Sökning: "Ovulation"

Visar resultat 1 - 5 av 56 avhandlingar innehållade ordet Ovulation.

1. 1. OVULATION: Intra-ovarian mechanisms

   Författare :Farnosh Sørensen Zakerkish; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Ovulation; Human;

   Sammanfattning : Background: Ovulation is the central biological process involved in the menstrual cycle of women. Specifically, ovulation involves the tissue remodelling of the preovulatory follicle to achieve the rupture of the exterior follicle wall with the extrusion of the oocyte. LÄS MER

3. 2. Vascular mechanisms in ovulation

   Författare :Kenrokuro Mitsube; Göteborgs universitet; []
   Nyckelord :angiotensin; blood flow; nitric oxide; ovary; ovulation; permeability; permselectivity; rat.;

   Sammanfattning : Ovulation is a unique biological process, which involves the degradation and rupture of healthy tissue of the ovarian follicle and the extrusion of the oocyte. This process is initiated by the preovulatory surge of luteinizing hormone (LH), which leads to the up-regulation of various intraovarian mediators. LÄS MER

4. 3. Intrafollicular pressure and biochemical mediators in ovulation

   Författare :Markus Matousek; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ovulation; protein tyrosine kinase; ovulation; leukotriene B4; intrafollicular pressure; contractions and smooth muscle cell.;

   Sammanfattning : Ovulation is the process whereby the preovulatory follicle ruptures to enable a fertilisable ovum to escape from the interior of the ovary to the oviduct. During the ovulatory process, from he onset of the preovulatory LH-surge to the follicular rupture, marked biochemical and structural changes in follicles to enable it to rupture. LÄS MER

5. 4. Chemotactic factors in the human follicle at ovulation

   Författare :Eva Runesson; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chemokine; follicle; gonadotropin; human; ovary; ovulation;

   Sammanfattning : Ovulation is initiated by the midcycle gonadotropin surge, which leads to a controlled degradation of the follicle wall ending in follicular rupture and oocyte extrusion. The gonadotropins triggers several biochemical and biophysical changes such as vascular alterations, increased proteolytic enzyme activity and leukocyte extravasation, within the preovulatory follicle. LÄS MER

7. 5. Human ovulation. Studies on collagens, gelatinases and tissue inhibitors of metalloproteinases

   Författare :Anna Karin Lind; Göteborgs universitet; []
   Nyckelord :ovulation; ovary; human; follicle; collagen; MMP and TIMP;

   Sammanfattning : Ovulation is a highly regulated process, which involves the degradation and rupture of healthy tissue of the ovarian follicle and the extrusion of a fertilizable oocyte. This unique biological process is initiated by the LH-surge, which induces major vascular changes and remodelling of the extracellular matrix (ECM) in and around the follicle. LÄS MER