Sökning: "LH hCG"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden LH hCG.
1. Intraovarian mechanisms influencing the human corpus luteum
Sammanfattning : Introduction: The human corpus luteum (CL) is a transient endocrine gland, only functionally active for about 14 days. Its principal function is to produce and secrete progesterone and thereby support the endometrium for implantation of a blastocyst and prevent rejection of the developing embryo. LÄS MER
2. Hormonal and paracrine influences on Leydig cell steroidogenesis
Sammanfattning : Androgen production by Leydig cells is critical for development of the male reproductive organs and for maintaining normal body homeostasis and fertility later in life. Biosynthesis of testosterone is driven by secretion of the gonadotropin, luteinizing hormone (LH) from the pituitary. LÄS MER
3. Blood flow and metabolism in the corpus luteum of the rat : in vivo and in vitro studies on the ovarian luteal and follicular compartment of the rat
Sammanfattning : The ovary undergoes cyclic changes in follicular growth and luteogenesis due to the action of gonadotropins and steroids. The ovary and especially the corpus luteum has an exteremely high blood flow. There is a gap in our knowledge about the physiological role of the high blood flow of the corpus luteum. LÄS MER
4. Intrafollicular pressure and biochemical mediators in ovulation
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. Effects of endocrine disruptors on adreno-cortical and Leydig cell steroidogenesis
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