Search for dissertations about: "spermatozoa"

Showing result 6 - 10 of 39 swedish dissertations containing the word spermatozoa.

  2. 6. Flatworm spermiogenesis and spermatozoa studied by light and electron microscope methods

    Author : Jan Hendelberg; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  4. 7. Role of oxidative stress and antioxidants in domestic and non-domestic cat spermatozoa : with special reference to cryopreservation

    Author : Paweena Thuwanut; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Living cells, including spermatozoa, stored under aerobic conditions require oxygen to support their normal metabolism. Excessive levels of metabolites (reactive oxygen species; ROS) can cause cell damage or lipid peroxidation. The ROS and lipid peroxidation can be detected during preparation and cryopreservation of mammalian spermatozoa. READ MORE

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

    Author : Györgyi Kerék; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  6. 9. Sperm maturation and conservation in felids

    Author : Panisara Kunkitti; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Many of the world's wild feline species are threatened by extinction. Gene banks are created with the aim of preserving their genetic materials. In case of unexpected death of the animals, epididymal sperm preservation can be used to avoid loss of genetic material. READ MORE

  7. 10. Zinc and human sperm chromatin

    Author : Svante Kjellberg; Björn Afzelius; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : 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. READ MORE