Sökning: "Semen preservation"

Hittade 5 uppsatser innehållade orden Semen preservation.

  1. 1. Comparison between two different freezing solutions toevaluate the sperm survival after vapor freezing andsperm preparation.

    Kandidat-uppsats,

    Författare :Daniela Ordonez; [2016]
    Nyckelord :Semen preservation; human sperm; gradient wash; cryopreservation; in vitro fertilization;

    Sammanfattning : Cryopreservation is used to freeze and store donor’s sperm, from men who are going throughcertain medical treatments such as chemotherapy or radiotherapy and from men withazoopermia or severe oligozoospermia. Stored sperm samples are used in artificialreproductive technologies. LÄS MER

  3. 2. Utvärdering av sojalecithin som ett alternativ till äggula vid frysning av hundsperma

    Master-uppsats, SLU/Dept. of Clinical Sciences

    Författare :Elaine Sandell; [2015]
    Nyckelord :spermafrysning; hundsperma; sojalecithin; äggula; cryopreservation; canine semen; soybean lecithin; egg yolk;

    Sammanfattning : Fryst eller kyld sperma används ofta vid artificiell insemination på hund. Skador kan uppstå på spermierna under frysningsprocessen. För att spermierna ska bibehålla sin viabilitet och undvika skador tillsätts spädningsvätskor som bland annat innehåller sockerarter, antibiotika, glycerol och äggula. LÄS MER

  4. 3. IMPACT OF CRYOPRESERVATION MEDIA ON SPERM MOTILITY

    Kandidat-uppsats,

    Författare :Stephanie Petersen; [2014]
    Nyckelord :Osmatic chock; Cryopreservation; Gradient centrifugation; Sperm progression;

    Sammanfattning : The result of cryopreservation of semen is crucial for patients in need of fertility preservation.The cryopreservation method is not optimized since only 10 % the sperms are expected tosurvive the treatment. The sperms are exposed to many risk factors such as oxidative stress,osmotic chock and ice crystallization. LÄS MER

  5. 4. Comparison between different freezing and thawing methods for human spermatozoa

    Kandidat-uppsats, Institutionen för medicinsk biokemi och mikrobiologi

    Författare :Sandra Castillo; [2011]
    Nyckelord :cryopreservation; sperm; ice crystallization; gradient wash; ampoule;

    Sammanfattning : Preservation of cells and tissues by freezing at temperatures below 70°C has led to new possibilities for the storage of germ cells for fertility preservation. During the freezing process problems might occur, the greatest being ice crystallization which can cause membrane destruction and thus cell death. LÄS MER

  7. 5. Induced immotility during long-term storage at +5°C does not prolong survival of dog spermatozoa

    L3-uppsats, SLU/Dept. of Clinical Sciences

    Författare :Al Kaium Mohammed Shahiduzzaman; [2006]
    Nyckelord :chilled semen; computer-assisted sperm analysis CASA ; sperm chromatin structure assay SCSA ; DNA fragmentation index DFI ;

    Sammanfattning : Shahiduzzaman, A.K.M, 2007. Induced immotility during long-term storage at +5°C does not prolong survival of dog spermatozoa. LÄS MER