrobial activity of human seminal plasma and seminal plasma proteins

    Författare :Anneli Edström; Infektionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; semenogelin; antibacterial peptides; antifungal peptides; seminal plasma; antimicrobial peptides; vaginal pH; beta-microseminoprotein; peptides;

    Sammanfattning : Seminal plasma is semen without the spermatozoa. Human seminal plasma is a complex mixture of secretions from the sex accessory glands, mainly the seminal vesicles and the prostate. Seminal plasma has high protein content and it also contains ions, sugars and low molecular weight components. LÄS MER

  3. 12. Aspects of the regulation of human sperm motility

    Författare :Pär K G Leijonhufvud; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    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

  4. 13. Reproductive biotechnologies in Swedish male alpacas

    Författare :Maria Celina Abraham; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Alpacas have become more popular during the last decades. The herds have been built up by importing live animals since reproductive biotechnologies, for example artificial insemination and semen preservation, are not well-developed in this species. LÄS MER

  5. 14. Epididymal and accessory sex gland function and semen quality

    Författare :Saad Elzanaty; Malmö (Abrahamsson) Urologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicin människa och djur ; Medicine human and vertebrates ; zinc; visco-elasticity; sperm motility; SDR5A2; PSA; persistent organohalogen pollutants; NAG; fructose; Epididymis; CASA; acessory sex gland; abstinence period;

    Sammanfattning : Infertility, defined as the inability to conceive after one year of unprotected regular intercourse, affects up to 15% of all couples of reproductive age. The infertility can originate from female, male or both partners. In up to 50% of the affected couples, a male factor is the cause of infertility. LÄS MER

  7. 15. On osmolality and sperm function during processing for assisted reproduction

    Författare :Emma Holmes; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Deep basic knowledge about sperm physiology is relevant and important to optimize the outcome of procedures used during Assisted Reproductive Technologies (ART) to select spermatozoa for fertilization. More specifically, this study examined osmolality changes and consequences for sperm motility and sperm selection in the laboratory. LÄS MER