Search for dissertations about: "sperm motility"

Showing result 6 - 10 of 20 swedish dissertations containing the words sperm motility.

  2. 6. Aspects of the regulation of human sperm motility

    Author : Pär K G Leijonhufvud; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : 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. READ MORE

  4. 7. Epididymal and accessory sex gland function and semen quality

    Author : Saad Elzanaty; Malmö (Abrahamsson) Urologi; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 8. Mammalian sperm flagella and cilia

    Author : Jikui Guan; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : In mammals, both sperm flagella and cilia are axoneme-containing organelles. The sperm flagella are major parts of the spermatozoa that are male gametes produced in the testis from progenitor spermatogonia through a process called spermatogenesis. READ MORE

  6. 9. Sperm Membrane Channels, Receptors and Kinematics : Using boar spermatozoa for drug toxicity screening

    Author : Alejandro Vicente Carrillo; Heriberto Rodríguez-Martínez; Karl-Eric Magnusson; Rudolf Rigler; Vesa Loitto; Stefan Arver; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Plasma membrane; membrane channels; membrane receptors; kinematics; 3Rprinciples; spermatozoa; boar.;

    Abstract : Internal fertilization usually implies that a spermatozoon, with intact attributes for zygote formation, passes all hurdles during its transport through the female genitalia and reaches the oocyte. During this journey, millions to billions of other spermatozoa perish. READ MORE

  7. 10. Studies on genetic aberrations as possible predictors of the outcome of assisted reproduction

    Author : Mona Bungum; Malmö Reproduktionsmedicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; assisted reproduction; IUI; Sperm chromatin; ICSI; intra-individual variation; fertilisation failure genetic aberration; Protein C inhibitor gene; sperm DNA damage SCSA; IVF;

    Abstract : Traditionally, diagnosis of male infertility has relied upon microscopic assessment of semen. The normality criteria set by the World Health Organization (WHO) in regard to sperm concentration, motility and morphology are, however, poor predictors of fertility. READ MORE