Sökning: "in-vitro fertilization"

Visar resultat 31 - 35 av 54 avhandlingar innehållade orden in-vitro fertilization.

  1. 31. Calcium signaling in neurogenesis: regulation of proliferation, differentiation and migration of neural stem cells

    Författare :Paola Rebellato; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The calcium ion (Ca2+) is a highly versatile and ubiquitous signaling messenger in all cell types. Signal transduction occurs through changes in the cytosolic Ca2+ concentration after the opening of Ca2+ channels in the plasma membrane (PM) and endoplasmic reticulum (ER). LÄS MER

  3. 32. New micromanipulative techniques in reproductive biology

    Författare :José Inzunza; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : New micro manipulative techniques have facilitated development to help patients who suffer from infertility and spontaneous abortion, as well as those who carry severe genetic diseases and have risks of delivering an affected child. Preimplantation genetic diagnosis (PGD), which is based on obtaining blastomere biopsy from an eight-cell embryo, has made it possible to diagnose severe defects caused by a genetic factor. LÄS MER

  4. 33. Human ovarian follicles and oocytes : collection, cryopreservation, culture and gene expression

    Författare :Pu Zhang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Ovarian follicle; oocyte; follicular aspirate; organ culture; cAMP; cGMP; cryopreservation; microarray; human gene expression; embryonic stem cell; preimplantation;

    Sammanfattning : Infertility affects approximately 15% of couples globally. The most effective treatment today is in vitro fertilization. However, not all couples can be helped with the current techniques. To achieve better success, techniques of storage and in vitro maturation of ovarian follicles have to be improved. LÄS MER

  5. 34. Endocrine markers of ovarian function: Clinical and biological aspects with focus on Anti Müllerian hormone

    Författare :Leif Bungum; Malmö Reproduktionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anti Müllerian Hormone; ovarian reserve; biomarker; Luteinizing Hormone; fecundity; fertility; Time to Pregnancy;

    Sammanfattning : Declining birthrates and infertility are now a common problem in the Western World. Due to the tendency to postpone childbearing an increasing age of women who consider motherhood is generally seen. LÄS MER

  7. 35. Progesterone's effect on factors that influence gamete transport in the fallopian tube

    Författare :Anna Bylander; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Progesterone; Fallopian tube;

    Sammanfattning : ABSTRACT The fallopian tube plays an important role for successful female reproduction as it transport gametes to the fertilization site, nourish the developing embryo and transport it to the uterus at the suitable time for implantation. The overall aim of this thesis was to investigate the role of progesterone in control of gamete transport. LÄS MER