Theca cells are located in the ovarian follicles and become luteinized when the ovarian follicle breaks and a new corpus luteum is formed.
32.
Failure of ovulation in these mice is caused by lack of cumulus expansion and altered expression of various genes, including amphiregulin, in ovarian follicles.
33.
These regimens attack rapidly dividing cells in the body, including healthy cells like sperm and those belonging to the ovarian follicle ( egg ).
34.
Through the influence of a rise in follicle stimulating hormone ( FSH ) during the first days of the cycle, a few ovarian follicles are stimulated.
35.
From observing the regression of ovarian follicles in mammals, it was argued that a necessary cellular process existed to counterbalance the proliferation of cells by mitosis.
36.
This technique is also used in transvaginal oocyte retrieval to obtain human eggs ( oocytes ) through sonographic directed transvaginal puncture of ovarian follicles in IVF.
37.
It has been proposed that enhanced levels of Nitrogen oxide in rats can prevent atresia of the ovarian follicle, and depressed levels have the opposite effect.
38.
For example, in ovarian follicles, cholesterol is converted to androstenedione, an androgen, in the theca cells, which is then further converted into estrogen in the granulosa cells.
39.
In mammals, the first part of oogenesis starts in the germinal epithelium, which gives rise to the development of ovarian follicles, the functional unit of the ovary.
40.
The genetic component appears to be inherited in an autosomal dominant fashion with high genetic penetrance but variable ovarian follicle theca cells from women with the allele.
