Sökning: "luteinizing hormone"

Visar resultat 21 - 25 av 27 avhandlingar innehållade orden luteinizing hormone.

  1. 21. Effects of endocrine disruptors on adreno-cortical and Leydig cell steroidogenesis

    Författare :Vichit Supornsilchai; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Endocrine disrupting chemicals EDCs ; steroidogenesis; Leydig cells; adrenocortical cells; steroidogenic acute regulatory protein StAR ; steroidogenic enzymes;

    Sammanfattning : A common sequential pathway for steroidogenesis, designed to produce steroid hormones, is expressed in the adrenal cortex, testes and ovaries. In this process, cholesterol is converted to all known steroids by specific enzymes in a tissue-specific manner. LÄS MER

  3. 22. Endometrial receptivity and regeneration in health and disease : molecular, cellular and clinical perspectives

    Författare :Carolina von Grothusen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Each month, the endometrium regenerates under the influence of the ovarian hormones and builds up to a receptive state in preparation for embryo implantation. In the absence of pregnancy, it sheds during menses and the regenerative cycle starts again. LÄS MER

  4. 23. Endometrial receptivity and development of new contraceptive methods

    Författare :Lena Marions; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Mifepristone; levonorgestrel; endometrial receptivity; emergency contraception; blastocyst implantation; integrins; cyclooxygenase;

    Sammanfattning : Ovulation and endometrial development as well as contraceptive efficacy was studied after treatment with the antiprogestin mifepristone. Mechanism of action after treatment with the gestagen levonorgestrel or mifepristone in doses effective for emergency contraception was also evaluated. LÄS MER

  5. 24. Hormones, muscles and oncological outcome in men with rectal cancer

    Författare :John Tapper; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Paper I. The aim was to elucidate if testosterone (T) dose-dependently increase muscle size in abdomen and pelvis, analogous to the known anabolic influence on appendicular muscles. Participants were young (age 18-50) healthy men participating in the 5a-reductase trail, a double blinded RCT. LÄS MER

  7. 25. Identification and characterization of stem Leydig cells in the testis

    Författare :Luise Landreh; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : In the testis, several cell types are needed to ensure male fertility, among them the testosterone-producing Leydig cells. Testosterone supports the maturation of sperm and maintains the male phenotype. Functional Leydig cells are therefore required to prevent testicular malfunction. LÄS MER