Sökning: "germ cell"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden germ cell.

  1. 1. Single-cell transcriptomic and antibody-based proteomic analysis of Sertoli cell-specific markers in human testis

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Katharina Stanzel; [2023]
    Nyckelord :;

    Sammanfattning : The testis is a complex organ responsible for sperm production and hormone synthesis. Spermatogenesis, the process of sperm formation, occurs in the seminiferous tubules and involves the coordinated development of germ cells with the support of Sertoli cells. LÄS MER

  3. 2. Effects of early life exposure to flutamide on sexual development in Xenopus tropicalis

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Miljötoxikologi

    Författare :Christopher Hampton; [2019]
    Nyckelord :;

    Sammanfattning : While endocrine disrupting chemicals have become a serious concern in human and environmental toxicology, many of the methods used for investigating developmental toxicity require long exposure periods, and thus can be technically challenging, labour intensive and expensive. For example, the current standard method, the Larval Amphibian Growth and Development Assay (LAGDA) has an exposure period of ³130 days. LÄS MER

  4. 3. Analysis of somatic mutations in papillomavirus positive tumours from younger and older oropharyngeal cancer patients

    Magister-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Andreas Ährlund-Richter; [2016]
    Nyckelord :;

    Sammanfattning : ABSTRACT Background: Human Papilloma Virus positive (HPV+) Oropharyngeal Squamous Cell Carcinoma (OSCC), dominated by tonsillar cancer (TSCC) and base of tongue cancer (BOTSCC) has low mutation-frequency and better survival for younger than older patients.Aim: To examine if HPV+ TSCC and BOTSCC have distinct gene-mutation profiles, for 50 often-mutated genes in cancer, in younger compared to older patients and to test and compare different variant callers to get a deeper understanding of the data. LÄS MER

  5. 4. Counting Sertoli Cells in Thin Testicular Tissue

    Master-uppsats, Institutionen för informationsteknologi

    Författare :Abdolrahim Kadkhodamohammadi; [2012]
    Nyckelord :;

    Sammanfattning : This master thesis develops a novel system to model the tubular structure in thin sections of testicular tissue and count the Sertoli cells. A three-phase method is proposed to model the tubular structure in microscopic images of the tissue, the model is deployed to detect the cells. LÄS MER

  7. 5. 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